|
|
@@ -0,0 +1,13222 @@
|
|
|
+/*!
|
|
|
+ * Chart.js v3.5.1
|
|
|
+ * https://www.chartjs.org
|
|
|
+ * (c) 2021 Chart.js Contributors
|
|
|
+ * Released under the MIT License
|
|
|
+ */
|
|
|
+(function (global, factory) {
|
|
|
+typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
|
|
|
+typeof define === 'function' && define.amd ? define(factory) :
|
|
|
+(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory());
|
|
|
+}(this, (function () { 'use strict';
|
|
|
+
|
|
|
+function fontString(pixelSize, fontStyle, fontFamily) {
|
|
|
+ return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
|
|
|
+}
|
|
|
+const requestAnimFrame = (function() {
|
|
|
+ if (typeof window === 'undefined') {
|
|
|
+ return function(callback) {
|
|
|
+ return callback();
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return window.requestAnimationFrame;
|
|
|
+}());
|
|
|
+function throttled(fn, thisArg, updateFn) {
|
|
|
+ const updateArgs = updateFn || ((args) => Array.prototype.slice.call(args));
|
|
|
+ let ticking = false;
|
|
|
+ let args = [];
|
|
|
+ return function(...rest) {
|
|
|
+ args = updateArgs(rest);
|
|
|
+ if (!ticking) {
|
|
|
+ ticking = true;
|
|
|
+ requestAnimFrame.call(window, () => {
|
|
|
+ ticking = false;
|
|
|
+ fn.apply(thisArg, args);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ };
|
|
|
+}
|
|
|
+function debounce(fn, delay) {
|
|
|
+ let timeout;
|
|
|
+ return function() {
|
|
|
+ if (delay) {
|
|
|
+ clearTimeout(timeout);
|
|
|
+ timeout = setTimeout(fn, delay);
|
|
|
+ } else {
|
|
|
+ fn();
|
|
|
+ }
|
|
|
+ return delay;
|
|
|
+ };
|
|
|
+}
|
|
|
+const _toLeftRightCenter = (align) => align === 'start' ? 'left' : align === 'end' ? 'right' : 'center';
|
|
|
+const _alignStartEnd = (align, start, end) => align === 'start' ? start : align === 'end' ? end : (start + end) / 2;
|
|
|
+const _textX = (align, left, right, rtl) => {
|
|
|
+ const check = rtl ? 'left' : 'right';
|
|
|
+ return align === check ? right : align === 'center' ? (left + right) / 2 : left;
|
|
|
+};
|
|
|
+
|
|
|
+class Animator {
|
|
|
+ constructor() {
|
|
|
+ this._request = null;
|
|
|
+ this._charts = new Map();
|
|
|
+ this._running = false;
|
|
|
+ this._lastDate = undefined;
|
|
|
+ }
|
|
|
+ _notify(chart, anims, date, type) {
|
|
|
+ const callbacks = anims.listeners[type];
|
|
|
+ const numSteps = anims.duration;
|
|
|
+ callbacks.forEach(fn => fn({
|
|
|
+ chart,
|
|
|
+ initial: anims.initial,
|
|
|
+ numSteps,
|
|
|
+ currentStep: Math.min(date - anims.start, numSteps)
|
|
|
+ }));
|
|
|
+ }
|
|
|
+ _refresh() {
|
|
|
+ const me = this;
|
|
|
+ if (me._request) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ me._running = true;
|
|
|
+ me._request = requestAnimFrame.call(window, () => {
|
|
|
+ me._update();
|
|
|
+ me._request = null;
|
|
|
+ if (me._running) {
|
|
|
+ me._refresh();
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ _update(date = Date.now()) {
|
|
|
+ const me = this;
|
|
|
+ let remaining = 0;
|
|
|
+ me._charts.forEach((anims, chart) => {
|
|
|
+ if (!anims.running || !anims.items.length) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const items = anims.items;
|
|
|
+ let i = items.length - 1;
|
|
|
+ let draw = false;
|
|
|
+ let item;
|
|
|
+ for (; i >= 0; --i) {
|
|
|
+ item = items[i];
|
|
|
+ if (item._active) {
|
|
|
+ if (item._total > anims.duration) {
|
|
|
+ anims.duration = item._total;
|
|
|
+ }
|
|
|
+ item.tick(date);
|
|
|
+ draw = true;
|
|
|
+ } else {
|
|
|
+ items[i] = items[items.length - 1];
|
|
|
+ items.pop();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (draw) {
|
|
|
+ chart.draw();
|
|
|
+ me._notify(chart, anims, date, 'progress');
|
|
|
+ }
|
|
|
+ if (!items.length) {
|
|
|
+ anims.running = false;
|
|
|
+ me._notify(chart, anims, date, 'complete');
|
|
|
+ anims.initial = false;
|
|
|
+ }
|
|
|
+ remaining += items.length;
|
|
|
+ });
|
|
|
+ me._lastDate = date;
|
|
|
+ if (remaining === 0) {
|
|
|
+ me._running = false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _getAnims(chart) {
|
|
|
+ const charts = this._charts;
|
|
|
+ let anims = charts.get(chart);
|
|
|
+ if (!anims) {
|
|
|
+ anims = {
|
|
|
+ running: false,
|
|
|
+ initial: true,
|
|
|
+ items: [],
|
|
|
+ listeners: {
|
|
|
+ complete: [],
|
|
|
+ progress: []
|
|
|
+ }
|
|
|
+ };
|
|
|
+ charts.set(chart, anims);
|
|
|
+ }
|
|
|
+ return anims;
|
|
|
+ }
|
|
|
+ listen(chart, event, cb) {
|
|
|
+ this._getAnims(chart).listeners[event].push(cb);
|
|
|
+ }
|
|
|
+ add(chart, items) {
|
|
|
+ if (!items || !items.length) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ this._getAnims(chart).items.push(...items);
|
|
|
+ }
|
|
|
+ has(chart) {
|
|
|
+ return this._getAnims(chart).items.length > 0;
|
|
|
+ }
|
|
|
+ start(chart) {
|
|
|
+ const anims = this._charts.get(chart);
|
|
|
+ if (!anims) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ anims.running = true;
|
|
|
+ anims.start = Date.now();
|
|
|
+ anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0);
|
|
|
+ this._refresh();
|
|
|
+ }
|
|
|
+ running(chart) {
|
|
|
+ if (!this._running) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ const anims = this._charts.get(chart);
|
|
|
+ if (!anims || !anims.running || !anims.items.length) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ stop(chart) {
|
|
|
+ const anims = this._charts.get(chart);
|
|
|
+ if (!anims || !anims.items.length) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const items = anims.items;
|
|
|
+ let i = items.length - 1;
|
|
|
+ for (; i >= 0; --i) {
|
|
|
+ items[i].cancel();
|
|
|
+ }
|
|
|
+ anims.items = [];
|
|
|
+ this._notify(chart, anims, Date.now(), 'complete');
|
|
|
+ }
|
|
|
+ remove(chart) {
|
|
|
+ return this._charts.delete(chart);
|
|
|
+ }
|
|
|
+}
|
|
|
+var animator = new Animator();
|
|
|
+
|
|
|
+/*!
|
|
|
+ * @kurkle/color v0.1.9
|
|
|
+ * https://github.com/kurkle/color#readme
|
|
|
+ * (c) 2020 Jukka Kurkela
|
|
|
+ * Released under the MIT License
|
|
|
+ */
|
|
|
+const map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15};
|
|
|
+const hex = '0123456789ABCDEF';
|
|
|
+const h1 = (b) => hex[b & 0xF];
|
|
|
+const h2 = (b) => hex[(b & 0xF0) >> 4] + hex[b & 0xF];
|
|
|
+const eq = (b) => (((b & 0xF0) >> 4) === (b & 0xF));
|
|
|
+function isShort(v) {
|
|
|
+ return eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a);
|
|
|
+}
|
|
|
+function hexParse(str) {
|
|
|
+ var len = str.length;
|
|
|
+ var ret;
|
|
|
+ if (str[0] === '#') {
|
|
|
+ if (len === 4 || len === 5) {
|
|
|
+ ret = {
|
|
|
+ r: 255 & map$1[str[1]] * 17,
|
|
|
+ g: 255 & map$1[str[2]] * 17,
|
|
|
+ b: 255 & map$1[str[3]] * 17,
|
|
|
+ a: len === 5 ? map$1[str[4]] * 17 : 255
|
|
|
+ };
|
|
|
+ } else if (len === 7 || len === 9) {
|
|
|
+ ret = {
|
|
|
+ r: map$1[str[1]] << 4 | map$1[str[2]],
|
|
|
+ g: map$1[str[3]] << 4 | map$1[str[4]],
|
|
|
+ b: map$1[str[5]] << 4 | map$1[str[6]],
|
|
|
+ a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255
|
|
|
+ };
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+function hexString(v) {
|
|
|
+ var f = isShort(v) ? h1 : h2;
|
|
|
+ return v
|
|
|
+ ? '#' + f(v.r) + f(v.g) + f(v.b) + (v.a < 255 ? f(v.a) : '')
|
|
|
+ : v;
|
|
|
+}
|
|
|
+function round(v) {
|
|
|
+ return v + 0.5 | 0;
|
|
|
+}
|
|
|
+const lim = (v, l, h) => Math.max(Math.min(v, h), l);
|
|
|
+function p2b(v) {
|
|
|
+ return lim(round(v * 2.55), 0, 255);
|
|
|
+}
|
|
|
+function n2b(v) {
|
|
|
+ return lim(round(v * 255), 0, 255);
|
|
|
+}
|
|
|
+function b2n(v) {
|
|
|
+ return lim(round(v / 2.55) / 100, 0, 1);
|
|
|
+}
|
|
|
+function n2p(v) {
|
|
|
+ return lim(round(v * 100), 0, 100);
|
|
|
+}
|
|
|
+const RGB_RE = /^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/;
|
|
|
+function rgbParse(str) {
|
|
|
+ const m = RGB_RE.exec(str);
|
|
|
+ let a = 255;
|
|
|
+ let r, g, b;
|
|
|
+ if (!m) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (m[7] !== r) {
|
|
|
+ const v = +m[7];
|
|
|
+ a = 255 & (m[8] ? p2b(v) : v * 255);
|
|
|
+ }
|
|
|
+ r = +m[1];
|
|
|
+ g = +m[3];
|
|
|
+ b = +m[5];
|
|
|
+ r = 255 & (m[2] ? p2b(r) : r);
|
|
|
+ g = 255 & (m[4] ? p2b(g) : g);
|
|
|
+ b = 255 & (m[6] ? p2b(b) : b);
|
|
|
+ return {
|
|
|
+ r: r,
|
|
|
+ g: g,
|
|
|
+ b: b,
|
|
|
+ a: a
|
|
|
+ };
|
|
|
+}
|
|
|
+function rgbString(v) {
|
|
|
+ return v && (
|
|
|
+ v.a < 255
|
|
|
+ ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})`
|
|
|
+ : `rgb(${v.r}, ${v.g}, ${v.b})`
|
|
|
+ );
|
|
|
+}
|
|
|
+const HUE_RE = /^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/;
|
|
|
+function hsl2rgbn(h, s, l) {
|
|
|
+ const a = s * Math.min(l, 1 - l);
|
|
|
+ const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);
|
|
|
+ return [f(0), f(8), f(4)];
|
|
|
+}
|
|
|
+function hsv2rgbn(h, s, v) {
|
|
|
+ const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0);
|
|
|
+ return [f(5), f(3), f(1)];
|
|
|
+}
|
|
|
+function hwb2rgbn(h, w, b) {
|
|
|
+ const rgb = hsl2rgbn(h, 1, 0.5);
|
|
|
+ let i;
|
|
|
+ if (w + b > 1) {
|
|
|
+ i = 1 / (w + b);
|
|
|
+ w *= i;
|
|
|
+ b *= i;
|
|
|
+ }
|
|
|
+ for (i = 0; i < 3; i++) {
|
|
|
+ rgb[i] *= 1 - w - b;
|
|
|
+ rgb[i] += w;
|
|
|
+ }
|
|
|
+ return rgb;
|
|
|
+}
|
|
|
+function rgb2hsl(v) {
|
|
|
+ const range = 255;
|
|
|
+ const r = v.r / range;
|
|
|
+ const g = v.g / range;
|
|
|
+ const b = v.b / range;
|
|
|
+ const max = Math.max(r, g, b);
|
|
|
+ const min = Math.min(r, g, b);
|
|
|
+ const l = (max + min) / 2;
|
|
|
+ let h, s, d;
|
|
|
+ if (max !== min) {
|
|
|
+ d = max - min;
|
|
|
+ s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
|
|
|
+ h = max === r
|
|
|
+ ? ((g - b) / d) + (g < b ? 6 : 0)
|
|
|
+ : max === g
|
|
|
+ ? (b - r) / d + 2
|
|
|
+ : (r - g) / d + 4;
|
|
|
+ h = h * 60 + 0.5;
|
|
|
+ }
|
|
|
+ return [h | 0, s || 0, l];
|
|
|
+}
|
|
|
+function calln(f, a, b, c) {
|
|
|
+ return (
|
|
|
+ Array.isArray(a)
|
|
|
+ ? f(a[0], a[1], a[2])
|
|
|
+ : f(a, b, c)
|
|
|
+ ).map(n2b);
|
|
|
+}
|
|
|
+function hsl2rgb(h, s, l) {
|
|
|
+ return calln(hsl2rgbn, h, s, l);
|
|
|
+}
|
|
|
+function hwb2rgb(h, w, b) {
|
|
|
+ return calln(hwb2rgbn, h, w, b);
|
|
|
+}
|
|
|
+function hsv2rgb(h, s, v) {
|
|
|
+ return calln(hsv2rgbn, h, s, v);
|
|
|
+}
|
|
|
+function hue(h) {
|
|
|
+ return (h % 360 + 360) % 360;
|
|
|
+}
|
|
|
+function hueParse(str) {
|
|
|
+ const m = HUE_RE.exec(str);
|
|
|
+ let a = 255;
|
|
|
+ let v;
|
|
|
+ if (!m) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (m[5] !== v) {
|
|
|
+ a = m[6] ? p2b(+m[5]) : n2b(+m[5]);
|
|
|
+ }
|
|
|
+ const h = hue(+m[2]);
|
|
|
+ const p1 = +m[3] / 100;
|
|
|
+ const p2 = +m[4] / 100;
|
|
|
+ if (m[1] === 'hwb') {
|
|
|
+ v = hwb2rgb(h, p1, p2);
|
|
|
+ } else if (m[1] === 'hsv') {
|
|
|
+ v = hsv2rgb(h, p1, p2);
|
|
|
+ } else {
|
|
|
+ v = hsl2rgb(h, p1, p2);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ r: v[0],
|
|
|
+ g: v[1],
|
|
|
+ b: v[2],
|
|
|
+ a: a
|
|
|
+ };
|
|
|
+}
|
|
|
+function rotate(v, deg) {
|
|
|
+ var h = rgb2hsl(v);
|
|
|
+ h[0] = hue(h[0] + deg);
|
|
|
+ h = hsl2rgb(h);
|
|
|
+ v.r = h[0];
|
|
|
+ v.g = h[1];
|
|
|
+ v.b = h[2];
|
|
|
+}
|
|
|
+function hslString(v) {
|
|
|
+ if (!v) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const a = rgb2hsl(v);
|
|
|
+ const h = a[0];
|
|
|
+ const s = n2p(a[1]);
|
|
|
+ const l = n2p(a[2]);
|
|
|
+ return v.a < 255
|
|
|
+ ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})`
|
|
|
+ : `hsl(${h}, ${s}%, ${l}%)`;
|
|
|
+}
|
|
|
+const map$1$1 = {
|
|
|
+ x: 'dark',
|
|
|
+ Z: 'light',
|
|
|
+ Y: 're',
|
|
|
+ X: 'blu',
|
|
|
+ W: 'gr',
|
|
|
+ V: 'medium',
|
|
|
+ U: 'slate',
|
|
|
+ A: 'ee',
|
|
|
+ T: 'ol',
|
|
|
+ S: 'or',
|
|
|
+ B: 'ra',
|
|
|
+ C: 'lateg',
|
|
|
+ D: 'ights',
|
|
|
+ R: 'in',
|
|
|
+ Q: 'turquois',
|
|
|
+ E: 'hi',
|
|
|
+ P: 'ro',
|
|
|
+ O: 'al',
|
|
|
+ N: 'le',
|
|
|
+ M: 'de',
|
|
|
+ L: 'yello',
|
|
|
+ F: 'en',
|
|
|
+ K: 'ch',
|
|
|
+ G: 'arks',
|
|
|
+ H: 'ea',
|
|
|
+ I: 'ightg',
|
|
|
+ J: 'wh'
|
|
|
+};
|
|
|
+const names = {
|
|
|
+ OiceXe: 'f0f8ff',
|
|
|
+ antiquewEte: 'faebd7',
|
|
|
+ aqua: 'ffff',
|
|
|
+ aquamarRe: '7fffd4',
|
|
|
+ azuY: 'f0ffff',
|
|
|
+ beige: 'f5f5dc',
|
|
|
+ bisque: 'ffe4c4',
|
|
|
+ black: '0',
|
|
|
+ blanKedOmond: 'ffebcd',
|
|
|
+ Xe: 'ff',
|
|
|
+ XeviTet: '8a2be2',
|
|
|
+ bPwn: 'a52a2a',
|
|
|
+ burlywood: 'deb887',
|
|
|
+ caMtXe: '5f9ea0',
|
|
|
+ KartYuse: '7fff00',
|
|
|
+ KocTate: 'd2691e',
|
|
|
+ cSO: 'ff7f50',
|
|
|
+ cSnflowerXe: '6495ed',
|
|
|
+ cSnsilk: 'fff8dc',
|
|
|
+ crimson: 'dc143c',
|
|
|
+ cyan: 'ffff',
|
|
|
+ xXe: '8b',
|
|
|
+ xcyan: '8b8b',
|
|
|
+ xgTMnPd: 'b8860b',
|
|
|
+ xWay: 'a9a9a9',
|
|
|
+ xgYF: '6400',
|
|
|
+ xgYy: 'a9a9a9',
|
|
|
+ xkhaki: 'bdb76b',
|
|
|
+ xmagFta: '8b008b',
|
|
|
+ xTivegYF: '556b2f',
|
|
|
+ xSange: 'ff8c00',
|
|
|
+ xScEd: '9932cc',
|
|
|
+ xYd: '8b0000',
|
|
|
+ xsOmon: 'e9967a',
|
|
|
+ xsHgYF: '8fbc8f',
|
|
|
+ xUXe: '483d8b',
|
|
|
+ xUWay: '2f4f4f',
|
|
|
+ xUgYy: '2f4f4f',
|
|
|
+ xQe: 'ced1',
|
|
|
+ xviTet: '9400d3',
|
|
|
+ dAppRk: 'ff1493',
|
|
|
+ dApskyXe: 'bfff',
|
|
|
+ dimWay: '696969',
|
|
|
+ dimgYy: '696969',
|
|
|
+ dodgerXe: '1e90ff',
|
|
|
+ fiYbrick: 'b22222',
|
|
|
+ flSOwEte: 'fffaf0',
|
|
|
+ foYstWAn: '228b22',
|
|
|
+ fuKsia: 'ff00ff',
|
|
|
+ gaRsbSo: 'dcdcdc',
|
|
|
+ ghostwEte: 'f8f8ff',
|
|
|
+ gTd: 'ffd700',
|
|
|
+ gTMnPd: 'daa520',
|
|
|
+ Way: '808080',
|
|
|
+ gYF: '8000',
|
|
|
+ gYFLw: 'adff2f',
|
|
|
+ gYy: '808080',
|
|
|
+ honeyMw: 'f0fff0',
|
|
|
+ hotpRk: 'ff69b4',
|
|
|
+ RdianYd: 'cd5c5c',
|
|
|
+ Rdigo: '4b0082',
|
|
|
+ ivSy: 'fffff0',
|
|
|
+ khaki: 'f0e68c',
|
|
|
+ lavFMr: 'e6e6fa',
|
|
|
+ lavFMrXsh: 'fff0f5',
|
|
|
+ lawngYF: '7cfc00',
|
|
|
+ NmoncEffon: 'fffacd',
|
|
|
+ ZXe: 'add8e6',
|
|
|
+ ZcSO: 'f08080',
|
|
|
+ Zcyan: 'e0ffff',
|
|
|
+ ZgTMnPdLw: 'fafad2',
|
|
|
+ ZWay: 'd3d3d3',
|
|
|
+ ZgYF: '90ee90',
|
|
|
+ ZgYy: 'd3d3d3',
|
|
|
+ ZpRk: 'ffb6c1',
|
|
|
+ ZsOmon: 'ffa07a',
|
|
|
+ ZsHgYF: '20b2aa',
|
|
|
+ ZskyXe: '87cefa',
|
|
|
+ ZUWay: '778899',
|
|
|
+ ZUgYy: '778899',
|
|
|
+ ZstAlXe: 'b0c4de',
|
|
|
+ ZLw: 'ffffe0',
|
|
|
+ lime: 'ff00',
|
|
|
+ limegYF: '32cd32',
|
|
|
+ lRF: 'faf0e6',
|
|
|
+ magFta: 'ff00ff',
|
|
|
+ maPon: '800000',
|
|
|
+ VaquamarRe: '66cdaa',
|
|
|
+ VXe: 'cd',
|
|
|
+ VScEd: 'ba55d3',
|
|
|
+ VpurpN: '9370db',
|
|
|
+ VsHgYF: '3cb371',
|
|
|
+ VUXe: '7b68ee',
|
|
|
+ VsprRggYF: 'fa9a',
|
|
|
+ VQe: '48d1cc',
|
|
|
+ VviTetYd: 'c71585',
|
|
|
+ midnightXe: '191970',
|
|
|
+ mRtcYam: 'f5fffa',
|
|
|
+ mistyPse: 'ffe4e1',
|
|
|
+ moccasR: 'ffe4b5',
|
|
|
+ navajowEte: 'ffdead',
|
|
|
+ navy: '80',
|
|
|
+ Tdlace: 'fdf5e6',
|
|
|
+ Tive: '808000',
|
|
|
+ TivedBb: '6b8e23',
|
|
|
+ Sange: 'ffa500',
|
|
|
+ SangeYd: 'ff4500',
|
|
|
+ ScEd: 'da70d6',
|
|
|
+ pOegTMnPd: 'eee8aa',
|
|
|
+ pOegYF: '98fb98',
|
|
|
+ pOeQe: 'afeeee',
|
|
|
+ pOeviTetYd: 'db7093',
|
|
|
+ papayawEp: 'ffefd5',
|
|
|
+ pHKpuff: 'ffdab9',
|
|
|
+ peru: 'cd853f',
|
|
|
+ pRk: 'ffc0cb',
|
|
|
+ plum: 'dda0dd',
|
|
|
+ powMrXe: 'b0e0e6',
|
|
|
+ purpN: '800080',
|
|
|
+ YbeccapurpN: '663399',
|
|
|
+ Yd: 'ff0000',
|
|
|
+ Psybrown: 'bc8f8f',
|
|
|
+ PyOXe: '4169e1',
|
|
|
+ saddNbPwn: '8b4513',
|
|
|
+ sOmon: 'fa8072',
|
|
|
+ sandybPwn: 'f4a460',
|
|
|
+ sHgYF: '2e8b57',
|
|
|
+ sHshell: 'fff5ee',
|
|
|
+ siFna: 'a0522d',
|
|
|
+ silver: 'c0c0c0',
|
|
|
+ skyXe: '87ceeb',
|
|
|
+ UXe: '6a5acd',
|
|
|
+ UWay: '708090',
|
|
|
+ UgYy: '708090',
|
|
|
+ snow: 'fffafa',
|
|
|
+ sprRggYF: 'ff7f',
|
|
|
+ stAlXe: '4682b4',
|
|
|
+ tan: 'd2b48c',
|
|
|
+ teO: '8080',
|
|
|
+ tEstN: 'd8bfd8',
|
|
|
+ tomato: 'ff6347',
|
|
|
+ Qe: '40e0d0',
|
|
|
+ viTet: 'ee82ee',
|
|
|
+ JHt: 'f5deb3',
|
|
|
+ wEte: 'ffffff',
|
|
|
+ wEtesmoke: 'f5f5f5',
|
|
|
+ Lw: 'ffff00',
|
|
|
+ LwgYF: '9acd32'
|
|
|
+};
|
|
|
+function unpack() {
|
|
|
+ const unpacked = {};
|
|
|
+ const keys = Object.keys(names);
|
|
|
+ const tkeys = Object.keys(map$1$1);
|
|
|
+ let i, j, k, ok, nk;
|
|
|
+ for (i = 0; i < keys.length; i++) {
|
|
|
+ ok = nk = keys[i];
|
|
|
+ for (j = 0; j < tkeys.length; j++) {
|
|
|
+ k = tkeys[j];
|
|
|
+ nk = nk.replace(k, map$1$1[k]);
|
|
|
+ }
|
|
|
+ k = parseInt(names[ok], 16);
|
|
|
+ unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF];
|
|
|
+ }
|
|
|
+ return unpacked;
|
|
|
+}
|
|
|
+let names$1;
|
|
|
+function nameParse(str) {
|
|
|
+ if (!names$1) {
|
|
|
+ names$1 = unpack();
|
|
|
+ names$1.transparent = [0, 0, 0, 0];
|
|
|
+ }
|
|
|
+ const a = names$1[str.toLowerCase()];
|
|
|
+ return a && {
|
|
|
+ r: a[0],
|
|
|
+ g: a[1],
|
|
|
+ b: a[2],
|
|
|
+ a: a.length === 4 ? a[3] : 255
|
|
|
+ };
|
|
|
+}
|
|
|
+function modHSL(v, i, ratio) {
|
|
|
+ if (v) {
|
|
|
+ let tmp = rgb2hsl(v);
|
|
|
+ tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1));
|
|
|
+ tmp = hsl2rgb(tmp);
|
|
|
+ v.r = tmp[0];
|
|
|
+ v.g = tmp[1];
|
|
|
+ v.b = tmp[2];
|
|
|
+ }
|
|
|
+}
|
|
|
+function clone$1(v, proto) {
|
|
|
+ return v ? Object.assign(proto || {}, v) : v;
|
|
|
+}
|
|
|
+function fromObject(input) {
|
|
|
+ var v = {r: 0, g: 0, b: 0, a: 255};
|
|
|
+ if (Array.isArray(input)) {
|
|
|
+ if (input.length >= 3) {
|
|
|
+ v = {r: input[0], g: input[1], b: input[2], a: 255};
|
|
|
+ if (input.length > 3) {
|
|
|
+ v.a = n2b(input[3]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ v = clone$1(input, {r: 0, g: 0, b: 0, a: 1});
|
|
|
+ v.a = n2b(v.a);
|
|
|
+ }
|
|
|
+ return v;
|
|
|
+}
|
|
|
+function functionParse(str) {
|
|
|
+ if (str.charAt(0) === 'r') {
|
|
|
+ return rgbParse(str);
|
|
|
+ }
|
|
|
+ return hueParse(str);
|
|
|
+}
|
|
|
+class Color {
|
|
|
+ constructor(input) {
|
|
|
+ if (input instanceof Color) {
|
|
|
+ return input;
|
|
|
+ }
|
|
|
+ const type = typeof input;
|
|
|
+ let v;
|
|
|
+ if (type === 'object') {
|
|
|
+ v = fromObject(input);
|
|
|
+ } else if (type === 'string') {
|
|
|
+ v = hexParse(input) || nameParse(input) || functionParse(input);
|
|
|
+ }
|
|
|
+ this._rgb = v;
|
|
|
+ this._valid = !!v;
|
|
|
+ }
|
|
|
+ get valid() {
|
|
|
+ return this._valid;
|
|
|
+ }
|
|
|
+ get rgb() {
|
|
|
+ var v = clone$1(this._rgb);
|
|
|
+ if (v) {
|
|
|
+ v.a = b2n(v.a);
|
|
|
+ }
|
|
|
+ return v;
|
|
|
+ }
|
|
|
+ set rgb(obj) {
|
|
|
+ this._rgb = fromObject(obj);
|
|
|
+ }
|
|
|
+ rgbString() {
|
|
|
+ return this._valid ? rgbString(this._rgb) : this._rgb;
|
|
|
+ }
|
|
|
+ hexString() {
|
|
|
+ return this._valid ? hexString(this._rgb) : this._rgb;
|
|
|
+ }
|
|
|
+ hslString() {
|
|
|
+ return this._valid ? hslString(this._rgb) : this._rgb;
|
|
|
+ }
|
|
|
+ mix(color, weight) {
|
|
|
+ const me = this;
|
|
|
+ if (color) {
|
|
|
+ const c1 = me.rgb;
|
|
|
+ const c2 = color.rgb;
|
|
|
+ let w2;
|
|
|
+ const p = weight === w2 ? 0.5 : weight;
|
|
|
+ const w = 2 * p - 1;
|
|
|
+ const a = c1.a - c2.a;
|
|
|
+ const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
|
|
|
+ w2 = 1 - w1;
|
|
|
+ c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5;
|
|
|
+ c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5;
|
|
|
+ c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5;
|
|
|
+ c1.a = p * c1.a + (1 - p) * c2.a;
|
|
|
+ me.rgb = c1;
|
|
|
+ }
|
|
|
+ return me;
|
|
|
+ }
|
|
|
+ clone() {
|
|
|
+ return new Color(this.rgb);
|
|
|
+ }
|
|
|
+ alpha(a) {
|
|
|
+ this._rgb.a = n2b(a);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ clearer(ratio) {
|
|
|
+ const rgb = this._rgb;
|
|
|
+ rgb.a *= 1 - ratio;
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ greyscale() {
|
|
|
+ const rgb = this._rgb;
|
|
|
+ const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11);
|
|
|
+ rgb.r = rgb.g = rgb.b = val;
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ opaquer(ratio) {
|
|
|
+ const rgb = this._rgb;
|
|
|
+ rgb.a *= 1 + ratio;
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ negate() {
|
|
|
+ const v = this._rgb;
|
|
|
+ v.r = 255 - v.r;
|
|
|
+ v.g = 255 - v.g;
|
|
|
+ v.b = 255 - v.b;
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ lighten(ratio) {
|
|
|
+ modHSL(this._rgb, 2, ratio);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ darken(ratio) {
|
|
|
+ modHSL(this._rgb, 2, -ratio);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ saturate(ratio) {
|
|
|
+ modHSL(this._rgb, 1, ratio);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ desaturate(ratio) {
|
|
|
+ modHSL(this._rgb, 1, -ratio);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ rotate(deg) {
|
|
|
+ rotate(this._rgb, deg);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+}
|
|
|
+function index_esm(input) {
|
|
|
+ return new Color(input);
|
|
|
+}
|
|
|
+
|
|
|
+const isPatternOrGradient = (value) => value instanceof CanvasGradient || value instanceof CanvasPattern;
|
|
|
+function color(value) {
|
|
|
+ return isPatternOrGradient(value) ? value : index_esm(value);
|
|
|
+}
|
|
|
+function getHoverColor(value) {
|
|
|
+ return isPatternOrGradient(value)
|
|
|
+ ? value
|
|
|
+ : index_esm(value).saturate(0.5).darken(0.1).hexString();
|
|
|
+}
|
|
|
+
|
|
|
+function noop() {}
|
|
|
+const uid = (function() {
|
|
|
+ let id = 0;
|
|
|
+ return function() {
|
|
|
+ return id++;
|
|
|
+ };
|
|
|
+}());
|
|
|
+function isNullOrUndef(value) {
|
|
|
+ return value === null || typeof value === 'undefined';
|
|
|
+}
|
|
|
+function isArray(value) {
|
|
|
+ if (Array.isArray && Array.isArray(value)) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ const type = Object.prototype.toString.call(value);
|
|
|
+ if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+function isObject(value) {
|
|
|
+ return value !== null && Object.prototype.toString.call(value) === '[object Object]';
|
|
|
+}
|
|
|
+const isNumberFinite = (value) => (typeof value === 'number' || value instanceof Number) && isFinite(+value);
|
|
|
+function finiteOrDefault(value, defaultValue) {
|
|
|
+ return isNumberFinite(value) ? value : defaultValue;
|
|
|
+}
|
|
|
+function valueOrDefault(value, defaultValue) {
|
|
|
+ return typeof value === 'undefined' ? defaultValue : value;
|
|
|
+}
|
|
|
+const toPercentage = (value, dimension) =>
|
|
|
+ typeof value === 'string' && value.endsWith('%') ?
|
|
|
+ parseFloat(value) / 100
|
|
|
+ : value / dimension;
|
|
|
+const toDimension = (value, dimension) =>
|
|
|
+ typeof value === 'string' && value.endsWith('%') ?
|
|
|
+ parseFloat(value) / 100 * dimension
|
|
|
+ : +value;
|
|
|
+function callback(fn, args, thisArg) {
|
|
|
+ if (fn && typeof fn.call === 'function') {
|
|
|
+ return fn.apply(thisArg, args);
|
|
|
+ }
|
|
|
+}
|
|
|
+function each(loopable, fn, thisArg, reverse) {
|
|
|
+ let i, len, keys;
|
|
|
+ if (isArray(loopable)) {
|
|
|
+ len = loopable.length;
|
|
|
+ if (reverse) {
|
|
|
+ for (i = len - 1; i >= 0; i--) {
|
|
|
+ fn.call(thisArg, loopable[i], i);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ for (i = 0; i < len; i++) {
|
|
|
+ fn.call(thisArg, loopable[i], i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else if (isObject(loopable)) {
|
|
|
+ keys = Object.keys(loopable);
|
|
|
+ len = keys.length;
|
|
|
+ for (i = 0; i < len; i++) {
|
|
|
+ fn.call(thisArg, loopable[keys[i]], keys[i]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function _elementsEqual(a0, a1) {
|
|
|
+ let i, ilen, v0, v1;
|
|
|
+ if (!a0 || !a1 || a0.length !== a1.length) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = a0.length; i < ilen; ++i) {
|
|
|
+ v0 = a0[i];
|
|
|
+ v1 = a1[i];
|
|
|
+ if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+}
|
|
|
+function clone(source) {
|
|
|
+ if (isArray(source)) {
|
|
|
+ return source.map(clone);
|
|
|
+ }
|
|
|
+ if (isObject(source)) {
|
|
|
+ const target = Object.create(null);
|
|
|
+ const keys = Object.keys(source);
|
|
|
+ const klen = keys.length;
|
|
|
+ let k = 0;
|
|
|
+ for (; k < klen; ++k) {
|
|
|
+ target[keys[k]] = clone(source[keys[k]]);
|
|
|
+ }
|
|
|
+ return target;
|
|
|
+ }
|
|
|
+ return source;
|
|
|
+}
|
|
|
+function isValidKey(key) {
|
|
|
+ return ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1;
|
|
|
+}
|
|
|
+function _merger(key, target, source, options) {
|
|
|
+ if (!isValidKey(key)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const tval = target[key];
|
|
|
+ const sval = source[key];
|
|
|
+ if (isObject(tval) && isObject(sval)) {
|
|
|
+ merge(tval, sval, options);
|
|
|
+ } else {
|
|
|
+ target[key] = clone(sval);
|
|
|
+ }
|
|
|
+}
|
|
|
+function merge(target, source, options) {
|
|
|
+ const sources = isArray(source) ? source : [source];
|
|
|
+ const ilen = sources.length;
|
|
|
+ if (!isObject(target)) {
|
|
|
+ return target;
|
|
|
+ }
|
|
|
+ options = options || {};
|
|
|
+ const merger = options.merger || _merger;
|
|
|
+ for (let i = 0; i < ilen; ++i) {
|
|
|
+ source = sources[i];
|
|
|
+ if (!isObject(source)) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const keys = Object.keys(source);
|
|
|
+ for (let k = 0, klen = keys.length; k < klen; ++k) {
|
|
|
+ merger(keys[k], target, source, options);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return target;
|
|
|
+}
|
|
|
+function mergeIf(target, source) {
|
|
|
+ return merge(target, source, {merger: _mergerIf});
|
|
|
+}
|
|
|
+function _mergerIf(key, target, source) {
|
|
|
+ if (!isValidKey(key)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const tval = target[key];
|
|
|
+ const sval = source[key];
|
|
|
+ if (isObject(tval) && isObject(sval)) {
|
|
|
+ mergeIf(tval, sval);
|
|
|
+ } else if (!Object.prototype.hasOwnProperty.call(target, key)) {
|
|
|
+ target[key] = clone(sval);
|
|
|
+ }
|
|
|
+}
|
|
|
+function _deprecated(scope, value, previous, current) {
|
|
|
+ if (value !== undefined) {
|
|
|
+ console.warn(scope + ': "' + previous +
|
|
|
+ '" is deprecated. Please use "' + current + '" instead');
|
|
|
+ }
|
|
|
+}
|
|
|
+const emptyString = '';
|
|
|
+const dot = '.';
|
|
|
+function indexOfDotOrLength(key, start) {
|
|
|
+ const idx = key.indexOf(dot, start);
|
|
|
+ return idx === -1 ? key.length : idx;
|
|
|
+}
|
|
|
+function resolveObjectKey(obj, key) {
|
|
|
+ if (key === emptyString) {
|
|
|
+ return obj;
|
|
|
+ }
|
|
|
+ let pos = 0;
|
|
|
+ let idx = indexOfDotOrLength(key, pos);
|
|
|
+ while (obj && idx > pos) {
|
|
|
+ obj = obj[key.substr(pos, idx - pos)];
|
|
|
+ pos = idx + 1;
|
|
|
+ idx = indexOfDotOrLength(key, pos);
|
|
|
+ }
|
|
|
+ return obj;
|
|
|
+}
|
|
|
+function _capitalize(str) {
|
|
|
+ return str.charAt(0).toUpperCase() + str.slice(1);
|
|
|
+}
|
|
|
+const defined = (value) => typeof value !== 'undefined';
|
|
|
+const isFunction = (value) => typeof value === 'function';
|
|
|
+const setsEqual = (a, b) => {
|
|
|
+ if (a.size !== b.size) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ for (const item of a) {
|
|
|
+ if (!b.has(item)) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+};
|
|
|
+
|
|
|
+const overrides = Object.create(null);
|
|
|
+const descriptors = Object.create(null);
|
|
|
+function getScope$1(node, key) {
|
|
|
+ if (!key) {
|
|
|
+ return node;
|
|
|
+ }
|
|
|
+ const keys = key.split('.');
|
|
|
+ for (let i = 0, n = keys.length; i < n; ++i) {
|
|
|
+ const k = keys[i];
|
|
|
+ node = node[k] || (node[k] = Object.create(null));
|
|
|
+ }
|
|
|
+ return node;
|
|
|
+}
|
|
|
+function set(root, scope, values) {
|
|
|
+ if (typeof scope === 'string') {
|
|
|
+ return merge(getScope$1(root, scope), values);
|
|
|
+ }
|
|
|
+ return merge(getScope$1(root, ''), scope);
|
|
|
+}
|
|
|
+class Defaults {
|
|
|
+ constructor(_descriptors) {
|
|
|
+ this.animation = undefined;
|
|
|
+ this.backgroundColor = 'rgba(0,0,0,0.1)';
|
|
|
+ this.borderColor = 'rgba(0,0,0,0.1)';
|
|
|
+ this.color = '#666';
|
|
|
+ this.datasets = {};
|
|
|
+ this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio();
|
|
|
+ this.elements = {};
|
|
|
+ this.events = [
|
|
|
+ 'mousemove',
|
|
|
+ 'mouseout',
|
|
|
+ 'click',
|
|
|
+ 'touchstart',
|
|
|
+ 'touchmove'
|
|
|
+ ];
|
|
|
+ this.font = {
|
|
|
+ family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
|
|
|
+ size: 12,
|
|
|
+ style: 'normal',
|
|
|
+ lineHeight: 1.2,
|
|
|
+ weight: null
|
|
|
+ };
|
|
|
+ this.hover = {};
|
|
|
+ this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor);
|
|
|
+ this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor);
|
|
|
+ this.hoverColor = (ctx, options) => getHoverColor(options.color);
|
|
|
+ this.indexAxis = 'x';
|
|
|
+ this.interaction = {
|
|
|
+ mode: 'nearest',
|
|
|
+ intersect: true
|
|
|
+ };
|
|
|
+ this.maintainAspectRatio = true;
|
|
|
+ this.onHover = null;
|
|
|
+ this.onClick = null;
|
|
|
+ this.parsing = true;
|
|
|
+ this.plugins = {};
|
|
|
+ this.responsive = true;
|
|
|
+ this.scale = undefined;
|
|
|
+ this.scales = {};
|
|
|
+ this.showLine = true;
|
|
|
+ this.describe(_descriptors);
|
|
|
+ }
|
|
|
+ set(scope, values) {
|
|
|
+ return set(this, scope, values);
|
|
|
+ }
|
|
|
+ get(scope) {
|
|
|
+ return getScope$1(this, scope);
|
|
|
+ }
|
|
|
+ describe(scope, values) {
|
|
|
+ return set(descriptors, scope, values);
|
|
|
+ }
|
|
|
+ override(scope, values) {
|
|
|
+ return set(overrides, scope, values);
|
|
|
+ }
|
|
|
+ route(scope, name, targetScope, targetName) {
|
|
|
+ const scopeObject = getScope$1(this, scope);
|
|
|
+ const targetScopeObject = getScope$1(this, targetScope);
|
|
|
+ const privateName = '_' + name;
|
|
|
+ Object.defineProperties(scopeObject, {
|
|
|
+ [privateName]: {
|
|
|
+ value: scopeObject[name],
|
|
|
+ writable: true
|
|
|
+ },
|
|
|
+ [name]: {
|
|
|
+ enumerable: true,
|
|
|
+ get() {
|
|
|
+ const local = this[privateName];
|
|
|
+ const target = targetScopeObject[targetName];
|
|
|
+ if (isObject(local)) {
|
|
|
+ return Object.assign({}, target, local);
|
|
|
+ }
|
|
|
+ return valueOrDefault(local, target);
|
|
|
+ },
|
|
|
+ set(value) {
|
|
|
+ this[privateName] = value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+}
|
|
|
+var defaults = new Defaults({
|
|
|
+ _scriptable: (name) => !name.startsWith('on'),
|
|
|
+ _indexable: (name) => name !== 'events',
|
|
|
+ hover: {
|
|
|
+ _fallback: 'interaction'
|
|
|
+ },
|
|
|
+ interaction: {
|
|
|
+ _scriptable: false,
|
|
|
+ _indexable: false,
|
|
|
+ }
|
|
|
+});
|
|
|
+
|
|
|
+const PI = Math.PI;
|
|
|
+const TAU = 2 * PI;
|
|
|
+const PITAU = TAU + PI;
|
|
|
+const INFINITY = Number.POSITIVE_INFINITY;
|
|
|
+const RAD_PER_DEG = PI / 180;
|
|
|
+const HALF_PI = PI / 2;
|
|
|
+const QUARTER_PI = PI / 4;
|
|
|
+const TWO_THIRDS_PI = PI * 2 / 3;
|
|
|
+const log10 = Math.log10;
|
|
|
+const sign = Math.sign;
|
|
|
+function niceNum(range) {
|
|
|
+ const roundedRange = Math.round(range);
|
|
|
+ range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range;
|
|
|
+ const niceRange = Math.pow(10, Math.floor(log10(range)));
|
|
|
+ const fraction = range / niceRange;
|
|
|
+ const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10;
|
|
|
+ return niceFraction * niceRange;
|
|
|
+}
|
|
|
+function _factorize(value) {
|
|
|
+ const result = [];
|
|
|
+ const sqrt = Math.sqrt(value);
|
|
|
+ let i;
|
|
|
+ for (i = 1; i < sqrt; i++) {
|
|
|
+ if (value % i === 0) {
|
|
|
+ result.push(i);
|
|
|
+ result.push(value / i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (sqrt === (sqrt | 0)) {
|
|
|
+ result.push(sqrt);
|
|
|
+ }
|
|
|
+ result.sort((a, b) => a - b).pop();
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function isNumber(n) {
|
|
|
+ return !isNaN(parseFloat(n)) && isFinite(n);
|
|
|
+}
|
|
|
+function almostEquals(x, y, epsilon) {
|
|
|
+ return Math.abs(x - y) < epsilon;
|
|
|
+}
|
|
|
+function almostWhole(x, epsilon) {
|
|
|
+ const rounded = Math.round(x);
|
|
|
+ return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x);
|
|
|
+}
|
|
|
+function _setMinAndMaxByKey(array, target, property) {
|
|
|
+ let i, ilen, value;
|
|
|
+ for (i = 0, ilen = array.length; i < ilen; i++) {
|
|
|
+ value = array[i][property];
|
|
|
+ if (!isNaN(value)) {
|
|
|
+ target.min = Math.min(target.min, value);
|
|
|
+ target.max = Math.max(target.max, value);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function toRadians(degrees) {
|
|
|
+ return degrees * (PI / 180);
|
|
|
+}
|
|
|
+function toDegrees(radians) {
|
|
|
+ return radians * (180 / PI);
|
|
|
+}
|
|
|
+function _decimalPlaces(x) {
|
|
|
+ if (!isNumberFinite(x)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ let e = 1;
|
|
|
+ let p = 0;
|
|
|
+ while (Math.round(x * e) / e !== x) {
|
|
|
+ e *= 10;
|
|
|
+ p++;
|
|
|
+ }
|
|
|
+ return p;
|
|
|
+}
|
|
|
+function getAngleFromPoint(centrePoint, anglePoint) {
|
|
|
+ const distanceFromXCenter = anglePoint.x - centrePoint.x;
|
|
|
+ const distanceFromYCenter = anglePoint.y - centrePoint.y;
|
|
|
+ const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
|
|
|
+ let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
|
|
|
+ if (angle < (-0.5 * PI)) {
|
|
|
+ angle += TAU;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ angle,
|
|
|
+ distance: radialDistanceFromCenter
|
|
|
+ };
|
|
|
+}
|
|
|
+function distanceBetweenPoints(pt1, pt2) {
|
|
|
+ return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
|
|
|
+}
|
|
|
+function _angleDiff(a, b) {
|
|
|
+ return (a - b + PITAU) % TAU - PI;
|
|
|
+}
|
|
|
+function _normalizeAngle(a) {
|
|
|
+ return (a % TAU + TAU) % TAU;
|
|
|
+}
|
|
|
+function _angleBetween(angle, start, end, sameAngleIsFullCircle) {
|
|
|
+ const a = _normalizeAngle(angle);
|
|
|
+ const s = _normalizeAngle(start);
|
|
|
+ const e = _normalizeAngle(end);
|
|
|
+ const angleToStart = _normalizeAngle(s - a);
|
|
|
+ const angleToEnd = _normalizeAngle(e - a);
|
|
|
+ const startToAngle = _normalizeAngle(a - s);
|
|
|
+ const endToAngle = _normalizeAngle(a - e);
|
|
|
+ return a === s || a === e || (sameAngleIsFullCircle && s === e)
|
|
|
+ || (angleToStart > angleToEnd && startToAngle < endToAngle);
|
|
|
+}
|
|
|
+function _limitValue(value, min, max) {
|
|
|
+ return Math.max(min, Math.min(max, value));
|
|
|
+}
|
|
|
+function _int16Range(value) {
|
|
|
+ return _limitValue(value, -32768, 32767);
|
|
|
+}
|
|
|
+
|
|
|
+function toFontString(font) {
|
|
|
+ if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ return (font.style ? font.style + ' ' : '')
|
|
|
+ + (font.weight ? font.weight + ' ' : '')
|
|
|
+ + font.size + 'px '
|
|
|
+ + font.family;
|
|
|
+}
|
|
|
+function _measureText(ctx, data, gc, longest, string) {
|
|
|
+ let textWidth = data[string];
|
|
|
+ if (!textWidth) {
|
|
|
+ textWidth = data[string] = ctx.measureText(string).width;
|
|
|
+ gc.push(string);
|
|
|
+ }
|
|
|
+ if (textWidth > longest) {
|
|
|
+ longest = textWidth;
|
|
|
+ }
|
|
|
+ return longest;
|
|
|
+}
|
|
|
+function _longestText(ctx, font, arrayOfThings, cache) {
|
|
|
+ cache = cache || {};
|
|
|
+ let data = cache.data = cache.data || {};
|
|
|
+ let gc = cache.garbageCollect = cache.garbageCollect || [];
|
|
|
+ if (cache.font !== font) {
|
|
|
+ data = cache.data = {};
|
|
|
+ gc = cache.garbageCollect = [];
|
|
|
+ cache.font = font;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ ctx.font = font;
|
|
|
+ let longest = 0;
|
|
|
+ const ilen = arrayOfThings.length;
|
|
|
+ let i, j, jlen, thing, nestedThing;
|
|
|
+ for (i = 0; i < ilen; i++) {
|
|
|
+ thing = arrayOfThings[i];
|
|
|
+ if (thing !== undefined && thing !== null && isArray(thing) !== true) {
|
|
|
+ longest = _measureText(ctx, data, gc, longest, thing);
|
|
|
+ } else if (isArray(thing)) {
|
|
|
+ for (j = 0, jlen = thing.length; j < jlen; j++) {
|
|
|
+ nestedThing = thing[j];
|
|
|
+ if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) {
|
|
|
+ longest = _measureText(ctx, data, gc, longest, nestedThing);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ctx.restore();
|
|
|
+ const gcLen = gc.length / 2;
|
|
|
+ if (gcLen > arrayOfThings.length) {
|
|
|
+ for (i = 0; i < gcLen; i++) {
|
|
|
+ delete data[gc[i]];
|
|
|
+ }
|
|
|
+ gc.splice(0, gcLen);
|
|
|
+ }
|
|
|
+ return longest;
|
|
|
+}
|
|
|
+function _alignPixel(chart, pixel, width) {
|
|
|
+ const devicePixelRatio = chart.currentDevicePixelRatio;
|
|
|
+ const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0;
|
|
|
+ return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;
|
|
|
+}
|
|
|
+function clearCanvas(canvas, ctx) {
|
|
|
+ ctx = ctx || canvas.getContext('2d');
|
|
|
+ ctx.save();
|
|
|
+ ctx.resetTransform();
|
|
|
+ ctx.clearRect(0, 0, canvas.width, canvas.height);
|
|
|
+ ctx.restore();
|
|
|
+}
|
|
|
+function drawPoint(ctx, options, x, y) {
|
|
|
+ let type, xOffset, yOffset, size, cornerRadius;
|
|
|
+ const style = options.pointStyle;
|
|
|
+ const rotation = options.rotation;
|
|
|
+ const radius = options.radius;
|
|
|
+ let rad = (rotation || 0) * RAD_PER_DEG;
|
|
|
+ if (style && typeof style === 'object') {
|
|
|
+ type = style.toString();
|
|
|
+ if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
|
|
|
+ ctx.save();
|
|
|
+ ctx.translate(x, y);
|
|
|
+ ctx.rotate(rad);
|
|
|
+ ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);
|
|
|
+ ctx.restore();
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (isNaN(radius) || radius <= 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.beginPath();
|
|
|
+ switch (style) {
|
|
|
+ default:
|
|
|
+ ctx.arc(x, y, radius, 0, TAU);
|
|
|
+ ctx.closePath();
|
|
|
+ break;
|
|
|
+ case 'triangle':
|
|
|
+ ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
|
|
|
+ rad += TWO_THIRDS_PI;
|
|
|
+ ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
|
|
|
+ rad += TWO_THIRDS_PI;
|
|
|
+ ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
|
|
|
+ ctx.closePath();
|
|
|
+ break;
|
|
|
+ case 'rectRounded':
|
|
|
+ cornerRadius = radius * 0.516;
|
|
|
+ size = radius - cornerRadius;
|
|
|
+ xOffset = Math.cos(rad + QUARTER_PI) * size;
|
|
|
+ yOffset = Math.sin(rad + QUARTER_PI) * size;
|
|
|
+ ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);
|
|
|
+ ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);
|
|
|
+ ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);
|
|
|
+ ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);
|
|
|
+ ctx.closePath();
|
|
|
+ break;
|
|
|
+ case 'rect':
|
|
|
+ if (!rotation) {
|
|
|
+ size = Math.SQRT1_2 * radius;
|
|
|
+ ctx.rect(x - size, y - size, 2 * size, 2 * size);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ rad += QUARTER_PI;
|
|
|
+ case 'rectRot':
|
|
|
+ xOffset = Math.cos(rad) * radius;
|
|
|
+ yOffset = Math.sin(rad) * radius;
|
|
|
+ ctx.moveTo(x - xOffset, y - yOffset);
|
|
|
+ ctx.lineTo(x + yOffset, y - xOffset);
|
|
|
+ ctx.lineTo(x + xOffset, y + yOffset);
|
|
|
+ ctx.lineTo(x - yOffset, y + xOffset);
|
|
|
+ ctx.closePath();
|
|
|
+ break;
|
|
|
+ case 'crossRot':
|
|
|
+ rad += QUARTER_PI;
|
|
|
+ case 'cross':
|
|
|
+ xOffset = Math.cos(rad) * radius;
|
|
|
+ yOffset = Math.sin(rad) * radius;
|
|
|
+ ctx.moveTo(x - xOffset, y - yOffset);
|
|
|
+ ctx.lineTo(x + xOffset, y + yOffset);
|
|
|
+ ctx.moveTo(x + yOffset, y - xOffset);
|
|
|
+ ctx.lineTo(x - yOffset, y + xOffset);
|
|
|
+ break;
|
|
|
+ case 'star':
|
|
|
+ xOffset = Math.cos(rad) * radius;
|
|
|
+ yOffset = Math.sin(rad) * radius;
|
|
|
+ ctx.moveTo(x - xOffset, y - yOffset);
|
|
|
+ ctx.lineTo(x + xOffset, y + yOffset);
|
|
|
+ ctx.moveTo(x + yOffset, y - xOffset);
|
|
|
+ ctx.lineTo(x - yOffset, y + xOffset);
|
|
|
+ rad += QUARTER_PI;
|
|
|
+ xOffset = Math.cos(rad) * radius;
|
|
|
+ yOffset = Math.sin(rad) * radius;
|
|
|
+ ctx.moveTo(x - xOffset, y - yOffset);
|
|
|
+ ctx.lineTo(x + xOffset, y + yOffset);
|
|
|
+ ctx.moveTo(x + yOffset, y - xOffset);
|
|
|
+ ctx.lineTo(x - yOffset, y + xOffset);
|
|
|
+ break;
|
|
|
+ case 'line':
|
|
|
+ xOffset = Math.cos(rad) * radius;
|
|
|
+ yOffset = Math.sin(rad) * radius;
|
|
|
+ ctx.moveTo(x - xOffset, y - yOffset);
|
|
|
+ ctx.lineTo(x + xOffset, y + yOffset);
|
|
|
+ break;
|
|
|
+ case 'dash':
|
|
|
+ ctx.moveTo(x, y);
|
|
|
+ ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ ctx.fill();
|
|
|
+ if (options.borderWidth > 0) {
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+}
|
|
|
+function _isPointInArea(point, area, margin) {
|
|
|
+ margin = margin || 0.5;
|
|
|
+ return !area || (point && point.x > area.left - margin && point.x < area.right + margin &&
|
|
|
+ point.y > area.top - margin && point.y < area.bottom + margin);
|
|
|
+}
|
|
|
+function clipArea(ctx, area) {
|
|
|
+ ctx.save();
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
|
|
|
+ ctx.clip();
|
|
|
+}
|
|
|
+function unclipArea(ctx) {
|
|
|
+ ctx.restore();
|
|
|
+}
|
|
|
+function _steppedLineTo(ctx, previous, target, flip, mode) {
|
|
|
+ if (!previous) {
|
|
|
+ return ctx.lineTo(target.x, target.y);
|
|
|
+ }
|
|
|
+ if (mode === 'middle') {
|
|
|
+ const midpoint = (previous.x + target.x) / 2.0;
|
|
|
+ ctx.lineTo(midpoint, previous.y);
|
|
|
+ ctx.lineTo(midpoint, target.y);
|
|
|
+ } else if (mode === 'after' !== !!flip) {
|
|
|
+ ctx.lineTo(previous.x, target.y);
|
|
|
+ } else {
|
|
|
+ ctx.lineTo(target.x, previous.y);
|
|
|
+ }
|
|
|
+ ctx.lineTo(target.x, target.y);
|
|
|
+}
|
|
|
+function _bezierCurveTo(ctx, previous, target, flip) {
|
|
|
+ if (!previous) {
|
|
|
+ return ctx.lineTo(target.x, target.y);
|
|
|
+ }
|
|
|
+ ctx.bezierCurveTo(
|
|
|
+ flip ? previous.cp1x : previous.cp2x,
|
|
|
+ flip ? previous.cp1y : previous.cp2y,
|
|
|
+ flip ? target.cp2x : target.cp1x,
|
|
|
+ flip ? target.cp2y : target.cp1y,
|
|
|
+ target.x,
|
|
|
+ target.y);
|
|
|
+}
|
|
|
+function renderText(ctx, text, x, y, font, opts = {}) {
|
|
|
+ const lines = isArray(text) ? text : [text];
|
|
|
+ const stroke = opts.strokeWidth > 0 && opts.strokeColor !== '';
|
|
|
+ let i, line;
|
|
|
+ ctx.save();
|
|
|
+ ctx.font = font.string;
|
|
|
+ setRenderOpts(ctx, opts);
|
|
|
+ for (i = 0; i < lines.length; ++i) {
|
|
|
+ line = lines[i];
|
|
|
+ if (stroke) {
|
|
|
+ if (opts.strokeColor) {
|
|
|
+ ctx.strokeStyle = opts.strokeColor;
|
|
|
+ }
|
|
|
+ if (!isNullOrUndef(opts.strokeWidth)) {
|
|
|
+ ctx.lineWidth = opts.strokeWidth;
|
|
|
+ }
|
|
|
+ ctx.strokeText(line, x, y, opts.maxWidth);
|
|
|
+ }
|
|
|
+ ctx.fillText(line, x, y, opts.maxWidth);
|
|
|
+ decorateText(ctx, x, y, line, opts);
|
|
|
+ y += font.lineHeight;
|
|
|
+ }
|
|
|
+ ctx.restore();
|
|
|
+}
|
|
|
+function setRenderOpts(ctx, opts) {
|
|
|
+ if (opts.translation) {
|
|
|
+ ctx.translate(opts.translation[0], opts.translation[1]);
|
|
|
+ }
|
|
|
+ if (!isNullOrUndef(opts.rotation)) {
|
|
|
+ ctx.rotate(opts.rotation);
|
|
|
+ }
|
|
|
+ if (opts.color) {
|
|
|
+ ctx.fillStyle = opts.color;
|
|
|
+ }
|
|
|
+ if (opts.textAlign) {
|
|
|
+ ctx.textAlign = opts.textAlign;
|
|
|
+ }
|
|
|
+ if (opts.textBaseline) {
|
|
|
+ ctx.textBaseline = opts.textBaseline;
|
|
|
+ }
|
|
|
+}
|
|
|
+function decorateText(ctx, x, y, line, opts) {
|
|
|
+ if (opts.strikethrough || opts.underline) {
|
|
|
+ const metrics = ctx.measureText(line);
|
|
|
+ const left = x - metrics.actualBoundingBoxLeft;
|
|
|
+ const right = x + metrics.actualBoundingBoxRight;
|
|
|
+ const top = y - metrics.actualBoundingBoxAscent;
|
|
|
+ const bottom = y + metrics.actualBoundingBoxDescent;
|
|
|
+ const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom;
|
|
|
+ ctx.strokeStyle = ctx.fillStyle;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.lineWidth = opts.decorationWidth || 2;
|
|
|
+ ctx.moveTo(left, yDecoration);
|
|
|
+ ctx.lineTo(right, yDecoration);
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+}
|
|
|
+function addRoundedRectPath(ctx, rect) {
|
|
|
+ const {x, y, w, h, radius} = rect;
|
|
|
+ ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true);
|
|
|
+ ctx.lineTo(x, y + h - radius.bottomLeft);
|
|
|
+ ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true);
|
|
|
+ ctx.lineTo(x + w - radius.bottomRight, y + h);
|
|
|
+ ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true);
|
|
|
+ ctx.lineTo(x + w, y + radius.topRight);
|
|
|
+ ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true);
|
|
|
+ ctx.lineTo(x + radius.topLeft, y);
|
|
|
+}
|
|
|
+
|
|
|
+function _lookup(table, value, cmp) {
|
|
|
+ cmp = cmp || ((index) => table[index] < value);
|
|
|
+ let hi = table.length - 1;
|
|
|
+ let lo = 0;
|
|
|
+ let mid;
|
|
|
+ while (hi - lo > 1) {
|
|
|
+ mid = (lo + hi) >> 1;
|
|
|
+ if (cmp(mid)) {
|
|
|
+ lo = mid;
|
|
|
+ } else {
|
|
|
+ hi = mid;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {lo, hi};
|
|
|
+}
|
|
|
+const _lookupByKey = (table, key, value) =>
|
|
|
+ _lookup(table, value, index => table[index][key] < value);
|
|
|
+const _rlookupByKey = (table, key, value) =>
|
|
|
+ _lookup(table, value, index => table[index][key] >= value);
|
|
|
+function _filterBetween(values, min, max) {
|
|
|
+ let start = 0;
|
|
|
+ let end = values.length;
|
|
|
+ while (start < end && values[start] < min) {
|
|
|
+ start++;
|
|
|
+ }
|
|
|
+ while (end > start && values[end - 1] > max) {
|
|
|
+ end--;
|
|
|
+ }
|
|
|
+ return start > 0 || end < values.length
|
|
|
+ ? values.slice(start, end)
|
|
|
+ : values;
|
|
|
+}
|
|
|
+const arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];
|
|
|
+function listenArrayEvents(array, listener) {
|
|
|
+ if (array._chartjs) {
|
|
|
+ array._chartjs.listeners.push(listener);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ Object.defineProperty(array, '_chartjs', {
|
|
|
+ configurable: true,
|
|
|
+ enumerable: false,
|
|
|
+ value: {
|
|
|
+ listeners: [listener]
|
|
|
+ }
|
|
|
+ });
|
|
|
+ arrayEvents.forEach((key) => {
|
|
|
+ const method = '_onData' + _capitalize(key);
|
|
|
+ const base = array[key];
|
|
|
+ Object.defineProperty(array, key, {
|
|
|
+ configurable: true,
|
|
|
+ enumerable: false,
|
|
|
+ value(...args) {
|
|
|
+ const res = base.apply(this, args);
|
|
|
+ array._chartjs.listeners.forEach((object) => {
|
|
|
+ if (typeof object[method] === 'function') {
|
|
|
+ object[method](...args);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return res;
|
|
|
+ }
|
|
|
+ });
|
|
|
+ });
|
|
|
+}
|
|
|
+function unlistenArrayEvents(array, listener) {
|
|
|
+ const stub = array._chartjs;
|
|
|
+ if (!stub) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const listeners = stub.listeners;
|
|
|
+ const index = listeners.indexOf(listener);
|
|
|
+ if (index !== -1) {
|
|
|
+ listeners.splice(index, 1);
|
|
|
+ }
|
|
|
+ if (listeners.length > 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ arrayEvents.forEach((key) => {
|
|
|
+ delete array[key];
|
|
|
+ });
|
|
|
+ delete array._chartjs;
|
|
|
+}
|
|
|
+function _arrayUnique(items) {
|
|
|
+ const set = new Set();
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = items.length; i < ilen; ++i) {
|
|
|
+ set.add(items[i]);
|
|
|
+ }
|
|
|
+ if (set.size === ilen) {
|
|
|
+ return items;
|
|
|
+ }
|
|
|
+ return Array.from(set);
|
|
|
+}
|
|
|
+
|
|
|
+function _isDomSupported() {
|
|
|
+ return typeof window !== 'undefined' && typeof document !== 'undefined';
|
|
|
+}
|
|
|
+function _getParentNode(domNode) {
|
|
|
+ let parent = domNode.parentNode;
|
|
|
+ if (parent && parent.toString() === '[object ShadowRoot]') {
|
|
|
+ parent = parent.host;
|
|
|
+ }
|
|
|
+ return parent;
|
|
|
+}
|
|
|
+function parseMaxStyle(styleValue, node, parentProperty) {
|
|
|
+ let valueInPixels;
|
|
|
+ if (typeof styleValue === 'string') {
|
|
|
+ valueInPixels = parseInt(styleValue, 10);
|
|
|
+ if (styleValue.indexOf('%') !== -1) {
|
|
|
+ valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ valueInPixels = styleValue;
|
|
|
+ }
|
|
|
+ return valueInPixels;
|
|
|
+}
|
|
|
+const getComputedStyle = (element) => window.getComputedStyle(element, null);
|
|
|
+function getStyle(el, property) {
|
|
|
+ return getComputedStyle(el).getPropertyValue(property);
|
|
|
+}
|
|
|
+const positions = ['top', 'right', 'bottom', 'left'];
|
|
|
+function getPositionedStyle(styles, style, suffix) {
|
|
|
+ const result = {};
|
|
|
+ suffix = suffix ? '-' + suffix : '';
|
|
|
+ for (let i = 0; i < 4; i++) {
|
|
|
+ const pos = positions[i];
|
|
|
+ result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0;
|
|
|
+ }
|
|
|
+ result.width = result.left + result.right;
|
|
|
+ result.height = result.top + result.bottom;
|
|
|
+ return result;
|
|
|
+}
|
|
|
+const useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot);
|
|
|
+function getCanvasPosition(evt, canvas) {
|
|
|
+ const e = evt.native || evt;
|
|
|
+ const touches = e.touches;
|
|
|
+ const source = touches && touches.length ? touches[0] : e;
|
|
|
+ const {offsetX, offsetY} = source;
|
|
|
+ let box = false;
|
|
|
+ let x, y;
|
|
|
+ if (useOffsetPos(offsetX, offsetY, e.target)) {
|
|
|
+ x = offsetX;
|
|
|
+ y = offsetY;
|
|
|
+ } else {
|
|
|
+ const rect = canvas.getBoundingClientRect();
|
|
|
+ x = source.clientX - rect.left;
|
|
|
+ y = source.clientY - rect.top;
|
|
|
+ box = true;
|
|
|
+ }
|
|
|
+ return {x, y, box};
|
|
|
+}
|
|
|
+function getRelativePosition$1(evt, chart) {
|
|
|
+ const {canvas, currentDevicePixelRatio} = chart;
|
|
|
+ const style = getComputedStyle(canvas);
|
|
|
+ const borderBox = style.boxSizing === 'border-box';
|
|
|
+ const paddings = getPositionedStyle(style, 'padding');
|
|
|
+ const borders = getPositionedStyle(style, 'border', 'width');
|
|
|
+ const {x, y, box} = getCanvasPosition(evt, canvas);
|
|
|
+ const xOffset = paddings.left + (box && borders.left);
|
|
|
+ const yOffset = paddings.top + (box && borders.top);
|
|
|
+ let {width, height} = chart;
|
|
|
+ if (borderBox) {
|
|
|
+ width -= paddings.width + borders.width;
|
|
|
+ height -= paddings.height + borders.height;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio),
|
|
|
+ y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio)
|
|
|
+ };
|
|
|
+}
|
|
|
+function getContainerSize(canvas, width, height) {
|
|
|
+ let maxWidth, maxHeight;
|
|
|
+ if (width === undefined || height === undefined) {
|
|
|
+ const container = _getParentNode(canvas);
|
|
|
+ if (!container) {
|
|
|
+ width = canvas.clientWidth;
|
|
|
+ height = canvas.clientHeight;
|
|
|
+ } else {
|
|
|
+ const rect = container.getBoundingClientRect();
|
|
|
+ const containerStyle = getComputedStyle(container);
|
|
|
+ const containerBorder = getPositionedStyle(containerStyle, 'border', 'width');
|
|
|
+ const containerPadding = getPositionedStyle(containerStyle, 'padding');
|
|
|
+ width = rect.width - containerPadding.width - containerBorder.width;
|
|
|
+ height = rect.height - containerPadding.height - containerBorder.height;
|
|
|
+ maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth');
|
|
|
+ maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight');
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ width,
|
|
|
+ height,
|
|
|
+ maxWidth: maxWidth || INFINITY,
|
|
|
+ maxHeight: maxHeight || INFINITY
|
|
|
+ };
|
|
|
+}
|
|
|
+const round1 = v => Math.round(v * 10) / 10;
|
|
|
+function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) {
|
|
|
+ const style = getComputedStyle(canvas);
|
|
|
+ const margins = getPositionedStyle(style, 'margin');
|
|
|
+ const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY;
|
|
|
+ const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY;
|
|
|
+ const containerSize = getContainerSize(canvas, bbWidth, bbHeight);
|
|
|
+ let {width, height} = containerSize;
|
|
|
+ if (style.boxSizing === 'content-box') {
|
|
|
+ const borders = getPositionedStyle(style, 'border', 'width');
|
|
|
+ const paddings = getPositionedStyle(style, 'padding');
|
|
|
+ width -= paddings.width + borders.width;
|
|
|
+ height -= paddings.height + borders.height;
|
|
|
+ }
|
|
|
+ width = Math.max(0, width - margins.width);
|
|
|
+ height = Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height - margins.height);
|
|
|
+ width = round1(Math.min(width, maxWidth, containerSize.maxWidth));
|
|
|
+ height = round1(Math.min(height, maxHeight, containerSize.maxHeight));
|
|
|
+ if (width && !height) {
|
|
|
+ height = round1(width / 2);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ width,
|
|
|
+ height
|
|
|
+ };
|
|
|
+}
|
|
|
+function retinaScale(chart, forceRatio, forceStyle) {
|
|
|
+ const pixelRatio = forceRatio || 1;
|
|
|
+ const deviceHeight = Math.floor(chart.height * pixelRatio);
|
|
|
+ const deviceWidth = Math.floor(chart.width * pixelRatio);
|
|
|
+ chart.height = deviceHeight / pixelRatio;
|
|
|
+ chart.width = deviceWidth / pixelRatio;
|
|
|
+ const canvas = chart.canvas;
|
|
|
+ if (canvas.style && (forceStyle || (!canvas.style.height && !canvas.style.width))) {
|
|
|
+ canvas.style.height = `${chart.height}px`;
|
|
|
+ canvas.style.width = `${chart.width}px`;
|
|
|
+ }
|
|
|
+ if (chart.currentDevicePixelRatio !== pixelRatio
|
|
|
+ || canvas.height !== deviceHeight
|
|
|
+ || canvas.width !== deviceWidth) {
|
|
|
+ chart.currentDevicePixelRatio = pixelRatio;
|
|
|
+ canvas.height = deviceHeight;
|
|
|
+ canvas.width = deviceWidth;
|
|
|
+ chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+const supportsEventListenerOptions = (function() {
|
|
|
+ let passiveSupported = false;
|
|
|
+ try {
|
|
|
+ const options = {
|
|
|
+ get passive() {
|
|
|
+ passiveSupported = true;
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ };
|
|
|
+ window.addEventListener('test', null, options);
|
|
|
+ window.removeEventListener('test', null, options);
|
|
|
+ } catch (e) {
|
|
|
+ }
|
|
|
+ return passiveSupported;
|
|
|
+}());
|
|
|
+function readUsedSize(element, property) {
|
|
|
+ const value = getStyle(element, property);
|
|
|
+ const matches = value && value.match(/^(\d+)(\.\d+)?px$/);
|
|
|
+ return matches ? +matches[1] : undefined;
|
|
|
+}
|
|
|
+
|
|
|
+function getRelativePosition(e, chart) {
|
|
|
+ if ('native' in e) {
|
|
|
+ return {
|
|
|
+ x: e.x,
|
|
|
+ y: e.y
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return getRelativePosition$1(e, chart);
|
|
|
+}
|
|
|
+function evaluateAllVisibleItems(chart, handler) {
|
|
|
+ const metasets = chart.getSortedVisibleDatasetMetas();
|
|
|
+ let index, data, element;
|
|
|
+ for (let i = 0, ilen = metasets.length; i < ilen; ++i) {
|
|
|
+ ({index, data} = metasets[i]);
|
|
|
+ for (let j = 0, jlen = data.length; j < jlen; ++j) {
|
|
|
+ element = data[j];
|
|
|
+ if (!element.skip) {
|
|
|
+ handler(element, index, j);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function binarySearch(metaset, axis, value, intersect) {
|
|
|
+ const {controller, data, _sorted} = metaset;
|
|
|
+ const iScale = controller._cachedMeta.iScale;
|
|
|
+ if (iScale && axis === iScale.axis && _sorted && data.length) {
|
|
|
+ const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey;
|
|
|
+ if (!intersect) {
|
|
|
+ return lookupMethod(data, axis, value);
|
|
|
+ } else if (controller._sharedOptions) {
|
|
|
+ const el = data[0];
|
|
|
+ const range = typeof el.getRange === 'function' && el.getRange(axis);
|
|
|
+ if (range) {
|
|
|
+ const start = lookupMethod(data, axis, value - range);
|
|
|
+ const end = lookupMethod(data, axis, value + range);
|
|
|
+ return {lo: start.lo, hi: end.hi};
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {lo: 0, hi: data.length - 1};
|
|
|
+}
|
|
|
+function optimizedEvaluateItems(chart, axis, position, handler, intersect) {
|
|
|
+ const metasets = chart.getSortedVisibleDatasetMetas();
|
|
|
+ const value = position[axis];
|
|
|
+ for (let i = 0, ilen = metasets.length; i < ilen; ++i) {
|
|
|
+ const {index, data} = metasets[i];
|
|
|
+ const {lo, hi} = binarySearch(metasets[i], axis, value, intersect);
|
|
|
+ for (let j = lo; j <= hi; ++j) {
|
|
|
+ const element = data[j];
|
|
|
+ if (!element.skip) {
|
|
|
+ handler(element, index, j);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function getDistanceMetricForAxis(axis) {
|
|
|
+ const useX = axis.indexOf('x') !== -1;
|
|
|
+ const useY = axis.indexOf('y') !== -1;
|
|
|
+ return function(pt1, pt2) {
|
|
|
+ const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
|
|
|
+ const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
|
|
|
+ return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
|
|
|
+ };
|
|
|
+}
|
|
|
+function getIntersectItems(chart, position, axis, useFinalPosition) {
|
|
|
+ const items = [];
|
|
|
+ if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) {
|
|
|
+ return items;
|
|
|
+ }
|
|
|
+ const evaluationFunc = function(element, datasetIndex, index) {
|
|
|
+ if (element.inRange(position.x, position.y, useFinalPosition)) {
|
|
|
+ items.push({element, datasetIndex, index});
|
|
|
+ }
|
|
|
+ };
|
|
|
+ optimizedEvaluateItems(chart, axis, position, evaluationFunc, true);
|
|
|
+ return items;
|
|
|
+}
|
|
|
+function getNearestItems(chart, position, axis, intersect, useFinalPosition) {
|
|
|
+ const distanceMetric = getDistanceMetricForAxis(axis);
|
|
|
+ let minDistance = Number.POSITIVE_INFINITY;
|
|
|
+ let items = [];
|
|
|
+ if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) {
|
|
|
+ return items;
|
|
|
+ }
|
|
|
+ const evaluationFunc = function(element, datasetIndex, index) {
|
|
|
+ if (intersect && !element.inRange(position.x, position.y, useFinalPosition)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const center = element.getCenterPoint(useFinalPosition);
|
|
|
+ if (!_isPointInArea(center, chart.chartArea, chart._minPadding) && !element.inRange(position.x, position.y, useFinalPosition)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const distance = distanceMetric(position, center);
|
|
|
+ if (distance < minDistance) {
|
|
|
+ items = [{element, datasetIndex, index}];
|
|
|
+ minDistance = distance;
|
|
|
+ } else if (distance === minDistance) {
|
|
|
+ items.push({element, datasetIndex, index});
|
|
|
+ }
|
|
|
+ };
|
|
|
+ optimizedEvaluateItems(chart, axis, position, evaluationFunc);
|
|
|
+ return items;
|
|
|
+}
|
|
|
+function getAxisItems(chart, e, options, useFinalPosition) {
|
|
|
+ const position = getRelativePosition(e, chart);
|
|
|
+ const items = [];
|
|
|
+ const axis = options.axis;
|
|
|
+ const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange';
|
|
|
+ let intersectsItem = false;
|
|
|
+ evaluateAllVisibleItems(chart, (element, datasetIndex, index) => {
|
|
|
+ if (element[rangeMethod](position[axis], useFinalPosition)) {
|
|
|
+ items.push({element, datasetIndex, index});
|
|
|
+ }
|
|
|
+ if (element.inRange(position.x, position.y, useFinalPosition)) {
|
|
|
+ intersectsItem = true;
|
|
|
+ }
|
|
|
+ });
|
|
|
+ if (options.intersect && !intersectsItem) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ return items;
|
|
|
+}
|
|
|
+var Interaction = {
|
|
|
+ modes: {
|
|
|
+ index(chart, e, options, useFinalPosition) {
|
|
|
+ const position = getRelativePosition(e, chart);
|
|
|
+ const axis = options.axis || 'x';
|
|
|
+ const items = options.intersect
|
|
|
+ ? getIntersectItems(chart, position, axis, useFinalPosition)
|
|
|
+ : getNearestItems(chart, position, axis, false, useFinalPosition);
|
|
|
+ const elements = [];
|
|
|
+ if (!items.length) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ chart.getSortedVisibleDatasetMetas().forEach((meta) => {
|
|
|
+ const index = items[0].index;
|
|
|
+ const element = meta.data[index];
|
|
|
+ if (element && !element.skip) {
|
|
|
+ elements.push({element, datasetIndex: meta.index, index});
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return elements;
|
|
|
+ },
|
|
|
+ dataset(chart, e, options, useFinalPosition) {
|
|
|
+ const position = getRelativePosition(e, chart);
|
|
|
+ const axis = options.axis || 'xy';
|
|
|
+ let items = options.intersect
|
|
|
+ ? getIntersectItems(chart, position, axis, useFinalPosition) :
|
|
|
+ getNearestItems(chart, position, axis, false, useFinalPosition);
|
|
|
+ if (items.length > 0) {
|
|
|
+ const datasetIndex = items[0].datasetIndex;
|
|
|
+ const data = chart.getDatasetMeta(datasetIndex).data;
|
|
|
+ items = [];
|
|
|
+ for (let i = 0; i < data.length; ++i) {
|
|
|
+ items.push({element: data[i], datasetIndex, index: i});
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return items;
|
|
|
+ },
|
|
|
+ point(chart, e, options, useFinalPosition) {
|
|
|
+ const position = getRelativePosition(e, chart);
|
|
|
+ const axis = options.axis || 'xy';
|
|
|
+ return getIntersectItems(chart, position, axis, useFinalPosition);
|
|
|
+ },
|
|
|
+ nearest(chart, e, options, useFinalPosition) {
|
|
|
+ const position = getRelativePosition(e, chart);
|
|
|
+ const axis = options.axis || 'xy';
|
|
|
+ return getNearestItems(chart, position, axis, options.intersect, useFinalPosition);
|
|
|
+ },
|
|
|
+ x(chart, e, options, useFinalPosition) {
|
|
|
+ options.axis = 'x';
|
|
|
+ return getAxisItems(chart, e, options, useFinalPosition);
|
|
|
+ },
|
|
|
+ y(chart, e, options, useFinalPosition) {
|
|
|
+ options.axis = 'y';
|
|
|
+ return getAxisItems(chart, e, options, useFinalPosition);
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+const LINE_HEIGHT = new RegExp(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
|
|
|
+const FONT_STYLE = new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/);
|
|
|
+function toLineHeight(value, size) {
|
|
|
+ const matches = ('' + value).match(LINE_HEIGHT);
|
|
|
+ if (!matches || matches[1] === 'normal') {
|
|
|
+ return size * 1.2;
|
|
|
+ }
|
|
|
+ value = +matches[2];
|
|
|
+ switch (matches[3]) {
|
|
|
+ case 'px':
|
|
|
+ return value;
|
|
|
+ case '%':
|
|
|
+ value /= 100;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ return size * value;
|
|
|
+}
|
|
|
+const numberOrZero$1 = v => +v || 0;
|
|
|
+function _readValueToProps(value, props) {
|
|
|
+ const ret = {};
|
|
|
+ const objProps = isObject(props);
|
|
|
+ const keys = objProps ? Object.keys(props) : props;
|
|
|
+ const read = isObject(value)
|
|
|
+ ? objProps
|
|
|
+ ? prop => valueOrDefault(value[prop], value[props[prop]])
|
|
|
+ : prop => value[prop]
|
|
|
+ : () => value;
|
|
|
+ for (const prop of keys) {
|
|
|
+ ret[prop] = numberOrZero$1(read(prop));
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+function toTRBL(value) {
|
|
|
+ return _readValueToProps(value, {top: 'y', right: 'x', bottom: 'y', left: 'x'});
|
|
|
+}
|
|
|
+function toTRBLCorners(value) {
|
|
|
+ return _readValueToProps(value, ['topLeft', 'topRight', 'bottomLeft', 'bottomRight']);
|
|
|
+}
|
|
|
+function toPadding(value) {
|
|
|
+ const obj = toTRBL(value);
|
|
|
+ obj.width = obj.left + obj.right;
|
|
|
+ obj.height = obj.top + obj.bottom;
|
|
|
+ return obj;
|
|
|
+}
|
|
|
+function toFont(options, fallback) {
|
|
|
+ options = options || {};
|
|
|
+ fallback = fallback || defaults.font;
|
|
|
+ let size = valueOrDefault(options.size, fallback.size);
|
|
|
+ if (typeof size === 'string') {
|
|
|
+ size = parseInt(size, 10);
|
|
|
+ }
|
|
|
+ let style = valueOrDefault(options.style, fallback.style);
|
|
|
+ if (style && !('' + style).match(FONT_STYLE)) {
|
|
|
+ console.warn('Invalid font style specified: "' + style + '"');
|
|
|
+ style = '';
|
|
|
+ }
|
|
|
+ const font = {
|
|
|
+ family: valueOrDefault(options.family, fallback.family),
|
|
|
+ lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size),
|
|
|
+ size,
|
|
|
+ style,
|
|
|
+ weight: valueOrDefault(options.weight, fallback.weight),
|
|
|
+ string: ''
|
|
|
+ };
|
|
|
+ font.string = toFontString(font);
|
|
|
+ return font;
|
|
|
+}
|
|
|
+function resolve(inputs, context, index, info) {
|
|
|
+ let cacheable = true;
|
|
|
+ let i, ilen, value;
|
|
|
+ for (i = 0, ilen = inputs.length; i < ilen; ++i) {
|
|
|
+ value = inputs[i];
|
|
|
+ if (value === undefined) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (context !== undefined && typeof value === 'function') {
|
|
|
+ value = value(context);
|
|
|
+ cacheable = false;
|
|
|
+ }
|
|
|
+ if (index !== undefined && isArray(value)) {
|
|
|
+ value = value[index % value.length];
|
|
|
+ cacheable = false;
|
|
|
+ }
|
|
|
+ if (value !== undefined) {
|
|
|
+ if (info && !cacheable) {
|
|
|
+ info.cacheable = false;
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function _addGrace(minmax, grace) {
|
|
|
+ const {min, max} = minmax;
|
|
|
+ return {
|
|
|
+ min: min - Math.abs(toDimension(grace, min)),
|
|
|
+ max: max + toDimension(grace, max)
|
|
|
+ };
|
|
|
+}
|
|
|
+
|
|
|
+const STATIC_POSITIONS = ['left', 'top', 'right', 'bottom'];
|
|
|
+function filterByPosition(array, position) {
|
|
|
+ return array.filter(v => v.pos === position);
|
|
|
+}
|
|
|
+function filterDynamicPositionByAxis(array, axis) {
|
|
|
+ return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis);
|
|
|
+}
|
|
|
+function sortByWeight(array, reverse) {
|
|
|
+ return array.sort((a, b) => {
|
|
|
+ const v0 = reverse ? b : a;
|
|
|
+ const v1 = reverse ? a : b;
|
|
|
+ return v0.weight === v1.weight ?
|
|
|
+ v0.index - v1.index :
|
|
|
+ v0.weight - v1.weight;
|
|
|
+ });
|
|
|
+}
|
|
|
+function wrapBoxes(boxes) {
|
|
|
+ const layoutBoxes = [];
|
|
|
+ let i, ilen, box, pos, stack, stackWeight;
|
|
|
+ for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) {
|
|
|
+ box = boxes[i];
|
|
|
+ ({position: pos, options: {stack, stackWeight = 1}} = box);
|
|
|
+ layoutBoxes.push({
|
|
|
+ index: i,
|
|
|
+ box,
|
|
|
+ pos,
|
|
|
+ horizontal: box.isHorizontal(),
|
|
|
+ weight: box.weight,
|
|
|
+ stack: stack && (pos + stack),
|
|
|
+ stackWeight
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return layoutBoxes;
|
|
|
+}
|
|
|
+function buildStacks(layouts) {
|
|
|
+ const stacks = {};
|
|
|
+ for (const wrap of layouts) {
|
|
|
+ const {stack, pos, stackWeight} = wrap;
|
|
|
+ if (!stack || !STATIC_POSITIONS.includes(pos)) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0});
|
|
|
+ _stack.count++;
|
|
|
+ _stack.weight += stackWeight;
|
|
|
+ }
|
|
|
+ return stacks;
|
|
|
+}
|
|
|
+function setLayoutDims(layouts, params) {
|
|
|
+ const stacks = buildStacks(layouts);
|
|
|
+ const {vBoxMaxWidth, hBoxMaxHeight} = params;
|
|
|
+ let i, ilen, layout;
|
|
|
+ for (i = 0, ilen = layouts.length; i < ilen; ++i) {
|
|
|
+ layout = layouts[i];
|
|
|
+ const {fullSize} = layout.box;
|
|
|
+ const stack = stacks[layout.stack];
|
|
|
+ const factor = stack && layout.stackWeight / stack.weight;
|
|
|
+ if (layout.horizontal) {
|
|
|
+ layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth;
|
|
|
+ layout.height = hBoxMaxHeight;
|
|
|
+ } else {
|
|
|
+ layout.width = vBoxMaxWidth;
|
|
|
+ layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return stacks;
|
|
|
+}
|
|
|
+function buildLayoutBoxes(boxes) {
|
|
|
+ const layoutBoxes = wrapBoxes(boxes);
|
|
|
+ const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true);
|
|
|
+ const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true);
|
|
|
+ const right = sortByWeight(filterByPosition(layoutBoxes, 'right'));
|
|
|
+ const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true);
|
|
|
+ const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom'));
|
|
|
+ const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x');
|
|
|
+ const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y');
|
|
|
+ return {
|
|
|
+ fullSize,
|
|
|
+ leftAndTop: left.concat(top),
|
|
|
+ rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal),
|
|
|
+ chartArea: filterByPosition(layoutBoxes, 'chartArea'),
|
|
|
+ vertical: left.concat(right).concat(centerVertical),
|
|
|
+ horizontal: top.concat(bottom).concat(centerHorizontal)
|
|
|
+ };
|
|
|
+}
|
|
|
+function getCombinedMax(maxPadding, chartArea, a, b) {
|
|
|
+ return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);
|
|
|
+}
|
|
|
+function updateMaxPadding(maxPadding, boxPadding) {
|
|
|
+ maxPadding.top = Math.max(maxPadding.top, boxPadding.top);
|
|
|
+ maxPadding.left = Math.max(maxPadding.left, boxPadding.left);
|
|
|
+ maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);
|
|
|
+ maxPadding.right = Math.max(maxPadding.right, boxPadding.right);
|
|
|
+}
|
|
|
+function updateDims(chartArea, params, layout, stacks) {
|
|
|
+ const {pos, box} = layout;
|
|
|
+ const maxPadding = chartArea.maxPadding;
|
|
|
+ if (!isObject(pos)) {
|
|
|
+ if (layout.size) {
|
|
|
+ chartArea[pos] -= layout.size;
|
|
|
+ }
|
|
|
+ const stack = stacks[layout.stack] || {size: 0, count: 1};
|
|
|
+ stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width);
|
|
|
+ layout.size = stack.size / stack.count;
|
|
|
+ chartArea[pos] += layout.size;
|
|
|
+ }
|
|
|
+ if (box.getPadding) {
|
|
|
+ updateMaxPadding(maxPadding, box.getPadding());
|
|
|
+ }
|
|
|
+ const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'));
|
|
|
+ const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'));
|
|
|
+ const widthChanged = newWidth !== chartArea.w;
|
|
|
+ const heightChanged = newHeight !== chartArea.h;
|
|
|
+ chartArea.w = newWidth;
|
|
|
+ chartArea.h = newHeight;
|
|
|
+ return layout.horizontal
|
|
|
+ ? {same: widthChanged, other: heightChanged}
|
|
|
+ : {same: heightChanged, other: widthChanged};
|
|
|
+}
|
|
|
+function handleMaxPadding(chartArea) {
|
|
|
+ const maxPadding = chartArea.maxPadding;
|
|
|
+ function updatePos(pos) {
|
|
|
+ const change = Math.max(maxPadding[pos] - chartArea[pos], 0);
|
|
|
+ chartArea[pos] += change;
|
|
|
+ return change;
|
|
|
+ }
|
|
|
+ chartArea.y += updatePos('top');
|
|
|
+ chartArea.x += updatePos('left');
|
|
|
+ updatePos('right');
|
|
|
+ updatePos('bottom');
|
|
|
+}
|
|
|
+function getMargins(horizontal, chartArea) {
|
|
|
+ const maxPadding = chartArea.maxPadding;
|
|
|
+ function marginForPositions(positions) {
|
|
|
+ const margin = {left: 0, top: 0, right: 0, bottom: 0};
|
|
|
+ positions.forEach((pos) => {
|
|
|
+ margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);
|
|
|
+ });
|
|
|
+ return margin;
|
|
|
+ }
|
|
|
+ return horizontal
|
|
|
+ ? marginForPositions(['left', 'right'])
|
|
|
+ : marginForPositions(['top', 'bottom']);
|
|
|
+}
|
|
|
+function fitBoxes(boxes, chartArea, params, stacks) {
|
|
|
+ const refitBoxes = [];
|
|
|
+ let i, ilen, layout, box, refit, changed;
|
|
|
+ for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) {
|
|
|
+ layout = boxes[i];
|
|
|
+ box = layout.box;
|
|
|
+ box.update(
|
|
|
+ layout.width || chartArea.w,
|
|
|
+ layout.height || chartArea.h,
|
|
|
+ getMargins(layout.horizontal, chartArea)
|
|
|
+ );
|
|
|
+ const {same, other} = updateDims(chartArea, params, layout, stacks);
|
|
|
+ refit |= same && refitBoxes.length;
|
|
|
+ changed = changed || other;
|
|
|
+ if (!box.fullSize) {
|
|
|
+ refitBoxes.push(layout);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed;
|
|
|
+}
|
|
|
+function setBoxDims(box, left, top, width, height) {
|
|
|
+ box.top = top;
|
|
|
+ box.left = left;
|
|
|
+ box.right = left + width;
|
|
|
+ box.bottom = top + height;
|
|
|
+ box.width = width;
|
|
|
+ box.height = height;
|
|
|
+}
|
|
|
+function placeBoxes(boxes, chartArea, params, stacks) {
|
|
|
+ const userPadding = params.padding;
|
|
|
+ let {x, y} = chartArea;
|
|
|
+ for (const layout of boxes) {
|
|
|
+ const box = layout.box;
|
|
|
+ const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1};
|
|
|
+ const weight = (layout.stackWeight / stack.weight) || 1;
|
|
|
+ if (layout.horizontal) {
|
|
|
+ const width = chartArea.w * weight;
|
|
|
+ const height = stack.size || box.height;
|
|
|
+ if (defined(stack.start)) {
|
|
|
+ y = stack.start;
|
|
|
+ }
|
|
|
+ if (box.fullSize) {
|
|
|
+ setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height);
|
|
|
+ } else {
|
|
|
+ setBoxDims(box, chartArea.left + stack.placed, y, width, height);
|
|
|
+ }
|
|
|
+ stack.start = y;
|
|
|
+ stack.placed += width;
|
|
|
+ y = box.bottom;
|
|
|
+ } else {
|
|
|
+ const height = chartArea.h * weight;
|
|
|
+ const width = stack.size || box.width;
|
|
|
+ if (defined(stack.start)) {
|
|
|
+ x = stack.start;
|
|
|
+ }
|
|
|
+ if (box.fullSize) {
|
|
|
+ setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top);
|
|
|
+ } else {
|
|
|
+ setBoxDims(box, x, chartArea.top + stack.placed, width, height);
|
|
|
+ }
|
|
|
+ stack.start = x;
|
|
|
+ stack.placed += height;
|
|
|
+ x = box.right;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ chartArea.x = x;
|
|
|
+ chartArea.y = y;
|
|
|
+}
|
|
|
+defaults.set('layout', {
|
|
|
+ padding: {
|
|
|
+ top: 0,
|
|
|
+ right: 0,
|
|
|
+ bottom: 0,
|
|
|
+ left: 0
|
|
|
+ }
|
|
|
+});
|
|
|
+var layouts = {
|
|
|
+ addBox(chart, item) {
|
|
|
+ if (!chart.boxes) {
|
|
|
+ chart.boxes = [];
|
|
|
+ }
|
|
|
+ item.fullSize = item.fullSize || false;
|
|
|
+ item.position = item.position || 'top';
|
|
|
+ item.weight = item.weight || 0;
|
|
|
+ item._layers = item._layers || function() {
|
|
|
+ return [{
|
|
|
+ z: 0,
|
|
|
+ draw(chartArea) {
|
|
|
+ item.draw(chartArea);
|
|
|
+ }
|
|
|
+ }];
|
|
|
+ };
|
|
|
+ chart.boxes.push(item);
|
|
|
+ },
|
|
|
+ removeBox(chart, layoutItem) {
|
|
|
+ const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
|
|
|
+ if (index !== -1) {
|
|
|
+ chart.boxes.splice(index, 1);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ configure(chart, item, options) {
|
|
|
+ item.fullSize = options.fullSize;
|
|
|
+ item.position = options.position;
|
|
|
+ item.weight = options.weight;
|
|
|
+ },
|
|
|
+ update(chart, width, height, minPadding) {
|
|
|
+ if (!chart) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const padding = toPadding(chart.options.layout.padding);
|
|
|
+ const availableWidth = Math.max(width - padding.width, 0);
|
|
|
+ const availableHeight = Math.max(height - padding.height, 0);
|
|
|
+ const boxes = buildLayoutBoxes(chart.boxes);
|
|
|
+ const verticalBoxes = boxes.vertical;
|
|
|
+ const horizontalBoxes = boxes.horizontal;
|
|
|
+ each(chart.boxes, box => {
|
|
|
+ if (typeof box.beforeLayout === 'function') {
|
|
|
+ box.beforeLayout();
|
|
|
+ }
|
|
|
+ });
|
|
|
+ const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) =>
|
|
|
+ wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;
|
|
|
+ const params = Object.freeze({
|
|
|
+ outerWidth: width,
|
|
|
+ outerHeight: height,
|
|
|
+ padding,
|
|
|
+ availableWidth,
|
|
|
+ availableHeight,
|
|
|
+ vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,
|
|
|
+ hBoxMaxHeight: availableHeight / 2
|
|
|
+ });
|
|
|
+ const maxPadding = Object.assign({}, padding);
|
|
|
+ updateMaxPadding(maxPadding, toPadding(minPadding));
|
|
|
+ const chartArea = Object.assign({
|
|
|
+ maxPadding,
|
|
|
+ w: availableWidth,
|
|
|
+ h: availableHeight,
|
|
|
+ x: padding.left,
|
|
|
+ y: padding.top
|
|
|
+ }, padding);
|
|
|
+ const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);
|
|
|
+ fitBoxes(boxes.fullSize, chartArea, params, stacks);
|
|
|
+ fitBoxes(verticalBoxes, chartArea, params, stacks);
|
|
|
+ if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) {
|
|
|
+ fitBoxes(verticalBoxes, chartArea, params, stacks);
|
|
|
+ }
|
|
|
+ handleMaxPadding(chartArea);
|
|
|
+ placeBoxes(boxes.leftAndTop, chartArea, params, stacks);
|
|
|
+ chartArea.x += chartArea.w;
|
|
|
+ chartArea.y += chartArea.h;
|
|
|
+ placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);
|
|
|
+ chart.chartArea = {
|
|
|
+ left: chartArea.left,
|
|
|
+ top: chartArea.top,
|
|
|
+ right: chartArea.left + chartArea.w,
|
|
|
+ bottom: chartArea.top + chartArea.h,
|
|
|
+ height: chartArea.h,
|
|
|
+ width: chartArea.w,
|
|
|
+ };
|
|
|
+ each(boxes.chartArea, (layout) => {
|
|
|
+ const box = layout.box;
|
|
|
+ Object.assign(box, chart.chartArea);
|
|
|
+ box.update(chartArea.w, chartArea.h);
|
|
|
+ });
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function _createResolver(scopes, prefixes = [''], rootScopes = scopes, fallback, getTarget = () => scopes[0]) {
|
|
|
+ if (!defined(fallback)) {
|
|
|
+ fallback = _resolve('_fallback', scopes);
|
|
|
+ }
|
|
|
+ const cache = {
|
|
|
+ [Symbol.toStringTag]: 'Object',
|
|
|
+ _cacheable: true,
|
|
|
+ _scopes: scopes,
|
|
|
+ _rootScopes: rootScopes,
|
|
|
+ _fallback: fallback,
|
|
|
+ _getTarget: getTarget,
|
|
|
+ override: (scope) => _createResolver([scope, ...scopes], prefixes, rootScopes, fallback),
|
|
|
+ };
|
|
|
+ return new Proxy(cache, {
|
|
|
+ deleteProperty(target, prop) {
|
|
|
+ delete target[prop];
|
|
|
+ delete target._keys;
|
|
|
+ delete scopes[0][prop];
|
|
|
+ return true;
|
|
|
+ },
|
|
|
+ get(target, prop) {
|
|
|
+ return _cached(target, prop,
|
|
|
+ () => _resolveWithPrefixes(prop, prefixes, scopes, target));
|
|
|
+ },
|
|
|
+ getOwnPropertyDescriptor(target, prop) {
|
|
|
+ return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop);
|
|
|
+ },
|
|
|
+ getPrototypeOf() {
|
|
|
+ return Reflect.getPrototypeOf(scopes[0]);
|
|
|
+ },
|
|
|
+ has(target, prop) {
|
|
|
+ return getKeysFromAllScopes(target).includes(prop);
|
|
|
+ },
|
|
|
+ ownKeys(target) {
|
|
|
+ return getKeysFromAllScopes(target);
|
|
|
+ },
|
|
|
+ set(target, prop, value) {
|
|
|
+ const storage = target._storage || (target._storage = getTarget());
|
|
|
+ storage[prop] = value;
|
|
|
+ delete target[prop];
|
|
|
+ delete target._keys;
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ });
|
|
|
+}
|
|
|
+function _attachContext(proxy, context, subProxy, descriptorDefaults) {
|
|
|
+ const cache = {
|
|
|
+ _cacheable: false,
|
|
|
+ _proxy: proxy,
|
|
|
+ _context: context,
|
|
|
+ _subProxy: subProxy,
|
|
|
+ _stack: new Set(),
|
|
|
+ _descriptors: _descriptors(proxy, descriptorDefaults),
|
|
|
+ setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults),
|
|
|
+ override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults)
|
|
|
+ };
|
|
|
+ return new Proxy(cache, {
|
|
|
+ deleteProperty(target, prop) {
|
|
|
+ delete target[prop];
|
|
|
+ delete proxy[prop];
|
|
|
+ return true;
|
|
|
+ },
|
|
|
+ get(target, prop, receiver) {
|
|
|
+ return _cached(target, prop,
|
|
|
+ () => _resolveWithContext(target, prop, receiver));
|
|
|
+ },
|
|
|
+ getOwnPropertyDescriptor(target, prop) {
|
|
|
+ return target._descriptors.allKeys
|
|
|
+ ? Reflect.has(proxy, prop) ? {enumerable: true, configurable: true} : undefined
|
|
|
+ : Reflect.getOwnPropertyDescriptor(proxy, prop);
|
|
|
+ },
|
|
|
+ getPrototypeOf() {
|
|
|
+ return Reflect.getPrototypeOf(proxy);
|
|
|
+ },
|
|
|
+ has(target, prop) {
|
|
|
+ return Reflect.has(proxy, prop);
|
|
|
+ },
|
|
|
+ ownKeys() {
|
|
|
+ return Reflect.ownKeys(proxy);
|
|
|
+ },
|
|
|
+ set(target, prop, value) {
|
|
|
+ proxy[prop] = value;
|
|
|
+ delete target[prop];
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ });
|
|
|
+}
|
|
|
+function _descriptors(proxy, defaults = {scriptable: true, indexable: true}) {
|
|
|
+ const {_scriptable = defaults.scriptable, _indexable = defaults.indexable, _allKeys = defaults.allKeys} = proxy;
|
|
|
+ return {
|
|
|
+ allKeys: _allKeys,
|
|
|
+ scriptable: _scriptable,
|
|
|
+ indexable: _indexable,
|
|
|
+ isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable,
|
|
|
+ isIndexable: isFunction(_indexable) ? _indexable : () => _indexable
|
|
|
+ };
|
|
|
+}
|
|
|
+const readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name;
|
|
|
+const needsSubResolver = (prop, value) => isObject(value) && prop !== 'adapters';
|
|
|
+function _cached(target, prop, resolve) {
|
|
|
+ let value = target[prop];
|
|
|
+ if (defined(value)) {
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ value = resolve();
|
|
|
+ if (defined(value)) {
|
|
|
+ target[prop] = value;
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+}
|
|
|
+function _resolveWithContext(target, prop, receiver) {
|
|
|
+ const {_proxy, _context, _subProxy, _descriptors: descriptors} = target;
|
|
|
+ let value = _proxy[prop];
|
|
|
+ if (isFunction(value) && descriptors.isScriptable(prop)) {
|
|
|
+ value = _resolveScriptable(prop, value, target, receiver);
|
|
|
+ }
|
|
|
+ if (isArray(value) && value.length) {
|
|
|
+ value = _resolveArray(prop, value, target, descriptors.isIndexable);
|
|
|
+ }
|
|
|
+ if (needsSubResolver(prop, value)) {
|
|
|
+ value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors);
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+}
|
|
|
+function _resolveScriptable(prop, value, target, receiver) {
|
|
|
+ const {_proxy, _context, _subProxy, _stack} = target;
|
|
|
+ if (_stack.has(prop)) {
|
|
|
+ throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop);
|
|
|
+ }
|
|
|
+ _stack.add(prop);
|
|
|
+ value = value(_context, _subProxy || receiver);
|
|
|
+ _stack.delete(prop);
|
|
|
+ if (isObject(value)) {
|
|
|
+ value = createSubResolver(_proxy._scopes, _proxy, prop, value);
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+}
|
|
|
+function _resolveArray(prop, value, target, isIndexable) {
|
|
|
+ const {_proxy, _context, _subProxy, _descriptors: descriptors} = target;
|
|
|
+ if (defined(_context.index) && isIndexable(prop)) {
|
|
|
+ value = value[_context.index % value.length];
|
|
|
+ } else if (isObject(value[0])) {
|
|
|
+ const arr = value;
|
|
|
+ const scopes = _proxy._scopes.filter(s => s !== arr);
|
|
|
+ value = [];
|
|
|
+ for (const item of arr) {
|
|
|
+ const resolver = createSubResolver(scopes, _proxy, prop, item);
|
|
|
+ value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+}
|
|
|
+function resolveFallback(fallback, prop, value) {
|
|
|
+ return isFunction(fallback) ? fallback(prop, value) : fallback;
|
|
|
+}
|
|
|
+const getScope = (key, parent) => key === true ? parent
|
|
|
+ : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined;
|
|
|
+function addScopes(set, parentScopes, key, parentFallback) {
|
|
|
+ for (const parent of parentScopes) {
|
|
|
+ const scope = getScope(key, parent);
|
|
|
+ if (scope) {
|
|
|
+ set.add(scope);
|
|
|
+ const fallback = resolveFallback(scope._fallback, key, scope);
|
|
|
+ if (defined(fallback) && fallback !== key && fallback !== parentFallback) {
|
|
|
+ return fallback;
|
|
|
+ }
|
|
|
+ } else if (scope === false && defined(parentFallback) && key !== parentFallback) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+function createSubResolver(parentScopes, resolver, prop, value) {
|
|
|
+ const rootScopes = resolver._rootScopes;
|
|
|
+ const fallback = resolveFallback(resolver._fallback, prop, value);
|
|
|
+ const allScopes = [...parentScopes, ...rootScopes];
|
|
|
+ const set = new Set();
|
|
|
+ set.add(value);
|
|
|
+ let key = addScopesFromKey(set, allScopes, prop, fallback || prop);
|
|
|
+ if (key === null) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ if (defined(fallback) && fallback !== prop) {
|
|
|
+ key = addScopesFromKey(set, allScopes, fallback, key);
|
|
|
+ if (key === null) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return _createResolver(Array.from(set), [''], rootScopes, fallback,
|
|
|
+ () => subGetTarget(resolver, prop, value));
|
|
|
+}
|
|
|
+function addScopesFromKey(set, allScopes, key, fallback) {
|
|
|
+ while (key) {
|
|
|
+ key = addScopes(set, allScopes, key, fallback);
|
|
|
+ }
|
|
|
+ return key;
|
|
|
+}
|
|
|
+function subGetTarget(resolver, prop, value) {
|
|
|
+ const parent = resolver._getTarget();
|
|
|
+ if (!(prop in parent)) {
|
|
|
+ parent[prop] = {};
|
|
|
+ }
|
|
|
+ const target = parent[prop];
|
|
|
+ if (isArray(target) && isObject(value)) {
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ return target;
|
|
|
+}
|
|
|
+function _resolveWithPrefixes(prop, prefixes, scopes, proxy) {
|
|
|
+ let value;
|
|
|
+ for (const prefix of prefixes) {
|
|
|
+ value = _resolve(readKey(prefix, prop), scopes);
|
|
|
+ if (defined(value)) {
|
|
|
+ return needsSubResolver(prop, value)
|
|
|
+ ? createSubResolver(scopes, proxy, prop, value)
|
|
|
+ : value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function _resolve(key, scopes) {
|
|
|
+ for (const scope of scopes) {
|
|
|
+ if (!scope) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const value = scope[key];
|
|
|
+ if (defined(value)) {
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function getKeysFromAllScopes(target) {
|
|
|
+ let keys = target._keys;
|
|
|
+ if (!keys) {
|
|
|
+ keys = target._keys = resolveKeysFromAllScopes(target._scopes);
|
|
|
+ }
|
|
|
+ return keys;
|
|
|
+}
|
|
|
+function resolveKeysFromAllScopes(scopes) {
|
|
|
+ const set = new Set();
|
|
|
+ for (const scope of scopes) {
|
|
|
+ for (const key of Object.keys(scope).filter(k => !k.startsWith('_'))) {
|
|
|
+ set.add(key);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return Array.from(set);
|
|
|
+}
|
|
|
+
|
|
|
+const EPSILON = Number.EPSILON || 1e-14;
|
|
|
+const getPoint = (points, i) => i < points.length && !points[i].skip && points[i];
|
|
|
+const getValueAxis = (indexAxis) => indexAxis === 'x' ? 'y' : 'x';
|
|
|
+function splineCurve(firstPoint, middlePoint, afterPoint, t) {
|
|
|
+ const previous = firstPoint.skip ? middlePoint : firstPoint;
|
|
|
+ const current = middlePoint;
|
|
|
+ const next = afterPoint.skip ? middlePoint : afterPoint;
|
|
|
+ const d01 = distanceBetweenPoints(current, previous);
|
|
|
+ const d12 = distanceBetweenPoints(next, current);
|
|
|
+ let s01 = d01 / (d01 + d12);
|
|
|
+ let s12 = d12 / (d01 + d12);
|
|
|
+ s01 = isNaN(s01) ? 0 : s01;
|
|
|
+ s12 = isNaN(s12) ? 0 : s12;
|
|
|
+ const fa = t * s01;
|
|
|
+ const fb = t * s12;
|
|
|
+ return {
|
|
|
+ previous: {
|
|
|
+ x: current.x - fa * (next.x - previous.x),
|
|
|
+ y: current.y - fa * (next.y - previous.y)
|
|
|
+ },
|
|
|
+ next: {
|
|
|
+ x: current.x + fb * (next.x - previous.x),
|
|
|
+ y: current.y + fb * (next.y - previous.y)
|
|
|
+ }
|
|
|
+ };
|
|
|
+}
|
|
|
+function monotoneAdjust(points, deltaK, mK) {
|
|
|
+ const pointsLen = points.length;
|
|
|
+ let alphaK, betaK, tauK, squaredMagnitude, pointCurrent;
|
|
|
+ let pointAfter = getPoint(points, 0);
|
|
|
+ for (let i = 0; i < pointsLen - 1; ++i) {
|
|
|
+ pointCurrent = pointAfter;
|
|
|
+ pointAfter = getPoint(points, i + 1);
|
|
|
+ if (!pointCurrent || !pointAfter) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (almostEquals(deltaK[i], 0, EPSILON)) {
|
|
|
+ mK[i] = mK[i + 1] = 0;
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ alphaK = mK[i] / deltaK[i];
|
|
|
+ betaK = mK[i + 1] / deltaK[i];
|
|
|
+ squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
|
|
|
+ if (squaredMagnitude <= 9) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ tauK = 3 / Math.sqrt(squaredMagnitude);
|
|
|
+ mK[i] = alphaK * tauK * deltaK[i];
|
|
|
+ mK[i + 1] = betaK * tauK * deltaK[i];
|
|
|
+ }
|
|
|
+}
|
|
|
+function monotoneCompute(points, mK, indexAxis = 'x') {
|
|
|
+ const valueAxis = getValueAxis(indexAxis);
|
|
|
+ const pointsLen = points.length;
|
|
|
+ let delta, pointBefore, pointCurrent;
|
|
|
+ let pointAfter = getPoint(points, 0);
|
|
|
+ for (let i = 0; i < pointsLen; ++i) {
|
|
|
+ pointBefore = pointCurrent;
|
|
|
+ pointCurrent = pointAfter;
|
|
|
+ pointAfter = getPoint(points, i + 1);
|
|
|
+ if (!pointCurrent) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const iPixel = pointCurrent[indexAxis];
|
|
|
+ const vPixel = pointCurrent[valueAxis];
|
|
|
+ if (pointBefore) {
|
|
|
+ delta = (iPixel - pointBefore[indexAxis]) / 3;
|
|
|
+ pointCurrent[`cp1${indexAxis}`] = iPixel - delta;
|
|
|
+ pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i];
|
|
|
+ }
|
|
|
+ if (pointAfter) {
|
|
|
+ delta = (pointAfter[indexAxis] - iPixel) / 3;
|
|
|
+ pointCurrent[`cp2${indexAxis}`] = iPixel + delta;
|
|
|
+ pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function splineCurveMonotone(points, indexAxis = 'x') {
|
|
|
+ const valueAxis = getValueAxis(indexAxis);
|
|
|
+ const pointsLen = points.length;
|
|
|
+ const deltaK = Array(pointsLen).fill(0);
|
|
|
+ const mK = Array(pointsLen);
|
|
|
+ let i, pointBefore, pointCurrent;
|
|
|
+ let pointAfter = getPoint(points, 0);
|
|
|
+ for (i = 0; i < pointsLen; ++i) {
|
|
|
+ pointBefore = pointCurrent;
|
|
|
+ pointCurrent = pointAfter;
|
|
|
+ pointAfter = getPoint(points, i + 1);
|
|
|
+ if (!pointCurrent) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (pointAfter) {
|
|
|
+ const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis];
|
|
|
+ deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0;
|
|
|
+ }
|
|
|
+ mK[i] = !pointBefore ? deltaK[i]
|
|
|
+ : !pointAfter ? deltaK[i - 1]
|
|
|
+ : (sign(deltaK[i - 1]) !== sign(deltaK[i])) ? 0
|
|
|
+ : (deltaK[i - 1] + deltaK[i]) / 2;
|
|
|
+ }
|
|
|
+ monotoneAdjust(points, deltaK, mK);
|
|
|
+ monotoneCompute(points, mK, indexAxis);
|
|
|
+}
|
|
|
+function capControlPoint(pt, min, max) {
|
|
|
+ return Math.max(Math.min(pt, max), min);
|
|
|
+}
|
|
|
+function capBezierPoints(points, area) {
|
|
|
+ let i, ilen, point, inArea, inAreaPrev;
|
|
|
+ let inAreaNext = _isPointInArea(points[0], area);
|
|
|
+ for (i = 0, ilen = points.length; i < ilen; ++i) {
|
|
|
+ inAreaPrev = inArea;
|
|
|
+ inArea = inAreaNext;
|
|
|
+ inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area);
|
|
|
+ if (!inArea) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ point = points[i];
|
|
|
+ if (inAreaPrev) {
|
|
|
+ point.cp1x = capControlPoint(point.cp1x, area.left, area.right);
|
|
|
+ point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom);
|
|
|
+ }
|
|
|
+ if (inAreaNext) {
|
|
|
+ point.cp2x = capControlPoint(point.cp2x, area.left, area.right);
|
|
|
+ point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function _updateBezierControlPoints(points, options, area, loop, indexAxis) {
|
|
|
+ let i, ilen, point, controlPoints;
|
|
|
+ if (options.spanGaps) {
|
|
|
+ points = points.filter((pt) => !pt.skip);
|
|
|
+ }
|
|
|
+ if (options.cubicInterpolationMode === 'monotone') {
|
|
|
+ splineCurveMonotone(points, indexAxis);
|
|
|
+ } else {
|
|
|
+ let prev = loop ? points[points.length - 1] : points[0];
|
|
|
+ for (i = 0, ilen = points.length; i < ilen; ++i) {
|
|
|
+ point = points[i];
|
|
|
+ controlPoints = splineCurve(
|
|
|
+ prev,
|
|
|
+ point,
|
|
|
+ points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen],
|
|
|
+ options.tension
|
|
|
+ );
|
|
|
+ point.cp1x = controlPoints.previous.x;
|
|
|
+ point.cp1y = controlPoints.previous.y;
|
|
|
+ point.cp2x = controlPoints.next.x;
|
|
|
+ point.cp2y = controlPoints.next.y;
|
|
|
+ prev = point;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (options.capBezierPoints) {
|
|
|
+ capBezierPoints(points, area);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+const atEdge = (t) => t === 0 || t === 1;
|
|
|
+const elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p));
|
|
|
+const elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1;
|
|
|
+const effects = {
|
|
|
+ linear: t => t,
|
|
|
+ easeInQuad: t => t * t,
|
|
|
+ easeOutQuad: t => -t * (t - 2),
|
|
|
+ easeInOutQuad: t => ((t /= 0.5) < 1)
|
|
|
+ ? 0.5 * t * t
|
|
|
+ : -0.5 * ((--t) * (t - 2) - 1),
|
|
|
+ easeInCubic: t => t * t * t,
|
|
|
+ easeOutCubic: t => (t -= 1) * t * t + 1,
|
|
|
+ easeInOutCubic: t => ((t /= 0.5) < 1)
|
|
|
+ ? 0.5 * t * t * t
|
|
|
+ : 0.5 * ((t -= 2) * t * t + 2),
|
|
|
+ easeInQuart: t => t * t * t * t,
|
|
|
+ easeOutQuart: t => -((t -= 1) * t * t * t - 1),
|
|
|
+ easeInOutQuart: t => ((t /= 0.5) < 1)
|
|
|
+ ? 0.5 * t * t * t * t
|
|
|
+ : -0.5 * ((t -= 2) * t * t * t - 2),
|
|
|
+ easeInQuint: t => t * t * t * t * t,
|
|
|
+ easeOutQuint: t => (t -= 1) * t * t * t * t + 1,
|
|
|
+ easeInOutQuint: t => ((t /= 0.5) < 1)
|
|
|
+ ? 0.5 * t * t * t * t * t
|
|
|
+ : 0.5 * ((t -= 2) * t * t * t * t + 2),
|
|
|
+ easeInSine: t => -Math.cos(t * HALF_PI) + 1,
|
|
|
+ easeOutSine: t => Math.sin(t * HALF_PI),
|
|
|
+ easeInOutSine: t => -0.5 * (Math.cos(PI * t) - 1),
|
|
|
+ easeInExpo: t => (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)),
|
|
|
+ easeOutExpo: t => (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1,
|
|
|
+ easeInOutExpo: t => atEdge(t) ? t : t < 0.5
|
|
|
+ ? 0.5 * Math.pow(2, 10 * (t * 2 - 1))
|
|
|
+ : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2),
|
|
|
+ easeInCirc: t => (t >= 1) ? t : -(Math.sqrt(1 - t * t) - 1),
|
|
|
+ easeOutCirc: t => Math.sqrt(1 - (t -= 1) * t),
|
|
|
+ easeInOutCirc: t => ((t /= 0.5) < 1)
|
|
|
+ ? -0.5 * (Math.sqrt(1 - t * t) - 1)
|
|
|
+ : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1),
|
|
|
+ easeInElastic: t => atEdge(t) ? t : elasticIn(t, 0.075, 0.3),
|
|
|
+ easeOutElastic: t => atEdge(t) ? t : elasticOut(t, 0.075, 0.3),
|
|
|
+ easeInOutElastic(t) {
|
|
|
+ const s = 0.1125;
|
|
|
+ const p = 0.45;
|
|
|
+ return atEdge(t) ? t :
|
|
|
+ t < 0.5
|
|
|
+ ? 0.5 * elasticIn(t * 2, s, p)
|
|
|
+ : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p);
|
|
|
+ },
|
|
|
+ easeInBack(t) {
|
|
|
+ const s = 1.70158;
|
|
|
+ return t * t * ((s + 1) * t - s);
|
|
|
+ },
|
|
|
+ easeOutBack(t) {
|
|
|
+ const s = 1.70158;
|
|
|
+ return (t -= 1) * t * ((s + 1) * t + s) + 1;
|
|
|
+ },
|
|
|
+ easeInOutBack(t) {
|
|
|
+ let s = 1.70158;
|
|
|
+ if ((t /= 0.5) < 1) {
|
|
|
+ return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
|
|
|
+ }
|
|
|
+ return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
|
|
|
+ },
|
|
|
+ easeInBounce: t => 1 - effects.easeOutBounce(1 - t),
|
|
|
+ easeOutBounce(t) {
|
|
|
+ const m = 7.5625;
|
|
|
+ const d = 2.75;
|
|
|
+ if (t < (1 / d)) {
|
|
|
+ return m * t * t;
|
|
|
+ }
|
|
|
+ if (t < (2 / d)) {
|
|
|
+ return m * (t -= (1.5 / d)) * t + 0.75;
|
|
|
+ }
|
|
|
+ if (t < (2.5 / d)) {
|
|
|
+ return m * (t -= (2.25 / d)) * t + 0.9375;
|
|
|
+ }
|
|
|
+ return m * (t -= (2.625 / d)) * t + 0.984375;
|
|
|
+ },
|
|
|
+ easeInOutBounce: t => (t < 0.5)
|
|
|
+ ? effects.easeInBounce(t * 2) * 0.5
|
|
|
+ : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5,
|
|
|
+};
|
|
|
+
|
|
|
+function _pointInLine(p1, p2, t, mode) {
|
|
|
+ return {
|
|
|
+ x: p1.x + t * (p2.x - p1.x),
|
|
|
+ y: p1.y + t * (p2.y - p1.y)
|
|
|
+ };
|
|
|
+}
|
|
|
+function _steppedInterpolation(p1, p2, t, mode) {
|
|
|
+ return {
|
|
|
+ x: p1.x + t * (p2.x - p1.x),
|
|
|
+ y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y
|
|
|
+ : mode === 'after' ? t < 1 ? p1.y : p2.y
|
|
|
+ : t > 0 ? p2.y : p1.y
|
|
|
+ };
|
|
|
+}
|
|
|
+function _bezierInterpolation(p1, p2, t, mode) {
|
|
|
+ const cp1 = {x: p1.cp2x, y: p1.cp2y};
|
|
|
+ const cp2 = {x: p2.cp1x, y: p2.cp1y};
|
|
|
+ const a = _pointInLine(p1, cp1, t);
|
|
|
+ const b = _pointInLine(cp1, cp2, t);
|
|
|
+ const c = _pointInLine(cp2, p2, t);
|
|
|
+ const d = _pointInLine(a, b, t);
|
|
|
+ const e = _pointInLine(b, c, t);
|
|
|
+ return _pointInLine(d, e, t);
|
|
|
+}
|
|
|
+
|
|
|
+const intlCache = new Map();
|
|
|
+function getNumberFormat(locale, options) {
|
|
|
+ options = options || {};
|
|
|
+ const cacheKey = locale + JSON.stringify(options);
|
|
|
+ let formatter = intlCache.get(cacheKey);
|
|
|
+ if (!formatter) {
|
|
|
+ formatter = new Intl.NumberFormat(locale, options);
|
|
|
+ intlCache.set(cacheKey, formatter);
|
|
|
+ }
|
|
|
+ return formatter;
|
|
|
+}
|
|
|
+function formatNumber(num, locale, options) {
|
|
|
+ return getNumberFormat(locale, options).format(num);
|
|
|
+}
|
|
|
+
|
|
|
+const getRightToLeftAdapter = function(rectX, width) {
|
|
|
+ return {
|
|
|
+ x(x) {
|
|
|
+ return rectX + rectX + width - x;
|
|
|
+ },
|
|
|
+ setWidth(w) {
|
|
|
+ width = w;
|
|
|
+ },
|
|
|
+ textAlign(align) {
|
|
|
+ if (align === 'center') {
|
|
|
+ return align;
|
|
|
+ }
|
|
|
+ return align === 'right' ? 'left' : 'right';
|
|
|
+ },
|
|
|
+ xPlus(x, value) {
|
|
|
+ return x - value;
|
|
|
+ },
|
|
|
+ leftForLtr(x, itemWidth) {
|
|
|
+ return x - itemWidth;
|
|
|
+ },
|
|
|
+ };
|
|
|
+};
|
|
|
+const getLeftToRightAdapter = function() {
|
|
|
+ return {
|
|
|
+ x(x) {
|
|
|
+ return x;
|
|
|
+ },
|
|
|
+ setWidth(w) {
|
|
|
+ },
|
|
|
+ textAlign(align) {
|
|
|
+ return align;
|
|
|
+ },
|
|
|
+ xPlus(x, value) {
|
|
|
+ return x + value;
|
|
|
+ },
|
|
|
+ leftForLtr(x, _itemWidth) {
|
|
|
+ return x;
|
|
|
+ },
|
|
|
+ };
|
|
|
+};
|
|
|
+function getRtlAdapter(rtl, rectX, width) {
|
|
|
+ return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();
|
|
|
+}
|
|
|
+function overrideTextDirection(ctx, direction) {
|
|
|
+ let style, original;
|
|
|
+ if (direction === 'ltr' || direction === 'rtl') {
|
|
|
+ style = ctx.canvas.style;
|
|
|
+ original = [
|
|
|
+ style.getPropertyValue('direction'),
|
|
|
+ style.getPropertyPriority('direction'),
|
|
|
+ ];
|
|
|
+ style.setProperty('direction', direction, 'important');
|
|
|
+ ctx.prevTextDirection = original;
|
|
|
+ }
|
|
|
+}
|
|
|
+function restoreTextDirection(ctx, original) {
|
|
|
+ if (original !== undefined) {
|
|
|
+ delete ctx.prevTextDirection;
|
|
|
+ ctx.canvas.style.setProperty('direction', original[0], original[1]);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+function propertyFn(property) {
|
|
|
+ if (property === 'angle') {
|
|
|
+ return {
|
|
|
+ between: _angleBetween,
|
|
|
+ compare: _angleDiff,
|
|
|
+ normalize: _normalizeAngle,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ between: (n, s, e) => n >= Math.min(s, e) && n <= Math.max(e, s),
|
|
|
+ compare: (a, b) => a - b,
|
|
|
+ normalize: x => x
|
|
|
+ };
|
|
|
+}
|
|
|
+function normalizeSegment({start, end, count, loop, style}) {
|
|
|
+ return {
|
|
|
+ start: start % count,
|
|
|
+ end: end % count,
|
|
|
+ loop: loop && (end - start + 1) % count === 0,
|
|
|
+ style
|
|
|
+ };
|
|
|
+}
|
|
|
+function getSegment(segment, points, bounds) {
|
|
|
+ const {property, start: startBound, end: endBound} = bounds;
|
|
|
+ const {between, normalize} = propertyFn(property);
|
|
|
+ const count = points.length;
|
|
|
+ let {start, end, loop} = segment;
|
|
|
+ let i, ilen;
|
|
|
+ if (loop) {
|
|
|
+ start += count;
|
|
|
+ end += count;
|
|
|
+ for (i = 0, ilen = count; i < ilen; ++i) {
|
|
|
+ if (!between(normalize(points[start % count][property]), startBound, endBound)) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ start--;
|
|
|
+ end--;
|
|
|
+ }
|
|
|
+ start %= count;
|
|
|
+ end %= count;
|
|
|
+ }
|
|
|
+ if (end < start) {
|
|
|
+ end += count;
|
|
|
+ }
|
|
|
+ return {start, end, loop, style: segment.style};
|
|
|
+}
|
|
|
+function _boundSegment(segment, points, bounds) {
|
|
|
+ if (!bounds) {
|
|
|
+ return [segment];
|
|
|
+ }
|
|
|
+ const {property, start: startBound, end: endBound} = bounds;
|
|
|
+ const count = points.length;
|
|
|
+ const {compare, between, normalize} = propertyFn(property);
|
|
|
+ const {start, end, loop, style} = getSegment(segment, points, bounds);
|
|
|
+ const result = [];
|
|
|
+ let inside = false;
|
|
|
+ let subStart = null;
|
|
|
+ let value, point, prevValue;
|
|
|
+ const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0;
|
|
|
+ const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value);
|
|
|
+ const shouldStart = () => inside || startIsBefore();
|
|
|
+ const shouldStop = () => !inside || endIsBefore();
|
|
|
+ for (let i = start, prev = start; i <= end; ++i) {
|
|
|
+ point = points[i % count];
|
|
|
+ if (point.skip) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ value = normalize(point[property]);
|
|
|
+ if (value === prevValue) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ inside = between(value, startBound, endBound);
|
|
|
+ if (subStart === null && shouldStart()) {
|
|
|
+ subStart = compare(value, startBound) === 0 ? i : prev;
|
|
|
+ }
|
|
|
+ if (subStart !== null && shouldStop()) {
|
|
|
+ result.push(normalizeSegment({start: subStart, end: i, loop, count, style}));
|
|
|
+ subStart = null;
|
|
|
+ }
|
|
|
+ prev = i;
|
|
|
+ prevValue = value;
|
|
|
+ }
|
|
|
+ if (subStart !== null) {
|
|
|
+ result.push(normalizeSegment({start: subStart, end, loop, count, style}));
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function _boundSegments(line, bounds) {
|
|
|
+ const result = [];
|
|
|
+ const segments = line.segments;
|
|
|
+ for (let i = 0; i < segments.length; i++) {
|
|
|
+ const sub = _boundSegment(segments[i], line.points, bounds);
|
|
|
+ if (sub.length) {
|
|
|
+ result.push(...sub);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function findStartAndEnd(points, count, loop, spanGaps) {
|
|
|
+ let start = 0;
|
|
|
+ let end = count - 1;
|
|
|
+ if (loop && !spanGaps) {
|
|
|
+ while (start < count && !points[start].skip) {
|
|
|
+ start++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ while (start < count && points[start].skip) {
|
|
|
+ start++;
|
|
|
+ }
|
|
|
+ start %= count;
|
|
|
+ if (loop) {
|
|
|
+ end += start;
|
|
|
+ }
|
|
|
+ while (end > start && points[end % count].skip) {
|
|
|
+ end--;
|
|
|
+ }
|
|
|
+ end %= count;
|
|
|
+ return {start, end};
|
|
|
+}
|
|
|
+function solidSegments(points, start, max, loop) {
|
|
|
+ const count = points.length;
|
|
|
+ const result = [];
|
|
|
+ let last = start;
|
|
|
+ let prev = points[start];
|
|
|
+ let end;
|
|
|
+ for (end = start + 1; end <= max; ++end) {
|
|
|
+ const cur = points[end % count];
|
|
|
+ if (cur.skip || cur.stop) {
|
|
|
+ if (!prev.skip) {
|
|
|
+ loop = false;
|
|
|
+ result.push({start: start % count, end: (end - 1) % count, loop});
|
|
|
+ start = last = cur.stop ? end : null;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ last = end;
|
|
|
+ if (prev.skip) {
|
|
|
+ start = end;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ prev = cur;
|
|
|
+ }
|
|
|
+ if (last !== null) {
|
|
|
+ result.push({start: start % count, end: last % count, loop});
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function _computeSegments(line, segmentOptions) {
|
|
|
+ const points = line.points;
|
|
|
+ const spanGaps = line.options.spanGaps;
|
|
|
+ const count = points.length;
|
|
|
+ if (!count) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ const loop = !!line._loop;
|
|
|
+ const {start, end} = findStartAndEnd(points, count, loop, spanGaps);
|
|
|
+ if (spanGaps === true) {
|
|
|
+ return splitByStyles(line, [{start, end, loop}], points, segmentOptions);
|
|
|
+ }
|
|
|
+ const max = end < start ? end + count : end;
|
|
|
+ const completeLoop = !!line._fullLoop && start === 0 && end === count - 1;
|
|
|
+ return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions);
|
|
|
+}
|
|
|
+function splitByStyles(line, segments, points, segmentOptions) {
|
|
|
+ if (!segmentOptions || !segmentOptions.setContext || !points) {
|
|
|
+ return segments;
|
|
|
+ }
|
|
|
+ return doSplitByStyles(line, segments, points, segmentOptions);
|
|
|
+}
|
|
|
+function doSplitByStyles(line, segments, points, segmentOptions) {
|
|
|
+ const baseStyle = readStyle(line.options);
|
|
|
+ const count = points.length;
|
|
|
+ const result = [];
|
|
|
+ let start = segments[0].start;
|
|
|
+ let i = start;
|
|
|
+ for (const segment of segments) {
|
|
|
+ let prevStyle = baseStyle;
|
|
|
+ let prev = points[start % count];
|
|
|
+ let style;
|
|
|
+ for (i = start + 1; i <= segment.end; i++) {
|
|
|
+ const pt = points[i % count];
|
|
|
+ style = readStyle(segmentOptions.setContext({
|
|
|
+ type: 'segment',
|
|
|
+ p0: prev,
|
|
|
+ p1: pt,
|
|
|
+ p0DataIndex: (i - 1) % count,
|
|
|
+ p1DataIndex: i % count,
|
|
|
+ datasetIndex: line._datasetIndex
|
|
|
+ }));
|
|
|
+ if (styleChanged(style, prevStyle)) {
|
|
|
+ result.push({start: start, end: i - 1, loop: segment.loop, style: prevStyle});
|
|
|
+ prevStyle = style;
|
|
|
+ start = i - 1;
|
|
|
+ }
|
|
|
+ prev = pt;
|
|
|
+ prevStyle = style;
|
|
|
+ }
|
|
|
+ if (start < i - 1) {
|
|
|
+ result.push({start, end: i - 1, loop: segment.loop, style});
|
|
|
+ start = i - 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function readStyle(options) {
|
|
|
+ return {
|
|
|
+ backgroundColor: options.backgroundColor,
|
|
|
+ borderCapStyle: options.borderCapStyle,
|
|
|
+ borderDash: options.borderDash,
|
|
|
+ borderDashOffset: options.borderDashOffset,
|
|
|
+ borderJoinStyle: options.borderJoinStyle,
|
|
|
+ borderWidth: options.borderWidth,
|
|
|
+ borderColor: options.borderColor
|
|
|
+ };
|
|
|
+}
|
|
|
+function styleChanged(style, prevStyle) {
|
|
|
+ return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle);
|
|
|
+}
|
|
|
+
|
|
|
+var helpers = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+easingEffects: effects,
|
|
|
+color: color,
|
|
|
+getHoverColor: getHoverColor,
|
|
|
+noop: noop,
|
|
|
+uid: uid,
|
|
|
+isNullOrUndef: isNullOrUndef,
|
|
|
+isArray: isArray,
|
|
|
+isObject: isObject,
|
|
|
+isFinite: isNumberFinite,
|
|
|
+finiteOrDefault: finiteOrDefault,
|
|
|
+valueOrDefault: valueOrDefault,
|
|
|
+toPercentage: toPercentage,
|
|
|
+toDimension: toDimension,
|
|
|
+callback: callback,
|
|
|
+each: each,
|
|
|
+_elementsEqual: _elementsEqual,
|
|
|
+clone: clone,
|
|
|
+_merger: _merger,
|
|
|
+merge: merge,
|
|
|
+mergeIf: mergeIf,
|
|
|
+_mergerIf: _mergerIf,
|
|
|
+_deprecated: _deprecated,
|
|
|
+resolveObjectKey: resolveObjectKey,
|
|
|
+_capitalize: _capitalize,
|
|
|
+defined: defined,
|
|
|
+isFunction: isFunction,
|
|
|
+setsEqual: setsEqual,
|
|
|
+toFontString: toFontString,
|
|
|
+_measureText: _measureText,
|
|
|
+_longestText: _longestText,
|
|
|
+_alignPixel: _alignPixel,
|
|
|
+clearCanvas: clearCanvas,
|
|
|
+drawPoint: drawPoint,
|
|
|
+_isPointInArea: _isPointInArea,
|
|
|
+clipArea: clipArea,
|
|
|
+unclipArea: unclipArea,
|
|
|
+_steppedLineTo: _steppedLineTo,
|
|
|
+_bezierCurveTo: _bezierCurveTo,
|
|
|
+renderText: renderText,
|
|
|
+addRoundedRectPath: addRoundedRectPath,
|
|
|
+_lookup: _lookup,
|
|
|
+_lookupByKey: _lookupByKey,
|
|
|
+_rlookupByKey: _rlookupByKey,
|
|
|
+_filterBetween: _filterBetween,
|
|
|
+listenArrayEvents: listenArrayEvents,
|
|
|
+unlistenArrayEvents: unlistenArrayEvents,
|
|
|
+_arrayUnique: _arrayUnique,
|
|
|
+_createResolver: _createResolver,
|
|
|
+_attachContext: _attachContext,
|
|
|
+_descriptors: _descriptors,
|
|
|
+splineCurve: splineCurve,
|
|
|
+splineCurveMonotone: splineCurveMonotone,
|
|
|
+_updateBezierControlPoints: _updateBezierControlPoints,
|
|
|
+_isDomSupported: _isDomSupported,
|
|
|
+_getParentNode: _getParentNode,
|
|
|
+getStyle: getStyle,
|
|
|
+getRelativePosition: getRelativePosition$1,
|
|
|
+getMaximumSize: getMaximumSize,
|
|
|
+retinaScale: retinaScale,
|
|
|
+supportsEventListenerOptions: supportsEventListenerOptions,
|
|
|
+readUsedSize: readUsedSize,
|
|
|
+fontString: fontString,
|
|
|
+requestAnimFrame: requestAnimFrame,
|
|
|
+throttled: throttled,
|
|
|
+debounce: debounce,
|
|
|
+_toLeftRightCenter: _toLeftRightCenter,
|
|
|
+_alignStartEnd: _alignStartEnd,
|
|
|
+_textX: _textX,
|
|
|
+_pointInLine: _pointInLine,
|
|
|
+_steppedInterpolation: _steppedInterpolation,
|
|
|
+_bezierInterpolation: _bezierInterpolation,
|
|
|
+formatNumber: formatNumber,
|
|
|
+toLineHeight: toLineHeight,
|
|
|
+_readValueToProps: _readValueToProps,
|
|
|
+toTRBL: toTRBL,
|
|
|
+toTRBLCorners: toTRBLCorners,
|
|
|
+toPadding: toPadding,
|
|
|
+toFont: toFont,
|
|
|
+resolve: resolve,
|
|
|
+_addGrace: _addGrace,
|
|
|
+PI: PI,
|
|
|
+TAU: TAU,
|
|
|
+PITAU: PITAU,
|
|
|
+INFINITY: INFINITY,
|
|
|
+RAD_PER_DEG: RAD_PER_DEG,
|
|
|
+HALF_PI: HALF_PI,
|
|
|
+QUARTER_PI: QUARTER_PI,
|
|
|
+TWO_THIRDS_PI: TWO_THIRDS_PI,
|
|
|
+log10: log10,
|
|
|
+sign: sign,
|
|
|
+niceNum: niceNum,
|
|
|
+_factorize: _factorize,
|
|
|
+isNumber: isNumber,
|
|
|
+almostEquals: almostEquals,
|
|
|
+almostWhole: almostWhole,
|
|
|
+_setMinAndMaxByKey: _setMinAndMaxByKey,
|
|
|
+toRadians: toRadians,
|
|
|
+toDegrees: toDegrees,
|
|
|
+_decimalPlaces: _decimalPlaces,
|
|
|
+getAngleFromPoint: getAngleFromPoint,
|
|
|
+distanceBetweenPoints: distanceBetweenPoints,
|
|
|
+_angleDiff: _angleDiff,
|
|
|
+_normalizeAngle: _normalizeAngle,
|
|
|
+_angleBetween: _angleBetween,
|
|
|
+_limitValue: _limitValue,
|
|
|
+_int16Range: _int16Range,
|
|
|
+getRtlAdapter: getRtlAdapter,
|
|
|
+overrideTextDirection: overrideTextDirection,
|
|
|
+restoreTextDirection: restoreTextDirection,
|
|
|
+_boundSegment: _boundSegment,
|
|
|
+_boundSegments: _boundSegments,
|
|
|
+_computeSegments: _computeSegments
|
|
|
+});
|
|
|
+
|
|
|
+class BasePlatform {
|
|
|
+ acquireContext(canvas, aspectRatio) {}
|
|
|
+ releaseContext(context) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ addEventListener(chart, type, listener) {}
|
|
|
+ removeEventListener(chart, type, listener) {}
|
|
|
+ getDevicePixelRatio() {
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ getMaximumSize(element, width, height, aspectRatio) {
|
|
|
+ width = Math.max(0, width || element.width);
|
|
|
+ height = height || element.height;
|
|
|
+ return {
|
|
|
+ width,
|
|
|
+ height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ isAttached(canvas) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+class BasicPlatform extends BasePlatform {
|
|
|
+ acquireContext(item) {
|
|
|
+ return item && item.getContext && item.getContext('2d') || null;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+const EXPANDO_KEY = '$chartjs';
|
|
|
+const EVENT_TYPES = {
|
|
|
+ touchstart: 'mousedown',
|
|
|
+ touchmove: 'mousemove',
|
|
|
+ touchend: 'mouseup',
|
|
|
+ pointerenter: 'mouseenter',
|
|
|
+ pointerdown: 'mousedown',
|
|
|
+ pointermove: 'mousemove',
|
|
|
+ pointerup: 'mouseup',
|
|
|
+ pointerleave: 'mouseout',
|
|
|
+ pointerout: 'mouseout'
|
|
|
+};
|
|
|
+const isNullOrEmpty = value => value === null || value === '';
|
|
|
+function initCanvas(canvas, aspectRatio) {
|
|
|
+ const style = canvas.style;
|
|
|
+ const renderHeight = canvas.getAttribute('height');
|
|
|
+ const renderWidth = canvas.getAttribute('width');
|
|
|
+ canvas[EXPANDO_KEY] = {
|
|
|
+ initial: {
|
|
|
+ height: renderHeight,
|
|
|
+ width: renderWidth,
|
|
|
+ style: {
|
|
|
+ display: style.display,
|
|
|
+ height: style.height,
|
|
|
+ width: style.width
|
|
|
+ }
|
|
|
+ }
|
|
|
+ };
|
|
|
+ style.display = style.display || 'block';
|
|
|
+ style.boxSizing = style.boxSizing || 'border-box';
|
|
|
+ if (isNullOrEmpty(renderWidth)) {
|
|
|
+ const displayWidth = readUsedSize(canvas, 'width');
|
|
|
+ if (displayWidth !== undefined) {
|
|
|
+ canvas.width = displayWidth;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (isNullOrEmpty(renderHeight)) {
|
|
|
+ if (canvas.style.height === '') {
|
|
|
+ canvas.height = canvas.width / (aspectRatio || 2);
|
|
|
+ } else {
|
|
|
+ const displayHeight = readUsedSize(canvas, 'height');
|
|
|
+ if (displayHeight !== undefined) {
|
|
|
+ canvas.height = displayHeight;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return canvas;
|
|
|
+}
|
|
|
+const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
|
|
|
+function addListener(node, type, listener) {
|
|
|
+ node.addEventListener(type, listener, eventListenerOptions);
|
|
|
+}
|
|
|
+function removeListener(chart, type, listener) {
|
|
|
+ chart.canvas.removeEventListener(type, listener, eventListenerOptions);
|
|
|
+}
|
|
|
+function fromNativeEvent(event, chart) {
|
|
|
+ const type = EVENT_TYPES[event.type] || event.type;
|
|
|
+ const {x, y} = getRelativePosition$1(event, chart);
|
|
|
+ return {
|
|
|
+ type,
|
|
|
+ chart,
|
|
|
+ native: event,
|
|
|
+ x: x !== undefined ? x : null,
|
|
|
+ y: y !== undefined ? y : null,
|
|
|
+ };
|
|
|
+}
|
|
|
+function createAttachObserver(chart, type, listener) {
|
|
|
+ const canvas = chart.canvas;
|
|
|
+ const container = canvas && _getParentNode(canvas);
|
|
|
+ const element = container || canvas;
|
|
|
+ const observer = new MutationObserver(entries => {
|
|
|
+ const parent = _getParentNode(element);
|
|
|
+ entries.forEach(entry => {
|
|
|
+ for (let i = 0; i < entry.addedNodes.length; i++) {
|
|
|
+ const added = entry.addedNodes[i];
|
|
|
+ if (added === element || added === parent) {
|
|
|
+ listener(entry.target);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+ });
|
|
|
+ observer.observe(document, {childList: true, subtree: true});
|
|
|
+ return observer;
|
|
|
+}
|
|
|
+function createDetachObserver(chart, type, listener) {
|
|
|
+ const canvas = chart.canvas;
|
|
|
+ const container = canvas && _getParentNode(canvas);
|
|
|
+ if (!container) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const observer = new MutationObserver(entries => {
|
|
|
+ entries.forEach(entry => {
|
|
|
+ for (let i = 0; i < entry.removedNodes.length; i++) {
|
|
|
+ if (entry.removedNodes[i] === canvas) {
|
|
|
+ listener();
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+ });
|
|
|
+ observer.observe(container, {childList: true});
|
|
|
+ return observer;
|
|
|
+}
|
|
|
+const drpListeningCharts = new Map();
|
|
|
+let oldDevicePixelRatio = 0;
|
|
|
+function onWindowResize() {
|
|
|
+ const dpr = window.devicePixelRatio;
|
|
|
+ if (dpr === oldDevicePixelRatio) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ oldDevicePixelRatio = dpr;
|
|
|
+ drpListeningCharts.forEach((resize, chart) => {
|
|
|
+ if (chart.currentDevicePixelRatio !== dpr) {
|
|
|
+ resize();
|
|
|
+ }
|
|
|
+ });
|
|
|
+}
|
|
|
+function listenDevicePixelRatioChanges(chart, resize) {
|
|
|
+ if (!drpListeningCharts.size) {
|
|
|
+ window.addEventListener('resize', onWindowResize);
|
|
|
+ }
|
|
|
+ drpListeningCharts.set(chart, resize);
|
|
|
+}
|
|
|
+function unlistenDevicePixelRatioChanges(chart) {
|
|
|
+ drpListeningCharts.delete(chart);
|
|
|
+ if (!drpListeningCharts.size) {
|
|
|
+ window.removeEventListener('resize', onWindowResize);
|
|
|
+ }
|
|
|
+}
|
|
|
+function createResizeObserver(chart, type, listener) {
|
|
|
+ const canvas = chart.canvas;
|
|
|
+ const container = canvas && _getParentNode(canvas);
|
|
|
+ if (!container) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const resize = throttled((width, height) => {
|
|
|
+ const w = container.clientWidth;
|
|
|
+ listener(width, height);
|
|
|
+ if (w < container.clientWidth) {
|
|
|
+ listener();
|
|
|
+ }
|
|
|
+ }, window);
|
|
|
+ const observer = new ResizeObserver(entries => {
|
|
|
+ const entry = entries[0];
|
|
|
+ const width = entry.contentRect.width;
|
|
|
+ const height = entry.contentRect.height;
|
|
|
+ if (width === 0 && height === 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ resize(width, height);
|
|
|
+ });
|
|
|
+ observer.observe(container);
|
|
|
+ listenDevicePixelRatioChanges(chart, resize);
|
|
|
+ return observer;
|
|
|
+}
|
|
|
+function releaseObserver(chart, type, observer) {
|
|
|
+ if (observer) {
|
|
|
+ observer.disconnect();
|
|
|
+ }
|
|
|
+ if (type === 'resize') {
|
|
|
+ unlistenDevicePixelRatioChanges(chart);
|
|
|
+ }
|
|
|
+}
|
|
|
+function createProxyAndListen(chart, type, listener) {
|
|
|
+ const canvas = chart.canvas;
|
|
|
+ const proxy = throttled((event) => {
|
|
|
+ if (chart.ctx !== null) {
|
|
|
+ listener(fromNativeEvent(event, chart));
|
|
|
+ }
|
|
|
+ }, chart, (args) => {
|
|
|
+ const event = args[0];
|
|
|
+ return [event, event.offsetX, event.offsetY];
|
|
|
+ });
|
|
|
+ addListener(canvas, type, proxy);
|
|
|
+ return proxy;
|
|
|
+}
|
|
|
+class DomPlatform extends BasePlatform {
|
|
|
+ acquireContext(canvas, aspectRatio) {
|
|
|
+ const context = canvas && canvas.getContext && canvas.getContext('2d');
|
|
|
+ if (context && context.canvas === canvas) {
|
|
|
+ initCanvas(canvas, aspectRatio);
|
|
|
+ return context;
|
|
|
+ }
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ releaseContext(context) {
|
|
|
+ const canvas = context.canvas;
|
|
|
+ if (!canvas[EXPANDO_KEY]) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ const initial = canvas[EXPANDO_KEY].initial;
|
|
|
+ ['height', 'width'].forEach((prop) => {
|
|
|
+ const value = initial[prop];
|
|
|
+ if (isNullOrUndef(value)) {
|
|
|
+ canvas.removeAttribute(prop);
|
|
|
+ } else {
|
|
|
+ canvas.setAttribute(prop, value);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ const style = initial.style || {};
|
|
|
+ Object.keys(style).forEach((key) => {
|
|
|
+ canvas.style[key] = style[key];
|
|
|
+ });
|
|
|
+ canvas.width = canvas.width;
|
|
|
+ delete canvas[EXPANDO_KEY];
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ addEventListener(chart, type, listener) {
|
|
|
+ this.removeEventListener(chart, type);
|
|
|
+ const proxies = chart.$proxies || (chart.$proxies = {});
|
|
|
+ const handlers = {
|
|
|
+ attach: createAttachObserver,
|
|
|
+ detach: createDetachObserver,
|
|
|
+ resize: createResizeObserver
|
|
|
+ };
|
|
|
+ const handler = handlers[type] || createProxyAndListen;
|
|
|
+ proxies[type] = handler(chart, type, listener);
|
|
|
+ }
|
|
|
+ removeEventListener(chart, type) {
|
|
|
+ const proxies = chart.$proxies || (chart.$proxies = {});
|
|
|
+ const proxy = proxies[type];
|
|
|
+ if (!proxy) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const handlers = {
|
|
|
+ attach: releaseObserver,
|
|
|
+ detach: releaseObserver,
|
|
|
+ resize: releaseObserver
|
|
|
+ };
|
|
|
+ const handler = handlers[type] || removeListener;
|
|
|
+ handler(chart, type, proxy);
|
|
|
+ proxies[type] = undefined;
|
|
|
+ }
|
|
|
+ getDevicePixelRatio() {
|
|
|
+ return window.devicePixelRatio;
|
|
|
+ }
|
|
|
+ getMaximumSize(canvas, width, height, aspectRatio) {
|
|
|
+ return getMaximumSize(canvas, width, height, aspectRatio);
|
|
|
+ }
|
|
|
+ isAttached(canvas) {
|
|
|
+ const container = _getParentNode(canvas);
|
|
|
+ return !!(container && container.isConnected);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+function _detectPlatform(canvas) {
|
|
|
+ if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) {
|
|
|
+ return BasicPlatform;
|
|
|
+ }
|
|
|
+ return DomPlatform;
|
|
|
+}
|
|
|
+
|
|
|
+var platforms = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+_detectPlatform: _detectPlatform,
|
|
|
+BasePlatform: BasePlatform,
|
|
|
+BasicPlatform: BasicPlatform,
|
|
|
+DomPlatform: DomPlatform
|
|
|
+});
|
|
|
+
|
|
|
+const transparent = 'transparent';
|
|
|
+const interpolators = {
|
|
|
+ boolean(from, to, factor) {
|
|
|
+ return factor > 0.5 ? to : from;
|
|
|
+ },
|
|
|
+ color(from, to, factor) {
|
|
|
+ const c0 = color(from || transparent);
|
|
|
+ const c1 = c0.valid && color(to || transparent);
|
|
|
+ return c1 && c1.valid
|
|
|
+ ? c1.mix(c0, factor).hexString()
|
|
|
+ : to;
|
|
|
+ },
|
|
|
+ number(from, to, factor) {
|
|
|
+ return from + (to - from) * factor;
|
|
|
+ }
|
|
|
+};
|
|
|
+class Animation {
|
|
|
+ constructor(cfg, target, prop, to) {
|
|
|
+ const currentValue = target[prop];
|
|
|
+ to = resolve([cfg.to, to, currentValue, cfg.from]);
|
|
|
+ const from = resolve([cfg.from, currentValue, to]);
|
|
|
+ this._active = true;
|
|
|
+ this._fn = cfg.fn || interpolators[cfg.type || typeof from];
|
|
|
+ this._easing = effects[cfg.easing] || effects.linear;
|
|
|
+ this._start = Math.floor(Date.now() + (cfg.delay || 0));
|
|
|
+ this._duration = this._total = Math.floor(cfg.duration);
|
|
|
+ this._loop = !!cfg.loop;
|
|
|
+ this._target = target;
|
|
|
+ this._prop = prop;
|
|
|
+ this._from = from;
|
|
|
+ this._to = to;
|
|
|
+ this._promises = undefined;
|
|
|
+ }
|
|
|
+ active() {
|
|
|
+ return this._active;
|
|
|
+ }
|
|
|
+ update(cfg, to, date) {
|
|
|
+ const me = this;
|
|
|
+ if (me._active) {
|
|
|
+ me._notify(false);
|
|
|
+ const currentValue = me._target[me._prop];
|
|
|
+ const elapsed = date - me._start;
|
|
|
+ const remain = me._duration - elapsed;
|
|
|
+ me._start = date;
|
|
|
+ me._duration = Math.floor(Math.max(remain, cfg.duration));
|
|
|
+ me._total += elapsed;
|
|
|
+ me._loop = !!cfg.loop;
|
|
|
+ me._to = resolve([cfg.to, to, currentValue, cfg.from]);
|
|
|
+ me._from = resolve([cfg.from, currentValue, to]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ cancel() {
|
|
|
+ const me = this;
|
|
|
+ if (me._active) {
|
|
|
+ me.tick(Date.now());
|
|
|
+ me._active = false;
|
|
|
+ me._notify(false);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ tick(date) {
|
|
|
+ const me = this;
|
|
|
+ const elapsed = date - me._start;
|
|
|
+ const duration = me._duration;
|
|
|
+ const prop = me._prop;
|
|
|
+ const from = me._from;
|
|
|
+ const loop = me._loop;
|
|
|
+ const to = me._to;
|
|
|
+ let factor;
|
|
|
+ me._active = from !== to && (loop || (elapsed < duration));
|
|
|
+ if (!me._active) {
|
|
|
+ me._target[prop] = to;
|
|
|
+ me._notify(true);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (elapsed < 0) {
|
|
|
+ me._target[prop] = from;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ factor = (elapsed / duration) % 2;
|
|
|
+ factor = loop && factor > 1 ? 2 - factor : factor;
|
|
|
+ factor = me._easing(Math.min(1, Math.max(0, factor)));
|
|
|
+ me._target[prop] = me._fn(from, to, factor);
|
|
|
+ }
|
|
|
+ wait() {
|
|
|
+ const promises = this._promises || (this._promises = []);
|
|
|
+ return new Promise((res, rej) => {
|
|
|
+ promises.push({res, rej});
|
|
|
+ });
|
|
|
+ }
|
|
|
+ _notify(resolved) {
|
|
|
+ const method = resolved ? 'res' : 'rej';
|
|
|
+ const promises = this._promises || [];
|
|
|
+ for (let i = 0; i < promises.length; i++) {
|
|
|
+ promises[i][method]();
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+const numbers = ['x', 'y', 'borderWidth', 'radius', 'tension'];
|
|
|
+const colors = ['color', 'borderColor', 'backgroundColor'];
|
|
|
+defaults.set('animation', {
|
|
|
+ delay: undefined,
|
|
|
+ duration: 1000,
|
|
|
+ easing: 'easeOutQuart',
|
|
|
+ fn: undefined,
|
|
|
+ from: undefined,
|
|
|
+ loop: undefined,
|
|
|
+ to: undefined,
|
|
|
+ type: undefined,
|
|
|
+});
|
|
|
+const animationOptions = Object.keys(defaults.animation);
|
|
|
+defaults.describe('animation', {
|
|
|
+ _fallback: false,
|
|
|
+ _indexable: false,
|
|
|
+ _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn',
|
|
|
+});
|
|
|
+defaults.set('animations', {
|
|
|
+ colors: {
|
|
|
+ type: 'color',
|
|
|
+ properties: colors
|
|
|
+ },
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: numbers
|
|
|
+ },
|
|
|
+});
|
|
|
+defaults.describe('animations', {
|
|
|
+ _fallback: 'animation',
|
|
|
+});
|
|
|
+defaults.set('transitions', {
|
|
|
+ active: {
|
|
|
+ animation: {
|
|
|
+ duration: 400
|
|
|
+ }
|
|
|
+ },
|
|
|
+ resize: {
|
|
|
+ animation: {
|
|
|
+ duration: 0
|
|
|
+ }
|
|
|
+ },
|
|
|
+ show: {
|
|
|
+ animations: {
|
|
|
+ colors: {
|
|
|
+ from: 'transparent'
|
|
|
+ },
|
|
|
+ visible: {
|
|
|
+ type: 'boolean',
|
|
|
+ duration: 0
|
|
|
+ },
|
|
|
+ }
|
|
|
+ },
|
|
|
+ hide: {
|
|
|
+ animations: {
|
|
|
+ colors: {
|
|
|
+ to: 'transparent'
|
|
|
+ },
|
|
|
+ visible: {
|
|
|
+ type: 'boolean',
|
|
|
+ easing: 'linear',
|
|
|
+ fn: v => v | 0
|
|
|
+ },
|
|
|
+ }
|
|
|
+ }
|
|
|
+});
|
|
|
+class Animations {
|
|
|
+ constructor(chart, config) {
|
|
|
+ this._chart = chart;
|
|
|
+ this._properties = new Map();
|
|
|
+ this.configure(config);
|
|
|
+ }
|
|
|
+ configure(config) {
|
|
|
+ if (!isObject(config)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const animatedProps = this._properties;
|
|
|
+ Object.getOwnPropertyNames(config).forEach(key => {
|
|
|
+ const cfg = config[key];
|
|
|
+ if (!isObject(cfg)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const resolved = {};
|
|
|
+ for (const option of animationOptions) {
|
|
|
+ resolved[option] = cfg[option];
|
|
|
+ }
|
|
|
+ (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => {
|
|
|
+ if (prop === key || !animatedProps.has(prop)) {
|
|
|
+ animatedProps.set(prop, resolved);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ });
|
|
|
+ }
|
|
|
+ _animateOptions(target, values) {
|
|
|
+ const newOptions = values.options;
|
|
|
+ const options = resolveTargetOptions(target, newOptions);
|
|
|
+ if (!options) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ const animations = this._createAnimations(options, newOptions);
|
|
|
+ if (newOptions.$shared) {
|
|
|
+ awaitAll(target.options.$animations, newOptions).then(() => {
|
|
|
+ target.options = newOptions;
|
|
|
+ }, () => {
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return animations;
|
|
|
+ }
|
|
|
+ _createAnimations(target, values) {
|
|
|
+ const animatedProps = this._properties;
|
|
|
+ const animations = [];
|
|
|
+ const running = target.$animations || (target.$animations = {});
|
|
|
+ const props = Object.keys(values);
|
|
|
+ const date = Date.now();
|
|
|
+ let i;
|
|
|
+ for (i = props.length - 1; i >= 0; --i) {
|
|
|
+ const prop = props[i];
|
|
|
+ if (prop.charAt(0) === '$') {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (prop === 'options') {
|
|
|
+ animations.push(...this._animateOptions(target, values));
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const value = values[prop];
|
|
|
+ let animation = running[prop];
|
|
|
+ const cfg = animatedProps.get(prop);
|
|
|
+ if (animation) {
|
|
|
+ if (cfg && animation.active()) {
|
|
|
+ animation.update(cfg, value, date);
|
|
|
+ continue;
|
|
|
+ } else {
|
|
|
+ animation.cancel();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (!cfg || !cfg.duration) {
|
|
|
+ target[prop] = value;
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ running[prop] = animation = new Animation(cfg, target, prop, value);
|
|
|
+ animations.push(animation);
|
|
|
+ }
|
|
|
+ return animations;
|
|
|
+ }
|
|
|
+ update(target, values) {
|
|
|
+ if (this._properties.size === 0) {
|
|
|
+ Object.assign(target, values);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const animations = this._createAnimations(target, values);
|
|
|
+ if (animations.length) {
|
|
|
+ animator.add(this._chart, animations);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function awaitAll(animations, properties) {
|
|
|
+ const running = [];
|
|
|
+ const keys = Object.keys(properties);
|
|
|
+ for (let i = 0; i < keys.length; i++) {
|
|
|
+ const anim = animations[keys[i]];
|
|
|
+ if (anim && anim.active()) {
|
|
|
+ running.push(anim.wait());
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return Promise.all(running);
|
|
|
+}
|
|
|
+function resolveTargetOptions(target, newOptions) {
|
|
|
+ if (!newOptions) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ let options = target.options;
|
|
|
+ if (!options) {
|
|
|
+ target.options = newOptions;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (options.$shared) {
|
|
|
+ target.options = options = Object.assign({}, options, {$shared: false, $animations: {}});
|
|
|
+ }
|
|
|
+ return options;
|
|
|
+}
|
|
|
+
|
|
|
+function scaleClip(scale, allowedOverflow) {
|
|
|
+ const opts = scale && scale.options || {};
|
|
|
+ const reverse = opts.reverse;
|
|
|
+ const min = opts.min === undefined ? allowedOverflow : 0;
|
|
|
+ const max = opts.max === undefined ? allowedOverflow : 0;
|
|
|
+ return {
|
|
|
+ start: reverse ? max : min,
|
|
|
+ end: reverse ? min : max
|
|
|
+ };
|
|
|
+}
|
|
|
+function defaultClip(xScale, yScale, allowedOverflow) {
|
|
|
+ if (allowedOverflow === false) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ const x = scaleClip(xScale, allowedOverflow);
|
|
|
+ const y = scaleClip(yScale, allowedOverflow);
|
|
|
+ return {
|
|
|
+ top: y.end,
|
|
|
+ right: x.end,
|
|
|
+ bottom: y.start,
|
|
|
+ left: x.start
|
|
|
+ };
|
|
|
+}
|
|
|
+function toClip(value) {
|
|
|
+ let t, r, b, l;
|
|
|
+ if (isObject(value)) {
|
|
|
+ t = value.top;
|
|
|
+ r = value.right;
|
|
|
+ b = value.bottom;
|
|
|
+ l = value.left;
|
|
|
+ } else {
|
|
|
+ t = r = b = l = value;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ top: t,
|
|
|
+ right: r,
|
|
|
+ bottom: b,
|
|
|
+ left: l,
|
|
|
+ disabled: value === false
|
|
|
+ };
|
|
|
+}
|
|
|
+function getSortedDatasetIndices(chart, filterVisible) {
|
|
|
+ const keys = [];
|
|
|
+ const metasets = chart._getSortedDatasetMetas(filterVisible);
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = metasets.length; i < ilen; ++i) {
|
|
|
+ keys.push(metasets[i].index);
|
|
|
+ }
|
|
|
+ return keys;
|
|
|
+}
|
|
|
+function applyStack(stack, value, dsIndex, options) {
|
|
|
+ const keys = stack.keys;
|
|
|
+ const singleMode = options.mode === 'single';
|
|
|
+ let i, ilen, datasetIndex, otherValue;
|
|
|
+ if (value === null) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = keys.length; i < ilen; ++i) {
|
|
|
+ datasetIndex = +keys[i];
|
|
|
+ if (datasetIndex === dsIndex) {
|
|
|
+ if (options.all) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ otherValue = stack.values[datasetIndex];
|
|
|
+ if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) {
|
|
|
+ value += otherValue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+}
|
|
|
+function convertObjectDataToArray(data) {
|
|
|
+ const keys = Object.keys(data);
|
|
|
+ const adata = new Array(keys.length);
|
|
|
+ let i, ilen, key;
|
|
|
+ for (i = 0, ilen = keys.length; i < ilen; ++i) {
|
|
|
+ key = keys[i];
|
|
|
+ adata[i] = {
|
|
|
+ x: key,
|
|
|
+ y: data[key]
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return adata;
|
|
|
+}
|
|
|
+function isStacked(scale, meta) {
|
|
|
+ const stacked = scale && scale.options.stacked;
|
|
|
+ return stacked || (stacked === undefined && meta.stack !== undefined);
|
|
|
+}
|
|
|
+function getStackKey(indexScale, valueScale, meta) {
|
|
|
+ return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`;
|
|
|
+}
|
|
|
+function getUserBounds(scale) {
|
|
|
+ const {min, max, minDefined, maxDefined} = scale.getUserBounds();
|
|
|
+ return {
|
|
|
+ min: minDefined ? min : Number.NEGATIVE_INFINITY,
|
|
|
+ max: maxDefined ? max : Number.POSITIVE_INFINITY
|
|
|
+ };
|
|
|
+}
|
|
|
+function getOrCreateStack(stacks, stackKey, indexValue) {
|
|
|
+ const subStack = stacks[stackKey] || (stacks[stackKey] = {});
|
|
|
+ return subStack[indexValue] || (subStack[indexValue] = {});
|
|
|
+}
|
|
|
+function getLastIndexInStack(stack, vScale, positive) {
|
|
|
+ for (const meta of vScale.getMatchingVisibleMetas('bar').reverse()) {
|
|
|
+ const value = stack[meta.index];
|
|
|
+ if ((positive && value > 0) || (!positive && value < 0)) {
|
|
|
+ return meta.index;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return null;
|
|
|
+}
|
|
|
+function updateStacks(controller, parsed) {
|
|
|
+ const {chart, _cachedMeta: meta} = controller;
|
|
|
+ const stacks = chart._stacks || (chart._stacks = {});
|
|
|
+ const {iScale, vScale, index: datasetIndex} = meta;
|
|
|
+ const iAxis = iScale.axis;
|
|
|
+ const vAxis = vScale.axis;
|
|
|
+ const key = getStackKey(iScale, vScale, meta);
|
|
|
+ const ilen = parsed.length;
|
|
|
+ let stack;
|
|
|
+ for (let i = 0; i < ilen; ++i) {
|
|
|
+ const item = parsed[i];
|
|
|
+ const {[iAxis]: index, [vAxis]: value} = item;
|
|
|
+ const itemStacks = item._stacks || (item._stacks = {});
|
|
|
+ stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index);
|
|
|
+ stack[datasetIndex] = value;
|
|
|
+ stack._top = getLastIndexInStack(stack, vScale, true);
|
|
|
+ stack._bottom = getLastIndexInStack(stack, vScale, false);
|
|
|
+ }
|
|
|
+}
|
|
|
+function getFirstScaleId(chart, axis) {
|
|
|
+ const scales = chart.scales;
|
|
|
+ return Object.keys(scales).filter(key => scales[key].axis === axis).shift();
|
|
|
+}
|
|
|
+function createDatasetContext(parent, index) {
|
|
|
+ return Object.assign(Object.create(parent),
|
|
|
+ {
|
|
|
+ active: false,
|
|
|
+ dataset: undefined,
|
|
|
+ datasetIndex: index,
|
|
|
+ index,
|
|
|
+ mode: 'default',
|
|
|
+ type: 'dataset'
|
|
|
+ }
|
|
|
+ );
|
|
|
+}
|
|
|
+function createDataContext(parent, index, element) {
|
|
|
+ return Object.assign(Object.create(parent), {
|
|
|
+ active: false,
|
|
|
+ dataIndex: index,
|
|
|
+ parsed: undefined,
|
|
|
+ raw: undefined,
|
|
|
+ element,
|
|
|
+ index,
|
|
|
+ mode: 'default',
|
|
|
+ type: 'data'
|
|
|
+ });
|
|
|
+}
|
|
|
+function clearStacks(meta, items) {
|
|
|
+ const datasetIndex = meta.controller.index;
|
|
|
+ const axis = meta.vScale && meta.vScale.axis;
|
|
|
+ if (!axis) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ items = items || meta._parsed;
|
|
|
+ for (const parsed of items) {
|
|
|
+ const stacks = parsed._stacks;
|
|
|
+ if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ delete stacks[axis][datasetIndex];
|
|
|
+ }
|
|
|
+}
|
|
|
+const isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none';
|
|
|
+const cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached);
|
|
|
+class DatasetController {
|
|
|
+ constructor(chart, datasetIndex) {
|
|
|
+ this.chart = chart;
|
|
|
+ this._ctx = chart.ctx;
|
|
|
+ this.index = datasetIndex;
|
|
|
+ this._cachedDataOpts = {};
|
|
|
+ this._cachedMeta = this.getMeta();
|
|
|
+ this._type = this._cachedMeta.type;
|
|
|
+ this.options = undefined;
|
|
|
+ this._parsing = false;
|
|
|
+ this._data = undefined;
|
|
|
+ this._objectData = undefined;
|
|
|
+ this._sharedOptions = undefined;
|
|
|
+ this._drawStart = undefined;
|
|
|
+ this._drawCount = undefined;
|
|
|
+ this.enableOptionSharing = false;
|
|
|
+ this.$context = undefined;
|
|
|
+ this._syncList = [];
|
|
|
+ this.initialize();
|
|
|
+ }
|
|
|
+ initialize() {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ me.configure();
|
|
|
+ me.linkScales();
|
|
|
+ meta._stacked = isStacked(meta.vScale, meta);
|
|
|
+ me.addElements();
|
|
|
+ }
|
|
|
+ updateIndex(datasetIndex) {
|
|
|
+ if (this.index !== datasetIndex) {
|
|
|
+ clearStacks(this._cachedMeta);
|
|
|
+ }
|
|
|
+ this.index = datasetIndex;
|
|
|
+ }
|
|
|
+ linkScales() {
|
|
|
+ const me = this;
|
|
|
+ const chart = me.chart;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y;
|
|
|
+ const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x'));
|
|
|
+ const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y'));
|
|
|
+ const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r'));
|
|
|
+ const indexAxis = meta.indexAxis;
|
|
|
+ const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid);
|
|
|
+ const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid);
|
|
|
+ meta.xScale = me.getScaleForId(xid);
|
|
|
+ meta.yScale = me.getScaleForId(yid);
|
|
|
+ meta.rScale = me.getScaleForId(rid);
|
|
|
+ meta.iScale = me.getScaleForId(iid);
|
|
|
+ meta.vScale = me.getScaleForId(vid);
|
|
|
+ }
|
|
|
+ getDataset() {
|
|
|
+ return this.chart.data.datasets[this.index];
|
|
|
+ }
|
|
|
+ getMeta() {
|
|
|
+ return this.chart.getDatasetMeta(this.index);
|
|
|
+ }
|
|
|
+ getScaleForId(scaleID) {
|
|
|
+ return this.chart.scales[scaleID];
|
|
|
+ }
|
|
|
+ _getOtherScale(scale) {
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ return scale === meta.iScale
|
|
|
+ ? meta.vScale
|
|
|
+ : meta.iScale;
|
|
|
+ }
|
|
|
+ reset() {
|
|
|
+ this._update('reset');
|
|
|
+ }
|
|
|
+ _destroy() {
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ if (this._data) {
|
|
|
+ unlistenArrayEvents(this._data, this);
|
|
|
+ }
|
|
|
+ if (meta._stacked) {
|
|
|
+ clearStacks(meta);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _dataCheck() {
|
|
|
+ const me = this;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ const data = dataset.data || (dataset.data = []);
|
|
|
+ const _data = me._data;
|
|
|
+ if (isObject(data)) {
|
|
|
+ me._data = convertObjectDataToArray(data);
|
|
|
+ } else if (_data !== data) {
|
|
|
+ if (_data) {
|
|
|
+ unlistenArrayEvents(_data, me);
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ clearStacks(meta);
|
|
|
+ meta._parsed = [];
|
|
|
+ }
|
|
|
+ if (data && Object.isExtensible(data)) {
|
|
|
+ listenArrayEvents(data, me);
|
|
|
+ }
|
|
|
+ me._syncList = [];
|
|
|
+ me._data = data;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ addElements() {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ me._dataCheck();
|
|
|
+ if (me.datasetElementType) {
|
|
|
+ meta.dataset = new me.datasetElementType();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ buildOrUpdateElements(resetNewElements) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ let stackChanged = false;
|
|
|
+ me._dataCheck();
|
|
|
+ const oldStacked = meta._stacked;
|
|
|
+ meta._stacked = isStacked(meta.vScale, meta);
|
|
|
+ if (meta.stack !== dataset.stack) {
|
|
|
+ stackChanged = true;
|
|
|
+ clearStacks(meta);
|
|
|
+ meta.stack = dataset.stack;
|
|
|
+ }
|
|
|
+ me._resyncElements(resetNewElements);
|
|
|
+ if (stackChanged || oldStacked !== meta._stacked) {
|
|
|
+ updateStacks(me, meta._parsed);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ configure() {
|
|
|
+ const me = this;
|
|
|
+ const config = me.chart.config;
|
|
|
+ const scopeKeys = config.datasetScopeKeys(me._type);
|
|
|
+ const scopes = config.getOptionScopes(me.getDataset(), scopeKeys, true);
|
|
|
+ me.options = config.createResolver(scopes, me.getContext());
|
|
|
+ me._parsing = me.options.parsing;
|
|
|
+ }
|
|
|
+ parse(start, count) {
|
|
|
+ const me = this;
|
|
|
+ const {_cachedMeta: meta, _data: data} = me;
|
|
|
+ const {iScale, _stacked} = meta;
|
|
|
+ const iAxis = iScale.axis;
|
|
|
+ let sorted = start === 0 && count === data.length ? true : meta._sorted;
|
|
|
+ let prev = start > 0 && meta._parsed[start - 1];
|
|
|
+ let i, cur, parsed;
|
|
|
+ if (me._parsing === false) {
|
|
|
+ meta._parsed = data;
|
|
|
+ meta._sorted = true;
|
|
|
+ parsed = data;
|
|
|
+ } else {
|
|
|
+ if (isArray(data[start])) {
|
|
|
+ parsed = me.parseArrayData(meta, data, start, count);
|
|
|
+ } else if (isObject(data[start])) {
|
|
|
+ parsed = me.parseObjectData(meta, data, start, count);
|
|
|
+ } else {
|
|
|
+ parsed = me.parsePrimitiveData(meta, data, start, count);
|
|
|
+ }
|
|
|
+ const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]);
|
|
|
+ for (i = 0; i < count; ++i) {
|
|
|
+ meta._parsed[i + start] = cur = parsed[i];
|
|
|
+ if (sorted) {
|
|
|
+ if (isNotInOrderComparedToPrev()) {
|
|
|
+ sorted = false;
|
|
|
+ }
|
|
|
+ prev = cur;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ meta._sorted = sorted;
|
|
|
+ }
|
|
|
+ if (_stacked) {
|
|
|
+ updateStacks(me, parsed);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ parsePrimitiveData(meta, data, start, count) {
|
|
|
+ const {iScale, vScale} = meta;
|
|
|
+ const iAxis = iScale.axis;
|
|
|
+ const vAxis = vScale.axis;
|
|
|
+ const labels = iScale.getLabels();
|
|
|
+ const singleScale = iScale === vScale;
|
|
|
+ const parsed = new Array(count);
|
|
|
+ let i, ilen, index;
|
|
|
+ for (i = 0, ilen = count; i < ilen; ++i) {
|
|
|
+ index = i + start;
|
|
|
+ parsed[i] = {
|
|
|
+ [iAxis]: singleScale || iScale.parse(labels[index], index),
|
|
|
+ [vAxis]: vScale.parse(data[index], index)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+ }
|
|
|
+ parseArrayData(meta, data, start, count) {
|
|
|
+ const {xScale, yScale} = meta;
|
|
|
+ const parsed = new Array(count);
|
|
|
+ let i, ilen, index, item;
|
|
|
+ for (i = 0, ilen = count; i < ilen; ++i) {
|
|
|
+ index = i + start;
|
|
|
+ item = data[index];
|
|
|
+ parsed[i] = {
|
|
|
+ x: xScale.parse(item[0], index),
|
|
|
+ y: yScale.parse(item[1], index)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+ }
|
|
|
+ parseObjectData(meta, data, start, count) {
|
|
|
+ const {xScale, yScale} = meta;
|
|
|
+ const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing;
|
|
|
+ const parsed = new Array(count);
|
|
|
+ let i, ilen, index, item;
|
|
|
+ for (i = 0, ilen = count; i < ilen; ++i) {
|
|
|
+ index = i + start;
|
|
|
+ item = data[index];
|
|
|
+ parsed[i] = {
|
|
|
+ x: xScale.parse(resolveObjectKey(item, xAxisKey), index),
|
|
|
+ y: yScale.parse(resolveObjectKey(item, yAxisKey), index)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+ }
|
|
|
+ getParsed(index) {
|
|
|
+ return this._cachedMeta._parsed[index];
|
|
|
+ }
|
|
|
+ getDataElement(index) {
|
|
|
+ return this._cachedMeta.data[index];
|
|
|
+ }
|
|
|
+ applyStack(scale, parsed, mode) {
|
|
|
+ const chart = this.chart;
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ const value = parsed[scale.axis];
|
|
|
+ const stack = {
|
|
|
+ keys: getSortedDatasetIndices(chart, true),
|
|
|
+ values: parsed._stacks[scale.axis]
|
|
|
+ };
|
|
|
+ return applyStack(stack, value, meta.index, {mode});
|
|
|
+ }
|
|
|
+ updateRangeFromParsed(range, scale, parsed, stack) {
|
|
|
+ const parsedValue = parsed[scale.axis];
|
|
|
+ let value = parsedValue === null ? NaN : parsedValue;
|
|
|
+ const values = stack && parsed._stacks[scale.axis];
|
|
|
+ if (stack && values) {
|
|
|
+ stack.values = values;
|
|
|
+ range.min = Math.min(range.min, value);
|
|
|
+ range.max = Math.max(range.max, value);
|
|
|
+ value = applyStack(stack, parsedValue, this._cachedMeta.index, {all: true});
|
|
|
+ }
|
|
|
+ range.min = Math.min(range.min, value);
|
|
|
+ range.max = Math.max(range.max, value);
|
|
|
+ }
|
|
|
+ getMinMax(scale, canStack) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const _parsed = meta._parsed;
|
|
|
+ const sorted = meta._sorted && scale === meta.iScale;
|
|
|
+ const ilen = _parsed.length;
|
|
|
+ const otherScale = me._getOtherScale(scale);
|
|
|
+ const stack = canStack && meta._stacked && {keys: getSortedDatasetIndices(me.chart, true), values: null};
|
|
|
+ const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY};
|
|
|
+ const {min: otherMin, max: otherMax} = getUserBounds(otherScale);
|
|
|
+ let i, value, parsed, otherValue;
|
|
|
+ function _skip() {
|
|
|
+ parsed = _parsed[i];
|
|
|
+ value = parsed[scale.axis];
|
|
|
+ otherValue = parsed[otherScale.axis];
|
|
|
+ return !isNumberFinite(value) || otherMin > otherValue || otherMax < otherValue;
|
|
|
+ }
|
|
|
+ for (i = 0; i < ilen; ++i) {
|
|
|
+ if (_skip()) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ me.updateRangeFromParsed(range, scale, parsed, stack);
|
|
|
+ if (sorted) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (sorted) {
|
|
|
+ for (i = ilen - 1; i >= 0; --i) {
|
|
|
+ if (_skip()) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ me.updateRangeFromParsed(range, scale, parsed, stack);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return range;
|
|
|
+ }
|
|
|
+ getAllParsedValues(scale) {
|
|
|
+ const parsed = this._cachedMeta._parsed;
|
|
|
+ const values = [];
|
|
|
+ let i, ilen, value;
|
|
|
+ for (i = 0, ilen = parsed.length; i < ilen; ++i) {
|
|
|
+ value = parsed[i][scale.axis];
|
|
|
+ if (isNumberFinite(value)) {
|
|
|
+ values.push(value);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return values;
|
|
|
+ }
|
|
|
+ getMaxOverflow() {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const iScale = meta.iScale;
|
|
|
+ const vScale = meta.vScale;
|
|
|
+ const parsed = me.getParsed(index);
|
|
|
+ return {
|
|
|
+ label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '',
|
|
|
+ value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : ''
|
|
|
+ };
|
|
|
+ }
|
|
|
+ _update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ me.configure();
|
|
|
+ me._cachedDataOpts = {};
|
|
|
+ me.update(mode || 'default');
|
|
|
+ meta._clip = toClip(valueOrDefault(me.options.clip, defaultClip(meta.xScale, meta.yScale, me.getMaxOverflow())));
|
|
|
+ }
|
|
|
+ update(mode) {}
|
|
|
+ draw() {
|
|
|
+ const me = this;
|
|
|
+ const ctx = me._ctx;
|
|
|
+ const chart = me.chart;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const elements = meta.data || [];
|
|
|
+ const area = chart.chartArea;
|
|
|
+ const active = [];
|
|
|
+ const start = me._drawStart || 0;
|
|
|
+ const count = me._drawCount || (elements.length - start);
|
|
|
+ let i;
|
|
|
+ if (meta.dataset) {
|
|
|
+ meta.dataset.draw(ctx, area, start, count);
|
|
|
+ }
|
|
|
+ for (i = start; i < start + count; ++i) {
|
|
|
+ const element = elements[i];
|
|
|
+ if (element.hidden) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (element.active) {
|
|
|
+ active.push(element);
|
|
|
+ } else {
|
|
|
+ element.draw(ctx, area);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ for (i = 0; i < active.length; ++i) {
|
|
|
+ active[i].draw(ctx, area);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getStyle(index, active) {
|
|
|
+ const mode = active ? 'active' : 'default';
|
|
|
+ return index === undefined && this._cachedMeta.dataset
|
|
|
+ ? this.resolveDatasetElementOptions(mode)
|
|
|
+ : this.resolveDataElementOptions(index || 0, mode);
|
|
|
+ }
|
|
|
+ getContext(index, active, mode) {
|
|
|
+ const me = this;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ let context;
|
|
|
+ if (index >= 0 && index < me._cachedMeta.data.length) {
|
|
|
+ const element = me._cachedMeta.data[index];
|
|
|
+ context = element.$context ||
|
|
|
+ (element.$context = createDataContext(me.getContext(), index, element));
|
|
|
+ context.parsed = me.getParsed(index);
|
|
|
+ context.raw = dataset.data[index];
|
|
|
+ context.index = context.dataIndex = index;
|
|
|
+ } else {
|
|
|
+ context = me.$context ||
|
|
|
+ (me.$context = createDatasetContext(me.chart.getContext(), me.index));
|
|
|
+ context.dataset = dataset;
|
|
|
+ context.index = context.datasetIndex = me.index;
|
|
|
+ }
|
|
|
+ context.active = !!active;
|
|
|
+ context.mode = mode;
|
|
|
+ return context;
|
|
|
+ }
|
|
|
+ resolveDatasetElementOptions(mode) {
|
|
|
+ return this._resolveElementOptions(this.datasetElementType.id, mode);
|
|
|
+ }
|
|
|
+ resolveDataElementOptions(index, mode) {
|
|
|
+ return this._resolveElementOptions(this.dataElementType.id, mode, index);
|
|
|
+ }
|
|
|
+ _resolveElementOptions(elementType, mode = 'default', index) {
|
|
|
+ const me = this;
|
|
|
+ const active = mode === 'active';
|
|
|
+ const cache = me._cachedDataOpts;
|
|
|
+ const cacheKey = elementType + '-' + mode;
|
|
|
+ const cached = cache[cacheKey];
|
|
|
+ const sharing = me.enableOptionSharing && defined(index);
|
|
|
+ if (cached) {
|
|
|
+ return cloneIfNotShared(cached, sharing);
|
|
|
+ }
|
|
|
+ const config = me.chart.config;
|
|
|
+ const scopeKeys = config.datasetElementScopeKeys(me._type, elementType);
|
|
|
+ const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, ''];
|
|
|
+ const scopes = config.getOptionScopes(me.getDataset(), scopeKeys);
|
|
|
+ const names = Object.keys(defaults.elements[elementType]);
|
|
|
+ const context = () => me.getContext(index, active);
|
|
|
+ const values = config.resolveNamedOptions(scopes, names, context, prefixes);
|
|
|
+ if (values.$shared) {
|
|
|
+ values.$shared = sharing;
|
|
|
+ cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing));
|
|
|
+ }
|
|
|
+ return values;
|
|
|
+ }
|
|
|
+ _resolveAnimations(index, transition, active) {
|
|
|
+ const me = this;
|
|
|
+ const chart = me.chart;
|
|
|
+ const cache = me._cachedDataOpts;
|
|
|
+ const cacheKey = `animation-${transition}`;
|
|
|
+ const cached = cache[cacheKey];
|
|
|
+ if (cached) {
|
|
|
+ return cached;
|
|
|
+ }
|
|
|
+ let options;
|
|
|
+ if (chart.options.animation !== false) {
|
|
|
+ const config = me.chart.config;
|
|
|
+ const scopeKeys = config.datasetAnimationScopeKeys(me._type, transition);
|
|
|
+ const scopes = config.getOptionScopes(me.getDataset(), scopeKeys);
|
|
|
+ options = config.createResolver(scopes, me.getContext(index, active, transition));
|
|
|
+ }
|
|
|
+ const animations = new Animations(chart, options && options.animations);
|
|
|
+ if (options && options._cacheable) {
|
|
|
+ cache[cacheKey] = Object.freeze(animations);
|
|
|
+ }
|
|
|
+ return animations;
|
|
|
+ }
|
|
|
+ getSharedOptions(options) {
|
|
|
+ if (!options.$shared) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ return this._sharedOptions || (this._sharedOptions = Object.assign({}, options));
|
|
|
+ }
|
|
|
+ includeOptions(mode, sharedOptions) {
|
|
|
+ return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled;
|
|
|
+ }
|
|
|
+ updateElement(element, index, properties, mode) {
|
|
|
+ if (isDirectUpdateMode(mode)) {
|
|
|
+ Object.assign(element, properties);
|
|
|
+ } else {
|
|
|
+ this._resolveAnimations(index, mode).update(element, properties);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ updateSharedOptions(sharedOptions, mode, newOptions) {
|
|
|
+ if (sharedOptions && !isDirectUpdateMode(mode)) {
|
|
|
+ this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _setStyle(element, index, mode, active) {
|
|
|
+ element.active = active;
|
|
|
+ const options = this.getStyle(index, active);
|
|
|
+ this._resolveAnimations(index, mode, active).update(element, {
|
|
|
+ options: (!active && this.getSharedOptions(options)) || options
|
|
|
+ });
|
|
|
+ }
|
|
|
+ removeHoverStyle(element, datasetIndex, index) {
|
|
|
+ this._setStyle(element, index, 'active', false);
|
|
|
+ }
|
|
|
+ setHoverStyle(element, datasetIndex, index) {
|
|
|
+ this._setStyle(element, index, 'active', true);
|
|
|
+ }
|
|
|
+ _removeDatasetHoverStyle() {
|
|
|
+ const element = this._cachedMeta.dataset;
|
|
|
+ if (element) {
|
|
|
+ this._setStyle(element, undefined, 'active', false);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _setDatasetHoverStyle() {
|
|
|
+ const element = this._cachedMeta.dataset;
|
|
|
+ if (element) {
|
|
|
+ this._setStyle(element, undefined, 'active', true);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _resyncElements(resetNewElements) {
|
|
|
+ const me = this;
|
|
|
+ const data = me._data;
|
|
|
+ const elements = me._cachedMeta.data;
|
|
|
+ for (const [method, arg1, arg2] of me._syncList) {
|
|
|
+ me[method](arg1, arg2);
|
|
|
+ }
|
|
|
+ me._syncList = [];
|
|
|
+ const numMeta = elements.length;
|
|
|
+ const numData = data.length;
|
|
|
+ const count = Math.min(numData, numMeta);
|
|
|
+ if (count) {
|
|
|
+ me.parse(0, count);
|
|
|
+ }
|
|
|
+ if (numData > numMeta) {
|
|
|
+ me._insertElements(numMeta, numData - numMeta, resetNewElements);
|
|
|
+ } else if (numData < numMeta) {
|
|
|
+ me._removeElements(numData, numMeta - numData);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _insertElements(start, count, resetNewElements = true) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const data = meta.data;
|
|
|
+ const end = start + count;
|
|
|
+ let i;
|
|
|
+ const move = (arr) => {
|
|
|
+ arr.length += count;
|
|
|
+ for (i = arr.length - 1; i >= end; i--) {
|
|
|
+ arr[i] = arr[i - count];
|
|
|
+ }
|
|
|
+ };
|
|
|
+ move(data);
|
|
|
+ for (i = start; i < end; ++i) {
|
|
|
+ data[i] = new me.dataElementType();
|
|
|
+ }
|
|
|
+ if (me._parsing) {
|
|
|
+ move(meta._parsed);
|
|
|
+ }
|
|
|
+ me.parse(start, count);
|
|
|
+ if (resetNewElements) {
|
|
|
+ me.updateElements(data, start, count, 'reset');
|
|
|
+ }
|
|
|
+ }
|
|
|
+ updateElements(element, start, count, mode) {}
|
|
|
+ _removeElements(start, count) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ if (me._parsing) {
|
|
|
+ const removed = meta._parsed.splice(start, count);
|
|
|
+ if (meta._stacked) {
|
|
|
+ clearStacks(meta, removed);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ meta.data.splice(start, count);
|
|
|
+ }
|
|
|
+ _sync(args) {
|
|
|
+ if (this._parsing) {
|
|
|
+ this._syncList.push(args);
|
|
|
+ } else {
|
|
|
+ const [method, arg1, arg2] = args;
|
|
|
+ this[method](arg1, arg2);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _onDataPush() {
|
|
|
+ const count = arguments.length;
|
|
|
+ this._sync(['_insertElements', this.getDataset().data.length - count, count]);
|
|
|
+ }
|
|
|
+ _onDataPop() {
|
|
|
+ this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]);
|
|
|
+ }
|
|
|
+ _onDataShift() {
|
|
|
+ this._sync(['_removeElements', 0, 1]);
|
|
|
+ }
|
|
|
+ _onDataSplice(start, count) {
|
|
|
+ this._sync(['_removeElements', start, count]);
|
|
|
+ this._sync(['_insertElements', start, arguments.length - 2]);
|
|
|
+ }
|
|
|
+ _onDataUnshift() {
|
|
|
+ this._sync(['_insertElements', 0, arguments.length]);
|
|
|
+ }
|
|
|
+}
|
|
|
+DatasetController.defaults = {};
|
|
|
+DatasetController.prototype.datasetElementType = null;
|
|
|
+DatasetController.prototype.dataElementType = null;
|
|
|
+
|
|
|
+class Element {
|
|
|
+ constructor() {
|
|
|
+ this.x = undefined;
|
|
|
+ this.y = undefined;
|
|
|
+ this.active = false;
|
|
|
+ this.options = undefined;
|
|
|
+ this.$animations = undefined;
|
|
|
+ }
|
|
|
+ tooltipPosition(useFinalPosition) {
|
|
|
+ const {x, y} = this.getProps(['x', 'y'], useFinalPosition);
|
|
|
+ return {x, y};
|
|
|
+ }
|
|
|
+ hasValue() {
|
|
|
+ return isNumber(this.x) && isNumber(this.y);
|
|
|
+ }
|
|
|
+ getProps(props, final) {
|
|
|
+ const me = this;
|
|
|
+ const anims = this.$animations;
|
|
|
+ if (!final || !anims) {
|
|
|
+ return me;
|
|
|
+ }
|
|
|
+ const ret = {};
|
|
|
+ props.forEach(prop => {
|
|
|
+ ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : me[prop];
|
|
|
+ });
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+}
|
|
|
+Element.defaults = {};
|
|
|
+Element.defaultRoutes = undefined;
|
|
|
+
|
|
|
+const formatters = {
|
|
|
+ values(value) {
|
|
|
+ return isArray(value) ? value : '' + value;
|
|
|
+ },
|
|
|
+ numeric(tickValue, index, ticks) {
|
|
|
+ if (tickValue === 0) {
|
|
|
+ return '0';
|
|
|
+ }
|
|
|
+ const locale = this.chart.options.locale;
|
|
|
+ let notation;
|
|
|
+ let delta = tickValue;
|
|
|
+ if (ticks.length > 1) {
|
|
|
+ const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value));
|
|
|
+ if (maxTick < 1e-4 || maxTick > 1e+15) {
|
|
|
+ notation = 'scientific';
|
|
|
+ }
|
|
|
+ delta = calculateDelta(tickValue, ticks);
|
|
|
+ }
|
|
|
+ const logDelta = log10(Math.abs(delta));
|
|
|
+ const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0);
|
|
|
+ const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal};
|
|
|
+ Object.assign(options, this.options.ticks.format);
|
|
|
+ return formatNumber(tickValue, locale, options);
|
|
|
+ },
|
|
|
+ logarithmic(tickValue, index, ticks) {
|
|
|
+ if (tickValue === 0) {
|
|
|
+ return '0';
|
|
|
+ }
|
|
|
+ const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue))));
|
|
|
+ if (remain === 1 || remain === 2 || remain === 5) {
|
|
|
+ return formatters.numeric.call(this, tickValue, index, ticks);
|
|
|
+ }
|
|
|
+ return '';
|
|
|
+ }
|
|
|
+};
|
|
|
+function calculateDelta(tickValue, ticks) {
|
|
|
+ let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value;
|
|
|
+ if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) {
|
|
|
+ delta = tickValue - Math.floor(tickValue);
|
|
|
+ }
|
|
|
+ return delta;
|
|
|
+}
|
|
|
+var Ticks = {formatters};
|
|
|
+
|
|
|
+defaults.set('scale', {
|
|
|
+ display: true,
|
|
|
+ offset: false,
|
|
|
+ reverse: false,
|
|
|
+ beginAtZero: false,
|
|
|
+ bounds: 'ticks',
|
|
|
+ grace: 0,
|
|
|
+ grid: {
|
|
|
+ display: true,
|
|
|
+ lineWidth: 1,
|
|
|
+ drawBorder: true,
|
|
|
+ drawOnChartArea: true,
|
|
|
+ drawTicks: true,
|
|
|
+ tickLength: 8,
|
|
|
+ tickWidth: (_ctx, options) => options.lineWidth,
|
|
|
+ tickColor: (_ctx, options) => options.color,
|
|
|
+ offset: false,
|
|
|
+ borderDash: [],
|
|
|
+ borderDashOffset: 0.0,
|
|
|
+ borderWidth: 1
|
|
|
+ },
|
|
|
+ title: {
|
|
|
+ display: false,
|
|
|
+ text: '',
|
|
|
+ padding: {
|
|
|
+ top: 4,
|
|
|
+ bottom: 4
|
|
|
+ }
|
|
|
+ },
|
|
|
+ ticks: {
|
|
|
+ minRotation: 0,
|
|
|
+ maxRotation: 50,
|
|
|
+ mirror: false,
|
|
|
+ textStrokeWidth: 0,
|
|
|
+ textStrokeColor: '',
|
|
|
+ padding: 3,
|
|
|
+ display: true,
|
|
|
+ autoSkip: true,
|
|
|
+ autoSkipPadding: 3,
|
|
|
+ labelOffset: 0,
|
|
|
+ callback: Ticks.formatters.values,
|
|
|
+ minor: {},
|
|
|
+ major: {},
|
|
|
+ align: 'center',
|
|
|
+ crossAlign: 'near',
|
|
|
+ showLabelBackdrop: false,
|
|
|
+ backdropColor: 'rgba(255, 255, 255, 0.75)',
|
|
|
+ backdropPadding: 2,
|
|
|
+ }
|
|
|
+});
|
|
|
+defaults.route('scale.ticks', 'color', '', 'color');
|
|
|
+defaults.route('scale.grid', 'color', '', 'borderColor');
|
|
|
+defaults.route('scale.grid', 'borderColor', '', 'borderColor');
|
|
|
+defaults.route('scale.title', 'color', '', 'color');
|
|
|
+defaults.describe('scale', {
|
|
|
+ _fallback: false,
|
|
|
+ _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser',
|
|
|
+ _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash',
|
|
|
+});
|
|
|
+defaults.describe('scales', {
|
|
|
+ _fallback: 'scale',
|
|
|
+});
|
|
|
+defaults.describe('scale.ticks', {
|
|
|
+ _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback',
|
|
|
+ _indexable: (name) => name !== 'backdropPadding',
|
|
|
+});
|
|
|
+
|
|
|
+function autoSkip(scale, ticks) {
|
|
|
+ const tickOpts = scale.options.ticks;
|
|
|
+ const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale);
|
|
|
+ const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];
|
|
|
+ const numMajorIndices = majorIndices.length;
|
|
|
+ const first = majorIndices[0];
|
|
|
+ const last = majorIndices[numMajorIndices - 1];
|
|
|
+ const newTicks = [];
|
|
|
+ if (numMajorIndices > ticksLimit) {
|
|
|
+ skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit);
|
|
|
+ return newTicks;
|
|
|
+ }
|
|
|
+ const spacing = calculateSpacing(majorIndices, ticks, ticksLimit);
|
|
|
+ if (numMajorIndices > 0) {
|
|
|
+ let i, ilen;
|
|
|
+ const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null;
|
|
|
+ skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);
|
|
|
+ for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) {
|
|
|
+ skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]);
|
|
|
+ }
|
|
|
+ skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);
|
|
|
+ return newTicks;
|
|
|
+ }
|
|
|
+ skip(ticks, newTicks, spacing);
|
|
|
+ return newTicks;
|
|
|
+}
|
|
|
+function determineMaxTicks(scale) {
|
|
|
+ const offset = scale.options.offset;
|
|
|
+ const tickLength = scale._tickSize();
|
|
|
+ const maxScale = scale._length / tickLength + (offset ? 0 : 1);
|
|
|
+ const maxChart = scale._maxLength / tickLength;
|
|
|
+ return Math.floor(Math.min(maxScale, maxChart));
|
|
|
+}
|
|
|
+function calculateSpacing(majorIndices, ticks, ticksLimit) {
|
|
|
+ const evenMajorSpacing = getEvenSpacing(majorIndices);
|
|
|
+ const spacing = ticks.length / ticksLimit;
|
|
|
+ if (!evenMajorSpacing) {
|
|
|
+ return Math.max(spacing, 1);
|
|
|
+ }
|
|
|
+ const factors = _factorize(evenMajorSpacing);
|
|
|
+ for (let i = 0, ilen = factors.length - 1; i < ilen; i++) {
|
|
|
+ const factor = factors[i];
|
|
|
+ if (factor > spacing) {
|
|
|
+ return factor;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return Math.max(spacing, 1);
|
|
|
+}
|
|
|
+function getMajorIndices(ticks) {
|
|
|
+ const result = [];
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = ticks.length; i < ilen; i++) {
|
|
|
+ if (ticks[i].major) {
|
|
|
+ result.push(i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function skipMajors(ticks, newTicks, majorIndices, spacing) {
|
|
|
+ let count = 0;
|
|
|
+ let next = majorIndices[0];
|
|
|
+ let i;
|
|
|
+ spacing = Math.ceil(spacing);
|
|
|
+ for (i = 0; i < ticks.length; i++) {
|
|
|
+ if (i === next) {
|
|
|
+ newTicks.push(ticks[i]);
|
|
|
+ count++;
|
|
|
+ next = majorIndices[count * spacing];
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function skip(ticks, newTicks, spacing, majorStart, majorEnd) {
|
|
|
+ const start = valueOrDefault(majorStart, 0);
|
|
|
+ const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length);
|
|
|
+ let count = 0;
|
|
|
+ let length, i, next;
|
|
|
+ spacing = Math.ceil(spacing);
|
|
|
+ if (majorEnd) {
|
|
|
+ length = majorEnd - majorStart;
|
|
|
+ spacing = length / Math.floor(length / spacing);
|
|
|
+ }
|
|
|
+ next = start;
|
|
|
+ while (next < 0) {
|
|
|
+ count++;
|
|
|
+ next = Math.round(start + count * spacing);
|
|
|
+ }
|
|
|
+ for (i = Math.max(start, 0); i < end; i++) {
|
|
|
+ if (i === next) {
|
|
|
+ newTicks.push(ticks[i]);
|
|
|
+ count++;
|
|
|
+ next = Math.round(start + count * spacing);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function getEvenSpacing(arr) {
|
|
|
+ const len = arr.length;
|
|
|
+ let i, diff;
|
|
|
+ if (len < 2) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ for (diff = arr[0], i = 1; i < len; ++i) {
|
|
|
+ if (arr[i] - arr[i - 1] !== diff) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return diff;
|
|
|
+}
|
|
|
+
|
|
|
+const reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align;
|
|
|
+const offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset;
|
|
|
+function sample(arr, numItems) {
|
|
|
+ const result = [];
|
|
|
+ const increment = arr.length / numItems;
|
|
|
+ const len = arr.length;
|
|
|
+ let i = 0;
|
|
|
+ for (; i < len; i += increment) {
|
|
|
+ result.push(arr[Math.floor(i)]);
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function getPixelForGridLine(scale, index, offsetGridLines) {
|
|
|
+ const length = scale.ticks.length;
|
|
|
+ const validIndex = Math.min(index, length - 1);
|
|
|
+ const start = scale._startPixel;
|
|
|
+ const end = scale._endPixel;
|
|
|
+ const epsilon = 1e-6;
|
|
|
+ let lineValue = scale.getPixelForTick(validIndex);
|
|
|
+ let offset;
|
|
|
+ if (offsetGridLines) {
|
|
|
+ if (length === 1) {
|
|
|
+ offset = Math.max(lineValue - start, end - lineValue);
|
|
|
+ } else if (index === 0) {
|
|
|
+ offset = (scale.getPixelForTick(1) - lineValue) / 2;
|
|
|
+ } else {
|
|
|
+ offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2;
|
|
|
+ }
|
|
|
+ lineValue += validIndex < index ? offset : -offset;
|
|
|
+ if (lineValue < start - epsilon || lineValue > end + epsilon) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return lineValue;
|
|
|
+}
|
|
|
+function garbageCollect(caches, length) {
|
|
|
+ each(caches, (cache) => {
|
|
|
+ const gc = cache.gc;
|
|
|
+ const gcLen = gc.length / 2;
|
|
|
+ let i;
|
|
|
+ if (gcLen > length) {
|
|
|
+ for (i = 0; i < gcLen; ++i) {
|
|
|
+ delete cache.data[gc[i]];
|
|
|
+ }
|
|
|
+ gc.splice(0, gcLen);
|
|
|
+ }
|
|
|
+ });
|
|
|
+}
|
|
|
+function getTickMarkLength(options) {
|
|
|
+ return options.drawTicks ? options.tickLength : 0;
|
|
|
+}
|
|
|
+function getTitleHeight(options, fallback) {
|
|
|
+ if (!options.display) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ const font = toFont(options.font, fallback);
|
|
|
+ const padding = toPadding(options.padding);
|
|
|
+ const lines = isArray(options.text) ? options.text.length : 1;
|
|
|
+ return (lines * font.lineHeight) + padding.height;
|
|
|
+}
|
|
|
+function createScaleContext(parent, scale) {
|
|
|
+ return Object.assign(Object.create(parent), {
|
|
|
+ scale,
|
|
|
+ type: 'scale'
|
|
|
+ });
|
|
|
+}
|
|
|
+function createTickContext(parent, index, tick) {
|
|
|
+ return Object.assign(Object.create(parent), {
|
|
|
+ tick,
|
|
|
+ index,
|
|
|
+ type: 'tick'
|
|
|
+ });
|
|
|
+}
|
|
|
+function titleAlign(align, position, reverse) {
|
|
|
+ let ret = _toLeftRightCenter(align);
|
|
|
+ if ((reverse && position !== 'right') || (!reverse && position === 'right')) {
|
|
|
+ ret = reverseAlign(ret);
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+function titleArgs(scale, offset, position, align) {
|
|
|
+ const {top, left, bottom, right, chart} = scale;
|
|
|
+ const {chartArea, scales} = chart;
|
|
|
+ let rotation = 0;
|
|
|
+ let maxWidth, titleX, titleY;
|
|
|
+ const height = bottom - top;
|
|
|
+ const width = right - left;
|
|
|
+ if (scale.isHorizontal()) {
|
|
|
+ titleX = _alignStartEnd(align, left, right);
|
|
|
+ if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ titleY = scales[positionAxisID].getPixelForValue(value) + height - offset;
|
|
|
+ } else if (position === 'center') {
|
|
|
+ titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset;
|
|
|
+ } else {
|
|
|
+ titleY = offsetFromEdge(scale, position, offset);
|
|
|
+ }
|
|
|
+ maxWidth = right - left;
|
|
|
+ } else {
|
|
|
+ if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ titleX = scales[positionAxisID].getPixelForValue(value) - width + offset;
|
|
|
+ } else if (position === 'center') {
|
|
|
+ titleX = (chartArea.left + chartArea.right) / 2 - width + offset;
|
|
|
+ } else {
|
|
|
+ titleX = offsetFromEdge(scale, position, offset);
|
|
|
+ }
|
|
|
+ titleY = _alignStartEnd(align, bottom, top);
|
|
|
+ rotation = position === 'left' ? -HALF_PI : HALF_PI;
|
|
|
+ }
|
|
|
+ return {titleX, titleY, maxWidth, rotation};
|
|
|
+}
|
|
|
+class Scale extends Element {
|
|
|
+ constructor(cfg) {
|
|
|
+ super();
|
|
|
+ this.id = cfg.id;
|
|
|
+ this.type = cfg.type;
|
|
|
+ this.options = undefined;
|
|
|
+ this.ctx = cfg.ctx;
|
|
|
+ this.chart = cfg.chart;
|
|
|
+ this.top = undefined;
|
|
|
+ this.bottom = undefined;
|
|
|
+ this.left = undefined;
|
|
|
+ this.right = undefined;
|
|
|
+ this.width = undefined;
|
|
|
+ this.height = undefined;
|
|
|
+ this._margins = {
|
|
|
+ left: 0,
|
|
|
+ right: 0,
|
|
|
+ top: 0,
|
|
|
+ bottom: 0
|
|
|
+ };
|
|
|
+ this.maxWidth = undefined;
|
|
|
+ this.maxHeight = undefined;
|
|
|
+ this.paddingTop = undefined;
|
|
|
+ this.paddingBottom = undefined;
|
|
|
+ this.paddingLeft = undefined;
|
|
|
+ this.paddingRight = undefined;
|
|
|
+ this.axis = undefined;
|
|
|
+ this.labelRotation = undefined;
|
|
|
+ this.min = undefined;
|
|
|
+ this.max = undefined;
|
|
|
+ this._range = undefined;
|
|
|
+ this.ticks = [];
|
|
|
+ this._gridLineItems = null;
|
|
|
+ this._labelItems = null;
|
|
|
+ this._labelSizes = null;
|
|
|
+ this._length = 0;
|
|
|
+ this._maxLength = 0;
|
|
|
+ this._longestTextCache = {};
|
|
|
+ this._startPixel = undefined;
|
|
|
+ this._endPixel = undefined;
|
|
|
+ this._reversePixels = false;
|
|
|
+ this._userMax = undefined;
|
|
|
+ this._userMin = undefined;
|
|
|
+ this._suggestedMax = undefined;
|
|
|
+ this._suggestedMin = undefined;
|
|
|
+ this._ticksLength = 0;
|
|
|
+ this._borderValue = 0;
|
|
|
+ this._cache = {};
|
|
|
+ this._dataLimitsCached = false;
|
|
|
+ this.$context = undefined;
|
|
|
+ }
|
|
|
+ init(options) {
|
|
|
+ const me = this;
|
|
|
+ me.options = options.setContext(me.getContext());
|
|
|
+ me.axis = options.axis;
|
|
|
+ me._userMin = me.parse(options.min);
|
|
|
+ me._userMax = me.parse(options.max);
|
|
|
+ me._suggestedMin = me.parse(options.suggestedMin);
|
|
|
+ me._suggestedMax = me.parse(options.suggestedMax);
|
|
|
+ }
|
|
|
+ parse(raw, index) {
|
|
|
+ return raw;
|
|
|
+ }
|
|
|
+ getUserBounds() {
|
|
|
+ let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this;
|
|
|
+ _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY);
|
|
|
+ _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY);
|
|
|
+ _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY);
|
|
|
+ _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY);
|
|
|
+ return {
|
|
|
+ min: finiteOrDefault(_userMin, _suggestedMin),
|
|
|
+ max: finiteOrDefault(_userMax, _suggestedMax),
|
|
|
+ minDefined: isNumberFinite(_userMin),
|
|
|
+ maxDefined: isNumberFinite(_userMax)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getMinMax(canStack) {
|
|
|
+ const me = this;
|
|
|
+ let {min, max, minDefined, maxDefined} = me.getUserBounds();
|
|
|
+ let range;
|
|
|
+ if (minDefined && maxDefined) {
|
|
|
+ return {min, max};
|
|
|
+ }
|
|
|
+ const metas = me.getMatchingVisibleMetas();
|
|
|
+ for (let i = 0, ilen = metas.length; i < ilen; ++i) {
|
|
|
+ range = metas[i].controller.getMinMax(me, canStack);
|
|
|
+ if (!minDefined) {
|
|
|
+ min = Math.min(min, range.min);
|
|
|
+ }
|
|
|
+ if (!maxDefined) {
|
|
|
+ max = Math.max(max, range.max);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ min: finiteOrDefault(min, finiteOrDefault(max, min)),
|
|
|
+ max: finiteOrDefault(max, finiteOrDefault(min, max))
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getPadding() {
|
|
|
+ const me = this;
|
|
|
+ return {
|
|
|
+ left: me.paddingLeft || 0,
|
|
|
+ top: me.paddingTop || 0,
|
|
|
+ right: me.paddingRight || 0,
|
|
|
+ bottom: me.paddingBottom || 0
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getTicks() {
|
|
|
+ return this.ticks;
|
|
|
+ }
|
|
|
+ getLabels() {
|
|
|
+ const data = this.chart.data;
|
|
|
+ return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];
|
|
|
+ }
|
|
|
+ beforeLayout() {
|
|
|
+ this._cache = {};
|
|
|
+ this._dataLimitsCached = false;
|
|
|
+ }
|
|
|
+ beforeUpdate() {
|
|
|
+ callback(this.options.beforeUpdate, [this]);
|
|
|
+ }
|
|
|
+ update(maxWidth, maxHeight, margins) {
|
|
|
+ const me = this;
|
|
|
+ const tickOpts = me.options.ticks;
|
|
|
+ const sampleSize = tickOpts.sampleSize;
|
|
|
+ me.beforeUpdate();
|
|
|
+ me.maxWidth = maxWidth;
|
|
|
+ me.maxHeight = maxHeight;
|
|
|
+ me._margins = margins = Object.assign({
|
|
|
+ left: 0,
|
|
|
+ right: 0,
|
|
|
+ top: 0,
|
|
|
+ bottom: 0
|
|
|
+ }, margins);
|
|
|
+ me.ticks = null;
|
|
|
+ me._labelSizes = null;
|
|
|
+ me._gridLineItems = null;
|
|
|
+ me._labelItems = null;
|
|
|
+ me.beforeSetDimensions();
|
|
|
+ me.setDimensions();
|
|
|
+ me.afterSetDimensions();
|
|
|
+ me._maxLength = me.isHorizontal()
|
|
|
+ ? me.width + margins.left + margins.right
|
|
|
+ : me.height + margins.top + margins.bottom;
|
|
|
+ if (!me._dataLimitsCached) {
|
|
|
+ me.beforeDataLimits();
|
|
|
+ me.determineDataLimits();
|
|
|
+ me.afterDataLimits();
|
|
|
+ me._range = _addGrace(me, me.options.grace);
|
|
|
+ me._dataLimitsCached = true;
|
|
|
+ }
|
|
|
+ me.beforeBuildTicks();
|
|
|
+ me.ticks = me.buildTicks() || [];
|
|
|
+ me.afterBuildTicks();
|
|
|
+ const samplingEnabled = sampleSize < me.ticks.length;
|
|
|
+ me._convertTicksToLabels(samplingEnabled ? sample(me.ticks, sampleSize) : me.ticks);
|
|
|
+ me.configure();
|
|
|
+ me.beforeCalculateLabelRotation();
|
|
|
+ me.calculateLabelRotation();
|
|
|
+ me.afterCalculateLabelRotation();
|
|
|
+ if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) {
|
|
|
+ me.ticks = autoSkip(me, me.ticks);
|
|
|
+ me._labelSizes = null;
|
|
|
+ }
|
|
|
+ if (samplingEnabled) {
|
|
|
+ me._convertTicksToLabels(me.ticks);
|
|
|
+ }
|
|
|
+ me.beforeFit();
|
|
|
+ me.fit();
|
|
|
+ me.afterFit();
|
|
|
+ me.afterUpdate();
|
|
|
+ }
|
|
|
+ configure() {
|
|
|
+ const me = this;
|
|
|
+ let reversePixels = me.options.reverse;
|
|
|
+ let startPixel, endPixel;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ startPixel = me.left;
|
|
|
+ endPixel = me.right;
|
|
|
+ } else {
|
|
|
+ startPixel = me.top;
|
|
|
+ endPixel = me.bottom;
|
|
|
+ reversePixels = !reversePixels;
|
|
|
+ }
|
|
|
+ me._startPixel = startPixel;
|
|
|
+ me._endPixel = endPixel;
|
|
|
+ me._reversePixels = reversePixels;
|
|
|
+ me._length = endPixel - startPixel;
|
|
|
+ me._alignToPixels = me.options.alignToPixels;
|
|
|
+ }
|
|
|
+ afterUpdate() {
|
|
|
+ callback(this.options.afterUpdate, [this]);
|
|
|
+ }
|
|
|
+ beforeSetDimensions() {
|
|
|
+ callback(this.options.beforeSetDimensions, [this]);
|
|
|
+ }
|
|
|
+ setDimensions() {
|
|
|
+ const me = this;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ me.width = me.maxWidth;
|
|
|
+ me.left = 0;
|
|
|
+ me.right = me.width;
|
|
|
+ } else {
|
|
|
+ me.height = me.maxHeight;
|
|
|
+ me.top = 0;
|
|
|
+ me.bottom = me.height;
|
|
|
+ }
|
|
|
+ me.paddingLeft = 0;
|
|
|
+ me.paddingTop = 0;
|
|
|
+ me.paddingRight = 0;
|
|
|
+ me.paddingBottom = 0;
|
|
|
+ }
|
|
|
+ afterSetDimensions() {
|
|
|
+ callback(this.options.afterSetDimensions, [this]);
|
|
|
+ }
|
|
|
+ _callHooks(name) {
|
|
|
+ const me = this;
|
|
|
+ me.chart.notifyPlugins(name, me.getContext());
|
|
|
+ callback(me.options[name], [me]);
|
|
|
+ }
|
|
|
+ beforeDataLimits() {
|
|
|
+ this._callHooks('beforeDataLimits');
|
|
|
+ }
|
|
|
+ determineDataLimits() {}
|
|
|
+ afterDataLimits() {
|
|
|
+ this._callHooks('afterDataLimits');
|
|
|
+ }
|
|
|
+ beforeBuildTicks() {
|
|
|
+ this._callHooks('beforeBuildTicks');
|
|
|
+ }
|
|
|
+ buildTicks() {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ afterBuildTicks() {
|
|
|
+ this._callHooks('afterBuildTicks');
|
|
|
+ }
|
|
|
+ beforeTickToLabelConversion() {
|
|
|
+ callback(this.options.beforeTickToLabelConversion, [this]);
|
|
|
+ }
|
|
|
+ generateTickLabels(ticks) {
|
|
|
+ const me = this;
|
|
|
+ const tickOpts = me.options.ticks;
|
|
|
+ let i, ilen, tick;
|
|
|
+ for (i = 0, ilen = ticks.length; i < ilen; i++) {
|
|
|
+ tick = ticks[i];
|
|
|
+ tick.label = callback(tickOpts.callback, [tick.value, i, ticks], me);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ afterTickToLabelConversion() {
|
|
|
+ callback(this.options.afterTickToLabelConversion, [this]);
|
|
|
+ }
|
|
|
+ beforeCalculateLabelRotation() {
|
|
|
+ callback(this.options.beforeCalculateLabelRotation, [this]);
|
|
|
+ }
|
|
|
+ calculateLabelRotation() {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const tickOpts = options.ticks;
|
|
|
+ const numTicks = me.ticks.length;
|
|
|
+ const minRotation = tickOpts.minRotation || 0;
|
|
|
+ const maxRotation = tickOpts.maxRotation;
|
|
|
+ let labelRotation = minRotation;
|
|
|
+ let tickWidth, maxHeight, maxLabelDiagonal;
|
|
|
+ if (!me._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !me.isHorizontal()) {
|
|
|
+ me.labelRotation = minRotation;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const labelSizes = me._getLabelSizes();
|
|
|
+ const maxLabelWidth = labelSizes.widest.width;
|
|
|
+ const maxLabelHeight = labelSizes.highest.height;
|
|
|
+ const maxWidth = _limitValue(me.chart.width - maxLabelWidth, 0, me.maxWidth);
|
|
|
+ tickWidth = options.offset ? me.maxWidth / numTicks : maxWidth / (numTicks - 1);
|
|
|
+ if (maxLabelWidth + 6 > tickWidth) {
|
|
|
+ tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1));
|
|
|
+ maxHeight = me.maxHeight - getTickMarkLength(options.grid)
|
|
|
+ - tickOpts.padding - getTitleHeight(options.title, me.chart.options.font);
|
|
|
+ maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);
|
|
|
+ labelRotation = toDegrees(Math.min(
|
|
|
+ Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)),
|
|
|
+ Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1))
|
|
|
+ ));
|
|
|
+ labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));
|
|
|
+ }
|
|
|
+ me.labelRotation = labelRotation;
|
|
|
+ }
|
|
|
+ afterCalculateLabelRotation() {
|
|
|
+ callback(this.options.afterCalculateLabelRotation, [this]);
|
|
|
+ }
|
|
|
+ beforeFit() {
|
|
|
+ callback(this.options.beforeFit, [this]);
|
|
|
+ }
|
|
|
+ fit() {
|
|
|
+ const me = this;
|
|
|
+ const minSize = {
|
|
|
+ width: 0,
|
|
|
+ height: 0
|
|
|
+ };
|
|
|
+ const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = me;
|
|
|
+ const display = me._isVisible();
|
|
|
+ const isHorizontal = me.isHorizontal();
|
|
|
+ if (display) {
|
|
|
+ const titleHeight = getTitleHeight(titleOpts, chart.options.font);
|
|
|
+ if (isHorizontal) {
|
|
|
+ minSize.width = me.maxWidth;
|
|
|
+ minSize.height = getTickMarkLength(gridOpts) + titleHeight;
|
|
|
+ } else {
|
|
|
+ minSize.height = me.maxHeight;
|
|
|
+ minSize.width = getTickMarkLength(gridOpts) + titleHeight;
|
|
|
+ }
|
|
|
+ if (tickOpts.display && me.ticks.length) {
|
|
|
+ const {first, last, widest, highest} = me._getLabelSizes();
|
|
|
+ const tickPadding = tickOpts.padding * 2;
|
|
|
+ const angleRadians = toRadians(me.labelRotation);
|
|
|
+ const cos = Math.cos(angleRadians);
|
|
|
+ const sin = Math.sin(angleRadians);
|
|
|
+ if (isHorizontal) {
|
|
|
+ const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height;
|
|
|
+ minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
|
|
|
+ } else {
|
|
|
+ const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height;
|
|
|
+ minSize.width = Math.min(me.maxWidth, minSize.width + labelWidth + tickPadding);
|
|
|
+ }
|
|
|
+ me._calculatePadding(first, last, sin, cos);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me._handleMargins();
|
|
|
+ if (isHorizontal) {
|
|
|
+ me.width = me._length = chart.width - me._margins.left - me._margins.right;
|
|
|
+ me.height = minSize.height;
|
|
|
+ } else {
|
|
|
+ me.width = minSize.width;
|
|
|
+ me.height = me._length = chart.height - me._margins.top - me._margins.bottom;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _calculatePadding(first, last, sin, cos) {
|
|
|
+ const me = this;
|
|
|
+ const {ticks: {align, padding}, position} = me.options;
|
|
|
+ const isRotated = me.labelRotation !== 0;
|
|
|
+ const labelsBelowTicks = position !== 'top' && me.axis === 'x';
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ const offsetLeft = me.getPixelForTick(0) - me.left;
|
|
|
+ const offsetRight = me.right - me.getPixelForTick(me.ticks.length - 1);
|
|
|
+ let paddingLeft = 0;
|
|
|
+ let paddingRight = 0;
|
|
|
+ if (isRotated) {
|
|
|
+ if (labelsBelowTicks) {
|
|
|
+ paddingLeft = cos * first.width;
|
|
|
+ paddingRight = sin * last.height;
|
|
|
+ } else {
|
|
|
+ paddingLeft = sin * first.height;
|
|
|
+ paddingRight = cos * last.width;
|
|
|
+ }
|
|
|
+ } else if (align === 'start') {
|
|
|
+ paddingRight = last.width;
|
|
|
+ } else if (align === 'end') {
|
|
|
+ paddingLeft = first.width;
|
|
|
+ } else {
|
|
|
+ paddingLeft = first.width / 2;
|
|
|
+ paddingRight = last.width / 2;
|
|
|
+ }
|
|
|
+ me.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * me.width / (me.width - offsetLeft), 0);
|
|
|
+ me.paddingRight = Math.max((paddingRight - offsetRight + padding) * me.width / (me.width - offsetRight), 0);
|
|
|
+ } else {
|
|
|
+ let paddingTop = last.height / 2;
|
|
|
+ let paddingBottom = first.height / 2;
|
|
|
+ if (align === 'start') {
|
|
|
+ paddingTop = 0;
|
|
|
+ paddingBottom = first.height;
|
|
|
+ } else if (align === 'end') {
|
|
|
+ paddingTop = last.height;
|
|
|
+ paddingBottom = 0;
|
|
|
+ }
|
|
|
+ me.paddingTop = paddingTop + padding;
|
|
|
+ me.paddingBottom = paddingBottom + padding;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _handleMargins() {
|
|
|
+ const me = this;
|
|
|
+ if (me._margins) {
|
|
|
+ me._margins.left = Math.max(me.paddingLeft, me._margins.left);
|
|
|
+ me._margins.top = Math.max(me.paddingTop, me._margins.top);
|
|
|
+ me._margins.right = Math.max(me.paddingRight, me._margins.right);
|
|
|
+ me._margins.bottom = Math.max(me.paddingBottom, me._margins.bottom);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ afterFit() {
|
|
|
+ callback(this.options.afterFit, [this]);
|
|
|
+ }
|
|
|
+ isHorizontal() {
|
|
|
+ const {axis, position} = this.options;
|
|
|
+ return position === 'top' || position === 'bottom' || axis === 'x';
|
|
|
+ }
|
|
|
+ isFullSize() {
|
|
|
+ return this.options.fullSize;
|
|
|
+ }
|
|
|
+ _convertTicksToLabels(ticks) {
|
|
|
+ const me = this;
|
|
|
+ me.beforeTickToLabelConversion();
|
|
|
+ me.generateTickLabels(ticks);
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = ticks.length; i < ilen; i++) {
|
|
|
+ if (isNullOrUndef(ticks[i].label)) {
|
|
|
+ ticks.splice(i, 1);
|
|
|
+ ilen--;
|
|
|
+ i--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me.afterTickToLabelConversion();
|
|
|
+ }
|
|
|
+ _getLabelSizes() {
|
|
|
+ const me = this;
|
|
|
+ let labelSizes = me._labelSizes;
|
|
|
+ if (!labelSizes) {
|
|
|
+ const sampleSize = me.options.ticks.sampleSize;
|
|
|
+ let ticks = me.ticks;
|
|
|
+ if (sampleSize < ticks.length) {
|
|
|
+ ticks = sample(ticks, sampleSize);
|
|
|
+ }
|
|
|
+ me._labelSizes = labelSizes = me._computeLabelSizes(ticks, ticks.length);
|
|
|
+ }
|
|
|
+ return labelSizes;
|
|
|
+ }
|
|
|
+ _computeLabelSizes(ticks, length) {
|
|
|
+ const {ctx, _longestTextCache: caches} = this;
|
|
|
+ const widths = [];
|
|
|
+ const heights = [];
|
|
|
+ let widestLabelSize = 0;
|
|
|
+ let highestLabelSize = 0;
|
|
|
+ let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel;
|
|
|
+ for (i = 0; i < length; ++i) {
|
|
|
+ label = ticks[i].label;
|
|
|
+ tickFont = this._resolveTickFontOptions(i);
|
|
|
+ ctx.font = fontString = tickFont.string;
|
|
|
+ cache = caches[fontString] = caches[fontString] || {data: {}, gc: []};
|
|
|
+ lineHeight = tickFont.lineHeight;
|
|
|
+ width = height = 0;
|
|
|
+ if (!isNullOrUndef(label) && !isArray(label)) {
|
|
|
+ width = _measureText(ctx, cache.data, cache.gc, width, label);
|
|
|
+ height = lineHeight;
|
|
|
+ } else if (isArray(label)) {
|
|
|
+ for (j = 0, jlen = label.length; j < jlen; ++j) {
|
|
|
+ nestedLabel = label[j];
|
|
|
+ if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {
|
|
|
+ width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel);
|
|
|
+ height += lineHeight;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ widths.push(width);
|
|
|
+ heights.push(height);
|
|
|
+ widestLabelSize = Math.max(width, widestLabelSize);
|
|
|
+ highestLabelSize = Math.max(height, highestLabelSize);
|
|
|
+ }
|
|
|
+ garbageCollect(caches, length);
|
|
|
+ const widest = widths.indexOf(widestLabelSize);
|
|
|
+ const highest = heights.indexOf(highestLabelSize);
|
|
|
+ const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0});
|
|
|
+ return {
|
|
|
+ first: valueAt(0),
|
|
|
+ last: valueAt(length - 1),
|
|
|
+ widest: valueAt(widest),
|
|
|
+ highest: valueAt(highest),
|
|
|
+ widths,
|
|
|
+ heights,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getLabelForValue(value) {
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ getPixelForValue(value, index) {
|
|
|
+ return NaN;
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {}
|
|
|
+ getPixelForTick(index) {
|
|
|
+ const ticks = this.ticks;
|
|
|
+ if (index < 0 || index > ticks.length - 1) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ return this.getPixelForValue(ticks[index].value);
|
|
|
+ }
|
|
|
+ getPixelForDecimal(decimal) {
|
|
|
+ const me = this;
|
|
|
+ if (me._reversePixels) {
|
|
|
+ decimal = 1 - decimal;
|
|
|
+ }
|
|
|
+ const pixel = me._startPixel + decimal * me._length;
|
|
|
+ return _int16Range(me._alignToPixels ? _alignPixel(me.chart, pixel, 0) : pixel);
|
|
|
+ }
|
|
|
+ getDecimalForPixel(pixel) {
|
|
|
+ const decimal = (pixel - this._startPixel) / this._length;
|
|
|
+ return this._reversePixels ? 1 - decimal : decimal;
|
|
|
+ }
|
|
|
+ getBasePixel() {
|
|
|
+ return this.getPixelForValue(this.getBaseValue());
|
|
|
+ }
|
|
|
+ getBaseValue() {
|
|
|
+ const {min, max} = this;
|
|
|
+ return min < 0 && max < 0 ? max :
|
|
|
+ min > 0 && max > 0 ? min :
|
|
|
+ 0;
|
|
|
+ }
|
|
|
+ getContext(index) {
|
|
|
+ const me = this;
|
|
|
+ const ticks = me.ticks || [];
|
|
|
+ if (index >= 0 && index < ticks.length) {
|
|
|
+ const tick = ticks[index];
|
|
|
+ return tick.$context ||
|
|
|
+ (tick.$context = createTickContext(me.getContext(), index, tick));
|
|
|
+ }
|
|
|
+ return me.$context ||
|
|
|
+ (me.$context = createScaleContext(me.chart.getContext(), me));
|
|
|
+ }
|
|
|
+ _tickSize() {
|
|
|
+ const me = this;
|
|
|
+ const optionTicks = me.options.ticks;
|
|
|
+ const rot = toRadians(me.labelRotation);
|
|
|
+ const cos = Math.abs(Math.cos(rot));
|
|
|
+ const sin = Math.abs(Math.sin(rot));
|
|
|
+ const labelSizes = me._getLabelSizes();
|
|
|
+ const padding = optionTicks.autoSkipPadding || 0;
|
|
|
+ const w = labelSizes ? labelSizes.widest.width + padding : 0;
|
|
|
+ const h = labelSizes ? labelSizes.highest.height + padding : 0;
|
|
|
+ return me.isHorizontal()
|
|
|
+ ? h * cos > w * sin ? w / cos : h / sin
|
|
|
+ : h * sin < w * cos ? h / cos : w / sin;
|
|
|
+ }
|
|
|
+ _isVisible() {
|
|
|
+ const display = this.options.display;
|
|
|
+ if (display !== 'auto') {
|
|
|
+ return !!display;
|
|
|
+ }
|
|
|
+ return this.getMatchingVisibleMetas().length > 0;
|
|
|
+ }
|
|
|
+ _computeGridLineItems(chartArea) {
|
|
|
+ const me = this;
|
|
|
+ const axis = me.axis;
|
|
|
+ const chart = me.chart;
|
|
|
+ const options = me.options;
|
|
|
+ const {grid, position} = options;
|
|
|
+ const offset = grid.offset;
|
|
|
+ const isHorizontal = me.isHorizontal();
|
|
|
+ const ticks = me.ticks;
|
|
|
+ const ticksLength = ticks.length + (offset ? 1 : 0);
|
|
|
+ const tl = getTickMarkLength(grid);
|
|
|
+ const items = [];
|
|
|
+ const borderOpts = grid.setContext(me.getContext());
|
|
|
+ const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0;
|
|
|
+ const axisHalfWidth = axisWidth / 2;
|
|
|
+ const alignBorderValue = function(pixel) {
|
|
|
+ return _alignPixel(chart, pixel, axisWidth);
|
|
|
+ };
|
|
|
+ let borderValue, i, lineValue, alignedLineValue;
|
|
|
+ let tx1, ty1, tx2, ty2, x1, y1, x2, y2;
|
|
|
+ if (position === 'top') {
|
|
|
+ borderValue = alignBorderValue(me.bottom);
|
|
|
+ ty1 = me.bottom - tl;
|
|
|
+ ty2 = borderValue - axisHalfWidth;
|
|
|
+ y1 = alignBorderValue(chartArea.top) + axisHalfWidth;
|
|
|
+ y2 = chartArea.bottom;
|
|
|
+ } else if (position === 'bottom') {
|
|
|
+ borderValue = alignBorderValue(me.top);
|
|
|
+ y1 = chartArea.top;
|
|
|
+ y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;
|
|
|
+ ty1 = borderValue + axisHalfWidth;
|
|
|
+ ty2 = me.top + tl;
|
|
|
+ } else if (position === 'left') {
|
|
|
+ borderValue = alignBorderValue(me.right);
|
|
|
+ tx1 = me.right - tl;
|
|
|
+ tx2 = borderValue - axisHalfWidth;
|
|
|
+ x1 = alignBorderValue(chartArea.left) + axisHalfWidth;
|
|
|
+ x2 = chartArea.right;
|
|
|
+ } else if (position === 'right') {
|
|
|
+ borderValue = alignBorderValue(me.left);
|
|
|
+ x1 = chartArea.left;
|
|
|
+ x2 = alignBorderValue(chartArea.right) - axisHalfWidth;
|
|
|
+ tx1 = borderValue + axisHalfWidth;
|
|
|
+ tx2 = me.left + tl;
|
|
|
+ } else if (axis === 'x') {
|
|
|
+ if (position === 'center') {
|
|
|
+ borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5);
|
|
|
+ } else if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ borderValue = alignBorderValue(me.chart.scales[positionAxisID].getPixelForValue(value));
|
|
|
+ }
|
|
|
+ y1 = chartArea.top;
|
|
|
+ y2 = chartArea.bottom;
|
|
|
+ ty1 = borderValue + axisHalfWidth;
|
|
|
+ ty2 = ty1 + tl;
|
|
|
+ } else if (axis === 'y') {
|
|
|
+ if (position === 'center') {
|
|
|
+ borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2);
|
|
|
+ } else if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ borderValue = alignBorderValue(me.chart.scales[positionAxisID].getPixelForValue(value));
|
|
|
+ }
|
|
|
+ tx1 = borderValue - axisHalfWidth;
|
|
|
+ tx2 = tx1 - tl;
|
|
|
+ x1 = chartArea.left;
|
|
|
+ x2 = chartArea.right;
|
|
|
+ }
|
|
|
+ const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength);
|
|
|
+ const step = Math.max(1, Math.ceil(ticksLength / limit));
|
|
|
+ for (i = 0; i < ticksLength; i += step) {
|
|
|
+ const optsAtIndex = grid.setContext(me.getContext(i));
|
|
|
+ const lineWidth = optsAtIndex.lineWidth;
|
|
|
+ const lineColor = optsAtIndex.color;
|
|
|
+ const borderDash = grid.borderDash || [];
|
|
|
+ const borderDashOffset = optsAtIndex.borderDashOffset;
|
|
|
+ const tickWidth = optsAtIndex.tickWidth;
|
|
|
+ const tickColor = optsAtIndex.tickColor;
|
|
|
+ const tickBorderDash = optsAtIndex.tickBorderDash || [];
|
|
|
+ const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset;
|
|
|
+ lineValue = getPixelForGridLine(me, i, offset);
|
|
|
+ if (lineValue === undefined) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ alignedLineValue = _alignPixel(chart, lineValue, lineWidth);
|
|
|
+ if (isHorizontal) {
|
|
|
+ tx1 = tx2 = x1 = x2 = alignedLineValue;
|
|
|
+ } else {
|
|
|
+ ty1 = ty2 = y1 = y2 = alignedLineValue;
|
|
|
+ }
|
|
|
+ items.push({
|
|
|
+ tx1,
|
|
|
+ ty1,
|
|
|
+ tx2,
|
|
|
+ ty2,
|
|
|
+ x1,
|
|
|
+ y1,
|
|
|
+ x2,
|
|
|
+ y2,
|
|
|
+ width: lineWidth,
|
|
|
+ color: lineColor,
|
|
|
+ borderDash,
|
|
|
+ borderDashOffset,
|
|
|
+ tickWidth,
|
|
|
+ tickColor,
|
|
|
+ tickBorderDash,
|
|
|
+ tickBorderDashOffset,
|
|
|
+ });
|
|
|
+ }
|
|
|
+ me._ticksLength = ticksLength;
|
|
|
+ me._borderValue = borderValue;
|
|
|
+ return items;
|
|
|
+ }
|
|
|
+ _computeLabelItems(chartArea) {
|
|
|
+ const me = this;
|
|
|
+ const axis = me.axis;
|
|
|
+ const options = me.options;
|
|
|
+ const {position, ticks: optionTicks} = options;
|
|
|
+ const isHorizontal = me.isHorizontal();
|
|
|
+ const ticks = me.ticks;
|
|
|
+ const {align, crossAlign, padding, mirror} = optionTicks;
|
|
|
+ const tl = getTickMarkLength(options.grid);
|
|
|
+ const tickAndPadding = tl + padding;
|
|
|
+ const hTickAndPadding = mirror ? -padding : tickAndPadding;
|
|
|
+ const rotation = -toRadians(me.labelRotation);
|
|
|
+ const items = [];
|
|
|
+ let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;
|
|
|
+ let textBaseline = 'middle';
|
|
|
+ if (position === 'top') {
|
|
|
+ y = me.bottom - hTickAndPadding;
|
|
|
+ textAlign = me._getXAxisLabelAlignment();
|
|
|
+ } else if (position === 'bottom') {
|
|
|
+ y = me.top + hTickAndPadding;
|
|
|
+ textAlign = me._getXAxisLabelAlignment();
|
|
|
+ } else if (position === 'left') {
|
|
|
+ const ret = me._getYAxisLabelAlignment(tl);
|
|
|
+ textAlign = ret.textAlign;
|
|
|
+ x = ret.x;
|
|
|
+ } else if (position === 'right') {
|
|
|
+ const ret = me._getYAxisLabelAlignment(tl);
|
|
|
+ textAlign = ret.textAlign;
|
|
|
+ x = ret.x;
|
|
|
+ } else if (axis === 'x') {
|
|
|
+ if (position === 'center') {
|
|
|
+ y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding;
|
|
|
+ } else if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ y = me.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding;
|
|
|
+ }
|
|
|
+ textAlign = me._getXAxisLabelAlignment();
|
|
|
+ } else if (axis === 'y') {
|
|
|
+ if (position === 'center') {
|
|
|
+ x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding;
|
|
|
+ } else if (isObject(position)) {
|
|
|
+ const positionAxisID = Object.keys(position)[0];
|
|
|
+ const value = position[positionAxisID];
|
|
|
+ x = me.chart.scales[positionAxisID].getPixelForValue(value);
|
|
|
+ }
|
|
|
+ textAlign = me._getYAxisLabelAlignment(tl).textAlign;
|
|
|
+ }
|
|
|
+ if (axis === 'y') {
|
|
|
+ if (align === 'start') {
|
|
|
+ textBaseline = 'top';
|
|
|
+ } else if (align === 'end') {
|
|
|
+ textBaseline = 'bottom';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ const labelSizes = me._getLabelSizes();
|
|
|
+ for (i = 0, ilen = ticks.length; i < ilen; ++i) {
|
|
|
+ tick = ticks[i];
|
|
|
+ label = tick.label;
|
|
|
+ const optsAtIndex = optionTicks.setContext(me.getContext(i));
|
|
|
+ pixel = me.getPixelForTick(i) + optionTicks.labelOffset;
|
|
|
+ font = me._resolveTickFontOptions(i);
|
|
|
+ lineHeight = font.lineHeight;
|
|
|
+ lineCount = isArray(label) ? label.length : 1;
|
|
|
+ const halfCount = lineCount / 2;
|
|
|
+ const color = optsAtIndex.color;
|
|
|
+ const strokeColor = optsAtIndex.textStrokeColor;
|
|
|
+ const strokeWidth = optsAtIndex.textStrokeWidth;
|
|
|
+ if (isHorizontal) {
|
|
|
+ x = pixel;
|
|
|
+ if (position === 'top') {
|
|
|
+ if (crossAlign === 'near' || rotation !== 0) {
|
|
|
+ textOffset = -lineCount * lineHeight + lineHeight / 2;
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight;
|
|
|
+ } else {
|
|
|
+ textOffset = -labelSizes.highest.height + lineHeight / 2;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ if (crossAlign === 'near' || rotation !== 0) {
|
|
|
+ textOffset = lineHeight / 2;
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight;
|
|
|
+ } else {
|
|
|
+ textOffset = labelSizes.highest.height - lineCount * lineHeight;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (mirror) {
|
|
|
+ textOffset *= -1;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ y = pixel;
|
|
|
+ textOffset = (1 - lineCount) * lineHeight / 2;
|
|
|
+ }
|
|
|
+ let backdrop;
|
|
|
+ if (optsAtIndex.showLabelBackdrop) {
|
|
|
+ const labelPadding = toPadding(optsAtIndex.backdropPadding);
|
|
|
+ const height = labelSizes.heights[i];
|
|
|
+ const width = labelSizes.widths[i];
|
|
|
+ let top = y + textOffset - labelPadding.top;
|
|
|
+ let left = x - labelPadding.left;
|
|
|
+ switch (textBaseline) {
|
|
|
+ case 'middle':
|
|
|
+ top -= height / 2;
|
|
|
+ break;
|
|
|
+ case 'bottom':
|
|
|
+ top -= height;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ switch (textAlign) {
|
|
|
+ case 'center':
|
|
|
+ left -= width / 2;
|
|
|
+ break;
|
|
|
+ case 'right':
|
|
|
+ left -= width;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ backdrop = {
|
|
|
+ left,
|
|
|
+ top,
|
|
|
+ width: width + labelPadding.width,
|
|
|
+ height: height + labelPadding.height,
|
|
|
+ color: optsAtIndex.backdropColor,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ items.push({
|
|
|
+ rotation,
|
|
|
+ label,
|
|
|
+ font,
|
|
|
+ color,
|
|
|
+ strokeColor,
|
|
|
+ strokeWidth,
|
|
|
+ textOffset,
|
|
|
+ textAlign,
|
|
|
+ textBaseline,
|
|
|
+ translation: [x, y],
|
|
|
+ backdrop,
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return items;
|
|
|
+ }
|
|
|
+ _getXAxisLabelAlignment() {
|
|
|
+ const me = this;
|
|
|
+ const {position, ticks} = me.options;
|
|
|
+ const rotation = -toRadians(me.labelRotation);
|
|
|
+ if (rotation) {
|
|
|
+ return position === 'top' ? 'left' : 'right';
|
|
|
+ }
|
|
|
+ let align = 'center';
|
|
|
+ if (ticks.align === 'start') {
|
|
|
+ align = 'left';
|
|
|
+ } else if (ticks.align === 'end') {
|
|
|
+ align = 'right';
|
|
|
+ }
|
|
|
+ return align;
|
|
|
+ }
|
|
|
+ _getYAxisLabelAlignment(tl) {
|
|
|
+ const me = this;
|
|
|
+ const {position, ticks: {crossAlign, mirror, padding}} = me.options;
|
|
|
+ const labelSizes = me._getLabelSizes();
|
|
|
+ const tickAndPadding = tl + padding;
|
|
|
+ const widest = labelSizes.widest.width;
|
|
|
+ let textAlign;
|
|
|
+ let x;
|
|
|
+ if (position === 'left') {
|
|
|
+ if (mirror) {
|
|
|
+ x = me.right + padding;
|
|
|
+ if (crossAlign === 'near') {
|
|
|
+ textAlign = 'left';
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textAlign = 'center';
|
|
|
+ x += (widest / 2);
|
|
|
+ } else {
|
|
|
+ textAlign = 'right';
|
|
|
+ x += widest;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ x = me.right - tickAndPadding;
|
|
|
+ if (crossAlign === 'near') {
|
|
|
+ textAlign = 'right';
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textAlign = 'center';
|
|
|
+ x -= (widest / 2);
|
|
|
+ } else {
|
|
|
+ textAlign = 'left';
|
|
|
+ x = me.left;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else if (position === 'right') {
|
|
|
+ if (mirror) {
|
|
|
+ x = me.left + padding;
|
|
|
+ if (crossAlign === 'near') {
|
|
|
+ textAlign = 'right';
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textAlign = 'center';
|
|
|
+ x -= (widest / 2);
|
|
|
+ } else {
|
|
|
+ textAlign = 'left';
|
|
|
+ x -= widest;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ x = me.left + tickAndPadding;
|
|
|
+ if (crossAlign === 'near') {
|
|
|
+ textAlign = 'left';
|
|
|
+ } else if (crossAlign === 'center') {
|
|
|
+ textAlign = 'center';
|
|
|
+ x += widest / 2;
|
|
|
+ } else {
|
|
|
+ textAlign = 'right';
|
|
|
+ x = me.right;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ textAlign = 'right';
|
|
|
+ }
|
|
|
+ return {textAlign, x};
|
|
|
+ }
|
|
|
+ _computeLabelArea() {
|
|
|
+ const me = this;
|
|
|
+ if (me.options.ticks.mirror) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const chart = me.chart;
|
|
|
+ const position = me.options.position;
|
|
|
+ if (position === 'left' || position === 'right') {
|
|
|
+ return {top: 0, left: me.left, bottom: chart.height, right: me.right};
|
|
|
+ } if (position === 'top' || position === 'bottom') {
|
|
|
+ return {top: me.top, left: 0, bottom: me.bottom, right: chart.width};
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawBackground() {
|
|
|
+ const {ctx, options: {backgroundColor}, left, top, width, height} = this;
|
|
|
+ if (backgroundColor) {
|
|
|
+ ctx.save();
|
|
|
+ ctx.fillStyle = backgroundColor;
|
|
|
+ ctx.fillRect(left, top, width, height);
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getLineWidthForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ const grid = me.options.grid;
|
|
|
+ if (!me._isVisible() || !grid.display) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ const ticks = me.ticks;
|
|
|
+ const index = ticks.findIndex(t => t.value === value);
|
|
|
+ if (index >= 0) {
|
|
|
+ const opts = grid.setContext(me.getContext(index));
|
|
|
+ return opts.lineWidth;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ drawGrid(chartArea) {
|
|
|
+ const me = this;
|
|
|
+ const grid = me.options.grid;
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const items = me._gridLineItems || (me._gridLineItems = me._computeGridLineItems(chartArea));
|
|
|
+ let i, ilen;
|
|
|
+ const drawLine = (p1, p2, style) => {
|
|
|
+ if (!style.width || !style.color) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ ctx.lineWidth = style.width;
|
|
|
+ ctx.strokeStyle = style.color;
|
|
|
+ ctx.setLineDash(style.borderDash || []);
|
|
|
+ ctx.lineDashOffset = style.borderDashOffset;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo(p1.x, p1.y);
|
|
|
+ ctx.lineTo(p2.x, p2.y);
|
|
|
+ ctx.stroke();
|
|
|
+ ctx.restore();
|
|
|
+ };
|
|
|
+ if (grid.display) {
|
|
|
+ for (i = 0, ilen = items.length; i < ilen; ++i) {
|
|
|
+ const item = items[i];
|
|
|
+ if (grid.drawOnChartArea) {
|
|
|
+ drawLine(
|
|
|
+ {x: item.x1, y: item.y1},
|
|
|
+ {x: item.x2, y: item.y2},
|
|
|
+ item
|
|
|
+ );
|
|
|
+ }
|
|
|
+ if (grid.drawTicks) {
|
|
|
+ drawLine(
|
|
|
+ {x: item.tx1, y: item.ty1},
|
|
|
+ {x: item.tx2, y: item.ty2},
|
|
|
+ {
|
|
|
+ color: item.tickColor,
|
|
|
+ width: item.tickWidth,
|
|
|
+ borderDash: item.tickBorderDash,
|
|
|
+ borderDashOffset: item.tickBorderDashOffset
|
|
|
+ }
|
|
|
+ );
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawBorder() {
|
|
|
+ const me = this;
|
|
|
+ const {chart, ctx, options: {grid}} = me;
|
|
|
+ const borderOpts = grid.setContext(me.getContext());
|
|
|
+ const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0;
|
|
|
+ if (!axisWidth) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const lastLineWidth = grid.setContext(me.getContext(0)).lineWidth;
|
|
|
+ const borderValue = me._borderValue;
|
|
|
+ let x1, x2, y1, y2;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ x1 = _alignPixel(chart, me.left, axisWidth) - axisWidth / 2;
|
|
|
+ x2 = _alignPixel(chart, me.right, lastLineWidth) + lastLineWidth / 2;
|
|
|
+ y1 = y2 = borderValue;
|
|
|
+ } else {
|
|
|
+ y1 = _alignPixel(chart, me.top, axisWidth) - axisWidth / 2;
|
|
|
+ y2 = _alignPixel(chart, me.bottom, lastLineWidth) + lastLineWidth / 2;
|
|
|
+ x1 = x2 = borderValue;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ ctx.lineWidth = borderOpts.borderWidth;
|
|
|
+ ctx.strokeStyle = borderOpts.borderColor;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo(x1, y1);
|
|
|
+ ctx.lineTo(x2, y2);
|
|
|
+ ctx.stroke();
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ drawLabels(chartArea) {
|
|
|
+ const me = this;
|
|
|
+ const optionTicks = me.options.ticks;
|
|
|
+ if (!optionTicks.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const area = me._computeLabelArea();
|
|
|
+ if (area) {
|
|
|
+ clipArea(ctx, area);
|
|
|
+ }
|
|
|
+ const items = me._labelItems || (me._labelItems = me._computeLabelItems(chartArea));
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = items.length; i < ilen; ++i) {
|
|
|
+ const item = items[i];
|
|
|
+ const tickFont = item.font;
|
|
|
+ const label = item.label;
|
|
|
+ if (item.backdrop) {
|
|
|
+ ctx.fillStyle = item.backdrop.color;
|
|
|
+ ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height);
|
|
|
+ }
|
|
|
+ let y = item.textOffset;
|
|
|
+ renderText(ctx, label, 0, y, tickFont, item);
|
|
|
+ }
|
|
|
+ if (area) {
|
|
|
+ unclipArea(ctx);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawTitle() {
|
|
|
+ const {ctx, options: {position, title, reverse}} = this;
|
|
|
+ if (!title.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const font = toFont(title.font);
|
|
|
+ const padding = toPadding(title.padding);
|
|
|
+ const align = title.align;
|
|
|
+ let offset = font.lineHeight / 2;
|
|
|
+ if (position === 'bottom' || position === 'center' || isObject(position)) {
|
|
|
+ offset += padding.bottom;
|
|
|
+ if (isArray(title.text)) {
|
|
|
+ offset += font.lineHeight * (title.text.length - 1);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ offset += padding.top;
|
|
|
+ }
|
|
|
+ const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align);
|
|
|
+ renderText(ctx, title.text, 0, 0, font, {
|
|
|
+ color: title.color,
|
|
|
+ maxWidth,
|
|
|
+ rotation,
|
|
|
+ textAlign: titleAlign(align, position, reverse),
|
|
|
+ textBaseline: 'middle',
|
|
|
+ translation: [titleX, titleY],
|
|
|
+ });
|
|
|
+ }
|
|
|
+ draw(chartArea) {
|
|
|
+ const me = this;
|
|
|
+ if (!me._isVisible()) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ me.drawBackground();
|
|
|
+ me.drawGrid(chartArea);
|
|
|
+ me.drawBorder();
|
|
|
+ me.drawTitle();
|
|
|
+ me.drawLabels(chartArea);
|
|
|
+ }
|
|
|
+ _layers() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const tz = opts.ticks && opts.ticks.z || 0;
|
|
|
+ const gz = valueOrDefault(opts.grid && opts.grid.z, -1);
|
|
|
+ if (!me._isVisible() || me.draw !== Scale.prototype.draw) {
|
|
|
+ return [{
|
|
|
+ z: tz,
|
|
|
+ draw(chartArea) {
|
|
|
+ me.draw(chartArea);
|
|
|
+ }
|
|
|
+ }];
|
|
|
+ }
|
|
|
+ return [{
|
|
|
+ z: gz,
|
|
|
+ draw(chartArea) {
|
|
|
+ me.drawBackground();
|
|
|
+ me.drawGrid(chartArea);
|
|
|
+ me.drawTitle();
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ z: gz + 1,
|
|
|
+ draw() {
|
|
|
+ me.drawBorder();
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ z: tz,
|
|
|
+ draw(chartArea) {
|
|
|
+ me.drawLabels(chartArea);
|
|
|
+ }
|
|
|
+ }];
|
|
|
+ }
|
|
|
+ getMatchingVisibleMetas(type) {
|
|
|
+ const me = this;
|
|
|
+ const metas = me.chart.getSortedVisibleDatasetMetas();
|
|
|
+ const axisID = me.axis + 'AxisID';
|
|
|
+ const result = [];
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = metas.length; i < ilen; ++i) {
|
|
|
+ const meta = metas[i];
|
|
|
+ if (meta[axisID] === me.id && (!type || meta.type === type)) {
|
|
|
+ result.push(meta);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+ }
|
|
|
+ _resolveTickFontOptions(index) {
|
|
|
+ const opts = this.options.ticks.setContext(this.getContext(index));
|
|
|
+ return toFont(opts.font);
|
|
|
+ }
|
|
|
+ _maxDigits() {
|
|
|
+ const me = this;
|
|
|
+ const fontSize = me._resolveTickFontOptions(0).lineHeight;
|
|
|
+ return (me.isHorizontal() ? me.width : me.height) / fontSize;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+class TypedRegistry {
|
|
|
+ constructor(type, scope, override) {
|
|
|
+ this.type = type;
|
|
|
+ this.scope = scope;
|
|
|
+ this.override = override;
|
|
|
+ this.items = Object.create(null);
|
|
|
+ }
|
|
|
+ isForType(type) {
|
|
|
+ return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype);
|
|
|
+ }
|
|
|
+ register(item) {
|
|
|
+ const me = this;
|
|
|
+ const proto = Object.getPrototypeOf(item);
|
|
|
+ let parentScope;
|
|
|
+ if (isIChartComponent(proto)) {
|
|
|
+ parentScope = me.register(proto);
|
|
|
+ }
|
|
|
+ const items = me.items;
|
|
|
+ const id = item.id;
|
|
|
+ const scope = me.scope + '.' + id;
|
|
|
+ if (!id) {
|
|
|
+ throw new Error('class does not have id: ' + item);
|
|
|
+ }
|
|
|
+ if (id in items) {
|
|
|
+ return scope;
|
|
|
+ }
|
|
|
+ items[id] = item;
|
|
|
+ registerDefaults(item, scope, parentScope);
|
|
|
+ if (me.override) {
|
|
|
+ defaults.override(item.id, item.overrides);
|
|
|
+ }
|
|
|
+ return scope;
|
|
|
+ }
|
|
|
+ get(id) {
|
|
|
+ return this.items[id];
|
|
|
+ }
|
|
|
+ unregister(item) {
|
|
|
+ const items = this.items;
|
|
|
+ const id = item.id;
|
|
|
+ const scope = this.scope;
|
|
|
+ if (id in items) {
|
|
|
+ delete items[id];
|
|
|
+ }
|
|
|
+ if (scope && id in defaults[scope]) {
|
|
|
+ delete defaults[scope][id];
|
|
|
+ if (this.override) {
|
|
|
+ delete overrides[id];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function registerDefaults(item, scope, parentScope) {
|
|
|
+ const itemDefaults = merge(Object.create(null), [
|
|
|
+ parentScope ? defaults.get(parentScope) : {},
|
|
|
+ defaults.get(scope),
|
|
|
+ item.defaults
|
|
|
+ ]);
|
|
|
+ defaults.set(scope, itemDefaults);
|
|
|
+ if (item.defaultRoutes) {
|
|
|
+ routeDefaults(scope, item.defaultRoutes);
|
|
|
+ }
|
|
|
+ if (item.descriptors) {
|
|
|
+ defaults.describe(scope, item.descriptors);
|
|
|
+ }
|
|
|
+}
|
|
|
+function routeDefaults(scope, routes) {
|
|
|
+ Object.keys(routes).forEach(property => {
|
|
|
+ const propertyParts = property.split('.');
|
|
|
+ const sourceName = propertyParts.pop();
|
|
|
+ const sourceScope = [scope].concat(propertyParts).join('.');
|
|
|
+ const parts = routes[property].split('.');
|
|
|
+ const targetName = parts.pop();
|
|
|
+ const targetScope = parts.join('.');
|
|
|
+ defaults.route(sourceScope, sourceName, targetScope, targetName);
|
|
|
+ });
|
|
|
+}
|
|
|
+function isIChartComponent(proto) {
|
|
|
+ return 'id' in proto && 'defaults' in proto;
|
|
|
+}
|
|
|
+
|
|
|
+class Registry {
|
|
|
+ constructor() {
|
|
|
+ this.controllers = new TypedRegistry(DatasetController, 'datasets', true);
|
|
|
+ this.elements = new TypedRegistry(Element, 'elements');
|
|
|
+ this.plugins = new TypedRegistry(Object, 'plugins');
|
|
|
+ this.scales = new TypedRegistry(Scale, 'scales');
|
|
|
+ this._typedRegistries = [this.controllers, this.scales, this.elements];
|
|
|
+ }
|
|
|
+ add(...args) {
|
|
|
+ this._each('register', args);
|
|
|
+ }
|
|
|
+ remove(...args) {
|
|
|
+ this._each('unregister', args);
|
|
|
+ }
|
|
|
+ addControllers(...args) {
|
|
|
+ this._each('register', args, this.controllers);
|
|
|
+ }
|
|
|
+ addElements(...args) {
|
|
|
+ this._each('register', args, this.elements);
|
|
|
+ }
|
|
|
+ addPlugins(...args) {
|
|
|
+ this._each('register', args, this.plugins);
|
|
|
+ }
|
|
|
+ addScales(...args) {
|
|
|
+ this._each('register', args, this.scales);
|
|
|
+ }
|
|
|
+ getController(id) {
|
|
|
+ return this._get(id, this.controllers, 'controller');
|
|
|
+ }
|
|
|
+ getElement(id) {
|
|
|
+ return this._get(id, this.elements, 'element');
|
|
|
+ }
|
|
|
+ getPlugin(id) {
|
|
|
+ return this._get(id, this.plugins, 'plugin');
|
|
|
+ }
|
|
|
+ getScale(id) {
|
|
|
+ return this._get(id, this.scales, 'scale');
|
|
|
+ }
|
|
|
+ removeControllers(...args) {
|
|
|
+ this._each('unregister', args, this.controllers);
|
|
|
+ }
|
|
|
+ removeElements(...args) {
|
|
|
+ this._each('unregister', args, this.elements);
|
|
|
+ }
|
|
|
+ removePlugins(...args) {
|
|
|
+ this._each('unregister', args, this.plugins);
|
|
|
+ }
|
|
|
+ removeScales(...args) {
|
|
|
+ this._each('unregister', args, this.scales);
|
|
|
+ }
|
|
|
+ _each(method, args, typedRegistry) {
|
|
|
+ const me = this;
|
|
|
+ [...args].forEach(arg => {
|
|
|
+ const reg = typedRegistry || me._getRegistryForType(arg);
|
|
|
+ if (typedRegistry || reg.isForType(arg) || (reg === me.plugins && arg.id)) {
|
|
|
+ me._exec(method, reg, arg);
|
|
|
+ } else {
|
|
|
+ each(arg, item => {
|
|
|
+ const itemReg = typedRegistry || me._getRegistryForType(item);
|
|
|
+ me._exec(method, itemReg, item);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ _exec(method, registry, component) {
|
|
|
+ const camelMethod = _capitalize(method);
|
|
|
+ callback(component['before' + camelMethod], [], component);
|
|
|
+ registry[method](component);
|
|
|
+ callback(component['after' + camelMethod], [], component);
|
|
|
+ }
|
|
|
+ _getRegistryForType(type) {
|
|
|
+ for (let i = 0; i < this._typedRegistries.length; i++) {
|
|
|
+ const reg = this._typedRegistries[i];
|
|
|
+ if (reg.isForType(type)) {
|
|
|
+ return reg;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return this.plugins;
|
|
|
+ }
|
|
|
+ _get(id, typedRegistry, type) {
|
|
|
+ const item = typedRegistry.get(id);
|
|
|
+ if (item === undefined) {
|
|
|
+ throw new Error('"' + id + '" is not a registered ' + type + '.');
|
|
|
+ }
|
|
|
+ return item;
|
|
|
+ }
|
|
|
+}
|
|
|
+var registry = new Registry();
|
|
|
+
|
|
|
+class PluginService {
|
|
|
+ constructor() {
|
|
|
+ this._init = [];
|
|
|
+ }
|
|
|
+ notify(chart, hook, args, filter) {
|
|
|
+ const me = this;
|
|
|
+ if (hook === 'beforeInit') {
|
|
|
+ me._init = me._createDescriptors(chart, true);
|
|
|
+ me._notify(me._init, chart, 'install');
|
|
|
+ }
|
|
|
+ const descriptors = filter ? me._descriptors(chart).filter(filter) : me._descriptors(chart);
|
|
|
+ const result = me._notify(descriptors, chart, hook, args);
|
|
|
+ if (hook === 'destroy') {
|
|
|
+ me._notify(descriptors, chart, 'stop');
|
|
|
+ me._notify(me._init, chart, 'uninstall');
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+ }
|
|
|
+ _notify(descriptors, chart, hook, args) {
|
|
|
+ args = args || {};
|
|
|
+ for (const descriptor of descriptors) {
|
|
|
+ const plugin = descriptor.plugin;
|
|
|
+ const method = plugin[hook];
|
|
|
+ const params = [chart, args, descriptor.options];
|
|
|
+ if (callback(method, params, plugin) === false && args.cancelable) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ invalidate() {
|
|
|
+ if (!isNullOrUndef(this._cache)) {
|
|
|
+ this._oldCache = this._cache;
|
|
|
+ this._cache = undefined;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _descriptors(chart) {
|
|
|
+ if (this._cache) {
|
|
|
+ return this._cache;
|
|
|
+ }
|
|
|
+ const descriptors = this._cache = this._createDescriptors(chart);
|
|
|
+ this._notifyStateChanges(chart);
|
|
|
+ return descriptors;
|
|
|
+ }
|
|
|
+ _createDescriptors(chart, all) {
|
|
|
+ const config = chart && chart.config;
|
|
|
+ const options = valueOrDefault(config.options && config.options.plugins, {});
|
|
|
+ const plugins = allPlugins(config);
|
|
|
+ return options === false && !all ? [] : createDescriptors(chart, plugins, options, all);
|
|
|
+ }
|
|
|
+ _notifyStateChanges(chart) {
|
|
|
+ const previousDescriptors = this._oldCache || [];
|
|
|
+ const descriptors = this._cache;
|
|
|
+ const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id));
|
|
|
+ this._notify(diff(previousDescriptors, descriptors), chart, 'stop');
|
|
|
+ this._notify(diff(descriptors, previousDescriptors), chart, 'start');
|
|
|
+ }
|
|
|
+}
|
|
|
+function allPlugins(config) {
|
|
|
+ const plugins = [];
|
|
|
+ const keys = Object.keys(registry.plugins.items);
|
|
|
+ for (let i = 0; i < keys.length; i++) {
|
|
|
+ plugins.push(registry.getPlugin(keys[i]));
|
|
|
+ }
|
|
|
+ const local = config.plugins || [];
|
|
|
+ for (let i = 0; i < local.length; i++) {
|
|
|
+ const plugin = local[i];
|
|
|
+ if (plugins.indexOf(plugin) === -1) {
|
|
|
+ plugins.push(plugin);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return plugins;
|
|
|
+}
|
|
|
+function getOpts(options, all) {
|
|
|
+ if (!all && options === false) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ if (options === true) {
|
|
|
+ return {};
|
|
|
+ }
|
|
|
+ return options;
|
|
|
+}
|
|
|
+function createDescriptors(chart, plugins, options, all) {
|
|
|
+ const result = [];
|
|
|
+ const context = chart.getContext();
|
|
|
+ for (let i = 0; i < plugins.length; i++) {
|
|
|
+ const plugin = plugins[i];
|
|
|
+ const id = plugin.id;
|
|
|
+ const opts = getOpts(options[id], all);
|
|
|
+ if (opts === null) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ result.push({
|
|
|
+ plugin,
|
|
|
+ options: pluginOpts(chart.config, plugin, opts, context)
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+}
|
|
|
+function pluginOpts(config, plugin, opts, context) {
|
|
|
+ const keys = config.pluginScopeKeys(plugin);
|
|
|
+ const scopes = config.getOptionScopes(opts, keys);
|
|
|
+ return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true});
|
|
|
+}
|
|
|
+
|
|
|
+function getIndexAxis(type, options) {
|
|
|
+ const datasetDefaults = defaults.datasets[type] || {};
|
|
|
+ const datasetOptions = (options.datasets || {})[type] || {};
|
|
|
+ return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x';
|
|
|
+}
|
|
|
+function getAxisFromDefaultScaleID(id, indexAxis) {
|
|
|
+ let axis = id;
|
|
|
+ if (id === '_index_') {
|
|
|
+ axis = indexAxis;
|
|
|
+ } else if (id === '_value_') {
|
|
|
+ axis = indexAxis === 'x' ? 'y' : 'x';
|
|
|
+ }
|
|
|
+ return axis;
|
|
|
+}
|
|
|
+function getDefaultScaleIDFromAxis(axis, indexAxis) {
|
|
|
+ return axis === indexAxis ? '_index_' : '_value_';
|
|
|
+}
|
|
|
+function axisFromPosition(position) {
|
|
|
+ if (position === 'top' || position === 'bottom') {
|
|
|
+ return 'x';
|
|
|
+ }
|
|
|
+ if (position === 'left' || position === 'right') {
|
|
|
+ return 'y';
|
|
|
+ }
|
|
|
+}
|
|
|
+function determineAxis(id, scaleOptions) {
|
|
|
+ if (id === 'x' || id === 'y') {
|
|
|
+ return id;
|
|
|
+ }
|
|
|
+ return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase();
|
|
|
+}
|
|
|
+function mergeScaleConfig(config, options) {
|
|
|
+ const chartDefaults = overrides[config.type] || {scales: {}};
|
|
|
+ const configScales = options.scales || {};
|
|
|
+ const chartIndexAxis = getIndexAxis(config.type, options);
|
|
|
+ const firstIDs = Object.create(null);
|
|
|
+ const scales = Object.create(null);
|
|
|
+ Object.keys(configScales).forEach(id => {
|
|
|
+ const scaleConf = configScales[id];
|
|
|
+ const axis = determineAxis(id, scaleConf);
|
|
|
+ const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis);
|
|
|
+ const defaultScaleOptions = chartDefaults.scales || {};
|
|
|
+ firstIDs[axis] = firstIDs[axis] || id;
|
|
|
+ scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]);
|
|
|
+ });
|
|
|
+ config.data.datasets.forEach(dataset => {
|
|
|
+ const type = dataset.type || config.type;
|
|
|
+ const indexAxis = dataset.indexAxis || getIndexAxis(type, options);
|
|
|
+ const datasetDefaults = overrides[type] || {};
|
|
|
+ const defaultScaleOptions = datasetDefaults.scales || {};
|
|
|
+ Object.keys(defaultScaleOptions).forEach(defaultID => {
|
|
|
+ const axis = getAxisFromDefaultScaleID(defaultID, indexAxis);
|
|
|
+ const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis;
|
|
|
+ scales[id] = scales[id] || Object.create(null);
|
|
|
+ mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]);
|
|
|
+ });
|
|
|
+ });
|
|
|
+ Object.keys(scales).forEach(key => {
|
|
|
+ const scale = scales[key];
|
|
|
+ mergeIf(scale, [defaults.scales[scale.type], defaults.scale]);
|
|
|
+ });
|
|
|
+ return scales;
|
|
|
+}
|
|
|
+function initOptions(config) {
|
|
|
+ const options = config.options || (config.options = {});
|
|
|
+ options.plugins = valueOrDefault(options.plugins, {});
|
|
|
+ options.scales = mergeScaleConfig(config, options);
|
|
|
+}
|
|
|
+function initData(data) {
|
|
|
+ data = data || {};
|
|
|
+ data.datasets = data.datasets || [];
|
|
|
+ data.labels = data.labels || [];
|
|
|
+ return data;
|
|
|
+}
|
|
|
+function initConfig(config) {
|
|
|
+ config = config || {};
|
|
|
+ config.data = initData(config.data);
|
|
|
+ initOptions(config);
|
|
|
+ return config;
|
|
|
+}
|
|
|
+const keyCache = new Map();
|
|
|
+const keysCached = new Set();
|
|
|
+function cachedKeys(cacheKey, generate) {
|
|
|
+ let keys = keyCache.get(cacheKey);
|
|
|
+ if (!keys) {
|
|
|
+ keys = generate();
|
|
|
+ keyCache.set(cacheKey, keys);
|
|
|
+ keysCached.add(keys);
|
|
|
+ }
|
|
|
+ return keys;
|
|
|
+}
|
|
|
+const addIfFound = (set, obj, key) => {
|
|
|
+ const opts = resolveObjectKey(obj, key);
|
|
|
+ if (opts !== undefined) {
|
|
|
+ set.add(opts);
|
|
|
+ }
|
|
|
+};
|
|
|
+class Config {
|
|
|
+ constructor(config) {
|
|
|
+ this._config = initConfig(config);
|
|
|
+ this._scopeCache = new Map();
|
|
|
+ this._resolverCache = new Map();
|
|
|
+ }
|
|
|
+ get platform() {
|
|
|
+ return this._config.platform;
|
|
|
+ }
|
|
|
+ get type() {
|
|
|
+ return this._config.type;
|
|
|
+ }
|
|
|
+ set type(type) {
|
|
|
+ this._config.type = type;
|
|
|
+ }
|
|
|
+ get data() {
|
|
|
+ return this._config.data;
|
|
|
+ }
|
|
|
+ set data(data) {
|
|
|
+ this._config.data = initData(data);
|
|
|
+ }
|
|
|
+ get options() {
|
|
|
+ return this._config.options;
|
|
|
+ }
|
|
|
+ set options(options) {
|
|
|
+ this._config.options = options;
|
|
|
+ }
|
|
|
+ get plugins() {
|
|
|
+ return this._config.plugins;
|
|
|
+ }
|
|
|
+ update() {
|
|
|
+ const config = this._config;
|
|
|
+ this.clearCache();
|
|
|
+ initOptions(config);
|
|
|
+ }
|
|
|
+ clearCache() {
|
|
|
+ this._scopeCache.clear();
|
|
|
+ this._resolverCache.clear();
|
|
|
+ }
|
|
|
+ datasetScopeKeys(datasetType) {
|
|
|
+ return cachedKeys(datasetType,
|
|
|
+ () => [[
|
|
|
+ `datasets.${datasetType}`,
|
|
|
+ ''
|
|
|
+ ]]);
|
|
|
+ }
|
|
|
+ datasetAnimationScopeKeys(datasetType, transition) {
|
|
|
+ return cachedKeys(`${datasetType}.transition.${transition}`,
|
|
|
+ () => [
|
|
|
+ [
|
|
|
+ `datasets.${datasetType}.transitions.${transition}`,
|
|
|
+ `transitions.${transition}`,
|
|
|
+ ],
|
|
|
+ [
|
|
|
+ `datasets.${datasetType}`,
|
|
|
+ ''
|
|
|
+ ]
|
|
|
+ ]);
|
|
|
+ }
|
|
|
+ datasetElementScopeKeys(datasetType, elementType) {
|
|
|
+ return cachedKeys(`${datasetType}-${elementType}`,
|
|
|
+ () => [[
|
|
|
+ `datasets.${datasetType}.elements.${elementType}`,
|
|
|
+ `datasets.${datasetType}`,
|
|
|
+ `elements.${elementType}`,
|
|
|
+ ''
|
|
|
+ ]]);
|
|
|
+ }
|
|
|
+ pluginScopeKeys(plugin) {
|
|
|
+ const id = plugin.id;
|
|
|
+ const type = this.type;
|
|
|
+ return cachedKeys(`${type}-plugin-${id}`,
|
|
|
+ () => [[
|
|
|
+ `plugins.${id}`,
|
|
|
+ ...plugin.additionalOptionScopes || [],
|
|
|
+ ]]);
|
|
|
+ }
|
|
|
+ _cachedScopes(mainScope, resetCache) {
|
|
|
+ const _scopeCache = this._scopeCache;
|
|
|
+ let cache = _scopeCache.get(mainScope);
|
|
|
+ if (!cache || resetCache) {
|
|
|
+ cache = new Map();
|
|
|
+ _scopeCache.set(mainScope, cache);
|
|
|
+ }
|
|
|
+ return cache;
|
|
|
+ }
|
|
|
+ getOptionScopes(mainScope, keyLists, resetCache) {
|
|
|
+ const {options, type} = this;
|
|
|
+ const cache = this._cachedScopes(mainScope, resetCache);
|
|
|
+ const cached = cache.get(keyLists);
|
|
|
+ if (cached) {
|
|
|
+ return cached;
|
|
|
+ }
|
|
|
+ const scopes = new Set();
|
|
|
+ keyLists.forEach(keys => {
|
|
|
+ if (mainScope) {
|
|
|
+ scopes.add(mainScope);
|
|
|
+ keys.forEach(key => addIfFound(scopes, mainScope, key));
|
|
|
+ }
|
|
|
+ keys.forEach(key => addIfFound(scopes, options, key));
|
|
|
+ keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key));
|
|
|
+ keys.forEach(key => addIfFound(scopes, defaults, key));
|
|
|
+ keys.forEach(key => addIfFound(scopes, descriptors, key));
|
|
|
+ });
|
|
|
+ const array = Array.from(scopes);
|
|
|
+ if (array.length === 0) {
|
|
|
+ array.push(Object.create(null));
|
|
|
+ }
|
|
|
+ if (keysCached.has(keyLists)) {
|
|
|
+ cache.set(keyLists, array);
|
|
|
+ }
|
|
|
+ return array;
|
|
|
+ }
|
|
|
+ chartOptionScopes() {
|
|
|
+ const {options, type} = this;
|
|
|
+ return [
|
|
|
+ options,
|
|
|
+ overrides[type] || {},
|
|
|
+ defaults.datasets[type] || {},
|
|
|
+ {type},
|
|
|
+ defaults,
|
|
|
+ descriptors
|
|
|
+ ];
|
|
|
+ }
|
|
|
+ resolveNamedOptions(scopes, names, context, prefixes = ['']) {
|
|
|
+ const result = {$shared: true};
|
|
|
+ const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes);
|
|
|
+ let options = resolver;
|
|
|
+ if (needContext(resolver, names)) {
|
|
|
+ result.$shared = false;
|
|
|
+ context = isFunction(context) ? context() : context;
|
|
|
+ const subResolver = this.createResolver(scopes, context, subPrefixes);
|
|
|
+ options = _attachContext(resolver, context, subResolver);
|
|
|
+ }
|
|
|
+ for (const prop of names) {
|
|
|
+ result[prop] = options[prop];
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+ }
|
|
|
+ createResolver(scopes, context, prefixes = [''], descriptorDefaults) {
|
|
|
+ const {resolver} = getResolver(this._resolverCache, scopes, prefixes);
|
|
|
+ return isObject(context)
|
|
|
+ ? _attachContext(resolver, context, undefined, descriptorDefaults)
|
|
|
+ : resolver;
|
|
|
+ }
|
|
|
+}
|
|
|
+function getResolver(resolverCache, scopes, prefixes) {
|
|
|
+ let cache = resolverCache.get(scopes);
|
|
|
+ if (!cache) {
|
|
|
+ cache = new Map();
|
|
|
+ resolverCache.set(scopes, cache);
|
|
|
+ }
|
|
|
+ const cacheKey = prefixes.join();
|
|
|
+ let cached = cache.get(cacheKey);
|
|
|
+ if (!cached) {
|
|
|
+ const resolver = _createResolver(scopes, prefixes);
|
|
|
+ cached = {
|
|
|
+ resolver,
|
|
|
+ subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover'))
|
|
|
+ };
|
|
|
+ cache.set(cacheKey, cached);
|
|
|
+ }
|
|
|
+ return cached;
|
|
|
+}
|
|
|
+function needContext(proxy, names) {
|
|
|
+ const {isScriptable, isIndexable} = _descriptors(proxy);
|
|
|
+ for (const prop of names) {
|
|
|
+ if ((isScriptable(prop) && isFunction(proxy[prop]))
|
|
|
+ || (isIndexable(prop) && isArray(proxy[prop]))) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+var version = "3.5.1";
|
|
|
+
|
|
|
+const KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea'];
|
|
|
+function positionIsHorizontal(position, axis) {
|
|
|
+ return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x');
|
|
|
+}
|
|
|
+function compare2Level(l1, l2) {
|
|
|
+ return function(a, b) {
|
|
|
+ return a[l1] === b[l1]
|
|
|
+ ? a[l2] - b[l2]
|
|
|
+ : a[l1] - b[l1];
|
|
|
+ };
|
|
|
+}
|
|
|
+function onAnimationsComplete(context) {
|
|
|
+ const chart = context.chart;
|
|
|
+ const animationOptions = chart.options.animation;
|
|
|
+ chart.notifyPlugins('afterRender');
|
|
|
+ callback(animationOptions && animationOptions.onComplete, [context], chart);
|
|
|
+}
|
|
|
+function onAnimationProgress(context) {
|
|
|
+ const chart = context.chart;
|
|
|
+ const animationOptions = chart.options.animation;
|
|
|
+ callback(animationOptions && animationOptions.onProgress, [context], chart);
|
|
|
+}
|
|
|
+function getCanvas(item) {
|
|
|
+ if (_isDomSupported() && typeof item === 'string') {
|
|
|
+ item = document.getElementById(item);
|
|
|
+ } else if (item && item.length) {
|
|
|
+ item = item[0];
|
|
|
+ }
|
|
|
+ if (item && item.canvas) {
|
|
|
+ item = item.canvas;
|
|
|
+ }
|
|
|
+ return item;
|
|
|
+}
|
|
|
+const instances = {};
|
|
|
+const getChart = (key) => {
|
|
|
+ const canvas = getCanvas(key);
|
|
|
+ return Object.values(instances).filter((c) => c.canvas === canvas).pop();
|
|
|
+};
|
|
|
+class Chart {
|
|
|
+ constructor(item, userConfig) {
|
|
|
+ const me = this;
|
|
|
+ const config = this.config = new Config(userConfig);
|
|
|
+ const initialCanvas = getCanvas(item);
|
|
|
+ const existingChart = getChart(initialCanvas);
|
|
|
+ if (existingChart) {
|
|
|
+ throw new Error(
|
|
|
+ 'Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' +
|
|
|
+ ' must be destroyed before the canvas can be reused.'
|
|
|
+ );
|
|
|
+ }
|
|
|
+ const options = config.createResolver(config.chartOptionScopes(), me.getContext());
|
|
|
+ this.platform = new (config.platform || _detectPlatform(initialCanvas))();
|
|
|
+ const context = me.platform.acquireContext(initialCanvas, options.aspectRatio);
|
|
|
+ const canvas = context && context.canvas;
|
|
|
+ const height = canvas && canvas.height;
|
|
|
+ const width = canvas && canvas.width;
|
|
|
+ this.id = uid();
|
|
|
+ this.ctx = context;
|
|
|
+ this.canvas = canvas;
|
|
|
+ this.width = width;
|
|
|
+ this.height = height;
|
|
|
+ this._options = options;
|
|
|
+ this._aspectRatio = this.aspectRatio;
|
|
|
+ this._layers = [];
|
|
|
+ this._metasets = [];
|
|
|
+ this._stacks = undefined;
|
|
|
+ this.boxes = [];
|
|
|
+ this.currentDevicePixelRatio = undefined;
|
|
|
+ this.chartArea = undefined;
|
|
|
+ this._active = [];
|
|
|
+ this._lastEvent = undefined;
|
|
|
+ this._listeners = {};
|
|
|
+ this._responsiveListeners = undefined;
|
|
|
+ this._sortedMetasets = [];
|
|
|
+ this.scales = {};
|
|
|
+ this._plugins = new PluginService();
|
|
|
+ this.$proxies = {};
|
|
|
+ this._hiddenIndices = {};
|
|
|
+ this.attached = false;
|
|
|
+ this._animationsDisabled = undefined;
|
|
|
+ this.$context = undefined;
|
|
|
+ this._doResize = debounce(() => this.update('resize'), options.resizeDelay || 0);
|
|
|
+ instances[me.id] = me;
|
|
|
+ if (!context || !canvas) {
|
|
|
+ console.error("Failed to create chart: can't acquire context from the given item");
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ animator.listen(me, 'complete', onAnimationsComplete);
|
|
|
+ animator.listen(me, 'progress', onAnimationProgress);
|
|
|
+ me._initialize();
|
|
|
+ if (me.attached) {
|
|
|
+ me.update();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ get aspectRatio() {
|
|
|
+ const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this;
|
|
|
+ if (!isNullOrUndef(aspectRatio)) {
|
|
|
+ return aspectRatio;
|
|
|
+ }
|
|
|
+ if (maintainAspectRatio && _aspectRatio) {
|
|
|
+ return _aspectRatio;
|
|
|
+ }
|
|
|
+ return height ? width / height : null;
|
|
|
+ }
|
|
|
+ get data() {
|
|
|
+ return this.config.data;
|
|
|
+ }
|
|
|
+ set data(data) {
|
|
|
+ this.config.data = data;
|
|
|
+ }
|
|
|
+ get options() {
|
|
|
+ return this._options;
|
|
|
+ }
|
|
|
+ set options(options) {
|
|
|
+ this.config.options = options;
|
|
|
+ }
|
|
|
+ _initialize() {
|
|
|
+ const me = this;
|
|
|
+ me.notifyPlugins('beforeInit');
|
|
|
+ if (me.options.responsive) {
|
|
|
+ me.resize();
|
|
|
+ } else {
|
|
|
+ retinaScale(me, me.options.devicePixelRatio);
|
|
|
+ }
|
|
|
+ me.bindEvents();
|
|
|
+ me.notifyPlugins('afterInit');
|
|
|
+ return me;
|
|
|
+ }
|
|
|
+ clear() {
|
|
|
+ clearCanvas(this.canvas, this.ctx);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ stop() {
|
|
|
+ animator.stop(this);
|
|
|
+ return this;
|
|
|
+ }
|
|
|
+ resize(width, height) {
|
|
|
+ if (!animator.running(this)) {
|
|
|
+ this._resize(width, height);
|
|
|
+ } else {
|
|
|
+ this._resizeBeforeDraw = {width, height};
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _resize(width, height) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const canvas = me.canvas;
|
|
|
+ const aspectRatio = options.maintainAspectRatio && me.aspectRatio;
|
|
|
+ const newSize = me.platform.getMaximumSize(canvas, width, height, aspectRatio);
|
|
|
+ const newRatio = options.devicePixelRatio || me.platform.getDevicePixelRatio();
|
|
|
+ me.width = newSize.width;
|
|
|
+ me.height = newSize.height;
|
|
|
+ me._aspectRatio = me.aspectRatio;
|
|
|
+ if (!retinaScale(me, newRatio, true)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ me.notifyPlugins('resize', {size: newSize});
|
|
|
+ callback(options.onResize, [me, newSize], me);
|
|
|
+ if (me.attached) {
|
|
|
+ if (me._doResize()) {
|
|
|
+ me.render();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ensureScalesHaveIDs() {
|
|
|
+ const options = this.options;
|
|
|
+ const scalesOptions = options.scales || {};
|
|
|
+ each(scalesOptions, (axisOptions, axisID) => {
|
|
|
+ axisOptions.id = axisID;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ buildOrUpdateScales() {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const scaleOpts = options.scales;
|
|
|
+ const scales = me.scales;
|
|
|
+ const updated = Object.keys(scales).reduce((obj, id) => {
|
|
|
+ obj[id] = false;
|
|
|
+ return obj;
|
|
|
+ }, {});
|
|
|
+ let items = [];
|
|
|
+ if (scaleOpts) {
|
|
|
+ items = items.concat(
|
|
|
+ Object.keys(scaleOpts).map((id) => {
|
|
|
+ const scaleOptions = scaleOpts[id];
|
|
|
+ const axis = determineAxis(id, scaleOptions);
|
|
|
+ const isRadial = axis === 'r';
|
|
|
+ const isHorizontal = axis === 'x';
|
|
|
+ return {
|
|
|
+ options: scaleOptions,
|
|
|
+ dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left',
|
|
|
+ dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear'
|
|
|
+ };
|
|
|
+ })
|
|
|
+ );
|
|
|
+ }
|
|
|
+ each(items, (item) => {
|
|
|
+ const scaleOptions = item.options;
|
|
|
+ const id = scaleOptions.id;
|
|
|
+ const axis = determineAxis(id, scaleOptions);
|
|
|
+ const scaleType = valueOrDefault(scaleOptions.type, item.dtype);
|
|
|
+ if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) {
|
|
|
+ scaleOptions.position = item.dposition;
|
|
|
+ }
|
|
|
+ updated[id] = true;
|
|
|
+ let scale = null;
|
|
|
+ if (id in scales && scales[id].type === scaleType) {
|
|
|
+ scale = scales[id];
|
|
|
+ } else {
|
|
|
+ const scaleClass = registry.getScale(scaleType);
|
|
|
+ scale = new scaleClass({
|
|
|
+ id,
|
|
|
+ type: scaleType,
|
|
|
+ ctx: me.ctx,
|
|
|
+ chart: me
|
|
|
+ });
|
|
|
+ scales[scale.id] = scale;
|
|
|
+ }
|
|
|
+ scale.init(scaleOptions, options);
|
|
|
+ });
|
|
|
+ each(updated, (hasUpdated, id) => {
|
|
|
+ if (!hasUpdated) {
|
|
|
+ delete scales[id];
|
|
|
+ }
|
|
|
+ });
|
|
|
+ each(scales, (scale) => {
|
|
|
+ layouts.configure(me, scale, scale.options);
|
|
|
+ layouts.addBox(me, scale);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ _updateMetasets() {
|
|
|
+ const me = this;
|
|
|
+ const metasets = me._metasets;
|
|
|
+ const numData = me.data.datasets.length;
|
|
|
+ const numMeta = metasets.length;
|
|
|
+ metasets.sort((a, b) => a.index - b.index);
|
|
|
+ if (numMeta > numData) {
|
|
|
+ for (let i = numData; i < numMeta; ++i) {
|
|
|
+ me._destroyDatasetMeta(i);
|
|
|
+ }
|
|
|
+ metasets.splice(numData, numMeta - numData);
|
|
|
+ }
|
|
|
+ me._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index'));
|
|
|
+ }
|
|
|
+ _removeUnreferencedMetasets() {
|
|
|
+ const me = this;
|
|
|
+ const {_metasets: metasets, data: {datasets}} = me;
|
|
|
+ if (metasets.length > datasets.length) {
|
|
|
+ delete me._stacks;
|
|
|
+ }
|
|
|
+ metasets.forEach((meta, index) => {
|
|
|
+ if (datasets.filter(x => x === meta._dataset).length === 0) {
|
|
|
+ me._destroyDatasetMeta(index);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ buildOrUpdateControllers() {
|
|
|
+ const me = this;
|
|
|
+ const newControllers = [];
|
|
|
+ const datasets = me.data.datasets;
|
|
|
+ let i, ilen;
|
|
|
+ me._removeUnreferencedMetasets();
|
|
|
+ for (i = 0, ilen = datasets.length; i < ilen; i++) {
|
|
|
+ const dataset = datasets[i];
|
|
|
+ let meta = me.getDatasetMeta(i);
|
|
|
+ const type = dataset.type || me.config.type;
|
|
|
+ if (meta.type && meta.type !== type) {
|
|
|
+ me._destroyDatasetMeta(i);
|
|
|
+ meta = me.getDatasetMeta(i);
|
|
|
+ }
|
|
|
+ meta.type = type;
|
|
|
+ meta.indexAxis = dataset.indexAxis || getIndexAxis(type, me.options);
|
|
|
+ meta.order = dataset.order || 0;
|
|
|
+ meta.index = i;
|
|
|
+ meta.label = '' + dataset.label;
|
|
|
+ meta.visible = me.isDatasetVisible(i);
|
|
|
+ if (meta.controller) {
|
|
|
+ meta.controller.updateIndex(i);
|
|
|
+ meta.controller.linkScales();
|
|
|
+ } else {
|
|
|
+ const ControllerClass = registry.getController(type);
|
|
|
+ const {datasetElementType, dataElementType} = defaults.datasets[type];
|
|
|
+ Object.assign(ControllerClass.prototype, {
|
|
|
+ dataElementType: registry.getElement(dataElementType),
|
|
|
+ datasetElementType: datasetElementType && registry.getElement(datasetElementType)
|
|
|
+ });
|
|
|
+ meta.controller = new ControllerClass(me, i);
|
|
|
+ newControllers.push(meta.controller);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me._updateMetasets();
|
|
|
+ return newControllers;
|
|
|
+ }
|
|
|
+ _resetElements() {
|
|
|
+ const me = this;
|
|
|
+ each(me.data.datasets, (dataset, datasetIndex) => {
|
|
|
+ me.getDatasetMeta(datasetIndex).controller.reset();
|
|
|
+ }, me);
|
|
|
+ }
|
|
|
+ reset() {
|
|
|
+ this._resetElements();
|
|
|
+ this.notifyPlugins('reset');
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const config = me.config;
|
|
|
+ config.update();
|
|
|
+ me._options = config.createResolver(config.chartOptionScopes(), me.getContext());
|
|
|
+ each(me.scales, (scale) => {
|
|
|
+ layouts.removeBox(me, scale);
|
|
|
+ });
|
|
|
+ const animsDisabled = me._animationsDisabled = !me.options.animation;
|
|
|
+ me.ensureScalesHaveIDs();
|
|
|
+ me.buildOrUpdateScales();
|
|
|
+ const existingEvents = new Set(Object.keys(me._listeners));
|
|
|
+ const newEvents = new Set(me.options.events);
|
|
|
+ if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== me.options.responsive) {
|
|
|
+ me.unbindEvents();
|
|
|
+ me.bindEvents();
|
|
|
+ }
|
|
|
+ me._plugins.invalidate();
|
|
|
+ if (me.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const newControllers = me.buildOrUpdateControllers();
|
|
|
+ me.notifyPlugins('beforeElementsUpdate');
|
|
|
+ let minPadding = 0;
|
|
|
+ for (let i = 0, ilen = me.data.datasets.length; i < ilen; i++) {
|
|
|
+ const {controller} = me.getDatasetMeta(i);
|
|
|
+ const reset = !animsDisabled && newControllers.indexOf(controller) === -1;
|
|
|
+ controller.buildOrUpdateElements(reset);
|
|
|
+ minPadding = Math.max(+controller.getMaxOverflow(), minPadding);
|
|
|
+ }
|
|
|
+ me._minPadding = minPadding;
|
|
|
+ me._updateLayout(minPadding);
|
|
|
+ if (!animsDisabled) {
|
|
|
+ each(newControllers, (controller) => {
|
|
|
+ controller.reset();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ me._updateDatasets(mode);
|
|
|
+ me.notifyPlugins('afterUpdate', {mode});
|
|
|
+ me._layers.sort(compare2Level('z', '_idx'));
|
|
|
+ if (me._lastEvent) {
|
|
|
+ me._eventHandler(me._lastEvent, true);
|
|
|
+ }
|
|
|
+ me.render();
|
|
|
+ }
|
|
|
+ _updateLayout(minPadding) {
|
|
|
+ const me = this;
|
|
|
+ if (me.notifyPlugins('beforeLayout', {cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ layouts.update(me, me.width, me.height, minPadding);
|
|
|
+ const area = me.chartArea;
|
|
|
+ const noArea = area.width <= 0 || area.height <= 0;
|
|
|
+ me._layers = [];
|
|
|
+ each(me.boxes, (box) => {
|
|
|
+ if (noArea && box.position === 'chartArea') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (box.configure) {
|
|
|
+ box.configure();
|
|
|
+ }
|
|
|
+ me._layers.push(...box._layers());
|
|
|
+ }, me);
|
|
|
+ me._layers.forEach((item, index) => {
|
|
|
+ item._idx = index;
|
|
|
+ });
|
|
|
+ me.notifyPlugins('afterLayout');
|
|
|
+ }
|
|
|
+ _updateDatasets(mode) {
|
|
|
+ const me = this;
|
|
|
+ const isFunction = typeof mode === 'function';
|
|
|
+ if (me.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ for (let i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
|
|
|
+ me._updateDataset(i, isFunction ? mode({datasetIndex: i}) : mode);
|
|
|
+ }
|
|
|
+ me.notifyPlugins('afterDatasetsUpdate', {mode});
|
|
|
+ }
|
|
|
+ _updateDataset(index, mode) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me.getDatasetMeta(index);
|
|
|
+ const args = {meta, index, mode, cancelable: true};
|
|
|
+ if (me.notifyPlugins('beforeDatasetUpdate', args) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ meta.controller._update(mode);
|
|
|
+ args.cancelable = false;
|
|
|
+ me.notifyPlugins('afterDatasetUpdate', args);
|
|
|
+ }
|
|
|
+ render() {
|
|
|
+ const me = this;
|
|
|
+ if (me.notifyPlugins('beforeRender', {cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (animator.has(me)) {
|
|
|
+ if (me.attached && !animator.running(me)) {
|
|
|
+ animator.start(me);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ me.draw();
|
|
|
+ onAnimationsComplete({chart: me});
|
|
|
+ }
|
|
|
+ }
|
|
|
+ draw() {
|
|
|
+ const me = this;
|
|
|
+ let i;
|
|
|
+ if (me._resizeBeforeDraw) {
|
|
|
+ const {width, height} = me._resizeBeforeDraw;
|
|
|
+ me._resize(width, height);
|
|
|
+ me._resizeBeforeDraw = null;
|
|
|
+ }
|
|
|
+ me.clear();
|
|
|
+ if (me.width <= 0 || me.height <= 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (me.notifyPlugins('beforeDraw', {cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const layers = me._layers;
|
|
|
+ for (i = 0; i < layers.length && layers[i].z <= 0; ++i) {
|
|
|
+ layers[i].draw(me.chartArea);
|
|
|
+ }
|
|
|
+ me._drawDatasets();
|
|
|
+ for (; i < layers.length; ++i) {
|
|
|
+ layers[i].draw(me.chartArea);
|
|
|
+ }
|
|
|
+ me.notifyPlugins('afterDraw');
|
|
|
+ }
|
|
|
+ _getSortedDatasetMetas(filterVisible) {
|
|
|
+ const me = this;
|
|
|
+ const metasets = me._sortedMetasets;
|
|
|
+ const result = [];
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = metasets.length; i < ilen; ++i) {
|
|
|
+ const meta = metasets[i];
|
|
|
+ if (!filterVisible || meta.visible) {
|
|
|
+ result.push(meta);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return result;
|
|
|
+ }
|
|
|
+ getSortedVisibleDatasetMetas() {
|
|
|
+ return this._getSortedDatasetMetas(true);
|
|
|
+ }
|
|
|
+ _drawDatasets() {
|
|
|
+ const me = this;
|
|
|
+ if (me.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const metasets = me.getSortedVisibleDatasetMetas();
|
|
|
+ for (let i = metasets.length - 1; i >= 0; --i) {
|
|
|
+ me._drawDataset(metasets[i]);
|
|
|
+ }
|
|
|
+ me.notifyPlugins('afterDatasetsDraw');
|
|
|
+ }
|
|
|
+ _drawDataset(meta) {
|
|
|
+ const me = this;
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const clip = meta._clip;
|
|
|
+ const useClip = !clip.disabled;
|
|
|
+ const area = me.chartArea;
|
|
|
+ const args = {
|
|
|
+ meta,
|
|
|
+ index: meta.index,
|
|
|
+ cancelable: true
|
|
|
+ };
|
|
|
+ if (me.notifyPlugins('beforeDatasetDraw', args) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (useClip) {
|
|
|
+ clipArea(ctx, {
|
|
|
+ left: clip.left === false ? 0 : area.left - clip.left,
|
|
|
+ right: clip.right === false ? me.width : area.right + clip.right,
|
|
|
+ top: clip.top === false ? 0 : area.top - clip.top,
|
|
|
+ bottom: clip.bottom === false ? me.height : area.bottom + clip.bottom
|
|
|
+ });
|
|
|
+ }
|
|
|
+ meta.controller.draw();
|
|
|
+ if (useClip) {
|
|
|
+ unclipArea(ctx);
|
|
|
+ }
|
|
|
+ args.cancelable = false;
|
|
|
+ me.notifyPlugins('afterDatasetDraw', args);
|
|
|
+ }
|
|
|
+ getElementsAtEventForMode(e, mode, options, useFinalPosition) {
|
|
|
+ const method = Interaction.modes[mode];
|
|
|
+ if (typeof method === 'function') {
|
|
|
+ return method(this, e, options, useFinalPosition);
|
|
|
+ }
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ getDatasetMeta(datasetIndex) {
|
|
|
+ const me = this;
|
|
|
+ const dataset = me.data.datasets[datasetIndex];
|
|
|
+ const metasets = me._metasets;
|
|
|
+ let meta = metasets.filter(x => x && x._dataset === dataset).pop();
|
|
|
+ if (!meta) {
|
|
|
+ meta = {
|
|
|
+ type: null,
|
|
|
+ data: [],
|
|
|
+ dataset: null,
|
|
|
+ controller: null,
|
|
|
+ hidden: null,
|
|
|
+ xAxisID: null,
|
|
|
+ yAxisID: null,
|
|
|
+ order: dataset && dataset.order || 0,
|
|
|
+ index: datasetIndex,
|
|
|
+ _dataset: dataset,
|
|
|
+ _parsed: [],
|
|
|
+ _sorted: false
|
|
|
+ };
|
|
|
+ metasets.push(meta);
|
|
|
+ }
|
|
|
+ return meta;
|
|
|
+ }
|
|
|
+ getContext() {
|
|
|
+ return this.$context || (this.$context = {chart: this, type: 'chart'});
|
|
|
+ }
|
|
|
+ getVisibleDatasetCount() {
|
|
|
+ return this.getSortedVisibleDatasetMetas().length;
|
|
|
+ }
|
|
|
+ isDatasetVisible(datasetIndex) {
|
|
|
+ const dataset = this.data.datasets[datasetIndex];
|
|
|
+ if (!dataset) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ const meta = this.getDatasetMeta(datasetIndex);
|
|
|
+ return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden;
|
|
|
+ }
|
|
|
+ setDatasetVisibility(datasetIndex, visible) {
|
|
|
+ const meta = this.getDatasetMeta(datasetIndex);
|
|
|
+ meta.hidden = !visible;
|
|
|
+ }
|
|
|
+ toggleDataVisibility(index) {
|
|
|
+ this._hiddenIndices[index] = !this._hiddenIndices[index];
|
|
|
+ }
|
|
|
+ getDataVisibility(index) {
|
|
|
+ return !this._hiddenIndices[index];
|
|
|
+ }
|
|
|
+ _updateVisibility(datasetIndex, dataIndex, visible) {
|
|
|
+ const me = this;
|
|
|
+ const mode = visible ? 'show' : 'hide';
|
|
|
+ const meta = me.getDatasetMeta(datasetIndex);
|
|
|
+ const anims = meta.controller._resolveAnimations(undefined, mode);
|
|
|
+ if (defined(dataIndex)) {
|
|
|
+ meta.data[dataIndex].hidden = !visible;
|
|
|
+ me.update();
|
|
|
+ } else {
|
|
|
+ me.setDatasetVisibility(datasetIndex, visible);
|
|
|
+ anims.update(meta, {visible});
|
|
|
+ me.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ hide(datasetIndex, dataIndex) {
|
|
|
+ this._updateVisibility(datasetIndex, dataIndex, false);
|
|
|
+ }
|
|
|
+ show(datasetIndex, dataIndex) {
|
|
|
+ this._updateVisibility(datasetIndex, dataIndex, true);
|
|
|
+ }
|
|
|
+ _destroyDatasetMeta(datasetIndex) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._metasets && me._metasets[datasetIndex];
|
|
|
+ if (meta && meta.controller) {
|
|
|
+ meta.controller._destroy();
|
|
|
+ delete me._metasets[datasetIndex];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ destroy() {
|
|
|
+ const me = this;
|
|
|
+ const {canvas, ctx} = me;
|
|
|
+ let i, ilen;
|
|
|
+ me.stop();
|
|
|
+ animator.remove(me);
|
|
|
+ for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
|
|
|
+ me._destroyDatasetMeta(i);
|
|
|
+ }
|
|
|
+ me.config.clearCache();
|
|
|
+ if (canvas) {
|
|
|
+ me.unbindEvents();
|
|
|
+ clearCanvas(canvas, ctx);
|
|
|
+ me.platform.releaseContext(ctx);
|
|
|
+ me.canvas = null;
|
|
|
+ me.ctx = null;
|
|
|
+ }
|
|
|
+ me.notifyPlugins('destroy');
|
|
|
+ delete instances[me.id];
|
|
|
+ }
|
|
|
+ toBase64Image(...args) {
|
|
|
+ return this.canvas.toDataURL(...args);
|
|
|
+ }
|
|
|
+ bindEvents() {
|
|
|
+ this.bindUserEvents();
|
|
|
+ if (this.options.responsive) {
|
|
|
+ this.bindResponsiveEvents();
|
|
|
+ } else {
|
|
|
+ this.attached = true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ bindUserEvents() {
|
|
|
+ const me = this;
|
|
|
+ const listeners = me._listeners;
|
|
|
+ const platform = me.platform;
|
|
|
+ const _add = (type, listener) => {
|
|
|
+ platform.addEventListener(me, type, listener);
|
|
|
+ listeners[type] = listener;
|
|
|
+ };
|
|
|
+ const listener = function(e, x, y) {
|
|
|
+ e.offsetX = x;
|
|
|
+ e.offsetY = y;
|
|
|
+ me._eventHandler(e);
|
|
|
+ };
|
|
|
+ each(me.options.events, (type) => _add(type, listener));
|
|
|
+ }
|
|
|
+ bindResponsiveEvents() {
|
|
|
+ const me = this;
|
|
|
+ if (!me._responsiveListeners) {
|
|
|
+ me._responsiveListeners = {};
|
|
|
+ }
|
|
|
+ const listeners = me._responsiveListeners;
|
|
|
+ const platform = me.platform;
|
|
|
+ const _add = (type, listener) => {
|
|
|
+ platform.addEventListener(me, type, listener);
|
|
|
+ listeners[type] = listener;
|
|
|
+ };
|
|
|
+ const _remove = (type, listener) => {
|
|
|
+ if (listeners[type]) {
|
|
|
+ platform.removeEventListener(me, type, listener);
|
|
|
+ delete listeners[type];
|
|
|
+ }
|
|
|
+ };
|
|
|
+ const listener = (width, height) => {
|
|
|
+ if (me.canvas) {
|
|
|
+ me.resize(width, height);
|
|
|
+ }
|
|
|
+ };
|
|
|
+ let detached;
|
|
|
+ const attached = () => {
|
|
|
+ _remove('attach', attached);
|
|
|
+ me.attached = true;
|
|
|
+ me.resize();
|
|
|
+ _add('resize', listener);
|
|
|
+ _add('detach', detached);
|
|
|
+ };
|
|
|
+ detached = () => {
|
|
|
+ me.attached = false;
|
|
|
+ _remove('resize', listener);
|
|
|
+ _add('attach', attached);
|
|
|
+ };
|
|
|
+ if (platform.isAttached(me.canvas)) {
|
|
|
+ attached();
|
|
|
+ } else {
|
|
|
+ detached();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ unbindEvents() {
|
|
|
+ const me = this;
|
|
|
+ each(me._listeners, (listener, type) => {
|
|
|
+ me.platform.removeEventListener(me, type, listener);
|
|
|
+ });
|
|
|
+ me._listeners = {};
|
|
|
+ each(me._responsiveListeners, (listener, type) => {
|
|
|
+ me.platform.removeEventListener(me, type, listener);
|
|
|
+ });
|
|
|
+ me._responsiveListeners = undefined;
|
|
|
+ }
|
|
|
+ updateHoverStyle(items, mode, enabled) {
|
|
|
+ const prefix = enabled ? 'set' : 'remove';
|
|
|
+ let meta, item, i, ilen;
|
|
|
+ if (mode === 'dataset') {
|
|
|
+ meta = this.getDatasetMeta(items[0].datasetIndex);
|
|
|
+ meta.controller['_' + prefix + 'DatasetHoverStyle']();
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = items.length; i < ilen; ++i) {
|
|
|
+ item = items[i];
|
|
|
+ const controller = item && this.getDatasetMeta(item.datasetIndex).controller;
|
|
|
+ if (controller) {
|
|
|
+ controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getActiveElements() {
|
|
|
+ return this._active || [];
|
|
|
+ }
|
|
|
+ setActiveElements(activeElements) {
|
|
|
+ const me = this;
|
|
|
+ const lastActive = me._active || [];
|
|
|
+ const active = activeElements.map(({datasetIndex, index}) => {
|
|
|
+ const meta = me.getDatasetMeta(datasetIndex);
|
|
|
+ if (!meta) {
|
|
|
+ throw new Error('No dataset found at index ' + datasetIndex);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ datasetIndex,
|
|
|
+ element: meta.data[index],
|
|
|
+ index,
|
|
|
+ };
|
|
|
+ });
|
|
|
+ const changed = !_elementsEqual(active, lastActive);
|
|
|
+ if (changed) {
|
|
|
+ me._active = active;
|
|
|
+ me._updateHoverStyles(active, lastActive);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ notifyPlugins(hook, args, filter) {
|
|
|
+ return this._plugins.notify(this, hook, args, filter);
|
|
|
+ }
|
|
|
+ _updateHoverStyles(active, lastActive, replay) {
|
|
|
+ const me = this;
|
|
|
+ const hoverOptions = me.options.hover;
|
|
|
+ const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index));
|
|
|
+ const deactivated = diff(lastActive, active);
|
|
|
+ const activated = replay ? active : diff(active, lastActive);
|
|
|
+ if (deactivated.length) {
|
|
|
+ me.updateHoverStyle(deactivated, hoverOptions.mode, false);
|
|
|
+ }
|
|
|
+ if (activated.length && hoverOptions.mode) {
|
|
|
+ me.updateHoverStyle(activated, hoverOptions.mode, true);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _eventHandler(e, replay) {
|
|
|
+ const me = this;
|
|
|
+ const args = {event: e, replay, cancelable: true};
|
|
|
+ const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.type);
|
|
|
+ if (me.notifyPlugins('beforeEvent', args, eventFilter) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const changed = me._handleEvent(e, replay);
|
|
|
+ args.cancelable = false;
|
|
|
+ me.notifyPlugins('afterEvent', args, eventFilter);
|
|
|
+ if (changed || args.changed) {
|
|
|
+ me.render();
|
|
|
+ }
|
|
|
+ return me;
|
|
|
+ }
|
|
|
+ _handleEvent(e, replay) {
|
|
|
+ const me = this;
|
|
|
+ const {_active: lastActive = [], options} = me;
|
|
|
+ const hoverOptions = options.hover;
|
|
|
+ const useFinalPosition = replay;
|
|
|
+ let active = [];
|
|
|
+ let changed = false;
|
|
|
+ let lastEvent = null;
|
|
|
+ if (e.type !== 'mouseout') {
|
|
|
+ active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition);
|
|
|
+ lastEvent = e.type === 'click' ? me._lastEvent : e;
|
|
|
+ }
|
|
|
+ me._lastEvent = null;
|
|
|
+ if (_isPointInArea(e, me.chartArea, me._minPadding)) {
|
|
|
+ callback(options.onHover, [e, active, me], me);
|
|
|
+ if (e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu') {
|
|
|
+ callback(options.onClick, [e, active, me], me);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ changed = !_elementsEqual(active, lastActive);
|
|
|
+ if (changed || replay) {
|
|
|
+ me._active = active;
|
|
|
+ me._updateHoverStyles(active, lastActive, replay);
|
|
|
+ }
|
|
|
+ me._lastEvent = lastEvent;
|
|
|
+ return changed;
|
|
|
+ }
|
|
|
+}
|
|
|
+const invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate());
|
|
|
+const enumerable = true;
|
|
|
+Object.defineProperties(Chart, {
|
|
|
+ defaults: {
|
|
|
+ enumerable,
|
|
|
+ value: defaults
|
|
|
+ },
|
|
|
+ instances: {
|
|
|
+ enumerable,
|
|
|
+ value: instances
|
|
|
+ },
|
|
|
+ overrides: {
|
|
|
+ enumerable,
|
|
|
+ value: overrides
|
|
|
+ },
|
|
|
+ registry: {
|
|
|
+ enumerable,
|
|
|
+ value: registry
|
|
|
+ },
|
|
|
+ version: {
|
|
|
+ enumerable,
|
|
|
+ value: version
|
|
|
+ },
|
|
|
+ getChart: {
|
|
|
+ enumerable,
|
|
|
+ value: getChart
|
|
|
+ },
|
|
|
+ register: {
|
|
|
+ enumerable,
|
|
|
+ value: (...items) => {
|
|
|
+ registry.add(...items);
|
|
|
+ invalidatePlugins();
|
|
|
+ }
|
|
|
+ },
|
|
|
+ unregister: {
|
|
|
+ enumerable,
|
|
|
+ value: (...items) => {
|
|
|
+ registry.remove(...items);
|
|
|
+ invalidatePlugins();
|
|
|
+ }
|
|
|
+ }
|
|
|
+});
|
|
|
+
|
|
|
+function abstract() {
|
|
|
+ throw new Error('This method is not implemented: Check that a complete date adapter is provided.');
|
|
|
+}
|
|
|
+class DateAdapter {
|
|
|
+ constructor(options) {
|
|
|
+ this.options = options || {};
|
|
|
+ }
|
|
|
+ formats() {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ parse(value, format) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ format(timestamp, format) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ add(timestamp, amount, unit) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ diff(a, b, unit) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ startOf(timestamp, unit, weekday) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+ endOf(timestamp, unit) {
|
|
|
+ return abstract();
|
|
|
+ }
|
|
|
+}
|
|
|
+DateAdapter.override = function(members) {
|
|
|
+ Object.assign(DateAdapter.prototype, members);
|
|
|
+};
|
|
|
+var _adapters = {
|
|
|
+ _date: DateAdapter
|
|
|
+};
|
|
|
+
|
|
|
+function getAllScaleValues(scale) {
|
|
|
+ if (!scale._cache.$bar) {
|
|
|
+ const metas = scale.getMatchingVisibleMetas('bar');
|
|
|
+ let values = [];
|
|
|
+ for (let i = 0, ilen = metas.length; i < ilen; i++) {
|
|
|
+ values = values.concat(metas[i].controller.getAllParsedValues(scale));
|
|
|
+ }
|
|
|
+ scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b));
|
|
|
+ }
|
|
|
+ return scale._cache.$bar;
|
|
|
+}
|
|
|
+function computeMinSampleSize(scale) {
|
|
|
+ const values = getAllScaleValues(scale);
|
|
|
+ let min = scale._length;
|
|
|
+ let i, ilen, curr, prev;
|
|
|
+ const updateMinAndPrev = () => {
|
|
|
+ if (curr === 32767 || curr === -32768) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (defined(prev)) {
|
|
|
+ min = Math.min(min, Math.abs(curr - prev) || min);
|
|
|
+ }
|
|
|
+ prev = curr;
|
|
|
+ };
|
|
|
+ for (i = 0, ilen = values.length; i < ilen; ++i) {
|
|
|
+ curr = scale.getPixelForValue(values[i]);
|
|
|
+ updateMinAndPrev();
|
|
|
+ }
|
|
|
+ prev = undefined;
|
|
|
+ for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) {
|
|
|
+ curr = scale.getPixelForTick(i);
|
|
|
+ updateMinAndPrev();
|
|
|
+ }
|
|
|
+ return min;
|
|
|
+}
|
|
|
+function computeFitCategoryTraits(index, ruler, options, stackCount) {
|
|
|
+ const thickness = options.barThickness;
|
|
|
+ let size, ratio;
|
|
|
+ if (isNullOrUndef(thickness)) {
|
|
|
+ size = ruler.min * options.categoryPercentage;
|
|
|
+ ratio = options.barPercentage;
|
|
|
+ } else {
|
|
|
+ size = thickness * stackCount;
|
|
|
+ ratio = 1;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ chunk: size / stackCount,
|
|
|
+ ratio,
|
|
|
+ start: ruler.pixels[index] - (size / 2)
|
|
|
+ };
|
|
|
+}
|
|
|
+function computeFlexCategoryTraits(index, ruler, options, stackCount) {
|
|
|
+ const pixels = ruler.pixels;
|
|
|
+ const curr = pixels[index];
|
|
|
+ let prev = index > 0 ? pixels[index - 1] : null;
|
|
|
+ let next = index < pixels.length - 1 ? pixels[index + 1] : null;
|
|
|
+ const percent = options.categoryPercentage;
|
|
|
+ if (prev === null) {
|
|
|
+ prev = curr - (next === null ? ruler.end - ruler.start : next - curr);
|
|
|
+ }
|
|
|
+ if (next === null) {
|
|
|
+ next = curr + curr - prev;
|
|
|
+ }
|
|
|
+ const start = curr - (curr - Math.min(prev, next)) / 2 * percent;
|
|
|
+ const size = Math.abs(next - prev) / 2 * percent;
|
|
|
+ return {
|
|
|
+ chunk: size / stackCount,
|
|
|
+ ratio: options.barPercentage,
|
|
|
+ start
|
|
|
+ };
|
|
|
+}
|
|
|
+function parseFloatBar(entry, item, vScale, i) {
|
|
|
+ const startValue = vScale.parse(entry[0], i);
|
|
|
+ const endValue = vScale.parse(entry[1], i);
|
|
|
+ const min = Math.min(startValue, endValue);
|
|
|
+ const max = Math.max(startValue, endValue);
|
|
|
+ let barStart = min;
|
|
|
+ let barEnd = max;
|
|
|
+ if (Math.abs(min) > Math.abs(max)) {
|
|
|
+ barStart = max;
|
|
|
+ barEnd = min;
|
|
|
+ }
|
|
|
+ item[vScale.axis] = barEnd;
|
|
|
+ item._custom = {
|
|
|
+ barStart,
|
|
|
+ barEnd,
|
|
|
+ start: startValue,
|
|
|
+ end: endValue,
|
|
|
+ min,
|
|
|
+ max
|
|
|
+ };
|
|
|
+}
|
|
|
+function parseValue(entry, item, vScale, i) {
|
|
|
+ if (isArray(entry)) {
|
|
|
+ parseFloatBar(entry, item, vScale, i);
|
|
|
+ } else {
|
|
|
+ item[vScale.axis] = vScale.parse(entry, i);
|
|
|
+ }
|
|
|
+ return item;
|
|
|
+}
|
|
|
+function parseArrayOrPrimitive(meta, data, start, count) {
|
|
|
+ const iScale = meta.iScale;
|
|
|
+ const vScale = meta.vScale;
|
|
|
+ const labels = iScale.getLabels();
|
|
|
+ const singleScale = iScale === vScale;
|
|
|
+ const parsed = [];
|
|
|
+ let i, ilen, item, entry;
|
|
|
+ for (i = start, ilen = start + count; i < ilen; ++i) {
|
|
|
+ entry = data[i];
|
|
|
+ item = {};
|
|
|
+ item[iScale.axis] = singleScale || iScale.parse(labels[i], i);
|
|
|
+ parsed.push(parseValue(entry, item, vScale, i));
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+}
|
|
|
+function isFloatBar(custom) {
|
|
|
+ return custom && custom.barStart !== undefined && custom.barEnd !== undefined;
|
|
|
+}
|
|
|
+function barSign(size, vScale, actualBase) {
|
|
|
+ if (size !== 0) {
|
|
|
+ return sign(size);
|
|
|
+ }
|
|
|
+ return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1);
|
|
|
+}
|
|
|
+function borderProps(properties) {
|
|
|
+ let reverse, start, end, top, bottom;
|
|
|
+ if (properties.horizontal) {
|
|
|
+ reverse = properties.base > properties.x;
|
|
|
+ start = 'left';
|
|
|
+ end = 'right';
|
|
|
+ } else {
|
|
|
+ reverse = properties.base < properties.y;
|
|
|
+ start = 'bottom';
|
|
|
+ end = 'top';
|
|
|
+ }
|
|
|
+ if (reverse) {
|
|
|
+ top = 'end';
|
|
|
+ bottom = 'start';
|
|
|
+ } else {
|
|
|
+ top = 'start';
|
|
|
+ bottom = 'end';
|
|
|
+ }
|
|
|
+ return {start, end, reverse, top, bottom};
|
|
|
+}
|
|
|
+function setBorderSkipped(properties, options, stack, index) {
|
|
|
+ let edge = options.borderSkipped;
|
|
|
+ const res = {};
|
|
|
+ if (!edge) {
|
|
|
+ properties.borderSkipped = res;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const {start, end, reverse, top, bottom} = borderProps(properties);
|
|
|
+ if (edge === 'middle' && stack) {
|
|
|
+ properties.enableBorderRadius = true;
|
|
|
+ if ((stack._top || 0) === index) {
|
|
|
+ edge = top;
|
|
|
+ } else if ((stack._bottom || 0) === index) {
|
|
|
+ edge = bottom;
|
|
|
+ } else {
|
|
|
+ res[parseEdge(bottom, start, end, reverse)] = true;
|
|
|
+ edge = top;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ res[parseEdge(edge, start, end, reverse)] = true;
|
|
|
+ properties.borderSkipped = res;
|
|
|
+}
|
|
|
+function parseEdge(edge, a, b, reverse) {
|
|
|
+ if (reverse) {
|
|
|
+ edge = swap(edge, a, b);
|
|
|
+ edge = startEnd(edge, b, a);
|
|
|
+ } else {
|
|
|
+ edge = startEnd(edge, a, b);
|
|
|
+ }
|
|
|
+ return edge;
|
|
|
+}
|
|
|
+function swap(orig, v1, v2) {
|
|
|
+ return orig === v1 ? v2 : orig === v2 ? v1 : orig;
|
|
|
+}
|
|
|
+function startEnd(v, start, end) {
|
|
|
+ return v === 'start' ? start : v === 'end' ? end : v;
|
|
|
+}
|
|
|
+class BarController extends DatasetController {
|
|
|
+ parsePrimitiveData(meta, data, start, count) {
|
|
|
+ return parseArrayOrPrimitive(meta, data, start, count);
|
|
|
+ }
|
|
|
+ parseArrayData(meta, data, start, count) {
|
|
|
+ return parseArrayOrPrimitive(meta, data, start, count);
|
|
|
+ }
|
|
|
+ parseObjectData(meta, data, start, count) {
|
|
|
+ const {iScale, vScale} = meta;
|
|
|
+ const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing;
|
|
|
+ const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey;
|
|
|
+ const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey;
|
|
|
+ const parsed = [];
|
|
|
+ let i, ilen, item, obj;
|
|
|
+ for (i = start, ilen = start + count; i < ilen; ++i) {
|
|
|
+ obj = data[i];
|
|
|
+ item = {};
|
|
|
+ item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i);
|
|
|
+ parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i));
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+ }
|
|
|
+ updateRangeFromParsed(range, scale, parsed, stack) {
|
|
|
+ super.updateRangeFromParsed(range, scale, parsed, stack);
|
|
|
+ const custom = parsed._custom;
|
|
|
+ if (custom && scale === this._cachedMeta.vScale) {
|
|
|
+ range.min = Math.min(range.min, custom.min);
|
|
|
+ range.max = Math.max(range.max, custom.max);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getMaxOverflow() {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const {iScale, vScale} = meta;
|
|
|
+ const parsed = me.getParsed(index);
|
|
|
+ const custom = parsed._custom;
|
|
|
+ const value = isFloatBar(custom)
|
|
|
+ ? '[' + custom.start + ', ' + custom.end + ']'
|
|
|
+ : '' + vScale.getLabelForValue(parsed[vScale.axis]);
|
|
|
+ return {
|
|
|
+ label: '' + iScale.getLabelForValue(parsed[iScale.axis]),
|
|
|
+ value
|
|
|
+ };
|
|
|
+ }
|
|
|
+ initialize() {
|
|
|
+ const me = this;
|
|
|
+ me.enableOptionSharing = true;
|
|
|
+ super.initialize();
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ meta.stack = me.getDataset().stack;
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ me.updateElements(meta.data, 0, meta.data.length, mode);
|
|
|
+ }
|
|
|
+ updateElements(bars, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ const {index, _cachedMeta: {vScale}} = me;
|
|
|
+ const base = vScale.getBasePixel();
|
|
|
+ const horizontal = vScale.isHorizontal();
|
|
|
+ const ruler = me._getRuler();
|
|
|
+ const firstOpts = me.resolveDataElementOptions(start, mode);
|
|
|
+ const sharedOptions = me.getSharedOptions(firstOpts);
|
|
|
+ const includeOptions = me.includeOptions(mode, sharedOptions);
|
|
|
+ me.updateSharedOptions(sharedOptions, mode, firstOpts);
|
|
|
+ for (let i = start; i < start + count; i++) {
|
|
|
+ const parsed = me.getParsed(i);
|
|
|
+ const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : me._calculateBarValuePixels(i);
|
|
|
+ const ipixels = me._calculateBarIndexPixels(i, ruler);
|
|
|
+ const stack = (parsed._stacks || {})[vScale.axis];
|
|
|
+ const properties = {
|
|
|
+ horizontal,
|
|
|
+ base: vpixels.base,
|
|
|
+ enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom),
|
|
|
+ x: horizontal ? vpixels.head : ipixels.center,
|
|
|
+ y: horizontal ? ipixels.center : vpixels.head,
|
|
|
+ height: horizontal ? ipixels.size : Math.abs(vpixels.size),
|
|
|
+ width: horizontal ? Math.abs(vpixels.size) : ipixels.size
|
|
|
+ };
|
|
|
+ if (includeOptions) {
|
|
|
+ properties.options = sharedOptions || me.resolveDataElementOptions(i, bars[i].active ? 'active' : mode);
|
|
|
+ }
|
|
|
+ setBorderSkipped(properties, properties.options || bars[i].options, stack, index);
|
|
|
+ me.updateElement(bars[i], i, properties, mode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _getStacks(last, dataIndex) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const iScale = meta.iScale;
|
|
|
+ const metasets = iScale.getMatchingVisibleMetas(me._type);
|
|
|
+ const stacked = iScale.options.stacked;
|
|
|
+ const ilen = metasets.length;
|
|
|
+ const stacks = [];
|
|
|
+ let i, item;
|
|
|
+ for (i = 0; i < ilen; ++i) {
|
|
|
+ item = metasets[i];
|
|
|
+ if (!item.controller.options.grouped) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (typeof dataIndex !== 'undefined') {
|
|
|
+ const val = item.controller.getParsed(dataIndex)[
|
|
|
+ item.controller._cachedMeta.vScale.axis
|
|
|
+ ];
|
|
|
+ if (isNullOrUndef(val) || isNaN(val)) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (stacked === false || stacks.indexOf(item.stack) === -1 ||
|
|
|
+ (stacked === undefined && item.stack === undefined)) {
|
|
|
+ stacks.push(item.stack);
|
|
|
+ }
|
|
|
+ if (item.index === last) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (!stacks.length) {
|
|
|
+ stacks.push(undefined);
|
|
|
+ }
|
|
|
+ return stacks;
|
|
|
+ }
|
|
|
+ _getStackCount(index) {
|
|
|
+ return this._getStacks(undefined, index).length;
|
|
|
+ }
|
|
|
+ _getStackIndex(datasetIndex, name, dataIndex) {
|
|
|
+ const stacks = this._getStacks(datasetIndex, dataIndex);
|
|
|
+ const index = (name !== undefined)
|
|
|
+ ? stacks.indexOf(name)
|
|
|
+ : -1;
|
|
|
+ return (index === -1)
|
|
|
+ ? stacks.length - 1
|
|
|
+ : index;
|
|
|
+ }
|
|
|
+ _getRuler() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const iScale = meta.iScale;
|
|
|
+ const pixels = [];
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = meta.data.length; i < ilen; ++i) {
|
|
|
+ pixels.push(iScale.getPixelForValue(me.getParsed(i)[iScale.axis], i));
|
|
|
+ }
|
|
|
+ const barThickness = opts.barThickness;
|
|
|
+ const min = barThickness || computeMinSampleSize(iScale);
|
|
|
+ return {
|
|
|
+ min,
|
|
|
+ pixels,
|
|
|
+ start: iScale._startPixel,
|
|
|
+ end: iScale._endPixel,
|
|
|
+ stackCount: me._getStackCount(),
|
|
|
+ scale: iScale,
|
|
|
+ grouped: opts.grouped,
|
|
|
+ ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage
|
|
|
+ };
|
|
|
+ }
|
|
|
+ _calculateBarValuePixels(index) {
|
|
|
+ const me = this;
|
|
|
+ const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = me;
|
|
|
+ const actualBase = baseValue || 0;
|
|
|
+ const parsed = me.getParsed(index);
|
|
|
+ const custom = parsed._custom;
|
|
|
+ const floating = isFloatBar(custom);
|
|
|
+ let value = parsed[vScale.axis];
|
|
|
+ let start = 0;
|
|
|
+ let length = _stacked ? me.applyStack(vScale, parsed, _stacked) : value;
|
|
|
+ let head, size;
|
|
|
+ if (length !== value) {
|
|
|
+ start = length - value;
|
|
|
+ length = value;
|
|
|
+ }
|
|
|
+ if (floating) {
|
|
|
+ value = custom.barStart;
|
|
|
+ length = custom.barEnd - custom.barStart;
|
|
|
+ if (value !== 0 && sign(value) !== sign(custom.barEnd)) {
|
|
|
+ start = 0;
|
|
|
+ }
|
|
|
+ start += value;
|
|
|
+ }
|
|
|
+ const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start;
|
|
|
+ let base = vScale.getPixelForValue(startValue);
|
|
|
+ if (me.chart.getDataVisibility(index)) {
|
|
|
+ head = vScale.getPixelForValue(start + length);
|
|
|
+ } else {
|
|
|
+ head = base;
|
|
|
+ }
|
|
|
+ size = head - base;
|
|
|
+ if (Math.abs(size) < minBarLength) {
|
|
|
+ size = barSign(size, vScale, actualBase) * minBarLength;
|
|
|
+ if (value === actualBase) {
|
|
|
+ base -= size / 2;
|
|
|
+ }
|
|
|
+ head = base + size;
|
|
|
+ }
|
|
|
+ if (base === vScale.getPixelForValue(actualBase)) {
|
|
|
+ const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2;
|
|
|
+ base += halfGrid;
|
|
|
+ size -= halfGrid;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ size,
|
|
|
+ base,
|
|
|
+ head,
|
|
|
+ center: head + size / 2
|
|
|
+ };
|
|
|
+ }
|
|
|
+ _calculateBarIndexPixels(index, ruler) {
|
|
|
+ const me = this;
|
|
|
+ const scale = ruler.scale;
|
|
|
+ const options = me.options;
|
|
|
+ const skipNull = options.skipNull;
|
|
|
+ const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity);
|
|
|
+ let center, size;
|
|
|
+ if (ruler.grouped) {
|
|
|
+ const stackCount = skipNull ? me._getStackCount(index) : ruler.stackCount;
|
|
|
+ const range = options.barThickness === 'flex'
|
|
|
+ ? computeFlexCategoryTraits(index, ruler, options, stackCount)
|
|
|
+ : computeFitCategoryTraits(index, ruler, options, stackCount);
|
|
|
+ const stackIndex = me._getStackIndex(me.index, me._cachedMeta.stack, skipNull ? index : undefined);
|
|
|
+ center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
|
|
|
+ size = Math.min(maxBarThickness, range.chunk * range.ratio);
|
|
|
+ } else {
|
|
|
+ center = scale.getPixelForValue(me.getParsed(index)[scale.axis], index);
|
|
|
+ size = Math.min(maxBarThickness, ruler.min * ruler.ratio);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ base: center - size / 2,
|
|
|
+ head: center + size / 2,
|
|
|
+ center,
|
|
|
+ size
|
|
|
+ };
|
|
|
+ }
|
|
|
+ draw() {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const vScale = meta.vScale;
|
|
|
+ const rects = meta.data;
|
|
|
+ const ilen = rects.length;
|
|
|
+ let i = 0;
|
|
|
+ for (; i < ilen; ++i) {
|
|
|
+ if (me.getParsed(i)[vScale.axis] !== null) {
|
|
|
+ rects[i].draw(me._ctx);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+BarController.id = 'bar';
|
|
|
+BarController.defaults = {
|
|
|
+ datasetElementType: false,
|
|
|
+ dataElementType: 'bar',
|
|
|
+ categoryPercentage: 0.8,
|
|
|
+ barPercentage: 0.9,
|
|
|
+ grouped: true,
|
|
|
+ animations: {
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: ['x', 'y', 'base', 'width', 'height']
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+BarController.overrides = {
|
|
|
+ scales: {
|
|
|
+ _index_: {
|
|
|
+ type: 'category',
|
|
|
+ offset: true,
|
|
|
+ grid: {
|
|
|
+ offset: true
|
|
|
+ }
|
|
|
+ },
|
|
|
+ _value_: {
|
|
|
+ type: 'linear',
|
|
|
+ beginAtZero: true,
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+class BubbleController extends DatasetController {
|
|
|
+ initialize() {
|
|
|
+ this.enableOptionSharing = true;
|
|
|
+ super.initialize();
|
|
|
+ }
|
|
|
+ parseObjectData(meta, data, start, count) {
|
|
|
+ const {xScale, yScale} = meta;
|
|
|
+ const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing;
|
|
|
+ const parsed = [];
|
|
|
+ let i, ilen, item;
|
|
|
+ for (i = start, ilen = start + count; i < ilen; ++i) {
|
|
|
+ item = data[i];
|
|
|
+ parsed.push({
|
|
|
+ x: xScale.parse(resolveObjectKey(item, xAxisKey), i),
|
|
|
+ y: yScale.parse(resolveObjectKey(item, yAxisKey), i),
|
|
|
+ _custom: item && item.r && +item.r
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return parsed;
|
|
|
+ }
|
|
|
+ getMaxOverflow() {
|
|
|
+ const {data, _parsed} = this._cachedMeta;
|
|
|
+ let max = 0;
|
|
|
+ for (let i = data.length - 1; i >= 0; --i) {
|
|
|
+ max = Math.max(max, data[i].size() / 2, _parsed[i]._custom);
|
|
|
+ }
|
|
|
+ return max > 0 && max;
|
|
|
+ }
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const {xScale, yScale} = meta;
|
|
|
+ const parsed = me.getParsed(index);
|
|
|
+ const x = xScale.getLabelForValue(parsed.x);
|
|
|
+ const y = yScale.getLabelForValue(parsed.y);
|
|
|
+ const r = parsed._custom;
|
|
|
+ return {
|
|
|
+ label: meta.label,
|
|
|
+ value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')'
|
|
|
+ };
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const points = me._cachedMeta.data;
|
|
|
+ me.updateElements(points, 0, points.length, mode);
|
|
|
+ }
|
|
|
+ updateElements(points, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ const {iScale, vScale} = me._cachedMeta;
|
|
|
+ const firstOpts = me.resolveDataElementOptions(start, mode);
|
|
|
+ const sharedOptions = me.getSharedOptions(firstOpts);
|
|
|
+ const includeOptions = me.includeOptions(mode, sharedOptions);
|
|
|
+ const iAxis = iScale.axis;
|
|
|
+ const vAxis = vScale.axis;
|
|
|
+ for (let i = start; i < start + count; i++) {
|
|
|
+ const point = points[i];
|
|
|
+ const parsed = !reset && me.getParsed(i);
|
|
|
+ const properties = {};
|
|
|
+ const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]);
|
|
|
+ const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]);
|
|
|
+ properties.skip = isNaN(iPixel) || isNaN(vPixel);
|
|
|
+ if (includeOptions) {
|
|
|
+ properties.options = me.resolveDataElementOptions(i, point.active ? 'active' : mode);
|
|
|
+ if (reset) {
|
|
|
+ properties.options.radius = 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me.updateElement(point, i, properties, mode);
|
|
|
+ }
|
|
|
+ me.updateSharedOptions(sharedOptions, mode, firstOpts);
|
|
|
+ }
|
|
|
+ resolveDataElementOptions(index, mode) {
|
|
|
+ const parsed = this.getParsed(index);
|
|
|
+ let values = super.resolveDataElementOptions(index, mode);
|
|
|
+ if (values.$shared) {
|
|
|
+ values = Object.assign({}, values, {$shared: false});
|
|
|
+ }
|
|
|
+ const radius = values.radius;
|
|
|
+ if (mode !== 'active') {
|
|
|
+ values.radius = 0;
|
|
|
+ }
|
|
|
+ values.radius += valueOrDefault(parsed && parsed._custom, radius);
|
|
|
+ return values;
|
|
|
+ }
|
|
|
+}
|
|
|
+BubbleController.id = 'bubble';
|
|
|
+BubbleController.defaults = {
|
|
|
+ datasetElementType: false,
|
|
|
+ dataElementType: 'point',
|
|
|
+ animations: {
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: ['x', 'y', 'borderWidth', 'radius']
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+BubbleController.overrides = {
|
|
|
+ scales: {
|
|
|
+ x: {
|
|
|
+ type: 'linear'
|
|
|
+ },
|
|
|
+ y: {
|
|
|
+ type: 'linear'
|
|
|
+ }
|
|
|
+ },
|
|
|
+ plugins: {
|
|
|
+ tooltip: {
|
|
|
+ callbacks: {
|
|
|
+ title() {
|
|
|
+ return '';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function getRatioAndOffset(rotation, circumference, cutout) {
|
|
|
+ let ratioX = 1;
|
|
|
+ let ratioY = 1;
|
|
|
+ let offsetX = 0;
|
|
|
+ let offsetY = 0;
|
|
|
+ if (circumference < TAU) {
|
|
|
+ const startAngle = rotation;
|
|
|
+ const endAngle = startAngle + circumference;
|
|
|
+ const startX = Math.cos(startAngle);
|
|
|
+ const startY = Math.sin(startAngle);
|
|
|
+ const endX = Math.cos(endAngle);
|
|
|
+ const endY = Math.sin(endAngle);
|
|
|
+ const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout);
|
|
|
+ const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout);
|
|
|
+ const maxX = calcMax(0, startX, endX);
|
|
|
+ const maxY = calcMax(HALF_PI, startY, endY);
|
|
|
+ const minX = calcMin(PI, startX, endX);
|
|
|
+ const minY = calcMin(PI + HALF_PI, startY, endY);
|
|
|
+ ratioX = (maxX - minX) / 2;
|
|
|
+ ratioY = (maxY - minY) / 2;
|
|
|
+ offsetX = -(maxX + minX) / 2;
|
|
|
+ offsetY = -(maxY + minY) / 2;
|
|
|
+ }
|
|
|
+ return {ratioX, ratioY, offsetX, offsetY};
|
|
|
+}
|
|
|
+class DoughnutController extends DatasetController {
|
|
|
+ constructor(chart, datasetIndex) {
|
|
|
+ super(chart, datasetIndex);
|
|
|
+ this.enableOptionSharing = true;
|
|
|
+ this.innerRadius = undefined;
|
|
|
+ this.outerRadius = undefined;
|
|
|
+ this.offsetX = undefined;
|
|
|
+ this.offsetY = undefined;
|
|
|
+ }
|
|
|
+ linkScales() {}
|
|
|
+ parse(start, count) {
|
|
|
+ const data = this.getDataset().data;
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ let i, ilen;
|
|
|
+ for (i = start, ilen = start + count; i < ilen; ++i) {
|
|
|
+ meta._parsed[i] = +data[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _getRotation() {
|
|
|
+ return toRadians(this.options.rotation - 90);
|
|
|
+ }
|
|
|
+ _getCircumference() {
|
|
|
+ return toRadians(this.options.circumference);
|
|
|
+ }
|
|
|
+ _getRotationExtents() {
|
|
|
+ let min = TAU;
|
|
|
+ let max = -TAU;
|
|
|
+ const me = this;
|
|
|
+ for (let i = 0; i < me.chart.data.datasets.length; ++i) {
|
|
|
+ if (me.chart.isDatasetVisible(i)) {
|
|
|
+ const controller = me.chart.getDatasetMeta(i).controller;
|
|
|
+ const rotation = controller._getRotation();
|
|
|
+ const circumference = controller._getCircumference();
|
|
|
+ min = Math.min(min, rotation);
|
|
|
+ max = Math.max(max, rotation + circumference);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ rotation: min,
|
|
|
+ circumference: max - min,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const chart = me.chart;
|
|
|
+ const {chartArea} = chart;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const arcs = meta.data;
|
|
|
+ const spacing = me.getMaxBorderWidth() + me.getMaxOffset(arcs) + me.options.spacing;
|
|
|
+ const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0);
|
|
|
+ const cutout = Math.min(toPercentage(me.options.cutout, maxSize), 1);
|
|
|
+ const chartWeight = me._getRingWeight(me.index);
|
|
|
+ const {circumference, rotation} = me._getRotationExtents();
|
|
|
+ const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout);
|
|
|
+ const maxWidth = (chartArea.width - spacing) / ratioX;
|
|
|
+ const maxHeight = (chartArea.height - spacing) / ratioY;
|
|
|
+ const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0);
|
|
|
+ const outerRadius = toDimension(me.options.radius, maxRadius);
|
|
|
+ const innerRadius = Math.max(outerRadius * cutout, 0);
|
|
|
+ const radiusLength = (outerRadius - innerRadius) / me._getVisibleDatasetWeightTotal();
|
|
|
+ me.offsetX = offsetX * outerRadius;
|
|
|
+ me.offsetY = offsetY * outerRadius;
|
|
|
+ meta.total = me.calculateTotal();
|
|
|
+ me.outerRadius = outerRadius - radiusLength * me._getRingWeightOffset(me.index);
|
|
|
+ me.innerRadius = Math.max(me.outerRadius - radiusLength * chartWeight, 0);
|
|
|
+ me.updateElements(arcs, 0, arcs.length, mode);
|
|
|
+ }
|
|
|
+ _circumference(i, reset) {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const circumference = me._getCircumference();
|
|
|
+ if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ return me.calculateCircumference(meta._parsed[i] * circumference / TAU);
|
|
|
+ }
|
|
|
+ updateElements(arcs, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ const chart = me.chart;
|
|
|
+ const chartArea = chart.chartArea;
|
|
|
+ const opts = chart.options;
|
|
|
+ const animationOpts = opts.animation;
|
|
|
+ const centerX = (chartArea.left + chartArea.right) / 2;
|
|
|
+ const centerY = (chartArea.top + chartArea.bottom) / 2;
|
|
|
+ const animateScale = reset && animationOpts.animateScale;
|
|
|
+ const innerRadius = animateScale ? 0 : me.innerRadius;
|
|
|
+ const outerRadius = animateScale ? 0 : me.outerRadius;
|
|
|
+ const firstOpts = me.resolveDataElementOptions(start, mode);
|
|
|
+ const sharedOptions = me.getSharedOptions(firstOpts);
|
|
|
+ const includeOptions = me.includeOptions(mode, sharedOptions);
|
|
|
+ let startAngle = me._getRotation();
|
|
|
+ let i;
|
|
|
+ for (i = 0; i < start; ++i) {
|
|
|
+ startAngle += me._circumference(i, reset);
|
|
|
+ }
|
|
|
+ for (i = start; i < start + count; ++i) {
|
|
|
+ const circumference = me._circumference(i, reset);
|
|
|
+ const arc = arcs[i];
|
|
|
+ const properties = {
|
|
|
+ x: centerX + me.offsetX,
|
|
|
+ y: centerY + me.offsetY,
|
|
|
+ startAngle,
|
|
|
+ endAngle: startAngle + circumference,
|
|
|
+ circumference,
|
|
|
+ outerRadius,
|
|
|
+ innerRadius
|
|
|
+ };
|
|
|
+ if (includeOptions) {
|
|
|
+ properties.options = sharedOptions || me.resolveDataElementOptions(i, arc.active ? 'active' : mode);
|
|
|
+ }
|
|
|
+ startAngle += circumference;
|
|
|
+ me.updateElement(arc, i, properties, mode);
|
|
|
+ }
|
|
|
+ me.updateSharedOptions(sharedOptions, mode, firstOpts);
|
|
|
+ }
|
|
|
+ calculateTotal() {
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ const metaData = meta.data;
|
|
|
+ let total = 0;
|
|
|
+ let i;
|
|
|
+ for (i = 0; i < metaData.length; i++) {
|
|
|
+ const value = meta._parsed[i];
|
|
|
+ if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) {
|
|
|
+ total += Math.abs(value);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return total;
|
|
|
+ }
|
|
|
+ calculateCircumference(value) {
|
|
|
+ const total = this._cachedMeta.total;
|
|
|
+ if (total > 0 && !isNaN(value)) {
|
|
|
+ return TAU * (Math.abs(value) / total);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const chart = me.chart;
|
|
|
+ const labels = chart.data.labels || [];
|
|
|
+ const value = formatNumber(meta._parsed[index], chart.options.locale);
|
|
|
+ return {
|
|
|
+ label: labels[index] || '',
|
|
|
+ value,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getMaxBorderWidth(arcs) {
|
|
|
+ const me = this;
|
|
|
+ let max = 0;
|
|
|
+ const chart = me.chart;
|
|
|
+ let i, ilen, meta, controller, options;
|
|
|
+ if (!arcs) {
|
|
|
+ for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
|
|
|
+ if (chart.isDatasetVisible(i)) {
|
|
|
+ meta = chart.getDatasetMeta(i);
|
|
|
+ arcs = meta.data;
|
|
|
+ controller = meta.controller;
|
|
|
+ if (controller !== me) {
|
|
|
+ controller.configure();
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (!arcs) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = arcs.length; i < ilen; ++i) {
|
|
|
+ options = controller.resolveDataElementOptions(i);
|
|
|
+ if (options.borderAlign !== 'inner') {
|
|
|
+ max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return max;
|
|
|
+ }
|
|
|
+ getMaxOffset(arcs) {
|
|
|
+ let max = 0;
|
|
|
+ for (let i = 0, ilen = arcs.length; i < ilen; ++i) {
|
|
|
+ const options = this.resolveDataElementOptions(i);
|
|
|
+ max = Math.max(max, options.offset || 0, options.hoverOffset || 0);
|
|
|
+ }
|
|
|
+ return max;
|
|
|
+ }
|
|
|
+ _getRingWeightOffset(datasetIndex) {
|
|
|
+ let ringWeightOffset = 0;
|
|
|
+ for (let i = 0; i < datasetIndex; ++i) {
|
|
|
+ if (this.chart.isDatasetVisible(i)) {
|
|
|
+ ringWeightOffset += this._getRingWeight(i);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return ringWeightOffset;
|
|
|
+ }
|
|
|
+ _getRingWeight(datasetIndex) {
|
|
|
+ return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0);
|
|
|
+ }
|
|
|
+ _getVisibleDatasetWeightTotal() {
|
|
|
+ return this._getRingWeightOffset(this.chart.data.datasets.length) || 1;
|
|
|
+ }
|
|
|
+}
|
|
|
+DoughnutController.id = 'doughnut';
|
|
|
+DoughnutController.defaults = {
|
|
|
+ datasetElementType: false,
|
|
|
+ dataElementType: 'arc',
|
|
|
+ animation: {
|
|
|
+ animateRotate: true,
|
|
|
+ animateScale: false
|
|
|
+ },
|
|
|
+ animations: {
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing']
|
|
|
+ },
|
|
|
+ },
|
|
|
+ cutout: '50%',
|
|
|
+ rotation: 0,
|
|
|
+ circumference: 360,
|
|
|
+ radius: '100%',
|
|
|
+ spacing: 0,
|
|
|
+ indexAxis: 'r',
|
|
|
+};
|
|
|
+DoughnutController.descriptors = {
|
|
|
+ _scriptable: (name) => name !== 'spacing',
|
|
|
+ _indexable: (name) => name !== 'spacing',
|
|
|
+};
|
|
|
+DoughnutController.overrides = {
|
|
|
+ aspectRatio: 1,
|
|
|
+ plugins: {
|
|
|
+ legend: {
|
|
|
+ labels: {
|
|
|
+ generateLabels(chart) {
|
|
|
+ const data = chart.data;
|
|
|
+ if (data.labels.length && data.datasets.length) {
|
|
|
+ const {labels: {pointStyle}} = chart.legend.options;
|
|
|
+ return data.labels.map((label, i) => {
|
|
|
+ const meta = chart.getDatasetMeta(0);
|
|
|
+ const style = meta.controller.getStyle(i);
|
|
|
+ return {
|
|
|
+ text: label,
|
|
|
+ fillStyle: style.backgroundColor,
|
|
|
+ strokeStyle: style.borderColor,
|
|
|
+ lineWidth: style.borderWidth,
|
|
|
+ pointStyle: pointStyle,
|
|
|
+ hidden: !chart.getDataVisibility(i),
|
|
|
+ index: i
|
|
|
+ };
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ },
|
|
|
+ onClick(e, legendItem, legend) {
|
|
|
+ legend.chart.toggleDataVisibility(legendItem.index);
|
|
|
+ legend.chart.update();
|
|
|
+ }
|
|
|
+ },
|
|
|
+ tooltip: {
|
|
|
+ callbacks: {
|
|
|
+ title() {
|
|
|
+ return '';
|
|
|
+ },
|
|
|
+ label(tooltipItem) {
|
|
|
+ let dataLabel = tooltipItem.label;
|
|
|
+ const value = ': ' + tooltipItem.formattedValue;
|
|
|
+ if (isArray(dataLabel)) {
|
|
|
+ dataLabel = dataLabel.slice();
|
|
|
+ dataLabel[0] += value;
|
|
|
+ } else {
|
|
|
+ dataLabel += value;
|
|
|
+ }
|
|
|
+ return dataLabel;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+class LineController extends DatasetController {
|
|
|
+ initialize() {
|
|
|
+ this.enableOptionSharing = true;
|
|
|
+ super.initialize();
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const {dataset: line, data: points = [], _dataset} = meta;
|
|
|
+ const animationsDisabled = me.chart._animationsDisabled;
|
|
|
+ let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);
|
|
|
+ me._drawStart = start;
|
|
|
+ me._drawCount = count;
|
|
|
+ if (scaleRangesChanged(meta)) {
|
|
|
+ start = 0;
|
|
|
+ count = points.length;
|
|
|
+ }
|
|
|
+ line._datasetIndex = me.index;
|
|
|
+ line._decimated = !!_dataset._decimated;
|
|
|
+ line.points = points;
|
|
|
+ const options = me.resolveDatasetElementOptions(mode);
|
|
|
+ if (!me.options.showLine) {
|
|
|
+ options.borderWidth = 0;
|
|
|
+ }
|
|
|
+ options.segment = me.options.segment;
|
|
|
+ me.updateElement(line, undefined, {
|
|
|
+ animated: !animationsDisabled,
|
|
|
+ options
|
|
|
+ }, mode);
|
|
|
+ me.updateElements(points, start, count, mode);
|
|
|
+ }
|
|
|
+ updateElements(points, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ const {iScale, vScale, _stacked} = me._cachedMeta;
|
|
|
+ const firstOpts = me.resolveDataElementOptions(start, mode);
|
|
|
+ const sharedOptions = me.getSharedOptions(firstOpts);
|
|
|
+ const includeOptions = me.includeOptions(mode, sharedOptions);
|
|
|
+ const iAxis = iScale.axis;
|
|
|
+ const vAxis = vScale.axis;
|
|
|
+ const spanGaps = me.options.spanGaps;
|
|
|
+ const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;
|
|
|
+ const directUpdate = me.chart._animationsDisabled || reset || mode === 'none';
|
|
|
+ let prevParsed = start > 0 && me.getParsed(start - 1);
|
|
|
+ for (let i = start; i < start + count; ++i) {
|
|
|
+ const point = points[i];
|
|
|
+ const parsed = me.getParsed(i);
|
|
|
+ const properties = directUpdate ? point : {};
|
|
|
+ const nullData = isNullOrUndef(parsed[vAxis]);
|
|
|
+ const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);
|
|
|
+ const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? me.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);
|
|
|
+ properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;
|
|
|
+ properties.stop = i > 0 && (parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;
|
|
|
+ properties.parsed = parsed;
|
|
|
+ if (includeOptions) {
|
|
|
+ properties.options = sharedOptions || me.resolveDataElementOptions(i, point.active ? 'active' : mode);
|
|
|
+ }
|
|
|
+ if (!directUpdate) {
|
|
|
+ me.updateElement(point, i, properties, mode);
|
|
|
+ }
|
|
|
+ prevParsed = parsed;
|
|
|
+ }
|
|
|
+ me.updateSharedOptions(sharedOptions, mode, firstOpts);
|
|
|
+ }
|
|
|
+ getMaxOverflow() {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const dataset = meta.dataset;
|
|
|
+ const border = dataset.options && dataset.options.borderWidth || 0;
|
|
|
+ const data = meta.data || [];
|
|
|
+ if (!data.length) {
|
|
|
+ return border;
|
|
|
+ }
|
|
|
+ const firstPoint = data[0].size(me.resolveDataElementOptions(0));
|
|
|
+ const lastPoint = data[data.length - 1].size(me.resolveDataElementOptions(data.length - 1));
|
|
|
+ return Math.max(border, firstPoint, lastPoint) / 2;
|
|
|
+ }
|
|
|
+ draw() {
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis);
|
|
|
+ super.draw();
|
|
|
+ }
|
|
|
+}
|
|
|
+LineController.id = 'line';
|
|
|
+LineController.defaults = {
|
|
|
+ datasetElementType: 'line',
|
|
|
+ dataElementType: 'point',
|
|
|
+ showLine: true,
|
|
|
+ spanGaps: false,
|
|
|
+};
|
|
|
+LineController.overrides = {
|
|
|
+ scales: {
|
|
|
+ _index_: {
|
|
|
+ type: 'category',
|
|
|
+ },
|
|
|
+ _value_: {
|
|
|
+ type: 'linear',
|
|
|
+ },
|
|
|
+ }
|
|
|
+};
|
|
|
+function getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) {
|
|
|
+ const pointCount = points.length;
|
|
|
+ let start = 0;
|
|
|
+ let count = pointCount;
|
|
|
+ if (meta._sorted) {
|
|
|
+ const {iScale, _parsed} = meta;
|
|
|
+ const axis = iScale.axis;
|
|
|
+ const {min, max, minDefined, maxDefined} = iScale.getUserBounds();
|
|
|
+ if (minDefined) {
|
|
|
+ start = _limitValue(Math.min(
|
|
|
+ _lookupByKey(_parsed, iScale.axis, min).lo,
|
|
|
+ animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo),
|
|
|
+ 0, pointCount - 1);
|
|
|
+ }
|
|
|
+ if (maxDefined) {
|
|
|
+ count = _limitValue(Math.max(
|
|
|
+ _lookupByKey(_parsed, iScale.axis, max).hi + 1,
|
|
|
+ animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1),
|
|
|
+ start, pointCount) - start;
|
|
|
+ } else {
|
|
|
+ count = pointCount - start;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {start, count};
|
|
|
+}
|
|
|
+function scaleRangesChanged(meta) {
|
|
|
+ const {xScale, yScale, _scaleRanges} = meta;
|
|
|
+ const newRanges = {
|
|
|
+ xmin: xScale.min,
|
|
|
+ xmax: xScale.max,
|
|
|
+ ymin: yScale.min,
|
|
|
+ ymax: yScale.max
|
|
|
+ };
|
|
|
+ if (!_scaleRanges) {
|
|
|
+ meta._scaleRanges = newRanges;
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ const changed = _scaleRanges.xmin !== xScale.min
|
|
|
+ || _scaleRanges.xmax !== xScale.max
|
|
|
+ || _scaleRanges.ymin !== yScale.min
|
|
|
+ || _scaleRanges.ymax !== yScale.max;
|
|
|
+ Object.assign(_scaleRanges, newRanges);
|
|
|
+ return changed;
|
|
|
+}
|
|
|
+
|
|
|
+class PolarAreaController extends DatasetController {
|
|
|
+ constructor(chart, datasetIndex) {
|
|
|
+ super(chart, datasetIndex);
|
|
|
+ this.innerRadius = undefined;
|
|
|
+ this.outerRadius = undefined;
|
|
|
+ }
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const chart = me.chart;
|
|
|
+ const labels = chart.data.labels || [];
|
|
|
+ const value = formatNumber(meta._parsed[index].r, chart.options.locale);
|
|
|
+ return {
|
|
|
+ label: labels[index] || '',
|
|
|
+ value,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const arcs = this._cachedMeta.data;
|
|
|
+ this._updateRadius();
|
|
|
+ this.updateElements(arcs, 0, arcs.length, mode);
|
|
|
+ }
|
|
|
+ _updateRadius() {
|
|
|
+ const me = this;
|
|
|
+ const chart = me.chart;
|
|
|
+ const chartArea = chart.chartArea;
|
|
|
+ const opts = chart.options;
|
|
|
+ const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
|
|
|
+ const outerRadius = Math.max(minSize / 2, 0);
|
|
|
+ const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
|
|
|
+ const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount();
|
|
|
+ me.outerRadius = outerRadius - (radiusLength * me.index);
|
|
|
+ me.innerRadius = me.outerRadius - radiusLength;
|
|
|
+ }
|
|
|
+ updateElements(arcs, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ const chart = me.chart;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ const opts = chart.options;
|
|
|
+ const animationOpts = opts.animation;
|
|
|
+ const scale = me._cachedMeta.rScale;
|
|
|
+ const centerX = scale.xCenter;
|
|
|
+ const centerY = scale.yCenter;
|
|
|
+ const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI;
|
|
|
+ let angle = datasetStartAngle;
|
|
|
+ let i;
|
|
|
+ const defaultAngle = 360 / me.countVisibleElements();
|
|
|
+ for (i = 0; i < start; ++i) {
|
|
|
+ angle += me._computeAngle(i, mode, defaultAngle);
|
|
|
+ }
|
|
|
+ for (i = start; i < start + count; i++) {
|
|
|
+ const arc = arcs[i];
|
|
|
+ let startAngle = angle;
|
|
|
+ let endAngle = angle + me._computeAngle(i, mode, defaultAngle);
|
|
|
+ let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(dataset.data[i]) : 0;
|
|
|
+ angle = endAngle;
|
|
|
+ if (reset) {
|
|
|
+ if (animationOpts.animateScale) {
|
|
|
+ outerRadius = 0;
|
|
|
+ }
|
|
|
+ if (animationOpts.animateRotate) {
|
|
|
+ startAngle = endAngle = datasetStartAngle;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ const properties = {
|
|
|
+ x: centerX,
|
|
|
+ y: centerY,
|
|
|
+ innerRadius: 0,
|
|
|
+ outerRadius,
|
|
|
+ startAngle,
|
|
|
+ endAngle,
|
|
|
+ options: me.resolveDataElementOptions(i, arc.active ? 'active' : mode)
|
|
|
+ };
|
|
|
+ me.updateElement(arc, i, properties, mode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ countVisibleElements() {
|
|
|
+ const dataset = this.getDataset();
|
|
|
+ const meta = this._cachedMeta;
|
|
|
+ let count = 0;
|
|
|
+ meta.data.forEach((element, index) => {
|
|
|
+ if (!isNaN(dataset.data[index]) && this.chart.getDataVisibility(index)) {
|
|
|
+ count++;
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return count;
|
|
|
+ }
|
|
|
+ _computeAngle(index, mode, defaultAngle) {
|
|
|
+ return this.chart.getDataVisibility(index)
|
|
|
+ ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle)
|
|
|
+ : 0;
|
|
|
+ }
|
|
|
+}
|
|
|
+PolarAreaController.id = 'polarArea';
|
|
|
+PolarAreaController.defaults = {
|
|
|
+ dataElementType: 'arc',
|
|
|
+ animation: {
|
|
|
+ animateRotate: true,
|
|
|
+ animateScale: true
|
|
|
+ },
|
|
|
+ animations: {
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius']
|
|
|
+ },
|
|
|
+ },
|
|
|
+ indexAxis: 'r',
|
|
|
+ startAngle: 0,
|
|
|
+};
|
|
|
+PolarAreaController.overrides = {
|
|
|
+ aspectRatio: 1,
|
|
|
+ plugins: {
|
|
|
+ legend: {
|
|
|
+ labels: {
|
|
|
+ generateLabels(chart) {
|
|
|
+ const data = chart.data;
|
|
|
+ if (data.labels.length && data.datasets.length) {
|
|
|
+ const {labels: {pointStyle}} = chart.legend.options;
|
|
|
+ return data.labels.map((label, i) => {
|
|
|
+ const meta = chart.getDatasetMeta(0);
|
|
|
+ const style = meta.controller.getStyle(i);
|
|
|
+ return {
|
|
|
+ text: label,
|
|
|
+ fillStyle: style.backgroundColor,
|
|
|
+ strokeStyle: style.borderColor,
|
|
|
+ lineWidth: style.borderWidth,
|
|
|
+ pointStyle: pointStyle,
|
|
|
+ hidden: !chart.getDataVisibility(i),
|
|
|
+ index: i
|
|
|
+ };
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+ },
|
|
|
+ onClick(e, legendItem, legend) {
|
|
|
+ legend.chart.toggleDataVisibility(legendItem.index);
|
|
|
+ legend.chart.update();
|
|
|
+ }
|
|
|
+ },
|
|
|
+ tooltip: {
|
|
|
+ callbacks: {
|
|
|
+ title() {
|
|
|
+ return '';
|
|
|
+ },
|
|
|
+ label(context) {
|
|
|
+ return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+ scales: {
|
|
|
+ r: {
|
|
|
+ type: 'radialLinear',
|
|
|
+ angleLines: {
|
|
|
+ display: false
|
|
|
+ },
|
|
|
+ beginAtZero: true,
|
|
|
+ grid: {
|
|
|
+ circular: true
|
|
|
+ },
|
|
|
+ pointLabels: {
|
|
|
+ display: false
|
|
|
+ },
|
|
|
+ startAngle: 0
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+class PieController extends DoughnutController {
|
|
|
+}
|
|
|
+PieController.id = 'pie';
|
|
|
+PieController.defaults = {
|
|
|
+ cutout: 0,
|
|
|
+ rotation: 0,
|
|
|
+ circumference: 360,
|
|
|
+ radius: '100%'
|
|
|
+};
|
|
|
+
|
|
|
+class RadarController extends DatasetController {
|
|
|
+ getLabelAndValue(index) {
|
|
|
+ const me = this;
|
|
|
+ const vScale = me._cachedMeta.vScale;
|
|
|
+ const parsed = me.getParsed(index);
|
|
|
+ return {
|
|
|
+ label: vScale.getLabels()[index],
|
|
|
+ value: '' + vScale.getLabelForValue(parsed[vScale.axis])
|
|
|
+ };
|
|
|
+ }
|
|
|
+ update(mode) {
|
|
|
+ const me = this;
|
|
|
+ const meta = me._cachedMeta;
|
|
|
+ const line = meta.dataset;
|
|
|
+ const points = meta.data || [];
|
|
|
+ const labels = meta.iScale.getLabels();
|
|
|
+ line.points = points;
|
|
|
+ if (mode !== 'resize') {
|
|
|
+ const options = me.resolveDatasetElementOptions(mode);
|
|
|
+ if (!me.options.showLine) {
|
|
|
+ options.borderWidth = 0;
|
|
|
+ }
|
|
|
+ const properties = {
|
|
|
+ _loop: true,
|
|
|
+ _fullLoop: labels.length === points.length,
|
|
|
+ options
|
|
|
+ };
|
|
|
+ me.updateElement(line, undefined, properties, mode);
|
|
|
+ }
|
|
|
+ me.updateElements(points, 0, points.length, mode);
|
|
|
+ }
|
|
|
+ updateElements(points, start, count, mode) {
|
|
|
+ const me = this;
|
|
|
+ const dataset = me.getDataset();
|
|
|
+ const scale = me._cachedMeta.rScale;
|
|
|
+ const reset = mode === 'reset';
|
|
|
+ for (let i = start; i < start + count; i++) {
|
|
|
+ const point = points[i];
|
|
|
+ const options = me.resolveDataElementOptions(i, point.active ? 'active' : mode);
|
|
|
+ const pointPosition = scale.getPointPositionForValue(i, dataset.data[i]);
|
|
|
+ const x = reset ? scale.xCenter : pointPosition.x;
|
|
|
+ const y = reset ? scale.yCenter : pointPosition.y;
|
|
|
+ const properties = {
|
|
|
+ x,
|
|
|
+ y,
|
|
|
+ angle: pointPosition.angle,
|
|
|
+ skip: isNaN(x) || isNaN(y),
|
|
|
+ options
|
|
|
+ };
|
|
|
+ me.updateElement(point, i, properties, mode);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+RadarController.id = 'radar';
|
|
|
+RadarController.defaults = {
|
|
|
+ datasetElementType: 'line',
|
|
|
+ dataElementType: 'point',
|
|
|
+ indexAxis: 'r',
|
|
|
+ showLine: true,
|
|
|
+ elements: {
|
|
|
+ line: {
|
|
|
+ fill: 'start'
|
|
|
+ }
|
|
|
+ },
|
|
|
+};
|
|
|
+RadarController.overrides = {
|
|
|
+ aspectRatio: 1,
|
|
|
+ scales: {
|
|
|
+ r: {
|
|
|
+ type: 'radialLinear',
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+class ScatterController extends LineController {
|
|
|
+}
|
|
|
+ScatterController.id = 'scatter';
|
|
|
+ScatterController.defaults = {
|
|
|
+ showLine: false,
|
|
|
+ fill: false
|
|
|
+};
|
|
|
+ScatterController.overrides = {
|
|
|
+ interaction: {
|
|
|
+ mode: 'point'
|
|
|
+ },
|
|
|
+ plugins: {
|
|
|
+ tooltip: {
|
|
|
+ callbacks: {
|
|
|
+ title() {
|
|
|
+ return '';
|
|
|
+ },
|
|
|
+ label(item) {
|
|
|
+ return '(' + item.label + ', ' + item.formattedValue + ')';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+ scales: {
|
|
|
+ x: {
|
|
|
+ type: 'linear'
|
|
|
+ },
|
|
|
+ y: {
|
|
|
+ type: 'linear'
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+var controllers = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+BarController: BarController,
|
|
|
+BubbleController: BubbleController,
|
|
|
+DoughnutController: DoughnutController,
|
|
|
+LineController: LineController,
|
|
|
+PolarAreaController: PolarAreaController,
|
|
|
+PieController: PieController,
|
|
|
+RadarController: RadarController,
|
|
|
+ScatterController: ScatterController
|
|
|
+});
|
|
|
+
|
|
|
+function clipArc(ctx, element, endAngle) {
|
|
|
+ const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element;
|
|
|
+ let angleMargin = pixelMargin / outerRadius;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin);
|
|
|
+ if (innerRadius > pixelMargin) {
|
|
|
+ angleMargin = pixelMargin / innerRadius;
|
|
|
+ ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true);
|
|
|
+ } else {
|
|
|
+ ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI);
|
|
|
+ }
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.clip();
|
|
|
+}
|
|
|
+function toRadiusCorners(value) {
|
|
|
+ return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']);
|
|
|
+}
|
|
|
+function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) {
|
|
|
+ const o = toRadiusCorners(arc.options.borderRadius);
|
|
|
+ const halfThickness = (outerRadius - innerRadius) / 2;
|
|
|
+ const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2);
|
|
|
+ const computeOuterLimit = (val) => {
|
|
|
+ const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2;
|
|
|
+ return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit));
|
|
|
+ };
|
|
|
+ return {
|
|
|
+ outerStart: computeOuterLimit(o.outerStart),
|
|
|
+ outerEnd: computeOuterLimit(o.outerEnd),
|
|
|
+ innerStart: _limitValue(o.innerStart, 0, innerLimit),
|
|
|
+ innerEnd: _limitValue(o.innerEnd, 0, innerLimit),
|
|
|
+ };
|
|
|
+}
|
|
|
+function rThetaToXY(r, theta, x, y) {
|
|
|
+ return {
|
|
|
+ x: x + r * Math.cos(theta),
|
|
|
+ y: y + r * Math.sin(theta),
|
|
|
+ };
|
|
|
+}
|
|
|
+function pathArc(ctx, element, offset, spacing, end) {
|
|
|
+ const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element;
|
|
|
+ const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0);
|
|
|
+ const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0;
|
|
|
+ let spacingOffset = 0;
|
|
|
+ const alpha = end - start;
|
|
|
+ if (spacing) {
|
|
|
+ const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0;
|
|
|
+ const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0;
|
|
|
+ const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2;
|
|
|
+ const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha;
|
|
|
+ spacingOffset = (alpha - adjustedAngle) / 2;
|
|
|
+ }
|
|
|
+ const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius;
|
|
|
+ const angleOffset = (alpha - beta) / 2;
|
|
|
+ const startAngle = start + angleOffset + spacingOffset;
|
|
|
+ const endAngle = end - angleOffset - spacingOffset;
|
|
|
+ const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle);
|
|
|
+ const outerStartAdjustedRadius = outerRadius - outerStart;
|
|
|
+ const outerEndAdjustedRadius = outerRadius - outerEnd;
|
|
|
+ const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius;
|
|
|
+ const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius;
|
|
|
+ const innerStartAdjustedRadius = innerRadius + innerStart;
|
|
|
+ const innerEndAdjustedRadius = innerRadius + innerEnd;
|
|
|
+ const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius;
|
|
|
+ const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle);
|
|
|
+ if (outerEnd > 0) {
|
|
|
+ const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y);
|
|
|
+ ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI);
|
|
|
+ }
|
|
|
+ const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y);
|
|
|
+ ctx.lineTo(p4.x, p4.y);
|
|
|
+ if (innerEnd > 0) {
|
|
|
+ const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y);
|
|
|
+ ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI);
|
|
|
+ }
|
|
|
+ ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true);
|
|
|
+ if (innerStart > 0) {
|
|
|
+ const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y);
|
|
|
+ ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI);
|
|
|
+ }
|
|
|
+ const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y);
|
|
|
+ ctx.lineTo(p8.x, p8.y);
|
|
|
+ if (outerStart > 0) {
|
|
|
+ const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y);
|
|
|
+ ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle);
|
|
|
+ }
|
|
|
+ ctx.closePath();
|
|
|
+}
|
|
|
+function drawArc(ctx, element, offset, spacing) {
|
|
|
+ const {fullCircles, startAngle, circumference} = element;
|
|
|
+ let endAngle = element.endAngle;
|
|
|
+ if (fullCircles) {
|
|
|
+ pathArc(ctx, element, offset, spacing, startAngle + TAU);
|
|
|
+ for (let i = 0; i < fullCircles; ++i) {
|
|
|
+ ctx.fill();
|
|
|
+ }
|
|
|
+ if (!isNaN(circumference)) {
|
|
|
+ endAngle = startAngle + circumference % TAU;
|
|
|
+ if (circumference % TAU === 0) {
|
|
|
+ endAngle += TAU;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ pathArc(ctx, element, offset, spacing, endAngle);
|
|
|
+ ctx.fill();
|
|
|
+ return endAngle;
|
|
|
+}
|
|
|
+function drawFullCircleBorders(ctx, element, inner) {
|
|
|
+ const {x, y, startAngle, pixelMargin, fullCircles} = element;
|
|
|
+ const outerRadius = Math.max(element.outerRadius - pixelMargin, 0);
|
|
|
+ const innerRadius = element.innerRadius + pixelMargin;
|
|
|
+ let i;
|
|
|
+ if (inner) {
|
|
|
+ clipArc(ctx, element, startAngle + TAU);
|
|
|
+ }
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true);
|
|
|
+ for (i = 0; i < fullCircles; ++i) {
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU);
|
|
|
+ for (i = 0; i < fullCircles; ++i) {
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+}
|
|
|
+function drawBorder(ctx, element, offset, spacing, endAngle) {
|
|
|
+ const {options} = element;
|
|
|
+ const inner = options.borderAlign === 'inner';
|
|
|
+ if (!options.borderWidth) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (inner) {
|
|
|
+ ctx.lineWidth = options.borderWidth * 2;
|
|
|
+ ctx.lineJoin = 'round';
|
|
|
+ } else {
|
|
|
+ ctx.lineWidth = options.borderWidth;
|
|
|
+ ctx.lineJoin = 'bevel';
|
|
|
+ }
|
|
|
+ if (element.fullCircles) {
|
|
|
+ drawFullCircleBorders(ctx, element, inner);
|
|
|
+ }
|
|
|
+ if (inner) {
|
|
|
+ clipArc(ctx, element, endAngle);
|
|
|
+ }
|
|
|
+ pathArc(ctx, element, offset, spacing, endAngle);
|
|
|
+ ctx.stroke();
|
|
|
+}
|
|
|
+class ArcElement extends Element {
|
|
|
+ constructor(cfg) {
|
|
|
+ super();
|
|
|
+ this.options = undefined;
|
|
|
+ this.circumference = undefined;
|
|
|
+ this.startAngle = undefined;
|
|
|
+ this.endAngle = undefined;
|
|
|
+ this.innerRadius = undefined;
|
|
|
+ this.outerRadius = undefined;
|
|
|
+ this.pixelMargin = 0;
|
|
|
+ this.fullCircles = 0;
|
|
|
+ if (cfg) {
|
|
|
+ Object.assign(this, cfg);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ inRange(chartX, chartY, useFinalPosition) {
|
|
|
+ const point = this.getProps(['x', 'y'], useFinalPosition);
|
|
|
+ const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY});
|
|
|
+ const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([
|
|
|
+ 'startAngle',
|
|
|
+ 'endAngle',
|
|
|
+ 'innerRadius',
|
|
|
+ 'outerRadius',
|
|
|
+ 'circumference'
|
|
|
+ ], useFinalPosition);
|
|
|
+ const rAdjust = this.options.spacing / 2;
|
|
|
+ const betweenAngles = circumference >= TAU || _angleBetween(angle, startAngle, endAngle);
|
|
|
+ const withinRadius = (distance >= innerRadius + rAdjust && distance <= outerRadius + rAdjust);
|
|
|
+ return (betweenAngles && withinRadius);
|
|
|
+ }
|
|
|
+ getCenterPoint(useFinalPosition) {
|
|
|
+ const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([
|
|
|
+ 'x',
|
|
|
+ 'y',
|
|
|
+ 'startAngle',
|
|
|
+ 'endAngle',
|
|
|
+ 'innerRadius',
|
|
|
+ 'outerRadius',
|
|
|
+ 'circumference',
|
|
|
+ ], useFinalPosition);
|
|
|
+ const {offset, spacing} = this.options;
|
|
|
+ const halfAngle = (startAngle + endAngle) / 2;
|
|
|
+ const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2;
|
|
|
+ return {
|
|
|
+ x: x + Math.cos(halfAngle) * halfRadius,
|
|
|
+ y: y + Math.sin(halfAngle) * halfRadius
|
|
|
+ };
|
|
|
+ }
|
|
|
+ tooltipPosition(useFinalPosition) {
|
|
|
+ return this.getCenterPoint(useFinalPosition);
|
|
|
+ }
|
|
|
+ draw(ctx) {
|
|
|
+ const me = this;
|
|
|
+ const {options, circumference} = me;
|
|
|
+ const offset = (options.offset || 0) / 2;
|
|
|
+ const spacing = (options.spacing || 0) / 2;
|
|
|
+ me.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0;
|
|
|
+ me.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0;
|
|
|
+ if (circumference === 0 || me.innerRadius < 0 || me.outerRadius < 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ let radiusOffset = 0;
|
|
|
+ if (offset) {
|
|
|
+ radiusOffset = offset / 2;
|
|
|
+ const halfAngle = (me.startAngle + me.endAngle) / 2;
|
|
|
+ ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset);
|
|
|
+ if (me.circumference >= PI) {
|
|
|
+ radiusOffset = offset;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ctx.fillStyle = options.backgroundColor;
|
|
|
+ ctx.strokeStyle = options.borderColor;
|
|
|
+ const endAngle = drawArc(ctx, me, radiusOffset, spacing);
|
|
|
+ drawBorder(ctx, me, radiusOffset, spacing, endAngle);
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+}
|
|
|
+ArcElement.id = 'arc';
|
|
|
+ArcElement.defaults = {
|
|
|
+ borderAlign: 'center',
|
|
|
+ borderColor: '#fff',
|
|
|
+ borderRadius: 0,
|
|
|
+ borderWidth: 2,
|
|
|
+ offset: 0,
|
|
|
+ spacing: 0,
|
|
|
+ angle: undefined,
|
|
|
+};
|
|
|
+ArcElement.defaultRoutes = {
|
|
|
+ backgroundColor: 'backgroundColor'
|
|
|
+};
|
|
|
+
|
|
|
+function setStyle(ctx, options, style = options) {
|
|
|
+ ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle);
|
|
|
+ ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash));
|
|
|
+ ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset);
|
|
|
+ ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle);
|
|
|
+ ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth);
|
|
|
+ ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor);
|
|
|
+}
|
|
|
+function lineTo(ctx, previous, target) {
|
|
|
+ ctx.lineTo(target.x, target.y);
|
|
|
+}
|
|
|
+function getLineMethod(options) {
|
|
|
+ if (options.stepped) {
|
|
|
+ return _steppedLineTo;
|
|
|
+ }
|
|
|
+ if (options.tension || options.cubicInterpolationMode === 'monotone') {
|
|
|
+ return _bezierCurveTo;
|
|
|
+ }
|
|
|
+ return lineTo;
|
|
|
+}
|
|
|
+function pathVars(points, segment, params = {}) {
|
|
|
+ const count = points.length;
|
|
|
+ const {start: paramsStart = 0, end: paramsEnd = count - 1} = params;
|
|
|
+ const {start: segmentStart, end: segmentEnd} = segment;
|
|
|
+ const start = Math.max(paramsStart, segmentStart);
|
|
|
+ const end = Math.min(paramsEnd, segmentEnd);
|
|
|
+ const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd;
|
|
|
+ return {
|
|
|
+ count,
|
|
|
+ start,
|
|
|
+ loop: segment.loop,
|
|
|
+ ilen: end < start && !outside ? count + end - start : end - start
|
|
|
+ };
|
|
|
+}
|
|
|
+function pathSegment(ctx, line, segment, params) {
|
|
|
+ const {points, options} = line;
|
|
|
+ const {count, start, loop, ilen} = pathVars(points, segment, params);
|
|
|
+ const lineMethod = getLineMethod(options);
|
|
|
+ let {move = true, reverse} = params || {};
|
|
|
+ let i, point, prev;
|
|
|
+ for (i = 0; i <= ilen; ++i) {
|
|
|
+ point = points[(start + (reverse ? ilen - i : i)) % count];
|
|
|
+ if (point.skip) {
|
|
|
+ continue;
|
|
|
+ } else if (move) {
|
|
|
+ ctx.moveTo(point.x, point.y);
|
|
|
+ move = false;
|
|
|
+ } else {
|
|
|
+ lineMethod(ctx, prev, point, reverse, options.stepped);
|
|
|
+ }
|
|
|
+ prev = point;
|
|
|
+ }
|
|
|
+ if (loop) {
|
|
|
+ point = points[(start + (reverse ? ilen : 0)) % count];
|
|
|
+ lineMethod(ctx, prev, point, reverse, options.stepped);
|
|
|
+ }
|
|
|
+ return !!loop;
|
|
|
+}
|
|
|
+function fastPathSegment(ctx, line, segment, params) {
|
|
|
+ const points = line.points;
|
|
|
+ const {count, start, ilen} = pathVars(points, segment, params);
|
|
|
+ const {move = true, reverse} = params || {};
|
|
|
+ let avgX = 0;
|
|
|
+ let countX = 0;
|
|
|
+ let i, point, prevX, minY, maxY, lastY;
|
|
|
+ const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count;
|
|
|
+ const drawX = () => {
|
|
|
+ if (minY !== maxY) {
|
|
|
+ ctx.lineTo(avgX, maxY);
|
|
|
+ ctx.lineTo(avgX, minY);
|
|
|
+ ctx.lineTo(avgX, lastY);
|
|
|
+ }
|
|
|
+ };
|
|
|
+ if (move) {
|
|
|
+ point = points[pointIndex(0)];
|
|
|
+ ctx.moveTo(point.x, point.y);
|
|
|
+ }
|
|
|
+ for (i = 0; i <= ilen; ++i) {
|
|
|
+ point = points[pointIndex(i)];
|
|
|
+ if (point.skip) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const x = point.x;
|
|
|
+ const y = point.y;
|
|
|
+ const truncX = x | 0;
|
|
|
+ if (truncX === prevX) {
|
|
|
+ if (y < minY) {
|
|
|
+ minY = y;
|
|
|
+ } else if (y > maxY) {
|
|
|
+ maxY = y;
|
|
|
+ }
|
|
|
+ avgX = (countX * avgX + x) / ++countX;
|
|
|
+ } else {
|
|
|
+ drawX();
|
|
|
+ ctx.lineTo(x, y);
|
|
|
+ prevX = truncX;
|
|
|
+ countX = 0;
|
|
|
+ minY = maxY = y;
|
|
|
+ }
|
|
|
+ lastY = y;
|
|
|
+ }
|
|
|
+ drawX();
|
|
|
+}
|
|
|
+function _getSegmentMethod(line) {
|
|
|
+ const opts = line.options;
|
|
|
+ const borderDash = opts.borderDash && opts.borderDash.length;
|
|
|
+ const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash;
|
|
|
+ return useFastPath ? fastPathSegment : pathSegment;
|
|
|
+}
|
|
|
+function _getInterpolationMethod(options) {
|
|
|
+ if (options.stepped) {
|
|
|
+ return _steppedInterpolation;
|
|
|
+ }
|
|
|
+ if (options.tension || options.cubicInterpolationMode === 'monotone') {
|
|
|
+ return _bezierInterpolation;
|
|
|
+ }
|
|
|
+ return _pointInLine;
|
|
|
+}
|
|
|
+function strokePathWithCache(ctx, line, start, count) {
|
|
|
+ let path = line._path;
|
|
|
+ if (!path) {
|
|
|
+ path = line._path = new Path2D();
|
|
|
+ if (line.path(path, start, count)) {
|
|
|
+ path.closePath();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ setStyle(ctx, line.options);
|
|
|
+ ctx.stroke(path);
|
|
|
+}
|
|
|
+function strokePathDirect(ctx, line, start, count) {
|
|
|
+ const {segments, options} = line;
|
|
|
+ const segmentMethod = _getSegmentMethod(line);
|
|
|
+ for (const segment of segments) {
|
|
|
+ setStyle(ctx, options, segment.style);
|
|
|
+ ctx.beginPath();
|
|
|
+ if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) {
|
|
|
+ ctx.closePath();
|
|
|
+ }
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+}
|
|
|
+const usePath2D = typeof Path2D === 'function';
|
|
|
+function draw(ctx, line, start, count) {
|
|
|
+ if (usePath2D && line.segments.length === 1) {
|
|
|
+ strokePathWithCache(ctx, line, start, count);
|
|
|
+ } else {
|
|
|
+ strokePathDirect(ctx, line, start, count);
|
|
|
+ }
|
|
|
+}
|
|
|
+class LineElement extends Element {
|
|
|
+ constructor(cfg) {
|
|
|
+ super();
|
|
|
+ this.animated = true;
|
|
|
+ this.options = undefined;
|
|
|
+ this._loop = undefined;
|
|
|
+ this._fullLoop = undefined;
|
|
|
+ this._path = undefined;
|
|
|
+ this._points = undefined;
|
|
|
+ this._segments = undefined;
|
|
|
+ this._decimated = false;
|
|
|
+ this._pointsUpdated = false;
|
|
|
+ this._datasetIndex = undefined;
|
|
|
+ if (cfg) {
|
|
|
+ Object.assign(this, cfg);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ updateControlPoints(chartArea, indexAxis) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !me._pointsUpdated) {
|
|
|
+ const loop = options.spanGaps ? me._loop : me._fullLoop;
|
|
|
+ _updateBezierControlPoints(me._points, options, chartArea, loop, indexAxis);
|
|
|
+ me._pointsUpdated = true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ set points(points) {
|
|
|
+ const me = this;
|
|
|
+ me._points = points;
|
|
|
+ delete me._segments;
|
|
|
+ delete me._path;
|
|
|
+ me._pointsUpdated = false;
|
|
|
+ }
|
|
|
+ get points() {
|
|
|
+ return this._points;
|
|
|
+ }
|
|
|
+ get segments() {
|
|
|
+ return this._segments || (this._segments = _computeSegments(this, this.options.segment));
|
|
|
+ }
|
|
|
+ first() {
|
|
|
+ const segments = this.segments;
|
|
|
+ const points = this.points;
|
|
|
+ return segments.length && points[segments[0].start];
|
|
|
+ }
|
|
|
+ last() {
|
|
|
+ const segments = this.segments;
|
|
|
+ const points = this.points;
|
|
|
+ const count = segments.length;
|
|
|
+ return count && points[segments[count - 1].end];
|
|
|
+ }
|
|
|
+ interpolate(point, property) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const value = point[property];
|
|
|
+ const points = me.points;
|
|
|
+ const segments = _boundSegments(me, {property, start: value, end: value});
|
|
|
+ if (!segments.length) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const result = [];
|
|
|
+ const _interpolate = _getInterpolationMethod(options);
|
|
|
+ let i, ilen;
|
|
|
+ for (i = 0, ilen = segments.length; i < ilen; ++i) {
|
|
|
+ const {start, end} = segments[i];
|
|
|
+ const p1 = points[start];
|
|
|
+ const p2 = points[end];
|
|
|
+ if (p1 === p2) {
|
|
|
+ result.push(p1);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const t = Math.abs((value - p1[property]) / (p2[property] - p1[property]));
|
|
|
+ const interpolated = _interpolate(p1, p2, t, options.stepped);
|
|
|
+ interpolated[property] = point[property];
|
|
|
+ result.push(interpolated);
|
|
|
+ }
|
|
|
+ return result.length === 1 ? result[0] : result;
|
|
|
+ }
|
|
|
+ pathSegment(ctx, segment, params) {
|
|
|
+ const segmentMethod = _getSegmentMethod(this);
|
|
|
+ return segmentMethod(ctx, this, segment, params);
|
|
|
+ }
|
|
|
+ path(ctx, start, count) {
|
|
|
+ const me = this;
|
|
|
+ const segments = me.segments;
|
|
|
+ const segmentMethod = _getSegmentMethod(me);
|
|
|
+ let loop = me._loop;
|
|
|
+ start = start || 0;
|
|
|
+ count = count || (me.points.length - start);
|
|
|
+ for (const segment of segments) {
|
|
|
+ loop &= segmentMethod(ctx, me, segment, {start, end: start + count - 1});
|
|
|
+ }
|
|
|
+ return !!loop;
|
|
|
+ }
|
|
|
+ draw(ctx, chartArea, start, count) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options || {};
|
|
|
+ const points = me.points || [];
|
|
|
+ if (!points.length || !options.borderWidth) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ draw(ctx, me, start, count);
|
|
|
+ ctx.restore();
|
|
|
+ if (me.animated) {
|
|
|
+ me._pointsUpdated = false;
|
|
|
+ me._path = undefined;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+LineElement.id = 'line';
|
|
|
+LineElement.defaults = {
|
|
|
+ borderCapStyle: 'butt',
|
|
|
+ borderDash: [],
|
|
|
+ borderDashOffset: 0,
|
|
|
+ borderJoinStyle: 'miter',
|
|
|
+ borderWidth: 3,
|
|
|
+ capBezierPoints: true,
|
|
|
+ cubicInterpolationMode: 'default',
|
|
|
+ fill: false,
|
|
|
+ spanGaps: false,
|
|
|
+ stepped: false,
|
|
|
+ tension: 0,
|
|
|
+};
|
|
|
+LineElement.defaultRoutes = {
|
|
|
+ backgroundColor: 'backgroundColor',
|
|
|
+ borderColor: 'borderColor'
|
|
|
+};
|
|
|
+LineElement.descriptors = {
|
|
|
+ _scriptable: true,
|
|
|
+ _indexable: (name) => name !== 'borderDash' && name !== 'fill',
|
|
|
+};
|
|
|
+
|
|
|
+function inRange$1(el, pos, axis, useFinalPosition) {
|
|
|
+ const options = el.options;
|
|
|
+ const {[axis]: value} = el.getProps([axis], useFinalPosition);
|
|
|
+ return (Math.abs(pos - value) < options.radius + options.hitRadius);
|
|
|
+}
|
|
|
+class PointElement extends Element {
|
|
|
+ constructor(cfg) {
|
|
|
+ super();
|
|
|
+ this.options = undefined;
|
|
|
+ this.parsed = undefined;
|
|
|
+ this.skip = undefined;
|
|
|
+ this.stop = undefined;
|
|
|
+ if (cfg) {
|
|
|
+ Object.assign(this, cfg);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ inRange(mouseX, mouseY, useFinalPosition) {
|
|
|
+ const options = this.options;
|
|
|
+ const {x, y} = this.getProps(['x', 'y'], useFinalPosition);
|
|
|
+ return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2));
|
|
|
+ }
|
|
|
+ inXRange(mouseX, useFinalPosition) {
|
|
|
+ return inRange$1(this, mouseX, 'x', useFinalPosition);
|
|
|
+ }
|
|
|
+ inYRange(mouseY, useFinalPosition) {
|
|
|
+ return inRange$1(this, mouseY, 'y', useFinalPosition);
|
|
|
+ }
|
|
|
+ getCenterPoint(useFinalPosition) {
|
|
|
+ const {x, y} = this.getProps(['x', 'y'], useFinalPosition);
|
|
|
+ return {x, y};
|
|
|
+ }
|
|
|
+ size(options) {
|
|
|
+ options = options || this.options || {};
|
|
|
+ let radius = options.radius || 0;
|
|
|
+ radius = Math.max(radius, radius && options.hoverRadius || 0);
|
|
|
+ const borderWidth = radius && options.borderWidth || 0;
|
|
|
+ return (radius + borderWidth) * 2;
|
|
|
+ }
|
|
|
+ draw(ctx, area) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ if (me.skip || options.radius < 0.1 || !_isPointInArea(me, area, me.size(options) / 2)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.strokeStyle = options.borderColor;
|
|
|
+ ctx.lineWidth = options.borderWidth;
|
|
|
+ ctx.fillStyle = options.backgroundColor;
|
|
|
+ drawPoint(ctx, options, me.x, me.y);
|
|
|
+ }
|
|
|
+ getRange() {
|
|
|
+ const options = this.options || {};
|
|
|
+ return options.radius + options.hitRadius;
|
|
|
+ }
|
|
|
+}
|
|
|
+PointElement.id = 'point';
|
|
|
+PointElement.defaults = {
|
|
|
+ borderWidth: 1,
|
|
|
+ hitRadius: 1,
|
|
|
+ hoverBorderWidth: 1,
|
|
|
+ hoverRadius: 4,
|
|
|
+ pointStyle: 'circle',
|
|
|
+ radius: 3,
|
|
|
+ rotation: 0
|
|
|
+};
|
|
|
+PointElement.defaultRoutes = {
|
|
|
+ backgroundColor: 'backgroundColor',
|
|
|
+ borderColor: 'borderColor'
|
|
|
+};
|
|
|
+
|
|
|
+function getBarBounds(bar, useFinalPosition) {
|
|
|
+ const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition);
|
|
|
+ let left, right, top, bottom, half;
|
|
|
+ if (bar.horizontal) {
|
|
|
+ half = height / 2;
|
|
|
+ left = Math.min(x, base);
|
|
|
+ right = Math.max(x, base);
|
|
|
+ top = y - half;
|
|
|
+ bottom = y + half;
|
|
|
+ } else {
|
|
|
+ half = width / 2;
|
|
|
+ left = x - half;
|
|
|
+ right = x + half;
|
|
|
+ top = Math.min(y, base);
|
|
|
+ bottom = Math.max(y, base);
|
|
|
+ }
|
|
|
+ return {left, top, right, bottom};
|
|
|
+}
|
|
|
+function skipOrLimit(skip, value, min, max) {
|
|
|
+ return skip ? 0 : _limitValue(value, min, max);
|
|
|
+}
|
|
|
+function parseBorderWidth(bar, maxW, maxH) {
|
|
|
+ const value = bar.options.borderWidth;
|
|
|
+ const skip = bar.borderSkipped;
|
|
|
+ const o = toTRBL(value);
|
|
|
+ return {
|
|
|
+ t: skipOrLimit(skip.top, o.top, 0, maxH),
|
|
|
+ r: skipOrLimit(skip.right, o.right, 0, maxW),
|
|
|
+ b: skipOrLimit(skip.bottom, o.bottom, 0, maxH),
|
|
|
+ l: skipOrLimit(skip.left, o.left, 0, maxW)
|
|
|
+ };
|
|
|
+}
|
|
|
+function parseBorderRadius(bar, maxW, maxH) {
|
|
|
+ const {enableBorderRadius} = bar.getProps(['enableBorderRadius']);
|
|
|
+ const value = bar.options.borderRadius;
|
|
|
+ const o = toTRBLCorners(value);
|
|
|
+ const maxR = Math.min(maxW, maxH);
|
|
|
+ const skip = bar.borderSkipped;
|
|
|
+ const enableBorder = enableBorderRadius || isObject(value);
|
|
|
+ return {
|
|
|
+ topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR),
|
|
|
+ topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR),
|
|
|
+ bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR),
|
|
|
+ bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR)
|
|
|
+ };
|
|
|
+}
|
|
|
+function boundingRects(bar) {
|
|
|
+ const bounds = getBarBounds(bar);
|
|
|
+ const width = bounds.right - bounds.left;
|
|
|
+ const height = bounds.bottom - bounds.top;
|
|
|
+ const border = parseBorderWidth(bar, width / 2, height / 2);
|
|
|
+ const radius = parseBorderRadius(bar, width / 2, height / 2);
|
|
|
+ return {
|
|
|
+ outer: {
|
|
|
+ x: bounds.left,
|
|
|
+ y: bounds.top,
|
|
|
+ w: width,
|
|
|
+ h: height,
|
|
|
+ radius
|
|
|
+ },
|
|
|
+ inner: {
|
|
|
+ x: bounds.left + border.l,
|
|
|
+ y: bounds.top + border.t,
|
|
|
+ w: width - border.l - border.r,
|
|
|
+ h: height - border.t - border.b,
|
|
|
+ radius: {
|
|
|
+ topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)),
|
|
|
+ topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)),
|
|
|
+ bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)),
|
|
|
+ bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)),
|
|
|
+ }
|
|
|
+ }
|
|
|
+ };
|
|
|
+}
|
|
|
+function inRange(bar, x, y, useFinalPosition) {
|
|
|
+ const skipX = x === null;
|
|
|
+ const skipY = y === null;
|
|
|
+ const skipBoth = skipX && skipY;
|
|
|
+ const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition);
|
|
|
+ return bounds
|
|
|
+ && (skipX || x >= bounds.left && x <= bounds.right)
|
|
|
+ && (skipY || y >= bounds.top && y <= bounds.bottom);
|
|
|
+}
|
|
|
+function hasRadius(radius) {
|
|
|
+ return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight;
|
|
|
+}
|
|
|
+function addNormalRectPath(ctx, rect) {
|
|
|
+ ctx.rect(rect.x, rect.y, rect.w, rect.h);
|
|
|
+}
|
|
|
+function inflateRect(rect, amount, refRect = {}) {
|
|
|
+ const x = rect.x !== refRect.x ? -amount : 0;
|
|
|
+ const y = rect.y !== refRect.y ? -amount : 0;
|
|
|
+ const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x;
|
|
|
+ const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y;
|
|
|
+ return {
|
|
|
+ x: rect.x + x,
|
|
|
+ y: rect.y + y,
|
|
|
+ w: rect.w + w,
|
|
|
+ h: rect.h + h,
|
|
|
+ radius: rect.radius
|
|
|
+ };
|
|
|
+}
|
|
|
+class BarElement extends Element {
|
|
|
+ constructor(cfg) {
|
|
|
+ super();
|
|
|
+ this.options = undefined;
|
|
|
+ this.horizontal = undefined;
|
|
|
+ this.base = undefined;
|
|
|
+ this.width = undefined;
|
|
|
+ this.height = undefined;
|
|
|
+ if (cfg) {
|
|
|
+ Object.assign(this, cfg);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ draw(ctx) {
|
|
|
+ const options = this.options;
|
|
|
+ const {inner, outer} = boundingRects(this);
|
|
|
+ const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath;
|
|
|
+ const inflateAmount = 0.33;
|
|
|
+ ctx.save();
|
|
|
+ if (outer.w !== inner.w || outer.h !== inner.h) {
|
|
|
+ ctx.beginPath();
|
|
|
+ addRectPath(ctx, inflateRect(outer, inflateAmount, inner));
|
|
|
+ ctx.clip();
|
|
|
+ addRectPath(ctx, inflateRect(inner, -inflateAmount, outer));
|
|
|
+ ctx.fillStyle = options.borderColor;
|
|
|
+ ctx.fill('evenodd');
|
|
|
+ }
|
|
|
+ ctx.beginPath();
|
|
|
+ addRectPath(ctx, inflateRect(inner, inflateAmount, outer));
|
|
|
+ ctx.fillStyle = options.backgroundColor;
|
|
|
+ ctx.fill();
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ inRange(mouseX, mouseY, useFinalPosition) {
|
|
|
+ return inRange(this, mouseX, mouseY, useFinalPosition);
|
|
|
+ }
|
|
|
+ inXRange(mouseX, useFinalPosition) {
|
|
|
+ return inRange(this, mouseX, null, useFinalPosition);
|
|
|
+ }
|
|
|
+ inYRange(mouseY, useFinalPosition) {
|
|
|
+ return inRange(this, null, mouseY, useFinalPosition);
|
|
|
+ }
|
|
|
+ getCenterPoint(useFinalPosition) {
|
|
|
+ const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition);
|
|
|
+ return {
|
|
|
+ x: horizontal ? (x + base) / 2 : x,
|
|
|
+ y: horizontal ? y : (y + base) / 2
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getRange(axis) {
|
|
|
+ return axis === 'x' ? this.width / 2 : this.height / 2;
|
|
|
+ }
|
|
|
+}
|
|
|
+BarElement.id = 'bar';
|
|
|
+BarElement.defaults = {
|
|
|
+ borderSkipped: 'start',
|
|
|
+ borderWidth: 0,
|
|
|
+ borderRadius: 0,
|
|
|
+ enableBorderRadius: true,
|
|
|
+ pointStyle: undefined
|
|
|
+};
|
|
|
+BarElement.defaultRoutes = {
|
|
|
+ backgroundColor: 'backgroundColor',
|
|
|
+ borderColor: 'borderColor'
|
|
|
+};
|
|
|
+
|
|
|
+var elements = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+ArcElement: ArcElement,
|
|
|
+LineElement: LineElement,
|
|
|
+PointElement: PointElement,
|
|
|
+BarElement: BarElement
|
|
|
+});
|
|
|
+
|
|
|
+function lttbDecimation(data, start, count, availableWidth, options) {
|
|
|
+ const samples = options.samples || availableWidth;
|
|
|
+ if (samples >= count) {
|
|
|
+ return data.slice(start, start + count);
|
|
|
+ }
|
|
|
+ const decimated = [];
|
|
|
+ const bucketWidth = (count - 2) / (samples - 2);
|
|
|
+ let sampledIndex = 0;
|
|
|
+ const endIndex = start + count - 1;
|
|
|
+ let a = start;
|
|
|
+ let i, maxAreaPoint, maxArea, area, nextA;
|
|
|
+ decimated[sampledIndex++] = data[a];
|
|
|
+ for (i = 0; i < samples - 2; i++) {
|
|
|
+ let avgX = 0;
|
|
|
+ let avgY = 0;
|
|
|
+ let j;
|
|
|
+ const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start;
|
|
|
+ const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start;
|
|
|
+ const avgRangeLength = avgRangeEnd - avgRangeStart;
|
|
|
+ for (j = avgRangeStart; j < avgRangeEnd; j++) {
|
|
|
+ avgX += data[j].x;
|
|
|
+ avgY += data[j].y;
|
|
|
+ }
|
|
|
+ avgX /= avgRangeLength;
|
|
|
+ avgY /= avgRangeLength;
|
|
|
+ const rangeOffs = Math.floor(i * bucketWidth) + 1 + start;
|
|
|
+ const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start;
|
|
|
+ const {x: pointAx, y: pointAy} = data[a];
|
|
|
+ maxArea = area = -1;
|
|
|
+ for (j = rangeOffs; j < rangeTo; j++) {
|
|
|
+ area = 0.5 * Math.abs(
|
|
|
+ (pointAx - avgX) * (data[j].y - pointAy) -
|
|
|
+ (pointAx - data[j].x) * (avgY - pointAy)
|
|
|
+ );
|
|
|
+ if (area > maxArea) {
|
|
|
+ maxArea = area;
|
|
|
+ maxAreaPoint = data[j];
|
|
|
+ nextA = j;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ decimated[sampledIndex++] = maxAreaPoint;
|
|
|
+ a = nextA;
|
|
|
+ }
|
|
|
+ decimated[sampledIndex++] = data[endIndex];
|
|
|
+ return decimated;
|
|
|
+}
|
|
|
+function minMaxDecimation(data, start, count, availableWidth) {
|
|
|
+ let avgX = 0;
|
|
|
+ let countX = 0;
|
|
|
+ let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY;
|
|
|
+ const decimated = [];
|
|
|
+ const endIndex = start + count - 1;
|
|
|
+ const xMin = data[start].x;
|
|
|
+ const xMax = data[endIndex].x;
|
|
|
+ const dx = xMax - xMin;
|
|
|
+ for (i = start; i < start + count; ++i) {
|
|
|
+ point = data[i];
|
|
|
+ x = (point.x - xMin) / dx * availableWidth;
|
|
|
+ y = point.y;
|
|
|
+ const truncX = x | 0;
|
|
|
+ if (truncX === prevX) {
|
|
|
+ if (y < minY) {
|
|
|
+ minY = y;
|
|
|
+ minIndex = i;
|
|
|
+ } else if (y > maxY) {
|
|
|
+ maxY = y;
|
|
|
+ maxIndex = i;
|
|
|
+ }
|
|
|
+ avgX = (countX * avgX + point.x) / ++countX;
|
|
|
+ } else {
|
|
|
+ const lastIndex = i - 1;
|
|
|
+ if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) {
|
|
|
+ const intermediateIndex1 = Math.min(minIndex, maxIndex);
|
|
|
+ const intermediateIndex2 = Math.max(minIndex, maxIndex);
|
|
|
+ if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) {
|
|
|
+ decimated.push({
|
|
|
+ ...data[intermediateIndex1],
|
|
|
+ x: avgX,
|
|
|
+ });
|
|
|
+ }
|
|
|
+ if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) {
|
|
|
+ decimated.push({
|
|
|
+ ...data[intermediateIndex2],
|
|
|
+ x: avgX
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (i > 0 && lastIndex !== startIndex) {
|
|
|
+ decimated.push(data[lastIndex]);
|
|
|
+ }
|
|
|
+ decimated.push(point);
|
|
|
+ prevX = truncX;
|
|
|
+ countX = 0;
|
|
|
+ minY = maxY = y;
|
|
|
+ minIndex = maxIndex = startIndex = i;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return decimated;
|
|
|
+}
|
|
|
+function cleanDecimatedDataset(dataset) {
|
|
|
+ if (dataset._decimated) {
|
|
|
+ const data = dataset._data;
|
|
|
+ delete dataset._decimated;
|
|
|
+ delete dataset._data;
|
|
|
+ Object.defineProperty(dataset, 'data', {value: data});
|
|
|
+ }
|
|
|
+}
|
|
|
+function cleanDecimatedData(chart) {
|
|
|
+ chart.data.datasets.forEach((dataset) => {
|
|
|
+ cleanDecimatedDataset(dataset);
|
|
|
+ });
|
|
|
+}
|
|
|
+function getStartAndCountOfVisiblePointsSimplified(meta, points) {
|
|
|
+ const pointCount = points.length;
|
|
|
+ let start = 0;
|
|
|
+ let count;
|
|
|
+ const {iScale} = meta;
|
|
|
+ const {min, max, minDefined, maxDefined} = iScale.getUserBounds();
|
|
|
+ if (minDefined) {
|
|
|
+ start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1);
|
|
|
+ }
|
|
|
+ if (maxDefined) {
|
|
|
+ count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start;
|
|
|
+ } else {
|
|
|
+ count = pointCount - start;
|
|
|
+ }
|
|
|
+ return {start, count};
|
|
|
+}
|
|
|
+var plugin_decimation = {
|
|
|
+ id: 'decimation',
|
|
|
+ defaults: {
|
|
|
+ algorithm: 'min-max',
|
|
|
+ enabled: false,
|
|
|
+ },
|
|
|
+ beforeElementsUpdate: (chart, args, options) => {
|
|
|
+ if (!options.enabled) {
|
|
|
+ cleanDecimatedData(chart);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const availableWidth = chart.width;
|
|
|
+ chart.data.datasets.forEach((dataset, datasetIndex) => {
|
|
|
+ const {_data, indexAxis} = dataset;
|
|
|
+ const meta = chart.getDatasetMeta(datasetIndex);
|
|
|
+ const data = _data || dataset.data;
|
|
|
+ if (resolve([indexAxis, chart.options.indexAxis]) === 'y') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (meta.type !== 'line') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const xAxis = chart.scales[meta.xAxisID];
|
|
|
+ if (xAxis.type !== 'linear' && xAxis.type !== 'time') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (chart.options.parsing) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data);
|
|
|
+ const threshold = options.threshold || 4 * availableWidth;
|
|
|
+ if (count <= threshold) {
|
|
|
+ cleanDecimatedDataset(dataset);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (isNullOrUndef(_data)) {
|
|
|
+ dataset._data = data;
|
|
|
+ delete dataset.data;
|
|
|
+ Object.defineProperty(dataset, 'data', {
|
|
|
+ configurable: true,
|
|
|
+ enumerable: true,
|
|
|
+ get: function() {
|
|
|
+ return this._decimated;
|
|
|
+ },
|
|
|
+ set: function(d) {
|
|
|
+ this._data = d;
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ let decimated;
|
|
|
+ switch (options.algorithm) {
|
|
|
+ case 'lttb':
|
|
|
+ decimated = lttbDecimation(data, start, count, availableWidth, options);
|
|
|
+ break;
|
|
|
+ case 'min-max':
|
|
|
+ decimated = minMaxDecimation(data, start, count, availableWidth);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`);
|
|
|
+ }
|
|
|
+ dataset._decimated = decimated;
|
|
|
+ });
|
|
|
+ },
|
|
|
+ destroy(chart) {
|
|
|
+ cleanDecimatedData(chart);
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function getLineByIndex(chart, index) {
|
|
|
+ const meta = chart.getDatasetMeta(index);
|
|
|
+ const visible = meta && chart.isDatasetVisible(index);
|
|
|
+ return visible ? meta.dataset : null;
|
|
|
+}
|
|
|
+function parseFillOption(line) {
|
|
|
+ const options = line.options;
|
|
|
+ const fillOption = options.fill;
|
|
|
+ let fill = valueOrDefault(fillOption && fillOption.target, fillOption);
|
|
|
+ if (fill === undefined) {
|
|
|
+ fill = !!options.backgroundColor;
|
|
|
+ }
|
|
|
+ if (fill === false || fill === null) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ if (fill === true) {
|
|
|
+ return 'origin';
|
|
|
+ }
|
|
|
+ return fill;
|
|
|
+}
|
|
|
+function decodeFill(line, index, count) {
|
|
|
+ const fill = parseFillOption(line);
|
|
|
+ if (isObject(fill)) {
|
|
|
+ return isNaN(fill.value) ? false : fill;
|
|
|
+ }
|
|
|
+ let target = parseFloat(fill);
|
|
|
+ if (isNumberFinite(target) && Math.floor(target) === target) {
|
|
|
+ if (fill[0] === '-' || fill[0] === '+') {
|
|
|
+ target = index + target;
|
|
|
+ }
|
|
|
+ if (target === index || target < 0 || target >= count) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ return target;
|
|
|
+ }
|
|
|
+ return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill;
|
|
|
+}
|
|
|
+function computeLinearBoundary(source) {
|
|
|
+ const {scale = {}, fill} = source;
|
|
|
+ let target = null;
|
|
|
+ let horizontal;
|
|
|
+ if (fill === 'start') {
|
|
|
+ target = scale.bottom;
|
|
|
+ } else if (fill === 'end') {
|
|
|
+ target = scale.top;
|
|
|
+ } else if (isObject(fill)) {
|
|
|
+ target = scale.getPixelForValue(fill.value);
|
|
|
+ } else if (scale.getBasePixel) {
|
|
|
+ target = scale.getBasePixel();
|
|
|
+ }
|
|
|
+ if (isNumberFinite(target)) {
|
|
|
+ horizontal = scale.isHorizontal();
|
|
|
+ return {
|
|
|
+ x: horizontal ? target : null,
|
|
|
+ y: horizontal ? null : target
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return null;
|
|
|
+}
|
|
|
+class simpleArc {
|
|
|
+ constructor(opts) {
|
|
|
+ this.x = opts.x;
|
|
|
+ this.y = opts.y;
|
|
|
+ this.radius = opts.radius;
|
|
|
+ }
|
|
|
+ pathSegment(ctx, bounds, opts) {
|
|
|
+ const {x, y, radius} = this;
|
|
|
+ bounds = bounds || {start: 0, end: TAU};
|
|
|
+ ctx.arc(x, y, radius, bounds.end, bounds.start, true);
|
|
|
+ return !opts.bounds;
|
|
|
+ }
|
|
|
+ interpolate(point) {
|
|
|
+ const {x, y, radius} = this;
|
|
|
+ const angle = point.angle;
|
|
|
+ return {
|
|
|
+ x: x + Math.cos(angle) * radius,
|
|
|
+ y: y + Math.sin(angle) * radius,
|
|
|
+ angle
|
|
|
+ };
|
|
|
+ }
|
|
|
+}
|
|
|
+function computeCircularBoundary(source) {
|
|
|
+ const {scale, fill} = source;
|
|
|
+ const options = scale.options;
|
|
|
+ const length = scale.getLabels().length;
|
|
|
+ const target = [];
|
|
|
+ const start = options.reverse ? scale.max : scale.min;
|
|
|
+ const end = options.reverse ? scale.min : scale.max;
|
|
|
+ let i, center, value;
|
|
|
+ if (fill === 'start') {
|
|
|
+ value = start;
|
|
|
+ } else if (fill === 'end') {
|
|
|
+ value = end;
|
|
|
+ } else if (isObject(fill)) {
|
|
|
+ value = fill.value;
|
|
|
+ } else {
|
|
|
+ value = scale.getBaseValue();
|
|
|
+ }
|
|
|
+ if (options.grid.circular) {
|
|
|
+ center = scale.getPointPositionForValue(0, start);
|
|
|
+ return new simpleArc({
|
|
|
+ x: center.x,
|
|
|
+ y: center.y,
|
|
|
+ radius: scale.getDistanceFromCenterForValue(value)
|
|
|
+ });
|
|
|
+ }
|
|
|
+ for (i = 0; i < length; ++i) {
|
|
|
+ target.push(scale.getPointPositionForValue(i, value));
|
|
|
+ }
|
|
|
+ return target;
|
|
|
+}
|
|
|
+function computeBoundary(source) {
|
|
|
+ const scale = source.scale || {};
|
|
|
+ if (scale.getPointPositionForValue) {
|
|
|
+ return computeCircularBoundary(source);
|
|
|
+ }
|
|
|
+ return computeLinearBoundary(source);
|
|
|
+}
|
|
|
+function findSegmentEnd(start, end, points) {
|
|
|
+ for (;end > start; end--) {
|
|
|
+ const point = points[end];
|
|
|
+ if (!isNaN(point.x) && !isNaN(point.y)) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return end;
|
|
|
+}
|
|
|
+function pointsFromSegments(boundary, line) {
|
|
|
+ const {x = null, y = null} = boundary || {};
|
|
|
+ const linePoints = line.points;
|
|
|
+ const points = [];
|
|
|
+ line.segments.forEach(({start, end}) => {
|
|
|
+ end = findSegmentEnd(start, end, linePoints);
|
|
|
+ const first = linePoints[start];
|
|
|
+ const last = linePoints[end];
|
|
|
+ if (y !== null) {
|
|
|
+ points.push({x: first.x, y});
|
|
|
+ points.push({x: last.x, y});
|
|
|
+ } else if (x !== null) {
|
|
|
+ points.push({x, y: first.y});
|
|
|
+ points.push({x, y: last.y});
|
|
|
+ }
|
|
|
+ });
|
|
|
+ return points;
|
|
|
+}
|
|
|
+function buildStackLine(source) {
|
|
|
+ const {chart, scale, index, line} = source;
|
|
|
+ const points = [];
|
|
|
+ const segments = line.segments;
|
|
|
+ const sourcePoints = line.points;
|
|
|
+ const linesBelow = getLinesBelow(chart, index);
|
|
|
+ linesBelow.push(createBoundaryLine({x: null, y: scale.bottom}, line));
|
|
|
+ for (let i = 0; i < segments.length; i++) {
|
|
|
+ const segment = segments[i];
|
|
|
+ for (let j = segment.start; j <= segment.end; j++) {
|
|
|
+ addPointsBelow(points, sourcePoints[j], linesBelow);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return new LineElement({points, options: {}});
|
|
|
+}
|
|
|
+const isLineAndNotInHideAnimation = (meta) => meta.type === 'line' && !meta.hidden;
|
|
|
+function getLinesBelow(chart, index) {
|
|
|
+ const below = [];
|
|
|
+ const metas = chart.getSortedVisibleDatasetMetas();
|
|
|
+ for (let i = 0; i < metas.length; i++) {
|
|
|
+ const meta = metas[i];
|
|
|
+ if (meta.index === index) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ if (isLineAndNotInHideAnimation(meta)) {
|
|
|
+ below.unshift(meta.dataset);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return below;
|
|
|
+}
|
|
|
+function addPointsBelow(points, sourcePoint, linesBelow) {
|
|
|
+ const postponed = [];
|
|
|
+ for (let j = 0; j < linesBelow.length; j++) {
|
|
|
+ const line = linesBelow[j];
|
|
|
+ const {first, last, point} = findPoint(line, sourcePoint, 'x');
|
|
|
+ if (!point || (first && last)) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ if (first) {
|
|
|
+ postponed.unshift(point);
|
|
|
+ } else {
|
|
|
+ points.push(point);
|
|
|
+ if (!last) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ points.push(...postponed);
|
|
|
+}
|
|
|
+function findPoint(line, sourcePoint, property) {
|
|
|
+ const point = line.interpolate(sourcePoint, property);
|
|
|
+ if (!point) {
|
|
|
+ return {};
|
|
|
+ }
|
|
|
+ const pointValue = point[property];
|
|
|
+ const segments = line.segments;
|
|
|
+ const linePoints = line.points;
|
|
|
+ let first = false;
|
|
|
+ let last = false;
|
|
|
+ for (let i = 0; i < segments.length; i++) {
|
|
|
+ const segment = segments[i];
|
|
|
+ const firstValue = linePoints[segment.start][property];
|
|
|
+ const lastValue = linePoints[segment.end][property];
|
|
|
+ if (pointValue >= firstValue && pointValue <= lastValue) {
|
|
|
+ first = pointValue === firstValue;
|
|
|
+ last = pointValue === lastValue;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {first, last, point};
|
|
|
+}
|
|
|
+function getTarget(source) {
|
|
|
+ const {chart, fill, line} = source;
|
|
|
+ if (isNumberFinite(fill)) {
|
|
|
+ return getLineByIndex(chart, fill);
|
|
|
+ }
|
|
|
+ if (fill === 'stack') {
|
|
|
+ return buildStackLine(source);
|
|
|
+ }
|
|
|
+ if (fill === 'shape') {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ const boundary = computeBoundary(source);
|
|
|
+ if (boundary instanceof simpleArc) {
|
|
|
+ return boundary;
|
|
|
+ }
|
|
|
+ return createBoundaryLine(boundary, line);
|
|
|
+}
|
|
|
+function createBoundaryLine(boundary, line) {
|
|
|
+ let points = [];
|
|
|
+ let _loop = false;
|
|
|
+ if (isArray(boundary)) {
|
|
|
+ _loop = true;
|
|
|
+ points = boundary;
|
|
|
+ } else {
|
|
|
+ points = pointsFromSegments(boundary, line);
|
|
|
+ }
|
|
|
+ return points.length ? new LineElement({
|
|
|
+ points,
|
|
|
+ options: {tension: 0},
|
|
|
+ _loop,
|
|
|
+ _fullLoop: _loop
|
|
|
+ }) : null;
|
|
|
+}
|
|
|
+function resolveTarget(sources, index, propagate) {
|
|
|
+ const source = sources[index];
|
|
|
+ let fill = source.fill;
|
|
|
+ const visited = [index];
|
|
|
+ let target;
|
|
|
+ if (!propagate) {
|
|
|
+ return fill;
|
|
|
+ }
|
|
|
+ while (fill !== false && visited.indexOf(fill) === -1) {
|
|
|
+ if (!isNumberFinite(fill)) {
|
|
|
+ return fill;
|
|
|
+ }
|
|
|
+ target = sources[fill];
|
|
|
+ if (!target) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ if (target.visible) {
|
|
|
+ return fill;
|
|
|
+ }
|
|
|
+ visited.push(fill);
|
|
|
+ fill = target.fill;
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+function _clip(ctx, target, clipY) {
|
|
|
+ ctx.beginPath();
|
|
|
+ target.path(ctx);
|
|
|
+ ctx.lineTo(target.last().x, clipY);
|
|
|
+ ctx.lineTo(target.first().x, clipY);
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.clip();
|
|
|
+}
|
|
|
+function getBounds(property, first, last, loop) {
|
|
|
+ if (loop) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ let start = first[property];
|
|
|
+ let end = last[property];
|
|
|
+ if (property === 'angle') {
|
|
|
+ start = _normalizeAngle(start);
|
|
|
+ end = _normalizeAngle(end);
|
|
|
+ }
|
|
|
+ return {property, start, end};
|
|
|
+}
|
|
|
+function _getEdge(a, b, prop, fn) {
|
|
|
+ if (a && b) {
|
|
|
+ return fn(a[prop], b[prop]);
|
|
|
+ }
|
|
|
+ return a ? a[prop] : b ? b[prop] : 0;
|
|
|
+}
|
|
|
+function _segments(line, target, property) {
|
|
|
+ const segments = line.segments;
|
|
|
+ const points = line.points;
|
|
|
+ const tpoints = target.points;
|
|
|
+ const parts = [];
|
|
|
+ for (const segment of segments) {
|
|
|
+ let {start, end} = segment;
|
|
|
+ end = findSegmentEnd(start, end, points);
|
|
|
+ const bounds = getBounds(property, points[start], points[end], segment.loop);
|
|
|
+ if (!target.segments) {
|
|
|
+ parts.push({
|
|
|
+ source: segment,
|
|
|
+ target: bounds,
|
|
|
+ start: points[start],
|
|
|
+ end: points[end]
|
|
|
+ });
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ const targetSegments = _boundSegments(target, bounds);
|
|
|
+ for (const tgt of targetSegments) {
|
|
|
+ const subBounds = getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop);
|
|
|
+ const fillSources = _boundSegment(segment, points, subBounds);
|
|
|
+ for (const fillSource of fillSources) {
|
|
|
+ parts.push({
|
|
|
+ source: fillSource,
|
|
|
+ target: tgt,
|
|
|
+ start: {
|
|
|
+ [property]: _getEdge(bounds, subBounds, 'start', Math.max)
|
|
|
+ },
|
|
|
+ end: {
|
|
|
+ [property]: _getEdge(bounds, subBounds, 'end', Math.min)
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return parts;
|
|
|
+}
|
|
|
+function clipBounds(ctx, scale, bounds) {
|
|
|
+ const {top, bottom} = scale.chart.chartArea;
|
|
|
+ const {property, start, end} = bounds || {};
|
|
|
+ if (property === 'x') {
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.rect(start, top, end - start, bottom - top);
|
|
|
+ ctx.clip();
|
|
|
+ }
|
|
|
+}
|
|
|
+function interpolatedLineTo(ctx, target, point, property) {
|
|
|
+ const interpolatedPoint = target.interpolate(point, property);
|
|
|
+ if (interpolatedPoint) {
|
|
|
+ ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y);
|
|
|
+ }
|
|
|
+}
|
|
|
+function _fill(ctx, cfg) {
|
|
|
+ const {line, target, property, color, scale} = cfg;
|
|
|
+ const segments = _segments(line, target, property);
|
|
|
+ for (const {source: src, target: tgt, start, end} of segments) {
|
|
|
+ const {style: {backgroundColor = color} = {}} = src;
|
|
|
+ const notShape = target !== true;
|
|
|
+ ctx.save();
|
|
|
+ ctx.fillStyle = backgroundColor;
|
|
|
+ clipBounds(ctx, scale, notShape && getBounds(property, start, end));
|
|
|
+ ctx.beginPath();
|
|
|
+ const lineLoop = !!line.pathSegment(ctx, src);
|
|
|
+ let loop;
|
|
|
+ if (notShape) {
|
|
|
+ if (lineLoop) {
|
|
|
+ ctx.closePath();
|
|
|
+ } else {
|
|
|
+ interpolatedLineTo(ctx, target, end, property);
|
|
|
+ }
|
|
|
+ const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true});
|
|
|
+ loop = lineLoop && targetLoop;
|
|
|
+ if (!loop) {
|
|
|
+ interpolatedLineTo(ctx, target, start, property);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.fill(loop ? 'evenodd' : 'nonzero');
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+}
|
|
|
+function doFill(ctx, cfg) {
|
|
|
+ const {line, target, above, below, area, scale} = cfg;
|
|
|
+ const property = line._loop ? 'angle' : cfg.axis;
|
|
|
+ ctx.save();
|
|
|
+ if (property === 'x' && below !== above) {
|
|
|
+ _clip(ctx, target, area.top);
|
|
|
+ _fill(ctx, {line, target, color: above, scale, property});
|
|
|
+ ctx.restore();
|
|
|
+ ctx.save();
|
|
|
+ _clip(ctx, target, area.bottom);
|
|
|
+ }
|
|
|
+ _fill(ctx, {line, target, color: below, scale, property});
|
|
|
+ ctx.restore();
|
|
|
+}
|
|
|
+function drawfill(ctx, source, area) {
|
|
|
+ const target = getTarget(source);
|
|
|
+ const {line, scale, axis} = source;
|
|
|
+ const lineOpts = line.options;
|
|
|
+ const fillOption = lineOpts.fill;
|
|
|
+ const color = lineOpts.backgroundColor;
|
|
|
+ const {above = color, below = color} = fillOption || {};
|
|
|
+ if (target && line.points.length) {
|
|
|
+ clipArea(ctx, area);
|
|
|
+ doFill(ctx, {line, target, above, below, area, scale, axis});
|
|
|
+ unclipArea(ctx);
|
|
|
+ }
|
|
|
+}
|
|
|
+var plugin_filler = {
|
|
|
+ id: 'filler',
|
|
|
+ afterDatasetsUpdate(chart, _args, options) {
|
|
|
+ const count = (chart.data.datasets || []).length;
|
|
|
+ const sources = [];
|
|
|
+ let meta, i, line, source;
|
|
|
+ for (i = 0; i < count; ++i) {
|
|
|
+ meta = chart.getDatasetMeta(i);
|
|
|
+ line = meta.dataset;
|
|
|
+ source = null;
|
|
|
+ if (line && line.options && line instanceof LineElement) {
|
|
|
+ source = {
|
|
|
+ visible: chart.isDatasetVisible(i),
|
|
|
+ index: i,
|
|
|
+ fill: decodeFill(line, i, count),
|
|
|
+ chart,
|
|
|
+ axis: meta.controller.options.indexAxis,
|
|
|
+ scale: meta.vScale,
|
|
|
+ line,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ meta.$filler = source;
|
|
|
+ sources.push(source);
|
|
|
+ }
|
|
|
+ for (i = 0; i < count; ++i) {
|
|
|
+ source = sources[i];
|
|
|
+ if (!source || source.fill === false) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ source.fill = resolveTarget(sources, i, options.propagate);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ beforeDraw(chart, _args, options) {
|
|
|
+ const draw = options.drawTime === 'beforeDraw';
|
|
|
+ const metasets = chart.getSortedVisibleDatasetMetas();
|
|
|
+ const area = chart.chartArea;
|
|
|
+ for (let i = metasets.length - 1; i >= 0; --i) {
|
|
|
+ const source = metasets[i].$filler;
|
|
|
+ if (!source) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ source.line.updateControlPoints(area, source.axis);
|
|
|
+ if (draw) {
|
|
|
+ drawfill(chart.ctx, source, area);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+ beforeDatasetsDraw(chart, _args, options) {
|
|
|
+ if (options.drawTime !== 'beforeDatasetsDraw') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const metasets = chart.getSortedVisibleDatasetMetas();
|
|
|
+ for (let i = metasets.length - 1; i >= 0; --i) {
|
|
|
+ const source = metasets[i].$filler;
|
|
|
+ if (source) {
|
|
|
+ drawfill(chart.ctx, source, chart.chartArea);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+ beforeDatasetDraw(chart, args, options) {
|
|
|
+ const source = args.meta.$filler;
|
|
|
+ if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ drawfill(chart.ctx, source, chart.chartArea);
|
|
|
+ },
|
|
|
+ defaults: {
|
|
|
+ propagate: true,
|
|
|
+ drawTime: 'beforeDatasetDraw'
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+const getBoxSize = (labelOpts, fontSize) => {
|
|
|
+ let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts;
|
|
|
+ if (labelOpts.usePointStyle) {
|
|
|
+ boxHeight = Math.min(boxHeight, fontSize);
|
|
|
+ boxWidth = Math.min(boxWidth, fontSize);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ boxWidth,
|
|
|
+ boxHeight,
|
|
|
+ itemHeight: Math.max(fontSize, boxHeight)
|
|
|
+ };
|
|
|
+};
|
|
|
+const itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index;
|
|
|
+class Legend extends Element {
|
|
|
+ constructor(config) {
|
|
|
+ super();
|
|
|
+ this._added = false;
|
|
|
+ this.legendHitBoxes = [];
|
|
|
+ this._hoveredItem = null;
|
|
|
+ this.doughnutMode = false;
|
|
|
+ this.chart = config.chart;
|
|
|
+ this.options = config.options;
|
|
|
+ this.ctx = config.ctx;
|
|
|
+ this.legendItems = undefined;
|
|
|
+ this.columnSizes = undefined;
|
|
|
+ this.lineWidths = undefined;
|
|
|
+ this.maxHeight = undefined;
|
|
|
+ this.maxWidth = undefined;
|
|
|
+ this.top = undefined;
|
|
|
+ this.bottom = undefined;
|
|
|
+ this.left = undefined;
|
|
|
+ this.right = undefined;
|
|
|
+ this.height = undefined;
|
|
|
+ this.width = undefined;
|
|
|
+ this._margins = undefined;
|
|
|
+ this.position = undefined;
|
|
|
+ this.weight = undefined;
|
|
|
+ this.fullSize = undefined;
|
|
|
+ }
|
|
|
+ update(maxWidth, maxHeight, margins) {
|
|
|
+ const me = this;
|
|
|
+ me.maxWidth = maxWidth;
|
|
|
+ me.maxHeight = maxHeight;
|
|
|
+ me._margins = margins;
|
|
|
+ me.setDimensions();
|
|
|
+ me.buildLabels();
|
|
|
+ me.fit();
|
|
|
+ }
|
|
|
+ setDimensions() {
|
|
|
+ const me = this;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ me.width = me.maxWidth;
|
|
|
+ me.left = me._margins.left;
|
|
|
+ me.right = me.width;
|
|
|
+ } else {
|
|
|
+ me.height = me.maxHeight;
|
|
|
+ me.top = me._margins.top;
|
|
|
+ me.bottom = me.height;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ buildLabels() {
|
|
|
+ const me = this;
|
|
|
+ const labelOpts = me.options.labels || {};
|
|
|
+ let legendItems = callback(labelOpts.generateLabels, [me.chart], me) || [];
|
|
|
+ if (labelOpts.filter) {
|
|
|
+ legendItems = legendItems.filter((item) => labelOpts.filter(item, me.chart.data));
|
|
|
+ }
|
|
|
+ if (labelOpts.sort) {
|
|
|
+ legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, me.chart.data));
|
|
|
+ }
|
|
|
+ if (me.options.reverse) {
|
|
|
+ legendItems.reverse();
|
|
|
+ }
|
|
|
+ me.legendItems = legendItems;
|
|
|
+ }
|
|
|
+ fit() {
|
|
|
+ const me = this;
|
|
|
+ const {options, ctx} = me;
|
|
|
+ if (!options.display) {
|
|
|
+ me.width = me.height = 0;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const labelOpts = options.labels;
|
|
|
+ const labelFont = toFont(labelOpts.font);
|
|
|
+ const fontSize = labelFont.size;
|
|
|
+ const titleHeight = me._computeTitleHeight();
|
|
|
+ const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize);
|
|
|
+ let width, height;
|
|
|
+ ctx.font = labelFont.string;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ width = me.maxWidth;
|
|
|
+ height = me._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10;
|
|
|
+ } else {
|
|
|
+ height = me.maxHeight;
|
|
|
+ width = me._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10;
|
|
|
+ }
|
|
|
+ me.width = Math.min(width, options.maxWidth || me.maxWidth);
|
|
|
+ me.height = Math.min(height, options.maxHeight || me.maxHeight);
|
|
|
+ }
|
|
|
+ _fitRows(titleHeight, fontSize, boxWidth, itemHeight) {
|
|
|
+ const me = this;
|
|
|
+ const {ctx, maxWidth, options: {labels: {padding}}} = me;
|
|
|
+ const hitboxes = me.legendHitBoxes = [];
|
|
|
+ const lineWidths = me.lineWidths = [0];
|
|
|
+ const lineHeight = itemHeight + padding;
|
|
|
+ let totalHeight = titleHeight;
|
|
|
+ ctx.textAlign = 'left';
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ let row = -1;
|
|
|
+ let top = -lineHeight;
|
|
|
+ me.legendItems.forEach((legendItem, i) => {
|
|
|
+ const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
|
|
|
+ if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) {
|
|
|
+ totalHeight += lineHeight;
|
|
|
+ lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;
|
|
|
+ top += lineHeight;
|
|
|
+ row++;
|
|
|
+ }
|
|
|
+ hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight};
|
|
|
+ lineWidths[lineWidths.length - 1] += itemWidth + padding;
|
|
|
+ });
|
|
|
+ return totalHeight;
|
|
|
+ }
|
|
|
+ _fitCols(titleHeight, fontSize, boxWidth, itemHeight) {
|
|
|
+ const me = this;
|
|
|
+ const {ctx, maxHeight, options: {labels: {padding}}} = me;
|
|
|
+ const hitboxes = me.legendHitBoxes = [];
|
|
|
+ const columnSizes = me.columnSizes = [];
|
|
|
+ const heightLimit = maxHeight - titleHeight;
|
|
|
+ let totalWidth = padding;
|
|
|
+ let currentColWidth = 0;
|
|
|
+ let currentColHeight = 0;
|
|
|
+ let left = 0;
|
|
|
+ let col = 0;
|
|
|
+ me.legendItems.forEach((legendItem, i) => {
|
|
|
+ const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
|
|
|
+ if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) {
|
|
|
+ totalWidth += currentColWidth + padding;
|
|
|
+ columnSizes.push({width: currentColWidth, height: currentColHeight});
|
|
|
+ left += currentColWidth + padding;
|
|
|
+ col++;
|
|
|
+ currentColWidth = currentColHeight = 0;
|
|
|
+ }
|
|
|
+ hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight};
|
|
|
+ currentColWidth = Math.max(currentColWidth, itemWidth);
|
|
|
+ currentColHeight += itemHeight + padding;
|
|
|
+ });
|
|
|
+ totalWidth += currentColWidth;
|
|
|
+ columnSizes.push({width: currentColWidth, height: currentColHeight});
|
|
|
+ return totalWidth;
|
|
|
+ }
|
|
|
+ adjustHitBoxes() {
|
|
|
+ const me = this;
|
|
|
+ if (!me.options.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const titleHeight = me._computeTitleHeight();
|
|
|
+ const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = me;
|
|
|
+ const rtlHelper = getRtlAdapter(rtl, me.left, me.width);
|
|
|
+ if (this.isHorizontal()) {
|
|
|
+ let row = 0;
|
|
|
+ let left = _alignStartEnd(align, me.left + padding, me.right - me.lineWidths[row]);
|
|
|
+ for (const hitbox of hitboxes) {
|
|
|
+ if (row !== hitbox.row) {
|
|
|
+ row = hitbox.row;
|
|
|
+ left = _alignStartEnd(align, me.left + padding, me.right - me.lineWidths[row]);
|
|
|
+ }
|
|
|
+ hitbox.top += me.top + titleHeight + padding;
|
|
|
+ hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width);
|
|
|
+ left += hitbox.width + padding;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ let col = 0;
|
|
|
+ let top = _alignStartEnd(align, me.top + titleHeight + padding, me.bottom - me.columnSizes[col].height);
|
|
|
+ for (const hitbox of hitboxes) {
|
|
|
+ if (hitbox.col !== col) {
|
|
|
+ col = hitbox.col;
|
|
|
+ top = _alignStartEnd(align, me.top + titleHeight + padding, me.bottom - me.columnSizes[col].height);
|
|
|
+ }
|
|
|
+ hitbox.top = top;
|
|
|
+ hitbox.left += me.left + padding;
|
|
|
+ hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width);
|
|
|
+ top += hitbox.height + padding;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ isHorizontal() {
|
|
|
+ return this.options.position === 'top' || this.options.position === 'bottom';
|
|
|
+ }
|
|
|
+ draw() {
|
|
|
+ const me = this;
|
|
|
+ if (me.options.display) {
|
|
|
+ const ctx = me.ctx;
|
|
|
+ clipArea(ctx, me);
|
|
|
+ me._draw();
|
|
|
+ unclipArea(ctx);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _draw() {
|
|
|
+ const me = this;
|
|
|
+ const {options: opts, columnSizes, lineWidths, ctx} = me;
|
|
|
+ const {align, labels: labelOpts} = opts;
|
|
|
+ const defaultColor = defaults.color;
|
|
|
+ const rtlHelper = getRtlAdapter(opts.rtl, me.left, me.width);
|
|
|
+ const labelFont = toFont(labelOpts.font);
|
|
|
+ const {color: fontColor, padding} = labelOpts;
|
|
|
+ const fontSize = labelFont.size;
|
|
|
+ const halfFontSize = fontSize / 2;
|
|
|
+ let cursor;
|
|
|
+ me.drawTitle();
|
|
|
+ ctx.textAlign = rtlHelper.textAlign('left');
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ ctx.lineWidth = 0.5;
|
|
|
+ ctx.font = labelFont.string;
|
|
|
+ const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize);
|
|
|
+ const drawLegendBox = function(x, y, legendItem) {
|
|
|
+ if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ const lineWidth = valueOrDefault(legendItem.lineWidth, 1);
|
|
|
+ ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor);
|
|
|
+ ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt');
|
|
|
+ ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0);
|
|
|
+ ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter');
|
|
|
+ ctx.lineWidth = lineWidth;
|
|
|
+ ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor);
|
|
|
+ ctx.setLineDash(valueOrDefault(legendItem.lineDash, []));
|
|
|
+ if (labelOpts.usePointStyle) {
|
|
|
+ const drawOptions = {
|
|
|
+ radius: boxWidth * Math.SQRT2 / 2,
|
|
|
+ pointStyle: legendItem.pointStyle,
|
|
|
+ rotation: legendItem.rotation,
|
|
|
+ borderWidth: lineWidth
|
|
|
+ };
|
|
|
+ const centerX = rtlHelper.xPlus(x, boxWidth / 2);
|
|
|
+ const centerY = y + halfFontSize;
|
|
|
+ drawPoint(ctx, drawOptions, centerX, centerY);
|
|
|
+ } else {
|
|
|
+ const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0);
|
|
|
+ const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth);
|
|
|
+ const borderRadius = toTRBLCorners(legendItem.borderRadius);
|
|
|
+ ctx.beginPath();
|
|
|
+ if (Object.values(borderRadius).some(v => v !== 0)) {
|
|
|
+ addRoundedRectPath(ctx, {
|
|
|
+ x: xBoxLeft,
|
|
|
+ y: yBoxTop,
|
|
|
+ w: boxWidth,
|
|
|
+ h: boxHeight,
|
|
|
+ radius: borderRadius,
|
|
|
+ });
|
|
|
+ } else {
|
|
|
+ ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight);
|
|
|
+ }
|
|
|
+ ctx.fill();
|
|
|
+ if (lineWidth !== 0) {
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ctx.restore();
|
|
|
+ };
|
|
|
+ const fillText = function(x, y, legendItem) {
|
|
|
+ renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, {
|
|
|
+ strikethrough: legendItem.hidden,
|
|
|
+ textAlign: rtlHelper.textAlign(legendItem.textAlign)
|
|
|
+ });
|
|
|
+ };
|
|
|
+ const isHorizontal = me.isHorizontal();
|
|
|
+ const titleHeight = this._computeTitleHeight();
|
|
|
+ if (isHorizontal) {
|
|
|
+ cursor = {
|
|
|
+ x: _alignStartEnd(align, me.left + padding, me.right - lineWidths[0]),
|
|
|
+ y: me.top + padding + titleHeight,
|
|
|
+ line: 0
|
|
|
+ };
|
|
|
+ } else {
|
|
|
+ cursor = {
|
|
|
+ x: me.left + padding,
|
|
|
+ y: _alignStartEnd(align, me.top + titleHeight + padding, me.bottom - columnSizes[0].height),
|
|
|
+ line: 0
|
|
|
+ };
|
|
|
+ }
|
|
|
+ overrideTextDirection(me.ctx, opts.textDirection);
|
|
|
+ const lineHeight = itemHeight + padding;
|
|
|
+ me.legendItems.forEach((legendItem, i) => {
|
|
|
+ ctx.strokeStyle = legendItem.fontColor || fontColor;
|
|
|
+ ctx.fillStyle = legendItem.fontColor || fontColor;
|
|
|
+ const textWidth = ctx.measureText(legendItem.text).width;
|
|
|
+ const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign));
|
|
|
+ const width = boxWidth + halfFontSize + textWidth;
|
|
|
+ let x = cursor.x;
|
|
|
+ let y = cursor.y;
|
|
|
+ rtlHelper.setWidth(me.width);
|
|
|
+ if (isHorizontal) {
|
|
|
+ if (i > 0 && x + width + padding > me.right) {
|
|
|
+ y = cursor.y += lineHeight;
|
|
|
+ cursor.line++;
|
|
|
+ x = cursor.x = _alignStartEnd(align, me.left + padding, me.right - lineWidths[cursor.line]);
|
|
|
+ }
|
|
|
+ } else if (i > 0 && y + lineHeight > me.bottom) {
|
|
|
+ x = cursor.x = x + columnSizes[cursor.line].width + padding;
|
|
|
+ cursor.line++;
|
|
|
+ y = cursor.y = _alignStartEnd(align, me.top + titleHeight + padding, me.bottom - columnSizes[cursor.line].height);
|
|
|
+ }
|
|
|
+ const realX = rtlHelper.x(x);
|
|
|
+ drawLegendBox(realX, y, legendItem);
|
|
|
+ x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : me.right, opts.rtl);
|
|
|
+ fillText(rtlHelper.x(x), y, legendItem);
|
|
|
+ if (isHorizontal) {
|
|
|
+ cursor.x += width + padding;
|
|
|
+ } else {
|
|
|
+ cursor.y += lineHeight;
|
|
|
+ }
|
|
|
+ });
|
|
|
+ restoreTextDirection(me.ctx, opts.textDirection);
|
|
|
+ }
|
|
|
+ drawTitle() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const titleOpts = opts.title;
|
|
|
+ const titleFont = toFont(titleOpts.font);
|
|
|
+ const titlePadding = toPadding(titleOpts.padding);
|
|
|
+ if (!titleOpts.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const rtlHelper = getRtlAdapter(opts.rtl, me.left, me.width);
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const position = titleOpts.position;
|
|
|
+ const halfFontSize = titleFont.size / 2;
|
|
|
+ const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize;
|
|
|
+ let y;
|
|
|
+ let left = me.left;
|
|
|
+ let maxWidth = me.width;
|
|
|
+ if (this.isHorizontal()) {
|
|
|
+ maxWidth = Math.max(...me.lineWidths);
|
|
|
+ y = me.top + topPaddingPlusHalfFontSize;
|
|
|
+ left = _alignStartEnd(opts.align, left, me.right - maxWidth);
|
|
|
+ } else {
|
|
|
+ const maxHeight = me.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0);
|
|
|
+ y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, me.top, me.bottom - maxHeight - opts.labels.padding - me._computeTitleHeight());
|
|
|
+ }
|
|
|
+ const x = _alignStartEnd(position, left, left + maxWidth);
|
|
|
+ ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position));
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ ctx.strokeStyle = titleOpts.color;
|
|
|
+ ctx.fillStyle = titleOpts.color;
|
|
|
+ ctx.font = titleFont.string;
|
|
|
+ renderText(ctx, titleOpts.text, x, y, titleFont);
|
|
|
+ }
|
|
|
+ _computeTitleHeight() {
|
|
|
+ const titleOpts = this.options.title;
|
|
|
+ const titleFont = toFont(titleOpts.font);
|
|
|
+ const titlePadding = toPadding(titleOpts.padding);
|
|
|
+ return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0;
|
|
|
+ }
|
|
|
+ _getLegendItemAt(x, y) {
|
|
|
+ const me = this;
|
|
|
+ let i, hitBox, lh;
|
|
|
+ if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
|
|
|
+ lh = me.legendHitBoxes;
|
|
|
+ for (i = 0; i < lh.length; ++i) {
|
|
|
+ hitBox = lh[i];
|
|
|
+ if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
|
|
|
+ return me.legendItems[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ handleEvent(e) {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ if (!isListened(e.type, opts)) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const hoveredItem = me._getLegendItemAt(e.x, e.y);
|
|
|
+ if (e.type === 'mousemove') {
|
|
|
+ const previous = me._hoveredItem;
|
|
|
+ const sameItem = itemsEqual(previous, hoveredItem);
|
|
|
+ if (previous && !sameItem) {
|
|
|
+ callback(opts.onLeave, [e, previous, me], me);
|
|
|
+ }
|
|
|
+ me._hoveredItem = hoveredItem;
|
|
|
+ if (hoveredItem && !sameItem) {
|
|
|
+ callback(opts.onHover, [e, hoveredItem, me], me);
|
|
|
+ }
|
|
|
+ } else if (hoveredItem) {
|
|
|
+ callback(opts.onClick, [e, hoveredItem, me], me);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function isListened(type, opts) {
|
|
|
+ if (type === 'mousemove' && (opts.onHover || opts.onLeave)) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ if (opts.onClick && (type === 'click' || type === 'mouseup')) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+var plugin_legend = {
|
|
|
+ id: 'legend',
|
|
|
+ _element: Legend,
|
|
|
+ start(chart, _args, options) {
|
|
|
+ const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart});
|
|
|
+ layouts.configure(chart, legend, options);
|
|
|
+ layouts.addBox(chart, legend);
|
|
|
+ },
|
|
|
+ stop(chart) {
|
|
|
+ layouts.removeBox(chart, chart.legend);
|
|
|
+ delete chart.legend;
|
|
|
+ },
|
|
|
+ beforeUpdate(chart, _args, options) {
|
|
|
+ const legend = chart.legend;
|
|
|
+ layouts.configure(chart, legend, options);
|
|
|
+ legend.options = options;
|
|
|
+ },
|
|
|
+ afterUpdate(chart) {
|
|
|
+ const legend = chart.legend;
|
|
|
+ legend.buildLabels();
|
|
|
+ legend.adjustHitBoxes();
|
|
|
+ },
|
|
|
+ afterEvent(chart, args) {
|
|
|
+ if (!args.replay) {
|
|
|
+ chart.legend.handleEvent(args.event);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ defaults: {
|
|
|
+ display: true,
|
|
|
+ position: 'top',
|
|
|
+ align: 'center',
|
|
|
+ fullSize: true,
|
|
|
+ reverse: false,
|
|
|
+ weight: 1000,
|
|
|
+ onClick(e, legendItem, legend) {
|
|
|
+ const index = legendItem.datasetIndex;
|
|
|
+ const ci = legend.chart;
|
|
|
+ if (ci.isDatasetVisible(index)) {
|
|
|
+ ci.hide(index);
|
|
|
+ legendItem.hidden = true;
|
|
|
+ } else {
|
|
|
+ ci.show(index);
|
|
|
+ legendItem.hidden = false;
|
|
|
+ }
|
|
|
+ },
|
|
|
+ onHover: null,
|
|
|
+ onLeave: null,
|
|
|
+ labels: {
|
|
|
+ color: (ctx) => ctx.chart.options.color,
|
|
|
+ boxWidth: 40,
|
|
|
+ padding: 10,
|
|
|
+ generateLabels(chart) {
|
|
|
+ const datasets = chart.data.datasets;
|
|
|
+ const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options;
|
|
|
+ return chart._getSortedDatasetMetas().map((meta) => {
|
|
|
+ const style = meta.controller.getStyle(usePointStyle ? 0 : undefined);
|
|
|
+ const borderWidth = toPadding(style.borderWidth);
|
|
|
+ return {
|
|
|
+ text: datasets[meta.index].label,
|
|
|
+ fillStyle: style.backgroundColor,
|
|
|
+ fontColor: color,
|
|
|
+ hidden: !meta.visible,
|
|
|
+ lineCap: style.borderCapStyle,
|
|
|
+ lineDash: style.borderDash,
|
|
|
+ lineDashOffset: style.borderDashOffset,
|
|
|
+ lineJoin: style.borderJoinStyle,
|
|
|
+ lineWidth: (borderWidth.width + borderWidth.height) / 4,
|
|
|
+ strokeStyle: style.borderColor,
|
|
|
+ pointStyle: pointStyle || style.pointStyle,
|
|
|
+ rotation: style.rotation,
|
|
|
+ textAlign: textAlign || style.textAlign,
|
|
|
+ borderRadius: 0,
|
|
|
+ datasetIndex: meta.index
|
|
|
+ };
|
|
|
+ }, this);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ title: {
|
|
|
+ color: (ctx) => ctx.chart.options.color,
|
|
|
+ display: false,
|
|
|
+ position: 'center',
|
|
|
+ text: '',
|
|
|
+ }
|
|
|
+ },
|
|
|
+ descriptors: {
|
|
|
+ _scriptable: (name) => !name.startsWith('on'),
|
|
|
+ labels: {
|
|
|
+ _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name),
|
|
|
+ }
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+class Title extends Element {
|
|
|
+ constructor(config) {
|
|
|
+ super();
|
|
|
+ this.chart = config.chart;
|
|
|
+ this.options = config.options;
|
|
|
+ this.ctx = config.ctx;
|
|
|
+ this._padding = undefined;
|
|
|
+ this.top = undefined;
|
|
|
+ this.bottom = undefined;
|
|
|
+ this.left = undefined;
|
|
|
+ this.right = undefined;
|
|
|
+ this.width = undefined;
|
|
|
+ this.height = undefined;
|
|
|
+ this.position = undefined;
|
|
|
+ this.weight = undefined;
|
|
|
+ this.fullSize = undefined;
|
|
|
+ }
|
|
|
+ update(maxWidth, maxHeight) {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ me.left = 0;
|
|
|
+ me.top = 0;
|
|
|
+ if (!opts.display) {
|
|
|
+ me.width = me.height = me.right = me.bottom = 0;
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ me.width = me.right = maxWidth;
|
|
|
+ me.height = me.bottom = maxHeight;
|
|
|
+ const lineCount = isArray(opts.text) ? opts.text.length : 1;
|
|
|
+ me._padding = toPadding(opts.padding);
|
|
|
+ const textSize = lineCount * toFont(opts.font).lineHeight + me._padding.height;
|
|
|
+ if (me.isHorizontal()) {
|
|
|
+ me.height = textSize;
|
|
|
+ } else {
|
|
|
+ me.width = textSize;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ isHorizontal() {
|
|
|
+ const pos = this.options.position;
|
|
|
+ return pos === 'top' || pos === 'bottom';
|
|
|
+ }
|
|
|
+ _drawArgs(offset) {
|
|
|
+ const {top, left, bottom, right, options} = this;
|
|
|
+ const align = options.align;
|
|
|
+ let rotation = 0;
|
|
|
+ let maxWidth, titleX, titleY;
|
|
|
+ if (this.isHorizontal()) {
|
|
|
+ titleX = _alignStartEnd(align, left, right);
|
|
|
+ titleY = top + offset;
|
|
|
+ maxWidth = right - left;
|
|
|
+ } else {
|
|
|
+ if (options.position === 'left') {
|
|
|
+ titleX = left + offset;
|
|
|
+ titleY = _alignStartEnd(align, bottom, top);
|
|
|
+ rotation = PI * -0.5;
|
|
|
+ } else {
|
|
|
+ titleX = right - offset;
|
|
|
+ titleY = _alignStartEnd(align, top, bottom);
|
|
|
+ rotation = PI * 0.5;
|
|
|
+ }
|
|
|
+ maxWidth = bottom - top;
|
|
|
+ }
|
|
|
+ return {titleX, titleY, maxWidth, rotation};
|
|
|
+ }
|
|
|
+ draw() {
|
|
|
+ const me = this;
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const opts = me.options;
|
|
|
+ if (!opts.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const fontOpts = toFont(opts.font);
|
|
|
+ const lineHeight = fontOpts.lineHeight;
|
|
|
+ const offset = lineHeight / 2 + me._padding.top;
|
|
|
+ const {titleX, titleY, maxWidth, rotation} = me._drawArgs(offset);
|
|
|
+ renderText(ctx, opts.text, 0, 0, fontOpts, {
|
|
|
+ color: opts.color,
|
|
|
+ maxWidth,
|
|
|
+ rotation,
|
|
|
+ textAlign: _toLeftRightCenter(opts.align),
|
|
|
+ textBaseline: 'middle',
|
|
|
+ translation: [titleX, titleY],
|
|
|
+ });
|
|
|
+ }
|
|
|
+}
|
|
|
+function createTitle(chart, titleOpts) {
|
|
|
+ const title = new Title({
|
|
|
+ ctx: chart.ctx,
|
|
|
+ options: titleOpts,
|
|
|
+ chart
|
|
|
+ });
|
|
|
+ layouts.configure(chart, title, titleOpts);
|
|
|
+ layouts.addBox(chart, title);
|
|
|
+ chart.titleBlock = title;
|
|
|
+}
|
|
|
+var plugin_title = {
|
|
|
+ id: 'title',
|
|
|
+ _element: Title,
|
|
|
+ start(chart, _args, options) {
|
|
|
+ createTitle(chart, options);
|
|
|
+ },
|
|
|
+ stop(chart) {
|
|
|
+ const titleBlock = chart.titleBlock;
|
|
|
+ layouts.removeBox(chart, titleBlock);
|
|
|
+ delete chart.titleBlock;
|
|
|
+ },
|
|
|
+ beforeUpdate(chart, _args, options) {
|
|
|
+ const title = chart.titleBlock;
|
|
|
+ layouts.configure(chart, title, options);
|
|
|
+ title.options = options;
|
|
|
+ },
|
|
|
+ defaults: {
|
|
|
+ align: 'center',
|
|
|
+ display: false,
|
|
|
+ font: {
|
|
|
+ weight: 'bold',
|
|
|
+ },
|
|
|
+ fullSize: true,
|
|
|
+ padding: 10,
|
|
|
+ position: 'top',
|
|
|
+ text: '',
|
|
|
+ weight: 2000
|
|
|
+ },
|
|
|
+ defaultRoutes: {
|
|
|
+ color: 'color'
|
|
|
+ },
|
|
|
+ descriptors: {
|
|
|
+ _scriptable: true,
|
|
|
+ _indexable: false,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+const map = new WeakMap();
|
|
|
+var plugin_subtitle = {
|
|
|
+ id: 'subtitle',
|
|
|
+ start(chart, _args, options) {
|
|
|
+ const title = new Title({
|
|
|
+ ctx: chart.ctx,
|
|
|
+ options,
|
|
|
+ chart
|
|
|
+ });
|
|
|
+ layouts.configure(chart, title, options);
|
|
|
+ layouts.addBox(chart, title);
|
|
|
+ map.set(chart, title);
|
|
|
+ },
|
|
|
+ stop(chart) {
|
|
|
+ layouts.removeBox(chart, map.get(chart));
|
|
|
+ map.delete(chart);
|
|
|
+ },
|
|
|
+ beforeUpdate(chart, _args, options) {
|
|
|
+ const title = map.get(chart);
|
|
|
+ layouts.configure(chart, title, options);
|
|
|
+ title.options = options;
|
|
|
+ },
|
|
|
+ defaults: {
|
|
|
+ align: 'center',
|
|
|
+ display: false,
|
|
|
+ font: {
|
|
|
+ weight: 'normal',
|
|
|
+ },
|
|
|
+ fullSize: true,
|
|
|
+ padding: 0,
|
|
|
+ position: 'top',
|
|
|
+ text: '',
|
|
|
+ weight: 1500
|
|
|
+ },
|
|
|
+ defaultRoutes: {
|
|
|
+ color: 'color'
|
|
|
+ },
|
|
|
+ descriptors: {
|
|
|
+ _scriptable: true,
|
|
|
+ _indexable: false,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+const positioners = {
|
|
|
+ average(items) {
|
|
|
+ if (!items.length) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ let i, len;
|
|
|
+ let x = 0;
|
|
|
+ let y = 0;
|
|
|
+ let count = 0;
|
|
|
+ for (i = 0, len = items.length; i < len; ++i) {
|
|
|
+ const el = items[i].element;
|
|
|
+ if (el && el.hasValue()) {
|
|
|
+ const pos = el.tooltipPosition();
|
|
|
+ x += pos.x;
|
|
|
+ y += pos.y;
|
|
|
+ ++count;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ x: x / count,
|
|
|
+ y: y / count
|
|
|
+ };
|
|
|
+ },
|
|
|
+ nearest(items, eventPosition) {
|
|
|
+ if (!items.length) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ let x = eventPosition.x;
|
|
|
+ let y = eventPosition.y;
|
|
|
+ let minDistance = Number.POSITIVE_INFINITY;
|
|
|
+ let i, len, nearestElement;
|
|
|
+ for (i = 0, len = items.length; i < len; ++i) {
|
|
|
+ const el = items[i].element;
|
|
|
+ if (el && el.hasValue()) {
|
|
|
+ const center = el.getCenterPoint();
|
|
|
+ const d = distanceBetweenPoints(eventPosition, center);
|
|
|
+ if (d < minDistance) {
|
|
|
+ minDistance = d;
|
|
|
+ nearestElement = el;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (nearestElement) {
|
|
|
+ const tp = nearestElement.tooltipPosition();
|
|
|
+ x = tp.x;
|
|
|
+ y = tp.y;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ x,
|
|
|
+ y
|
|
|
+ };
|
|
|
+ }
|
|
|
+};
|
|
|
+function pushOrConcat(base, toPush) {
|
|
|
+ if (toPush) {
|
|
|
+ if (isArray(toPush)) {
|
|
|
+ Array.prototype.push.apply(base, toPush);
|
|
|
+ } else {
|
|
|
+ base.push(toPush);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return base;
|
|
|
+}
|
|
|
+function splitNewlines(str) {
|
|
|
+ if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) {
|
|
|
+ return str.split('\n');
|
|
|
+ }
|
|
|
+ return str;
|
|
|
+}
|
|
|
+function createTooltipItem(chart, item) {
|
|
|
+ const {element, datasetIndex, index} = item;
|
|
|
+ const controller = chart.getDatasetMeta(datasetIndex).controller;
|
|
|
+ const {label, value} = controller.getLabelAndValue(index);
|
|
|
+ return {
|
|
|
+ chart,
|
|
|
+ label,
|
|
|
+ parsed: controller.getParsed(index),
|
|
|
+ raw: chart.data.datasets[datasetIndex].data[index],
|
|
|
+ formattedValue: value,
|
|
|
+ dataset: controller.getDataset(),
|
|
|
+ dataIndex: index,
|
|
|
+ datasetIndex,
|
|
|
+ element
|
|
|
+ };
|
|
|
+}
|
|
|
+function getTooltipSize(tooltip, options) {
|
|
|
+ const ctx = tooltip._chart.ctx;
|
|
|
+ const {body, footer, title} = tooltip;
|
|
|
+ const {boxWidth, boxHeight} = options;
|
|
|
+ const bodyFont = toFont(options.bodyFont);
|
|
|
+ const titleFont = toFont(options.titleFont);
|
|
|
+ const footerFont = toFont(options.footerFont);
|
|
|
+ const titleLineCount = title.length;
|
|
|
+ const footerLineCount = footer.length;
|
|
|
+ const bodyLineItemCount = body.length;
|
|
|
+ const padding = toPadding(options.padding);
|
|
|
+ let height = padding.height;
|
|
|
+ let width = 0;
|
|
|
+ let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0);
|
|
|
+ combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length;
|
|
|
+ if (titleLineCount) {
|
|
|
+ height += titleLineCount * titleFont.lineHeight
|
|
|
+ + (titleLineCount - 1) * options.titleSpacing
|
|
|
+ + options.titleMarginBottom;
|
|
|
+ }
|
|
|
+ if (combinedBodyLength) {
|
|
|
+ const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight;
|
|
|
+ height += bodyLineItemCount * bodyLineHeight
|
|
|
+ + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight
|
|
|
+ + (combinedBodyLength - 1) * options.bodySpacing;
|
|
|
+ }
|
|
|
+ if (footerLineCount) {
|
|
|
+ height += options.footerMarginTop
|
|
|
+ + footerLineCount * footerFont.lineHeight
|
|
|
+ + (footerLineCount - 1) * options.footerSpacing;
|
|
|
+ }
|
|
|
+ let widthPadding = 0;
|
|
|
+ const maxLineWidth = function(line) {
|
|
|
+ width = Math.max(width, ctx.measureText(line).width + widthPadding);
|
|
|
+ };
|
|
|
+ ctx.save();
|
|
|
+ ctx.font = titleFont.string;
|
|
|
+ each(tooltip.title, maxLineWidth);
|
|
|
+ ctx.font = bodyFont.string;
|
|
|
+ each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth);
|
|
|
+ widthPadding = options.displayColors ? (boxWidth + 2) : 0;
|
|
|
+ each(body, (bodyItem) => {
|
|
|
+ each(bodyItem.before, maxLineWidth);
|
|
|
+ each(bodyItem.lines, maxLineWidth);
|
|
|
+ each(bodyItem.after, maxLineWidth);
|
|
|
+ });
|
|
|
+ widthPadding = 0;
|
|
|
+ ctx.font = footerFont.string;
|
|
|
+ each(tooltip.footer, maxLineWidth);
|
|
|
+ ctx.restore();
|
|
|
+ width += padding.width;
|
|
|
+ return {width, height};
|
|
|
+}
|
|
|
+function determineYAlign(chart, size) {
|
|
|
+ const {y, height} = size;
|
|
|
+ if (y < height / 2) {
|
|
|
+ return 'top';
|
|
|
+ } else if (y > (chart.height - height / 2)) {
|
|
|
+ return 'bottom';
|
|
|
+ }
|
|
|
+ return 'center';
|
|
|
+}
|
|
|
+function doesNotFitWithAlign(xAlign, chart, options, size) {
|
|
|
+ const {x, width} = size;
|
|
|
+ const caret = options.caretSize + options.caretPadding;
|
|
|
+ if (xAlign === 'left' && x + width + caret > chart.width) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ if (xAlign === 'right' && x - width - caret < 0) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+}
|
|
|
+function determineXAlign(chart, options, size, yAlign) {
|
|
|
+ const {x, width} = size;
|
|
|
+ const {width: chartWidth, chartArea: {left, right}} = chart;
|
|
|
+ let xAlign = 'center';
|
|
|
+ if (yAlign === 'center') {
|
|
|
+ xAlign = x <= (left + right) / 2 ? 'left' : 'right';
|
|
|
+ } else if (x <= width / 2) {
|
|
|
+ xAlign = 'left';
|
|
|
+ } else if (x >= chartWidth - width / 2) {
|
|
|
+ xAlign = 'right';
|
|
|
+ }
|
|
|
+ if (doesNotFitWithAlign(xAlign, chart, options, size)) {
|
|
|
+ xAlign = 'center';
|
|
|
+ }
|
|
|
+ return xAlign;
|
|
|
+}
|
|
|
+function determineAlignment(chart, options, size) {
|
|
|
+ const yAlign = options.yAlign || determineYAlign(chart, size);
|
|
|
+ return {
|
|
|
+ xAlign: options.xAlign || determineXAlign(chart, options, size, yAlign),
|
|
|
+ yAlign
|
|
|
+ };
|
|
|
+}
|
|
|
+function alignX(size, xAlign) {
|
|
|
+ let {x, width} = size;
|
|
|
+ if (xAlign === 'right') {
|
|
|
+ x -= width;
|
|
|
+ } else if (xAlign === 'center') {
|
|
|
+ x -= (width / 2);
|
|
|
+ }
|
|
|
+ return x;
|
|
|
+}
|
|
|
+function alignY(size, yAlign, paddingAndSize) {
|
|
|
+ let {y, height} = size;
|
|
|
+ if (yAlign === 'top') {
|
|
|
+ y += paddingAndSize;
|
|
|
+ } else if (yAlign === 'bottom') {
|
|
|
+ y -= height + paddingAndSize;
|
|
|
+ } else {
|
|
|
+ y -= (height / 2);
|
|
|
+ }
|
|
|
+ return y;
|
|
|
+}
|
|
|
+function getBackgroundPoint(options, size, alignment, chart) {
|
|
|
+ const {caretSize, caretPadding, cornerRadius} = options;
|
|
|
+ const {xAlign, yAlign} = alignment;
|
|
|
+ const paddingAndSize = caretSize + caretPadding;
|
|
|
+ const radiusAndPadding = cornerRadius + caretPadding;
|
|
|
+ let x = alignX(size, xAlign);
|
|
|
+ const y = alignY(size, yAlign, paddingAndSize);
|
|
|
+ if (yAlign === 'center') {
|
|
|
+ if (xAlign === 'left') {
|
|
|
+ x += paddingAndSize;
|
|
|
+ } else if (xAlign === 'right') {
|
|
|
+ x -= paddingAndSize;
|
|
|
+ }
|
|
|
+ } else if (xAlign === 'left') {
|
|
|
+ x -= radiusAndPadding;
|
|
|
+ } else if (xAlign === 'right') {
|
|
|
+ x += radiusAndPadding;
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ x: _limitValue(x, 0, chart.width - size.width),
|
|
|
+ y: _limitValue(y, 0, chart.height - size.height)
|
|
|
+ };
|
|
|
+}
|
|
|
+function getAlignedX(tooltip, align, options) {
|
|
|
+ const padding = toPadding(options.padding);
|
|
|
+ return align === 'center'
|
|
|
+ ? tooltip.x + tooltip.width / 2
|
|
|
+ : align === 'right'
|
|
|
+ ? tooltip.x + tooltip.width - padding.right
|
|
|
+ : tooltip.x + padding.left;
|
|
|
+}
|
|
|
+function getBeforeAfterBodyLines(callback) {
|
|
|
+ return pushOrConcat([], splitNewlines(callback));
|
|
|
+}
|
|
|
+function createTooltipContext(parent, tooltip, tooltipItems) {
|
|
|
+ return Object.assign(Object.create(parent), {
|
|
|
+ tooltip,
|
|
|
+ tooltipItems,
|
|
|
+ type: 'tooltip'
|
|
|
+ });
|
|
|
+}
|
|
|
+function overrideCallbacks(callbacks, context) {
|
|
|
+ const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks;
|
|
|
+ return override ? callbacks.override(override) : callbacks;
|
|
|
+}
|
|
|
+class Tooltip extends Element {
|
|
|
+ constructor(config) {
|
|
|
+ super();
|
|
|
+ this.opacity = 0;
|
|
|
+ this._active = [];
|
|
|
+ this._chart = config._chart;
|
|
|
+ this._eventPosition = undefined;
|
|
|
+ this._size = undefined;
|
|
|
+ this._cachedAnimations = undefined;
|
|
|
+ this._tooltipItems = [];
|
|
|
+ this.$animations = undefined;
|
|
|
+ this.$context = undefined;
|
|
|
+ this.options = config.options;
|
|
|
+ this.dataPoints = undefined;
|
|
|
+ this.title = undefined;
|
|
|
+ this.beforeBody = undefined;
|
|
|
+ this.body = undefined;
|
|
|
+ this.afterBody = undefined;
|
|
|
+ this.footer = undefined;
|
|
|
+ this.xAlign = undefined;
|
|
|
+ this.yAlign = undefined;
|
|
|
+ this.x = undefined;
|
|
|
+ this.y = undefined;
|
|
|
+ this.height = undefined;
|
|
|
+ this.width = undefined;
|
|
|
+ this.caretX = undefined;
|
|
|
+ this.caretY = undefined;
|
|
|
+ this.labelColors = undefined;
|
|
|
+ this.labelPointStyles = undefined;
|
|
|
+ this.labelTextColors = undefined;
|
|
|
+ }
|
|
|
+ initialize(options) {
|
|
|
+ this.options = options;
|
|
|
+ this._cachedAnimations = undefined;
|
|
|
+ this.$context = undefined;
|
|
|
+ }
|
|
|
+ _resolveAnimations() {
|
|
|
+ const me = this;
|
|
|
+ const cached = me._cachedAnimations;
|
|
|
+ if (cached) {
|
|
|
+ return cached;
|
|
|
+ }
|
|
|
+ const chart = me._chart;
|
|
|
+ const options = me.options.setContext(me.getContext());
|
|
|
+ const opts = options.enabled && chart.options.animation && options.animations;
|
|
|
+ const animations = new Animations(me._chart, opts);
|
|
|
+ if (opts._cacheable) {
|
|
|
+ me._cachedAnimations = Object.freeze(animations);
|
|
|
+ }
|
|
|
+ return animations;
|
|
|
+ }
|
|
|
+ getContext() {
|
|
|
+ const me = this;
|
|
|
+ return me.$context ||
|
|
|
+ (me.$context = createTooltipContext(me._chart.getContext(), me, me._tooltipItems));
|
|
|
+ }
|
|
|
+ getTitle(context, options) {
|
|
|
+ const me = this;
|
|
|
+ const {callbacks} = options;
|
|
|
+ const beforeTitle = callbacks.beforeTitle.apply(me, [context]);
|
|
|
+ const title = callbacks.title.apply(me, [context]);
|
|
|
+ const afterTitle = callbacks.afterTitle.apply(me, [context]);
|
|
|
+ let lines = [];
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(beforeTitle));
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(title));
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(afterTitle));
|
|
|
+ return lines;
|
|
|
+ }
|
|
|
+ getBeforeBody(tooltipItems, options) {
|
|
|
+ return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems]));
|
|
|
+ }
|
|
|
+ getBody(tooltipItems, options) {
|
|
|
+ const me = this;
|
|
|
+ const {callbacks} = options;
|
|
|
+ const bodyItems = [];
|
|
|
+ each(tooltipItems, (context) => {
|
|
|
+ const bodyItem = {
|
|
|
+ before: [],
|
|
|
+ lines: [],
|
|
|
+ after: []
|
|
|
+ };
|
|
|
+ const scoped = overrideCallbacks(callbacks, context);
|
|
|
+ pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(me, context)));
|
|
|
+ pushOrConcat(bodyItem.lines, scoped.label.call(me, context));
|
|
|
+ pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(me, context)));
|
|
|
+ bodyItems.push(bodyItem);
|
|
|
+ });
|
|
|
+ return bodyItems;
|
|
|
+ }
|
|
|
+ getAfterBody(tooltipItems, options) {
|
|
|
+ return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems]));
|
|
|
+ }
|
|
|
+ getFooter(tooltipItems, options) {
|
|
|
+ const me = this;
|
|
|
+ const {callbacks} = options;
|
|
|
+ const beforeFooter = callbacks.beforeFooter.apply(me, [tooltipItems]);
|
|
|
+ const footer = callbacks.footer.apply(me, [tooltipItems]);
|
|
|
+ const afterFooter = callbacks.afterFooter.apply(me, [tooltipItems]);
|
|
|
+ let lines = [];
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(beforeFooter));
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(footer));
|
|
|
+ lines = pushOrConcat(lines, splitNewlines(afterFooter));
|
|
|
+ return lines;
|
|
|
+ }
|
|
|
+ _createItems(options) {
|
|
|
+ const me = this;
|
|
|
+ const active = me._active;
|
|
|
+ const data = me._chart.data;
|
|
|
+ const labelColors = [];
|
|
|
+ const labelPointStyles = [];
|
|
|
+ const labelTextColors = [];
|
|
|
+ let tooltipItems = [];
|
|
|
+ let i, len;
|
|
|
+ for (i = 0, len = active.length; i < len; ++i) {
|
|
|
+ tooltipItems.push(createTooltipItem(me._chart, active[i]));
|
|
|
+ }
|
|
|
+ if (options.filter) {
|
|
|
+ tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data));
|
|
|
+ }
|
|
|
+ if (options.itemSort) {
|
|
|
+ tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data));
|
|
|
+ }
|
|
|
+ each(tooltipItems, (context) => {
|
|
|
+ const scoped = overrideCallbacks(options.callbacks, context);
|
|
|
+ labelColors.push(scoped.labelColor.call(me, context));
|
|
|
+ labelPointStyles.push(scoped.labelPointStyle.call(me, context));
|
|
|
+ labelTextColors.push(scoped.labelTextColor.call(me, context));
|
|
|
+ });
|
|
|
+ me.labelColors = labelColors;
|
|
|
+ me.labelPointStyles = labelPointStyles;
|
|
|
+ me.labelTextColors = labelTextColors;
|
|
|
+ me.dataPoints = tooltipItems;
|
|
|
+ return tooltipItems;
|
|
|
+ }
|
|
|
+ update(changed, replay) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options.setContext(me.getContext());
|
|
|
+ const active = me._active;
|
|
|
+ let properties;
|
|
|
+ let tooltipItems = [];
|
|
|
+ if (!active.length) {
|
|
|
+ if (me.opacity !== 0) {
|
|
|
+ properties = {
|
|
|
+ opacity: 0
|
|
|
+ };
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ const position = positioners[options.position].call(me, active, me._eventPosition);
|
|
|
+ tooltipItems = me._createItems(options);
|
|
|
+ me.title = me.getTitle(tooltipItems, options);
|
|
|
+ me.beforeBody = me.getBeforeBody(tooltipItems, options);
|
|
|
+ me.body = me.getBody(tooltipItems, options);
|
|
|
+ me.afterBody = me.getAfterBody(tooltipItems, options);
|
|
|
+ me.footer = me.getFooter(tooltipItems, options);
|
|
|
+ const size = me._size = getTooltipSize(me, options);
|
|
|
+ const positionAndSize = Object.assign({}, position, size);
|
|
|
+ const alignment = determineAlignment(me._chart, options, positionAndSize);
|
|
|
+ const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, me._chart);
|
|
|
+ me.xAlign = alignment.xAlign;
|
|
|
+ me.yAlign = alignment.yAlign;
|
|
|
+ properties = {
|
|
|
+ opacity: 1,
|
|
|
+ x: backgroundPoint.x,
|
|
|
+ y: backgroundPoint.y,
|
|
|
+ width: size.width,
|
|
|
+ height: size.height,
|
|
|
+ caretX: position.x,
|
|
|
+ caretY: position.y
|
|
|
+ };
|
|
|
+ }
|
|
|
+ me._tooltipItems = tooltipItems;
|
|
|
+ me.$context = undefined;
|
|
|
+ if (properties) {
|
|
|
+ me._resolveAnimations().update(me, properties);
|
|
|
+ }
|
|
|
+ if (changed && options.external) {
|
|
|
+ options.external.call(me, {chart: me._chart, tooltip: me, replay});
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawCaret(tooltipPoint, ctx, size, options) {
|
|
|
+ const caretPosition = this.getCaretPosition(tooltipPoint, size, options);
|
|
|
+ ctx.lineTo(caretPosition.x1, caretPosition.y1);
|
|
|
+ ctx.lineTo(caretPosition.x2, caretPosition.y2);
|
|
|
+ ctx.lineTo(caretPosition.x3, caretPosition.y3);
|
|
|
+ }
|
|
|
+ getCaretPosition(tooltipPoint, size, options) {
|
|
|
+ const {xAlign, yAlign} = this;
|
|
|
+ const {cornerRadius, caretSize} = options;
|
|
|
+ const {x: ptX, y: ptY} = tooltipPoint;
|
|
|
+ const {width, height} = size;
|
|
|
+ let x1, x2, x3, y1, y2, y3;
|
|
|
+ if (yAlign === 'center') {
|
|
|
+ y2 = ptY + (height / 2);
|
|
|
+ if (xAlign === 'left') {
|
|
|
+ x1 = ptX;
|
|
|
+ x2 = x1 - caretSize;
|
|
|
+ y1 = y2 + caretSize;
|
|
|
+ y3 = y2 - caretSize;
|
|
|
+ } else {
|
|
|
+ x1 = ptX + width;
|
|
|
+ x2 = x1 + caretSize;
|
|
|
+ y1 = y2 - caretSize;
|
|
|
+ y3 = y2 + caretSize;
|
|
|
+ }
|
|
|
+ x3 = x1;
|
|
|
+ } else {
|
|
|
+ if (xAlign === 'left') {
|
|
|
+ x2 = ptX + cornerRadius + (caretSize);
|
|
|
+ } else if (xAlign === 'right') {
|
|
|
+ x2 = ptX + width - cornerRadius - caretSize;
|
|
|
+ } else {
|
|
|
+ x2 = this.caretX;
|
|
|
+ }
|
|
|
+ if (yAlign === 'top') {
|
|
|
+ y1 = ptY;
|
|
|
+ y2 = y1 - caretSize;
|
|
|
+ x1 = x2 - caretSize;
|
|
|
+ x3 = x2 + caretSize;
|
|
|
+ } else {
|
|
|
+ y1 = ptY + height;
|
|
|
+ y2 = y1 + caretSize;
|
|
|
+ x1 = x2 + caretSize;
|
|
|
+ x3 = x2 - caretSize;
|
|
|
+ }
|
|
|
+ y3 = y1;
|
|
|
+ }
|
|
|
+ return {x1, x2, x3, y1, y2, y3};
|
|
|
+ }
|
|
|
+ drawTitle(pt, ctx, options) {
|
|
|
+ const me = this;
|
|
|
+ const title = me.title;
|
|
|
+ const length = title.length;
|
|
|
+ let titleFont, titleSpacing, i;
|
|
|
+ if (length) {
|
|
|
+ const rtlHelper = getRtlAdapter(options.rtl, me.x, me.width);
|
|
|
+ pt.x = getAlignedX(me, options.titleAlign, options);
|
|
|
+ ctx.textAlign = rtlHelper.textAlign(options.titleAlign);
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ titleFont = toFont(options.titleFont);
|
|
|
+ titleSpacing = options.titleSpacing;
|
|
|
+ ctx.fillStyle = options.titleColor;
|
|
|
+ ctx.font = titleFont.string;
|
|
|
+ for (i = 0; i < length; ++i) {
|
|
|
+ ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2);
|
|
|
+ pt.y += titleFont.lineHeight + titleSpacing;
|
|
|
+ if (i + 1 === length) {
|
|
|
+ pt.y += options.titleMarginBottom - titleSpacing;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _drawColorBox(ctx, pt, i, rtlHelper, options) {
|
|
|
+ const me = this;
|
|
|
+ const labelColors = me.labelColors[i];
|
|
|
+ const labelPointStyle = me.labelPointStyles[i];
|
|
|
+ const {boxHeight, boxWidth} = options;
|
|
|
+ const bodyFont = toFont(options.bodyFont);
|
|
|
+ const colorX = getAlignedX(me, 'left', options);
|
|
|
+ const rtlColorX = rtlHelper.x(colorX);
|
|
|
+ const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0;
|
|
|
+ const colorY = pt.y + yOffSet;
|
|
|
+ if (options.usePointStyle) {
|
|
|
+ const drawOptions = {
|
|
|
+ radius: Math.min(boxWidth, boxHeight) / 2,
|
|
|
+ pointStyle: labelPointStyle.pointStyle,
|
|
|
+ rotation: labelPointStyle.rotation,
|
|
|
+ borderWidth: 1
|
|
|
+ };
|
|
|
+ const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2;
|
|
|
+ const centerY = colorY + boxHeight / 2;
|
|
|
+ ctx.strokeStyle = options.multiKeyBackground;
|
|
|
+ ctx.fillStyle = options.multiKeyBackground;
|
|
|
+ drawPoint(ctx, drawOptions, centerX, centerY);
|
|
|
+ ctx.strokeStyle = labelColors.borderColor;
|
|
|
+ ctx.fillStyle = labelColors.backgroundColor;
|
|
|
+ drawPoint(ctx, drawOptions, centerX, centerY);
|
|
|
+ } else {
|
|
|
+ ctx.lineWidth = labelColors.borderWidth || 1;
|
|
|
+ ctx.strokeStyle = labelColors.borderColor;
|
|
|
+ ctx.setLineDash(labelColors.borderDash || []);
|
|
|
+ ctx.lineDashOffset = labelColors.borderDashOffset || 0;
|
|
|
+ const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth);
|
|
|
+ const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - 2);
|
|
|
+ const borderRadius = toTRBLCorners(labelColors.borderRadius);
|
|
|
+ if (Object.values(borderRadius).some(v => v !== 0)) {
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.fillStyle = options.multiKeyBackground;
|
|
|
+ addRoundedRectPath(ctx, {
|
|
|
+ x: outerX,
|
|
|
+ y: colorY,
|
|
|
+ w: boxWidth,
|
|
|
+ h: boxHeight,
|
|
|
+ radius: borderRadius,
|
|
|
+ });
|
|
|
+ ctx.fill();
|
|
|
+ ctx.stroke();
|
|
|
+ ctx.fillStyle = labelColors.backgroundColor;
|
|
|
+ ctx.beginPath();
|
|
|
+ addRoundedRectPath(ctx, {
|
|
|
+ x: innerX,
|
|
|
+ y: colorY + 1,
|
|
|
+ w: boxWidth - 2,
|
|
|
+ h: boxHeight - 2,
|
|
|
+ radius: borderRadius,
|
|
|
+ });
|
|
|
+ ctx.fill();
|
|
|
+ } else {
|
|
|
+ ctx.fillStyle = options.multiKeyBackground;
|
|
|
+ ctx.fillRect(outerX, colorY, boxWidth, boxHeight);
|
|
|
+ ctx.strokeRect(outerX, colorY, boxWidth, boxHeight);
|
|
|
+ ctx.fillStyle = labelColors.backgroundColor;
|
|
|
+ ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ctx.fillStyle = me.labelTextColors[i];
|
|
|
+ }
|
|
|
+ drawBody(pt, ctx, options) {
|
|
|
+ const me = this;
|
|
|
+ const {body} = me;
|
|
|
+ const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth} = options;
|
|
|
+ const bodyFont = toFont(options.bodyFont);
|
|
|
+ let bodyLineHeight = bodyFont.lineHeight;
|
|
|
+ let xLinePadding = 0;
|
|
|
+ const rtlHelper = getRtlAdapter(options.rtl, me.x, me.width);
|
|
|
+ const fillLineOfText = function(line) {
|
|
|
+ ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2);
|
|
|
+ pt.y += bodyLineHeight + bodySpacing;
|
|
|
+ };
|
|
|
+ const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);
|
|
|
+ let bodyItem, textColor, lines, i, j, ilen, jlen;
|
|
|
+ ctx.textAlign = bodyAlign;
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ ctx.font = bodyFont.string;
|
|
|
+ pt.x = getAlignedX(me, bodyAlignForCalculation, options);
|
|
|
+ ctx.fillStyle = options.bodyColor;
|
|
|
+ each(me.beforeBody, fillLineOfText);
|
|
|
+ xLinePadding = displayColors && bodyAlignForCalculation !== 'right'
|
|
|
+ ? bodyAlign === 'center' ? (boxWidth / 2 + 1) : (boxWidth + 2)
|
|
|
+ : 0;
|
|
|
+ for (i = 0, ilen = body.length; i < ilen; ++i) {
|
|
|
+ bodyItem = body[i];
|
|
|
+ textColor = me.labelTextColors[i];
|
|
|
+ ctx.fillStyle = textColor;
|
|
|
+ each(bodyItem.before, fillLineOfText);
|
|
|
+ lines = bodyItem.lines;
|
|
|
+ if (displayColors && lines.length) {
|
|
|
+ me._drawColorBox(ctx, pt, i, rtlHelper, options);
|
|
|
+ bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight);
|
|
|
+ }
|
|
|
+ for (j = 0, jlen = lines.length; j < jlen; ++j) {
|
|
|
+ fillLineOfText(lines[j]);
|
|
|
+ bodyLineHeight = bodyFont.lineHeight;
|
|
|
+ }
|
|
|
+ each(bodyItem.after, fillLineOfText);
|
|
|
+ }
|
|
|
+ xLinePadding = 0;
|
|
|
+ bodyLineHeight = bodyFont.lineHeight;
|
|
|
+ each(me.afterBody, fillLineOfText);
|
|
|
+ pt.y -= bodySpacing;
|
|
|
+ }
|
|
|
+ drawFooter(pt, ctx, options) {
|
|
|
+ const me = this;
|
|
|
+ const footer = me.footer;
|
|
|
+ const length = footer.length;
|
|
|
+ let footerFont, i;
|
|
|
+ if (length) {
|
|
|
+ const rtlHelper = getRtlAdapter(options.rtl, me.x, me.width);
|
|
|
+ pt.x = getAlignedX(me, options.footerAlign, options);
|
|
|
+ pt.y += options.footerMarginTop;
|
|
|
+ ctx.textAlign = rtlHelper.textAlign(options.footerAlign);
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ footerFont = toFont(options.footerFont);
|
|
|
+ ctx.fillStyle = options.footerColor;
|
|
|
+ ctx.font = footerFont.string;
|
|
|
+ for (i = 0; i < length; ++i) {
|
|
|
+ ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2);
|
|
|
+ pt.y += footerFont.lineHeight + options.footerSpacing;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawBackground(pt, ctx, tooltipSize, options) {
|
|
|
+ const {xAlign, yAlign} = this;
|
|
|
+ const {x, y} = pt;
|
|
|
+ const {width, height} = tooltipSize;
|
|
|
+ const radius = options.cornerRadius;
|
|
|
+ ctx.fillStyle = options.backgroundColor;
|
|
|
+ ctx.strokeStyle = options.borderColor;
|
|
|
+ ctx.lineWidth = options.borderWidth;
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo(x + radius, y);
|
|
|
+ if (yAlign === 'top') {
|
|
|
+ this.drawCaret(pt, ctx, tooltipSize, options);
|
|
|
+ }
|
|
|
+ ctx.lineTo(x + width - radius, y);
|
|
|
+ ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
|
|
|
+ if (yAlign === 'center' && xAlign === 'right') {
|
|
|
+ this.drawCaret(pt, ctx, tooltipSize, options);
|
|
|
+ }
|
|
|
+ ctx.lineTo(x + width, y + height - radius);
|
|
|
+ ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
|
|
|
+ if (yAlign === 'bottom') {
|
|
|
+ this.drawCaret(pt, ctx, tooltipSize, options);
|
|
|
+ }
|
|
|
+ ctx.lineTo(x + radius, y + height);
|
|
|
+ ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
|
|
|
+ if (yAlign === 'center' && xAlign === 'left') {
|
|
|
+ this.drawCaret(pt, ctx, tooltipSize, options);
|
|
|
+ }
|
|
|
+ ctx.lineTo(x, y + radius);
|
|
|
+ ctx.quadraticCurveTo(x, y, x + radius, y);
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.fill();
|
|
|
+ if (options.borderWidth > 0) {
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _updateAnimationTarget(options) {
|
|
|
+ const me = this;
|
|
|
+ const chart = me._chart;
|
|
|
+ const anims = me.$animations;
|
|
|
+ const animX = anims && anims.x;
|
|
|
+ const animY = anims && anims.y;
|
|
|
+ if (animX || animY) {
|
|
|
+ const position = positioners[options.position].call(me, me._active, me._eventPosition);
|
|
|
+ if (!position) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const size = me._size = getTooltipSize(me, options);
|
|
|
+ const positionAndSize = Object.assign({}, position, me._size);
|
|
|
+ const alignment = determineAlignment(chart, options, positionAndSize);
|
|
|
+ const point = getBackgroundPoint(options, positionAndSize, alignment, chart);
|
|
|
+ if (animX._to !== point.x || animY._to !== point.y) {
|
|
|
+ me.xAlign = alignment.xAlign;
|
|
|
+ me.yAlign = alignment.yAlign;
|
|
|
+ me.width = size.width;
|
|
|
+ me.height = size.height;
|
|
|
+ me.caretX = position.x;
|
|
|
+ me.caretY = position.y;
|
|
|
+ me._resolveAnimations().update(me, point);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ draw(ctx) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options.setContext(me.getContext());
|
|
|
+ let opacity = me.opacity;
|
|
|
+ if (!opacity) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ me._updateAnimationTarget(options);
|
|
|
+ const tooltipSize = {
|
|
|
+ width: me.width,
|
|
|
+ height: me.height
|
|
|
+ };
|
|
|
+ const pt = {
|
|
|
+ x: me.x,
|
|
|
+ y: me.y
|
|
|
+ };
|
|
|
+ opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity;
|
|
|
+ const padding = toPadding(options.padding);
|
|
|
+ const hasTooltipContent = me.title.length || me.beforeBody.length || me.body.length || me.afterBody.length || me.footer.length;
|
|
|
+ if (options.enabled && hasTooltipContent) {
|
|
|
+ ctx.save();
|
|
|
+ ctx.globalAlpha = opacity;
|
|
|
+ me.drawBackground(pt, ctx, tooltipSize, options);
|
|
|
+ overrideTextDirection(ctx, options.textDirection);
|
|
|
+ pt.y += padding.top;
|
|
|
+ me.drawTitle(pt, ctx, options);
|
|
|
+ me.drawBody(pt, ctx, options);
|
|
|
+ me.drawFooter(pt, ctx, options);
|
|
|
+ restoreTextDirection(ctx, options.textDirection);
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getActiveElements() {
|
|
|
+ return this._active || [];
|
|
|
+ }
|
|
|
+ setActiveElements(activeElements, eventPosition) {
|
|
|
+ const me = this;
|
|
|
+ const lastActive = me._active;
|
|
|
+ const active = activeElements.map(({datasetIndex, index}) => {
|
|
|
+ const meta = me._chart.getDatasetMeta(datasetIndex);
|
|
|
+ if (!meta) {
|
|
|
+ throw new Error('Cannot find a dataset at index ' + datasetIndex);
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ datasetIndex,
|
|
|
+ element: meta.data[index],
|
|
|
+ index,
|
|
|
+ };
|
|
|
+ });
|
|
|
+ const changed = !_elementsEqual(lastActive, active);
|
|
|
+ const positionChanged = me._positionChanged(active, eventPosition);
|
|
|
+ if (changed || positionChanged) {
|
|
|
+ me._active = active;
|
|
|
+ me._eventPosition = eventPosition;
|
|
|
+ me.update(true);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ handleEvent(e, replay) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const lastActive = me._active || [];
|
|
|
+ let changed = false;
|
|
|
+ let active = [];
|
|
|
+ if (e.type !== 'mouseout') {
|
|
|
+ active = me._chart.getElementsAtEventForMode(e, options.mode, options, replay);
|
|
|
+ if (options.reverse) {
|
|
|
+ active.reverse();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ const positionChanged = me._positionChanged(active, e);
|
|
|
+ changed = replay || !_elementsEqual(active, lastActive) || positionChanged;
|
|
|
+ if (changed) {
|
|
|
+ me._active = active;
|
|
|
+ if (options.enabled || options.external) {
|
|
|
+ me._eventPosition = {
|
|
|
+ x: e.x,
|
|
|
+ y: e.y
|
|
|
+ };
|
|
|
+ me.update(true, replay);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return changed;
|
|
|
+ }
|
|
|
+ _positionChanged(active, e) {
|
|
|
+ const {caretX, caretY, options} = this;
|
|
|
+ const position = positioners[options.position].call(this, active, e);
|
|
|
+ return position !== false && (caretX !== position.x || caretY !== position.y);
|
|
|
+ }
|
|
|
+}
|
|
|
+Tooltip.positioners = positioners;
|
|
|
+var plugin_tooltip = {
|
|
|
+ id: 'tooltip',
|
|
|
+ _element: Tooltip,
|
|
|
+ positioners,
|
|
|
+ afterInit(chart, _args, options) {
|
|
|
+ if (options) {
|
|
|
+ chart.tooltip = new Tooltip({_chart: chart, options});
|
|
|
+ }
|
|
|
+ },
|
|
|
+ beforeUpdate(chart, _args, options) {
|
|
|
+ if (chart.tooltip) {
|
|
|
+ chart.tooltip.initialize(options);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ reset(chart, _args, options) {
|
|
|
+ if (chart.tooltip) {
|
|
|
+ chart.tooltip.initialize(options);
|
|
|
+ }
|
|
|
+ },
|
|
|
+ afterDraw(chart) {
|
|
|
+ const tooltip = chart.tooltip;
|
|
|
+ const args = {
|
|
|
+ tooltip
|
|
|
+ };
|
|
|
+ if (chart.notifyPlugins('beforeTooltipDraw', args) === false) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ if (tooltip) {
|
|
|
+ tooltip.draw(chart.ctx);
|
|
|
+ }
|
|
|
+ chart.notifyPlugins('afterTooltipDraw', args);
|
|
|
+ },
|
|
|
+ afterEvent(chart, args) {
|
|
|
+ if (chart.tooltip) {
|
|
|
+ const useFinalPosition = args.replay;
|
|
|
+ if (chart.tooltip.handleEvent(args.event, useFinalPosition)) {
|
|
|
+ args.changed = true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+ defaults: {
|
|
|
+ enabled: true,
|
|
|
+ external: null,
|
|
|
+ position: 'average',
|
|
|
+ backgroundColor: 'rgba(0,0,0,0.8)',
|
|
|
+ titleColor: '#fff',
|
|
|
+ titleFont: {
|
|
|
+ weight: 'bold',
|
|
|
+ },
|
|
|
+ titleSpacing: 2,
|
|
|
+ titleMarginBottom: 6,
|
|
|
+ titleAlign: 'left',
|
|
|
+ bodyColor: '#fff',
|
|
|
+ bodySpacing: 2,
|
|
|
+ bodyFont: {
|
|
|
+ },
|
|
|
+ bodyAlign: 'left',
|
|
|
+ footerColor: '#fff',
|
|
|
+ footerSpacing: 2,
|
|
|
+ footerMarginTop: 6,
|
|
|
+ footerFont: {
|
|
|
+ weight: 'bold',
|
|
|
+ },
|
|
|
+ footerAlign: 'left',
|
|
|
+ padding: 6,
|
|
|
+ caretPadding: 2,
|
|
|
+ caretSize: 5,
|
|
|
+ cornerRadius: 6,
|
|
|
+ boxHeight: (ctx, opts) => opts.bodyFont.size,
|
|
|
+ boxWidth: (ctx, opts) => opts.bodyFont.size,
|
|
|
+ multiKeyBackground: '#fff',
|
|
|
+ displayColors: true,
|
|
|
+ borderColor: 'rgba(0,0,0,0)',
|
|
|
+ borderWidth: 0,
|
|
|
+ animation: {
|
|
|
+ duration: 400,
|
|
|
+ easing: 'easeOutQuart',
|
|
|
+ },
|
|
|
+ animations: {
|
|
|
+ numbers: {
|
|
|
+ type: 'number',
|
|
|
+ properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'],
|
|
|
+ },
|
|
|
+ opacity: {
|
|
|
+ easing: 'linear',
|
|
|
+ duration: 200
|
|
|
+ }
|
|
|
+ },
|
|
|
+ callbacks: {
|
|
|
+ beforeTitle: noop,
|
|
|
+ title(tooltipItems) {
|
|
|
+ if (tooltipItems.length > 0) {
|
|
|
+ const item = tooltipItems[0];
|
|
|
+ const labels = item.chart.data.labels;
|
|
|
+ const labelCount = labels ? labels.length : 0;
|
|
|
+ if (this && this.options && this.options.mode === 'dataset') {
|
|
|
+ return item.dataset.label || '';
|
|
|
+ } else if (item.label) {
|
|
|
+ return item.label;
|
|
|
+ } else if (labelCount > 0 && item.dataIndex < labelCount) {
|
|
|
+ return labels[item.dataIndex];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return '';
|
|
|
+ },
|
|
|
+ afterTitle: noop,
|
|
|
+ beforeBody: noop,
|
|
|
+ beforeLabel: noop,
|
|
|
+ label(tooltipItem) {
|
|
|
+ if (this && this.options && this.options.mode === 'dataset') {
|
|
|
+ return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue;
|
|
|
+ }
|
|
|
+ let label = tooltipItem.dataset.label || '';
|
|
|
+ if (label) {
|
|
|
+ label += ': ';
|
|
|
+ }
|
|
|
+ const value = tooltipItem.formattedValue;
|
|
|
+ if (!isNullOrUndef(value)) {
|
|
|
+ label += value;
|
|
|
+ }
|
|
|
+ return label;
|
|
|
+ },
|
|
|
+ labelColor(tooltipItem) {
|
|
|
+ const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);
|
|
|
+ const options = meta.controller.getStyle(tooltipItem.dataIndex);
|
|
|
+ return {
|
|
|
+ borderColor: options.borderColor,
|
|
|
+ backgroundColor: options.backgroundColor,
|
|
|
+ borderWidth: options.borderWidth,
|
|
|
+ borderDash: options.borderDash,
|
|
|
+ borderDashOffset: options.borderDashOffset,
|
|
|
+ borderRadius: 0,
|
|
|
+ };
|
|
|
+ },
|
|
|
+ labelTextColor() {
|
|
|
+ return this.options.bodyColor;
|
|
|
+ },
|
|
|
+ labelPointStyle(tooltipItem) {
|
|
|
+ const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex);
|
|
|
+ const options = meta.controller.getStyle(tooltipItem.dataIndex);
|
|
|
+ return {
|
|
|
+ pointStyle: options.pointStyle,
|
|
|
+ rotation: options.rotation,
|
|
|
+ };
|
|
|
+ },
|
|
|
+ afterLabel: noop,
|
|
|
+ afterBody: noop,
|
|
|
+ beforeFooter: noop,
|
|
|
+ footer: noop,
|
|
|
+ afterFooter: noop
|
|
|
+ }
|
|
|
+ },
|
|
|
+ defaultRoutes: {
|
|
|
+ bodyFont: 'font',
|
|
|
+ footerFont: 'font',
|
|
|
+ titleFont: 'font'
|
|
|
+ },
|
|
|
+ descriptors: {
|
|
|
+ _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external',
|
|
|
+ _indexable: false,
|
|
|
+ callbacks: {
|
|
|
+ _scriptable: false,
|
|
|
+ _indexable: false,
|
|
|
+ },
|
|
|
+ animation: {
|
|
|
+ _fallback: false
|
|
|
+ },
|
|
|
+ animations: {
|
|
|
+ _fallback: 'animation'
|
|
|
+ }
|
|
|
+ },
|
|
|
+ additionalOptionScopes: ['interaction']
|
|
|
+};
|
|
|
+
|
|
|
+var plugins = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+Decimation: plugin_decimation,
|
|
|
+Filler: plugin_filler,
|
|
|
+Legend: plugin_legend,
|
|
|
+SubTitle: plugin_subtitle,
|
|
|
+Title: plugin_title,
|
|
|
+Tooltip: plugin_tooltip
|
|
|
+});
|
|
|
+
|
|
|
+const addIfString = (labels, raw, index) => typeof raw === 'string'
|
|
|
+ ? labels.push(raw) - 1
|
|
|
+ : isNaN(raw) ? null : index;
|
|
|
+function findOrAddLabel(labels, raw, index) {
|
|
|
+ const first = labels.indexOf(raw);
|
|
|
+ if (first === -1) {
|
|
|
+ return addIfString(labels, raw, index);
|
|
|
+ }
|
|
|
+ const last = labels.lastIndexOf(raw);
|
|
|
+ return first !== last ? index : first;
|
|
|
+}
|
|
|
+const validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max);
|
|
|
+class CategoryScale extends Scale {
|
|
|
+ constructor(cfg) {
|
|
|
+ super(cfg);
|
|
|
+ this._startValue = undefined;
|
|
|
+ this._valueRange = 0;
|
|
|
+ }
|
|
|
+ parse(raw, index) {
|
|
|
+ if (isNullOrUndef(raw)) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ const labels = this.getLabels();
|
|
|
+ index = isFinite(index) && labels[index] === raw ? index
|
|
|
+ : findOrAddLabel(labels, raw, valueOrDefault(index, raw));
|
|
|
+ return validIndex(index, labels.length - 1);
|
|
|
+ }
|
|
|
+ determineDataLimits() {
|
|
|
+ const me = this;
|
|
|
+ const {minDefined, maxDefined} = me.getUserBounds();
|
|
|
+ let {min, max} = me.getMinMax(true);
|
|
|
+ if (me.options.bounds === 'ticks') {
|
|
|
+ if (!minDefined) {
|
|
|
+ min = 0;
|
|
|
+ }
|
|
|
+ if (!maxDefined) {
|
|
|
+ max = me.getLabels().length - 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me.min = min;
|
|
|
+ me.max = max;
|
|
|
+ }
|
|
|
+ buildTicks() {
|
|
|
+ const me = this;
|
|
|
+ const min = me.min;
|
|
|
+ const max = me.max;
|
|
|
+ const offset = me.options.offset;
|
|
|
+ const ticks = [];
|
|
|
+ let labels = me.getLabels();
|
|
|
+ labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1);
|
|
|
+ me._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1);
|
|
|
+ me._startValue = me.min - (offset ? 0.5 : 0);
|
|
|
+ for (let value = min; value <= max; value++) {
|
|
|
+ ticks.push({value});
|
|
|
+ }
|
|
|
+ return ticks;
|
|
|
+ }
|
|
|
+ getLabelForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ const labels = me.getLabels();
|
|
|
+ if (value >= 0 && value < labels.length) {
|
|
|
+ return labels[value];
|
|
|
+ }
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ configure() {
|
|
|
+ const me = this;
|
|
|
+ super.configure();
|
|
|
+ if (!me.isHorizontal()) {
|
|
|
+ me._reversePixels = !me._reversePixels;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getPixelForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ if (typeof value !== 'number') {
|
|
|
+ value = me.parse(value);
|
|
|
+ }
|
|
|
+ return value === null ? NaN : me.getPixelForDecimal((value - me._startValue) / me._valueRange);
|
|
|
+ }
|
|
|
+ getPixelForTick(index) {
|
|
|
+ const me = this;
|
|
|
+ const ticks = me.ticks;
|
|
|
+ if (index < 0 || index > ticks.length - 1) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ return me.getPixelForValue(ticks[index].value);
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {
|
|
|
+ const me = this;
|
|
|
+ return Math.round(me._startValue + me.getDecimalForPixel(pixel) * me._valueRange);
|
|
|
+ }
|
|
|
+ getBasePixel() {
|
|
|
+ return this.bottom;
|
|
|
+ }
|
|
|
+}
|
|
|
+CategoryScale.id = 'category';
|
|
|
+CategoryScale.defaults = {
|
|
|
+ ticks: {
|
|
|
+ callback: CategoryScale.prototype.getLabelForValue
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function generateTicks$1(generationOptions, dataRange) {
|
|
|
+ const ticks = [];
|
|
|
+ const MIN_SPACING = 1e-14;
|
|
|
+ const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions;
|
|
|
+ const unit = step || 1;
|
|
|
+ const maxSpaces = maxTicks - 1;
|
|
|
+ const {min: rmin, max: rmax} = dataRange;
|
|
|
+ const minDefined = !isNullOrUndef(min);
|
|
|
+ const maxDefined = !isNullOrUndef(max);
|
|
|
+ const countDefined = !isNullOrUndef(count);
|
|
|
+ const minSpacing = (rmax - rmin) / (maxDigits + 1);
|
|
|
+ let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit;
|
|
|
+ let factor, niceMin, niceMax, numSpaces;
|
|
|
+ if (spacing < MIN_SPACING && !minDefined && !maxDefined) {
|
|
|
+ return [{value: rmin}, {value: rmax}];
|
|
|
+ }
|
|
|
+ numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);
|
|
|
+ if (numSpaces > maxSpaces) {
|
|
|
+ spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit;
|
|
|
+ }
|
|
|
+ if (!isNullOrUndef(precision)) {
|
|
|
+ factor = Math.pow(10, precision);
|
|
|
+ spacing = Math.ceil(spacing * factor) / factor;
|
|
|
+ }
|
|
|
+ if (bounds === 'ticks') {
|
|
|
+ niceMin = Math.floor(rmin / spacing) * spacing;
|
|
|
+ niceMax = Math.ceil(rmax / spacing) * spacing;
|
|
|
+ } else {
|
|
|
+ niceMin = rmin;
|
|
|
+ niceMax = rmax;
|
|
|
+ }
|
|
|
+ if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) {
|
|
|
+ numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks));
|
|
|
+ spacing = (max - min) / numSpaces;
|
|
|
+ niceMin = min;
|
|
|
+ niceMax = max;
|
|
|
+ } else if (countDefined) {
|
|
|
+ niceMin = minDefined ? min : niceMin;
|
|
|
+ niceMax = maxDefined ? max : niceMax;
|
|
|
+ numSpaces = count - 1;
|
|
|
+ spacing = (niceMax - niceMin) / numSpaces;
|
|
|
+ } else {
|
|
|
+ numSpaces = (niceMax - niceMin) / spacing;
|
|
|
+ if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
|
|
|
+ numSpaces = Math.round(numSpaces);
|
|
|
+ } else {
|
|
|
+ numSpaces = Math.ceil(numSpaces);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ const decimalPlaces = Math.max(
|
|
|
+ _decimalPlaces(spacing),
|
|
|
+ _decimalPlaces(niceMin)
|
|
|
+ );
|
|
|
+ factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision);
|
|
|
+ niceMin = Math.round(niceMin * factor) / factor;
|
|
|
+ niceMax = Math.round(niceMax * factor) / factor;
|
|
|
+ let j = 0;
|
|
|
+ if (minDefined) {
|
|
|
+ if (includeBounds && niceMin !== min) {
|
|
|
+ ticks.push({value: min});
|
|
|
+ if (niceMin < min) {
|
|
|
+ j++;
|
|
|
+ }
|
|
|
+ if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) {
|
|
|
+ j++;
|
|
|
+ }
|
|
|
+ } else if (niceMin < min) {
|
|
|
+ j++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ for (; j < numSpaces; ++j) {
|
|
|
+ ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor});
|
|
|
+ }
|
|
|
+ if (maxDefined && includeBounds && niceMax !== max) {
|
|
|
+ if (almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) {
|
|
|
+ ticks[ticks.length - 1].value = max;
|
|
|
+ } else {
|
|
|
+ ticks.push({value: max});
|
|
|
+ }
|
|
|
+ } else if (!maxDefined || niceMax === max) {
|
|
|
+ ticks.push({value: niceMax});
|
|
|
+ }
|
|
|
+ return ticks;
|
|
|
+}
|
|
|
+function relativeLabelSize(value, minSpacing, {horizontal, minRotation}) {
|
|
|
+ const rad = toRadians(minRotation);
|
|
|
+ const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001;
|
|
|
+ const length = 0.75 * minSpacing * ('' + value).length;
|
|
|
+ return Math.min(minSpacing / ratio, length);
|
|
|
+}
|
|
|
+class LinearScaleBase extends Scale {
|
|
|
+ constructor(cfg) {
|
|
|
+ super(cfg);
|
|
|
+ this.start = undefined;
|
|
|
+ this.end = undefined;
|
|
|
+ this._startValue = undefined;
|
|
|
+ this._endValue = undefined;
|
|
|
+ this._valueRange = 0;
|
|
|
+ }
|
|
|
+ parse(raw, index) {
|
|
|
+ if (isNullOrUndef(raw)) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ return +raw;
|
|
|
+ }
|
|
|
+ handleTickRangeOptions() {
|
|
|
+ const me = this;
|
|
|
+ const {beginAtZero} = me.options;
|
|
|
+ const {minDefined, maxDefined} = me.getUserBounds();
|
|
|
+ let {min, max} = me;
|
|
|
+ const setMin = v => (min = minDefined ? min : v);
|
|
|
+ const setMax = v => (max = maxDefined ? max : v);
|
|
|
+ if (beginAtZero) {
|
|
|
+ const minSign = sign(min);
|
|
|
+ const maxSign = sign(max);
|
|
|
+ if (minSign < 0 && maxSign < 0) {
|
|
|
+ setMax(0);
|
|
|
+ } else if (minSign > 0 && maxSign > 0) {
|
|
|
+ setMin(0);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (min === max) {
|
|
|
+ let offset = 1;
|
|
|
+ if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) {
|
|
|
+ offset = Math.abs(max * 0.05);
|
|
|
+ }
|
|
|
+ setMax(max + offset);
|
|
|
+ if (!beginAtZero) {
|
|
|
+ setMin(min - offset);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ me.min = min;
|
|
|
+ me.max = max;
|
|
|
+ }
|
|
|
+ getTickLimit() {
|
|
|
+ const me = this;
|
|
|
+ const tickOpts = me.options.ticks;
|
|
|
+ let {maxTicksLimit, stepSize} = tickOpts;
|
|
|
+ let maxTicks;
|
|
|
+ if (stepSize) {
|
|
|
+ maxTicks = Math.ceil(me.max / stepSize) - Math.floor(me.min / stepSize) + 1;
|
|
|
+ } else {
|
|
|
+ maxTicks = me.computeTickLimit();
|
|
|
+ maxTicksLimit = maxTicksLimit || 11;
|
|
|
+ }
|
|
|
+ if (maxTicksLimit) {
|
|
|
+ maxTicks = Math.min(maxTicksLimit, maxTicks);
|
|
|
+ }
|
|
|
+ return maxTicks;
|
|
|
+ }
|
|
|
+ computeTickLimit() {
|
|
|
+ return Number.POSITIVE_INFINITY;
|
|
|
+ }
|
|
|
+ buildTicks() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const tickOpts = opts.ticks;
|
|
|
+ let maxTicks = me.getTickLimit();
|
|
|
+ maxTicks = Math.max(2, maxTicks);
|
|
|
+ const numericGeneratorOptions = {
|
|
|
+ maxTicks,
|
|
|
+ bounds: opts.bounds,
|
|
|
+ min: opts.min,
|
|
|
+ max: opts.max,
|
|
|
+ precision: tickOpts.precision,
|
|
|
+ step: tickOpts.stepSize,
|
|
|
+ count: tickOpts.count,
|
|
|
+ maxDigits: me._maxDigits(),
|
|
|
+ horizontal: me.isHorizontal(),
|
|
|
+ minRotation: tickOpts.minRotation || 0,
|
|
|
+ includeBounds: tickOpts.includeBounds !== false
|
|
|
+ };
|
|
|
+ const dataRange = me._range || me;
|
|
|
+ const ticks = generateTicks$1(numericGeneratorOptions, dataRange);
|
|
|
+ if (opts.bounds === 'ticks') {
|
|
|
+ _setMinAndMaxByKey(ticks, me, 'value');
|
|
|
+ }
|
|
|
+ if (opts.reverse) {
|
|
|
+ ticks.reverse();
|
|
|
+ me.start = me.max;
|
|
|
+ me.end = me.min;
|
|
|
+ } else {
|
|
|
+ me.start = me.min;
|
|
|
+ me.end = me.max;
|
|
|
+ }
|
|
|
+ return ticks;
|
|
|
+ }
|
|
|
+ configure() {
|
|
|
+ const me = this;
|
|
|
+ const ticks = me.ticks;
|
|
|
+ let start = me.min;
|
|
|
+ let end = me.max;
|
|
|
+ super.configure();
|
|
|
+ if (me.options.offset && ticks.length) {
|
|
|
+ const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;
|
|
|
+ start -= offset;
|
|
|
+ end += offset;
|
|
|
+ }
|
|
|
+ me._startValue = start;
|
|
|
+ me._endValue = end;
|
|
|
+ me._valueRange = end - start;
|
|
|
+ }
|
|
|
+ getLabelForValue(value) {
|
|
|
+ return formatNumber(value, this.chart.options.locale);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+class LinearScale extends LinearScaleBase {
|
|
|
+ determineDataLimits() {
|
|
|
+ const me = this;
|
|
|
+ const {min, max} = me.getMinMax(true);
|
|
|
+ me.min = isNumberFinite(min) ? min : 0;
|
|
|
+ me.max = isNumberFinite(max) ? max : 1;
|
|
|
+ me.handleTickRangeOptions();
|
|
|
+ }
|
|
|
+ computeTickLimit() {
|
|
|
+ const me = this;
|
|
|
+ const horizontal = me.isHorizontal();
|
|
|
+ const length = horizontal ? me.width : me.height;
|
|
|
+ const minRotation = toRadians(me.options.ticks.minRotation);
|
|
|
+ const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001;
|
|
|
+ const tickFont = me._resolveTickFontOptions(0);
|
|
|
+ return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio));
|
|
|
+ }
|
|
|
+ getPixelForValue(value) {
|
|
|
+ return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {
|
|
|
+ return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;
|
|
|
+ }
|
|
|
+}
|
|
|
+LinearScale.id = 'linear';
|
|
|
+LinearScale.defaults = {
|
|
|
+ ticks: {
|
|
|
+ callback: Ticks.formatters.numeric
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function isMajor(tickVal) {
|
|
|
+ const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal))));
|
|
|
+ return remain === 1;
|
|
|
+}
|
|
|
+function generateTicks(generationOptions, dataRange) {
|
|
|
+ const endExp = Math.floor(log10(dataRange.max));
|
|
|
+ const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
|
|
|
+ const ticks = [];
|
|
|
+ let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min))));
|
|
|
+ let exp = Math.floor(log10(tickVal));
|
|
|
+ let significand = Math.floor(tickVal / Math.pow(10, exp));
|
|
|
+ let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
|
|
|
+ do {
|
|
|
+ ticks.push({value: tickVal, major: isMajor(tickVal)});
|
|
|
+ ++significand;
|
|
|
+ if (significand === 10) {
|
|
|
+ significand = 1;
|
|
|
+ ++exp;
|
|
|
+ precision = exp >= 0 ? 1 : precision;
|
|
|
+ }
|
|
|
+ tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
|
|
|
+ } while (exp < endExp || (exp === endExp && significand < endSignificand));
|
|
|
+ const lastTick = finiteOrDefault(generationOptions.max, tickVal);
|
|
|
+ ticks.push({value: lastTick, major: isMajor(tickVal)});
|
|
|
+ return ticks;
|
|
|
+}
|
|
|
+class LogarithmicScale extends Scale {
|
|
|
+ constructor(cfg) {
|
|
|
+ super(cfg);
|
|
|
+ this.start = undefined;
|
|
|
+ this.end = undefined;
|
|
|
+ this._startValue = undefined;
|
|
|
+ this._valueRange = 0;
|
|
|
+ }
|
|
|
+ parse(raw, index) {
|
|
|
+ const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]);
|
|
|
+ if (value === 0) {
|
|
|
+ this._zero = true;
|
|
|
+ return undefined;
|
|
|
+ }
|
|
|
+ return isNumberFinite(value) && value > 0 ? value : null;
|
|
|
+ }
|
|
|
+ determineDataLimits() {
|
|
|
+ const me = this;
|
|
|
+ const {min, max} = me.getMinMax(true);
|
|
|
+ me.min = isNumberFinite(min) ? Math.max(0, min) : null;
|
|
|
+ me.max = isNumberFinite(max) ? Math.max(0, max) : null;
|
|
|
+ if (me.options.beginAtZero) {
|
|
|
+ me._zero = true;
|
|
|
+ }
|
|
|
+ me.handleTickRangeOptions();
|
|
|
+ }
|
|
|
+ handleTickRangeOptions() {
|
|
|
+ const me = this;
|
|
|
+ const {minDefined, maxDefined} = me.getUserBounds();
|
|
|
+ let min = me.min;
|
|
|
+ let max = me.max;
|
|
|
+ const setMin = v => (min = minDefined ? min : v);
|
|
|
+ const setMax = v => (max = maxDefined ? max : v);
|
|
|
+ const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m);
|
|
|
+ if (min === max) {
|
|
|
+ if (min <= 0) {
|
|
|
+ setMin(1);
|
|
|
+ setMax(10);
|
|
|
+ } else {
|
|
|
+ setMin(exp(min, -1));
|
|
|
+ setMax(exp(max, +1));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (min <= 0) {
|
|
|
+ setMin(exp(max, -1));
|
|
|
+ }
|
|
|
+ if (max <= 0) {
|
|
|
+ setMax(exp(min, +1));
|
|
|
+ }
|
|
|
+ if (me._zero && me.min !== me._suggestedMin && min === exp(me.min, 0)) {
|
|
|
+ setMin(exp(min, -1));
|
|
|
+ }
|
|
|
+ me.min = min;
|
|
|
+ me.max = max;
|
|
|
+ }
|
|
|
+ buildTicks() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ const generationOptions = {
|
|
|
+ min: me._userMin,
|
|
|
+ max: me._userMax
|
|
|
+ };
|
|
|
+ const ticks = generateTicks(generationOptions, me);
|
|
|
+ if (opts.bounds === 'ticks') {
|
|
|
+ _setMinAndMaxByKey(ticks, me, 'value');
|
|
|
+ }
|
|
|
+ if (opts.reverse) {
|
|
|
+ ticks.reverse();
|
|
|
+ me.start = me.max;
|
|
|
+ me.end = me.min;
|
|
|
+ } else {
|
|
|
+ me.start = me.min;
|
|
|
+ me.end = me.max;
|
|
|
+ }
|
|
|
+ return ticks;
|
|
|
+ }
|
|
|
+ getLabelForValue(value) {
|
|
|
+ return value === undefined ? '0' : formatNumber(value, this.chart.options.locale);
|
|
|
+ }
|
|
|
+ configure() {
|
|
|
+ const me = this;
|
|
|
+ const start = me.min;
|
|
|
+ super.configure();
|
|
|
+ me._startValue = log10(start);
|
|
|
+ me._valueRange = log10(me.max) - log10(start);
|
|
|
+ }
|
|
|
+ getPixelForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ if (value === undefined || value === 0) {
|
|
|
+ value = me.min;
|
|
|
+ }
|
|
|
+ if (value === null || isNaN(value)) {
|
|
|
+ return NaN;
|
|
|
+ }
|
|
|
+ return me.getPixelForDecimal(value === me.min
|
|
|
+ ? 0
|
|
|
+ : (log10(value) - me._startValue) / me._valueRange);
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {
|
|
|
+ const me = this;
|
|
|
+ const decimal = me.getDecimalForPixel(pixel);
|
|
|
+ return Math.pow(10, me._startValue + decimal * me._valueRange);
|
|
|
+ }
|
|
|
+}
|
|
|
+LogarithmicScale.id = 'logarithmic';
|
|
|
+LogarithmicScale.defaults = {
|
|
|
+ ticks: {
|
|
|
+ callback: Ticks.formatters.logarithmic,
|
|
|
+ major: {
|
|
|
+ enabled: true
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function getTickBackdropHeight(opts) {
|
|
|
+ const tickOpts = opts.ticks;
|
|
|
+ if (tickOpts.display && opts.display) {
|
|
|
+ const padding = toPadding(tickOpts.backdropPadding);
|
|
|
+ return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+function measureLabelSize(ctx, font, label) {
|
|
|
+ label = isArray(label) ? label : [label];
|
|
|
+ return {
|
|
|
+ w: _longestText(ctx, font.string, label),
|
|
|
+ h: label.length * font.lineHeight
|
|
|
+ };
|
|
|
+}
|
|
|
+function determineLimits(angle, pos, size, min, max) {
|
|
|
+ if (angle === min || angle === max) {
|
|
|
+ return {
|
|
|
+ start: pos - (size / 2),
|
|
|
+ end: pos + (size / 2)
|
|
|
+ };
|
|
|
+ } else if (angle < min || angle > max) {
|
|
|
+ return {
|
|
|
+ start: pos - size,
|
|
|
+ end: pos
|
|
|
+ };
|
|
|
+ }
|
|
|
+ return {
|
|
|
+ start: pos,
|
|
|
+ end: pos + size
|
|
|
+ };
|
|
|
+}
|
|
|
+function fitWithPointLabels(scale) {
|
|
|
+ const furthestLimits = {
|
|
|
+ l: 0,
|
|
|
+ r: scale.width,
|
|
|
+ t: 0,
|
|
|
+ b: scale.height - scale.paddingTop
|
|
|
+ };
|
|
|
+ const furthestAngles = {};
|
|
|
+ const labelSizes = [];
|
|
|
+ const padding = [];
|
|
|
+ const valueCount = scale.getLabels().length;
|
|
|
+ for (let i = 0; i < valueCount; i++) {
|
|
|
+ const opts = scale.options.pointLabels.setContext(scale.getPointLabelContext(i));
|
|
|
+ padding[i] = opts.padding;
|
|
|
+ const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i]);
|
|
|
+ const plFont = toFont(opts.font);
|
|
|
+ const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]);
|
|
|
+ labelSizes[i] = textSize;
|
|
|
+ const angleRadians = scale.getIndexAngle(i);
|
|
|
+ const angle = toDegrees(angleRadians);
|
|
|
+ const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
|
|
|
+ const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
|
|
|
+ if (hLimits.start < furthestLimits.l) {
|
|
|
+ furthestLimits.l = hLimits.start;
|
|
|
+ furthestAngles.l = angleRadians;
|
|
|
+ }
|
|
|
+ if (hLimits.end > furthestLimits.r) {
|
|
|
+ furthestLimits.r = hLimits.end;
|
|
|
+ furthestAngles.r = angleRadians;
|
|
|
+ }
|
|
|
+ if (vLimits.start < furthestLimits.t) {
|
|
|
+ furthestLimits.t = vLimits.start;
|
|
|
+ furthestAngles.t = angleRadians;
|
|
|
+ }
|
|
|
+ if (vLimits.end > furthestLimits.b) {
|
|
|
+ furthestLimits.b = vLimits.end;
|
|
|
+ furthestAngles.b = angleRadians;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ scale._setReductions(scale.drawingArea, furthestLimits, furthestAngles);
|
|
|
+ scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding);
|
|
|
+}
|
|
|
+function buildPointLabelItems(scale, labelSizes, padding) {
|
|
|
+ const items = [];
|
|
|
+ const valueCount = scale.getLabels().length;
|
|
|
+ const opts = scale.options;
|
|
|
+ const tickBackdropHeight = getTickBackdropHeight(opts);
|
|
|
+ const outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
|
|
|
+ for (let i = 0; i < valueCount; i++) {
|
|
|
+ const extra = (i === 0 ? tickBackdropHeight / 2 : 0);
|
|
|
+ const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i]);
|
|
|
+ const angle = toDegrees(scale.getIndexAngle(i));
|
|
|
+ const size = labelSizes[i];
|
|
|
+ const y = yForAngle(pointLabelPosition.y, size.h, angle);
|
|
|
+ const textAlign = getTextAlignForAngle(angle);
|
|
|
+ const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign);
|
|
|
+ items.push({
|
|
|
+ x: pointLabelPosition.x,
|
|
|
+ y,
|
|
|
+ textAlign,
|
|
|
+ left,
|
|
|
+ top: y,
|
|
|
+ right: left + size.w,
|
|
|
+ bottom: y + size.h
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return items;
|
|
|
+}
|
|
|
+function getTextAlignForAngle(angle) {
|
|
|
+ if (angle === 0 || angle === 180) {
|
|
|
+ return 'center';
|
|
|
+ } else if (angle < 180) {
|
|
|
+ return 'left';
|
|
|
+ }
|
|
|
+ return 'right';
|
|
|
+}
|
|
|
+function leftForTextAlign(x, w, align) {
|
|
|
+ if (align === 'right') {
|
|
|
+ x -= w;
|
|
|
+ } else if (align === 'center') {
|
|
|
+ x -= (w / 2);
|
|
|
+ }
|
|
|
+ return x;
|
|
|
+}
|
|
|
+function yForAngle(y, h, angle) {
|
|
|
+ if (angle === 90 || angle === 270) {
|
|
|
+ y -= (h / 2);
|
|
|
+ } else if (angle > 270 || angle < 90) {
|
|
|
+ y -= h;
|
|
|
+ }
|
|
|
+ return y;
|
|
|
+}
|
|
|
+function drawPointLabels(scale, labelCount) {
|
|
|
+ const {ctx, options: {pointLabels}} = scale;
|
|
|
+ for (let i = labelCount - 1; i >= 0; i--) {
|
|
|
+ const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i));
|
|
|
+ const plFont = toFont(optsAtIndex.font);
|
|
|
+ const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i];
|
|
|
+ const {backdropColor} = optsAtIndex;
|
|
|
+ if (!isNullOrUndef(backdropColor)) {
|
|
|
+ const padding = toPadding(optsAtIndex.backdropPadding);
|
|
|
+ ctx.fillStyle = backdropColor;
|
|
|
+ ctx.fillRect(left - padding.left, top - padding.top, right - left + padding.width, bottom - top + padding.height);
|
|
|
+ }
|
|
|
+ renderText(
|
|
|
+ ctx,
|
|
|
+ scale._pointLabels[i],
|
|
|
+ x,
|
|
|
+ y + (plFont.lineHeight / 2),
|
|
|
+ plFont,
|
|
|
+ {
|
|
|
+ color: optsAtIndex.color,
|
|
|
+ textAlign: textAlign,
|
|
|
+ textBaseline: 'middle'
|
|
|
+ }
|
|
|
+ );
|
|
|
+ }
|
|
|
+}
|
|
|
+function pathRadiusLine(scale, radius, circular, labelCount) {
|
|
|
+ const {ctx} = scale;
|
|
|
+ if (circular) {
|
|
|
+ ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU);
|
|
|
+ } else {
|
|
|
+ let pointPosition = scale.getPointPosition(0, radius);
|
|
|
+ ctx.moveTo(pointPosition.x, pointPosition.y);
|
|
|
+ for (let i = 1; i < labelCount; i++) {
|
|
|
+ pointPosition = scale.getPointPosition(i, radius);
|
|
|
+ ctx.lineTo(pointPosition.x, pointPosition.y);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function drawRadiusLine(scale, gridLineOpts, radius, labelCount) {
|
|
|
+ const ctx = scale.ctx;
|
|
|
+ const circular = gridLineOpts.circular;
|
|
|
+ const {color, lineWidth} = gridLineOpts;
|
|
|
+ if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ ctx.save();
|
|
|
+ ctx.strokeStyle = color;
|
|
|
+ ctx.lineWidth = lineWidth;
|
|
|
+ ctx.setLineDash(gridLineOpts.borderDash);
|
|
|
+ ctx.lineDashOffset = gridLineOpts.borderDashOffset;
|
|
|
+ ctx.beginPath();
|
|
|
+ pathRadiusLine(scale, radius, circular, labelCount);
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.stroke();
|
|
|
+ ctx.restore();
|
|
|
+}
|
|
|
+function numberOrZero(param) {
|
|
|
+ return isNumber(param) ? param : 0;
|
|
|
+}
|
|
|
+function createPointLabelContext(parent, index, label) {
|
|
|
+ return Object.assign(Object.create(parent), {
|
|
|
+ label,
|
|
|
+ index,
|
|
|
+ type: 'pointLabel'
|
|
|
+ });
|
|
|
+}
|
|
|
+class RadialLinearScale extends LinearScaleBase {
|
|
|
+ constructor(cfg) {
|
|
|
+ super(cfg);
|
|
|
+ this.xCenter = undefined;
|
|
|
+ this.yCenter = undefined;
|
|
|
+ this.drawingArea = undefined;
|
|
|
+ this._pointLabels = [];
|
|
|
+ this._pointLabelItems = [];
|
|
|
+ }
|
|
|
+ setDimensions() {
|
|
|
+ const me = this;
|
|
|
+ me.width = me.maxWidth;
|
|
|
+ me.height = me.maxHeight;
|
|
|
+ me.paddingTop = getTickBackdropHeight(me.options) / 2;
|
|
|
+ me.xCenter = Math.floor(me.width / 2);
|
|
|
+ me.yCenter = Math.floor((me.height - me.paddingTop) / 2);
|
|
|
+ me.drawingArea = Math.min(me.height - me.paddingTop, me.width) / 2;
|
|
|
+ }
|
|
|
+ determineDataLimits() {
|
|
|
+ const me = this;
|
|
|
+ const {min, max} = me.getMinMax(false);
|
|
|
+ me.min = isNumberFinite(min) && !isNaN(min) ? min : 0;
|
|
|
+ me.max = isNumberFinite(max) && !isNaN(max) ? max : 0;
|
|
|
+ me.handleTickRangeOptions();
|
|
|
+ }
|
|
|
+ computeTickLimit() {
|
|
|
+ return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));
|
|
|
+ }
|
|
|
+ generateTickLabels(ticks) {
|
|
|
+ const me = this;
|
|
|
+ LinearScaleBase.prototype.generateTickLabels.call(me, ticks);
|
|
|
+ me._pointLabels = me.getLabels().map((value, index) => {
|
|
|
+ const label = callback(me.options.pointLabels.callback, [value, index], me);
|
|
|
+ return label || label === 0 ? label : '';
|
|
|
+ });
|
|
|
+ }
|
|
|
+ fit() {
|
|
|
+ const me = this;
|
|
|
+ const opts = me.options;
|
|
|
+ if (opts.display && opts.pointLabels.display) {
|
|
|
+ fitWithPointLabels(me);
|
|
|
+ } else {
|
|
|
+ me.setCenterPoint(0, 0, 0, 0);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ _setReductions(largestPossibleRadius, furthestLimits, furthestAngles) {
|
|
|
+ const me = this;
|
|
|
+ let radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
|
|
|
+ let radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
|
|
|
+ let radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
|
|
|
+ let radiusReductionBottom = -Math.max(furthestLimits.b - (me.height - me.paddingTop), 0) / Math.cos(furthestAngles.b);
|
|
|
+ radiusReductionLeft = numberOrZero(radiusReductionLeft);
|
|
|
+ radiusReductionRight = numberOrZero(radiusReductionRight);
|
|
|
+ radiusReductionTop = numberOrZero(radiusReductionTop);
|
|
|
+ radiusReductionBottom = numberOrZero(radiusReductionBottom);
|
|
|
+ me.drawingArea = Math.max(largestPossibleRadius / 2, Math.min(
|
|
|
+ Math.floor(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
|
|
|
+ Math.floor(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2)));
|
|
|
+ me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
|
|
|
+ }
|
|
|
+ setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) {
|
|
|
+ const me = this;
|
|
|
+ const maxRight = me.width - rightMovement - me.drawingArea;
|
|
|
+ const maxLeft = leftMovement + me.drawingArea;
|
|
|
+ const maxTop = topMovement + me.drawingArea;
|
|
|
+ const maxBottom = (me.height - me.paddingTop) - bottomMovement - me.drawingArea;
|
|
|
+ me.xCenter = Math.floor(((maxLeft + maxRight) / 2) + me.left);
|
|
|
+ me.yCenter = Math.floor(((maxTop + maxBottom) / 2) + me.top + me.paddingTop);
|
|
|
+ }
|
|
|
+ getIndexAngle(index) {
|
|
|
+ const angleMultiplier = TAU / this.getLabels().length;
|
|
|
+ const startAngle = this.options.startAngle || 0;
|
|
|
+ return _normalizeAngle(index * angleMultiplier + toRadians(startAngle));
|
|
|
+ }
|
|
|
+ getDistanceFromCenterForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ if (isNullOrUndef(value)) {
|
|
|
+ return NaN;
|
|
|
+ }
|
|
|
+ const scalingFactor = me.drawingArea / (me.max - me.min);
|
|
|
+ if (me.options.reverse) {
|
|
|
+ return (me.max - value) * scalingFactor;
|
|
|
+ }
|
|
|
+ return (value - me.min) * scalingFactor;
|
|
|
+ }
|
|
|
+ getValueForDistanceFromCenter(distance) {
|
|
|
+ if (isNullOrUndef(distance)) {
|
|
|
+ return NaN;
|
|
|
+ }
|
|
|
+ const me = this;
|
|
|
+ const scaledDistance = distance / (me.drawingArea / (me.max - me.min));
|
|
|
+ return me.options.reverse ? me.max - scaledDistance : me.min + scaledDistance;
|
|
|
+ }
|
|
|
+ getPointLabelContext(index) {
|
|
|
+ const me = this;
|
|
|
+ const pointLabels = me._pointLabels || [];
|
|
|
+ if (index >= 0 && index < pointLabels.length) {
|
|
|
+ const pointLabel = pointLabels[index];
|
|
|
+ return createPointLabelContext(me.getContext(), index, pointLabel);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getPointPosition(index, distanceFromCenter) {
|
|
|
+ const me = this;
|
|
|
+ const angle = me.getIndexAngle(index) - HALF_PI;
|
|
|
+ return {
|
|
|
+ x: Math.cos(angle) * distanceFromCenter + me.xCenter,
|
|
|
+ y: Math.sin(angle) * distanceFromCenter + me.yCenter,
|
|
|
+ angle
|
|
|
+ };
|
|
|
+ }
|
|
|
+ getPointPositionForValue(index, value) {
|
|
|
+ return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
|
|
|
+ }
|
|
|
+ getBasePosition(index) {
|
|
|
+ return this.getPointPositionForValue(index || 0, this.getBaseValue());
|
|
|
+ }
|
|
|
+ getPointLabelPosition(index) {
|
|
|
+ const {left, top, right, bottom} = this._pointLabelItems[index];
|
|
|
+ return {
|
|
|
+ left,
|
|
|
+ top,
|
|
|
+ right,
|
|
|
+ bottom,
|
|
|
+ };
|
|
|
+ }
|
|
|
+ drawBackground() {
|
|
|
+ const me = this;
|
|
|
+ const {backgroundColor, grid: {circular}} = me.options;
|
|
|
+ if (backgroundColor) {
|
|
|
+ const ctx = me.ctx;
|
|
|
+ ctx.save();
|
|
|
+ ctx.beginPath();
|
|
|
+ pathRadiusLine(me, me.getDistanceFromCenterForValue(me._endValue), circular, me.getLabels().length);
|
|
|
+ ctx.closePath();
|
|
|
+ ctx.fillStyle = backgroundColor;
|
|
|
+ ctx.fill();
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawGrid() {
|
|
|
+ const me = this;
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const opts = me.options;
|
|
|
+ const {angleLines, grid} = opts;
|
|
|
+ const labelCount = me.getLabels().length;
|
|
|
+ let i, offset, position;
|
|
|
+ if (opts.pointLabels.display) {
|
|
|
+ drawPointLabels(me, labelCount);
|
|
|
+ }
|
|
|
+ if (grid.display) {
|
|
|
+ me.ticks.forEach((tick, index) => {
|
|
|
+ if (index !== 0) {
|
|
|
+ offset = me.getDistanceFromCenterForValue(tick.value);
|
|
|
+ const optsAtIndex = grid.setContext(me.getContext(index - 1));
|
|
|
+ drawRadiusLine(me, optsAtIndex, offset, labelCount);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ if (angleLines.display) {
|
|
|
+ ctx.save();
|
|
|
+ for (i = me.getLabels().length - 1; i >= 0; i--) {
|
|
|
+ const optsAtIndex = angleLines.setContext(me.getPointLabelContext(i));
|
|
|
+ const {color, lineWidth} = optsAtIndex;
|
|
|
+ if (!lineWidth || !color) {
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ ctx.lineWidth = lineWidth;
|
|
|
+ ctx.strokeStyle = color;
|
|
|
+ ctx.setLineDash(optsAtIndex.borderDash);
|
|
|
+ ctx.lineDashOffset = optsAtIndex.borderDashOffset;
|
|
|
+ offset = me.getDistanceFromCenterForValue(opts.ticks.reverse ? me.min : me.max);
|
|
|
+ position = me.getPointPosition(i, offset);
|
|
|
+ ctx.beginPath();
|
|
|
+ ctx.moveTo(me.xCenter, me.yCenter);
|
|
|
+ ctx.lineTo(position.x, position.y);
|
|
|
+ ctx.stroke();
|
|
|
+ }
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ drawBorder() {}
|
|
|
+ drawLabels() {
|
|
|
+ const me = this;
|
|
|
+ const ctx = me.ctx;
|
|
|
+ const opts = me.options;
|
|
|
+ const tickOpts = opts.ticks;
|
|
|
+ if (!tickOpts.display) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const startAngle = me.getIndexAngle(0);
|
|
|
+ let offset, width;
|
|
|
+ ctx.save();
|
|
|
+ ctx.translate(me.xCenter, me.yCenter);
|
|
|
+ ctx.rotate(startAngle);
|
|
|
+ ctx.textAlign = 'center';
|
|
|
+ ctx.textBaseline = 'middle';
|
|
|
+ me.ticks.forEach((tick, index) => {
|
|
|
+ if (index === 0 && !opts.reverse) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ const optsAtIndex = tickOpts.setContext(me.getContext(index));
|
|
|
+ const tickFont = toFont(optsAtIndex.font);
|
|
|
+ offset = me.getDistanceFromCenterForValue(me.ticks[index].value);
|
|
|
+ if (optsAtIndex.showLabelBackdrop) {
|
|
|
+ ctx.font = tickFont.string;
|
|
|
+ width = ctx.measureText(tick.label).width;
|
|
|
+ ctx.fillStyle = optsAtIndex.backdropColor;
|
|
|
+ const padding = toPadding(optsAtIndex.backdropPadding);
|
|
|
+ ctx.fillRect(
|
|
|
+ -width / 2 - padding.left,
|
|
|
+ -offset - tickFont.size / 2 - padding.top,
|
|
|
+ width + padding.width,
|
|
|
+ tickFont.size + padding.height
|
|
|
+ );
|
|
|
+ }
|
|
|
+ renderText(ctx, tick.label, 0, -offset, tickFont, {
|
|
|
+ color: optsAtIndex.color,
|
|
|
+ });
|
|
|
+ });
|
|
|
+ ctx.restore();
|
|
|
+ }
|
|
|
+ drawTitle() {}
|
|
|
+}
|
|
|
+RadialLinearScale.id = 'radialLinear';
|
|
|
+RadialLinearScale.defaults = {
|
|
|
+ display: true,
|
|
|
+ animate: true,
|
|
|
+ position: 'chartArea',
|
|
|
+ angleLines: {
|
|
|
+ display: true,
|
|
|
+ lineWidth: 1,
|
|
|
+ borderDash: [],
|
|
|
+ borderDashOffset: 0.0
|
|
|
+ },
|
|
|
+ grid: {
|
|
|
+ circular: false
|
|
|
+ },
|
|
|
+ startAngle: 0,
|
|
|
+ ticks: {
|
|
|
+ showLabelBackdrop: true,
|
|
|
+ callback: Ticks.formatters.numeric
|
|
|
+ },
|
|
|
+ pointLabels: {
|
|
|
+ backdropColor: undefined,
|
|
|
+ backdropPadding: 2,
|
|
|
+ display: true,
|
|
|
+ font: {
|
|
|
+ size: 10
|
|
|
+ },
|
|
|
+ callback(label) {
|
|
|
+ return label;
|
|
|
+ },
|
|
|
+ padding: 5
|
|
|
+ }
|
|
|
+};
|
|
|
+RadialLinearScale.defaultRoutes = {
|
|
|
+ 'angleLines.color': 'borderColor',
|
|
|
+ 'pointLabels.color': 'color',
|
|
|
+ 'ticks.color': 'color'
|
|
|
+};
|
|
|
+RadialLinearScale.descriptors = {
|
|
|
+ angleLines: {
|
|
|
+ _fallback: 'grid'
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+const INTERVALS = {
|
|
|
+ millisecond: {common: true, size: 1, steps: 1000},
|
|
|
+ second: {common: true, size: 1000, steps: 60},
|
|
|
+ minute: {common: true, size: 60000, steps: 60},
|
|
|
+ hour: {common: true, size: 3600000, steps: 24},
|
|
|
+ day: {common: true, size: 86400000, steps: 30},
|
|
|
+ week: {common: false, size: 604800000, steps: 4},
|
|
|
+ month: {common: true, size: 2.628e9, steps: 12},
|
|
|
+ quarter: {common: false, size: 7.884e9, steps: 4},
|
|
|
+ year: {common: true, size: 3.154e10}
|
|
|
+};
|
|
|
+const UNITS = (Object.keys(INTERVALS));
|
|
|
+function sorter(a, b) {
|
|
|
+ return a - b;
|
|
|
+}
|
|
|
+function parse(scale, input) {
|
|
|
+ if (isNullOrUndef(input)) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ const adapter = scale._adapter;
|
|
|
+ const {parser, round, isoWeekday} = scale._parseOpts;
|
|
|
+ let value = input;
|
|
|
+ if (typeof parser === 'function') {
|
|
|
+ value = parser(value);
|
|
|
+ }
|
|
|
+ if (!isNumberFinite(value)) {
|
|
|
+ value = typeof parser === 'string'
|
|
|
+ ? adapter.parse(value, parser)
|
|
|
+ : adapter.parse(value);
|
|
|
+ }
|
|
|
+ if (value === null) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ if (round) {
|
|
|
+ value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true)
|
|
|
+ ? adapter.startOf(value, 'isoWeek', isoWeekday)
|
|
|
+ : adapter.startOf(value, round);
|
|
|
+ }
|
|
|
+ return +value;
|
|
|
+}
|
|
|
+function determineUnitForAutoTicks(minUnit, min, max, capacity) {
|
|
|
+ const ilen = UNITS.length;
|
|
|
+ for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
|
|
|
+ const interval = INTERVALS[UNITS[i]];
|
|
|
+ const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER;
|
|
|
+ if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
|
|
|
+ return UNITS[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return UNITS[ilen - 1];
|
|
|
+}
|
|
|
+function determineUnitForFormatting(scale, numTicks, minUnit, min, max) {
|
|
|
+ for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) {
|
|
|
+ const unit = UNITS[i];
|
|
|
+ if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) {
|
|
|
+ return unit;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
|
|
|
+}
|
|
|
+function determineMajorUnit(unit) {
|
|
|
+ for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
|
|
|
+ if (INTERVALS[UNITS[i]].common) {
|
|
|
+ return UNITS[i];
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+function addTick(ticks, time, timestamps) {
|
|
|
+ if (!timestamps) {
|
|
|
+ ticks[time] = true;
|
|
|
+ } else if (timestamps.length) {
|
|
|
+ const {lo, hi} = _lookup(timestamps, time);
|
|
|
+ const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi];
|
|
|
+ ticks[timestamp] = true;
|
|
|
+ }
|
|
|
+}
|
|
|
+function setMajorTicks(scale, ticks, map, majorUnit) {
|
|
|
+ const adapter = scale._adapter;
|
|
|
+ const first = +adapter.startOf(ticks[0].value, majorUnit);
|
|
|
+ const last = ticks[ticks.length - 1].value;
|
|
|
+ let major, index;
|
|
|
+ for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) {
|
|
|
+ index = map[major];
|
|
|
+ if (index >= 0) {
|
|
|
+ ticks[index].major = true;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return ticks;
|
|
|
+}
|
|
|
+function ticksFromTimestamps(scale, values, majorUnit) {
|
|
|
+ const ticks = [];
|
|
|
+ const map = {};
|
|
|
+ const ilen = values.length;
|
|
|
+ let i, value;
|
|
|
+ for (i = 0; i < ilen; ++i) {
|
|
|
+ value = values[i];
|
|
|
+ map[value] = i;
|
|
|
+ ticks.push({
|
|
|
+ value,
|
|
|
+ major: false
|
|
|
+ });
|
|
|
+ }
|
|
|
+ return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit);
|
|
|
+}
|
|
|
+class TimeScale extends Scale {
|
|
|
+ constructor(props) {
|
|
|
+ super(props);
|
|
|
+ this._cache = {
|
|
|
+ data: [],
|
|
|
+ labels: [],
|
|
|
+ all: []
|
|
|
+ };
|
|
|
+ this._unit = 'day';
|
|
|
+ this._majorUnit = undefined;
|
|
|
+ this._offsets = {};
|
|
|
+ this._normalized = false;
|
|
|
+ this._parseOpts = undefined;
|
|
|
+ }
|
|
|
+ init(scaleOpts, opts) {
|
|
|
+ const time = scaleOpts.time || (scaleOpts.time = {});
|
|
|
+ const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date);
|
|
|
+ mergeIf(time.displayFormats, adapter.formats());
|
|
|
+ this._parseOpts = {
|
|
|
+ parser: time.parser,
|
|
|
+ round: time.round,
|
|
|
+ isoWeekday: time.isoWeekday
|
|
|
+ };
|
|
|
+ super.init(scaleOpts);
|
|
|
+ this._normalized = opts.normalized;
|
|
|
+ }
|
|
|
+ parse(raw, index) {
|
|
|
+ if (raw === undefined) {
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ return parse(this, raw);
|
|
|
+ }
|
|
|
+ beforeLayout() {
|
|
|
+ super.beforeLayout();
|
|
|
+ this._cache = {
|
|
|
+ data: [],
|
|
|
+ labels: [],
|
|
|
+ all: []
|
|
|
+ };
|
|
|
+ }
|
|
|
+ determineDataLimits() {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const adapter = me._adapter;
|
|
|
+ const unit = options.time.unit || 'day';
|
|
|
+ let {min, max, minDefined, maxDefined} = me.getUserBounds();
|
|
|
+ function _applyBounds(bounds) {
|
|
|
+ if (!minDefined && !isNaN(bounds.min)) {
|
|
|
+ min = Math.min(min, bounds.min);
|
|
|
+ }
|
|
|
+ if (!maxDefined && !isNaN(bounds.max)) {
|
|
|
+ max = Math.max(max, bounds.max);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (!minDefined || !maxDefined) {
|
|
|
+ _applyBounds(me._getLabelBounds());
|
|
|
+ if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') {
|
|
|
+ _applyBounds(me.getMinMax(false));
|
|
|
+ }
|
|
|
+ }
|
|
|
+ min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit);
|
|
|
+ max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1;
|
|
|
+ me.min = Math.min(min, max - 1);
|
|
|
+ me.max = Math.max(min + 1, max);
|
|
|
+ }
|
|
|
+ _getLabelBounds() {
|
|
|
+ const arr = this.getLabelTimestamps();
|
|
|
+ let min = Number.POSITIVE_INFINITY;
|
|
|
+ let max = Number.NEGATIVE_INFINITY;
|
|
|
+ if (arr.length) {
|
|
|
+ min = arr[0];
|
|
|
+ max = arr[arr.length - 1];
|
|
|
+ }
|
|
|
+ return {min, max};
|
|
|
+ }
|
|
|
+ buildTicks() {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const timeOpts = options.time;
|
|
|
+ const tickOpts = options.ticks;
|
|
|
+ const timestamps = tickOpts.source === 'labels' ? me.getLabelTimestamps() : me._generate();
|
|
|
+ if (options.bounds === 'ticks' && timestamps.length) {
|
|
|
+ me.min = me._userMin || timestamps[0];
|
|
|
+ me.max = me._userMax || timestamps[timestamps.length - 1];
|
|
|
+ }
|
|
|
+ const min = me.min;
|
|
|
+ const max = me.max;
|
|
|
+ const ticks = _filterBetween(timestamps, min, max);
|
|
|
+ me._unit = timeOpts.unit || (tickOpts.autoSkip
|
|
|
+ ? determineUnitForAutoTicks(timeOpts.minUnit, me.min, me.max, me._getLabelCapacity(min))
|
|
|
+ : determineUnitForFormatting(me, ticks.length, timeOpts.minUnit, me.min, me.max));
|
|
|
+ me._majorUnit = !tickOpts.major.enabled || me._unit === 'year' ? undefined
|
|
|
+ : determineMajorUnit(me._unit);
|
|
|
+ me.initOffsets(timestamps);
|
|
|
+ if (options.reverse) {
|
|
|
+ ticks.reverse();
|
|
|
+ }
|
|
|
+ return ticksFromTimestamps(me, ticks, me._majorUnit);
|
|
|
+ }
|
|
|
+ initOffsets(timestamps) {
|
|
|
+ const me = this;
|
|
|
+ let start = 0;
|
|
|
+ let end = 0;
|
|
|
+ let first, last;
|
|
|
+ if (me.options.offset && timestamps.length) {
|
|
|
+ first = me.getDecimalForValue(timestamps[0]);
|
|
|
+ if (timestamps.length === 1) {
|
|
|
+ start = 1 - first;
|
|
|
+ } else {
|
|
|
+ start = (me.getDecimalForValue(timestamps[1]) - first) / 2;
|
|
|
+ }
|
|
|
+ last = me.getDecimalForValue(timestamps[timestamps.length - 1]);
|
|
|
+ if (timestamps.length === 1) {
|
|
|
+ end = last;
|
|
|
+ } else {
|
|
|
+ end = (last - me.getDecimalForValue(timestamps[timestamps.length - 2])) / 2;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ const limit = timestamps.length < 3 ? 0.5 : 0.25;
|
|
|
+ start = _limitValue(start, 0, limit);
|
|
|
+ end = _limitValue(end, 0, limit);
|
|
|
+ me._offsets = {start, end, factor: 1 / (start + 1 + end)};
|
|
|
+ }
|
|
|
+ _generate() {
|
|
|
+ const me = this;
|
|
|
+ const adapter = me._adapter;
|
|
|
+ const min = me.min;
|
|
|
+ const max = me.max;
|
|
|
+ const options = me.options;
|
|
|
+ const timeOpts = options.time;
|
|
|
+ const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, me._getLabelCapacity(min));
|
|
|
+ const stepSize = valueOrDefault(timeOpts.stepSize, 1);
|
|
|
+ const weekday = minor === 'week' ? timeOpts.isoWeekday : false;
|
|
|
+ const hasWeekday = isNumber(weekday) || weekday === true;
|
|
|
+ const ticks = {};
|
|
|
+ let first = min;
|
|
|
+ let time, count;
|
|
|
+ if (hasWeekday) {
|
|
|
+ first = +adapter.startOf(first, 'isoWeek', weekday);
|
|
|
+ }
|
|
|
+ first = +adapter.startOf(first, hasWeekday ? 'day' : minor);
|
|
|
+ if (adapter.diff(max, min, minor) > 100000 * stepSize) {
|
|
|
+ throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor);
|
|
|
+ }
|
|
|
+ const timestamps = options.ticks.source === 'data' && me.getDataTimestamps();
|
|
|
+ for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) {
|
|
|
+ addTick(ticks, time, timestamps);
|
|
|
+ }
|
|
|
+ if (time === max || options.bounds === 'ticks' || count === 1) {
|
|
|
+ addTick(ticks, time, timestamps);
|
|
|
+ }
|
|
|
+ return Object.keys(ticks).sort((a, b) => a - b).map(x => +x);
|
|
|
+ }
|
|
|
+ getLabelForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ const adapter = me._adapter;
|
|
|
+ const timeOpts = me.options.time;
|
|
|
+ if (timeOpts.tooltipFormat) {
|
|
|
+ return adapter.format(value, timeOpts.tooltipFormat);
|
|
|
+ }
|
|
|
+ return adapter.format(value, timeOpts.displayFormats.datetime);
|
|
|
+ }
|
|
|
+ _tickFormatFunction(time, index, ticks, format) {
|
|
|
+ const me = this;
|
|
|
+ const options = me.options;
|
|
|
+ const formats = options.time.displayFormats;
|
|
|
+ const unit = me._unit;
|
|
|
+ const majorUnit = me._majorUnit;
|
|
|
+ const minorFormat = unit && formats[unit];
|
|
|
+ const majorFormat = majorUnit && formats[majorUnit];
|
|
|
+ const tick = ticks[index];
|
|
|
+ const major = majorUnit && majorFormat && tick && tick.major;
|
|
|
+ const label = me._adapter.format(time, format || (major ? majorFormat : minorFormat));
|
|
|
+ const formatter = options.ticks.callback;
|
|
|
+ return formatter ? callback(formatter, [label, index, ticks], me) : label;
|
|
|
+ }
|
|
|
+ generateTickLabels(ticks) {
|
|
|
+ let i, ilen, tick;
|
|
|
+ for (i = 0, ilen = ticks.length; i < ilen; ++i) {
|
|
|
+ tick = ticks[i];
|
|
|
+ tick.label = this._tickFormatFunction(tick.value, i, ticks);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ getDecimalForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ return value === null ? NaN : (value - me.min) / (me.max - me.min);
|
|
|
+ }
|
|
|
+ getPixelForValue(value) {
|
|
|
+ const me = this;
|
|
|
+ const offsets = me._offsets;
|
|
|
+ const pos = me.getDecimalForValue(value);
|
|
|
+ return me.getPixelForDecimal((offsets.start + pos) * offsets.factor);
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {
|
|
|
+ const me = this;
|
|
|
+ const offsets = me._offsets;
|
|
|
+ const pos = me.getDecimalForPixel(pixel) / offsets.factor - offsets.end;
|
|
|
+ return me.min + pos * (me.max - me.min);
|
|
|
+ }
|
|
|
+ _getLabelSize(label) {
|
|
|
+ const me = this;
|
|
|
+ const ticksOpts = me.options.ticks;
|
|
|
+ const tickLabelWidth = me.ctx.measureText(label).width;
|
|
|
+ const angle = toRadians(me.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);
|
|
|
+ const cosRotation = Math.cos(angle);
|
|
|
+ const sinRotation = Math.sin(angle);
|
|
|
+ const tickFontSize = me._resolveTickFontOptions(0).size;
|
|
|
+ return {
|
|
|
+ w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation),
|
|
|
+ h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation)
|
|
|
+ };
|
|
|
+ }
|
|
|
+ _getLabelCapacity(exampleTime) {
|
|
|
+ const me = this;
|
|
|
+ const timeOpts = me.options.time;
|
|
|
+ const displayFormats = timeOpts.displayFormats;
|
|
|
+ const format = displayFormats[timeOpts.unit] || displayFormats.millisecond;
|
|
|
+ const exampleLabel = me._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(me, [exampleTime], me._majorUnit), format);
|
|
|
+ const size = me._getLabelSize(exampleLabel);
|
|
|
+ const capacity = Math.floor(me.isHorizontal() ? me.width / size.w : me.height / size.h) - 1;
|
|
|
+ return capacity > 0 ? capacity : 1;
|
|
|
+ }
|
|
|
+ getDataTimestamps() {
|
|
|
+ const me = this;
|
|
|
+ let timestamps = me._cache.data || [];
|
|
|
+ let i, ilen;
|
|
|
+ if (timestamps.length) {
|
|
|
+ return timestamps;
|
|
|
+ }
|
|
|
+ const metas = me.getMatchingVisibleMetas();
|
|
|
+ if (me._normalized && metas.length) {
|
|
|
+ return (me._cache.data = metas[0].controller.getAllParsedValues(me));
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = metas.length; i < ilen; ++i) {
|
|
|
+ timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(me));
|
|
|
+ }
|
|
|
+ return (me._cache.data = me.normalize(timestamps));
|
|
|
+ }
|
|
|
+ getLabelTimestamps() {
|
|
|
+ const me = this;
|
|
|
+ const timestamps = me._cache.labels || [];
|
|
|
+ let i, ilen;
|
|
|
+ if (timestamps.length) {
|
|
|
+ return timestamps;
|
|
|
+ }
|
|
|
+ const labels = me.getLabels();
|
|
|
+ for (i = 0, ilen = labels.length; i < ilen; ++i) {
|
|
|
+ timestamps.push(parse(me, labels[i]));
|
|
|
+ }
|
|
|
+ return (me._cache.labels = me._normalized ? timestamps : me.normalize(timestamps));
|
|
|
+ }
|
|
|
+ normalize(values) {
|
|
|
+ return _arrayUnique(values.sort(sorter));
|
|
|
+ }
|
|
|
+}
|
|
|
+TimeScale.id = 'time';
|
|
|
+TimeScale.defaults = {
|
|
|
+ bounds: 'data',
|
|
|
+ adapters: {},
|
|
|
+ time: {
|
|
|
+ parser: false,
|
|
|
+ unit: false,
|
|
|
+ round: false,
|
|
|
+ isoWeekday: false,
|
|
|
+ minUnit: 'millisecond',
|
|
|
+ displayFormats: {}
|
|
|
+ },
|
|
|
+ ticks: {
|
|
|
+ source: 'auto',
|
|
|
+ major: {
|
|
|
+ enabled: false
|
|
|
+ }
|
|
|
+ }
|
|
|
+};
|
|
|
+
|
|
|
+function interpolate(table, val, reverse) {
|
|
|
+ let lo = 0;
|
|
|
+ let hi = table.length - 1;
|
|
|
+ let prevSource, nextSource, prevTarget, nextTarget;
|
|
|
+ if (reverse) {
|
|
|
+ if (val >= table[lo].pos && val <= table[hi].pos) {
|
|
|
+ ({lo, hi} = _lookupByKey(table, 'pos', val));
|
|
|
+ }
|
|
|
+ ({pos: prevSource, time: prevTarget} = table[lo]);
|
|
|
+ ({pos: nextSource, time: nextTarget} = table[hi]);
|
|
|
+ } else {
|
|
|
+ if (val >= table[lo].time && val <= table[hi].time) {
|
|
|
+ ({lo, hi} = _lookupByKey(table, 'time', val));
|
|
|
+ }
|
|
|
+ ({time: prevSource, pos: prevTarget} = table[lo]);
|
|
|
+ ({time: nextSource, pos: nextTarget} = table[hi]);
|
|
|
+ }
|
|
|
+ const span = nextSource - prevSource;
|
|
|
+ return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget;
|
|
|
+}
|
|
|
+class TimeSeriesScale extends TimeScale {
|
|
|
+ constructor(props) {
|
|
|
+ super(props);
|
|
|
+ this._table = [];
|
|
|
+ this._minPos = undefined;
|
|
|
+ this._tableRange = undefined;
|
|
|
+ }
|
|
|
+ initOffsets() {
|
|
|
+ const me = this;
|
|
|
+ const timestamps = me._getTimestampsForTable();
|
|
|
+ const table = me._table = me.buildLookupTable(timestamps);
|
|
|
+ me._minPos = interpolate(table, me.min);
|
|
|
+ me._tableRange = interpolate(table, me.max) - me._minPos;
|
|
|
+ super.initOffsets(timestamps);
|
|
|
+ }
|
|
|
+ buildLookupTable(timestamps) {
|
|
|
+ const {min, max} = this;
|
|
|
+ const items = [];
|
|
|
+ const table = [];
|
|
|
+ let i, ilen, prev, curr, next;
|
|
|
+ for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
|
|
|
+ curr = timestamps[i];
|
|
|
+ if (curr >= min && curr <= max) {
|
|
|
+ items.push(curr);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (items.length < 2) {
|
|
|
+ return [
|
|
|
+ {time: min, pos: 0},
|
|
|
+ {time: max, pos: 1}
|
|
|
+ ];
|
|
|
+ }
|
|
|
+ for (i = 0, ilen = items.length; i < ilen; ++i) {
|
|
|
+ next = items[i + 1];
|
|
|
+ prev = items[i - 1];
|
|
|
+ curr = items[i];
|
|
|
+ if (Math.round((next + prev) / 2) !== curr) {
|
|
|
+ table.push({time: curr, pos: i / (ilen - 1)});
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return table;
|
|
|
+ }
|
|
|
+ _getTimestampsForTable() {
|
|
|
+ const me = this;
|
|
|
+ let timestamps = me._cache.all || [];
|
|
|
+ if (timestamps.length) {
|
|
|
+ return timestamps;
|
|
|
+ }
|
|
|
+ const data = me.getDataTimestamps();
|
|
|
+ const label = me.getLabelTimestamps();
|
|
|
+ if (data.length && label.length) {
|
|
|
+ timestamps = me.normalize(data.concat(label));
|
|
|
+ } else {
|
|
|
+ timestamps = data.length ? data : label;
|
|
|
+ }
|
|
|
+ timestamps = me._cache.all = timestamps;
|
|
|
+ return timestamps;
|
|
|
+ }
|
|
|
+ getDecimalForValue(value) {
|
|
|
+ return (interpolate(this._table, value) - this._minPos) / this._tableRange;
|
|
|
+ }
|
|
|
+ getValueForPixel(pixel) {
|
|
|
+ const me = this;
|
|
|
+ const offsets = me._offsets;
|
|
|
+ const decimal = me.getDecimalForPixel(pixel) / offsets.factor - offsets.end;
|
|
|
+ return interpolate(me._table, decimal * me._tableRange + me._minPos, true);
|
|
|
+ }
|
|
|
+}
|
|
|
+TimeSeriesScale.id = 'timeseries';
|
|
|
+TimeSeriesScale.defaults = TimeScale.defaults;
|
|
|
+
|
|
|
+var scales = /*#__PURE__*/Object.freeze({
|
|
|
+__proto__: null,
|
|
|
+CategoryScale: CategoryScale,
|
|
|
+LinearScale: LinearScale,
|
|
|
+LogarithmicScale: LogarithmicScale,
|
|
|
+RadialLinearScale: RadialLinearScale,
|
|
|
+TimeScale: TimeScale,
|
|
|
+TimeSeriesScale: TimeSeriesScale
|
|
|
+});
|
|
|
+
|
|
|
+Chart.register(controllers, scales, elements, plugins);
|
|
|
+Chart.helpers = {...helpers};
|
|
|
+Chart._adapters = _adapters;
|
|
|
+Chart.Animation = Animation;
|
|
|
+Chart.Animations = Animations;
|
|
|
+Chart.animator = animator;
|
|
|
+Chart.controllers = registry.controllers.items;
|
|
|
+Chart.DatasetController = DatasetController;
|
|
|
+Chart.Element = Element;
|
|
|
+Chart.elements = elements;
|
|
|
+Chart.Interaction = Interaction;
|
|
|
+Chart.layouts = layouts;
|
|
|
+Chart.platforms = platforms;
|
|
|
+Chart.Scale = Scale;
|
|
|
+Chart.Ticks = Ticks;
|
|
|
+Object.assign(Chart, controllers, scales, elements, plugins, platforms);
|
|
|
+Chart.Chart = Chart;
|
|
|
+if (typeof window !== 'undefined') {
|
|
|
+ window.Chart = Chart;
|
|
|
+}
|
|
|
+
|
|
|
+return Chart;
|
|
|
+
|
|
|
+})));
|
王刚