diff --git a/layerindex/static/js/Chart.js b/layerindex/static/js/Chart.js index 7c78902..e8d937c 100644 --- a/layerindex/static/js/Chart.js +++ b/layerindex/static/js/Chart.js @@ -1,19 +1,1388 @@ /*! - * Chart.js - * http://chartjs.org/ - * Version: 2.7.2 - * - * Copyright 2018 Chart.js Contributors - * Released under the MIT license - * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md + * Chart.js v2.9.3 + * https://www.chartjs.org + * (c) 2019 Chart.js Contributors + * Released under the MIT License */ -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 1) { + h -= 1; + } + } + + return [ + h * 360, + s * 100, + v * 100 + ]; +}; + +convert.rgb.hwb = function (rgb) { + var r = rgb[0]; + var g = rgb[1]; + var b = rgb[2]; + var h = convert.rgb.hsl(rgb)[0]; + var w = 1 / 255 * Math.min(r, Math.min(g, b)); + + b = 1 - 1 / 255 * Math.max(r, Math.max(g, b)); + + return [h, w * 100, b * 100]; +}; + +convert.rgb.cmyk = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var c; + var m; + var y; + var k; + + k = Math.min(1 - r, 1 - g, 1 - b); + c = (1 - r - k) / (1 - k) || 0; + m = (1 - g - k) / (1 - k) || 0; + y = (1 - b - k) / (1 - k) || 0; + + return [c * 100, m * 100, y * 100, k * 100]; +}; + +/** + * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance + * */ +function comparativeDistance(x, y) { + return ( + Math.pow(x[0] - y[0], 2) + + Math.pow(x[1] - y[1], 2) + + Math.pow(x[2] - y[2], 2) + ); +} + +convert.rgb.keyword = function (rgb) { + var reversed = reverseKeywords[rgb]; + if (reversed) { + return reversed; + } + + var currentClosestDistance = Infinity; + var currentClosestKeyword; + + for (var keyword in colorName) { + if (colorName.hasOwnProperty(keyword)) { + var value = colorName[keyword]; + + // Compute comparative distance + var distance = comparativeDistance(rgb, value); + + // Check if its less, if so set as closest + if (distance < currentClosestDistance) { + currentClosestDistance = distance; + currentClosestKeyword = keyword; + } + } + } + + return currentClosestKeyword; +}; + +convert.keyword.rgb = function (keyword) { + return colorName[keyword]; +}; + +convert.rgb.xyz = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + + // assume sRGB + r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92); + g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92); + b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92); + + var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805); + var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722); + var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505); + + return [x * 100, y * 100, z * 100]; +}; + +convert.rgb.lab = function (rgb) { + var xyz = convert.rgb.xyz(rgb); + var x = xyz[0]; + var y = xyz[1]; + var z = xyz[2]; + var l; + var a; + var b; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116); + + l = (116 * y) - 16; + a = 500 * (x - y); + b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.hsl.rgb = function (hsl) { + var h = hsl[0] / 360; + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var t1; + var t2; + var t3; + var rgb; + var val; + + if (s === 0) { + val = l * 255; + return [val, val, val]; + } + + if (l < 0.5) { + t2 = l * (1 + s); + } else { + t2 = l + s - l * s; + } + + t1 = 2 * l - t2; + + rgb = [0, 0, 0]; + for (var i = 0; i < 3; i++) { + t3 = h + 1 / 3 * -(i - 1); + if (t3 < 0) { + t3++; + } + if (t3 > 1) { + t3--; + } + + if (6 * t3 < 1) { + val = t1 + (t2 - t1) * 6 * t3; + } else if (2 * t3 < 1) { + val = t2; + } else if (3 * t3 < 2) { + val = t1 + (t2 - t1) * (2 / 3 - t3) * 6; + } else { + val = t1; + } + + rgb[i] = val * 255; + } + + return rgb; +}; + +convert.hsl.hsv = function (hsl) { + var h = hsl[0]; + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var smin = s; + var lmin = Math.max(l, 0.01); + var sv; + var v; + + l *= 2; + s *= (l <= 1) ? l : 2 - l; + smin *= lmin <= 1 ? lmin : 2 - lmin; + v = (l + s) / 2; + sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s); + + return [h, sv * 100, v * 100]; +}; + +convert.hsv.rgb = function (hsv) { + var h = hsv[0] / 60; + var s = hsv[1] / 100; + var v = hsv[2] / 100; + var hi = Math.floor(h) % 6; + + var f = h - Math.floor(h); + var p = 255 * v * (1 - s); + var q = 255 * v * (1 - (s * f)); + var t = 255 * v * (1 - (s * (1 - f))); + v *= 255; + + switch (hi) { + case 0: + return [v, t, p]; + case 1: + return [q, v, p]; + case 2: + return [p, v, t]; + case 3: + return [p, q, v]; + case 4: + return [t, p, v]; + case 5: + return [v, p, q]; + } +}; + +convert.hsv.hsl = function (hsv) { + var h = hsv[0]; + var s = hsv[1] / 100; + var v = hsv[2] / 100; + var vmin = Math.max(v, 0.01); + var lmin; + var sl; + var l; + + l = (2 - s) * v; + lmin = (2 - s) * vmin; + sl = s * vmin; + sl /= (lmin <= 1) ? lmin : 2 - lmin; + sl = sl || 0; + l /= 2; + + return [h, sl * 100, l * 100]; +}; + +// http://dev.w3.org/csswg/css-color/#hwb-to-rgb +convert.hwb.rgb = function (hwb) { + var h = hwb[0] / 360; + var wh = hwb[1] / 100; + var bl = hwb[2] / 100; + var ratio = wh + bl; + var i; + var v; + var f; + var n; + + // wh + bl cant be > 1 + if (ratio > 1) { + wh /= ratio; + bl /= ratio; + } + + i = Math.floor(6 * h); + v = 1 - bl; + f = 6 * h - i; + + if ((i & 0x01) !== 0) { + f = 1 - f; + } + + n = wh + f * (v - wh); // linear interpolation + + var r; + var g; + var b; + switch (i) { + default: + case 6: + case 0: r = v; g = n; b = wh; break; + case 1: r = n; g = v; b = wh; break; + case 2: r = wh; g = v; b = n; break; + case 3: r = wh; g = n; b = v; break; + case 4: r = n; g = wh; b = v; break; + case 5: r = v; g = wh; b = n; break; + } + + return [r * 255, g * 255, b * 255]; +}; + +convert.cmyk.rgb = function (cmyk) { + var c = cmyk[0] / 100; + var m = cmyk[1] / 100; + var y = cmyk[2] / 100; + var k = cmyk[3] / 100; + var r; + var g; + var b; + + r = 1 - Math.min(1, c * (1 - k) + k); + g = 1 - Math.min(1, m * (1 - k) + k); + b = 1 - Math.min(1, y * (1 - k) + k); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.rgb = function (xyz) { + var x = xyz[0] / 100; + var y = xyz[1] / 100; + var z = xyz[2] / 100; + var r; + var g; + var b; + + r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986); + g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415); + b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570); + + // assume sRGB + r = r > 0.0031308 + ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055) + : r * 12.92; + + g = g > 0.0031308 + ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055) + : g * 12.92; + + b = b > 0.0031308 + ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055) + : b * 12.92; + + r = Math.min(Math.max(0, r), 1); + g = Math.min(Math.max(0, g), 1); + b = Math.min(Math.max(0, b), 1); + + return [r * 255, g * 255, b * 255]; +}; + +convert.xyz.lab = function (xyz) { + var x = xyz[0]; + var y = xyz[1]; + var z = xyz[2]; + var l; + var a; + var b; + + x /= 95.047; + y /= 100; + z /= 108.883; + + x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116); + y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116); + z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116); + + l = (116 * y) - 16; + a = 500 * (x - y); + b = 200 * (y - z); + + return [l, a, b]; +}; + +convert.lab.xyz = function (lab) { + var l = lab[0]; + var a = lab[1]; + var b = lab[2]; + var x; + var y; + var z; + + y = (l + 16) / 116; + x = a / 500 + y; + z = y - b / 200; + + var y2 = Math.pow(y, 3); + var x2 = Math.pow(x, 3); + var z2 = Math.pow(z, 3); + y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787; + x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787; + z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787; + + x *= 95.047; + y *= 100; + z *= 108.883; + + return [x, y, z]; +}; + +convert.lab.lch = function (lab) { + var l = lab[0]; + var a = lab[1]; + var b = lab[2]; + var hr; + var h; + var c; + + hr = Math.atan2(b, a); + h = hr * 360 / 2 / Math.PI; + + if (h < 0) { + h += 360; + } + + c = Math.sqrt(a * a + b * b); + + return [l, c, h]; +}; + +convert.lch.lab = function (lch) { + var l = lch[0]; + var c = lch[1]; + var h = lch[2]; + var a; + var b; + var hr; + + hr = h / 360 * 2 * Math.PI; + a = c * Math.cos(hr); + b = c * Math.sin(hr); + + return [l, a, b]; +}; + +convert.rgb.ansi16 = function (args) { + var r = args[0]; + var g = args[1]; + var b = args[2]; + var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization + + value = Math.round(value / 50); + + if (value === 0) { + return 30; + } + + var ansi = 30 + + ((Math.round(b / 255) << 2) + | (Math.round(g / 255) << 1) + | Math.round(r / 255)); + + if (value === 2) { + ansi += 60; + } + + return ansi; +}; + +convert.hsv.ansi16 = function (args) { + // optimization here; we already know the value and don't need to get + // it converted for us. + return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]); +}; + +convert.rgb.ansi256 = function (args) { + var r = args[0]; + var g = args[1]; + var b = args[2]; + + // we use the extended greyscale palette here, with the exception of + // black and white. normal palette only has 4 greyscale shades. + if (r === g && g === b) { + if (r < 8) { + return 16; + } + + if (r > 248) { + return 231; + } + + return Math.round(((r - 8) / 247) * 24) + 232; + } + + var ansi = 16 + + (36 * Math.round(r / 255 * 5)) + + (6 * Math.round(g / 255 * 5)) + + Math.round(b / 255 * 5); + + return ansi; +}; + +convert.ansi16.rgb = function (args) { + var color = args % 10; + + // handle greyscale + if (color === 0 || color === 7) { + if (args > 50) { + color += 3.5; + } + + color = color / 10.5 * 255; + + return [color, color, color]; + } + + var mult = (~~(args > 50) + 1) * 0.5; + var r = ((color & 1) * mult) * 255; + var g = (((color >> 1) & 1) * mult) * 255; + var b = (((color >> 2) & 1) * mult) * 255; + + return [r, g, b]; +}; + +convert.ansi256.rgb = function (args) { + // handle greyscale + if (args >= 232) { + var c = (args - 232) * 10 + 8; + return [c, c, c]; + } + + args -= 16; + + var rem; + var r = Math.floor(args / 36) / 5 * 255; + var g = Math.floor((rem = args % 36) / 6) / 5 * 255; + var b = (rem % 6) / 5 * 255; + + return [r, g, b]; +}; + +convert.rgb.hex = function (args) { + var integer = ((Math.round(args[0]) & 0xFF) << 16) + + ((Math.round(args[1]) & 0xFF) << 8) + + (Math.round(args[2]) & 0xFF); + + var string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.hex.rgb = function (args) { + var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i); + if (!match) { + return [0, 0, 0]; + } + + var colorString = match[0]; + + if (match[0].length === 3) { + colorString = colorString.split('').map(function (char) { + return char + char; + }).join(''); + } + + var integer = parseInt(colorString, 16); + var r = (integer >> 16) & 0xFF; + var g = (integer >> 8) & 0xFF; + var b = integer & 0xFF; + + return [r, g, b]; +}; + +convert.rgb.hcg = function (rgb) { + var r = rgb[0] / 255; + var g = rgb[1] / 255; + var b = rgb[2] / 255; + var max = Math.max(Math.max(r, g), b); + var min = Math.min(Math.min(r, g), b); + var chroma = (max - min); + var grayscale; + var hue; + + if (chroma < 1) { + grayscale = min / (1 - chroma); + } else { + grayscale = 0; + } + + if (chroma <= 0) { + hue = 0; + } else + if (max === r) { + hue = ((g - b) / chroma) % 6; + } else + if (max === g) { + hue = 2 + (b - r) / chroma; + } else { + hue = 4 + (r - g) / chroma + 4; + } + + hue /= 6; + hue %= 1; + + return [hue * 360, chroma * 100, grayscale * 100]; +}; + +convert.hsl.hcg = function (hsl) { + var s = hsl[1] / 100; + var l = hsl[2] / 100; + var c = 1; + var f = 0; + + if (l < 0.5) { + c = 2.0 * s * l; + } else { + c = 2.0 * s * (1.0 - l); + } + + if (c < 1.0) { + f = (l - 0.5 * c) / (1.0 - c); + } + + return [hsl[0], c * 100, f * 100]; +}; + +convert.hsv.hcg = function (hsv) { + var s = hsv[1] / 100; + var v = hsv[2] / 100; + + var c = s * v; + var f = 0; + + if (c < 1.0) { + f = (v - c) / (1 - c); + } + + return [hsv[0], c * 100, f * 100]; +}; + +convert.hcg.rgb = function (hcg) { + var h = hcg[0] / 360; + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + if (c === 0.0) { + return [g * 255, g * 255, g * 255]; + } + + var pure = [0, 0, 0]; + var hi = (h % 1) * 6; + var v = hi % 1; + var w = 1 - v; + var mg = 0; + + switch (Math.floor(hi)) { + case 0: + pure[0] = 1; pure[1] = v; pure[2] = 0; break; + case 1: + pure[0] = w; pure[1] = 1; pure[2] = 0; break; + case 2: + pure[0] = 0; pure[1] = 1; pure[2] = v; break; + case 3: + pure[0] = 0; pure[1] = w; pure[2] = 1; break; + case 4: + pure[0] = v; pure[1] = 0; pure[2] = 1; break; + default: + pure[0] = 1; pure[1] = 0; pure[2] = w; + } + + mg = (1.0 - c) * g; + + return [ + (c * pure[0] + mg) * 255, + (c * pure[1] + mg) * 255, + (c * pure[2] + mg) * 255 + ]; +}; + +convert.hcg.hsv = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + var v = c + g * (1.0 - c); + var f = 0; + + if (v > 0.0) { + f = c / v; + } + + return [hcg[0], f * 100, v * 100]; +}; + +convert.hcg.hsl = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + + var l = g * (1.0 - c) + 0.5 * c; + var s = 0; + + if (l > 0.0 && l < 0.5) { + s = c / (2 * l); + } else + if (l >= 0.5 && l < 1.0) { + s = c / (2 * (1 - l)); + } + + return [hcg[0], s * 100, l * 100]; +}; + +convert.hcg.hwb = function (hcg) { + var c = hcg[1] / 100; + var g = hcg[2] / 100; + var v = c + g * (1.0 - c); + return [hcg[0], (v - c) * 100, (1 - v) * 100]; +}; + +convert.hwb.hcg = function (hwb) { + var w = hwb[1] / 100; + var b = hwb[2] / 100; + var v = 1 - b; + var c = v - w; + var g = 0; + + if (c < 1) { + g = (v - c) / (1 - c); + } + + return [hwb[0], c * 100, g * 100]; +}; + +convert.apple.rgb = function (apple) { + return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255]; +}; + +convert.rgb.apple = function (rgb) { + return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535]; +}; + +convert.gray.rgb = function (args) { + return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255]; +}; + +convert.gray.hsl = convert.gray.hsv = function (args) { + return [0, 0, args[0]]; +}; + +convert.gray.hwb = function (gray) { + return [0, 100, gray[0]]; +}; + +convert.gray.cmyk = function (gray) { + return [0, 0, 0, gray[0]]; +}; + +convert.gray.lab = function (gray) { + return [gray[0], 0, 0]; +}; + +convert.gray.hex = function (gray) { + var val = Math.round(gray[0] / 100 * 255) & 0xFF; + var integer = (val << 16) + (val << 8) + val; + + var string = integer.toString(16).toUpperCase(); + return '000000'.substring(string.length) + string; +}; + +convert.rgb.gray = function (rgb) { + var val = (rgb[0] + rgb[1] + rgb[2]) / 3; + return [val / 255 * 100]; +}; +}); +var conversions_1 = conversions.rgb; +var conversions_2 = conversions.hsl; +var conversions_3 = conversions.hsv; +var conversions_4 = conversions.hwb; +var conversions_5 = conversions.cmyk; +var conversions_6 = conversions.xyz; +var conversions_7 = conversions.lab; +var conversions_8 = conversions.lch; +var conversions_9 = conversions.hex; +var conversions_10 = conversions.keyword; +var conversions_11 = conversions.ansi16; +var conversions_12 = conversions.ansi256; +var conversions_13 = conversions.hcg; +var conversions_14 = conversions.apple; +var conversions_15 = conversions.gray; + +/* + this function routes a model to all other models. + + all functions that are routed have a property `.conversion` attached + to the returned synthetic function. This property is an array + of strings, each with the steps in between the 'from' and 'to' + color models (inclusive). + + conversions that are not possible simply are not included. +*/ + +function buildGraph() { + var graph = {}; + // https://jsperf.com/object-keys-vs-for-in-with-closure/3 + var models = Object.keys(conversions); + + for (var len = models.length, i = 0; i < len; i++) { + graph[models[i]] = { + // http://jsperf.com/1-vs-infinity + // micro-opt, but this is simple. + distance: -1, + parent: null + }; + } + + return graph; +} + +// https://en.wikipedia.org/wiki/Breadth-first_search +function deriveBFS(fromModel) { + var graph = buildGraph(); + var queue = [fromModel]; // unshift -> queue -> pop + + graph[fromModel].distance = 0; + + while (queue.length) { + var current = queue.pop(); + var adjacents = Object.keys(conversions[current]); + + for (var len = adjacents.length, i = 0; i < len; i++) { + var adjacent = adjacents[i]; + var node = graph[adjacent]; + + if (node.distance === -1) { + node.distance = graph[current].distance + 1; + node.parent = current; + queue.unshift(adjacent); + } + } + } + + return graph; +} + +function link(from, to) { + return function (args) { + return to(from(args)); + }; +} + +function wrapConversion(toModel, graph) { + var path = [graph[toModel].parent, toModel]; + var fn = conversions[graph[toModel].parent][toModel]; + + var cur = graph[toModel].parent; + while (graph[cur].parent) { + path.unshift(graph[cur].parent); + fn = link(conversions[graph[cur].parent][cur], fn); + cur = graph[cur].parent; + } + + fn.conversion = path; + return fn; +} + +var route = function (fromModel) { + var graph = deriveBFS(fromModel); + var conversion = {}; + + var models = Object.keys(graph); + for (var len = models.length, i = 0; i < len; i++) { + var toModel = models[i]; + var node = graph[toModel]; + + if (node.parent === null) { + // no possible conversion, or this node is the source model. + continue; + } + + conversion[toModel] = wrapConversion(toModel, graph); + } + + return conversion; +}; + +var convert = {}; + +var models = Object.keys(conversions); + +function wrapRaw(fn) { + var wrappedFn = function (args) { + if (args === undefined || args === null) { + return args; + } + + if (arguments.length > 1) { + args = Array.prototype.slice.call(arguments); + } + + return fn(args); + }; + + // preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +function wrapRounded(fn) { + var wrappedFn = function (args) { + if (args === undefined || args === null) { + return args; + } + + if (arguments.length > 1) { + args = Array.prototype.slice.call(arguments); + } + + var result = fn(args); + + // we're assuming the result is an array here. + // see notice in conversions.js; don't use box types + // in conversion functions. + if (typeof result === 'object') { + for (var len = result.length, i = 0; i < len; i++) { + result[i] = Math.round(result[i]); + } + } + + return result; + }; + + // preserve .conversion property if there is one + if ('conversion' in fn) { + wrappedFn.conversion = fn.conversion; + } + + return wrappedFn; +} + +models.forEach(function (fromModel) { + convert[fromModel] = {}; + + Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels}); + Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels}); + + var routes = route(fromModel); + var routeModels = Object.keys(routes); + + routeModels.forEach(function (toModel) { + var fn = routes[toModel]; + + convert[fromModel][toModel] = wrapRounded(fn); + convert[fromModel][toModel].raw = wrapRaw(fn); + }); +}); + +var colorConvert = convert; + +var colorName$1 = { + "aliceblue": [240, 248, 255], + "antiquewhite": [250, 235, 215], + "aqua": [0, 255, 255], + "aquamarine": [127, 255, 212], + "azure": [240, 255, 255], + "beige": [245, 245, 220], + "bisque": [255, 228, 196], + "black": [0, 0, 0], + "blanchedalmond": [255, 235, 205], + "blue": [0, 0, 255], + "blueviolet": [138, 43, 226], + "brown": [165, 42, 42], + "burlywood": [222, 184, 135], + "cadetblue": [95, 158, 160], + "chartreuse": [127, 255, 0], + "chocolate": [210, 105, 30], + "coral": [255, 127, 80], + "cornflowerblue": [100, 149, 237], + "cornsilk": [255, 248, 220], + "crimson": [220, 20, 60], + "cyan": [0, 255, 255], + "darkblue": [0, 0, 139], + "darkcyan": [0, 139, 139], + "darkgoldenrod": [184, 134, 11], + "darkgray": [169, 169, 169], + "darkgreen": [0, 100, 0], + "darkgrey": [169, 169, 169], + "darkkhaki": [189, 183, 107], + "darkmagenta": [139, 0, 139], + "darkolivegreen": [85, 107, 47], + "darkorange": [255, 140, 0], + "darkorchid": [153, 50, 204], + "darkred": [139, 0, 0], + "darksalmon": [233, 150, 122], + "darkseagreen": [143, 188, 143], + "darkslateblue": [72, 61, 139], + "darkslategray": [47, 79, 79], + "darkslategrey": [47, 79, 79], + "darkturquoise": [0, 206, 209], + "darkviolet": [148, 0, 211], + "deeppink": [255, 20, 147], + "deepskyblue": [0, 191, 255], + "dimgray": [105, 105, 105], + "dimgrey": [105, 105, 105], + "dodgerblue": [30, 144, 255], + "firebrick": [178, 34, 34], + "floralwhite": [255, 250, 240], + "forestgreen": [34, 139, 34], + "fuchsia": [255, 0, 255], + "gainsboro": [220, 220, 220], + "ghostwhite": [248, 248, 255], + "gold": [255, 215, 0], + "goldenrod": [218, 165, 32], + "gray": [128, 128, 128], + "green": [0, 128, 0], + "greenyellow": [173, 255, 47], + "grey": [128, 128, 128], + "honeydew": [240, 255, 240], + "hotpink": [255, 105, 180], + "indianred": [205, 92, 92], + "indigo": [75, 0, 130], + "ivory": [255, 255, 240], + "khaki": [240, 230, 140], + "lavender": [230, 230, 250], + "lavenderblush": [255, 240, 245], + "lawngreen": [124, 252, 0], + "lemonchiffon": [255, 250, 205], + "lightblue": [173, 216, 230], + "lightcoral": [240, 128, 128], + "lightcyan": [224, 255, 255], + "lightgoldenrodyellow": [250, 250, 210], + "lightgray": [211, 211, 211], + "lightgreen": [144, 238, 144], + "lightgrey": [211, 211, 211], + "lightpink": [255, 182, 193], + "lightsalmon": [255, 160, 122], + "lightseagreen": [32, 178, 170], + "lightskyblue": [135, 206, 250], + "lightslategray": [119, 136, 153], + "lightslategrey": [119, 136, 153], + "lightsteelblue": [176, 196, 222], + "lightyellow": [255, 255, 224], + "lime": [0, 255, 0], + "limegreen": [50, 205, 50], + "linen": [250, 240, 230], + "magenta": [255, 0, 255], + "maroon": [128, 0, 0], + "mediumaquamarine": [102, 205, 170], + "mediumblue": [0, 0, 205], + "mediumorchid": [186, 85, 211], + "mediumpurple": [147, 112, 219], + "mediumseagreen": [60, 179, 113], + "mediumslateblue": [123, 104, 238], + "mediumspringgreen": [0, 250, 154], + "mediumturquoise": [72, 209, 204], + "mediumvioletred": [199, 21, 133], + "midnightblue": [25, 25, 112], + "mintcream": [245, 255, 250], + "mistyrose": [255, 228, 225], + "moccasin": [255, 228, 181], + "navajowhite": [255, 222, 173], + "navy": [0, 0, 128], + "oldlace": [253, 245, 230], + "olive": [128, 128, 0], + "olivedrab": [107, 142, 35], + "orange": [255, 165, 0], + "orangered": [255, 69, 0], + "orchid": [218, 112, 214], + "palegoldenrod": [238, 232, 170], + "palegreen": [152, 251, 152], + "paleturquoise": [175, 238, 238], + "palevioletred": [219, 112, 147], + "papayawhip": [255, 239, 213], + "peachpuff": [255, 218, 185], + "peru": [205, 133, 63], + "pink": [255, 192, 203], + "plum": [221, 160, 221], + "powderblue": [176, 224, 230], + "purple": [128, 0, 128], + "rebeccapurple": [102, 51, 153], + "red": [255, 0, 0], + "rosybrown": [188, 143, 143], + "royalblue": [65, 105, 225], + "saddlebrown": [139, 69, 19], + "salmon": [250, 128, 114], + "sandybrown": [244, 164, 96], + "seagreen": [46, 139, 87], + "seashell": [255, 245, 238], + "sienna": [160, 82, 45], + "silver": [192, 192, 192], + "skyblue": [135, 206, 235], + "slateblue": [106, 90, 205], + "slategray": [112, 128, 144], + "slategrey": [112, 128, 144], + "snow": [255, 250, 250], + "springgreen": [0, 255, 127], + "steelblue": [70, 130, 180], + "tan": [210, 180, 140], + "teal": [0, 128, 128], + "thistle": [216, 191, 216], + "tomato": [255, 99, 71], + "turquoise": [64, 224, 208], + "violet": [238, 130, 238], + "wheat": [245, 222, 179], + "white": [255, 255, 255], + "whitesmoke": [245, 245, 245], + "yellow": [255, 255, 0], + "yellowgreen": [154, 205, 50] +}; + +/* MIT license */ + + +var colorString = { getRgba: getRgba, getHsla: getHsla, getRgb: getRgb, @@ -30,32 +1399,41 @@ module.exports = { hslaString: hslaString, hwbString: hwbString, keyword: keyword -} +}; function getRgba(string) { if (!string) { return; } - var abbr = /^#([a-fA-F0-9]{3})$/i, - hex = /^#([a-fA-F0-9]{6})$/i, + var abbr = /^#([a-fA-F0-9]{3,4})$/i, + hex = /^#([a-fA-F0-9]{6}([a-fA-F0-9]{2})?)$/i, rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i, per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i, keyword = /(\w+)/; var rgb = [0, 0, 0], a = 1, - match = string.match(abbr); + match = string.match(abbr), + hexAlpha = ""; if (match) { match = match[1]; + hexAlpha = match[3]; for (var i = 0; i < rgb.length; i++) { rgb[i] = parseInt(match[i] + match[i], 16); } + if (hexAlpha) { + a = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100; + } } else if (match = string.match(hex)) { + hexAlpha = match[2]; match = match[1]; for (var i = 0; i < rgb.length; i++) { rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16); } + if (hexAlpha) { + a = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100; + } } else if (match = string.match(rgba)) { for (var i = 0; i < rgb.length; i++) { @@ -73,7 +1451,7 @@ function getRgba(string) { if (match[1] == "transparent") { return [0, 0, 0, 0]; } - rgb = colorNames[match[1]]; + rgb = colorName$1[match[1]]; if (!rgb) { return; } @@ -148,9 +1526,16 @@ function getAlpha(string) { } // generators -function hexString(rgb) { - return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1]) - + hexDouble(rgb[2]); +function hexString(rgba, a) { + var a = (a !== undefined && rgba.length === 3) ? a : rgba[3]; + return "#" + hexDouble(rgba[0]) + + hexDouble(rgba[1]) + + hexDouble(rgba[2]) + + ( + (a >= 0 && a < 1) + ? hexDouble(Math.round(a * 255)) + : "" + ); } function rgbString(rgba, alpha) { @@ -228,14 +1613,13 @@ function hexDouble(num) { //create a list of reverse color names var reverseNames = {}; -for (var name in colorNames) { - reverseNames[colorNames[name]] = name; +for (var name in colorName$1) { + reverseNames[colorName$1[name]] = name; } -},{"6":6}],3:[function(require,module,exports){ /* MIT license */ -var convert = require(5); -var string = require(2); + + var Color = function (obj) { if (obj instanceof Color) { @@ -258,12 +1642,12 @@ var Color = function (obj) { // parse Color() argument var vals; if (typeof obj === 'string') { - vals = string.getRgba(obj); + vals = colorString.getRgba(obj); if (vals) { this.setValues('rgb', vals); - } else if (vals = string.getHsla(obj)) { + } else if (vals = colorString.getHsla(obj)) { this.setValues('hsl', vals); - } else if (vals = string.getHwb(obj)) { + } else if (vals = colorString.getHwb(obj)) { this.setValues('hwb', vals); } } else if (typeof obj === 'object') { @@ -385,28 +1769,28 @@ Color.prototype = { }, hexString: function () { - return string.hexString(this.values.rgb); + return colorString.hexString(this.values.rgb); }, rgbString: function () { - return string.rgbString(this.values.rgb, this.values.alpha); + return colorString.rgbString(this.values.rgb, this.values.alpha); }, rgbaString: function () { - return string.rgbaString(this.values.rgb, this.values.alpha); + return colorString.rgbaString(this.values.rgb, this.values.alpha); }, percentString: function () { - return string.percentString(this.values.rgb, this.values.alpha); + return colorString.percentString(this.values.rgb, this.values.alpha); }, hslString: function () { - return string.hslString(this.values.hsl, this.values.alpha); + return colorString.hslString(this.values.hsl, this.values.alpha); }, hslaString: function () { - return string.hslaString(this.values.hsl, this.values.alpha); + return colorString.hslaString(this.values.hsl, this.values.alpha); }, hwbString: function () { - return string.hwbString(this.values.hwb, this.values.alpha); + return colorString.hwbString(this.values.hwb, this.values.alpha); }, keyword: function () { - return string.keyword(this.values.rgb, this.values.alpha); + return colorString.keyword(this.values.rgb, this.values.alpha); }, rgbNumber: function () { @@ -672,7 +2056,7 @@ Color.prototype.setValues = function (space, vals) { // convert to all the other color spaces for (var sname in spaces) { if (sname !== space) { - values[sname] = convert[space][sname](values[space]); + values[sname] = colorConvert[space][sname](values[space]); } } @@ -717,9079 +2101,7 @@ if (typeof window !== 'undefined') { window.Color = Color; } -module.exports = Color; - -},{"2":2,"5":5}],4:[function(require,module,exports){ -/* MIT license */ - -module.exports = { - rgb2hsl: rgb2hsl, - rgb2hsv: rgb2hsv, - rgb2hwb: rgb2hwb, - rgb2cmyk: rgb2cmyk, - rgb2keyword: rgb2keyword, - rgb2xyz: rgb2xyz, - rgb2lab: rgb2lab, - rgb2lch: rgb2lch, - - hsl2rgb: hsl2rgb, - hsl2hsv: hsl2hsv, - hsl2hwb: hsl2hwb, - hsl2cmyk: hsl2cmyk, - hsl2keyword: hsl2keyword, - - hsv2rgb: hsv2rgb, - hsv2hsl: hsv2hsl, - hsv2hwb: hsv2hwb, - hsv2cmyk: hsv2cmyk, - hsv2keyword: hsv2keyword, - - hwb2rgb: hwb2rgb, - hwb2hsl: hwb2hsl, - hwb2hsv: hwb2hsv, - hwb2cmyk: hwb2cmyk, - hwb2keyword: hwb2keyword, - - cmyk2rgb: cmyk2rgb, - cmyk2hsl: cmyk2hsl, - cmyk2hsv: cmyk2hsv, - cmyk2hwb: cmyk2hwb, - cmyk2keyword: cmyk2keyword, - - keyword2rgb: keyword2rgb, - keyword2hsl: keyword2hsl, - keyword2hsv: keyword2hsv, - keyword2hwb: keyword2hwb, - keyword2cmyk: keyword2cmyk, - keyword2lab: keyword2lab, - keyword2xyz: keyword2xyz, - - xyz2rgb: xyz2rgb, - xyz2lab: xyz2lab, - xyz2lch: xyz2lch, - - lab2xyz: lab2xyz, - lab2rgb: lab2rgb, - lab2lch: lab2lch, - - lch2lab: lch2lab, - lch2xyz: lch2xyz, - lch2rgb: lch2rgb -} - - -function rgb2hsl(rgb) { - var r = rgb[0]/255, - g = rgb[1]/255, - b = rgb[2]/255, - min = Math.min(r, g, b), - max = Math.max(r, g, b), - delta = max - min, - h, s, l; - - if (max == min) - h = 0; - else if (r == max) - h = (g - b) / delta; - else if (g == max) - h = 2 + (b - r) / delta; - else if (b == max) - h = 4 + (r - g)/ delta; - - h = Math.min(h * 60, 360); - - if (h < 0) - h += 360; - - l = (min + max) / 2; - - if (max == min) - s = 0; - else if (l <= 0.5) - s = delta / (max + min); - else - s = delta / (2 - max - min); - - return [h, s * 100, l * 100]; -} - -function rgb2hsv(rgb) { - var r = rgb[0], - g = rgb[1], - b = rgb[2], - min = Math.min(r, g, b), - max = Math.max(r, g, b), - delta = max - min, - h, s, v; - - if (max == 0) - s = 0; - else - s = (delta/max * 1000)/10; - - if (max == min) - h = 0; - else if (r == max) - h = (g - b) / delta; - else if (g == max) - h = 2 + (b - r) / delta; - else if (b == max) - h = 4 + (r - g) / delta; - - h = Math.min(h * 60, 360); - - if (h < 0) - h += 360; - - v = ((max / 255) * 1000) / 10; - - return [h, s, v]; -} - -function rgb2hwb(rgb) { - var r = rgb[0], - g = rgb[1], - b = rgb[2], - h = rgb2hsl(rgb)[0], - w = 1/255 * Math.min(r, Math.min(g, b)), - b = 1 - 1/255 * Math.max(r, Math.max(g, b)); - - return [h, w * 100, b * 100]; -} - -function rgb2cmyk(rgb) { - var r = rgb[0] / 255, - g = rgb[1] / 255, - b = rgb[2] / 255, - c, m, y, k; - - k = Math.min(1 - r, 1 - g, 1 - b); - c = (1 - r - k) / (1 - k) || 0; - m = (1 - g - k) / (1 - k) || 0; - y = (1 - b - k) / (1 - k) || 0; - return [c * 100, m * 100, y * 100, k * 100]; -} - -function rgb2keyword(rgb) { - return reverseKeywords[JSON.stringify(rgb)]; -} - -function rgb2xyz(rgb) { - var r = rgb[0] / 255, - g = rgb[1] / 255, - b = rgb[2] / 255; - - // assume sRGB - r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92); - g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92); - b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92); - - var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805); - var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722); - var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505); - - return [x * 100, y *100, z * 100]; -} - -function rgb2lab(rgb) { - var xyz = rgb2xyz(rgb), - x = xyz[0], - y = xyz[1], - z = xyz[2], - l, a, b; - - x /= 95.047; - y /= 100; - z /= 108.883; - - x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116); - y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116); - z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116); - - l = (116 * y) - 16; - a = 500 * (x - y); - b = 200 * (y - z); - - return [l, a, b]; -} - -function rgb2lch(args) { - return lab2lch(rgb2lab(args)); -} - -function hsl2rgb(hsl) { - var h = hsl[0] / 360, - s = hsl[1] / 100, - l = hsl[2] / 100, - t1, t2, t3, rgb, val; - - if (s == 0) { - val = l * 255; - return [val, val, val]; - } - - if (l < 0.5) - t2 = l * (1 + s); - else - t2 = l + s - l * s; - t1 = 2 * l - t2; - - rgb = [0, 0, 0]; - for (var i = 0; i < 3; i++) { - t3 = h + 1 / 3 * - (i - 1); - t3 < 0 && t3++; - t3 > 1 && t3--; - - if (6 * t3 < 1) - val = t1 + (t2 - t1) * 6 * t3; - else if (2 * t3 < 1) - val = t2; - else if (3 * t3 < 2) - val = t1 + (t2 - t1) * (2 / 3 - t3) * 6; - else - val = t1; - - rgb[i] = val * 255; - } - - return rgb; -} - -function hsl2hsv(hsl) { - var h = hsl[0], - s = hsl[1] / 100, - l = hsl[2] / 100, - sv, v; - - if(l === 0) { - // no need to do calc on black - // also avoids divide by 0 error - return [0, 0, 0]; - } - - l *= 2; - s *= (l <= 1) ? l : 2 - l; - v = (l + s) / 2; - sv = (2 * s) / (l + s); - return [h, sv * 100, v * 100]; -} - -function hsl2hwb(args) { - return rgb2hwb(hsl2rgb(args)); -} - -function hsl2cmyk(args) { - return rgb2cmyk(hsl2rgb(args)); -} - -function hsl2keyword(args) { - return rgb2keyword(hsl2rgb(args)); -} - - -function hsv2rgb(hsv) { - var h = hsv[0] / 60, - s = hsv[1] / 100, - v = hsv[2] / 100, - hi = Math.floor(h) % 6; - - var f = h - Math.floor(h), - p = 255 * v * (1 - s), - q = 255 * v * (1 - (s * f)), - t = 255 * v * (1 - (s * (1 - f))), - v = 255 * v; - - switch(hi) { - case 0: - return [v, t, p]; - case 1: - return [q, v, p]; - case 2: - return [p, v, t]; - case 3: - return [p, q, v]; - case 4: - return [t, p, v]; - case 5: - return [v, p, q]; - } -} - -function hsv2hsl(hsv) { - var h = hsv[0], - s = hsv[1] / 100, - v = hsv[2] / 100, - sl, l; - - l = (2 - s) * v; - sl = s * v; - sl /= (l <= 1) ? l : 2 - l; - sl = sl || 0; - l /= 2; - return [h, sl * 100, l * 100]; -} - -function hsv2hwb(args) { - return rgb2hwb(hsv2rgb(args)) -} - -function hsv2cmyk(args) { - return rgb2cmyk(hsv2rgb(args)); -} - -function hsv2keyword(args) { - return rgb2keyword(hsv2rgb(args)); -} - -// http://dev.w3.org/csswg/css-color/#hwb-to-rgb -function hwb2rgb(hwb) { - var h = hwb[0] / 360, - wh = hwb[1] / 100, - bl = hwb[2] / 100, - ratio = wh + bl, - i, v, f, n; - - // wh + bl cant be > 1 - if (ratio > 1) { - wh /= ratio; - bl /= ratio; - } - - i = Math.floor(6 * h); - v = 1 - bl; - f = 6 * h - i; - if ((i & 0x01) != 0) { - f = 1 - f; - } - n = wh + f * (v - wh); // linear interpolation - - switch (i) { - default: - case 6: - case 0: r = v; g = n; b = wh; break; - case 1: r = n; g = v; b = wh; break; - case 2: r = wh; g = v; b = n; break; - case 3: r = wh; g = n; b = v; break; - case 4: r = n; g = wh; b = v; break; - case 5: r = v; g = wh; b = n; break; - } - - return [r * 255, g * 255, b * 255]; -} - -function hwb2hsl(args) { - return rgb2hsl(hwb2rgb(args)); -} - -function hwb2hsv(args) { - return rgb2hsv(hwb2rgb(args)); -} - -function hwb2cmyk(args) { - return rgb2cmyk(hwb2rgb(args)); -} - -function hwb2keyword(args) { - return rgb2keyword(hwb2rgb(args)); -} - -function cmyk2rgb(cmyk) { - var c = cmyk[0] / 100, - m = cmyk[1] / 100, - y = cmyk[2] / 100, - k = cmyk[3] / 100, - r, g, b; - - r = 1 - Math.min(1, c * (1 - k) + k); - g = 1 - Math.min(1, m * (1 - k) + k); - b = 1 - Math.min(1, y * (1 - k) + k); - return [r * 255, g * 255, b * 255]; -} - -function cmyk2hsl(args) { - return rgb2hsl(cmyk2rgb(args)); -} - -function cmyk2hsv(args) { - return rgb2hsv(cmyk2rgb(args)); -} - -function cmyk2hwb(args) { - return rgb2hwb(cmyk2rgb(args)); -} - -function cmyk2keyword(args) { - return rgb2keyword(cmyk2rgb(args)); -} - - -function xyz2rgb(xyz) { - var x = xyz[0] / 100, - y = xyz[1] / 100, - z = xyz[2] / 100, - r, g, b; - - r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986); - g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415); - b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570); - - // assume sRGB - r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055) - : r = (r * 12.92); - - g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055) - : g = (g * 12.92); - - b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055) - : b = (b * 12.92); - - r = Math.min(Math.max(0, r), 1); - g = Math.min(Math.max(0, g), 1); - b = Math.min(Math.max(0, b), 1); - - return [r * 255, g * 255, b * 255]; -} - -function xyz2lab(xyz) { - var x = xyz[0], - y = xyz[1], - z = xyz[2], - l, a, b; - - x /= 95.047; - y /= 100; - z /= 108.883; - - x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116); - y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116); - z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116); - - l = (116 * y) - 16; - a = 500 * (x - y); - b = 200 * (y - z); - - return [l, a, b]; -} - -function xyz2lch(args) { - return lab2lch(xyz2lab(args)); -} - -function lab2xyz(lab) { - var l = lab[0], - a = lab[1], - b = lab[2], - x, y, z, y2; - - if (l <= 8) { - y = (l * 100) / 903.3; - y2 = (7.787 * (y / 100)) + (16 / 116); - } else { - y = 100 * Math.pow((l + 16) / 116, 3); - y2 = Math.pow(y / 100, 1/3); - } - - x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3); - - z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3); - - return [x, y, z]; -} - -function lab2lch(lab) { - var l = lab[0], - a = lab[1], - b = lab[2], - hr, h, c; - - hr = Math.atan2(b, a); - h = hr * 360 / 2 / Math.PI; - if (h < 0) { - h += 360; - } - c = Math.sqrt(a * a + b * b); - return [l, c, h]; -} - -function lab2rgb(args) { - return xyz2rgb(lab2xyz(args)); -} - -function lch2lab(lch) { - var l = lch[0], - c = lch[1], - h = lch[2], - a, b, hr; - - hr = h / 360 * 2 * Math.PI; - a = c * Math.cos(hr); - b = c * Math.sin(hr); - return [l, a, b]; -} - -function lch2xyz(args) { - return lab2xyz(lch2lab(args)); -} - -function lch2rgb(args) { - return lab2rgb(lch2lab(args)); -} - -function keyword2rgb(keyword) { - return cssKeywords[keyword]; -} - -function keyword2hsl(args) { - return rgb2hsl(keyword2rgb(args)); -} - -function keyword2hsv(args) { - return rgb2hsv(keyword2rgb(args)); -} - -function keyword2hwb(args) { - return rgb2hwb(keyword2rgb(args)); -} - -function keyword2cmyk(args) { - return rgb2cmyk(keyword2rgb(args)); -} - -function keyword2lab(args) { - return rgb2lab(keyword2rgb(args)); -} - -function keyword2xyz(args) { - return rgb2xyz(keyword2rgb(args)); -} - -var cssKeywords = { - aliceblue: [240,248,255], - antiquewhite: [250,235,215], - aqua: [0,255,255], - aquamarine: [127,255,212], - azure: [240,255,255], - beige: [245,245,220], - bisque: [255,228,196], - black: [0,0,0], - blanchedalmond: [255,235,205], - blue: [0,0,255], - blueviolet: [138,43,226], - brown: [165,42,42], - burlywood: [222,184,135], - cadetblue: [95,158,160], - chartreuse: [127,255,0], - chocolate: [210,105,30], - coral: [255,127,80], - cornflowerblue: [100,149,237], - cornsilk: [255,248,220], - crimson: [220,20,60], - cyan: [0,255,255], - darkblue: [0,0,139], - darkcyan: [0,139,139], - darkgoldenrod: [184,134,11], - darkgray: [169,169,169], - darkgreen: [0,100,0], - darkgrey: [169,169,169], - darkkhaki: [189,183,107], - darkmagenta: [139,0,139], - darkolivegreen: [85,107,47], - darkorange: [255,140,0], - darkorchid: [153,50,204], - darkred: [139,0,0], - darksalmon: [233,150,122], - darkseagreen: [143,188,143], - darkslateblue: [72,61,139], - darkslategray: [47,79,79], - darkslategrey: [47,79,79], - darkturquoise: [0,206,209], - darkviolet: [148,0,211], - deeppink: [255,20,147], - deepskyblue: [0,191,255], - dimgray: [105,105,105], - dimgrey: [105,105,105], - dodgerblue: [30,144,255], - firebrick: [178,34,34], - floralwhite: [255,250,240], - forestgreen: [34,139,34], - fuchsia: [255,0,255], - gainsboro: [220,220,220], - ghostwhite: [248,248,255], - gold: [255,215,0], - goldenrod: [218,165,32], - gray: [128,128,128], - green: [0,128,0], - greenyellow: [173,255,47], - grey: [128,128,128], - honeydew: [240,255,240], - hotpink: [255,105,180], - indianred: [205,92,92], - indigo: [75,0,130], - ivory: [255,255,240], - khaki: [240,230,140], - lavender: [230,230,250], - lavenderblush: [255,240,245], - lawngreen: [124,252,0], - lemonchiffon: [255,250,205], - lightblue: [173,216,230], - lightcoral: [240,128,128], - lightcyan: [224,255,255], - lightgoldenrodyellow: [250,250,210], - lightgray: [211,211,211], - lightgreen: [144,238,144], - lightgrey: [211,211,211], - lightpink: [255,182,193], - lightsalmon: [255,160,122], - lightseagreen: [32,178,170], - lightskyblue: [135,206,250], - lightslategray: [119,136,153], - lightslategrey: [119,136,153], - lightsteelblue: [176,196,222], - lightyellow: [255,255,224], - lime: [0,255,0], - limegreen: [50,205,50], - linen: [250,240,230], - magenta: [255,0,255], - maroon: [128,0,0], - mediumaquamarine: [102,205,170], - mediumblue: [0,0,205], - mediumorchid: [186,85,211], - mediumpurple: [147,112,219], - mediumseagreen: [60,179,113], - mediumslateblue: [123,104,238], - mediumspringgreen: [0,250,154], - mediumturquoise: [72,209,204], - mediumvioletred: [199,21,133], - midnightblue: [25,25,112], - mintcream: [245,255,250], - mistyrose: [255,228,225], - moccasin: [255,228,181], - navajowhite: [255,222,173], - navy: [0,0,128], - oldlace: [253,245,230], - olive: [128,128,0], - olivedrab: [107,142,35], - orange: [255,165,0], - orangered: [255,69,0], - orchid: [218,112,214], - palegoldenrod: [238,232,170], - palegreen: [152,251,152], - paleturquoise: [175,238,238], - palevioletred: [219,112,147], - papayawhip: [255,239,213], - peachpuff: [255,218,185], - peru: [205,133,63], - pink: [255,192,203], - plum: [221,160,221], - powderblue: [176,224,230], - purple: [128,0,128], - rebeccapurple: [102, 51, 153], - red: [255,0,0], - rosybrown: [188,143,143], - royalblue: [65,105,225], - saddlebrown: [139,69,19], - salmon: [250,128,114], - sandybrown: [244,164,96], - seagreen: [46,139,87], - seashell: [255,245,238], - sienna: [160,82,45], - silver: [192,192,192], - skyblue: [135,206,235], - slateblue: [106,90,205], - slategray: [112,128,144], - slategrey: [112,128,144], - snow: [255,250,250], - springgreen: [0,255,127], - steelblue: [70,130,180], - tan: [210,180,140], - teal: [0,128,128], - thistle: [216,191,216], - tomato: [255,99,71], - turquoise: [64,224,208], - violet: [238,130,238], - wheat: [245,222,179], - white: [255,255,255], - whitesmoke: [245,245,245], - yellow: [255,255,0], - yellowgreen: [154,205,50] -}; - -var reverseKeywords = {}; -for (var key in cssKeywords) { - reverseKeywords[JSON.stringify(cssKeywords[key])] = key; -} - -},{}],5:[function(require,module,exports){ -var conversions = require(4); - -var convert = function() { - return new Converter(); -} - -for (var func in conversions) { - // export Raw versions - convert[func + "Raw"] = (function(func) { - // accept array or plain args - return function(arg) { - if (typeof arg == "number") - arg = Array.prototype.slice.call(arguments); - return conversions[func](arg); - } - })(func); - - var pair = /(\w+)2(\w+)/.exec(func), - from = pair[1], - to = pair[2]; - - // export rgb2hsl and ["rgb"]["hsl"] - convert[from] = convert[from] || {}; - - convert[from][to] = convert[func] = (function(func) { - return function(arg) { - if (typeof arg == "number") - arg = Array.prototype.slice.call(arguments); - - var val = conversions[func](arg); - if (typeof val == "string" || val === undefined) - return val; // keyword - - for (var i = 0; i < val.length; i++) - val[i] = Math.round(val[i]); - return val; - } - })(func); -} - - -/* Converter does lazy conversion and caching */ -var Converter = function() { - this.convs = {}; -}; - -/* Either get the values for a space or - set the values for a space, depending on args */ -Converter.prototype.routeSpace = function(space, args) { - var values = args[0]; - if (values === undefined) { - // color.rgb() - return this.getValues(space); - } - // color.rgb(10, 10, 10) - if (typeof values == "number") { - values = Array.prototype.slice.call(args); - } - - return this.setValues(space, values); -}; - -/* Set the values for a space, invalidating cache */ -Converter.prototype.setValues = function(space, values) { - this.space = space; - this.convs = {}; - this.convs[space] = values; - return this; -}; - -/* Get the values for a space. If there's already - a conversion for the space, fetch it, otherwise - compute it */ -Converter.prototype.getValues = function(space) { - var vals = this.convs[space]; - if (!vals) { - var fspace = this.space, - from = this.convs[fspace]; - vals = convert[fspace][space](from); - - this.convs[space] = vals; - } - return vals; -}; - -["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) { - Converter.prototype[space] = function(vals) { - return this.routeSpace(space, arguments); - } -}); - -module.exports = convert; -},{"4":4}],6:[function(require,module,exports){ -'use strict' - -module.exports = { - "aliceblue": [240, 248, 255], - "antiquewhite": [250, 235, 215], - "aqua": [0, 255, 255], - "aquamarine": [127, 255, 212], - "azure": [240, 255, 255], - "beige": [245, 245, 220], - "bisque": [255, 228, 196], - "black": [0, 0, 0], - "blanchedalmond": [255, 235, 205], - "blue": [0, 0, 255], - "blueviolet": [138, 43, 226], - "brown": [165, 42, 42], - "burlywood": [222, 184, 135], - "cadetblue": [95, 158, 160], - "chartreuse": [127, 255, 0], - "chocolate": [210, 105, 30], - "coral": [255, 127, 80], - "cornflowerblue": [100, 149, 237], - "cornsilk": [255, 248, 220], - "crimson": [220, 20, 60], - "cyan": [0, 255, 255], - "darkblue": [0, 0, 139], - "darkcyan": [0, 139, 139], - "darkgoldenrod": [184, 134, 11], - "darkgray": [169, 169, 169], - "darkgreen": [0, 100, 0], - "darkgrey": [169, 169, 169], - "darkkhaki": [189, 183, 107], - "darkmagenta": [139, 0, 139], - "darkolivegreen": [85, 107, 47], - "darkorange": [255, 140, 0], - "darkorchid": [153, 50, 204], - "darkred": [139, 0, 0], - "darksalmon": [233, 150, 122], - "darkseagreen": [143, 188, 143], - "darkslateblue": [72, 61, 139], - "darkslategray": [47, 79, 79], - "darkslategrey": [47, 79, 79], - "darkturquoise": [0, 206, 209], - "darkviolet": [148, 0, 211], - "deeppink": [255, 20, 147], - "deepskyblue": [0, 191, 255], - "dimgray": [105, 105, 105], - "dimgrey": [105, 105, 105], - "dodgerblue": [30, 144, 255], - "firebrick": [178, 34, 34], - "floralwhite": [255, 250, 240], - "forestgreen": [34, 139, 34], - "fuchsia": [255, 0, 255], - "gainsboro": [220, 220, 220], - "ghostwhite": [248, 248, 255], - "gold": [255, 215, 0], - "goldenrod": [218, 165, 32], - "gray": [128, 128, 128], - "green": [0, 128, 0], - "greenyellow": [173, 255, 47], - "grey": [128, 128, 128], - "honeydew": [240, 255, 240], - "hotpink": [255, 105, 180], - "indianred": [205, 92, 92], - "indigo": [75, 0, 130], - "ivory": [255, 255, 240], - "khaki": [240, 230, 140], - "lavender": [230, 230, 250], - "lavenderblush": [255, 240, 245], - "lawngreen": [124, 252, 0], - "lemonchiffon": [255, 250, 205], - "lightblue": [173, 216, 230], - "lightcoral": [240, 128, 128], - "lightcyan": [224, 255, 255], - "lightgoldenrodyellow": [250, 250, 210], - "lightgray": [211, 211, 211], - "lightgreen": [144, 238, 144], - "lightgrey": [211, 211, 211], - "lightpink": [255, 182, 193], - "lightsalmon": [255, 160, 122], - "lightseagreen": [32, 178, 170], - "lightskyblue": [135, 206, 250], - "lightslategray": [119, 136, 153], - "lightslategrey": [119, 136, 153], - "lightsteelblue": [176, 196, 222], - "lightyellow": [255, 255, 224], - "lime": [0, 255, 0], - "limegreen": [50, 205, 50], - "linen": [250, 240, 230], - "magenta": [255, 0, 255], - "maroon": [128, 0, 0], - "mediumaquamarine": [102, 205, 170], - "mediumblue": [0, 0, 205], - "mediumorchid": [186, 85, 211], - "mediumpurple": [147, 112, 219], - "mediumseagreen": [60, 179, 113], - "mediumslateblue": [123, 104, 238], - "mediumspringgreen": [0, 250, 154], - "mediumturquoise": [72, 209, 204], - "mediumvioletred": [199, 21, 133], - "midnightblue": [25, 25, 112], - "mintcream": [245, 255, 250], - "mistyrose": [255, 228, 225], - "moccasin": [255, 228, 181], - "navajowhite": [255, 222, 173], - "navy": [0, 0, 128], - "oldlace": [253, 245, 230], - "olive": [128, 128, 0], - "olivedrab": [107, 142, 35], - "orange": [255, 165, 0], - "orangered": [255, 69, 0], - "orchid": [218, 112, 214], - "palegoldenrod": [238, 232, 170], - "palegreen": [152, 251, 152], - "paleturquoise": [175, 238, 238], - "palevioletred": [219, 112, 147], - "papayawhip": [255, 239, 213], - "peachpuff": [255, 218, 185], - "peru": [205, 133, 63], - "pink": [255, 192, 203], - "plum": [221, 160, 221], - "powderblue": [176, 224, 230], - "purple": [128, 0, 128], - "rebeccapurple": [102, 51, 153], - "red": [255, 0, 0], - "rosybrown": [188, 143, 143], - "royalblue": [65, 105, 225], - "saddlebrown": [139, 69, 19], - "salmon": [250, 128, 114], - "sandybrown": [244, 164, 96], - "seagreen": [46, 139, 87], - "seashell": [255, 245, 238], - "sienna": [160, 82, 45], - "silver": [192, 192, 192], - "skyblue": [135, 206, 235], - "slateblue": [106, 90, 205], - "slategray": [112, 128, 144], - "slategrey": [112, 128, 144], - "snow": [255, 250, 250], - "springgreen": [0, 255, 127], - "steelblue": [70, 130, 180], - "tan": [210, 180, 140], - "teal": [0, 128, 128], - "thistle": [216, 191, 216], - "tomato": [255, 99, 71], - "turquoise": [64, 224, 208], - "violet": [238, 130, 238], - "wheat": [245, 222, 179], - "white": [255, 255, 255], - "whitesmoke": [245, 245, 245], - "yellow": [255, 255, 0], - "yellowgreen": [154, 205, 50] -}; - -},{}],7:[function(require,module,exports){ -/** - * @namespace Chart - */ -var Chart = require(29)(); - -Chart.helpers = require(45); - -// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests! -require(27)(Chart); - -Chart.defaults = require(25); -Chart.Element = require(26); -Chart.elements = require(40); -Chart.Interaction = require(28); -Chart.layouts = require(30); -Chart.platform = require(48); -Chart.plugins = require(31); -Chart.Ticks = require(34); - -require(22)(Chart); -require(23)(Chart); -require(24)(Chart); -require(33)(Chart); -require(32)(Chart); -require(35)(Chart); - -require(55)(Chart); -require(53)(Chart); -require(54)(Chart); -require(56)(Chart); -require(57)(Chart); -require(58)(Chart); - -// Controllers must be loaded after elements -// See Chart.core.datasetController.dataElementType -require(15)(Chart); -require(16)(Chart); -require(17)(Chart); -require(18)(Chart); -require(19)(Chart); -require(20)(Chart); -require(21)(Chart); - -require(8)(Chart); -require(9)(Chart); -require(10)(Chart); -require(11)(Chart); -require(12)(Chart); -require(13)(Chart); -require(14)(Chart); - -// Loading built-it plugins -var plugins = require(49); -for (var k in plugins) { - if (plugins.hasOwnProperty(k)) { - Chart.plugins.register(plugins[k]); - } -} - -Chart.platform.initialize(); - -module.exports = Chart; -if (typeof window !== 'undefined') { - window.Chart = Chart; -} - -// DEPRECATIONS - -/** - * Provided for backward compatibility, not available anymore - * @namespace Chart.Legend - * @deprecated since version 2.1.5 - * @todo remove at version 3 - * @private - */ -Chart.Legend = plugins.legend._element; - -/** - * Provided for backward compatibility, not available anymore - * @namespace Chart.Title - * @deprecated since version 2.1.5 - * @todo remove at version 3 - * @private - */ -Chart.Title = plugins.title._element; - -/** - * Provided for backward compatibility, use Chart.plugins instead - * @namespace Chart.pluginService - * @deprecated since version 2.1.5 - * @todo remove at version 3 - * @private - */ -Chart.pluginService = Chart.plugins; - -/** - * Provided for backward compatibility, inheriting from Chart.PlugingBase has no - * effect, instead simply create/register plugins via plain JavaScript objects. - * @interface Chart.PluginBase - * @deprecated since version 2.5.0 - * @todo remove at version 3 - * @private - */ -Chart.PluginBase = Chart.Element.extend({}); - -/** - * Provided for backward compatibility, use Chart.helpers.canvas instead. - * @namespace Chart.canvasHelpers - * @deprecated since version 2.6.0 - * @todo remove at version 3 - * @private - */ -Chart.canvasHelpers = Chart.helpers.canvas; - -/** - * Provided for backward compatibility, use Chart.layouts instead. - * @namespace Chart.layoutService - * @deprecated since version 2.8.0 - * @todo remove at version 3 - * @private - */ -Chart.layoutService = Chart.layouts; - -},{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"40":40,"45":45,"48":48,"49":49,"53":53,"54":54,"55":55,"56":56,"57":57,"58":58,"8":8,"9":9}],8:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.Bar = function(context, config) { - config.type = 'bar'; - - return new Chart(context, config); - }; - -}; - -},{}],9:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.Bubble = function(context, config) { - config.type = 'bubble'; - return new Chart(context, config); - }; - -}; - -},{}],10:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.Doughnut = function(context, config) { - config.type = 'doughnut'; - - return new Chart(context, config); - }; - -}; - -},{}],11:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.Line = function(context, config) { - config.type = 'line'; - - return new Chart(context, config); - }; - -}; - -},{}],12:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.PolarArea = function(context, config) { - config.type = 'polarArea'; - - return new Chart(context, config); - }; - -}; - -},{}],13:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - - Chart.Radar = function(context, config) { - config.type = 'radar'; - - return new Chart(context, config); - }; - -}; - -},{}],14:[function(require,module,exports){ -'use strict'; - -module.exports = function(Chart) { - Chart.Scatter = function(context, config) { - config.type = 'scatter'; - return new Chart(context, config); - }; -}; - -},{}],15:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('bar', { - hover: { - mode: 'label' - }, - - scales: { - xAxes: [{ - type: 'category', - - // Specific to Bar Controller - categoryPercentage: 0.8, - barPercentage: 0.9, - - // offset settings - offset: true, - - // grid line settings - gridLines: { - offsetGridLines: true - } - }], - - yAxes: [{ - type: 'linear' - }] - } -}); - -defaults._set('horizontalBar', { - hover: { - mode: 'index', - axis: 'y' - }, - - scales: { - xAxes: [{ - type: 'linear', - position: 'bottom' - }], - - yAxes: [{ - position: 'left', - type: 'category', - - // Specific to Horizontal Bar Controller - categoryPercentage: 0.8, - barPercentage: 0.9, - - // offset settings - offset: true, - - // grid line settings - gridLines: { - offsetGridLines: true - } - }] - }, - - elements: { - rectangle: { - borderSkipped: 'left' - } - }, - - tooltips: { - callbacks: { - title: function(item, data) { - // Pick first xLabel for now - var title = ''; - - if (item.length > 0) { - if (item[0].yLabel) { - title = item[0].yLabel; - } else if (data.labels.length > 0 && item[0].index < data.labels.length) { - title = data.labels[item[0].index]; - } - } - - return title; - }, - - label: function(item, data) { - var datasetLabel = data.datasets[item.datasetIndex].label || ''; - return datasetLabel + ': ' + item.xLabel; - } - }, - mode: 'index', - axis: 'y' - } -}); - -/** - * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap. - * @private - */ -function computeMinSampleSize(scale, pixels) { - var min = scale.isHorizontal() ? scale.width : scale.height; - var ticks = scale.getTicks(); - var prev, curr, i, ilen; - - for (i = 1, ilen = pixels.length; i < ilen; ++i) { - min = Math.min(min, pixels[i] - pixels[i - 1]); - } - - for (i = 0, ilen = ticks.length; i < ilen; ++i) { - curr = scale.getPixelForTick(i); - min = i > 0 ? Math.min(min, curr - prev) : min; - prev = curr; - } - - return min; -} - -/** - * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null, - * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This - * mode currently always generates bars equally sized (until we introduce scriptable options?). - * @private - */ -function computeFitCategoryTraits(index, ruler, options) { - var thickness = options.barThickness; - var count = ruler.stackCount; - var curr = ruler.pixels[index]; - var size, ratio; - - if (helpers.isNullOrUndef(thickness)) { - size = ruler.min * options.categoryPercentage; - ratio = options.barPercentage; - } else { - // When bar thickness is enforced, category and bar percentages are ignored. - // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%') - // and deprecate barPercentage since this value is ignored when thickness is absolute. - size = thickness * count; - ratio = 1; - } - - return { - chunk: size / count, - ratio: ratio, - start: curr - (size / 2) - }; -} - -/** - * Computes an "optimal" category that globally arranges bars side by side (no gap when - * percentage options are 1), based on the previous and following categories. This mode - * generates bars with different widths when data are not evenly spaced. - * @private - */ -function computeFlexCategoryTraits(index, ruler, options) { - var pixels = ruler.pixels; - var curr = pixels[index]; - var prev = index > 0 ? pixels[index - 1] : null; - var next = index < pixels.length - 1 ? pixels[index + 1] : null; - var percent = options.categoryPercentage; - var start, size; - - if (prev === null) { - // first data: its size is double based on the next point or, - // if it's also the last data, we use the scale end extremity. - prev = curr - (next === null ? ruler.end - curr : next - curr); - } - - if (next === null) { - // last data: its size is also double based on the previous point. - next = curr + curr - prev; - } - - start = curr - ((curr - prev) / 2) * percent; - size = ((next - prev) / 2) * percent; - - return { - chunk: size / ruler.stackCount, - ratio: options.barPercentage, - start: start - }; -} - -module.exports = function(Chart) { - - Chart.controllers.bar = Chart.DatasetController.extend({ - - dataElementType: elements.Rectangle, - - initialize: function() { - var me = this; - var meta; - - Chart.DatasetController.prototype.initialize.apply(me, arguments); - - meta = me.getMeta(); - meta.stack = me.getDataset().stack; - meta.bar = true; - }, - - update: function(reset) { - var me = this; - var rects = me.getMeta().data; - var i, ilen; - - me._ruler = me.getRuler(); - - for (i = 0, ilen = rects.length; i < ilen; ++i) { - me.updateElement(rects[i], i, reset); - } - }, - - updateElement: function(rectangle, index, reset) { - var me = this; - var chart = me.chart; - var meta = me.getMeta(); - var dataset = me.getDataset(); - var custom = rectangle.custom || {}; - var rectangleOptions = chart.options.elements.rectangle; - - rectangle._xScale = me.getScaleForId(meta.xAxisID); - rectangle._yScale = me.getScaleForId(meta.yAxisID); - rectangle._datasetIndex = me.index; - rectangle._index = index; - - rectangle._model = { - datasetLabel: dataset.label, - label: chart.data.labels[index], - borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped, - backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor), - borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor), - borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth) - }; - - me.updateElementGeometry(rectangle, index, reset); - - rectangle.pivot(); - }, - - /** - * @private - */ - updateElementGeometry: function(rectangle, index, reset) { - var me = this; - var model = rectangle._model; - var vscale = me.getValueScale(); - var base = vscale.getBasePixel(); - var horizontal = vscale.isHorizontal(); - var ruler = me._ruler || me.getRuler(); - var vpixels = me.calculateBarValuePixels(me.index, index); - var ipixels = me.calculateBarIndexPixels(me.index, index, ruler); - - model.horizontal = horizontal; - model.base = reset ? base : vpixels.base; - model.x = horizontal ? reset ? base : vpixels.head : ipixels.center; - model.y = horizontal ? ipixels.center : reset ? base : vpixels.head; - model.height = horizontal ? ipixels.size : undefined; - model.width = horizontal ? undefined : ipixels.size; - }, - - /** - * @private - */ - getValueScaleId: function() { - return this.getMeta().yAxisID; - }, - - /** - * @private - */ - getIndexScaleId: function() { - return this.getMeta().xAxisID; - }, - - /** - * @private - */ - getValueScale: function() { - return this.getScaleForId(this.getValueScaleId()); - }, - - /** - * @private - */ - getIndexScale: function() { - return this.getScaleForId(this.getIndexScaleId()); - }, - - /** - * Returns the stacks based on groups and bar visibility. - * @param {Number} [last] - The dataset index - * @returns {Array} The stack list - * @private - */ - _getStacks: function(last) { - var me = this; - var chart = me.chart; - var scale = me.getIndexScale(); - var stacked = scale.options.stacked; - var ilen = last === undefined ? chart.data.datasets.length : last + 1; - var stacks = []; - var i, meta; - - for (i = 0; i < ilen; ++i) { - meta = chart.getDatasetMeta(i); - if (meta.bar && chart.isDatasetVisible(i) && - (stacked === false || - (stacked === true && stacks.indexOf(meta.stack) === -1) || - (stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) { - stacks.push(meta.stack); - } - } - - return stacks; - }, - - /** - * Returns the effective number of stacks based on groups and bar visibility. - * @private - */ - getStackCount: function() { - return this._getStacks().length; - }, - - /** - * Returns the stack index for the given dataset based on groups and bar visibility. - * @param {Number} [datasetIndex] - The dataset index - * @param {String} [name] - The stack name to find - * @returns {Number} The stack index - * @private - */ - getStackIndex: function(datasetIndex, name) { - var stacks = this._getStacks(datasetIndex); - var index = (name !== undefined) - ? stacks.indexOf(name) - : -1; // indexOf returns -1 if element is not present - - return (index === -1) - ? stacks.length - 1 - : index; - }, - - /** - * @private - */ - getRuler: function() { - var me = this; - var scale = me.getIndexScale(); - var stackCount = me.getStackCount(); - var datasetIndex = me.index; - var isHorizontal = scale.isHorizontal(); - var start = isHorizontal ? scale.left : scale.top; - var end = start + (isHorizontal ? scale.width : scale.height); - var pixels = []; - var i, ilen, min; - - for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) { - pixels.push(scale.getPixelForValue(null, i, datasetIndex)); - } - - min = helpers.isNullOrUndef(scale.options.barThickness) - ? computeMinSampleSize(scale, pixels) - : -1; - - return { - min: min, - pixels: pixels, - start: start, - end: end, - stackCount: stackCount, - scale: scale - }; - }, - - /** - * Note: pixel values are not clamped to the scale area. - * @private - */ - calculateBarValuePixels: function(datasetIndex, index) { - var me = this; - var chart = me.chart; - var meta = me.getMeta(); - var scale = me.getValueScale(); - var datasets = chart.data.datasets; - var value = scale.getRightValue(datasets[datasetIndex].data[index]); - var stacked = scale.options.stacked; - var stack = meta.stack; - var start = 0; - var i, imeta, ivalue, base, head, size; - - if (stacked || (stacked === undefined && stack !== undefined)) { - for (i = 0; i < datasetIndex; ++i) { - imeta = chart.getDatasetMeta(i); - - if (imeta.bar && - imeta.stack === stack && - imeta.controller.getValueScaleId() === scale.id && - chart.isDatasetVisible(i)) { - - ivalue = scale.getRightValue(datasets[i].data[index]); - if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) { - start += ivalue; - } - } - } - } - - base = scale.getPixelForValue(start); - head = scale.getPixelForValue(start + value); - size = (head - base) / 2; - - return { - size: size, - base: base, - head: head, - center: head + size / 2 - }; - }, - - /** - * @private - */ - calculateBarIndexPixels: function(datasetIndex, index, ruler) { - var me = this; - var options = ruler.scale.options; - var range = options.barThickness === 'flex' - ? computeFlexCategoryTraits(index, ruler, options) - : computeFitCategoryTraits(index, ruler, options); - - var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack); - var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); - var size = Math.min( - helpers.valueOrDefault(options.maxBarThickness, Infinity), - range.chunk * range.ratio); - - return { - base: center - size / 2, - head: center + size / 2, - center: center, - size: size - }; - }, - - draw: function() { - var me = this; - var chart = me.chart; - var scale = me.getValueScale(); - var rects = me.getMeta().data; - var dataset = me.getDataset(); - var ilen = rects.length; - var i = 0; - - helpers.canvas.clipArea(chart.ctx, chart.chartArea); - - for (; i < ilen; ++i) { - if (!isNaN(scale.getRightValue(dataset.data[i]))) { - rects[i].draw(); - } - } - - helpers.canvas.unclipArea(chart.ctx); - }, - - setHoverStyle: function(rectangle) { - var dataset = this.chart.data.datasets[rectangle._datasetIndex]; - var index = rectangle._index; - var custom = rectangle.custom || {}; - var model = rectangle._model; - - model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor)); - model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(model.borderColor)); - model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.hoverBorderWidth, index, model.borderWidth); - }, - - removeHoverStyle: function(rectangle) { - var dataset = this.chart.data.datasets[rectangle._datasetIndex]; - var index = rectangle._index; - var custom = rectangle.custom || {}; - var model = rectangle._model; - var rectangleElementOptions = this.chart.options.elements.rectangle; - - model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor); - model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor); - model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth); - } - }); - - Chart.controllers.horizontalBar = Chart.controllers.bar.extend({ - /** - * @private - */ - getValueScaleId: function() { - return this.getMeta().xAxisID; - }, - - /** - * @private - */ - getIndexScaleId: function() { - return this.getMeta().yAxisID; - } - }); -}; - -},{"25":25,"40":40,"45":45}],16:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('bubble', { - hover: { - mode: 'single' - }, - - scales: { - xAxes: [{ - type: 'linear', // bubble should probably use a linear scale by default - position: 'bottom', - id: 'x-axis-0' // need an ID so datasets can reference the scale - }], - yAxes: [{ - type: 'linear', - position: 'left', - id: 'y-axis-0' - }] - }, - - tooltips: { - callbacks: { - title: function() { - // Title doesn't make sense for scatter since we format the data as a point - return ''; - }, - label: function(item, data) { - var datasetLabel = data.datasets[item.datasetIndex].label || ''; - var dataPoint = data.datasets[item.datasetIndex].data[item.index]; - return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')'; - } - } - } -}); - - -module.exports = function(Chart) { - - Chart.controllers.bubble = Chart.DatasetController.extend({ - /** - * @protected - */ - dataElementType: elements.Point, - - /** - * @protected - */ - update: function(reset) { - var me = this; - var meta = me.getMeta(); - var points = meta.data; - - // Update Points - helpers.each(points, function(point, index) { - me.updateElement(point, index, reset); - }); - }, - - /** - * @protected - */ - updateElement: function(point, index, reset) { - var me = this; - var meta = me.getMeta(); - var custom = point.custom || {}; - var xScale = me.getScaleForId(meta.xAxisID); - var yScale = me.getScaleForId(meta.yAxisID); - var options = me._resolveElementOptions(point, index); - var data = me.getDataset().data[index]; - var dsIndex = me.index; - - var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex); - var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex); - - point._xScale = xScale; - point._yScale = yScale; - point._options = options; - point._datasetIndex = dsIndex; - point._index = index; - point._model = { - backgroundColor: options.backgroundColor, - borderColor: options.borderColor, - borderWidth: options.borderWidth, - hitRadius: options.hitRadius, - pointStyle: options.pointStyle, - radius: reset ? 0 : options.radius, - skip: custom.skip || isNaN(x) || isNaN(y), - x: x, - y: y, - }; - - point.pivot(); - }, - - /** - * @protected - */ - setHoverStyle: function(point) { - var model = point._model; - var options = point._options; - - model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor)); - model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor)); - model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth); - model.radius = options.radius + options.hoverRadius; - }, - - /** - * @protected - */ - removeHoverStyle: function(point) { - var model = point._model; - var options = point._options; - - model.backgroundColor = options.backgroundColor; - model.borderColor = options.borderColor; - model.borderWidth = options.borderWidth; - model.radius = options.radius; - }, - - /** - * @private - */ - _resolveElementOptions: function(point, index) { - var me = this; - var chart = me.chart; - var datasets = chart.data.datasets; - var dataset = datasets[me.index]; - var custom = point.custom || {}; - var options = chart.options.elements.point; - var resolve = helpers.options.resolve; - var data = dataset.data[index]; - var values = {}; - var i, ilen, key; - - // Scriptable options - var context = { - chart: chart, - dataIndex: index, - dataset: dataset, - datasetIndex: me.index - }; - - var keys = [ - 'backgroundColor', - 'borderColor', - 'borderWidth', - 'hoverBackgroundColor', - 'hoverBorderColor', - 'hoverBorderWidth', - 'hoverRadius', - 'hitRadius', - 'pointStyle' - ]; - - for (i = 0, ilen = keys.length; i < ilen; ++i) { - key = keys[i]; - values[key] = resolve([ - custom[key], - dataset[key], - options[key] - ], context, index); - } - - // Custom radius resolution - values.radius = resolve([ - custom.radius, - data ? data.r : undefined, - dataset.radius, - options.radius - ], context, index); - - return values; - } - }); -}; - -},{"25":25,"40":40,"45":45}],17:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('doughnut', { - animation: { - // Boolean - Whether we animate the rotation of the Doughnut - animateRotate: true, - // Boolean - Whether we animate scaling the Doughnut from the centre - animateScale: false - }, - hover: { - mode: 'single' - }, - legendCallback: function(chart) { - var text = []; - text.push(''); - return text.join(''); - }, - legend: { - labels: { - generateLabels: function(chart) { - var data = chart.data; - if (data.labels.length && data.datasets.length) { - return data.labels.map(function(label, i) { - var meta = chart.getDatasetMeta(0); - var ds = data.datasets[0]; - var arc = meta.data[i]; - var custom = arc && arc.custom || {}; - var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault; - var arcOpts = chart.options.elements.arc; - var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor); - var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor); - var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth); - - return { - text: label, - fillStyle: fill, - strokeStyle: stroke, - lineWidth: bw, - hidden: isNaN(ds.data[i]) || meta.data[i].hidden, - - // Extra data used for toggling the correct item - index: i - }; - }); - } - return []; - } - }, - - onClick: function(e, legendItem) { - var index = legendItem.index; - var chart = this.chart; - var i, ilen, meta; - - for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { - meta = chart.getDatasetMeta(i); - // toggle visibility of index if exists - if (meta.data[index]) { - meta.data[index].hidden = !meta.data[index].hidden; - } - } - - chart.update(); - } - }, - - // The percentage of the chart that we cut out of the middle. - cutoutPercentage: 50, - - // The rotation of the chart, where the first data arc begins. - rotation: Math.PI * -0.5, - - // The total circumference of the chart. - circumference: Math.PI * 2.0, - - // Need to override these to give a nice default - tooltips: { - callbacks: { - title: function() { - return ''; - }, - label: function(tooltipItem, data) { - var dataLabel = data.labels[tooltipItem.index]; - var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; - - if (helpers.isArray(dataLabel)) { - // show value on first line of multiline label - // need to clone because we are changing the value - dataLabel = dataLabel.slice(); - dataLabel[0] += value; - } else { - dataLabel += value; - } - - return dataLabel; - } - } - } -}); - -defaults._set('pie', helpers.clone(defaults.doughnut)); -defaults._set('pie', { - cutoutPercentage: 0 -}); - -module.exports = function(Chart) { - - Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({ - - dataElementType: elements.Arc, - - linkScales: helpers.noop, - - // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly - getRingIndex: function(datasetIndex) { - var ringIndex = 0; - - for (var j = 0; j < datasetIndex; ++j) { - if (this.chart.isDatasetVisible(j)) { - ++ringIndex; - } - } - - return ringIndex; - }, - - update: function(reset) { - var me = this; - var chart = me.chart; - var chartArea = chart.chartArea; - var opts = chart.options; - var arcOpts = opts.elements.arc; - var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth; - var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth; - var minSize = Math.min(availableWidth, availableHeight); - var offset = {x: 0, y: 0}; - var meta = me.getMeta(); - var cutoutPercentage = opts.cutoutPercentage; - var circumference = opts.circumference; - - // If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc - if (circumference < Math.PI * 2.0) { - var startAngle = opts.rotation % (Math.PI * 2.0); - startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0); - var endAngle = startAngle + circumference; - var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)}; - var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)}; - var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle); - var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle); - var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle); - var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle); - var cutout = cutoutPercentage / 100.0; - var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))}; - var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))}; - var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5}; - minSize = Math.min(availableWidth / size.width, availableHeight / size.height); - offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5}; - } - - chart.borderWidth = me.getMaxBorderWidth(meta.data); - chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0); - chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0); - chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount(); - chart.offsetX = offset.x * chart.outerRadius; - chart.offsetY = offset.y * chart.outerRadius; - - meta.total = me.calculateTotal(); - - me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index)); - me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0); - - helpers.each(meta.data, function(arc, index) { - me.updateElement(arc, index, reset); - }); - }, - - updateElement: function(arc, index, reset) { - var me = this; - var chart = me.chart; - var chartArea = chart.chartArea; - var opts = chart.options; - var animationOpts = opts.animation; - var centerX = (chartArea.left + chartArea.right) / 2; - var centerY = (chartArea.top + chartArea.bottom) / 2; - var startAngle = opts.rotation; // non reset case handled later - var endAngle = opts.rotation; // non reset case handled later - var dataset = me.getDataset(); - var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI)); - var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius; - var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius; - var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault; - - helpers.extend(arc, { - // Utility - _datasetIndex: me.index, - _index: index, - - // Desired view properties - _model: { - x: centerX + chart.offsetX, - y: centerY + chart.offsetY, - startAngle: startAngle, - endAngle: endAngle, - circumference: circumference, - outerRadius: outerRadius, - innerRadius: innerRadius, - label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index]) - } - }); - - var model = arc._model; - // Resets the visual styles - this.removeHoverStyle(arc); - - // Set correct angles if not resetting - if (!reset || !animationOpts.animateRotate) { - if (index === 0) { - model.startAngle = opts.rotation; - } else { - model.startAngle = me.getMeta().data[index - 1]._model.endAngle; - } - - model.endAngle = model.startAngle + model.circumference; - } - - arc.pivot(); - }, - - removeHoverStyle: function(arc) { - Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc); - }, - - calculateTotal: function() { - var dataset = this.getDataset(); - var meta = this.getMeta(); - var total = 0; - var value; - - helpers.each(meta.data, function(element, index) { - value = dataset.data[index]; - if (!isNaN(value) && !element.hidden) { - total += Math.abs(value); - } - }); - - /* if (total === 0) { - total = NaN; - }*/ - - return total; - }, - - calculateCircumference: function(value) { - var total = this.getMeta().total; - if (total > 0 && !isNaN(value)) { - return (Math.PI * 2.0) * (Math.abs(value) / total); - } - return 0; - }, - - // gets the max border or hover width to properly scale pie charts - getMaxBorderWidth: function(arcs) { - var max = 0; - var index = this.index; - var length = arcs.length; - var borderWidth; - var hoverWidth; - - for (var i = 0; i < length; i++) { - borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0; - hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0; - - max = borderWidth > max ? borderWidth : max; - max = hoverWidth > max ? hoverWidth : max; - } - return max; - } - }); -}; - -},{"25":25,"40":40,"45":45}],18:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('line', { - showLines: true, - spanGaps: false, - - hover: { - mode: 'label' - }, - - scales: { - xAxes: [{ - type: 'category', - id: 'x-axis-0' - }], - yAxes: [{ - type: 'linear', - id: 'y-axis-0' - }] - } -}); - -module.exports = function(Chart) { - - function lineEnabled(dataset, options) { - return helpers.valueOrDefault(dataset.showLine, options.showLines); - } - - Chart.controllers.line = Chart.DatasetController.extend({ - - datasetElementType: elements.Line, - - dataElementType: elements.Point, - - update: function(reset) { - var me = this; - var meta = me.getMeta(); - var line = meta.dataset; - var points = meta.data || []; - var options = me.chart.options; - var lineElementOptions = options.elements.line; - var scale = me.getScaleForId(meta.yAxisID); - var i, ilen, custom; - var dataset = me.getDataset(); - var showLine = lineEnabled(dataset, options); - - // Update Line - if (showLine) { - custom = line.custom || {}; - - // Compatibility: If the properties are defined with only the old name, use those values - if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) { - dataset.lineTension = dataset.tension; - } - - // Utility - line._scale = scale; - line._datasetIndex = me.index; - // Data - line._children = points; - // Model - line._model = { - // Appearance - // The default behavior of lines is to break at null values, according - // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158 - // This option gives lines the ability to span gaps - spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps, - tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension), - backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor), - borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth), - borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor), - borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle), - borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash), - borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset), - borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle), - fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill), - steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped), - cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode), - }; - - line.pivot(); - } - - // Update Points - for (i = 0, ilen = points.length; i < ilen; ++i) { - me.updateElement(points[i], i, reset); - } - - if (showLine && line._model.tension !== 0) { - me.updateBezierControlPoints(); - } - - // Now pivot the point for animation - for (i = 0, ilen = points.length; i < ilen; ++i) { - points[i].pivot(); - } - }, - - getPointBackgroundColor: function(point, index) { - var backgroundColor = this.chart.options.elements.point.backgroundColor; - var dataset = this.getDataset(); - var custom = point.custom || {}; - - if (custom.backgroundColor) { - backgroundColor = custom.backgroundColor; - } else if (dataset.pointBackgroundColor) { - backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor); - } else if (dataset.backgroundColor) { - backgroundColor = dataset.backgroundColor; - } - - return backgroundColor; - }, - - getPointBorderColor: function(point, index) { - var borderColor = this.chart.options.elements.point.borderColor; - var dataset = this.getDataset(); - var custom = point.custom || {}; - - if (custom.borderColor) { - borderColor = custom.borderColor; - } else if (dataset.pointBorderColor) { - borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor); - } else if (dataset.borderColor) { - borderColor = dataset.borderColor; - } - - return borderColor; - }, - - getPointBorderWidth: function(point, index) { - var borderWidth = this.chart.options.elements.point.borderWidth; - var dataset = this.getDataset(); - var custom = point.custom || {}; - - if (!isNaN(custom.borderWidth)) { - borderWidth = custom.borderWidth; - } else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) { - borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth); - } else if (!isNaN(dataset.borderWidth)) { - borderWidth = dataset.borderWidth; - } - - return borderWidth; - }, - - updateElement: function(point, index, reset) { - var me = this; - var meta = me.getMeta(); - var custom = point.custom || {}; - var dataset = me.getDataset(); - var datasetIndex = me.index; - var value = dataset.data[index]; - var yScale = me.getScaleForId(meta.yAxisID); - var xScale = me.getScaleForId(meta.xAxisID); - var pointOptions = me.chart.options.elements.point; - var x, y; - - // Compatibility: If the properties are defined with only the old name, use those values - if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) { - dataset.pointRadius = dataset.radius; - } - if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) { - dataset.pointHitRadius = dataset.hitRadius; - } - - x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex); - y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex); - - // Utility - point._xScale = xScale; - point._yScale = yScale; - point._datasetIndex = datasetIndex; - point._index = index; - - // Desired view properties - point._model = { - x: x, - y: y, - skip: custom.skip || isNaN(x) || isNaN(y), - // Appearance - radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius), - pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle), - backgroundColor: me.getPointBackgroundColor(point, index), - borderColor: me.getPointBorderColor(point, index), - borderWidth: me.getPointBorderWidth(point, index), - tension: meta.dataset._model ? meta.dataset._model.tension : 0, - steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false, - // Tooltip - hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius) - }; - }, - - calculatePointY: function(value, index, datasetIndex) { - var me = this; - var chart = me.chart; - var meta = me.getMeta(); - var yScale = me.getScaleForId(meta.yAxisID); - var sumPos = 0; - var sumNeg = 0; - var i, ds, dsMeta; - - if (yScale.options.stacked) { - for (i = 0; i < datasetIndex; i++) { - ds = chart.data.datasets[i]; - dsMeta = chart.getDatasetMeta(i); - if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) { - var stackedRightValue = Number(yScale.getRightValue(ds.data[index])); - if (stackedRightValue < 0) { - sumNeg += stackedRightValue || 0; - } else { - sumPos += stackedRightValue || 0; - } - } - } - - var rightValue = Number(yScale.getRightValue(value)); - if (rightValue < 0) { - return yScale.getPixelForValue(sumNeg + rightValue); - } - return yScale.getPixelForValue(sumPos + rightValue); - } - - return yScale.getPixelForValue(value); - }, - - updateBezierControlPoints: function() { - var me = this; - var meta = me.getMeta(); - var area = me.chart.chartArea; - var points = (meta.data || []); - var i, ilen, point, model, controlPoints; - - // Only consider points that are drawn in case the spanGaps option is used - if (meta.dataset._model.spanGaps) { - points = points.filter(function(pt) { - return !pt._model.skip; - }); - } - - function capControlPoint(pt, min, max) { - return Math.max(Math.min(pt, max), min); - } - - if (meta.dataset._model.cubicInterpolationMode === 'monotone') { - helpers.splineCurveMonotone(points); - } else { - for (i = 0, ilen = points.length; i < ilen; ++i) { - point = points[i]; - model = point._model; - controlPoints = helpers.splineCurve( - helpers.previousItem(points, i)._model, - model, - helpers.nextItem(points, i)._model, - meta.dataset._model.tension - ); - model.controlPointPreviousX = controlPoints.previous.x; - model.controlPointPreviousY = controlPoints.previous.y; - model.controlPointNextX = controlPoints.next.x; - model.controlPointNextY = controlPoints.next.y; - } - } - - if (me.chart.options.elements.line.capBezierPoints) { - for (i = 0, ilen = points.length; i < ilen; ++i) { - model = points[i]._model; - model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right); - model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom); - model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right); - model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom); - } - } - }, - - draw: function() { - var me = this; - var chart = me.chart; - var meta = me.getMeta(); - var points = meta.data || []; - var area = chart.chartArea; - var ilen = points.length; - var i = 0; - - helpers.canvas.clipArea(chart.ctx, area); - - if (lineEnabled(me.getDataset(), chart.options)) { - meta.dataset.draw(); - } - - helpers.canvas.unclipArea(chart.ctx); - - // Draw the points - for (; i < ilen; ++i) { - points[i].draw(area); - } - }, - - setHoverStyle: function(point) { - // Point - var dataset = this.chart.data.datasets[point._datasetIndex]; - var index = point._index; - var custom = point.custom || {}; - var model = point._model; - - model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); - model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor)); - model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor)); - model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth); - }, - - removeHoverStyle: function(point) { - var me = this; - var dataset = me.chart.data.datasets[point._datasetIndex]; - var index = point._index; - var custom = point.custom || {}; - var model = point._model; - - // Compatibility: If the properties are defined with only the old name, use those values - if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) { - dataset.pointRadius = dataset.radius; - } - - model.radius = custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, me.chart.options.elements.point.radius); - model.backgroundColor = me.getPointBackgroundColor(point, index); - model.borderColor = me.getPointBorderColor(point, index); - model.borderWidth = me.getPointBorderWidth(point, index); - } - }); -}; - -},{"25":25,"40":40,"45":45}],19:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('polarArea', { - scale: { - type: 'radialLinear', - angleLines: { - display: false - }, - gridLines: { - circular: true - }, - pointLabels: { - display: false - }, - ticks: { - beginAtZero: true - } - }, - - // Boolean - Whether to animate the rotation of the chart - animation: { - animateRotate: true, - animateScale: true - }, - - startAngle: -0.5 * Math.PI, - legendCallback: function(chart) { - var text = []; - text.push(''); - return text.join(''); - }, - legend: { - labels: { - generateLabels: function(chart) { - var data = chart.data; - if (data.labels.length && data.datasets.length) { - return data.labels.map(function(label, i) { - var meta = chart.getDatasetMeta(0); - var ds = data.datasets[0]; - var arc = meta.data[i]; - var custom = arc.custom || {}; - var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault; - var arcOpts = chart.options.elements.arc; - var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor); - var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor); - var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth); - - return { - text: label, - fillStyle: fill, - strokeStyle: stroke, - lineWidth: bw, - hidden: isNaN(ds.data[i]) || meta.data[i].hidden, - - // Extra data used for toggling the correct item - index: i - }; - }); - } - return []; - } - }, - - onClick: function(e, legendItem) { - var index = legendItem.index; - var chart = this.chart; - var i, ilen, meta; - - for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { - meta = chart.getDatasetMeta(i); - meta.data[index].hidden = !meta.data[index].hidden; - } - - chart.update(); - } - }, - - // Need to override these to give a nice default - tooltips: { - callbacks: { - title: function() { - return ''; - }, - label: function(item, data) { - return data.labels[item.index] + ': ' + item.yLabel; - } - } - } -}); - -module.exports = function(Chart) { - - Chart.controllers.polarArea = Chart.DatasetController.extend({ - - dataElementType: elements.Arc, - - linkScales: helpers.noop, - - update: function(reset) { - var me = this; - var chart = me.chart; - var chartArea = chart.chartArea; - var meta = me.getMeta(); - var opts = chart.options; - var arcOpts = opts.elements.arc; - var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); - chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0); - chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); - chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount(); - - me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index); - me.innerRadius = me.outerRadius - chart.radiusLength; - - meta.count = me.countVisibleElements(); - - helpers.each(meta.data, function(arc, index) { - me.updateElement(arc, index, reset); - }); - }, - - updateElement: function(arc, index, reset) { - var me = this; - var chart = me.chart; - var dataset = me.getDataset(); - var opts = chart.options; - var animationOpts = opts.animation; - var scale = chart.scale; - var labels = chart.data.labels; - - var circumference = me.calculateCircumference(dataset.data[index]); - var centerX = scale.xCenter; - var centerY = scale.yCenter; - - // If there is NaN data before us, we need to calculate the starting angle correctly. - // We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data - var visibleCount = 0; - var meta = me.getMeta(); - for (var i = 0; i < index; ++i) { - if (!isNaN(dataset.data[i]) && !meta.data[i].hidden) { - ++visibleCount; - } - } - - // var negHalfPI = -0.5 * Math.PI; - var datasetStartAngle = opts.startAngle; - var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); - var startAngle = datasetStartAngle + (circumference * visibleCount); - var endAngle = startAngle + (arc.hidden ? 0 : circumference); - - var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); - - helpers.extend(arc, { - // Utility - _datasetIndex: me.index, - _index: index, - _scale: scale, - - // Desired view properties - _model: { - x: centerX, - y: centerY, - innerRadius: 0, - outerRadius: reset ? resetRadius : distance, - startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle, - endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle, - label: helpers.valueAtIndexOrDefault(labels, index, labels[index]) - } - }); - - // Apply border and fill style - me.removeHoverStyle(arc); - - arc.pivot(); - }, - - removeHoverStyle: function(arc) { - Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc); - }, - - countVisibleElements: function() { - var dataset = this.getDataset(); - var meta = this.getMeta(); - var count = 0; - - helpers.each(meta.data, function(element, index) { - if (!isNaN(dataset.data[index]) && !element.hidden) { - count++; - } - }); - - return count; - }, - - calculateCircumference: function(value) { - var count = this.getMeta().count; - if (count > 0 && !isNaN(value)) { - return (2 * Math.PI) / count; - } - return 0; - } - }); -}; - -},{"25":25,"40":40,"45":45}],20:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var elements = require(40); -var helpers = require(45); - -defaults._set('radar', { - scale: { - type: 'radialLinear' - }, - elements: { - line: { - tension: 0 // no bezier in radar - } - } -}); - -module.exports = function(Chart) { - - Chart.controllers.radar = Chart.DatasetController.extend({ - - datasetElementType: elements.Line, - - dataElementType: elements.Point, - - linkScales: helpers.noop, - - update: function(reset) { - var me = this; - var meta = me.getMeta(); - var line = meta.dataset; - var points = meta.data; - var custom = line.custom || {}; - var dataset = me.getDataset(); - var lineElementOptions = me.chart.options.elements.line; - var scale = me.chart.scale; - - // Compatibility: If the properties are defined with only the old name, use those values - if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) { - dataset.lineTension = dataset.tension; - } - - helpers.extend(meta.dataset, { - // Utility - _datasetIndex: me.index, - _scale: scale, - // Data - _children: points, - _loop: true, - // Model - _model: { - // Appearance - tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension), - backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor), - borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth), - borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor), - fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill), - borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle), - borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash), - borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset), - borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle), - } - }); - - meta.dataset.pivot(); - - // Update Points - helpers.each(points, function(point, index) { - me.updateElement(point, index, reset); - }, me); - - // Update bezier control points - me.updateBezierControlPoints(); - }, - updateElement: function(point, index, reset) { - var me = this; - var custom = point.custom || {}; - var dataset = me.getDataset(); - var scale = me.chart.scale; - var pointElementOptions = me.chart.options.elements.point; - var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]); - - // Compatibility: If the properties are defined with only the old name, use those values - if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) { - dataset.pointRadius = dataset.radius; - } - if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) { - dataset.pointHitRadius = dataset.hitRadius; - } - - helpers.extend(point, { - // Utility - _datasetIndex: me.index, - _index: index, - _scale: scale, - - // Desired view properties - _model: { - x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales - y: reset ? scale.yCenter : pointPosition.y, - - // Appearance - tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension), - radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius), - backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor), - borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor), - borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth), - pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle), - - // Tooltip - hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius) - } - }); - - point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y)); - }, - updateBezierControlPoints: function() { - var chartArea = this.chart.chartArea; - var meta = this.getMeta(); - - helpers.each(meta.data, function(point, index) { - var model = point._model; - var controlPoints = helpers.splineCurve( - helpers.previousItem(meta.data, index, true)._model, - model, - helpers.nextItem(meta.data, index, true)._model, - model.tension - ); - - // Prevent the bezier going outside of the bounds of the graph - model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left); - model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top); - - model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left); - model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top); - - // Now pivot the point for animation - point.pivot(); - }); - }, - - setHoverStyle: function(point) { - // Point - var dataset = this.chart.data.datasets[point._datasetIndex]; - var custom = point.custom || {}; - var index = point._index; - var model = point._model; - - model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius); - model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor)); - model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor)); - model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth); - }, - - removeHoverStyle: function(point) { - var dataset = this.chart.data.datasets[point._datasetIndex]; - var custom = point.custom || {}; - var index = point._index; - var model = point._model; - var pointElementOptions = this.chart.options.elements.point; - - model.radius = custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius); - model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor); - model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor); - model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth); - } - }); -}; - -},{"25":25,"40":40,"45":45}],21:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); - -defaults._set('scatter', { - hover: { - mode: 'single' - }, - - scales: { - xAxes: [{ - id: 'x-axis-1', // need an ID so datasets can reference the scale - type: 'linear', // scatter should not use a category axis - position: 'bottom' - }], - yAxes: [{ - id: 'y-axis-1', - type: 'linear', - position: 'left' - }] - }, - - showLines: false, - - tooltips: { - callbacks: { - title: function() { - return ''; // doesn't make sense for scatter since data are formatted as a point - }, - label: function(item) { - return '(' + item.xLabel + ', ' + item.yLabel + ')'; - } - } - } -}); - -module.exports = function(Chart) { - - // Scatter charts use line controllers - Chart.controllers.scatter = Chart.controllers.line; - -}; - -},{"25":25}],22:[function(require,module,exports){ -/* global window: false */ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); - -defaults._set('global', { - animation: { - duration: 1000, - easing: 'easeOutQuart', - onProgress: helpers.noop, - onComplete: helpers.noop - } -}); - -module.exports = function(Chart) { - - Chart.Animation = Element.extend({ - chart: null, // the animation associated chart instance - currentStep: 0, // the current animation step - numSteps: 60, // default number of steps - easing: '', // the easing to use for this animation - render: null, // render function used by the animation service - - onAnimationProgress: null, // user specified callback to fire on each step of the animation - onAnimationComplete: null, // user specified callback to fire when the animation finishes - }); - - Chart.animationService = { - frameDuration: 17, - animations: [], - dropFrames: 0, - request: null, - - /** - * @param {Chart} chart - The chart to animate. - * @param {Chart.Animation} animation - The animation that we will animate. - * @param {Number} duration - The animation duration in ms. - * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions - */ - addAnimation: function(chart, animation, duration, lazy) { - var animations = this.animations; - var i, ilen; - - animation.chart = chart; - - if (!lazy) { - chart.animating = true; - } - - for (i = 0, ilen = animations.length; i < ilen; ++i) { - if (animations[i].chart === chart) { - animations[i] = animation; - return; - } - } - - animations.push(animation); - - // If there are no animations queued, manually kickstart a digest, for lack of a better word - if (animations.length === 1) { - this.requestAnimationFrame(); - } - }, - - cancelAnimation: function(chart) { - var index = helpers.findIndex(this.animations, function(animation) { - return animation.chart === chart; - }); - - if (index !== -1) { - this.animations.splice(index, 1); - chart.animating = false; - } - }, - - requestAnimationFrame: function() { - var me = this; - if (me.request === null) { - // Skip animation frame requests until the active one is executed. - // This can happen when processing mouse events, e.g. 'mousemove' - // and 'mouseout' events will trigger multiple renders. - me.request = helpers.requestAnimFrame.call(window, function() { - me.request = null; - me.startDigest(); - }); - } - }, - - /** - * @private - */ - startDigest: function() { - var me = this; - var startTime = Date.now(); - var framesToDrop = 0; - - if (me.dropFrames > 1) { - framesToDrop = Math.floor(me.dropFrames); - me.dropFrames = me.dropFrames % 1; - } - - me.advance(1 + framesToDrop); - - var endTime = Date.now(); - - me.dropFrames += (endTime - startTime) / me.frameDuration; - - // Do we have more stuff to animate? - if (me.animations.length > 0) { - me.requestAnimationFrame(); - } - }, - - /** - * @private - */ - advance: function(count) { - var animations = this.animations; - var animation, chart; - var i = 0; - - while (i < animations.length) { - animation = animations[i]; - chart = animation.chart; - - animation.currentStep = (animation.currentStep || 0) + count; - animation.currentStep = Math.min(animation.currentStep, animation.numSteps); - - helpers.callback(animation.render, [chart, animation], chart); - helpers.callback(animation.onAnimationProgress, [animation], chart); - - if (animation.currentStep >= animation.numSteps) { - helpers.callback(animation.onAnimationComplete, [animation], chart); - chart.animating = false; - animations.splice(i, 1); - } else { - ++i; - } - } - } - }; - - /** - * Provided for backward compatibility, use Chart.Animation instead - * @prop Chart.Animation#animationObject - * @deprecated since version 2.6.0 - * @todo remove at version 3 - */ - Object.defineProperty(Chart.Animation.prototype, 'animationObject', { - get: function() { - return this; - } - }); - - /** - * Provided for backward compatibility, use Chart.Animation#chart instead - * @prop Chart.Animation#chartInstance - * @deprecated since version 2.6.0 - * @todo remove at version 3 - */ - Object.defineProperty(Chart.Animation.prototype, 'chartInstance', { - get: function() { - return this.chart; - }, - set: function(value) { - this.chart = value; - } - }); - -}; - -},{"25":25,"26":26,"45":45}],23:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var helpers = require(45); -var Interaction = require(28); -var layouts = require(30); -var platform = require(48); -var plugins = require(31); - -module.exports = function(Chart) { - - // Create a dictionary of chart types, to allow for extension of existing types - Chart.types = {}; - - // Store a reference to each instance - allowing us to globally resize chart instances on window resize. - // Destroy method on the chart will remove the instance of the chart from this reference. - Chart.instances = {}; - - // Controllers available for dataset visualization eg. bar, line, slice, etc. - Chart.controllers = {}; - - /** - * Initializes the given config with global and chart default values. - */ - function initConfig(config) { - config = config || {}; - - // Do NOT use configMerge() for the data object because this method merges arrays - // and so would change references to labels and datasets, preventing data updates. - var data = config.data = config.data || {}; - data.datasets = data.datasets || []; - data.labels = data.labels || []; - - config.options = helpers.configMerge( - defaults.global, - defaults[config.type], - config.options || {}); - - return config; - } - - /** - * Updates the config of the chart - * @param chart {Chart} chart to update the options for - */ - function updateConfig(chart) { - var newOptions = chart.options; - - helpers.each(chart.scales, function(scale) { - layouts.removeBox(chart, scale); - }); - - newOptions = helpers.configMerge( - Chart.defaults.global, - Chart.defaults[chart.config.type], - newOptions); - - chart.options = chart.config.options = newOptions; - chart.ensureScalesHaveIDs(); - chart.buildOrUpdateScales(); - // Tooltip - chart.tooltip._options = newOptions.tooltips; - chart.tooltip.initialize(); - } - - function positionIsHorizontal(position) { - return position === 'top' || position === 'bottom'; - } - - helpers.extend(Chart.prototype, /** @lends Chart */ { - /** - * @private - */ - construct: function(item, config) { - var me = this; - - config = initConfig(config); - - var context = platform.acquireContext(item, config); - var canvas = context && context.canvas; - var height = canvas && canvas.height; - var width = canvas && canvas.width; - - me.id = helpers.uid(); - me.ctx = context; - me.canvas = canvas; - me.config = config; - me.width = width; - me.height = height; - me.aspectRatio = height ? width / height : null; - me.options = config.options; - me._bufferedRender = false; - - /** - * Provided for backward compatibility, Chart and Chart.Controller have been merged, - * the "instance" still need to be defined since it might be called from plugins. - * @prop Chart#chart - * @deprecated since version 2.6.0 - * @todo remove at version 3 - * @private - */ - me.chart = me; - me.controller = me; // chart.chart.controller #inception - - // Add the chart instance to the global namespace - Chart.instances[me.id] = me; - - // Define alias to the config data: `chart.data === chart.config.data` - Object.defineProperty(me, 'data', { - get: function() { - return me.config.data; - }, - set: function(value) { - me.config.data = value; - } - }); - - if (!context || !canvas) { - // The given item is not a compatible context2d element, let's return before finalizing - // the chart initialization but after setting basic chart / controller properties that - // can help to figure out that the chart is not valid (e.g chart.canvas !== null); - // https://github.com/chartjs/Chart.js/issues/2807 - console.error("Failed to create chart: can't acquire context from the given item"); - return; - } - - me.initialize(); - me.update(); - }, - - /** - * @private - */ - initialize: function() { - var me = this; - - // Before init plugin notification - plugins.notify(me, 'beforeInit'); - - helpers.retinaScale(me, me.options.devicePixelRatio); - - me.bindEvents(); - - if (me.options.responsive) { - // Initial resize before chart draws (must be silent to preserve initial animations). - me.resize(true); - } - - // Make sure scales have IDs and are built before we build any controllers. - me.ensureScalesHaveIDs(); - me.buildOrUpdateScales(); - me.initToolTip(); - - // After init plugin notification - plugins.notify(me, 'afterInit'); - - return me; - }, - - clear: function() { - helpers.canvas.clear(this); - return this; - }, - - stop: function() { - // Stops any current animation loop occurring - Chart.animationService.cancelAnimation(this); - return this; - }, - - resize: function(silent) { - var me = this; - var options = me.options; - var canvas = me.canvas; - var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null; - - // the canvas render width and height will be casted to integers so make sure that - // the canvas display style uses the same integer values to avoid blurring effect. - - // Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collased - var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas))); - var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas))); - - if (me.width === newWidth && me.height === newHeight) { - return; - } - - canvas.width = me.width = newWidth; - canvas.height = me.height = newHeight; - canvas.style.width = newWidth + 'px'; - canvas.style.height = newHeight + 'px'; - - helpers.retinaScale(me, options.devicePixelRatio); - - if (!silent) { - // Notify any plugins about the resize - var newSize = {width: newWidth, height: newHeight}; - plugins.notify(me, 'resize', [newSize]); - - // Notify of resize - if (me.options.onResize) { - me.options.onResize(me, newSize); - } - - me.stop(); - me.update(me.options.responsiveAnimationDuration); - } - }, - - ensureScalesHaveIDs: function() { - var options = this.options; - var scalesOptions = options.scales || {}; - var scaleOptions = options.scale; - - helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) { - xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index); - }); - - helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) { - yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index); - }); - - if (scaleOptions) { - scaleOptions.id = scaleOptions.id || 'scale'; - } - }, - - /** - * Builds a map of scale ID to scale object for future lookup. - */ - buildOrUpdateScales: function() { - var me = this; - var options = me.options; - var scales = me.scales || {}; - var items = []; - var updated = Object.keys(scales).reduce(function(obj, id) { - obj[id] = false; - return obj; - }, {}); - - if (options.scales) { - items = items.concat( - (options.scales.xAxes || []).map(function(xAxisOptions) { - return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'}; - }), - (options.scales.yAxes || []).map(function(yAxisOptions) { - return {options: yAxisOptions, dtype: 'linear', dposition: 'left'}; - }) - ); - } - - if (options.scale) { - items.push({ - options: options.scale, - dtype: 'radialLinear', - isDefault: true, - dposition: 'chartArea' - }); - } - - helpers.each(items, function(item) { - var scaleOptions = item.options; - var id = scaleOptions.id; - var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype); - - if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) { - scaleOptions.position = item.dposition; - } - - updated[id] = true; - var scale = null; - if (id in scales && scales[id].type === scaleType) { - scale = scales[id]; - scale.options = scaleOptions; - scale.ctx = me.ctx; - scale.chart = me; - } else { - var scaleClass = Chart.scaleService.getScaleConstructor(scaleType); - if (!scaleClass) { - return; - } - scale = new scaleClass({ - id: id, - type: scaleType, - options: scaleOptions, - ctx: me.ctx, - chart: me - }); - scales[scale.id] = scale; - } - - scale.mergeTicksOptions(); - - // TODO(SB): I think we should be able to remove this custom case (options.scale) - // and consider it as a regular scale part of the "scales"" map only! This would - // make the logic easier and remove some useless? custom code. - if (item.isDefault) { - me.scale = scale; - } - }); - // clear up discarded scales - helpers.each(updated, function(hasUpdated, id) { - if (!hasUpdated) { - delete scales[id]; - } - }); - - me.scales = scales; - - Chart.scaleService.addScalesToLayout(this); - }, - - buildOrUpdateControllers: function() { - var me = this; - var types = []; - var newControllers = []; - - helpers.each(me.data.datasets, function(dataset, datasetIndex) { - var meta = me.getDatasetMeta(datasetIndex); - var type = dataset.type || me.config.type; - - if (meta.type && meta.type !== type) { - me.destroyDatasetMeta(datasetIndex); - meta = me.getDatasetMeta(datasetIndex); - } - meta.type = type; - - types.push(meta.type); - - if (meta.controller) { - meta.controller.updateIndex(datasetIndex); - meta.controller.linkScales(); - } else { - var ControllerClass = Chart.controllers[meta.type]; - if (ControllerClass === undefined) { - throw new Error('"' + meta.type + '" is not a chart type.'); - } - - meta.controller = new ControllerClass(me, datasetIndex); - newControllers.push(meta.controller); - } - }, me); - - return newControllers; - }, - - /** - * Reset the elements of all datasets - * @private - */ - resetElements: function() { - var me = this; - helpers.each(me.data.datasets, function(dataset, datasetIndex) { - me.getDatasetMeta(datasetIndex).controller.reset(); - }, me); - }, - - /** - * Resets the chart back to it's state before the initial animation - */ - reset: function() { - this.resetElements(); - this.tooltip.initialize(); - }, - - update: function(config) { - var me = this; - - if (!config || typeof config !== 'object') { - // backwards compatibility - config = { - duration: config, - lazy: arguments[1] - }; - } - - updateConfig(me); - - // plugins options references might have change, let's invalidate the cache - // https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167 - plugins._invalidate(me); - - if (plugins.notify(me, 'beforeUpdate') === false) { - return; - } - - // In case the entire data object changed - me.tooltip._data = me.data; - - // Make sure dataset controllers are updated and new controllers are reset - var newControllers = me.buildOrUpdateControllers(); - - // Make sure all dataset controllers have correct meta data counts - helpers.each(me.data.datasets, function(dataset, datasetIndex) { - me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements(); - }, me); - - me.updateLayout(); - - // Can only reset the new controllers after the scales have been updated - if (me.options.animation && me.options.animation.duration) { - helpers.each(newControllers, function(controller) { - controller.reset(); - }); - } - - me.updateDatasets(); - - // Need to reset tooltip in case it is displayed with elements that are removed - // after update. - me.tooltip.initialize(); - - // Last active contains items that were previously in the tooltip. - // When we reset the tooltip, we need to clear it - me.lastActive = []; - - // Do this before render so that any plugins that need final scale updates can use it - plugins.notify(me, 'afterUpdate'); - - if (me._bufferedRender) { - me._bufferedRequest = { - duration: config.duration, - easing: config.easing, - lazy: config.lazy - }; - } else { - me.render(config); - } - }, - - /** - * Updates the chart layout unless a plugin returns `false` to the `beforeLayout` - * hook, in which case, plugins will not be called on `afterLayout`. - * @private - */ - updateLayout: function() { - var me = this; - - if (plugins.notify(me, 'beforeLayout') === false) { - return; - } - - layouts.update(this, this.width, this.height); - - /** - * Provided for backward compatibility, use `afterLayout` instead. - * @method IPlugin#afterScaleUpdate - * @deprecated since version 2.5.0 - * @todo remove at version 3 - * @private - */ - plugins.notify(me, 'afterScaleUpdate'); - plugins.notify(me, 'afterLayout'); - }, - - /** - * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate` - * hook, in which case, plugins will not be called on `afterDatasetsUpdate`. - * @private - */ - updateDatasets: function() { - var me = this; - - if (plugins.notify(me, 'beforeDatasetsUpdate') === false) { - return; - } - - for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) { - me.updateDataset(i); - } - - plugins.notify(me, 'afterDatasetsUpdate'); - }, - - /** - * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate` - * hook, in which case, plugins will not be called on `afterDatasetUpdate`. - * @private - */ - updateDataset: function(index) { - var me = this; - var meta = me.getDatasetMeta(index); - var args = { - meta: meta, - index: index - }; - - if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) { - return; - } - - meta.controller.update(); - - plugins.notify(me, 'afterDatasetUpdate', [args]); - }, - - render: function(config) { - var me = this; - - if (!config || typeof config !== 'object') { - // backwards compatibility - config = { - duration: config, - lazy: arguments[1] - }; - } - - var duration = config.duration; - var lazy = config.lazy; - - if (plugins.notify(me, 'beforeRender') === false) { - return; - } - - var animationOptions = me.options.animation; - var onComplete = function(animation) { - plugins.notify(me, 'afterRender'); - helpers.callback(animationOptions && animationOptions.onComplete, [animation], me); - }; - - if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) { - var animation = new Chart.Animation({ - numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps - easing: config.easing || animationOptions.easing, - - render: function(chart, animationObject) { - var easingFunction = helpers.easing.effects[animationObject.easing]; - var currentStep = animationObject.currentStep; - var stepDecimal = currentStep / animationObject.numSteps; - - chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep); - }, - - onAnimationProgress: animationOptions.onProgress, - onAnimationComplete: onComplete - }); - - Chart.animationService.addAnimation(me, animation, duration, lazy); - } else { - me.draw(); - - // See https://github.com/chartjs/Chart.js/issues/3781 - onComplete(new Chart.Animation({numSteps: 0, chart: me})); - } - - return me; - }, - - draw: function(easingValue) { - var me = this; - - me.clear(); - - if (helpers.isNullOrUndef(easingValue)) { - easingValue = 1; - } - - me.transition(easingValue); - - if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) { - return; - } - - // Draw all the scales - helpers.each(me.boxes, function(box) { - box.draw(me.chartArea); - }, me); - - if (me.scale) { - me.scale.draw(); - } - - me.drawDatasets(easingValue); - me._drawTooltip(easingValue); - - plugins.notify(me, 'afterDraw', [easingValue]); - }, - - /** - * @private - */ - transition: function(easingValue) { - var me = this; - - for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) { - if (me.isDatasetVisible(i)) { - me.getDatasetMeta(i).controller.transition(easingValue); - } - } - - me.tooltip.transition(easingValue); - }, - - /** - * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw` - * hook, in which case, plugins will not be called on `afterDatasetsDraw`. - * @private - */ - drawDatasets: function(easingValue) { - var me = this; - - if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) { - return; - } - - // Draw datasets reversed to support proper line stacking - for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) { - if (me.isDatasetVisible(i)) { - me.drawDataset(i, easingValue); - } - } - - plugins.notify(me, 'afterDatasetsDraw', [easingValue]); - }, - - /** - * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw` - * hook, in which case, plugins will not be called on `afterDatasetDraw`. - * @private - */ - drawDataset: function(index, easingValue) { - var me = this; - var meta = me.getDatasetMeta(index); - var args = { - meta: meta, - index: index, - easingValue: easingValue - }; - - if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) { - return; - } - - meta.controller.draw(easingValue); - - plugins.notify(me, 'afterDatasetDraw', [args]); - }, - - /** - * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw` - * hook, in which case, plugins will not be called on `afterTooltipDraw`. - * @private - */ - _drawTooltip: function(easingValue) { - var me = this; - var tooltip = me.tooltip; - var args = { - tooltip: tooltip, - easingValue: easingValue - }; - - if (plugins.notify(me, 'beforeTooltipDraw', [args]) === false) { - return; - } - - tooltip.draw(); - - plugins.notify(me, 'afterTooltipDraw', [args]); - }, - - // Get the single element that was clicked on - // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw - getElementAtEvent: function(e) { - return Interaction.modes.single(this, e); - }, - - getElementsAtEvent: function(e) { - return Interaction.modes.label(this, e, {intersect: true}); - }, - - getElementsAtXAxis: function(e) { - return Interaction.modes['x-axis'](this, e, {intersect: true}); - }, - - getElementsAtEventForMode: function(e, mode, options) { - var method = Interaction.modes[mode]; - if (typeof method === 'function') { - return method(this, e, options); - } - - return []; - }, - - getDatasetAtEvent: function(e) { - return Interaction.modes.dataset(this, e, {intersect: true}); - }, - - getDatasetMeta: function(datasetIndex) { - var me = this; - var dataset = me.data.datasets[datasetIndex]; - if (!dataset._meta) { - dataset._meta = {}; - } - - var meta = dataset._meta[me.id]; - if (!meta) { - meta = dataset._meta[me.id] = { - type: null, - data: [], - dataset: null, - controller: null, - hidden: null, // See isDatasetVisible() comment - xAxisID: null, - yAxisID: null - }; - } - - return meta; - }, - - getVisibleDatasetCount: function() { - var count = 0; - for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { - if (this.isDatasetVisible(i)) { - count++; - } - } - return count; - }, - - isDatasetVisible: function(datasetIndex) { - var meta = this.getDatasetMeta(datasetIndex); - - // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false, - // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned. - return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden; - }, - - generateLegend: function() { - return this.options.legendCallback(this); - }, - - /** - * @private - */ - destroyDatasetMeta: function(datasetIndex) { - var id = this.id; - var dataset = this.data.datasets[datasetIndex]; - var meta = dataset._meta && dataset._meta[id]; - - if (meta) { - meta.controller.destroy(); - delete dataset._meta[id]; - } - }, - - destroy: function() { - var me = this; - var canvas = me.canvas; - var i, ilen; - - me.stop(); - - // dataset controllers need to cleanup associated data - for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) { - me.destroyDatasetMeta(i); - } - - if (canvas) { - me.unbindEvents(); - helpers.canvas.clear(me); - platform.releaseContext(me.ctx); - me.canvas = null; - me.ctx = null; - } - - plugins.notify(me, 'destroy'); - - delete Chart.instances[me.id]; - }, - - toBase64Image: function() { - return this.canvas.toDataURL.apply(this.canvas, arguments); - }, - - initToolTip: function() { - var me = this; - me.tooltip = new Chart.Tooltip({ - _chart: me, - _chartInstance: me, // deprecated, backward compatibility - _data: me.data, - _options: me.options.tooltips - }, me); - }, - - /** - * @private - */ - bindEvents: function() { - var me = this; - var listeners = me._listeners = {}; - var listener = function() { - me.eventHandler.apply(me, arguments); - }; - - helpers.each(me.options.events, function(type) { - platform.addEventListener(me, type, listener); - listeners[type] = listener; - }); - - // Elements used to detect size change should not be injected for non responsive charts. - // See https://github.com/chartjs/Chart.js/issues/2210 - if (me.options.responsive) { - listener = function() { - me.resize(); - }; - - platform.addEventListener(me, 'resize', listener); - listeners.resize = listener; - } - }, - - /** - * @private - */ - unbindEvents: function() { - var me = this; - var listeners = me._listeners; - if (!listeners) { - return; - } - - delete me._listeners; - helpers.each(listeners, function(listener, type) { - platform.removeEventListener(me, type, listener); - }); - }, - - updateHoverStyle: function(elements, mode, enabled) { - var method = enabled ? 'setHoverStyle' : 'removeHoverStyle'; - var element, i, ilen; - - for (i = 0, ilen = elements.length; i < ilen; ++i) { - element = elements[i]; - if (element) { - this.getDatasetMeta(element._datasetIndex).controller[method](element); - } - } - }, - - /** - * @private - */ - eventHandler: function(e) { - var me = this; - var tooltip = me.tooltip; - - if (plugins.notify(me, 'beforeEvent', [e]) === false) { - return; - } - - // Buffer any update calls so that renders do not occur - me._bufferedRender = true; - me._bufferedRequest = null; - - var changed = me.handleEvent(e); - // for smooth tooltip animations issue #4989 - // the tooltip should be the source of change - // Animation check workaround: - // tooltip._start will be null when tooltip isn't animating - if (tooltip) { - changed = tooltip._start - ? tooltip.handleEvent(e) - : changed | tooltip.handleEvent(e); - } - - plugins.notify(me, 'afterEvent', [e]); - - var bufferedRequest = me._bufferedRequest; - if (bufferedRequest) { - // If we have an update that was triggered, we need to do a normal render - me.render(bufferedRequest); - } else if (changed && !me.animating) { - // If entering, leaving, or changing elements, animate the change via pivot - me.stop(); - - // We only need to render at this point. Updating will cause scales to be - // recomputed generating flicker & using more memory than necessary. - me.render(me.options.hover.animationDuration, true); - } - - me._bufferedRender = false; - me._bufferedRequest = null; - - return me; - }, - - /** - * Handle an event - * @private - * @param {IEvent} event the event to handle - * @return {Boolean} true if the chart needs to re-render - */ - handleEvent: function(e) { - var me = this; - var options = me.options || {}; - var hoverOptions = options.hover; - var changed = false; - - me.lastActive = me.lastActive || []; - - // Find Active Elements for hover and tooltips - if (e.type === 'mouseout') { - me.active = []; - } else { - me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions); - } - - // Invoke onHover hook - // Need to call with native event here to not break backwards compatibility - helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me); - - if (e.type === 'mouseup' || e.type === 'click') { - if (options.onClick) { - // Use e.native here for backwards compatibility - options.onClick.call(me, e.native, me.active); - } - } - - // Remove styling for last active (even if it may still be active) - if (me.lastActive.length) { - me.updateHoverStyle(me.lastActive, hoverOptions.mode, false); - } - - // Built in hover styling - if (me.active.length && hoverOptions.mode) { - me.updateHoverStyle(me.active, hoverOptions.mode, true); - } - - changed = !helpers.arrayEquals(me.active, me.lastActive); - - // Remember Last Actives - me.lastActive = me.active; - - return changed; - } - }); - - /** - * Provided for backward compatibility, use Chart instead. - * @class Chart.Controller - * @deprecated since version 2.6.0 - * @todo remove at version 3 - * @private - */ - Chart.Controller = Chart; -}; - -},{"25":25,"28":28,"30":30,"31":31,"45":45,"48":48}],24:[function(require,module,exports){ -'use strict'; - -var helpers = require(45); - -module.exports = function(Chart) { - - var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; - - /** - * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice', - * 'unshift') and notify the listener AFTER the array has been altered. Listeners are - * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments. - */ - 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(function(key) { - var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1); - var base = array[key]; - - Object.defineProperty(array, key, { - configurable: true, - enumerable: false, - value: function() { - var args = Array.prototype.slice.call(arguments); - var res = base.apply(this, args); - - helpers.each(array._chartjs.listeners, function(object) { - if (typeof object[method] === 'function') { - object[method].apply(object, args); - } - }); - - return res; - } - }); - }); - } - - /** - * Removes the given array event listener and cleanup extra attached properties (such as - * the _chartjs stub and overridden methods) if array doesn't have any more listeners. - */ - function unlistenArrayEvents(array, listener) { - var stub = array._chartjs; - if (!stub) { - return; - } - - var listeners = stub.listeners; - var index = listeners.indexOf(listener); - if (index !== -1) { - listeners.splice(index, 1); - } - - if (listeners.length > 0) { - return; - } - - arrayEvents.forEach(function(key) { - delete array[key]; - }); - - delete array._chartjs; - } - - // Base class for all dataset controllers (line, bar, etc) - Chart.DatasetController = function(chart, datasetIndex) { - this.initialize(chart, datasetIndex); - }; - - helpers.extend(Chart.DatasetController.prototype, { - - /** - * Element type used to generate a meta dataset (e.g. Chart.element.Line). - * @type {Chart.core.element} - */ - datasetElementType: null, - - /** - * Element type used to generate a meta data (e.g. Chart.element.Point). - * @type {Chart.core.element} - */ - dataElementType: null, - - initialize: function(chart, datasetIndex) { - var me = this; - me.chart = chart; - me.index = datasetIndex; - me.linkScales(); - me.addElements(); - }, - - updateIndex: function(datasetIndex) { - this.index = datasetIndex; - }, - - linkScales: function() { - var me = this; - var meta = me.getMeta(); - var dataset = me.getDataset(); - - if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) { - meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id; - } - if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) { - meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id; - } - }, - - getDataset: function() { - return this.chart.data.datasets[this.index]; - }, - - getMeta: function() { - return this.chart.getDatasetMeta(this.index); - }, - - getScaleForId: function(scaleID) { - return this.chart.scales[scaleID]; - }, - - reset: function() { - this.update(true); - }, - - /** - * @private - */ - destroy: function() { - if (this._data) { - unlistenArrayEvents(this._data, this); - } - }, - - createMetaDataset: function() { - var me = this; - var type = me.datasetElementType; - return type && new type({ - _chart: me.chart, - _datasetIndex: me.index - }); - }, - - createMetaData: function(index) { - var me = this; - var type = me.dataElementType; - return type && new type({ - _chart: me.chart, - _datasetIndex: me.index, - _index: index - }); - }, - - addElements: function() { - var me = this; - var meta = me.getMeta(); - var data = me.getDataset().data || []; - var metaData = meta.data; - var i, ilen; - - for (i = 0, ilen = data.length; i < ilen; ++i) { - metaData[i] = metaData[i] || me.createMetaData(i); - } - - meta.dataset = meta.dataset || me.createMetaDataset(); - }, - - addElementAndReset: function(index) { - var element = this.createMetaData(index); - this.getMeta().data.splice(index, 0, element); - this.updateElement(element, index, true); - }, - - buildOrUpdateElements: function() { - var me = this; - var dataset = me.getDataset(); - var data = dataset.data || (dataset.data = []); - - // In order to correctly handle data addition/deletion animation (an thus simulate - // real-time charts), we need to monitor these data modifications and synchronize - // the internal meta data accordingly. - if (me._data !== data) { - if (me._data) { - // This case happens when the user replaced the data array instance. - unlistenArrayEvents(me._data, me); - } - - listenArrayEvents(data, me); - me._data = data; - } - - // Re-sync meta data in case the user replaced the data array or if we missed - // any updates and so make sure that we handle number of datapoints changing. - me.resyncElements(); - }, - - update: helpers.noop, - - transition: function(easingValue) { - var meta = this.getMeta(); - var elements = meta.data || []; - var ilen = elements.length; - var i = 0; - - for (; i < ilen; ++i) { - elements[i].transition(easingValue); - } - - if (meta.dataset) { - meta.dataset.transition(easingValue); - } - }, - - draw: function() { - var meta = this.getMeta(); - var elements = meta.data || []; - var ilen = elements.length; - var i = 0; - - if (meta.dataset) { - meta.dataset.draw(); - } - - for (; i < ilen; ++i) { - elements[i].draw(); - } - }, - - removeHoverStyle: function(element, elementOpts) { - var dataset = this.chart.data.datasets[element._datasetIndex]; - var index = element._index; - var custom = element.custom || {}; - var valueOrDefault = helpers.valueAtIndexOrDefault; - var model = element._model; - - model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor); - model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor); - model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth); - }, - - setHoverStyle: function(element) { - var dataset = this.chart.data.datasets[element._datasetIndex]; - var index = element._index; - var custom = element.custom || {}; - var valueOrDefault = helpers.valueAtIndexOrDefault; - var getHoverColor = helpers.getHoverColor; - var model = element._model; - - model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor)); - model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor)); - model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth); - }, - - /** - * @private - */ - resyncElements: function() { - var me = this; - var meta = me.getMeta(); - var data = me.getDataset().data; - var numMeta = meta.data.length; - var numData = data.length; - - if (numData < numMeta) { - meta.data.splice(numData, numMeta - numData); - } else if (numData > numMeta) { - me.insertElements(numMeta, numData - numMeta); - } - }, - - /** - * @private - */ - insertElements: function(start, count) { - for (var i = 0; i < count; ++i) { - this.addElementAndReset(start + i); - } - }, - - /** - * @private - */ - onDataPush: function() { - this.insertElements(this.getDataset().data.length - 1, arguments.length); - }, - - /** - * @private - */ - onDataPop: function() { - this.getMeta().data.pop(); - }, - - /** - * @private - */ - onDataShift: function() { - this.getMeta().data.shift(); - }, - - /** - * @private - */ - onDataSplice: function(start, count) { - this.getMeta().data.splice(start, count); - this.insertElements(start, arguments.length - 2); - }, - - /** - * @private - */ - onDataUnshift: function() { - this.insertElements(0, arguments.length); - } - }); - - Chart.DatasetController.extend = helpers.inherits; -}; - -},{"45":45}],25:[function(require,module,exports){ -'use strict'; - -var helpers = require(45); - -module.exports = { - /** - * @private - */ - _set: function(scope, values) { - return helpers.merge(this[scope] || (this[scope] = {}), values); - } -}; - -},{"45":45}],26:[function(require,module,exports){ -'use strict'; - -var color = require(3); -var helpers = require(45); - -function interpolate(start, view, model, ease) { - var keys = Object.keys(model); - var i, ilen, key, actual, origin, target, type, c0, c1; - - for (i = 0, ilen = keys.length; i < ilen; ++i) { - key = keys[i]; - - target = model[key]; - - // if a value is added to the model after pivot() has been called, the view - // doesn't contain it, so let's initialize the view to the target value. - if (!view.hasOwnProperty(key)) { - view[key] = target; - } - - actual = view[key]; - - if (actual === target || key[0] === '_') { - continue; - } - - if (!start.hasOwnProperty(key)) { - start[key] = actual; - } - - origin = start[key]; - - type = typeof target; - - if (type === typeof origin) { - if (type === 'string') { - c0 = color(origin); - if (c0.valid) { - c1 = color(target); - if (c1.valid) { - view[key] = c1.mix(c0, ease).rgbString(); - continue; - } - } - } else if (type === 'number' && isFinite(origin) && isFinite(target)) { - view[key] = origin + (target - origin) * ease; - continue; - } - } - - view[key] = target; - } -} - -var Element = function(configuration) { - helpers.extend(this, configuration); - this.initialize.apply(this, arguments); -}; - -helpers.extend(Element.prototype, { - - initialize: function() { - this.hidden = false; - }, - - pivot: function() { - var me = this; - if (!me._view) { - me._view = helpers.clone(me._model); - } - me._start = {}; - return me; - }, - - transition: function(ease) { - var me = this; - var model = me._model; - var start = me._start; - var view = me._view; - - // No animation -> No Transition - if (!model || ease === 1) { - me._view = model; - me._start = null; - return me; - } - - if (!view) { - view = me._view = {}; - } - - if (!start) { - start = me._start = {}; - } - - interpolate(start, view, model, ease); - - return me; - }, - - tooltipPosition: function() { - return { - x: this._model.x, - y: this._model.y - }; - }, - - hasValue: function() { - return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y); - } -}); - -Element.extend = helpers.inherits; - -module.exports = Element; - -},{"3":3,"45":45}],27:[function(require,module,exports){ -/* global window: false */ -/* global document: false */ -'use strict'; - -var color = require(3); -var defaults = require(25); -var helpers = require(45); - -module.exports = function(Chart) { - - // -- Basic js utility methods - - helpers.configMerge = function(/* objects ... */) { - return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), { - merger: function(key, target, source, options) { - var tval = target[key] || {}; - var sval = source[key]; - - if (key === 'scales') { - // scale config merging is complex. Add our own function here for that - target[key] = helpers.scaleMerge(tval, sval); - } else if (key === 'scale') { - // used in polar area & radar charts since there is only one scale - target[key] = helpers.merge(tval, [Chart.scaleService.getScaleDefaults(sval.type), sval]); - } else { - helpers._merger(key, target, source, options); - } - } - }); - }; - - helpers.scaleMerge = function(/* objects ... */) { - return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), { - merger: function(key, target, source, options) { - if (key === 'xAxes' || key === 'yAxes') { - var slen = source[key].length; - var i, type, scale; - - if (!target[key]) { - target[key] = []; - } - - for (i = 0; i < slen; ++i) { - scale = source[key][i]; - type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear'); - - if (i >= target[key].length) { - target[key].push({}); - } - - if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) { - // new/untyped scale or type changed: let's apply the new defaults - // then merge source scale to correctly overwrite the defaults. - helpers.merge(target[key][i], [Chart.scaleService.getScaleDefaults(type), scale]); - } else { - // scales type are the same - helpers.merge(target[key][i], scale); - } - } - } else { - helpers._merger(key, target, source, options); - } - } - }); - }; - - helpers.where = function(collection, filterCallback) { - if (helpers.isArray(collection) && Array.prototype.filter) { - return collection.filter(filterCallback); - } - var filtered = []; - - helpers.each(collection, function(item) { - if (filterCallback(item)) { - filtered.push(item); - } - }); - - return filtered; - }; - helpers.findIndex = Array.prototype.findIndex ? - function(array, callback, scope) { - return array.findIndex(callback, scope); - } : - function(array, callback, scope) { - scope = scope === undefined ? array : scope; - for (var i = 0, ilen = array.length; i < ilen; ++i) { - if (callback.call(scope, array[i], i, array)) { - return i; - } - } - return -1; - }; - helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) { - // Default to start of the array - if (helpers.isNullOrUndef(startIndex)) { - startIndex = -1; - } - for (var i = startIndex + 1; i < arrayToSearch.length; i++) { - var currentItem = arrayToSearch[i]; - if (filterCallback(currentItem)) { - return currentItem; - } - } - }; - helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) { - // Default to end of the array - if (helpers.isNullOrUndef(startIndex)) { - startIndex = arrayToSearch.length; - } - for (var i = startIndex - 1; i >= 0; i--) { - var currentItem = arrayToSearch[i]; - if (filterCallback(currentItem)) { - return currentItem; - } - } - }; - - // -- Math methods - helpers.isNumber = function(n) { - return !isNaN(parseFloat(n)) && isFinite(n); - }; - helpers.almostEquals = function(x, y, epsilon) { - return Math.abs(x - y) < epsilon; - }; - helpers.almostWhole = function(x, epsilon) { - var rounded = Math.round(x); - return (((rounded - epsilon) < x) && ((rounded + epsilon) > x)); - }; - helpers.max = function(array) { - return array.reduce(function(max, value) { - if (!isNaN(value)) { - return Math.max(max, value); - } - return max; - }, Number.NEGATIVE_INFINITY); - }; - helpers.min = function(array) { - return array.reduce(function(min, value) { - if (!isNaN(value)) { - return Math.min(min, value); - } - return min; - }, Number.POSITIVE_INFINITY); - }; - helpers.sign = Math.sign ? - function(x) { - return Math.sign(x); - } : - function(x) { - x = +x; // convert to a number - if (x === 0 || isNaN(x)) { - return x; - } - return x > 0 ? 1 : -1; - }; - helpers.log10 = Math.log10 ? - function(x) { - return Math.log10(x); - } : - function(x) { - var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10. - // Check for whole powers of 10, - // which due to floating point rounding error should be corrected. - var powerOf10 = Math.round(exponent); - var isPowerOf10 = x === Math.pow(10, powerOf10); - - return isPowerOf10 ? powerOf10 : exponent; - }; - helpers.toRadians = function(degrees) { - return degrees * (Math.PI / 180); - }; - helpers.toDegrees = function(radians) { - return radians * (180 / Math.PI); - }; - // Gets the angle from vertical upright to the point about a centre. - helpers.getAngleFromPoint = function(centrePoint, anglePoint) { - var distanceFromXCenter = anglePoint.x - centrePoint.x; - var distanceFromYCenter = anglePoint.y - centrePoint.y; - var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); - - var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); - - if (angle < (-0.5 * Math.PI)) { - angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2] - } - - return { - angle: angle, - distance: radialDistanceFromCenter - }; - }; - helpers.distanceBetweenPoints = function(pt1, pt2) { - return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); - }; - helpers.aliasPixel = function(pixelWidth) { - return (pixelWidth % 2 === 0) ? 0 : 0.5; - }; - helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) { - // Props to Rob Spencer at scaled innovation for his post on splining between points - // http://scaledinnovation.com/analytics/splines/aboutSplines.html - - // This function must also respect "skipped" points - - var previous = firstPoint.skip ? middlePoint : firstPoint; - var current = middlePoint; - var next = afterPoint.skip ? middlePoint : afterPoint; - - var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2)); - var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2)); - - var s01 = d01 / (d01 + d12); - var s12 = d12 / (d01 + d12); - - // If all points are the same, s01 & s02 will be inf - s01 = isNaN(s01) ? 0 : s01; - s12 = isNaN(s12) ? 0 : s12; - - var fa = t * s01; // scaling factor for triangle Ta - var 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) - } - }; - }; - helpers.EPSILON = Number.EPSILON || 1e-14; - helpers.splineCurveMonotone = function(points) { - // This function calculates Bézier control points in a similar way than |splineCurve|, - // but preserves monotonicity of the provided data and ensures no local extremums are added - // between the dataset discrete points due to the interpolation. - // See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation - - var pointsWithTangents = (points || []).map(function(point) { - return { - model: point._model, - deltaK: 0, - mK: 0 - }; - }); - - // Calculate slopes (deltaK) and initialize tangents (mK) - var pointsLen = pointsWithTangents.length; - var i, pointBefore, pointCurrent, pointAfter; - for (i = 0; i < pointsLen; ++i) { - pointCurrent = pointsWithTangents[i]; - if (pointCurrent.model.skip) { - continue; - } - - pointBefore = i > 0 ? pointsWithTangents[i - 1] : null; - pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null; - if (pointAfter && !pointAfter.model.skip) { - var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x); - - // In the case of two points that appear at the same x pixel, slopeDeltaX is 0 - pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0; - } - - if (!pointBefore || pointBefore.model.skip) { - pointCurrent.mK = pointCurrent.deltaK; - } else if (!pointAfter || pointAfter.model.skip) { - pointCurrent.mK = pointBefore.deltaK; - } else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) { - pointCurrent.mK = 0; - } else { - pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2; - } - } - - // Adjust tangents to ensure monotonic properties - var alphaK, betaK, tauK, squaredMagnitude; - for (i = 0; i < pointsLen - 1; ++i) { - pointCurrent = pointsWithTangents[i]; - pointAfter = pointsWithTangents[i + 1]; - if (pointCurrent.model.skip || pointAfter.model.skip) { - continue; - } - - if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) { - pointCurrent.mK = pointAfter.mK = 0; - continue; - } - - alphaK = pointCurrent.mK / pointCurrent.deltaK; - betaK = pointAfter.mK / pointCurrent.deltaK; - squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); - if (squaredMagnitude <= 9) { - continue; - } - - tauK = 3 / Math.sqrt(squaredMagnitude); - pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK; - pointAfter.mK = betaK * tauK * pointCurrent.deltaK; - } - - // Compute control points - var deltaX; - for (i = 0; i < pointsLen; ++i) { - pointCurrent = pointsWithTangents[i]; - if (pointCurrent.model.skip) { - continue; - } - - pointBefore = i > 0 ? pointsWithTangents[i - 1] : null; - pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null; - if (pointBefore && !pointBefore.model.skip) { - deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3; - pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX; - pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK; - } - if (pointAfter && !pointAfter.model.skip) { - deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3; - pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX; - pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK; - } - } - }; - helpers.nextItem = function(collection, index, loop) { - if (loop) { - return index >= collection.length - 1 ? collection[0] : collection[index + 1]; - } - return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1]; - }; - helpers.previousItem = function(collection, index, loop) { - if (loop) { - return index <= 0 ? collection[collection.length - 1] : collection[index - 1]; - } - return index <= 0 ? collection[0] : collection[index - 1]; - }; - // Implementation of the nice number algorithm used in determining where axis labels will go - helpers.niceNum = function(range, round) { - var exponent = Math.floor(helpers.log10(range)); - var fraction = range / Math.pow(10, exponent); - var niceFraction; - - if (round) { - if (fraction < 1.5) { - niceFraction = 1; - } else if (fraction < 3) { - niceFraction = 2; - } else if (fraction < 7) { - niceFraction = 5; - } else { - niceFraction = 10; - } - } else if (fraction <= 1.0) { - niceFraction = 1; - } else if (fraction <= 2) { - niceFraction = 2; - } else if (fraction <= 5) { - niceFraction = 5; - } else { - niceFraction = 10; - } - - return niceFraction * Math.pow(10, exponent); - }; - // Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/ - helpers.requestAnimFrame = (function() { - if (typeof window === 'undefined') { - return function(callback) { - callback(); - }; - } - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function(callback) { - return window.setTimeout(callback, 1000 / 60); - }; - }()); - // -- DOM methods - helpers.getRelativePosition = function(evt, chart) { - var mouseX, mouseY; - var e = evt.originalEvent || evt; - var canvas = evt.currentTarget || evt.srcElement; - var boundingRect = canvas.getBoundingClientRect(); - - var touches = e.touches; - if (touches && touches.length > 0) { - mouseX = touches[0].clientX; - mouseY = touches[0].clientY; - - } else { - mouseX = e.clientX; - mouseY = e.clientY; - } - - // Scale mouse coordinates into canvas coordinates - // by following the pattern laid out by 'jerryj' in the comments of - // http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/ - var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left')); - var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top')); - var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right')); - var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom')); - var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight; - var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom; - - // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However - // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here - mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio); - mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio); - - return { - x: mouseX, - y: mouseY - }; - - }; - - // Private helper function to convert max-width/max-height values that may be percentages into a number - function parseMaxStyle(styleValue, node, parentProperty) { - var valueInPixels; - if (typeof styleValue === 'string') { - valueInPixels = parseInt(styleValue, 10); - - if (styleValue.indexOf('%') !== -1) { - // percentage * size in dimension - valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; - } - } else { - valueInPixels = styleValue; - } - - return valueInPixels; - } - - /** - * Returns if the given value contains an effective constraint. - * @private - */ - function isConstrainedValue(value) { - return value !== undefined && value !== null && value !== 'none'; - } - - // Private helper to get a constraint dimension - // @param domNode : the node to check the constraint on - // @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight) - // @param percentageProperty : property of parent to use when calculating width as a percentage - // @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser - function getConstraintDimension(domNode, maxStyle, percentageProperty) { - var view = document.defaultView; - var parentNode = domNode.parentNode; - var constrainedNode = view.getComputedStyle(domNode)[maxStyle]; - var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle]; - var hasCNode = isConstrainedValue(constrainedNode); - var hasCContainer = isConstrainedValue(constrainedContainer); - var infinity = Number.POSITIVE_INFINITY; - - if (hasCNode || hasCContainer) { - return Math.min( - hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity, - hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity); - } - - return 'none'; - } - // returns Number or undefined if no constraint - helpers.getConstraintWidth = function(domNode) { - return getConstraintDimension(domNode, 'max-width', 'clientWidth'); - }; - // returns Number or undefined if no constraint - helpers.getConstraintHeight = function(domNode) { - return getConstraintDimension(domNode, 'max-height', 'clientHeight'); - }; - helpers.getMaximumWidth = function(domNode) { - var container = domNode.parentNode; - if (!container) { - return domNode.clientWidth; - } - - var paddingLeft = parseInt(helpers.getStyle(container, 'padding-left'), 10); - var paddingRight = parseInt(helpers.getStyle(container, 'padding-right'), 10); - var w = container.clientWidth - paddingLeft - paddingRight; - var cw = helpers.getConstraintWidth(domNode); - return isNaN(cw) ? w : Math.min(w, cw); - }; - helpers.getMaximumHeight = function(domNode) { - var container = domNode.parentNode; - if (!container) { - return domNode.clientHeight; - } - - var paddingTop = parseInt(helpers.getStyle(container, 'padding-top'), 10); - var paddingBottom = parseInt(helpers.getStyle(container, 'padding-bottom'), 10); - var h = container.clientHeight - paddingTop - paddingBottom; - var ch = helpers.getConstraintHeight(domNode); - return isNaN(ch) ? h : Math.min(h, ch); - }; - helpers.getStyle = function(el, property) { - return el.currentStyle ? - el.currentStyle[property] : - document.defaultView.getComputedStyle(el, null).getPropertyValue(property); - }; - helpers.retinaScale = function(chart, forceRatio) { - var pixelRatio = chart.currentDevicePixelRatio = forceRatio || window.devicePixelRatio || 1; - if (pixelRatio === 1) { - return; - } - - var canvas = chart.canvas; - var height = chart.height; - var width = chart.width; - - canvas.height = height * pixelRatio; - canvas.width = width * pixelRatio; - chart.ctx.scale(pixelRatio, pixelRatio); - - // If no style has been set on the canvas, the render size is used as display size, - // making the chart visually bigger, so let's enforce it to the "correct" values. - // See https://github.com/chartjs/Chart.js/issues/3575 - if (!canvas.style.height && !canvas.style.width) { - canvas.style.height = height + 'px'; - canvas.style.width = width + 'px'; - } - }; - // -- Canvas methods - helpers.fontString = function(pixelSize, fontStyle, fontFamily) { - return fontStyle + ' ' + pixelSize + 'px ' + fontFamily; - }; - helpers.longestText = function(ctx, font, arrayOfThings, cache) { - cache = cache || {}; - var data = cache.data = cache.data || {}; - var gc = cache.garbageCollect = cache.garbageCollect || []; - - if (cache.font !== font) { - data = cache.data = {}; - gc = cache.garbageCollect = []; - cache.font = font; - } - - ctx.font = font; - var longest = 0; - helpers.each(arrayOfThings, function(thing) { - // Undefined strings and arrays should not be measured - if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) { - longest = helpers.measureText(ctx, data, gc, longest, thing); - } else if (helpers.isArray(thing)) { - // if it is an array lets measure each element - // to do maybe simplify this function a bit so we can do this more recursively? - helpers.each(thing, function(nestedThing) { - // Undefined strings and arrays should not be measured - if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) { - longest = helpers.measureText(ctx, data, gc, longest, nestedThing); - } - }); - } - }); - - var gcLen = gc.length / 2; - if (gcLen > arrayOfThings.length) { - for (var i = 0; i < gcLen; i++) { - delete data[gc[i]]; - } - gc.splice(0, gcLen); - } - return longest; - }; - helpers.measureText = function(ctx, data, gc, longest, string) { - var textWidth = data[string]; - if (!textWidth) { - textWidth = data[string] = ctx.measureText(string).width; - gc.push(string); - } - if (textWidth > longest) { - longest = textWidth; - } - return longest; - }; - helpers.numberOfLabelLines = function(arrayOfThings) { - var numberOfLines = 1; - helpers.each(arrayOfThings, function(thing) { - if (helpers.isArray(thing)) { - if (thing.length > numberOfLines) { - numberOfLines = thing.length; - } - } - }); - return numberOfLines; - }; - - helpers.color = !color ? - function(value) { - console.error('Color.js not found!'); - return value; - } : - function(value) { - /* global CanvasGradient */ - if (value instanceof CanvasGradient) { - value = defaults.global.defaultColor; - } - - return color(value); - }; - - helpers.getHoverColor = function(colorValue) { - /* global CanvasPattern */ - return (colorValue instanceof CanvasPattern) ? - colorValue : - helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString(); - }; -}; - -},{"25":25,"3":3,"45":45}],28:[function(require,module,exports){ -'use strict'; - -var helpers = require(45); - -/** - * Helper function to get relative position for an event - * @param {Event|IEvent} event - The event to get the position for - * @param {Chart} chart - The chart - * @returns {Point} the event position - */ -function getRelativePosition(e, chart) { - if (e.native) { - return { - x: e.x, - y: e.y - }; - } - - return helpers.getRelativePosition(e, chart); -} - -/** - * Helper function to traverse all of the visible elements in the chart - * @param chart {chart} the chart - * @param handler {Function} the callback to execute for each visible item - */ -function parseVisibleItems(chart, handler) { - var datasets = chart.data.datasets; - var meta, i, j, ilen, jlen; - - for (i = 0, ilen = datasets.length; i < ilen; ++i) { - if (!chart.isDatasetVisible(i)) { - continue; - } - - meta = chart.getDatasetMeta(i); - for (j = 0, jlen = meta.data.length; j < jlen; ++j) { - var element = meta.data[j]; - if (!element._view.skip) { - handler(element); - } - } - } -} - -/** - * Helper function to get the items that intersect the event position - * @param items {ChartElement[]} elements to filter - * @param position {Point} the point to be nearest to - * @return {ChartElement[]} the nearest items - */ -function getIntersectItems(chart, position) { - var elements = []; - - parseVisibleItems(chart, function(element) { - if (element.inRange(position.x, position.y)) { - elements.push(element); - } - }); - - return elements; -} - -/** - * Helper function to get the items nearest to the event position considering all visible items in teh chart - * @param chart {Chart} the chart to look at elements from - * @param position {Point} the point to be nearest to - * @param intersect {Boolean} if true, only consider items that intersect the position - * @param distanceMetric {Function} function to provide the distance between points - * @return {ChartElement[]} the nearest items - */ -function getNearestItems(chart, position, intersect, distanceMetric) { - var minDistance = Number.POSITIVE_INFINITY; - var nearestItems = []; - - parseVisibleItems(chart, function(element) { - if (intersect && !element.inRange(position.x, position.y)) { - return; - } - - var center = element.getCenterPoint(); - var distance = distanceMetric(position, center); - - if (distance < minDistance) { - nearestItems = [element]; - minDistance = distance; - } else if (distance === minDistance) { - // Can have multiple items at the same distance in which case we sort by size - nearestItems.push(element); - } - }); - - return nearestItems; -} - -/** - * Get a distance metric function for two points based on the - * axis mode setting - * @param {String} axis the axis mode. x|y|xy - */ -function getDistanceMetricForAxis(axis) { - var useX = axis.indexOf('x') !== -1; - var useY = axis.indexOf('y') !== -1; - - return function(pt1, pt2) { - var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; - var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; - return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); - }; -} - -function indexMode(chart, e, options) { - var position = getRelativePosition(e, chart); - // Default axis for index mode is 'x' to match old behaviour - options.axis = options.axis || 'x'; - var distanceMetric = getDistanceMetricForAxis(options.axis); - var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); - var elements = []; - - if (!items.length) { - return []; - } - - chart.data.datasets.forEach(function(dataset, datasetIndex) { - if (chart.isDatasetVisible(datasetIndex)) { - var meta = chart.getDatasetMeta(datasetIndex); - var element = meta.data[items[0]._index]; - - // don't count items that are skipped (null data) - if (element && !element._view.skip) { - elements.push(element); - } - } - }); - - return elements; -} - -/** - * @interface IInteractionOptions - */ -/** - * If true, only consider items that intersect the point - * @name IInterfaceOptions#boolean - * @type Boolean - */ - -/** - * Contains interaction related functions - * @namespace Chart.Interaction - */ -module.exports = { - // Helper function for different modes - modes: { - single: function(chart, e) { - var position = getRelativePosition(e, chart); - var elements = []; - - parseVisibleItems(chart, function(element) { - if (element.inRange(position.x, position.y)) { - elements.push(element); - return elements; - } - }); - - return elements.slice(0, 1); - }, - - /** - * @function Chart.Interaction.modes.label - * @deprecated since version 2.4.0 - * @todo remove at version 3 - * @private - */ - label: indexMode, - - /** - * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something - * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item - * @function Chart.Interaction.modes.index - * @since v2.4.0 - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @param options {IInteractionOptions} options to use during interaction - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - index: indexMode, - - /** - * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something - * If the options.intersect is false, we find the nearest item and return the items in that dataset - * @function Chart.Interaction.modes.dataset - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @param options {IInteractionOptions} options to use during interaction - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - dataset: function(chart, e, options) { - var position = getRelativePosition(e, chart); - options.axis = options.axis || 'xy'; - var distanceMetric = getDistanceMetricForAxis(options.axis); - var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); - - if (items.length > 0) { - items = chart.getDatasetMeta(items[0]._datasetIndex).data; - } - - return items; - }, - - /** - * @function Chart.Interaction.modes.x-axis - * @deprecated since version 2.4.0. Use index mode and intersect == true - * @todo remove at version 3 - * @private - */ - 'x-axis': function(chart, e) { - return indexMode(chart, e, {intersect: false}); - }, - - /** - * Point mode returns all elements that hit test based on the event position - * of the event - * @function Chart.Interaction.modes.intersect - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - point: function(chart, e) { - var position = getRelativePosition(e, chart); - return getIntersectItems(chart, position); - }, - - /** - * nearest mode returns the element closest to the point - * @function Chart.Interaction.modes.intersect - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @param options {IInteractionOptions} options to use - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - nearest: function(chart, e, options) { - var position = getRelativePosition(e, chart); - options.axis = options.axis || 'xy'; - var distanceMetric = getDistanceMetricForAxis(options.axis); - var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric); - - // We have multiple items at the same distance from the event. Now sort by smallest - if (nearestItems.length > 1) { - nearestItems.sort(function(a, b) { - var sizeA = a.getArea(); - var sizeB = b.getArea(); - var ret = sizeA - sizeB; - - if (ret === 0) { - // if equal sort by dataset index - ret = a._datasetIndex - b._datasetIndex; - } - - return ret; - }); - } - - // Return only 1 item - return nearestItems.slice(0, 1); - }, - - /** - * x mode returns the elements that hit-test at the current x coordinate - * @function Chart.Interaction.modes.x - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @param options {IInteractionOptions} options to use - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - x: function(chart, e, options) { - var position = getRelativePosition(e, chart); - var items = []; - var intersectsItem = false; - - parseVisibleItems(chart, function(element) { - if (element.inXRange(position.x)) { - items.push(element); - } - - if (element.inRange(position.x, position.y)) { - intersectsItem = true; - } - }); - - // If we want to trigger on an intersect and we don't have any items - // that intersect the position, return nothing - if (options.intersect && !intersectsItem) { - items = []; - } - return items; - }, - - /** - * y mode returns the elements that hit-test at the current y coordinate - * @function Chart.Interaction.modes.y - * @param chart {chart} the chart we are returning items from - * @param e {Event} the event we are find things at - * @param options {IInteractionOptions} options to use - * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned - */ - y: function(chart, e, options) { - var position = getRelativePosition(e, chart); - var items = []; - var intersectsItem = false; - - parseVisibleItems(chart, function(element) { - if (element.inYRange(position.y)) { - items.push(element); - } - - if (element.inRange(position.x, position.y)) { - intersectsItem = true; - } - }); - - // If we want to trigger on an intersect and we don't have any items - // that intersect the position, return nothing - if (options.intersect && !intersectsItem) { - items = []; - } - return items; - } - } -}; - -},{"45":45}],29:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); - -defaults._set('global', { - responsive: true, - responsiveAnimationDuration: 0, - maintainAspectRatio: true, - events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'], - hover: { - onHover: null, - mode: 'nearest', - intersect: true, - animationDuration: 400 - }, - onClick: null, - defaultColor: 'rgba(0,0,0,0.1)', - defaultFontColor: '#666', - defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", - defaultFontSize: 12, - defaultFontStyle: 'normal', - showLines: true, - - // Element defaults defined in element extensions - elements: {}, - - // Layout options such as padding - layout: { - padding: { - top: 0, - right: 0, - bottom: 0, - left: 0 - } - } -}); - -module.exports = function() { - - // Occupy the global variable of Chart, and create a simple base class - var Chart = function(item, config) { - this.construct(item, config); - return this; - }; - - Chart.Chart = Chart; - - return Chart; -}; - -},{"25":25}],30:[function(require,module,exports){ -'use strict'; - -var helpers = require(45); - -function filterByPosition(array, position) { - return helpers.where(array, function(v) { - return v.position === position; - }); -} - -function sortByWeight(array, reverse) { - array.forEach(function(v, i) { - v._tmpIndex_ = i; - return v; - }); - array.sort(function(a, b) { - var v0 = reverse ? b : a; - var v1 = reverse ? a : b; - return v0.weight === v1.weight ? - v0._tmpIndex_ - v1._tmpIndex_ : - v0.weight - v1.weight; - }); - array.forEach(function(v) { - delete v._tmpIndex_; - }); -} - -/** - * @interface ILayoutItem - * @prop {String} position - The position of the item in the chart layout. Possible values are - * 'left', 'top', 'right', 'bottom', and 'chartArea' - * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area - * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down - * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom) - * @prop {Function} update - Takes two parameters: width and height. Returns size of item - * @prop {Function} getPadding - Returns an object with padding on the edges - * @prop {Number} width - Width of item. Must be valid after update() - * @prop {Number} height - Height of item. Must be valid after update() - * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update - * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update - * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update - * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update - */ - -// The layout service is very self explanatory. It's responsible for the layout within a chart. -// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need -// It is this service's responsibility of carrying out that layout. -module.exports = { - defaults: {}, - - /** - * Register a box to a chart. - * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title. - * @param {Chart} chart - the chart to use - * @param {ILayoutItem} item - the item to add to be layed out - */ - addBox: function(chart, item) { - if (!chart.boxes) { - chart.boxes = []; - } - - // initialize item with default values - item.fullWidth = item.fullWidth || false; - item.position = item.position || 'top'; - item.weight = item.weight || 0; - - chart.boxes.push(item); - }, - - /** - * Remove a layoutItem from a chart - * @param {Chart} chart - the chart to remove the box from - * @param {Object} layoutItem - the item to remove from the layout - */ - removeBox: function(chart, layoutItem) { - var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; - if (index !== -1) { - chart.boxes.splice(index, 1); - } - }, - - /** - * Sets (or updates) options on the given `item`. - * @param {Chart} chart - the chart in which the item lives (or will be added to) - * @param {Object} item - the item to configure with the given options - * @param {Object} options - the new item options. - */ - configure: function(chart, item, options) { - var props = ['fullWidth', 'position', 'weight']; - var ilen = props.length; - var i = 0; - var prop; - - for (; i < ilen; ++i) { - prop = props[i]; - if (options.hasOwnProperty(prop)) { - item[prop] = options[prop]; - } - } - }, - - /** - * Fits boxes of the given chart into the given size by having each box measure itself - * then running a fitting algorithm - * @param {Chart} chart - the chart - * @param {Number} width - the width to fit into - * @param {Number} height - the height to fit into - */ - update: function(chart, width, height) { - if (!chart) { - return; - } - - var layoutOptions = chart.options.layout || {}; - var padding = helpers.options.toPadding(layoutOptions.padding); - var leftPadding = padding.left; - var rightPadding = padding.right; - var topPadding = padding.top; - var bottomPadding = padding.bottom; - - var leftBoxes = filterByPosition(chart.boxes, 'left'); - var rightBoxes = filterByPosition(chart.boxes, 'right'); - var topBoxes = filterByPosition(chart.boxes, 'top'); - var bottomBoxes = filterByPosition(chart.boxes, 'bottom'); - var chartAreaBoxes = filterByPosition(chart.boxes, 'chartArea'); - - // Sort boxes by weight. A higher weight is further away from the chart area - sortByWeight(leftBoxes, true); - sortByWeight(rightBoxes, false); - sortByWeight(topBoxes, true); - sortByWeight(bottomBoxes, false); - - // Essentially we now have any number of boxes on each of the 4 sides. - // Our canvas looks like the following. - // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and - // B1 is the bottom axis - // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays - // These locations are single-box locations only, when trying to register a chartArea location that is already taken, - // an error will be thrown. - // - // |----------------------------------------------------| - // | T1 (Full Width) | - // |----------------------------------------------------| - // | | | T2 | | - // | |----|-------------------------------------|----| - // | | | C1 | | C2 | | - // | | |----| |----| | - // | | | | | - // | L1 | L2 | ChartArea (C0) | R1 | - // | | | | | - // | | |----| |----| | - // | | | C3 | | C4 | | - // | |----|-------------------------------------|----| - // | | | B1 | | - // |----------------------------------------------------| - // | B2 (Full Width) | - // |----------------------------------------------------| - // - // What we do to find the best sizing, we do the following - // 1. Determine the minimum size of the chart area. - // 2. Split the remaining width equally between each vertical axis - // 3. Split the remaining height equally between each horizontal axis - // 4. Give each layout the maximum size it can be. The layout will return it's minimum size - // 5. Adjust the sizes of each axis based on it's minimum reported size. - // 6. Refit each axis - // 7. Position each axis in the final location - // 8. Tell the chart the final location of the chart area - // 9. Tell any axes that overlay the chart area the positions of the chart area - - // Step 1 - var chartWidth = width - leftPadding - rightPadding; - var chartHeight = height - topPadding - bottomPadding; - var chartAreaWidth = chartWidth / 2; // min 50% - var chartAreaHeight = chartHeight / 2; // min 50% - - // Step 2 - var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length); - - // Step 3 - var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length); - - // Step 4 - var maxChartAreaWidth = chartWidth; - var maxChartAreaHeight = chartHeight; - var minBoxSizes = []; - - function getMinimumBoxSize(box) { - var minSize; - var isHorizontal = box.isHorizontal(); - - if (isHorizontal) { - minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight); - maxChartAreaHeight -= minSize.height; - } else { - minSize = box.update(verticalBoxWidth, maxChartAreaHeight); - maxChartAreaWidth -= minSize.width; - } - - minBoxSizes.push({ - horizontal: isHorizontal, - minSize: minSize, - box: box, - }); - } - - helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize); - - // If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478) - var maxHorizontalLeftPadding = 0; - var maxHorizontalRightPadding = 0; - var maxVerticalTopPadding = 0; - var maxVerticalBottomPadding = 0; - - helpers.each(topBoxes.concat(bottomBoxes), function(horizontalBox) { - if (horizontalBox.getPadding) { - var boxPadding = horizontalBox.getPadding(); - maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left); - maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right); - } - }); - - helpers.each(leftBoxes.concat(rightBoxes), function(verticalBox) { - if (verticalBox.getPadding) { - var boxPadding = verticalBox.getPadding(); - maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top); - maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom); - } - }); - - // At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could - // be if the axes are drawn at their minimum sizes. - // Steps 5 & 6 - var totalLeftBoxesWidth = leftPadding; - var totalRightBoxesWidth = rightPadding; - var totalTopBoxesHeight = topPadding; - var totalBottomBoxesHeight = bottomPadding; - - // Function to fit a box - function fitBox(box) { - var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBox) { - return minBox.box === box; - }); - - if (minBoxSize) { - if (box.isHorizontal()) { - var scaleMargin = { - left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding), - right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding), - top: 0, - bottom: 0 - }; - - // Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends - // on the margin. Sometimes they need to increase in size slightly - box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin); - } else { - box.update(minBoxSize.minSize.width, maxChartAreaHeight); - } - } - } - - // Update, and calculate the left and right margins for the horizontal boxes - helpers.each(leftBoxes.concat(rightBoxes), fitBox); - - helpers.each(leftBoxes, function(box) { - totalLeftBoxesWidth += box.width; - }); - - helpers.each(rightBoxes, function(box) { - totalRightBoxesWidth += box.width; - }); - - // Set the Left and Right margins for the horizontal boxes - helpers.each(topBoxes.concat(bottomBoxes), fitBox); - - // Figure out how much margin is on the top and bottom of the vertical boxes - helpers.each(topBoxes, function(box) { - totalTopBoxesHeight += box.height; - }); - - helpers.each(bottomBoxes, function(box) { - totalBottomBoxesHeight += box.height; - }); - - function finalFitVerticalBox(box) { - var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minSize) { - return minSize.box === box; - }); - - var scaleMargin = { - left: 0, - right: 0, - top: totalTopBoxesHeight, - bottom: totalBottomBoxesHeight - }; - - if (minBoxSize) { - box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin); - } - } - - // Let the left layout know the final margin - helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox); - - // Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance) - totalLeftBoxesWidth = leftPadding; - totalRightBoxesWidth = rightPadding; - totalTopBoxesHeight = topPadding; - totalBottomBoxesHeight = bottomPadding; - - helpers.each(leftBoxes, function(box) { - totalLeftBoxesWidth += box.width; - }); - - helpers.each(rightBoxes, function(box) { - totalRightBoxesWidth += box.width; - }); - - helpers.each(topBoxes, function(box) { - totalTopBoxesHeight += box.height; - }); - helpers.each(bottomBoxes, function(box) { - totalBottomBoxesHeight += box.height; - }); - - // We may be adding some padding to account for rotated x axis labels - var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0); - totalLeftBoxesWidth += leftPaddingAddition; - totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0); - - var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0); - totalTopBoxesHeight += topPaddingAddition; - totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0); - - // Figure out if our chart area changed. This would occur if the dataset layout label rotation - // changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do - // without calling `fit` again - var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight; - var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth; - - if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) { - helpers.each(leftBoxes, function(box) { - box.height = newMaxChartAreaHeight; - }); - - helpers.each(rightBoxes, function(box) { - box.height = newMaxChartAreaHeight; - }); - - helpers.each(topBoxes, function(box) { - if (!box.fullWidth) { - box.width = newMaxChartAreaWidth; - } - }); - - helpers.each(bottomBoxes, function(box) { - if (!box.fullWidth) { - box.width = newMaxChartAreaWidth; - } - }); - - maxChartAreaHeight = newMaxChartAreaHeight; - maxChartAreaWidth = newMaxChartAreaWidth; - } - - // Step 7 - Position the boxes - var left = leftPadding + leftPaddingAddition; - var top = topPadding + topPaddingAddition; - - function placeBox(box) { - if (box.isHorizontal()) { - box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth; - box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth; - box.top = top; - box.bottom = top + box.height; - - // Move to next point - top = box.bottom; - - } else { - - box.left = left; - box.right = left + box.width; - box.top = totalTopBoxesHeight; - box.bottom = totalTopBoxesHeight + maxChartAreaHeight; - - // Move to next point - left = box.right; - } - } - - helpers.each(leftBoxes.concat(topBoxes), placeBox); - - // Account for chart width and height - left += maxChartAreaWidth; - top += maxChartAreaHeight; - - helpers.each(rightBoxes, placeBox); - helpers.each(bottomBoxes, placeBox); - - // Step 8 - chart.chartArea = { - left: totalLeftBoxesWidth, - top: totalTopBoxesHeight, - right: totalLeftBoxesWidth + maxChartAreaWidth, - bottom: totalTopBoxesHeight + maxChartAreaHeight - }; - - // Step 9 - helpers.each(chartAreaBoxes, function(box) { - box.left = chart.chartArea.left; - box.top = chart.chartArea.top; - box.right = chart.chartArea.right; - box.bottom = chart.chartArea.bottom; - - box.update(maxChartAreaWidth, maxChartAreaHeight); - }); - } -}; - -},{"45":45}],31:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var helpers = require(45); - -defaults._set('global', { - plugins: {} -}); - -/** - * The plugin service singleton - * @namespace Chart.plugins - * @since 2.1.0 - */ -module.exports = { - /** - * Globally registered plugins. - * @private - */ - _plugins: [], - - /** - * This identifier is used to invalidate the descriptors cache attached to each chart - * when a global plugin is registered or unregistered. In this case, the cache ID is - * incremented and descriptors are regenerated during following API calls. - * @private - */ - _cacheId: 0, - - /** - * Registers the given plugin(s) if not already registered. - * @param {Array|Object} plugins plugin instance(s). - */ - register: function(plugins) { - var p = this._plugins; - ([]).concat(plugins).forEach(function(plugin) { - if (p.indexOf(plugin) === -1) { - p.push(plugin); - } - }); - - this._cacheId++; - }, - - /** - * Unregisters the given plugin(s) only if registered. - * @param {Array|Object} plugins plugin instance(s). - */ - unregister: function(plugins) { - var p = this._plugins; - ([]).concat(plugins).forEach(function(plugin) { - var idx = p.indexOf(plugin); - if (idx !== -1) { - p.splice(idx, 1); - } - }); - - this._cacheId++; - }, - - /** - * Remove all registered plugins. - * @since 2.1.5 - */ - clear: function() { - this._plugins = []; - this._cacheId++; - }, - - /** - * Returns the number of registered plugins? - * @returns {Number} - * @since 2.1.5 - */ - count: function() { - return this._plugins.length; - }, - - /** - * Returns all registered plugin instances. - * @returns {Array} array of plugin objects. - * @since 2.1.5 - */ - getAll: function() { - return this._plugins; - }, - - /** - * Calls enabled plugins for `chart` on the specified hook and with the given args. - * This method immediately returns as soon as a plugin explicitly returns false. The - * returned value can be used, for instance, to interrupt the current action. - * @param {Object} chart - The chart instance for which plugins should be called. - * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate'). - * @param {Array} [args] - Extra arguments to apply to the hook call. - * @returns {Boolean} false if any of the plugins return false, else returns true. - */ - notify: function(chart, hook, args) { - var descriptors = this.descriptors(chart); - var ilen = descriptors.length; - var i, descriptor, plugin, params, method; - - for (i = 0; i < ilen; ++i) { - descriptor = descriptors[i]; - plugin = descriptor.plugin; - method = plugin[hook]; - if (typeof method === 'function') { - params = [chart].concat(args || []); - params.push(descriptor.options); - if (method.apply(plugin, params) === false) { - return false; - } - } - } - - return true; - }, - - /** - * Returns descriptors of enabled plugins for the given chart. - * @returns {Array} [{ plugin, options }] - * @private - */ - descriptors: function(chart) { - var cache = chart.$plugins || (chart.$plugins = {}); - if (cache.id === this._cacheId) { - return cache.descriptors; - } - - var plugins = []; - var descriptors = []; - var config = (chart && chart.config) || {}; - var options = (config.options && config.options.plugins) || {}; - - this._plugins.concat(config.plugins || []).forEach(function(plugin) { - var idx = plugins.indexOf(plugin); - if (idx !== -1) { - return; - } - - var id = plugin.id; - var opts = options[id]; - if (opts === false) { - return; - } - - if (opts === true) { - opts = helpers.clone(defaults.global.plugins[id]); - } - - plugins.push(plugin); - descriptors.push({ - plugin: plugin, - options: opts || {} - }); - }); - - cache.descriptors = descriptors; - cache.id = this._cacheId; - return descriptors; - }, - - /** - * Invalidates cache for the given chart: descriptors hold a reference on plugin option, - * but in some cases, this reference can be changed by the user when updating options. - * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167 - * @private - */ - _invalidate: function(chart) { - delete chart.$plugins; - } -}; - -/** - * Plugin extension hooks. - * @interface IPlugin - * @since 2.1.0 - */ -/** - * @method IPlugin#beforeInit - * @desc Called before initializing `chart`. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#afterInit - * @desc Called after `chart` has been initialized and before the first update. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeUpdate - * @desc Called before updating `chart`. If any plugin returns `false`, the update - * is cancelled (and thus subsequent render(s)) until another `update` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart update. - */ -/** - * @method IPlugin#afterUpdate - * @desc Called after `chart` has been updated and before rendering. Note that this - * hook will not be called if the chart update has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeDatasetsUpdate - * @desc Called before updating the `chart` datasets. If any plugin returns `false`, - * the datasets update is cancelled until another `update` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - * @returns {Boolean} false to cancel the datasets update. - * @since version 2.1.5 -*/ -/** - * @method IPlugin#afterDatasetsUpdate - * @desc Called after the `chart` datasets have been updated. Note that this hook - * will not be called if the datasets update has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - * @since version 2.1.5 - */ -/** - * @method IPlugin#beforeDatasetUpdate - * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin - * returns `false`, the datasets update is cancelled until another `update` is triggered. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Number} args.index - The dataset index. - * @param {Object} args.meta - The dataset metadata. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart datasets drawing. - */ -/** - * @method IPlugin#afterDatasetUpdate - * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note - * that this hook will not be called if the datasets update has been previously cancelled. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Number} args.index - The dataset index. - * @param {Object} args.meta - The dataset metadata. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeLayout - * @desc Called before laying out `chart`. If any plugin returns `false`, - * the layout update is cancelled until another `update` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart layout. - */ -/** - * @method IPlugin#afterLayout - * @desc Called after the `chart` has been layed out. Note that this hook will not - * be called if the layout update has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeRender - * @desc Called before rendering `chart`. If any plugin returns `false`, - * the rendering is cancelled until another `render` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart rendering. - */ -/** - * @method IPlugin#afterRender - * @desc Called after the `chart` has been fully rendered (and animation completed). Note - * that this hook will not be called if the rendering has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeDraw - * @desc Called before drawing `chart` at every animation frame specified by the given - * easing value. If any plugin returns `false`, the frame drawing is cancelled until - * another `render` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Number} easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart drawing. - */ -/** - * @method IPlugin#afterDraw - * @desc Called after the `chart` has been drawn for the specific easing value. Note - * that this hook will not be called if the drawing has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Number} easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeDatasetsDraw - * @desc Called before drawing the `chart` datasets. If any plugin returns `false`, - * the datasets drawing is cancelled until another `render` is triggered. - * @param {Chart.Controller} chart - The chart instance. - * @param {Number} easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart datasets drawing. - */ -/** - * @method IPlugin#afterDatasetsDraw - * @desc Called after the `chart` datasets have been drawn. Note that this hook - * will not be called if the datasets drawing has been previously cancelled. - * @param {Chart.Controller} chart - The chart instance. - * @param {Number} easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeDatasetDraw - * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets - * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing - * is cancelled until another `render` is triggered. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Number} args.index - The dataset index. - * @param {Object} args.meta - The dataset metadata. - * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart datasets drawing. - */ -/** - * @method IPlugin#afterDatasetDraw - * @desc Called after the `chart` datasets at the given `args.index` have been drawn - * (datasets are drawn in the reverse order). Note that this hook will not be called - * if the datasets drawing has been previously cancelled. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Number} args.index - The dataset index. - * @param {Object} args.meta - The dataset metadata. - * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeTooltipDraw - * @desc Called before drawing the `tooltip`. If any plugin returns `false`, - * the tooltip drawing is cancelled until another `render` is triggered. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Object} args.tooltip - The tooltip. - * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - * @returns {Boolean} `false` to cancel the chart tooltip drawing. - */ -/** - * @method IPlugin#afterTooltipDraw - * @desc Called after drawing the `tooltip`. Note that this hook will not - * be called if the tooltip drawing has been previously cancelled. - * @param {Chart} chart - The chart instance. - * @param {Object} args - The call arguments. - * @param {Object} args.tooltip - The tooltip. - * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#beforeEvent - * @desc Called before processing the specified `event`. If any plugin returns `false`, - * the event will be discarded. - * @param {Chart.Controller} chart - The chart instance. - * @param {IEvent} event - The event object. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#afterEvent - * @desc Called after the `event` has been consumed. Note that this hook - * will not be called if the `event` has been previously discarded. - * @param {Chart.Controller} chart - The chart instance. - * @param {IEvent} event - The event object. - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#resize - * @desc Called after the chart as been resized. - * @param {Chart.Controller} chart - The chart instance. - * @param {Number} size - The new canvas display size (eq. canvas.style width & height). - * @param {Object} options - The plugin options. - */ -/** - * @method IPlugin#destroy - * @desc Called after the chart as been destroyed. - * @param {Chart.Controller} chart - The chart instance. - * @param {Object} options - The plugin options. - */ - -},{"25":25,"45":45}],32:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); -var Ticks = require(34); - -defaults._set('scale', { - display: true, - position: 'left', - offset: false, - - // grid line settings - gridLines: { - display: true, - color: 'rgba(0, 0, 0, 0.1)', - lineWidth: 1, - drawBorder: true, - drawOnChartArea: true, - drawTicks: true, - tickMarkLength: 10, - zeroLineWidth: 1, - zeroLineColor: 'rgba(0,0,0,0.25)', - zeroLineBorderDash: [], - zeroLineBorderDashOffset: 0.0, - offsetGridLines: false, - borderDash: [], - borderDashOffset: 0.0 - }, - - // scale label - scaleLabel: { - // display property - display: false, - - // actual label - labelString: '', - - // line height - lineHeight: 1.2, - - // top/bottom padding - padding: { - top: 4, - bottom: 4 - } - }, - - // label settings - ticks: { - beginAtZero: false, - minRotation: 0, - maxRotation: 50, - mirror: false, - padding: 0, - reverse: false, - display: true, - autoSkip: true, - autoSkipPadding: 0, - labelOffset: 0, - // We pass through arrays to be rendered as multiline labels, we convert Others to strings here. - callback: Ticks.formatters.values, - minor: {}, - major: {} - } -}); - -function labelsFromTicks(ticks) { - var labels = []; - var i, ilen; - - for (i = 0, ilen = ticks.length; i < ilen; ++i) { - labels.push(ticks[i].label); - } - - return labels; -} - -function getLineValue(scale, index, offsetGridLines) { - var lineValue = scale.getPixelForTick(index); - - if (offsetGridLines) { - if (index === 0) { - lineValue -= (scale.getPixelForTick(1) - lineValue) / 2; - } else { - lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2; - } - } - return lineValue; -} - -module.exports = function(Chart) { - - function computeTextSize(context, tick, font) { - return helpers.isArray(tick) ? - helpers.longestText(context, font, tick) : - context.measureText(tick).width; - } - - function parseFontOptions(options) { - var valueOrDefault = helpers.valueOrDefault; - var globalDefaults = defaults.global; - var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize); - var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle); - var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily); - - return { - size: size, - style: style, - family: family, - font: helpers.fontString(size, style, family) - }; - } - - function parseLineHeight(options) { - return helpers.options.toLineHeight( - helpers.valueOrDefault(options.lineHeight, 1.2), - helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize)); - } - - Chart.Scale = Element.extend({ - /** - * Get the padding needed for the scale - * @method getPadding - * @private - * @returns {Padding} the necessary padding - */ - getPadding: function() { - var me = this; - return { - left: me.paddingLeft || 0, - top: me.paddingTop || 0, - right: me.paddingRight || 0, - bottom: me.paddingBottom || 0 - }; - }, - - /** - * Returns the scale tick objects ({label, major}) - * @since 2.7 - */ - getTicks: function() { - return this._ticks; - }, - - // These methods are ordered by lifecyle. Utilities then follow. - // Any function defined here is inherited by all scale types. - // Any function can be extended by the scale type - - mergeTicksOptions: function() { - var ticks = this.options.ticks; - if (ticks.minor === false) { - ticks.minor = { - display: false - }; - } - if (ticks.major === false) { - ticks.major = { - display: false - }; - } - for (var key in ticks) { - if (key !== 'major' && key !== 'minor') { - if (typeof ticks.minor[key] === 'undefined') { - ticks.minor[key] = ticks[key]; - } - if (typeof ticks.major[key] === 'undefined') { - ticks.major[key] = ticks[key]; - } - } - } - }, - beforeUpdate: function() { - helpers.callback(this.options.beforeUpdate, [this]); - }, - update: function(maxWidth, maxHeight, margins) { - var me = this; - var i, ilen, labels, label, ticks, tick; - - // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;) - me.beforeUpdate(); - - // Absorb the master measurements - me.maxWidth = maxWidth; - me.maxHeight = maxHeight; - me.margins = helpers.extend({ - left: 0, - right: 0, - top: 0, - bottom: 0 - }, margins); - me.longestTextCache = me.longestTextCache || {}; - - // Dimensions - me.beforeSetDimensions(); - me.setDimensions(); - me.afterSetDimensions(); - - // Data min/max - me.beforeDataLimits(); - me.determineDataLimits(); - me.afterDataLimits(); - - // Ticks - `this.ticks` is now DEPRECATED! - // Internal ticks are now stored as objects in the PRIVATE `this._ticks` member - // and must not be accessed directly from outside this class. `this.ticks` being - // around for long time and not marked as private, we can't change its structure - // without unexpected breaking changes. If you need to access the scale ticks, - // use scale.getTicks() instead. - - me.beforeBuildTicks(); - - // New implementations should return an array of objects but for BACKWARD COMPAT, - // we still support no return (`this.ticks` internally set by calling this method). - ticks = me.buildTicks() || []; - - me.afterBuildTicks(); - - me.beforeTickToLabelConversion(); - - // New implementations should return the formatted tick labels but for BACKWARD - // COMPAT, we still support no return (`this.ticks` internally changed by calling - // this method and supposed to contain only string values). - labels = me.convertTicksToLabels(ticks) || me.ticks; - - me.afterTickToLabelConversion(); - - me.ticks = labels; // BACKWARD COMPATIBILITY - - // IMPORTANT: from this point, we consider that `this.ticks` will NEVER change! - - // BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`) - for (i = 0, ilen = labels.length; i < ilen; ++i) { - label = labels[i]; - tick = ticks[i]; - if (!tick) { - ticks.push(tick = { - label: label, - major: false - }); - } else { - tick.label = label; - } - } - - me._ticks = ticks; - - // Tick Rotation - me.beforeCalculateTickRotation(); - me.calculateTickRotation(); - me.afterCalculateTickRotation(); - // Fit - me.beforeFit(); - me.fit(); - me.afterFit(); - // - me.afterUpdate(); - - return me.minSize; - - }, - afterUpdate: function() { - helpers.callback(this.options.afterUpdate, [this]); - }, - - // - - beforeSetDimensions: function() { - helpers.callback(this.options.beforeSetDimensions, [this]); - }, - setDimensions: function() { - var me = this; - // Set the unconstrained dimension before label rotation - if (me.isHorizontal()) { - // Reset position before calculating rotation - me.width = me.maxWidth; - me.left = 0; - me.right = me.width; - } else { - me.height = me.maxHeight; - - // Reset position before calculating rotation - me.top = 0; - me.bottom = me.height; - } - - // Reset padding - me.paddingLeft = 0; - me.paddingTop = 0; - me.paddingRight = 0; - me.paddingBottom = 0; - }, - afterSetDimensions: function() { - helpers.callback(this.options.afterSetDimensions, [this]); - }, - - // Data limits - beforeDataLimits: function() { - helpers.callback(this.options.beforeDataLimits, [this]); - }, - determineDataLimits: helpers.noop, - afterDataLimits: function() { - helpers.callback(this.options.afterDataLimits, [this]); - }, - - // - beforeBuildTicks: function() { - helpers.callback(this.options.beforeBuildTicks, [this]); - }, - buildTicks: helpers.noop, - afterBuildTicks: function() { - helpers.callback(this.options.afterBuildTicks, [this]); - }, - - beforeTickToLabelConversion: function() { - helpers.callback(this.options.beforeTickToLabelConversion, [this]); - }, - convertTicksToLabels: function() { - var me = this; - // Convert ticks to strings - var tickOpts = me.options.ticks; - me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this); - }, - afterTickToLabelConversion: function() { - helpers.callback(this.options.afterTickToLabelConversion, [this]); - }, - - // - - beforeCalculateTickRotation: function() { - helpers.callback(this.options.beforeCalculateTickRotation, [this]); - }, - calculateTickRotation: function() { - var me = this; - var context = me.ctx; - var tickOpts = me.options.ticks; - var labels = labelsFromTicks(me._ticks); - - // Get the width of each grid by calculating the difference - // between x offsets between 0 and 1. - var tickFont = parseFontOptions(tickOpts); - context.font = tickFont.font; - - var labelRotation = tickOpts.minRotation || 0; - - if (labels.length && me.options.display && me.isHorizontal()) { - var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache); - var labelWidth = originalLabelWidth; - var cosRotation, sinRotation; - - // Allow 3 pixels x2 padding either side for label readability - var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6; - - // Max label rotation can be set or default to 90 - also act as a loop counter - while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) { - var angleRadians = helpers.toRadians(labelRotation); - cosRotation = Math.cos(angleRadians); - sinRotation = Math.sin(angleRadians); - - if (sinRotation * originalLabelWidth > me.maxHeight) { - // go back one step - labelRotation--; - break; - } - - labelRotation++; - labelWidth = cosRotation * originalLabelWidth; - } - } - - me.labelRotation = labelRotation; - }, - afterCalculateTickRotation: function() { - helpers.callback(this.options.afterCalculateTickRotation, [this]); - }, - - // - - beforeFit: function() { - helpers.callback(this.options.beforeFit, [this]); - }, - fit: function() { - var me = this; - // Reset - var minSize = me.minSize = { - width: 0, - height: 0 - }; - - var labels = labelsFromTicks(me._ticks); - - var opts = me.options; - var tickOpts = opts.ticks; - var scaleLabelOpts = opts.scaleLabel; - var gridLineOpts = opts.gridLines; - var display = opts.display; - var isHorizontal = me.isHorizontal(); - - var tickFont = parseFontOptions(tickOpts); - var tickMarkLength = opts.gridLines.tickMarkLength; - - // Width - if (isHorizontal) { - // subtract the margins to line up with the chartArea if we are a full width scale - minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth; - } else { - minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0; - } - - // height - if (isHorizontal) { - minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0; - } else { - minSize.height = me.maxHeight; // fill all the height - } - - // Are we showing a title for the scale? - if (scaleLabelOpts.display && display) { - var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts); - var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding); - var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height; - - if (isHorizontal) { - minSize.height += deltaHeight; - } else { - minSize.width += deltaHeight; - } - } - - // Don't bother fitting the ticks if we are not showing them - if (tickOpts.display && display) { - var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache); - var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels); - var lineSpace = tickFont.size * 0.5; - var tickPadding = me.options.ticks.padding; - - if (isHorizontal) { - // A horizontal axis is more constrained by the height. - me.longestLabelWidth = largestTextWidth; - - var angleRadians = helpers.toRadians(me.labelRotation); - var cosRotation = Math.cos(angleRadians); - var sinRotation = Math.sin(angleRadians); - - // TODO - improve this calculation - var labelHeight = (sinRotation * largestTextWidth) - + (tickFont.size * tallestLabelHeightInLines) - + (lineSpace * (tallestLabelHeightInLines - 1)) - + lineSpace; // padding - - minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding); - - me.ctx.font = tickFont.font; - var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font); - var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font); - - // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned - // which means that the right padding is dominated by the font height - if (me.labelRotation !== 0) { - me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges - me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3; - } else { - me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges - me.paddingRight = lastLabelWidth / 2 + 3; - } - } else { - // A vertical axis is more constrained by the width. Labels are the - // dominant factor here, so get that length first and account for padding - if (tickOpts.mirror) { - largestTextWidth = 0; - } else { - // use lineSpace for consistency with horizontal axis - // tickPadding is not implemented for horizontal - largestTextWidth += tickPadding + lineSpace; - } - - minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth); - - me.paddingTop = tickFont.size / 2; - me.paddingBottom = tickFont.size / 2; - } - } - - me.handleMargins(); - - me.width = minSize.width; - me.height = minSize.height; - }, - - /** - * Handle margins and padding interactions - * @private - */ - handleMargins: function() { - var me = this; - if (me.margins) { - me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0); - me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0); - me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0); - me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0); - } - }, - - afterFit: function() { - helpers.callback(this.options.afterFit, [this]); - }, - - // Shared Methods - isHorizontal: function() { - return this.options.position === 'top' || this.options.position === 'bottom'; - }, - isFullWidth: function() { - return (this.options.fullWidth); - }, - - // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not - getRightValue: function(rawValue) { - // Null and undefined values first - if (helpers.isNullOrUndef(rawValue)) { - return NaN; - } - // isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values - if (typeof rawValue === 'number' && !isFinite(rawValue)) { - return NaN; - } - // If it is in fact an object, dive in one more level - if (rawValue) { - if (this.isHorizontal()) { - if (rawValue.x !== undefined) { - return this.getRightValue(rawValue.x); - } - } else if (rawValue.y !== undefined) { - return this.getRightValue(rawValue.y); - } - } - - // Value is good, return it - return rawValue; - }, - - /** - * Used to get the value to display in the tooltip for the data at the given index - * @param index - * @param datasetIndex - */ - getLabelForIndex: helpers.noop, - - /** - * Returns the location of the given data point. Value can either be an index or a numerical value - * The coordinate (0, 0) is at the upper-left corner of the canvas - * @param value - * @param index - * @param datasetIndex - */ - getPixelForValue: helpers.noop, - - /** - * Used to get the data value from a given pixel. This is the inverse of getPixelForValue - * The coordinate (0, 0) is at the upper-left corner of the canvas - * @param pixel - */ - getValueForPixel: helpers.noop, - - /** - * Returns the location of the tick at the given index - * The coordinate (0, 0) is at the upper-left corner of the canvas - */ - getPixelForTick: function(index) { - var me = this; - var offset = me.options.offset; - if (me.isHorizontal()) { - var innerWidth = me.width - (me.paddingLeft + me.paddingRight); - var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1); - var pixel = (tickWidth * index) + me.paddingLeft; - - if (offset) { - pixel += tickWidth / 2; - } - - var finalVal = me.left + Math.round(pixel); - finalVal += me.isFullWidth() ? me.margins.left : 0; - return finalVal; - } - var innerHeight = me.height - (me.paddingTop + me.paddingBottom); - return me.top + (index * (innerHeight / (me._ticks.length - 1))); - }, - - /** - * Utility for getting the pixel location of a percentage of scale - * The coordinate (0, 0) is at the upper-left corner of the canvas - */ - getPixelForDecimal: function(decimal) { - var me = this; - if (me.isHorizontal()) { - var innerWidth = me.width - (me.paddingLeft + me.paddingRight); - var valueOffset = (innerWidth * decimal) + me.paddingLeft; - - var finalVal = me.left + Math.round(valueOffset); - finalVal += me.isFullWidth() ? me.margins.left : 0; - return finalVal; - } - return me.top + (decimal * me.height); - }, - - /** - * Returns the pixel for the minimum chart value - * The coordinate (0, 0) is at the upper-left corner of the canvas - */ - getBasePixel: function() { - return this.getPixelForValue(this.getBaseValue()); - }, - - getBaseValue: function() { - var me = this; - var min = me.min; - var max = me.max; - - return me.beginAtZero ? 0 : - min < 0 && max < 0 ? max : - min > 0 && max > 0 ? min : - 0; - }, - - /** - * Returns a subset of ticks to be plotted to avoid overlapping labels. - * @private - */ - _autoSkip: function(ticks) { - var skipRatio; - var me = this; - var isHorizontal = me.isHorizontal(); - var optionTicks = me.options.ticks.minor; - var tickCount = ticks.length; - var labelRotationRadians = helpers.toRadians(me.labelRotation); - var cosRotation = Math.cos(labelRotationRadians); - var longestRotatedLabel = me.longestLabelWidth * cosRotation; - var result = []; - var i, tick, shouldSkip; - - // figure out the maximum number of gridlines to show - var maxTicks; - if (optionTicks.maxTicksLimit) { - maxTicks = optionTicks.maxTicksLimit; - } - - if (isHorizontal) { - skipRatio = false; - - if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) { - skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight))); - } - - // if they defined a max number of optionTicks, - // increase skipRatio until that number is met - if (maxTicks && tickCount > maxTicks) { - skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks)); - } - } - - for (i = 0; i < tickCount; i++) { - tick = ticks[i]; - - // Since we always show the last tick,we need may need to hide the last shown one before - shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount); - if (shouldSkip && i !== tickCount - 1) { - // leave tick in place but make sure it's not displayed (#4635) - delete tick.label; - } - result.push(tick); - } - return result; - }, - - // Actually draw the scale on the canvas - // @param {rectangle} chartArea : the area of the chart to draw full grid lines on - draw: function(chartArea) { - var me = this; - var options = me.options; - if (!options.display) { - return; - } - - var context = me.ctx; - var globalDefaults = defaults.global; - var optionTicks = options.ticks.minor; - var optionMajorTicks = options.ticks.major || optionTicks; - var gridLines = options.gridLines; - var scaleLabel = options.scaleLabel; - - var isRotated = me.labelRotation !== 0; - var isHorizontal = me.isHorizontal(); - - var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks(); - var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor); - var tickFont = parseFontOptions(optionTicks); - var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor); - var majorTickFont = parseFontOptions(optionMajorTicks); - - var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0; - - var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor); - var scaleLabelFont = parseFontOptions(scaleLabel); - var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding); - var labelRotationRadians = helpers.toRadians(me.labelRotation); - - var itemsToDraw = []; - - var axisWidth = me.options.gridLines.lineWidth; - var xTickStart = options.position === 'right' ? me.right : me.right - axisWidth - tl; - var xTickEnd = options.position === 'right' ? me.right + tl : me.right; - var yTickStart = options.position === 'bottom' ? me.top + axisWidth : me.bottom - tl - axisWidth; - var yTickEnd = options.position === 'bottom' ? me.top + axisWidth + tl : me.bottom + axisWidth; - - helpers.each(ticks, function(tick, index) { - // autoskipper skipped this tick (#4635) - if (helpers.isNullOrUndef(tick.label)) { - return; - } - - var label = tick.label; - var lineWidth, lineColor, borderDash, borderDashOffset; - if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) { - // Draw the first index specially - lineWidth = gridLines.zeroLineWidth; - lineColor = gridLines.zeroLineColor; - borderDash = gridLines.zeroLineBorderDash; - borderDashOffset = gridLines.zeroLineBorderDashOffset; - } else { - lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index); - lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index); - borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash); - borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset); - } - - // Common properties - var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY; - var textAlign = 'middle'; - var textBaseline = 'middle'; - var tickPadding = optionTicks.padding; - - if (isHorizontal) { - var labelYOffset = tl + tickPadding; - - if (options.position === 'bottom') { - // bottom - textBaseline = !isRotated ? 'top' : 'middle'; - textAlign = !isRotated ? 'center' : 'right'; - labelY = me.top + labelYOffset; - } else { - // top - textBaseline = !isRotated ? 'bottom' : 'middle'; - textAlign = !isRotated ? 'center' : 'left'; - labelY = me.bottom - labelYOffset; - } - - var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1); - if (xLineValue < me.left) { - lineColor = 'rgba(0,0,0,0)'; - } - xLineValue += helpers.aliasPixel(lineWidth); - - labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option) - - tx1 = tx2 = x1 = x2 = xLineValue; - ty1 = yTickStart; - ty2 = yTickEnd; - y1 = chartArea.top; - y2 = chartArea.bottom + axisWidth; - } else { - var isLeft = options.position === 'left'; - var labelXOffset; - - if (optionTicks.mirror) { - textAlign = isLeft ? 'left' : 'right'; - labelXOffset = tickPadding; - } else { - textAlign = isLeft ? 'right' : 'left'; - labelXOffset = tl + tickPadding; - } - - labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset; - - var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1); - if (yLineValue < me.top) { - lineColor = 'rgba(0,0,0,0)'; - } - yLineValue += helpers.aliasPixel(lineWidth); - - labelY = me.getPixelForTick(index) + optionTicks.labelOffset; - - tx1 = xTickStart; - tx2 = xTickEnd; - x1 = chartArea.left; - x2 = chartArea.right + axisWidth; - ty1 = ty2 = y1 = y2 = yLineValue; - } - - itemsToDraw.push({ - tx1: tx1, - ty1: ty1, - tx2: tx2, - ty2: ty2, - x1: x1, - y1: y1, - x2: x2, - y2: y2, - labelX: labelX, - labelY: labelY, - glWidth: lineWidth, - glColor: lineColor, - glBorderDash: borderDash, - glBorderDashOffset: borderDashOffset, - rotation: -1 * labelRotationRadians, - label: label, - major: tick.major, - textBaseline: textBaseline, - textAlign: textAlign - }); - }); - - // Draw all of the tick labels, tick marks, and grid lines at the correct places - helpers.each(itemsToDraw, function(itemToDraw) { - if (gridLines.display) { - context.save(); - context.lineWidth = itemToDraw.glWidth; - context.strokeStyle = itemToDraw.glColor; - if (context.setLineDash) { - context.setLineDash(itemToDraw.glBorderDash); - context.lineDashOffset = itemToDraw.glBorderDashOffset; - } - - context.beginPath(); - - if (gridLines.drawTicks) { - context.moveTo(itemToDraw.tx1, itemToDraw.ty1); - context.lineTo(itemToDraw.tx2, itemToDraw.ty2); - } - - if (gridLines.drawOnChartArea) { - context.moveTo(itemToDraw.x1, itemToDraw.y1); - context.lineTo(itemToDraw.x2, itemToDraw.y2); - } - - context.stroke(); - context.restore(); - } - - if (optionTicks.display) { - // Make sure we draw text in the correct color and font - context.save(); - context.translate(itemToDraw.labelX, itemToDraw.labelY); - context.rotate(itemToDraw.rotation); - context.font = itemToDraw.major ? majorTickFont.font : tickFont.font; - context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor; - context.textBaseline = itemToDraw.textBaseline; - context.textAlign = itemToDraw.textAlign; - - var label = itemToDraw.label; - if (helpers.isArray(label)) { - var lineCount = label.length; - var lineHeight = tickFont.size * 1.5; - var y = me.isHorizontal() ? 0 : -lineHeight * (lineCount - 1) / 2; - - for (var i = 0; i < lineCount; ++i) { - // We just make sure the multiline element is a string here.. - context.fillText('' + label[i], 0, y); - // apply same lineSpacing as calculated @ L#320 - y += lineHeight; - } - } else { - context.fillText(label, 0, 0); - } - context.restore(); - } - }); - - if (scaleLabel.display) { - // Draw the scale label - var scaleLabelX; - var scaleLabelY; - var rotation = 0; - var halfLineHeight = parseLineHeight(scaleLabel) / 2; - - if (isHorizontal) { - scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width - scaleLabelY = options.position === 'bottom' - ? me.bottom - halfLineHeight - scaleLabelPadding.bottom - : me.top + halfLineHeight + scaleLabelPadding.top; - } else { - var isLeft = options.position === 'left'; - scaleLabelX = isLeft - ? me.left + halfLineHeight + scaleLabelPadding.top - : me.right - halfLineHeight - scaleLabelPadding.top; - scaleLabelY = me.top + ((me.bottom - me.top) / 2); - rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI; - } - - context.save(); - context.translate(scaleLabelX, scaleLabelY); - context.rotate(rotation); - context.textAlign = 'center'; - context.textBaseline = 'middle'; - context.fillStyle = scaleLabelFontColor; // render in correct colour - context.font = scaleLabelFont.font; - context.fillText(scaleLabel.labelString, 0, 0); - context.restore(); - } - - if (gridLines.drawBorder) { - // Draw the line at the edge of the axis - context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0); - context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0); - var x1 = me.left; - var x2 = me.right + axisWidth; - var y1 = me.top; - var y2 = me.bottom + axisWidth; - - var aliasPixel = helpers.aliasPixel(context.lineWidth); - if (isHorizontal) { - y1 = y2 = options.position === 'top' ? me.bottom : me.top; - y1 += aliasPixel; - y2 += aliasPixel; - } else { - x1 = x2 = options.position === 'left' ? me.right : me.left; - x1 += aliasPixel; - x2 += aliasPixel; - } - - context.beginPath(); - context.moveTo(x1, y1); - context.lineTo(x2, y2); - context.stroke(); - } - } - }); -}; - -},{"25":25,"26":26,"34":34,"45":45}],33:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var helpers = require(45); -var layouts = require(30); - -module.exports = function(Chart) { - - Chart.scaleService = { - // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then - // use the new chart options to grab the correct scale - constructors: {}, - // Use a registration function so that we can move to an ES6 map when we no longer need to support - // old browsers - - // Scale config defaults - defaults: {}, - registerScaleType: function(type, scaleConstructor, scaleDefaults) { - this.constructors[type] = scaleConstructor; - this.defaults[type] = helpers.clone(scaleDefaults); - }, - getScaleConstructor: function(type) { - return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined; - }, - getScaleDefaults: function(type) { - // Return the scale defaults merged with the global settings so that we always use the latest ones - return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {}; - }, - updateScaleDefaults: function(type, additions) { - var me = this; - if (me.defaults.hasOwnProperty(type)) { - me.defaults[type] = helpers.extend(me.defaults[type], additions); - } - }, - addScalesToLayout: function(chart) { - // Adds each scale to the chart.boxes array to be sized accordingly - helpers.each(chart.scales, function(scale) { - // Set ILayoutItem parameters for backwards compatibility - scale.fullWidth = scale.options.fullWidth; - scale.position = scale.options.position; - scale.weight = scale.options.weight; - layouts.addBox(chart, scale); - }); - } - }; -}; - -},{"25":25,"30":30,"45":45}],34:[function(require,module,exports){ -'use strict'; - -var helpers = require(45); - -/** - * Namespace to hold static tick generation functions - * @namespace Chart.Ticks - */ -module.exports = { - /** - * Namespace to hold formatters for different types of ticks - * @namespace Chart.Ticks.formatters - */ - formatters: { - /** - * Formatter for value labels - * @method Chart.Ticks.formatters.values - * @param value the value to display - * @return {String|Array} the label to display - */ - values: function(value) { - return helpers.isArray(value) ? value : '' + value; - }, - - /** - * Formatter for linear numeric ticks - * @method Chart.Ticks.formatters.linear - * @param tickValue {Number} the value to be formatted - * @param index {Number} the position of the tickValue parameter in the ticks array - * @param ticks {Array} the list of ticks being converted - * @return {String} string representation of the tickValue parameter - */ - linear: function(tickValue, index, ticks) { - // If we have lots of ticks, don't use the ones - var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0]; - - // If we have a number like 2.5 as the delta, figure out how many decimal places we need - if (Math.abs(delta) > 1) { - if (tickValue !== Math.floor(tickValue)) { - // not an integer - delta = tickValue - Math.floor(tickValue); - } - } - - var logDelta = helpers.log10(Math.abs(delta)); - var tickString = ''; - - if (tickValue !== 0) { - var numDecimal = -1 * Math.floor(logDelta); - numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places - tickString = tickValue.toFixed(numDecimal); - } else { - tickString = '0'; // never show decimal places for 0 - } - - return tickString; - }, - - logarithmic: function(tickValue, index, ticks) { - var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue)))); - - if (tickValue === 0) { - return '0'; - } else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) { - return tickValue.toExponential(); - } - return ''; - } - } -}; - -},{"45":45}],35:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); - -defaults._set('global', { - tooltips: { - enabled: true, - custom: null, - mode: 'nearest', - position: 'average', - intersect: true, - backgroundColor: 'rgba(0,0,0,0.8)', - titleFontStyle: 'bold', - titleSpacing: 2, - titleMarginBottom: 6, - titleFontColor: '#fff', - titleAlign: 'left', - bodySpacing: 2, - bodyFontColor: '#fff', - bodyAlign: 'left', - footerFontStyle: 'bold', - footerSpacing: 2, - footerMarginTop: 6, - footerFontColor: '#fff', - footerAlign: 'left', - yPadding: 6, - xPadding: 6, - caretPadding: 2, - caretSize: 5, - cornerRadius: 6, - multiKeyBackground: '#fff', - displayColors: true, - borderColor: 'rgba(0,0,0,0)', - borderWidth: 0, - callbacks: { - // Args are: (tooltipItems, data) - beforeTitle: helpers.noop, - title: function(tooltipItems, data) { - // Pick first xLabel for now - var title = ''; - var labels = data.labels; - var labelCount = labels ? labels.length : 0; - - if (tooltipItems.length > 0) { - var item = tooltipItems[0]; - - if (item.xLabel) { - title = item.xLabel; - } else if (labelCount > 0 && item.index < labelCount) { - title = labels[item.index]; - } - } - - return title; - }, - afterTitle: helpers.noop, - - // Args are: (tooltipItems, data) - beforeBody: helpers.noop, - - // Args are: (tooltipItem, data) - beforeLabel: helpers.noop, - label: function(tooltipItem, data) { - var label = data.datasets[tooltipItem.datasetIndex].label || ''; - - if (label) { - label += ': '; - } - label += tooltipItem.yLabel; - return label; - }, - labelColor: function(tooltipItem, chart) { - var meta = chart.getDatasetMeta(tooltipItem.datasetIndex); - var activeElement = meta.data[tooltipItem.index]; - var view = activeElement._view; - return { - borderColor: view.borderColor, - backgroundColor: view.backgroundColor - }; - }, - labelTextColor: function() { - return this._options.bodyFontColor; - }, - afterLabel: helpers.noop, - - // Args are: (tooltipItems, data) - afterBody: helpers.noop, - - // Args are: (tooltipItems, data) - beforeFooter: helpers.noop, - footer: helpers.noop, - afterFooter: helpers.noop - } - } -}); - -module.exports = function(Chart) { - - /** - * Helper method to merge the opacity into a color - */ - function mergeOpacity(colorString, opacity) { - var color = helpers.color(colorString); - return color.alpha(opacity * color.alpha()).rgbaString(); - } - - // Helper to push or concat based on if the 2nd parameter is an array or not - function pushOrConcat(base, toPush) { - if (toPush) { - if (helpers.isArray(toPush)) { - // base = base.concat(toPush); - Array.prototype.push.apply(base, toPush); - } else { - base.push(toPush); - } - } - - return base; - } - - // Private helper to create a tooltip item model - // @param element : the chart element (point, arc, bar) to create the tooltip item for - // @return : new tooltip item - function createTooltipItem(element) { - var xScale = element._xScale; - var yScale = element._yScale || element._scale; // handle radar || polarArea charts - var index = element._index; - var datasetIndex = element._datasetIndex; - - return { - xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '', - yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '', - index: index, - datasetIndex: datasetIndex, - x: element._model.x, - y: element._model.y - }; - } - - /** - * Helper to get the reset model for the tooltip - * @param tooltipOpts {Object} the tooltip options - */ - function getBaseModel(tooltipOpts) { - var globalDefaults = defaults.global; - var valueOrDefault = helpers.valueOrDefault; - - return { - // Positioning - xPadding: tooltipOpts.xPadding, - yPadding: tooltipOpts.yPadding, - xAlign: tooltipOpts.xAlign, - yAlign: tooltipOpts.yAlign, - - // Body - bodyFontColor: tooltipOpts.bodyFontColor, - _bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily), - _bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle), - _bodyAlign: tooltipOpts.bodyAlign, - bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize), - bodySpacing: tooltipOpts.bodySpacing, - - // Title - titleFontColor: tooltipOpts.titleFontColor, - _titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily), - _titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle), - titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize), - _titleAlign: tooltipOpts.titleAlign, - titleSpacing: tooltipOpts.titleSpacing, - titleMarginBottom: tooltipOpts.titleMarginBottom, - - // Footer - footerFontColor: tooltipOpts.footerFontColor, - _footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily), - _footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle), - footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize), - _footerAlign: tooltipOpts.footerAlign, - footerSpacing: tooltipOpts.footerSpacing, - footerMarginTop: tooltipOpts.footerMarginTop, - - // Appearance - caretSize: tooltipOpts.caretSize, - cornerRadius: tooltipOpts.cornerRadius, - backgroundColor: tooltipOpts.backgroundColor, - opacity: 0, - legendColorBackground: tooltipOpts.multiKeyBackground, - displayColors: tooltipOpts.displayColors, - borderColor: tooltipOpts.borderColor, - borderWidth: tooltipOpts.borderWidth - }; - } - - /** - * Get the size of the tooltip - */ - function getTooltipSize(tooltip, model) { - var ctx = tooltip._chart.ctx; - - var height = model.yPadding * 2; // Tooltip Padding - var width = 0; - - // Count of all lines in the body - var body = model.body; - var combinedBodyLength = body.reduce(function(count, bodyItem) { - return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length; - }, 0); - combinedBodyLength += model.beforeBody.length + model.afterBody.length; - - var titleLineCount = model.title.length; - var footerLineCount = model.footer.length; - var titleFontSize = model.titleFontSize; - var bodyFontSize = model.bodyFontSize; - var footerFontSize = model.footerFontSize; - - height += titleLineCount * titleFontSize; // Title Lines - height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing - height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin - height += combinedBodyLength * bodyFontSize; // Body Lines - height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing - height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin - height += footerLineCount * (footerFontSize); // Footer Lines - height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing - - // Title width - var widthPadding = 0; - var maxLineWidth = function(line) { - width = Math.max(width, ctx.measureText(line).width + widthPadding); - }; - - ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily); - helpers.each(model.title, maxLineWidth); - - // Body width - ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily); - helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth); - - // Body lines may include some extra width due to the color box - widthPadding = model.displayColors ? (bodyFontSize + 2) : 0; - helpers.each(body, function(bodyItem) { - helpers.each(bodyItem.before, maxLineWidth); - helpers.each(bodyItem.lines, maxLineWidth); - helpers.each(bodyItem.after, maxLineWidth); - }); - - // Reset back to 0 - widthPadding = 0; - - // Footer width - ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily); - helpers.each(model.footer, maxLineWidth); - - // Add padding - width += 2 * model.xPadding; - - return { - width: width, - height: height - }; - } - - /** - * Helper to get the alignment of a tooltip given the size - */ - function determineAlignment(tooltip, size) { - var model = tooltip._model; - var chart = tooltip._chart; - var chartArea = tooltip._chart.chartArea; - var xAlign = 'center'; - var yAlign = 'center'; - - if (model.y < size.height) { - yAlign = 'top'; - } else if (model.y > (chart.height - size.height)) { - yAlign = 'bottom'; - } - - var lf, rf; // functions to determine left, right alignment - var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart - var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges - var midX = (chartArea.left + chartArea.right) / 2; - var midY = (chartArea.top + chartArea.bottom) / 2; - - if (yAlign === 'center') { - lf = function(x) { - return x <= midX; - }; - rf = function(x) { - return x > midX; - }; - } else { - lf = function(x) { - return x <= (size.width / 2); - }; - rf = function(x) { - return x >= (chart.width - (size.width / 2)); - }; - } - - olf = function(x) { - return x + size.width + model.caretSize + model.caretPadding > chart.width; - }; - orf = function(x) { - return x - size.width - model.caretSize - model.caretPadding < 0; - }; - yf = function(y) { - return y <= midY ? 'top' : 'bottom'; - }; - - if (lf(model.x)) { - xAlign = 'left'; - - // Is tooltip too wide and goes over the right side of the chart.? - if (olf(model.x)) { - xAlign = 'center'; - yAlign = yf(model.y); - } - } else if (rf(model.x)) { - xAlign = 'right'; - - // Is tooltip too wide and goes outside left edge of canvas? - if (orf(model.x)) { - xAlign = 'center'; - yAlign = yf(model.y); - } - } - - var opts = tooltip._options; - return { - xAlign: opts.xAlign ? opts.xAlign : xAlign, - yAlign: opts.yAlign ? opts.yAlign : yAlign - }; - } - - /** - * @Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment - */ - function getBackgroundPoint(vm, size, alignment, chart) { - // Background Position - var x = vm.x; - var y = vm.y; - - var caretSize = vm.caretSize; - var caretPadding = vm.caretPadding; - var cornerRadius = vm.cornerRadius; - var xAlign = alignment.xAlign; - var yAlign = alignment.yAlign; - var paddingAndSize = caretSize + caretPadding; - var radiusAndPadding = cornerRadius + caretPadding; - - if (xAlign === 'right') { - x -= size.width; - } else if (xAlign === 'center') { - x -= (size.width / 2); - if (x + size.width > chart.width) { - x = chart.width - size.width; - } - if (x < 0) { - x = 0; - } - } - - if (yAlign === 'top') { - y += paddingAndSize; - } else if (yAlign === 'bottom') { - y -= size.height + paddingAndSize; - } else { - y -= (size.height / 2); - } - - 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: x, - y: y - }; - } - - Chart.Tooltip = Element.extend({ - initialize: function() { - this._model = getBaseModel(this._options); - this._lastActive = []; - }, - - // Get the title - // Args are: (tooltipItem, data) - getTitle: function() { - var me = this; - var opts = me._options; - var callbacks = opts.callbacks; - - var beforeTitle = callbacks.beforeTitle.apply(me, arguments); - var title = callbacks.title.apply(me, arguments); - var afterTitle = callbacks.afterTitle.apply(me, arguments); - - var lines = []; - lines = pushOrConcat(lines, beforeTitle); - lines = pushOrConcat(lines, title); - lines = pushOrConcat(lines, afterTitle); - - return lines; - }, - - // Args are: (tooltipItem, data) - getBeforeBody: function() { - var lines = this._options.callbacks.beforeBody.apply(this, arguments); - return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; - }, - - // Args are: (tooltipItem, data) - getBody: function(tooltipItems, data) { - var me = this; - var callbacks = me._options.callbacks; - var bodyItems = []; - - helpers.each(tooltipItems, function(tooltipItem) { - var bodyItem = { - before: [], - lines: [], - after: [] - }; - pushOrConcat(bodyItem.before, callbacks.beforeLabel.call(me, tooltipItem, data)); - pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data)); - pushOrConcat(bodyItem.after, callbacks.afterLabel.call(me, tooltipItem, data)); - - bodyItems.push(bodyItem); - }); - - return bodyItems; - }, - - // Args are: (tooltipItem, data) - getAfterBody: function() { - var lines = this._options.callbacks.afterBody.apply(this, arguments); - return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : []; - }, - - // Get the footer and beforeFooter and afterFooter lines - // Args are: (tooltipItem, data) - getFooter: function() { - var me = this; - var callbacks = me._options.callbacks; - - var beforeFooter = callbacks.beforeFooter.apply(me, arguments); - var footer = callbacks.footer.apply(me, arguments); - var afterFooter = callbacks.afterFooter.apply(me, arguments); - - var lines = []; - lines = pushOrConcat(lines, beforeFooter); - lines = pushOrConcat(lines, footer); - lines = pushOrConcat(lines, afterFooter); - - return lines; - }, - - update: function(changed) { - var me = this; - var opts = me._options; - - // Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition - // that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time - // which breaks any animations. - var existingModel = me._model; - var model = me._model = getBaseModel(opts); - var active = me._active; - - var data = me._data; - - // In the case where active.length === 0 we need to keep these at existing values for good animations - var alignment = { - xAlign: existingModel.xAlign, - yAlign: existingModel.yAlign - }; - var backgroundPoint = { - x: existingModel.x, - y: existingModel.y - }; - var tooltipSize = { - width: existingModel.width, - height: existingModel.height - }; - var tooltipPosition = { - x: existingModel.caretX, - y: existingModel.caretY - }; - - var i, len; - - if (active.length) { - model.opacity = 1; - - var labelColors = []; - var labelTextColors = []; - tooltipPosition = Chart.Tooltip.positioners[opts.position].call(me, active, me._eventPosition); - - var tooltipItems = []; - for (i = 0, len = active.length; i < len; ++i) { - tooltipItems.push(createTooltipItem(active[i])); - } - - // If the user provided a filter function, use it to modify the tooltip items - if (opts.filter) { - tooltipItems = tooltipItems.filter(function(a) { - return opts.filter(a, data); - }); - } - - // If the user provided a sorting function, use it to modify the tooltip items - if (opts.itemSort) { - tooltipItems = tooltipItems.sort(function(a, b) { - return opts.itemSort(a, b, data); - }); - } - - // Determine colors for boxes - helpers.each(tooltipItems, function(tooltipItem) { - labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart)); - labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart)); - }); - - - // Build the Text Lines - model.title = me.getTitle(tooltipItems, data); - model.beforeBody = me.getBeforeBody(tooltipItems, data); - model.body = me.getBody(tooltipItems, data); - model.afterBody = me.getAfterBody(tooltipItems, data); - model.footer = me.getFooter(tooltipItems, data); - - // Initial positioning and colors - model.x = Math.round(tooltipPosition.x); - model.y = Math.round(tooltipPosition.y); - model.caretPadding = opts.caretPadding; - model.labelColors = labelColors; - model.labelTextColors = labelTextColors; - - // data points - model.dataPoints = tooltipItems; - - // We need to determine alignment of the tooltip - tooltipSize = getTooltipSize(this, model); - alignment = determineAlignment(this, tooltipSize); - // Final Size and Position - backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart); - } else { - model.opacity = 0; - } - - model.xAlign = alignment.xAlign; - model.yAlign = alignment.yAlign; - model.x = backgroundPoint.x; - model.y = backgroundPoint.y; - model.width = tooltipSize.width; - model.height = tooltipSize.height; - - // Point where the caret on the tooltip points to - model.caretX = tooltipPosition.x; - model.caretY = tooltipPosition.y; - - me._model = model; - - if (changed && opts.custom) { - opts.custom.call(me, model); - } - - return me; - }, - drawCaret: function(tooltipPoint, size) { - var ctx = this._chart.ctx; - var vm = this._view; - var caretPosition = this.getCaretPosition(tooltipPoint, size, vm); - - ctx.lineTo(caretPosition.x1, caretPosition.y1); - ctx.lineTo(caretPosition.x2, caretPosition.y2); - ctx.lineTo(caretPosition.x3, caretPosition.y3); - }, - getCaretPosition: function(tooltipPoint, size, vm) { - var x1, x2, x3, y1, y2, y3; - var caretSize = vm.caretSize; - var cornerRadius = vm.cornerRadius; - var xAlign = vm.xAlign; - var yAlign = vm.yAlign; - var ptX = tooltipPoint.x; - var ptY = tooltipPoint.y; - var width = size.width; - var height = size.height; - - if (yAlign === 'center') { - y2 = ptY + (height / 2); - - if (xAlign === 'left') { - x1 = ptX; - x2 = x1 - caretSize; - x3 = x1; - - y1 = y2 + caretSize; - y3 = y2 - caretSize; - } else { - x1 = ptX + width; - x2 = x1 + caretSize; - x3 = x1; - - y1 = y2 - caretSize; - y3 = y2 + caretSize; - } - } else { - if (xAlign === 'left') { - x2 = ptX + cornerRadius + (caretSize); - x1 = x2 - caretSize; - x3 = x2 + caretSize; - } else if (xAlign === 'right') { - x2 = ptX + width - cornerRadius - caretSize; - x1 = x2 - caretSize; - x3 = x2 + caretSize; - } else { - x2 = vm.caretX; - x1 = x2 - caretSize; - x3 = x2 + caretSize; - } - if (yAlign === 'top') { - y1 = ptY; - y2 = y1 - caretSize; - y3 = y1; - } else { - y1 = ptY + height; - y2 = y1 + caretSize; - y3 = y1; - // invert drawing order - var tmp = x3; - x3 = x1; - x1 = tmp; - } - } - return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3}; - }, - drawTitle: function(pt, vm, ctx, opacity) { - var title = vm.title; - - if (title.length) { - ctx.textAlign = vm._titleAlign; - ctx.textBaseline = 'top'; - - var titleFontSize = vm.titleFontSize; - var titleSpacing = vm.titleSpacing; - - ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity); - ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily); - - var i, len; - for (i = 0, len = title.length; i < len; ++i) { - ctx.fillText(title[i], pt.x, pt.y); - pt.y += titleFontSize + titleSpacing; // Line Height and spacing - - if (i + 1 === title.length) { - pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing - } - } - } - }, - drawBody: function(pt, vm, ctx, opacity) { - var bodyFontSize = vm.bodyFontSize; - var bodySpacing = vm.bodySpacing; - var body = vm.body; - - ctx.textAlign = vm._bodyAlign; - ctx.textBaseline = 'top'; - ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily); - - // Before Body - var xLinePadding = 0; - var fillLineOfText = function(line) { - ctx.fillText(line, pt.x + xLinePadding, pt.y); - pt.y += bodyFontSize + bodySpacing; - }; - - // Before body lines - ctx.fillStyle = mergeOpacity(vm.bodyFontColor, opacity); - helpers.each(vm.beforeBody, fillLineOfText); - - var drawColorBoxes = vm.displayColors; - xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0; - - // Draw body lines now - helpers.each(body, function(bodyItem, i) { - var textColor = mergeOpacity(vm.labelTextColors[i], opacity); - ctx.fillStyle = textColor; - helpers.each(bodyItem.before, fillLineOfText); - - helpers.each(bodyItem.lines, function(line) { - // Draw Legend-like boxes if needed - if (drawColorBoxes) { - // Fill a white rect so that colours merge nicely if the opacity is < 1 - ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity); - ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize); - - // Border - ctx.lineWidth = 1; - ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity); - ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize); - - // Inner square - ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity); - ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2); - ctx.fillStyle = textColor; - } - - fillLineOfText(line); - }); - - helpers.each(bodyItem.after, fillLineOfText); - }); - - // Reset back to 0 for after body - xLinePadding = 0; - - // After body lines - helpers.each(vm.afterBody, fillLineOfText); - pt.y -= bodySpacing; // Remove last body spacing - }, - drawFooter: function(pt, vm, ctx, opacity) { - var footer = vm.footer; - - if (footer.length) { - pt.y += vm.footerMarginTop; - - ctx.textAlign = vm._footerAlign; - ctx.textBaseline = 'top'; - - ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity); - ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily); - - helpers.each(footer, function(line) { - ctx.fillText(line, pt.x, pt.y); - pt.y += vm.footerFontSize + vm.footerSpacing; - }); - } - }, - drawBackground: function(pt, vm, ctx, tooltipSize, opacity) { - ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity); - ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity); - ctx.lineWidth = vm.borderWidth; - var xAlign = vm.xAlign; - var yAlign = vm.yAlign; - var x = pt.x; - var y = pt.y; - var width = tooltipSize.width; - var height = tooltipSize.height; - var radius = vm.cornerRadius; - - ctx.beginPath(); - ctx.moveTo(x + radius, y); - if (yAlign === 'top') { - this.drawCaret(pt, tooltipSize); - } - ctx.lineTo(x + width - radius, y); - ctx.quadraticCurveTo(x + width, y, x + width, y + radius); - if (yAlign === 'center' && xAlign === 'right') { - this.drawCaret(pt, tooltipSize); - } - ctx.lineTo(x + width, y + height - radius); - ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height); - if (yAlign === 'bottom') { - this.drawCaret(pt, tooltipSize); - } - ctx.lineTo(x + radius, y + height); - ctx.quadraticCurveTo(x, y + height, x, y + height - radius); - if (yAlign === 'center' && xAlign === 'left') { - this.drawCaret(pt, tooltipSize); - } - ctx.lineTo(x, y + radius); - ctx.quadraticCurveTo(x, y, x + radius, y); - ctx.closePath(); - - ctx.fill(); - - if (vm.borderWidth > 0) { - ctx.stroke(); - } - }, - draw: function() { - var ctx = this._chart.ctx; - var vm = this._view; - - if (vm.opacity === 0) { - return; - } - - var tooltipSize = { - width: vm.width, - height: vm.height - }; - var pt = { - x: vm.x, - y: vm.y - }; - - // IE11/Edge does not like very small opacities, so snap to 0 - var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity; - - // Truthy/falsey value for empty tooltip - var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length; - - if (this._options.enabled && hasTooltipContent) { - // Draw Background - this.drawBackground(pt, vm, ctx, tooltipSize, opacity); - - // Draw Title, Body, and Footer - pt.x += vm.xPadding; - pt.y += vm.yPadding; - - // Titles - this.drawTitle(pt, vm, ctx, opacity); - - // Body - this.drawBody(pt, vm, ctx, opacity); - - // Footer - this.drawFooter(pt, vm, ctx, opacity); - } - }, - - /** - * Handle an event - * @private - * @param {IEvent} event - The event to handle - * @returns {Boolean} true if the tooltip changed - */ - handleEvent: function(e) { - var me = this; - var options = me._options; - var changed = false; - - me._lastActive = me._lastActive || []; - - // Find Active Elements for tooltips - if (e.type === 'mouseout') { - me._active = []; - } else { - me._active = me._chart.getElementsAtEventForMode(e, options.mode, options); - } - - // Remember Last Actives - changed = !helpers.arrayEquals(me._active, me._lastActive); - - // Only handle target event on tooltip change - if (changed) { - me._lastActive = me._active; - - if (options.enabled || options.custom) { - me._eventPosition = { - x: e.x, - y: e.y - }; - - me.update(true); - me.pivot(); - } - } - - return changed; - } - }); - - /** - * @namespace Chart.Tooltip.positioners - */ - Chart.Tooltip.positioners = { - /** - * Average mode places the tooltip at the average position of the elements shown - * @function Chart.Tooltip.positioners.average - * @param elements {ChartElement[]} the elements being displayed in the tooltip - * @returns {Point} tooltip position - */ - average: function(elements) { - if (!elements.length) { - return false; - } - - var i, len; - var x = 0; - var y = 0; - var count = 0; - - for (i = 0, len = elements.length; i < len; ++i) { - var el = elements[i]; - if (el && el.hasValue()) { - var pos = el.tooltipPosition(); - x += pos.x; - y += pos.y; - ++count; - } - } - - return { - x: Math.round(x / count), - y: Math.round(y / count) - }; - }, - - /** - * Gets the tooltip position nearest of the item nearest to the event position - * @function Chart.Tooltip.positioners.nearest - * @param elements {Chart.Element[]} the tooltip elements - * @param eventPosition {Point} the position of the event in canvas coordinates - * @returns {Point} the tooltip position - */ - nearest: function(elements, eventPosition) { - var x = eventPosition.x; - var y = eventPosition.y; - var minDistance = Number.POSITIVE_INFINITY; - var i, len, nearestElement; - - for (i = 0, len = elements.length; i < len; ++i) { - var el = elements[i]; - if (el && el.hasValue()) { - var center = el.getCenterPoint(); - var d = helpers.distanceBetweenPoints(eventPosition, center); - - if (d < minDistance) { - minDistance = d; - nearestElement = el; - } - } - } - - if (nearestElement) { - var tp = nearestElement.tooltipPosition(); - x = tp.x; - y = tp.y; - } - - return { - x: x, - y: y - }; - } - }; -}; - -},{"25":25,"26":26,"45":45}],36:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); - -defaults._set('global', { - elements: { - arc: { - backgroundColor: defaults.global.defaultColor, - borderColor: '#fff', - borderWidth: 2 - } - } -}); - -module.exports = Element.extend({ - inLabelRange: function(mouseX) { - var vm = this._view; - - if (vm) { - return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2)); - } - return false; - }, - - inRange: function(chartX, chartY) { - var vm = this._view; - - if (vm) { - var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY}); - var angle = pointRelativePosition.angle; - var distance = pointRelativePosition.distance; - - // Sanitise angle range - var startAngle = vm.startAngle; - var endAngle = vm.endAngle; - while (endAngle < startAngle) { - endAngle += 2.0 * Math.PI; - } - while (angle > endAngle) { - angle -= 2.0 * Math.PI; - } - while (angle < startAngle) { - angle += 2.0 * Math.PI; - } - - // Check if within the range of the open/close angle - var betweenAngles = (angle >= startAngle && angle <= endAngle); - var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius); - - return (betweenAngles && withinRadius); - } - return false; - }, - - getCenterPoint: function() { - var vm = this._view; - var halfAngle = (vm.startAngle + vm.endAngle) / 2; - var halfRadius = (vm.innerRadius + vm.outerRadius) / 2; - return { - x: vm.x + Math.cos(halfAngle) * halfRadius, - y: vm.y + Math.sin(halfAngle) * halfRadius - }; - }, - - getArea: function() { - var vm = this._view; - return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2)); - }, - - tooltipPosition: function() { - var vm = this._view; - var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2); - var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius; - - return { - x: vm.x + (Math.cos(centreAngle) * rangeFromCentre), - y: vm.y + (Math.sin(centreAngle) * rangeFromCentre) - }; - }, - - draw: function() { - var ctx = this._chart.ctx; - var vm = this._view; - var sA = vm.startAngle; - var eA = vm.endAngle; - - ctx.beginPath(); - - ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA); - ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true); - - ctx.closePath(); - ctx.strokeStyle = vm.borderColor; - ctx.lineWidth = vm.borderWidth; - - ctx.fillStyle = vm.backgroundColor; - - ctx.fill(); - ctx.lineJoin = 'bevel'; - - if (vm.borderWidth) { - ctx.stroke(); - } - } -}); - -},{"25":25,"26":26,"45":45}],37:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); - -var globalDefaults = defaults.global; - -defaults._set('global', { - elements: { - line: { - tension: 0.4, - backgroundColor: globalDefaults.defaultColor, - borderWidth: 3, - borderColor: globalDefaults.defaultColor, - borderCapStyle: 'butt', - borderDash: [], - borderDashOffset: 0.0, - borderJoinStyle: 'miter', - capBezierPoints: true, - fill: true, // do we fill in the area between the line and its base axis - } - } -}); - -module.exports = Element.extend({ - draw: function() { - var me = this; - var vm = me._view; - var ctx = me._chart.ctx; - var spanGaps = vm.spanGaps; - var points = me._children.slice(); // clone array - var globalOptionLineElements = globalDefaults.elements.line; - var lastDrawnIndex = -1; - var index, current, previous, currentVM; - - // If we are looping, adding the first point again - if (me._loop && points.length) { - points.push(points[0]); - } - - ctx.save(); - - // Stroke Line Options - ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle; - - // IE 9 and 10 do not support line dash - if (ctx.setLineDash) { - ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash); - } - - ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset; - ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle; - ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth; - ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor; - - // Stroke Line - ctx.beginPath(); - lastDrawnIndex = -1; - - for (index = 0; index < points.length; ++index) { - current = points[index]; - previous = helpers.previousItem(points, index); - currentVM = current._view; - - // First point moves to it's starting position no matter what - if (index === 0) { - if (!currentVM.skip) { - ctx.moveTo(currentVM.x, currentVM.y); - lastDrawnIndex = index; - } - } else { - previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex]; - - if (!currentVM.skip) { - if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) { - // There was a gap and this is the first point after the gap - ctx.moveTo(currentVM.x, currentVM.y); - } else { - // Line to next point - helpers.canvas.lineTo(ctx, previous._view, current._view); - } - lastDrawnIndex = index; - } - } - } - - ctx.stroke(); - ctx.restore(); - } -}); - -},{"25":25,"26":26,"45":45}],38:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); -var helpers = require(45); - -var defaultColor = defaults.global.defaultColor; - -defaults._set('global', { - elements: { - point: { - radius: 3, - pointStyle: 'circle', - backgroundColor: defaultColor, - borderColor: defaultColor, - borderWidth: 1, - // Hover - hitRadius: 1, - hoverRadius: 4, - hoverBorderWidth: 1 - } - } -}); - -function xRange(mouseX) { - var vm = this._view; - return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false; -} - -function yRange(mouseY) { - var vm = this._view; - return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false; -} - -module.exports = Element.extend({ - inRange: function(mouseX, mouseY) { - var vm = this._view; - return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false; - }, - - inLabelRange: xRange, - inXRange: xRange, - inYRange: yRange, - - getCenterPoint: function() { - var vm = this._view; - return { - x: vm.x, - y: vm.y - }; - }, - - getArea: function() { - return Math.PI * Math.pow(this._view.radius, 2); - }, - - tooltipPosition: function() { - var vm = this._view; - return { - x: vm.x, - y: vm.y, - padding: vm.radius + vm.borderWidth - }; - }, - - draw: function(chartArea) { - var vm = this._view; - var model = this._model; - var ctx = this._chart.ctx; - var pointStyle = vm.pointStyle; - var radius = vm.radius; - var x = vm.x; - var y = vm.y; - var color = helpers.color; - var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.) - var ratio = 0; - - if (vm.skip) { - return; - } - - ctx.strokeStyle = vm.borderColor || defaultColor; - ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth); - ctx.fillStyle = vm.backgroundColor || defaultColor; - - // Cliping for Points. - // going out from inner charArea? - if ((chartArea !== undefined) && ((model.x < chartArea.left) || (chartArea.right * errMargin < model.x) || (model.y < chartArea.top) || (chartArea.bottom * errMargin < model.y))) { - // Point fade out - if (model.x < chartArea.left) { - ratio = (x - model.x) / (chartArea.left - model.x); - } else if (chartArea.right * errMargin < model.x) { - ratio = (model.x - x) / (model.x - chartArea.right); - } else if (model.y < chartArea.top) { - ratio = (y - model.y) / (chartArea.top - model.y); - } else if (chartArea.bottom * errMargin < model.y) { - ratio = (model.y - y) / (model.y - chartArea.bottom); - } - ratio = Math.round(ratio * 100) / 100; - ctx.strokeStyle = color(ctx.strokeStyle).alpha(ratio).rgbString(); - ctx.fillStyle = color(ctx.fillStyle).alpha(ratio).rgbString(); - } - - helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y); - } -}); - -},{"25":25,"26":26,"45":45}],39:[function(require,module,exports){ -'use strict'; - -var defaults = require(25); -var Element = require(26); - -defaults._set('global', { - elements: { - rectangle: { - backgroundColor: defaults.global.defaultColor, - borderColor: defaults.global.defaultColor, - borderSkipped: 'bottom', - borderWidth: 0 - } - } -}); - -function isVertical(bar) { - return bar._view.width !== undefined; -} - -/** - * Helper function to get the bounds of the bar regardless of the orientation - * @param bar {Chart.Element.Rectangle} the bar - * @return {Bounds} bounds of the bar - * @private - */ -function getBarBounds(bar) { - var vm = bar._view; - var x1, x2, y1, y2; - - if (isVertical(bar)) { - // vertical - var halfWidth = vm.width / 2; - x1 = vm.x - halfWidth; - x2 = vm.x + halfWidth; - y1 = Math.min(vm.y, vm.base); - y2 = Math.max(vm.y, vm.base); - } else { - // horizontal bar - var halfHeight = vm.height / 2; - x1 = Math.min(vm.x, vm.base); - x2 = Math.max(vm.x, vm.base); - y1 = vm.y - halfHeight; - y2 = vm.y + halfHeight; - } - - return { - left: x1, - top: y1, - right: x2, - bottom: y2 - }; -} - -module.exports = Element.extend({ - draw: function() { - var ctx = this._chart.ctx; - var vm = this._view; - var left, right, top, bottom, signX, signY, borderSkipped; - var borderWidth = vm.borderWidth; - - if (!vm.horizontal) { - // bar - left = vm.x - vm.width / 2; - right = vm.x + vm.width / 2; - top = vm.y; - bottom = vm.base; - signX = 1; - signY = bottom > top ? 1 : -1; - borderSkipped = vm.borderSkipped || 'bottom'; - } else { - // horizontal bar - left = vm.base; - right = vm.x; - top = vm.y - vm.height / 2; - bottom = vm.y + vm.height / 2; - signX = right > left ? 1 : -1; - signY = 1; - borderSkipped = vm.borderSkipped || 'left'; - } - - // Canvas doesn't allow us to stroke inside the width so we can - // adjust the sizes to fit if we're setting a stroke on the line - if (borderWidth) { - // borderWidth shold be less than bar width and bar height. - var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom)); - borderWidth = borderWidth > barSize ? barSize : borderWidth; - var halfStroke = borderWidth / 2; - // Adjust borderWidth when bar top position is near vm.base(zero). - var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0); - var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0); - var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0); - var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0); - // not become a vertical line? - if (borderLeft !== borderRight) { - top = borderTop; - bottom = borderBottom; - } - // not become a horizontal line? - if (borderTop !== borderBottom) { - left = borderLeft; - right = borderRight; - } - } - - ctx.beginPath(); - ctx.fillStyle = vm.backgroundColor; - ctx.strokeStyle = vm.borderColor; - ctx.lineWidth = borderWidth; - - // Corner points, from bottom-left to bottom-right clockwise - // | 1 2 | - // | 0 3 | - var corners = [ - [left, bottom], - [left, top], - [right, top], - [right, bottom] - ]; - - // Find first (starting) corner with fallback to 'bottom' - var borders = ['bottom', 'left', 'top', 'right']; - var startCorner = borders.indexOf(borderSkipped, 0); - if (startCorner === -1) { - startCorner = 0; - } - - function cornerAt(index) { - return corners[(startCorner + index) % 4]; - } - - // Draw rectangle from 'startCorner' - var corner = cornerAt(0); - ctx.moveTo(corner[0], corner[1]); - - for (var i = 1; i < 4; i++) { - corner = cornerAt(i); - ctx.lineTo(corner[0], corner[1]); - } - - ctx.fill(); - if (borderWidth) { - ctx.stroke(); - } - }, - - height: function() { - var vm = this._view; - return vm.base - vm.y; - }, - - inRange: function(mouseX, mouseY) { - var inRange = false; - - if (this._view) { - var bounds = getBarBounds(this); - inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom; - } - - return inRange; - }, - - inLabelRange: function(mouseX, mouseY) { - var me = this; - if (!me._view) { - return false; - } - - var inRange = false; - var bounds = getBarBounds(me); - - if (isVertical(me)) { - inRange = mouseX >= bounds.left && mouseX <= bounds.right; - } else { - inRange = mouseY >= bounds.top && mouseY <= bounds.bottom; - } - - return inRange; - }, - - inXRange: function(mouseX) { - var bounds = getBarBounds(this); - return mouseX >= bounds.left && mouseX <= bounds.right; - }, - - inYRange: function(mouseY) { - var bounds = getBarBounds(this); - return mouseY >= bounds.top && mouseY <= bounds.bottom; - }, - - getCenterPoint: function() { - var vm = this._view; - var x, y; - if (isVertical(this)) { - x = vm.x; - y = (vm.y + vm.base) / 2; - } else { - x = (vm.x + vm.base) / 2; - y = vm.y; - } - - return {x: x, y: y}; - }, - - getArea: function() { - var vm = this._view; - return vm.width * Math.abs(vm.y - vm.base); - }, - - tooltipPosition: function() { - var vm = this._view; - return { - x: vm.x, - y: vm.y - }; - } -}); - -},{"25":25,"26":26}],40:[function(require,module,exports){ -'use strict'; - -module.exports = {}; -module.exports.Arc = require(36); -module.exports.Line = require(37); -module.exports.Point = require(38); -module.exports.Rectangle = require(39); - -},{"36":36,"37":37,"38":38,"39":39}],41:[function(require,module,exports){ -'use strict'; - -var helpers = require(42); - -/** - * @namespace Chart.helpers.canvas - */ -var exports = module.exports = { - /** - * Clears the entire canvas associated to the given `chart`. - * @param {Chart} chart - The chart for which to clear the canvas. - */ - clear: function(chart) { - chart.ctx.clearRect(0, 0, chart.width, chart.height); - }, - - /** - * Creates a "path" for a rectangle with rounded corners at position (x, y) with a - * given size (width, height) and the same `radius` for all corners. - * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context. - * @param {Number} x - The x axis of the coordinate for the rectangle starting point. - * @param {Number} y - The y axis of the coordinate for the rectangle starting point. - * @param {Number} width - The rectangle's width. - * @param {Number} height - The rectangle's height. - * @param {Number} radius - The rounded amount (in pixels) for the four corners. - * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object? - */ - roundedRect: function(ctx, x, y, width, height, radius) { - if (radius) { - var rx = Math.min(radius, width / 2); - var ry = Math.min(radius, height / 2); - - ctx.moveTo(x + rx, y); - ctx.lineTo(x + width - rx, y); - ctx.quadraticCurveTo(x + width, y, x + width, y + ry); - ctx.lineTo(x + width, y + height - ry); - ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height); - ctx.lineTo(x + rx, y + height); - ctx.quadraticCurveTo(x, y + height, x, y + height - ry); - ctx.lineTo(x, y + ry); - ctx.quadraticCurveTo(x, y, x + rx, y); - } else { - ctx.rect(x, y, width, height); - } - }, - - drawPoint: function(ctx, style, radius, x, y) { - var type, edgeLength, xOffset, yOffset, height, size; - - if (style && typeof style === 'object') { - type = style.toString(); - if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { - ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height); - return; - } - } - - if (isNaN(radius) || radius <= 0) { - return; - } - - switch (style) { - // Default includes circle - default: - ctx.beginPath(); - ctx.arc(x, y, radius, 0, Math.PI * 2); - ctx.closePath(); - ctx.fill(); - break; - case 'triangle': - ctx.beginPath(); - edgeLength = 3 * radius / Math.sqrt(3); - height = edgeLength * Math.sqrt(3) / 2; - ctx.moveTo(x - edgeLength / 2, y + height / 3); - ctx.lineTo(x + edgeLength / 2, y + height / 3); - ctx.lineTo(x, y - 2 * height / 3); - ctx.closePath(); - ctx.fill(); - break; - case 'rect': - size = 1 / Math.SQRT2 * radius; - ctx.beginPath(); - ctx.fillRect(x - size, y - size, 2 * size, 2 * size); - ctx.strokeRect(x - size, y - size, 2 * size, 2 * size); - break; - case 'rectRounded': - var offset = radius / Math.SQRT2; - var leftX = x - offset; - var topY = y - offset; - var sideSize = Math.SQRT2 * radius; - ctx.beginPath(); - this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius / 2); - ctx.closePath(); - ctx.fill(); - break; - case 'rectRot': - size = 1 / Math.SQRT2 * radius; - ctx.beginPath(); - ctx.moveTo(x - size, y); - ctx.lineTo(x, y + size); - ctx.lineTo(x + size, y); - ctx.lineTo(x, y - size); - ctx.closePath(); - ctx.fill(); - break; - case 'cross': - ctx.beginPath(); - ctx.moveTo(x, y + radius); - ctx.lineTo(x, y - radius); - ctx.moveTo(x - radius, y); - ctx.lineTo(x + radius, y); - ctx.closePath(); - break; - case 'crossRot': - ctx.beginPath(); - xOffset = Math.cos(Math.PI / 4) * radius; - yOffset = Math.sin(Math.PI / 4) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.moveTo(x - xOffset, y + yOffset); - ctx.lineTo(x + xOffset, y - yOffset); - ctx.closePath(); - break; - case 'star': - ctx.beginPath(); - ctx.moveTo(x, y + radius); - ctx.lineTo(x, y - radius); - ctx.moveTo(x - radius, y); - ctx.lineTo(x + radius, y); - xOffset = Math.cos(Math.PI / 4) * radius; - yOffset = Math.sin(Math.PI / 4) * radius; - ctx.moveTo(x - xOffset, y - yOffset); - ctx.lineTo(x + xOffset, y + yOffset); - ctx.moveTo(x - xOffset, y + yOffset); - ctx.lineTo(x + xOffset, y - yOffset); - ctx.closePath(); - break; - case 'line': - ctx.beginPath(); - ctx.moveTo(x - radius, y); - ctx.lineTo(x + radius, y); - ctx.closePath(); - break; - case 'dash': - ctx.beginPath(); - ctx.moveTo(x, y); - ctx.lineTo(x + radius, y); - ctx.closePath(); - break; - } - - ctx.stroke(); - }, - - clipArea: function(ctx, area) { - ctx.save(); - ctx.beginPath(); - ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); - ctx.clip(); - }, - - unclipArea: function(ctx) { - ctx.restore(); - }, - - lineTo: function(ctx, previous, target, flip) { - if (target.steppedLine) { - if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) { - ctx.lineTo(previous.x, target.y); - } else { - ctx.lineTo(target.x, previous.y); - } - ctx.lineTo(target.x, target.y); - return; - } - - if (!target.tension) { - ctx.lineTo(target.x, target.y); - return; - } - - ctx.bezierCurveTo( - flip ? previous.controlPointPreviousX : previous.controlPointNextX, - flip ? previous.controlPointPreviousY : previous.controlPointNextY, - flip ? target.controlPointNextX : target.controlPointPreviousX, - flip ? target.controlPointNextY : target.controlPointPreviousY, - target.x, - target.y); - } -}; - -// DEPRECATIONS - -/** - * Provided for backward compatibility, use Chart.helpers.canvas.clear instead. - * @namespace Chart.helpers.clear - * @deprecated since version 2.7.0 - * @todo remove at version 3 - * @private - */ -helpers.clear = exports.clear; - -/** - * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead. - * @namespace Chart.helpers.drawRoundedRectangle - * @deprecated since version 2.7.0 - * @todo remove at version 3 - * @private - */ -helpers.drawRoundedRectangle = function(ctx) { - ctx.beginPath(); - exports.roundedRect.apply(exports, arguments); - ctx.closePath(); -}; - -},{"42":42}],42:[function(require,module,exports){ -'use strict'; +var chartjsColor = Color; /** * @namespace Chart.helpers @@ -9802,7 +2114,7 @@ var helpers = { /** * Returns a unique id, sequentially generated from a global variable. - * @returns {Number} + * @returns {number} * @function */ uid: (function() { @@ -9815,7 +2127,7 @@ var helpers = { /** * Returns true if `value` is neither null nor undefined, else returns false. * @param {*} value - The value to test. - * @returns {Boolean} + * @returns {boolean} * @since 2.7.0 */ isNullOrUndef: function(value) { @@ -9823,25 +2135,41 @@ var helpers = { }, /** - * Returns true if `value` is an array, else returns false. + * Returns true if `value` is an array (including typed arrays), else returns false. * @param {*} value - The value to test. - * @returns {Boolean} + * @returns {boolean} * @function */ - isArray: Array.isArray ? Array.isArray : function(value) { - return Object.prototype.toString.call(value) === '[object Array]'; + isArray: function(value) { + if (Array.isArray && Array.isArray(value)) { + return true; + } + var type = Object.prototype.toString.call(value); + if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') { + return true; + } + return false; }, /** * Returns true if `value` is an object (excluding null), else returns false. * @param {*} value - The value to test. - * @returns {Boolean} + * @returns {boolean} * @since 2.7.0 */ isObject: function(value) { return value !== null && Object.prototype.toString.call(value) === '[object Object]'; }, + /** + * Returns true if `value` is a finite number, else returns false + * @param {*} value - The value to test. + * @returns {boolean} + */ + isFinite: function(value) { + return (typeof value === 'number' || value instanceof Number) && isFinite(value); + }, + /** * Returns `value` if defined, else returns `defaultValue`. * @param {*} value - The value to return if defined. @@ -9855,7 +2183,7 @@ var helpers = { /** * Returns value at the given `index` in array if defined, else returns `defaultValue`. * @param {Array} value - The array to lookup for value at `index`. - * @param {Number} index - The index in `value` to lookup for value. + * @param {number} index - The index in `value` to lookup for value. * @param {*} defaultValue - The value to return if `value[index]` is undefined. * @returns {*} */ @@ -9866,9 +2194,9 @@ var helpers = { /** * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the * value returned by `fn`. If `fn` is not a function, this method returns undefined. - * @param {Function} fn - The function to call. + * @param {function} fn - The function to call. * @param {Array|undefined|null} args - The arguments with which `fn` should be called. - * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`. + * @param {object} [thisArg] - The value of `this` provided for the call to `fn`. * @returns {*} */ callback: function(fn, args, thisArg) { @@ -9881,10 +2209,10 @@ var helpers = { * Note(SB) for performance sake, this method should only be used when loopable type * is unknown or in none intensive code (not called often and small loopable). Else * it's preferable to use a regular for() loop and save extra function calls. - * @param {Object|Array} loopable - The object or array to be iterated. - * @param {Function} fn - The function to call for each item. - * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`. - * @param {Boolean} [reverse] - If true, iterates backward on the loopable. + * @param {object|Array} loopable - The object or array to be iterated. + * @param {function} fn - The function to call for each item. + * @param {object} [thisArg] - The value of `this` provided for the call to `fn`. + * @param {boolean} [reverse] - If true, iterates backward on the loopable. */ each: function(loopable, fn, thisArg, reverse) { var i, len, keys; @@ -9910,10 +2238,10 @@ var helpers = { /** * Returns true if the `a0` and `a1` arrays have the same content, else returns false. - * @see http://stackoverflow.com/a/14853974 + * @see https://stackoverflow.com/a/14853974 * @param {Array} a0 - The array to compare * @param {Array} a1 - The array to compare - * @returns {Boolean} + * @returns {boolean} */ arrayEquals: function(a0, a1) { var i, ilen, v0, v1; @@ -9967,7 +2295,7 @@ var helpers = { /** * The default merger when Chart.helpers.merge is called without merger option. - * Note(SB): this method is also used by configMerge and scaleMerge as fallback. + * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback. * @private */ _merger: function(key, target, source, options) { @@ -9999,11 +2327,11 @@ var helpers = { /** * Recursively deep copies `source` properties into `target` with the given `options`. * IMPORTANT: `target` is not cloned and will be updated with `source` properties. - * @param {Object} target - The target object in which all sources are merged into. - * @param {Object|Array(Object)} source - Object(s) to merge into `target`. - * @param {Object} [options] - Merging options: - * @param {Function} [options.merger] - The merge method (key, target, source, options) - * @returns {Object} The `target` object. + * @param {object} target - The target object in which all sources are merged into. + * @param {object|object[]} source - Object(s) to merge into `target`. + * @param {object} [options] - Merging options: + * @param {function} [options.merger] - The merge method (key, target, source, options) + * @returns {object} The `target` object. */ merge: function(target, source, options) { var sources = helpers.isArray(source) ? source : [source]; @@ -10035,9 +2363,9 @@ var helpers = { /** * Recursively deep copies `source` properties into `target` *only* if not defined in target. * IMPORTANT: `target` is not cloned and will be updated with `source` properties. - * @param {Object} target - The target object in which all sources are merged into. - * @param {Object|Array(Object)} source - Object(s) to merge into `target`. - * @returns {Object} The `target` object. + * @param {object} target - The target object in which all sources are merged into. + * @param {object|object[]} source - Object(s) to merge into `target`. + * @returns {object} The `target` object. */ mergeIf: function(target, source) { return helpers.merge(target, source, {merger: helpers._mergerIf}); @@ -10045,19 +2373,17 @@ var helpers = { /** * Applies the contents of two or more objects together into the first object. - * @param {Object} target - The target object in which all objects are merged into. - * @param {Object} arg1 - Object containing additional properties to merge in target. - * @param {Object} argN - Additional objects containing properties to merge in target. - * @returns {Object} The `target` object. + * @param {object} target - The target object in which all objects are merged into. + * @param {object} arg1 - Object containing additional properties to merge in target. + * @param {object} argN - Additional objects containing properties to merge in target. + * @returns {object} The `target` object. */ - extend: function(target) { - var setFn = function(value, key) { - target[key] = value; - }; - for (var i = 1, ilen = arguments.length; i < ilen; ++i) { - helpers.each(arguments[i], setFn); - } - return target; + extend: Object.assign || function(target) { + return helpers.merge(target, [].slice.call(arguments, 1), { + merger: function(key, dst, src) { + dst[key] = src[key]; + } + }); }, /** @@ -10083,10 +2409,17 @@ var helpers = { ChartElement.__super__ = me.prototype; return ChartElement; + }, + + _deprecated: function(scope, value, previous, current) { + if (value !== undefined) { + console.warn(scope + ': "' + previous + + '" is deprecated. Please use "' + current + '" instead'); + } } }; -module.exports = helpers; +var helpers_core = helpers; // DEPRECATIONS @@ -10129,11 +2462,6 @@ helpers.getValueOrDefault = helpers.valueOrDefault; */ helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault; -},{}],43:[function(require,module,exports){ -'use strict'; - -var helpers = require(42); - /** * Easing functions adapted from Robert Penner's easing equations. * @namespace Chart.helpers.easingEffects @@ -10366,7 +2694,7 @@ var effects = { } }; -module.exports = { +var helpers_easing = { effects: effects }; @@ -10379,23 +2707,315 @@ module.exports = { * @todo remove at version 3 * @private */ -helpers.easingEffects = effects; +helpers_core.easingEffects = effects; -},{"42":42}],44:[function(require,module,exports){ -'use strict'; +var PI = Math.PI; +var RAD_PER_DEG = PI / 180; +var DOUBLE_PI = PI * 2; +var HALF_PI = PI / 2; +var QUARTER_PI = PI / 4; +var TWO_THIRDS_PI = PI * 2 / 3; -var helpers = require(42); +/** + * @namespace Chart.helpers.canvas + */ +var exports$1 = { + /** + * Clears the entire canvas associated to the given `chart`. + * @param {Chart} chart - The chart for which to clear the canvas. + */ + clear: function(chart) { + chart.ctx.clearRect(0, 0, chart.width, chart.height); + }, + + /** + * Creates a "path" for a rectangle with rounded corners at position (x, y) with a + * given size (width, height) and the same `radius` for all corners. + * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context. + * @param {number} x - The x axis of the coordinate for the rectangle starting point. + * @param {number} y - The y axis of the coordinate for the rectangle starting point. + * @param {number} width - The rectangle's width. + * @param {number} height - The rectangle's height. + * @param {number} radius - The rounded amount (in pixels) for the four corners. + * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object? + */ + roundedRect: function(ctx, x, y, width, height, radius) { + if (radius) { + var r = Math.min(radius, height / 2, width / 2); + var left = x + r; + var top = y + r; + var right = x + width - r; + var bottom = y + height - r; + + ctx.moveTo(x, top); + if (left < right && top < bottom) { + ctx.arc(left, top, r, -PI, -HALF_PI); + ctx.arc(right, top, r, -HALF_PI, 0); + ctx.arc(right, bottom, r, 0, HALF_PI); + ctx.arc(left, bottom, r, HALF_PI, PI); + } else if (left < right) { + ctx.moveTo(left, y); + ctx.arc(right, top, r, -HALF_PI, HALF_PI); + ctx.arc(left, top, r, HALF_PI, PI + HALF_PI); + } else if (top < bottom) { + ctx.arc(left, top, r, -PI, 0); + ctx.arc(left, bottom, r, 0, PI); + } else { + ctx.arc(left, top, r, -PI, PI); + } + ctx.closePath(); + ctx.moveTo(x, y); + } else { + ctx.rect(x, y, width, height); + } + }, + + drawPoint: function(ctx, style, radius, x, y, rotation) { + var type, xOffset, yOffset, size, cornerRadius; + var 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 includes circle + default: + ctx.arc(x, y, radius, 0, DOUBLE_PI); + 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': + // NOTE: the rounded rect implementation changed to use `arc` instead of + // `quadraticCurveTo` since it generates better results when rect is + // almost a circle. 0.516 (instead of 0.5) produces results with visually + // closer proportion to the previous impl and it is inscribed in the + // circle with `radius`. For more details, see the following PRs: + // https://github.com/chartjs/Chart.js/issues/5597 + // https://github.com/chartjs/Chart.js/issues/5858 + 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; + /* falls through */ + 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; + /* falls through */ + 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(); + ctx.stroke(); + }, + + /** + * Returns true if the point is inside the rectangle + * @param {object} point - The point to test + * @param {object} area - The rectangle + * @returns {boolean} + * @private + */ + _isPointInArea: function(point, area) { + var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error. + + return point.x > area.left - epsilon && point.x < area.right + epsilon && + point.y > area.top - epsilon && point.y < area.bottom + epsilon; + }, + + clipArea: function(ctx, area) { + ctx.save(); + ctx.beginPath(); + ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); + ctx.clip(); + }, + + unclipArea: function(ctx) { + ctx.restore(); + }, + + lineTo: function(ctx, previous, target, flip) { + var stepped = target.steppedLine; + if (stepped) { + if (stepped === 'middle') { + var midpoint = (previous.x + target.x) / 2.0; + ctx.lineTo(midpoint, flip ? target.y : previous.y); + ctx.lineTo(midpoint, flip ? previous.y : target.y); + } else if ((stepped === 'after' && !flip) || (stepped !== 'after' && flip)) { + ctx.lineTo(previous.x, target.y); + } else { + ctx.lineTo(target.x, previous.y); + } + ctx.lineTo(target.x, target.y); + return; + } + + if (!target.tension) { + ctx.lineTo(target.x, target.y); + return; + } + + ctx.bezierCurveTo( + flip ? previous.controlPointPreviousX : previous.controlPointNextX, + flip ? previous.controlPointPreviousY : previous.controlPointNextY, + flip ? target.controlPointNextX : target.controlPointPreviousX, + flip ? target.controlPointNextY : target.controlPointPreviousY, + target.x, + target.y); + } +}; + +var helpers_canvas = exports$1; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.canvas.clear instead. + * @namespace Chart.helpers.clear + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers_core.clear = exports$1.clear; + +/** + * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead. + * @namespace Chart.helpers.drawRoundedRectangle + * @deprecated since version 2.7.0 + * @todo remove at version 3 + * @private + */ +helpers_core.drawRoundedRectangle = function(ctx) { + ctx.beginPath(); + exports$1.roundedRect.apply(exports$1, arguments); +}; + +var defaults = { + /** + * @private + */ + _set: function(scope, values) { + return helpers_core.merge(this[scope] || (this[scope] = {}), values); + } +}; + +// TODO(v3): remove 'global' from namespace. all default are global and +// there's inconsistency around which options are under 'global' +defaults._set('global', { + defaultColor: 'rgba(0,0,0,0.1)', + defaultFontColor: '#666', + defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + defaultFontSize: 12, + defaultFontStyle: 'normal', + defaultLineHeight: 1.2, + showLines: true +}); + +var core_defaults = defaults; + +var valueOrDefault = helpers_core.valueOrDefault; + +/** + * Converts the given font object into a CSS font string. + * @param {object} font - A font object. + * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font + * @private + */ +function toFontString(font) { + if (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) { + return null; + } + + return (font.style ? font.style + ' ' : '') + + (font.weight ? font.weight + ' ' : '') + + font.size + 'px ' + + font.family; +} /** * @alias Chart.helpers.options * @namespace */ -module.exports = { +var helpers_options = { /** * Converts the given line height `value` in pixels for a specific font `size`. - * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em'). - * @param {Number} size - The font size (in pixels) used to resolve relative `value`. - * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid). + * @param {number|string} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em'). + * @param {number} size - The font size (in pixels) used to resolve relative `value`. + * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid). * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height * @since 2.7.0 */ @@ -10413,8 +3033,6 @@ module.exports = { case '%': value /= 100; break; - default: - break; } return size * value; @@ -10422,15 +3040,15 @@ module.exports = { /** * Converts the given value into a padding object with pre-computed width/height. - * @param {Number|Object} value - If a number, set the value to all TRBL component, + * @param {number|object} value - If a number, set the value to all TRBL component, * else, if and object, use defined properties and sets undefined ones to 0. - * @returns {Object} The padding values (top, right, bottom, left, width, height) + * @returns {object} The padding values (top, right, bottom, left, width, height) * @since 2.7.0 */ toPadding: function(value) { var t, r, b, l; - if (helpers.isObject(value)) { + if (helpers_core.isObject(value)) { t = +value.top || 0; r = +value.right || 0; b = +value.bottom || 0; @@ -10449,16 +3067,42 @@ module.exports = { }; }, + /** + * Parses font options and returns the font object. + * @param {object} options - A object that contains font options to be parsed. + * @return {object} The font object. + * @todo Support font.* options and renamed to toFont(). + * @private + */ + _parseFont: function(options) { + var globalDefaults = core_defaults.global; + var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize); + var font = { + family: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily), + lineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size), + size: size, + style: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle), + weight: null, + string: '' + }; + + font.string = toFontString(font); + return font; + }, + /** * Evaluates the given `inputs` sequentially and returns the first defined value. - * @param {Array[]} inputs - An array of values, falling back to the last value. - * @param {Object} [context] - If defined and the current value is a function, the value + * @param {Array} inputs - An array of values, falling back to the last value. + * @param {object} [context] - If defined and the current value is a function, the value * is called with `context` as first argument and the result becomes the new input. - * @param {Number} [index] - If defined and the current value is an array, the value + * @param {number} [index] - If defined and the current value is an array, the value * at `index` become the new input. + * @param {object} [info] - object to return information about resolution in + * @param {boolean} [info.cacheable] - Will be set to `false` if option is not cacheable. * @since 2.7.0 */ - resolve: function(inputs, context, index) { + resolve: function(inputs, context, index, info) { + var cacheable = true; var i, ilen, value; for (i = 0, ilen = inputs.length; i < ilen; ++i) { @@ -10468,32 +3112,4270 @@ module.exports = { } if (context !== undefined && typeof value === 'function') { value = value(context); + cacheable = false; } - if (index !== undefined && helpers.isArray(value)) { + if (index !== undefined && helpers_core.isArray(value)) { value = value[index]; + cacheable = false; } if (value !== undefined) { + if (info && !cacheable) { + info.cacheable = false; + } return value; } } } }; -},{"42":42}],45:[function(require,module,exports){ -'use strict'; +/** + * @alias Chart.helpers.math + * @namespace + */ +var exports$2 = { + /** + * Returns an array of factors sorted from 1 to sqrt(value) + * @private + */ + _factorize: function(value) { + var result = []; + var sqrt = Math.sqrt(value); + var i; -module.exports = require(42); -module.exports.easing = require(43); -module.exports.canvas = require(41); -module.exports.options = require(44); + for (i = 1; i < sqrt; i++) { + if (value % i === 0) { + result.push(i); + result.push(value / i); + } + } + if (sqrt === (sqrt | 0)) { // if value is a square number + result.push(sqrt); + } + + result.sort(function(a, b) { + return a - b; + }).pop(); + return result; + }, + + log10: Math.log10 || function(x) { + var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10. + // Check for whole powers of 10, + // which due to floating point rounding error should be corrected. + var powerOf10 = Math.round(exponent); + var isPowerOf10 = x === Math.pow(10, powerOf10); + + return isPowerOf10 ? powerOf10 : exponent; + } +}; + +var helpers_math = exports$2; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.helpers.math.log10 instead. + * @namespace Chart.helpers.log10 + * @deprecated since version 2.9.0 + * @todo remove at version 3 + * @private + */ +helpers_core.log10 = exports$2.log10; + +var getRtlAdapter = function(rectX, width) { + return { + x: function(x) { + return rectX + rectX + width - x; + }, + setWidth: function(w) { + width = w; + }, + textAlign: function(align) { + if (align === 'center') { + return align; + } + return align === 'right' ? 'left' : 'right'; + }, + xPlus: function(x, value) { + return x - value; + }, + leftForLtr: function(x, itemWidth) { + return x - itemWidth; + }, + }; +}; + +var getLtrAdapter = function() { + return { + x: function(x) { + return x; + }, + setWidth: function(w) { // eslint-disable-line no-unused-vars + }, + textAlign: function(align) { + return align; + }, + xPlus: function(x, value) { + return x + value; + }, + leftForLtr: function(x, _itemWidth) { // eslint-disable-line no-unused-vars + return x; + }, + }; +}; + +var getAdapter = function(rtl, rectX, width) { + return rtl ? getRtlAdapter(rectX, width) : getLtrAdapter(); +}; + +var overrideTextDirection = function(ctx, direction) { + var 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; + } +}; + +var restoreTextDirection = function(ctx) { + var original = ctx.prevTextDirection; + if (original !== undefined) { + delete ctx.prevTextDirection; + ctx.canvas.style.setProperty('direction', original[0], original[1]); + } +}; + +var helpers_rtl = { + getRtlAdapter: getAdapter, + overrideTextDirection: overrideTextDirection, + restoreTextDirection: restoreTextDirection, +}; + +var helpers$1 = helpers_core; +var easing = helpers_easing; +var canvas = helpers_canvas; +var options = helpers_options; +var math = helpers_math; +var rtl = helpers_rtl; +helpers$1.easing = easing; +helpers$1.canvas = canvas; +helpers$1.options = options; +helpers$1.math = math; +helpers$1.rtl = rtl; + +function interpolate(start, view, model, ease) { + var keys = Object.keys(model); + var i, ilen, key, actual, origin, target, type, c0, c1; + + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + + target = model[key]; + + // if a value is added to the model after pivot() has been called, the view + // doesn't contain it, so let's initialize the view to the target value. + if (!view.hasOwnProperty(key)) { + view[key] = target; + } + + actual = view[key]; + + if (actual === target || key[0] === '_') { + continue; + } + + if (!start.hasOwnProperty(key)) { + start[key] = actual; + } + + origin = start[key]; + + type = typeof target; + + if (type === typeof origin) { + if (type === 'string') { + c0 = chartjsColor(origin); + if (c0.valid) { + c1 = chartjsColor(target); + if (c1.valid) { + view[key] = c1.mix(c0, ease).rgbString(); + continue; + } + } + } else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) { + view[key] = origin + (target - origin) * ease; + continue; + } + } + + view[key] = target; + } +} + +var Element = function(configuration) { + helpers$1.extend(this, configuration); + this.initialize.apply(this, arguments); +}; + +helpers$1.extend(Element.prototype, { + _type: undefined, + + initialize: function() { + this.hidden = false; + }, + + pivot: function() { + var me = this; + if (!me._view) { + me._view = helpers$1.extend({}, me._model); + } + me._start = {}; + return me; + }, + + transition: function(ease) { + var me = this; + var model = me._model; + var start = me._start; + var view = me._view; + + // No animation -> No Transition + if (!model || ease === 1) { + me._view = helpers$1.extend({}, model); + me._start = null; + return me; + } + + if (!view) { + view = me._view = {}; + } + + if (!start) { + start = me._start = {}; + } + + interpolate(start, view, model, ease); + + return me; + }, + + tooltipPosition: function() { + return { + x: this._model.x, + y: this._model.y + }; + }, + + hasValue: function() { + return helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y); + } +}); + +Element.extend = helpers$1.inherits; + +var core_element = Element; + +var exports$3 = core_element.extend({ + chart: null, // the animation associated chart instance + currentStep: 0, // the current animation step + numSteps: 60, // default number of steps + easing: '', // the easing to use for this animation + render: null, // render function used by the animation service + + onAnimationProgress: null, // user specified callback to fire on each step of the animation + onAnimationComplete: null, // user specified callback to fire when the animation finishes +}); + +var core_animation = exports$3; + +// DEPRECATIONS + +/** + * Provided for backward compatibility, use Chart.Animation instead + * @prop Chart.Animation#animationObject + * @deprecated since version 2.6.0 + * @todo remove at version 3 + */ +Object.defineProperty(exports$3.prototype, 'animationObject', { + get: function() { + return this; + } +}); + +/** + * Provided for backward compatibility, use Chart.Animation#chart instead + * @prop Chart.Animation#chartInstance + * @deprecated since version 2.6.0 + * @todo remove at version 3 + */ +Object.defineProperty(exports$3.prototype, 'chartInstance', { + get: function() { + return this.chart; + }, + set: function(value) { + this.chart = value; + } +}); + +core_defaults._set('global', { + animation: { + duration: 1000, + easing: 'easeOutQuart', + onProgress: helpers$1.noop, + onComplete: helpers$1.noop + } +}); + +var core_animations = { + animations: [], + request: null, + + /** + * @param {Chart} chart - The chart to animate. + * @param {Chart.Animation} animation - The animation that we will animate. + * @param {number} duration - The animation duration in ms. + * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions + */ + addAnimation: function(chart, animation, duration, lazy) { + var animations = this.animations; + var i, ilen; + + animation.chart = chart; + animation.startTime = Date.now(); + animation.duration = duration; + + if (!lazy) { + chart.animating = true; + } + + for (i = 0, ilen = animations.length; i < ilen; ++i) { + if (animations[i].chart === chart) { + animations[i] = animation; + return; + } + } + + animations.push(animation); + + // If there are no animations queued, manually kickstart a digest, for lack of a better word + if (animations.length === 1) { + this.requestAnimationFrame(); + } + }, + + cancelAnimation: function(chart) { + var index = helpers$1.findIndex(this.animations, function(animation) { + return animation.chart === chart; + }); + + if (index !== -1) { + this.animations.splice(index, 1); + chart.animating = false; + } + }, + + requestAnimationFrame: function() { + var me = this; + if (me.request === null) { + // Skip animation frame requests until the active one is executed. + // This can happen when processing mouse events, e.g. 'mousemove' + // and 'mouseout' events will trigger multiple renders. + me.request = helpers$1.requestAnimFrame.call(window, function() { + me.request = null; + me.startDigest(); + }); + } + }, + + /** + * @private + */ + startDigest: function() { + var me = this; + + me.advance(); + + // Do we have more stuff to animate? + if (me.animations.length > 0) { + me.requestAnimationFrame(); + } + }, + + /** + * @private + */ + advance: function() { + var animations = this.animations; + var animation, chart, numSteps, nextStep; + var i = 0; + + // 1 animation per chart, so we are looping charts here + while (i < animations.length) { + animation = animations[i]; + chart = animation.chart; + numSteps = animation.numSteps; + + // Make sure that currentStep starts at 1 + // https://github.com/chartjs/Chart.js/issues/6104 + nextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1; + animation.currentStep = Math.min(nextStep, numSteps); + + helpers$1.callback(animation.render, [chart, animation], chart); + helpers$1.callback(animation.onAnimationProgress, [animation], chart); + + if (animation.currentStep >= numSteps) { + helpers$1.callback(animation.onAnimationComplete, [animation], chart); + chart.animating = false; + animations.splice(i, 1); + } else { + ++i; + } + } + } +}; + +var resolve = helpers$1.options.resolve; + +var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; + +/** + * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice', + * 'unshift') and notify the listener AFTER the array has been altered. Listeners are + * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments. + */ +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(function(key) { + var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1); + var base = array[key]; + + Object.defineProperty(array, key, { + configurable: true, + enumerable: false, + value: function() { + var args = Array.prototype.slice.call(arguments); + var res = base.apply(this, args); + + helpers$1.each(array._chartjs.listeners, function(object) { + if (typeof object[method] === 'function') { + object[method].apply(object, args); + } + }); + + return res; + } + }); + }); +} + +/** + * Removes the given array event listener and cleanup extra attached properties (such as + * the _chartjs stub and overridden methods) if array doesn't have any more listeners. + */ +function unlistenArrayEvents(array, listener) { + var stub = array._chartjs; + if (!stub) { + return; + } + + var listeners = stub.listeners; + var index = listeners.indexOf(listener); + if (index !== -1) { + listeners.splice(index, 1); + } + + if (listeners.length > 0) { + return; + } + + arrayEvents.forEach(function(key) { + delete array[key]; + }); + + delete array._chartjs; +} + +// Base class for all dataset controllers (line, bar, etc) +var DatasetController = function(chart, datasetIndex) { + this.initialize(chart, datasetIndex); +}; + +helpers$1.extend(DatasetController.prototype, { + + /** + * Element type used to generate a meta dataset (e.g. Chart.element.Line). + * @type {Chart.core.element} + */ + datasetElementType: null, + + /** + * Element type used to generate a meta data (e.g. Chart.element.Point). + * @type {Chart.core.element} + */ + dataElementType: null, + + /** + * Dataset element option keys to be resolved in _resolveDatasetElementOptions. + * A derived controller may override this to resolve controller-specific options. + * The keys defined here are for backward compatibility for legend styles. + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderCapStyle', + 'borderColor', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'borderWidth' + ], + + /** + * Data element option keys to be resolved in _resolveDataElementOptions. + * A derived controller may override this to resolve controller-specific options. + * The keys defined here are for backward compatibility for legend styles. + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'pointStyle' + ], + + initialize: function(chart, datasetIndex) { + var me = this; + me.chart = chart; + me.index = datasetIndex; + me.linkScales(); + me.addElements(); + me._type = me.getMeta().type; + }, + + updateIndex: function(datasetIndex) { + this.index = datasetIndex; + }, + + linkScales: function() { + var me = this; + var meta = me.getMeta(); + var chart = me.chart; + var scales = chart.scales; + var dataset = me.getDataset(); + var scalesOpts = chart.options.scales; + + if (meta.xAxisID === null || !(meta.xAxisID in scales) || dataset.xAxisID) { + meta.xAxisID = dataset.xAxisID || scalesOpts.xAxes[0].id; + } + if (meta.yAxisID === null || !(meta.yAxisID in scales) || dataset.yAxisID) { + meta.yAxisID = dataset.yAxisID || scalesOpts.yAxes[0].id; + } + }, + + getDataset: function() { + return this.chart.data.datasets[this.index]; + }, + + getMeta: function() { + return this.chart.getDatasetMeta(this.index); + }, + + getScaleForId: function(scaleID) { + return this.chart.scales[scaleID]; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.getMeta().yAxisID; + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.getMeta().xAxisID; + }, + + /** + * @private + */ + _getValueScale: function() { + return this.getScaleForId(this._getValueScaleId()); + }, + + /** + * @private + */ + _getIndexScale: function() { + return this.getScaleForId(this._getIndexScaleId()); + }, + + reset: function() { + this._update(true); + }, + + /** + * @private + */ + destroy: function() { + if (this._data) { + unlistenArrayEvents(this._data, this); + } + }, + + createMetaDataset: function() { + var me = this; + var type = me.datasetElementType; + return type && new type({ + _chart: me.chart, + _datasetIndex: me.index + }); + }, + + createMetaData: function(index) { + var me = this; + var type = me.dataElementType; + return type && new type({ + _chart: me.chart, + _datasetIndex: me.index, + _index: index + }); + }, + + addElements: function() { + var me = this; + var meta = me.getMeta(); + var data = me.getDataset().data || []; + var metaData = meta.data; + var i, ilen; + + for (i = 0, ilen = data.length; i < ilen; ++i) { + metaData[i] = metaData[i] || me.createMetaData(i); + } + + meta.dataset = meta.dataset || me.createMetaDataset(); + }, + + addElementAndReset: function(index) { + var element = this.createMetaData(index); + this.getMeta().data.splice(index, 0, element); + this.updateElement(element, index, true); + }, + + buildOrUpdateElements: function() { + var me = this; + var dataset = me.getDataset(); + var data = dataset.data || (dataset.data = []); + + // In order to correctly handle data addition/deletion animation (an thus simulate + // real-time charts), we need to monitor these data modifications and synchronize + // the internal meta data accordingly. + if (me._data !== data) { + if (me._data) { + // This case happens when the user replaced the data array instance. + unlistenArrayEvents(me._data, me); + } + + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, me); + } + me._data = data; + } + + // Re-sync meta data in case the user replaced the data array or if we missed + // any updates and so make sure that we handle number of datapoints changing. + me.resyncElements(); + }, + + /** + * Returns the merged user-supplied and default dataset-level options + * @private + */ + _configure: function() { + var me = this; + me._config = helpers$1.merge({}, [ + me.chart.options.datasets[me._type], + me.getDataset(), + ], { + merger: function(key, target, source) { + if (key !== '_meta' && key !== 'data') { + helpers$1._merger(key, target, source); + } + } + }); + }, + + _update: function(reset) { + var me = this; + me._configure(); + me._cachedDataOpts = null; + me.update(reset); + }, + + update: helpers$1.noop, + + transition: function(easingValue) { + var meta = this.getMeta(); + var elements = meta.data || []; + var ilen = elements.length; + var i = 0; + + for (; i < ilen; ++i) { + elements[i].transition(easingValue); + } + + if (meta.dataset) { + meta.dataset.transition(easingValue); + } + }, + + draw: function() { + var meta = this.getMeta(); + var elements = meta.data || []; + var ilen = elements.length; + var i = 0; + + if (meta.dataset) { + meta.dataset.draw(); + } + + for (; i < ilen; ++i) { + elements[i].draw(); + } + }, + + /** + * Returns a set of predefined style properties that should be used to represent the dataset + * or the data if the index is specified + * @param {number} index - data index + * @return {IStyleInterface} style object + */ + getStyle: function(index) { + var me = this; + var meta = me.getMeta(); + var dataset = meta.dataset; + var style; + + me._configure(); + if (dataset && index === undefined) { + style = me._resolveDatasetElementOptions(dataset || {}); + } else { + index = index || 0; + style = me._resolveDataElementOptions(meta.data[index] || {}, index); + } + + if (style.fill === false || style.fill === null) { + style.backgroundColor = style.borderColor; + } + + return style; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function(element, hover) { + var me = this; + var chart = me.chart; + var datasetOpts = me._config; + var custom = element.custom || {}; + var options = chart.options.elements[me.datasetElementType.prototype._type] || {}; + var elementOptions = me._datasetElementOptions; + var values = {}; + var i, ilen, key, readKey; + + // Scriptable options + var context = { + chart: chart, + dataset: me.getDataset(), + datasetIndex: me.index, + hover: hover + }; + + for (i = 0, ilen = elementOptions.length; i < ilen; ++i) { + key = elementOptions[i]; + readKey = hover ? 'hover' + key.charAt(0).toUpperCase() + key.slice(1) : key; + values[key] = resolve([ + custom[readKey], + datasetOpts[readKey], + options[readKey] + ], context); + } + + return values; + }, + + /** + * @private + */ + _resolveDataElementOptions: function(element, index) { + var me = this; + var custom = element && element.custom; + var cached = me._cachedDataOpts; + if (cached && !custom) { + return cached; + } + var chart = me.chart; + var datasetOpts = me._config; + var options = chart.options.elements[me.dataElementType.prototype._type] || {}; + var elementOptions = me._dataElementOptions; + var values = {}; + + // Scriptable options + var context = { + chart: chart, + dataIndex: index, + dataset: me.getDataset(), + datasetIndex: me.index + }; + + // `resolve` sets cacheable to `false` if any option is indexed or scripted + var info = {cacheable: !custom}; + + var keys, i, ilen, key; + + custom = custom || {}; + + if (helpers$1.isArray(elementOptions)) { + for (i = 0, ilen = elementOptions.length; i < ilen; ++i) { + key = elementOptions[i]; + values[key] = resolve([ + custom[key], + datasetOpts[key], + options[key] + ], context, index, info); + } + } else { + keys = Object.keys(elementOptions); + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + values[key] = resolve([ + custom[key], + datasetOpts[elementOptions[key]], + datasetOpts[key], + options[key] + ], context, index, info); + } + } + + if (info.cacheable) { + me._cachedDataOpts = Object.freeze(values); + } + + return values; + }, + + removeHoverStyle: function(element) { + helpers$1.merge(element._model, element.$previousStyle || {}); + delete element.$previousStyle; + }, + + setHoverStyle: function(element) { + var dataset = this.chart.data.datasets[element._datasetIndex]; + var index = element._index; + var custom = element.custom || {}; + var model = element._model; + var getHoverColor = helpers$1.getHoverColor; + + element.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth + }; + + model.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index); + model.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index); + model.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index); + }, + + /** + * @private + */ + _removeDatasetHoverStyle: function() { + var element = this.getMeta().dataset; + + if (element) { + this.removeHoverStyle(element); + } + }, + + /** + * @private + */ + _setDatasetHoverStyle: function() { + var element = this.getMeta().dataset; + var prev = {}; + var i, ilen, key, keys, hoverOptions, model; + + if (!element) { + return; + } + + model = element._model; + hoverOptions = this._resolveDatasetElementOptions(element, true); + + keys = Object.keys(hoverOptions); + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + prev[key] = model[key]; + model[key] = hoverOptions[key]; + } + + element.$previousStyle = prev; + }, + + /** + * @private + */ + resyncElements: function() { + var me = this; + var meta = me.getMeta(); + var data = me.getDataset().data; + var numMeta = meta.data.length; + var numData = data.length; + + if (numData < numMeta) { + meta.data.splice(numData, numMeta - numData); + } else if (numData > numMeta) { + me.insertElements(numMeta, numData - numMeta); + } + }, + + /** + * @private + */ + insertElements: function(start, count) { + for (var i = 0; i < count; ++i) { + this.addElementAndReset(start + i); + } + }, + + /** + * @private + */ + onDataPush: function() { + var count = arguments.length; + this.insertElements(this.getDataset().data.length - count, count); + }, + + /** + * @private + */ + onDataPop: function() { + this.getMeta().data.pop(); + }, + + /** + * @private + */ + onDataShift: function() { + this.getMeta().data.shift(); + }, + + /** + * @private + */ + onDataSplice: function(start, count) { + this.getMeta().data.splice(start, count); + this.insertElements(start, arguments.length - 2); + }, + + /** + * @private + */ + onDataUnshift: function() { + this.insertElements(0, arguments.length); + } +}); + +DatasetController.extend = helpers$1.inherits; + +var core_datasetController = DatasetController; + +var TAU = Math.PI * 2; + +core_defaults._set('global', { + elements: { + arc: { + backgroundColor: core_defaults.global.defaultColor, + borderColor: '#fff', + borderWidth: 2, + borderAlign: 'center' + } + } +}); + +function clipArc(ctx, arc) { + var startAngle = arc.startAngle; + var endAngle = arc.endAngle; + var pixelMargin = arc.pixelMargin; + var angleMargin = pixelMargin / arc.outerRadius; + var x = arc.x; + var y = arc.y; + + // Draw an inner border by cliping the arc and drawing a double-width border + // Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders + ctx.beginPath(); + ctx.arc(x, y, arc.outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (arc.innerRadius > pixelMargin) { + angleMargin = pixelMargin / arc.innerRadius; + ctx.arc(x, y, arc.innerRadius - pixelMargin, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + Math.PI / 2, startAngle - Math.PI / 2); + } + ctx.closePath(); + ctx.clip(); +} + +function drawFullCircleBorders(ctx, vm, arc, inner) { + var endAngle = arc.endAngle; + var i; + + if (inner) { + arc.endAngle = arc.startAngle + TAU; + clipArc(ctx, arc); + arc.endAngle = endAngle; + if (arc.endAngle === arc.startAngle && arc.fullCircles) { + arc.endAngle += TAU; + arc.fullCircles--; + } + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.startAngle + TAU, arc.startAngle, true); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.stroke(); + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.startAngle + TAU); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.stroke(); + } +} + +function drawBorder(ctx, vm, arc) { + var inner = vm.borderAlign === 'inner'; + + if (inner) { + ctx.lineWidth = vm.borderWidth * 2; + ctx.lineJoin = 'round'; + } else { + ctx.lineWidth = vm.borderWidth; + ctx.lineJoin = 'bevel'; + } + + if (arc.fullCircles) { + drawFullCircleBorders(ctx, vm, arc, inner); + } + + if (inner) { + clipArc(ctx, arc); + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, vm.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + ctx.stroke(); +} + +var element_arc = core_element.extend({ + _type: 'arc', + + inLabelRange: function(mouseX) { + var vm = this._view; + + if (vm) { + return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2)); + } + return false; + }, + + inRange: function(chartX, chartY) { + var vm = this._view; + + if (vm) { + var pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY}); + var angle = pointRelativePosition.angle; + var distance = pointRelativePosition.distance; + + // Sanitise angle range + var startAngle = vm.startAngle; + var endAngle = vm.endAngle; + while (endAngle < startAngle) { + endAngle += TAU; + } + while (angle > endAngle) { + angle -= TAU; + } + while (angle < startAngle) { + angle += TAU; + } + + // Check if within the range of the open/close angle + var betweenAngles = (angle >= startAngle && angle <= endAngle); + var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius); + + return (betweenAngles && withinRadius); + } + return false; + }, + + getCenterPoint: function() { + var vm = this._view; + var halfAngle = (vm.startAngle + vm.endAngle) / 2; + var halfRadius = (vm.innerRadius + vm.outerRadius) / 2; + return { + x: vm.x + Math.cos(halfAngle) * halfRadius, + y: vm.y + Math.sin(halfAngle) * halfRadius + }; + }, + + getArea: function() { + var vm = this._view; + return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2)); + }, + + tooltipPosition: function() { + var vm = this._view; + var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2); + var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius; + + return { + x: vm.x + (Math.cos(centreAngle) * rangeFromCentre), + y: vm.y + (Math.sin(centreAngle) * rangeFromCentre) + }; + }, + + draw: function() { + var ctx = this._chart.ctx; + var vm = this._view; + var pixelMargin = (vm.borderAlign === 'inner') ? 0.33 : 0; + var arc = { + x: vm.x, + y: vm.y, + innerRadius: vm.innerRadius, + outerRadius: Math.max(vm.outerRadius - pixelMargin, 0), + pixelMargin: pixelMargin, + startAngle: vm.startAngle, + endAngle: vm.endAngle, + fullCircles: Math.floor(vm.circumference / TAU) + }; + var i; + + ctx.save(); + + ctx.fillStyle = vm.backgroundColor; + ctx.strokeStyle = vm.borderColor; + + if (arc.fullCircles) { + arc.endAngle = arc.startAngle + TAU; + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + for (i = 0; i < arc.fullCircles; ++i) { + ctx.fill(); + } + arc.endAngle = arc.startAngle + vm.circumference % TAU; + } + + ctx.beginPath(); + ctx.arc(arc.x, arc.y, arc.outerRadius, arc.startAngle, arc.endAngle); + ctx.arc(arc.x, arc.y, arc.innerRadius, arc.endAngle, arc.startAngle, true); + ctx.closePath(); + ctx.fill(); + + if (vm.borderWidth) { + drawBorder(ctx, vm, arc); + } + + ctx.restore(); + } +}); + +var valueOrDefault$1 = helpers$1.valueOrDefault; + +var defaultColor = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + line: { + tension: 0.4, + backgroundColor: defaultColor, + borderWidth: 3, + borderColor: defaultColor, + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0.0, + borderJoinStyle: 'miter', + capBezierPoints: true, + fill: true, // do we fill in the area between the line and its base axis + } + } +}); + +var element_line = core_element.extend({ + _type: 'line', + + draw: function() { + var me = this; + var vm = me._view; + var ctx = me._chart.ctx; + var spanGaps = vm.spanGaps; + var points = me._children.slice(); // clone array + var globalDefaults = core_defaults.global; + var globalOptionLineElements = globalDefaults.elements.line; + var lastDrawnIndex = -1; + var closePath = me._loop; + var index, previous, currentVM; + + if (!points.length) { + return; + } + + if (me._loop) { + for (index = 0; index < points.length; ++index) { + previous = helpers$1.previousItem(points, index); + // If the line has an open path, shift the point array + if (!points[index]._view.skip && previous._view.skip) { + points = points.slice(index).concat(points.slice(0, index)); + closePath = spanGaps; + break; + } + } + // If the line has a close path, add the first point again + if (closePath) { + points.push(points[0]); + } + } + + ctx.save(); + + // Stroke Line Options + ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle; + + // IE 9 and 10 do not support line dash + if (ctx.setLineDash) { + ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash); + } + + ctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset); + ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle; + ctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth); + ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor; + + // Stroke Line + ctx.beginPath(); + + // First point moves to it's starting position no matter what + currentVM = points[0]._view; + if (!currentVM.skip) { + ctx.moveTo(currentVM.x, currentVM.y); + lastDrawnIndex = 0; + } + + for (index = 1; index < points.length; ++index) { + currentVM = points[index]._view; + previous = lastDrawnIndex === -1 ? helpers$1.previousItem(points, index) : points[lastDrawnIndex]; + + if (!currentVM.skip) { + if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) { + // There was a gap and this is the first point after the gap + ctx.moveTo(currentVM.x, currentVM.y); + } else { + // Line to next point + helpers$1.canvas.lineTo(ctx, previous._view, currentVM); + } + lastDrawnIndex = index; + } + } + + if (closePath) { + ctx.closePath(); + } + + ctx.stroke(); + ctx.restore(); + } +}); + +var valueOrDefault$2 = helpers$1.valueOrDefault; + +var defaultColor$1 = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + point: { + radius: 3, + pointStyle: 'circle', + backgroundColor: defaultColor$1, + borderColor: defaultColor$1, + borderWidth: 1, + // Hover + hitRadius: 1, + hoverRadius: 4, + hoverBorderWidth: 1 + } + } +}); + +function xRange(mouseX) { + var vm = this._view; + return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false; +} + +function yRange(mouseY) { + var vm = this._view; + return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false; +} + +var element_point = core_element.extend({ + _type: 'point', + + inRange: function(mouseX, mouseY) { + var vm = this._view; + return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false; + }, + + inLabelRange: xRange, + inXRange: xRange, + inYRange: yRange, + + getCenterPoint: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y + }; + }, + + getArea: function() { + return Math.PI * Math.pow(this._view.radius, 2); + }, + + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y, + padding: vm.radius + vm.borderWidth + }; + }, + + draw: function(chartArea) { + var vm = this._view; + var ctx = this._chart.ctx; + var pointStyle = vm.pointStyle; + var rotation = vm.rotation; + var radius = vm.radius; + var x = vm.x; + var y = vm.y; + var globalDefaults = core_defaults.global; + var defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow + + if (vm.skip) { + return; + } + + // Clipping for Points. + if (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) { + ctx.strokeStyle = vm.borderColor || defaultColor; + ctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth); + ctx.fillStyle = vm.backgroundColor || defaultColor; + helpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation); + } + } +}); + +var defaultColor$2 = core_defaults.global.defaultColor; + +core_defaults._set('global', { + elements: { + rectangle: { + backgroundColor: defaultColor$2, + borderColor: defaultColor$2, + borderSkipped: 'bottom', + borderWidth: 0 + } + } +}); + +function isVertical(vm) { + return vm && vm.width !== undefined; +} + +/** + * Helper function to get the bounds of the bar regardless of the orientation + * @param bar {Chart.Element.Rectangle} the bar + * @return {Bounds} bounds of the bar + * @private + */ +function getBarBounds(vm) { + var x1, x2, y1, y2, half; + + if (isVertical(vm)) { + half = vm.width / 2; + x1 = vm.x - half; + x2 = vm.x + half; + y1 = Math.min(vm.y, vm.base); + y2 = Math.max(vm.y, vm.base); + } else { + half = vm.height / 2; + x1 = Math.min(vm.x, vm.base); + x2 = Math.max(vm.x, vm.base); + y1 = vm.y - half; + y2 = vm.y + half; + } + + return { + left: x1, + top: y1, + right: x2, + bottom: y2 + }; +} + +function swap(orig, v1, v2) { + return orig === v1 ? v2 : orig === v2 ? v1 : orig; +} + +function parseBorderSkipped(vm) { + var edge = vm.borderSkipped; + var res = {}; + + if (!edge) { + return res; + } + + if (vm.horizontal) { + if (vm.base > vm.x) { + edge = swap(edge, 'left', 'right'); + } + } else if (vm.base < vm.y) { + edge = swap(edge, 'bottom', 'top'); + } + + res[edge] = true; + return res; +} + +function parseBorderWidth(vm, maxW, maxH) { + var value = vm.borderWidth; + var skip = parseBorderSkipped(vm); + var t, r, b, l; + + if (helpers$1.isObject(value)) { + t = +value.top || 0; + r = +value.right || 0; + b = +value.bottom || 0; + l = +value.left || 0; + } else { + t = r = b = l = +value || 0; + } + + return { + t: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t, + r: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r, + b: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b, + l: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l + }; +} + +function boundingRects(vm) { + var bounds = getBarBounds(vm); + var width = bounds.right - bounds.left; + var height = bounds.bottom - bounds.top; + var border = parseBorderWidth(vm, width / 2, height / 2); + + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b + } + }; +} + +function inRange(vm, x, y) { + var skipX = x === null; + var skipY = y === null; + var bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm); + + return bounds + && (skipX || x >= bounds.left && x <= bounds.right) + && (skipY || y >= bounds.top && y <= bounds.bottom); +} + +var element_rectangle = core_element.extend({ + _type: 'rectangle', + + draw: function() { + var ctx = this._chart.ctx; + var vm = this._view; + var rects = boundingRects(vm); + var outer = rects.outer; + var inner = rects.inner; + + ctx.fillStyle = vm.backgroundColor; + ctx.fillRect(outer.x, outer.y, outer.w, outer.h); + + if (outer.w === inner.w && outer.h === inner.h) { + return; + } + + ctx.save(); + ctx.beginPath(); + ctx.rect(outer.x, outer.y, outer.w, outer.h); + ctx.clip(); + ctx.fillStyle = vm.borderColor; + ctx.rect(inner.x, inner.y, inner.w, inner.h); + ctx.fill('evenodd'); + ctx.restore(); + }, + + height: function() { + var vm = this._view; + return vm.base - vm.y; + }, + + inRange: function(mouseX, mouseY) { + return inRange(this._view, mouseX, mouseY); + }, + + inLabelRange: function(mouseX, mouseY) { + var vm = this._view; + return isVertical(vm) + ? inRange(vm, mouseX, null) + : inRange(vm, null, mouseY); + }, + + inXRange: function(mouseX) { + return inRange(this._view, mouseX, null); + }, + + inYRange: function(mouseY) { + return inRange(this._view, null, mouseY); + }, + + getCenterPoint: function() { + var vm = this._view; + var x, y; + if (isVertical(vm)) { + x = vm.x; + y = (vm.y + vm.base) / 2; + } else { + x = (vm.x + vm.base) / 2; + y = vm.y; + } + + return {x: x, y: y}; + }, + + getArea: function() { + var vm = this._view; + + return isVertical(vm) + ? vm.width * Math.abs(vm.y - vm.base) + : vm.height * Math.abs(vm.x - vm.base); + }, + + tooltipPosition: function() { + var vm = this._view; + return { + x: vm.x, + y: vm.y + }; + } +}); + +var elements = {}; +var Arc = element_arc; +var Line = element_line; +var Point = element_point; +var Rectangle = element_rectangle; +elements.Arc = Arc; +elements.Line = Line; +elements.Point = Point; +elements.Rectangle = Rectangle; + +var deprecated = helpers$1._deprecated; +var valueOrDefault$3 = helpers$1.valueOrDefault; + +core_defaults._set('bar', { + hover: { + mode: 'label' + }, + + scales: { + xAxes: [{ + type: 'category', + offset: true, + gridLines: { + offsetGridLines: true + } + }], + + yAxes: [{ + type: 'linear' + }] + } +}); + +core_defaults._set('global', { + datasets: { + bar: { + categoryPercentage: 0.8, + barPercentage: 0.9 + } + } +}); + +/** + * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap. + * @private + */ +function computeMinSampleSize(scale, pixels) { + var min = scale._length; + var prev, curr, i, ilen; + + for (i = 1, ilen = pixels.length; i < ilen; ++i) { + min = Math.min(min, Math.abs(pixels[i] - pixels[i - 1])); + } + + for (i = 0, ilen = scale.getTicks().length; i < ilen; ++i) { + curr = scale.getPixelForTick(i); + min = i > 0 ? Math.min(min, Math.abs(curr - prev)) : min; + prev = curr; + } + + return min; +} + +/** + * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null, + * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This + * mode currently always generates bars equally sized (until we introduce scriptable options?). + * @private + */ +function computeFitCategoryTraits(index, ruler, options) { + var thickness = options.barThickness; + var count = ruler.stackCount; + var curr = ruler.pixels[index]; + var min = helpers$1.isNullOrUndef(thickness) + ? computeMinSampleSize(ruler.scale, ruler.pixels) + : -1; + var size, ratio; + + if (helpers$1.isNullOrUndef(thickness)) { + size = min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + // When bar thickness is enforced, category and bar percentages are ignored. + // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%') + // and deprecate barPercentage since this value is ignored when thickness is absolute. + size = thickness * count; + ratio = 1; + } + + return { + chunk: size / count, + ratio: ratio, + start: curr - (size / 2) + }; +} + +/** + * Computes an "optimal" category that globally arranges bars side by side (no gap when + * percentage options are 1), based on the previous and following categories. This mode + * generates bars with different widths when data are not evenly spaced. + * @private + */ +function computeFlexCategoryTraits(index, ruler, options) { + var pixels = ruler.pixels; + var curr = pixels[index]; + var prev = index > 0 ? pixels[index - 1] : null; + var next = index < pixels.length - 1 ? pixels[index + 1] : null; + var percent = options.categoryPercentage; + var start, size; + + if (prev === null) { + // first data: its size is double based on the next point or, + // if it's also the last data, we use the scale size. + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + + if (next === null) { + // last data: its size is also double based on the previous point. + next = curr + curr - prev; + } + + start = curr - (curr - Math.min(prev, next)) / 2 * percent; + size = Math.abs(next - prev) / 2 * percent; + + return { + chunk: size / ruler.stackCount, + ratio: options.barPercentage, + start: start + }; +} + +var controller_bar = core_datasetController.extend({ + + dataElementType: elements.Rectangle, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderSkipped', + 'borderWidth', + 'barPercentage', + 'barThickness', + 'categoryPercentage', + 'maxBarThickness', + 'minBarLength' + ], + + initialize: function() { + var me = this; + var meta, scaleOpts; + + core_datasetController.prototype.initialize.apply(me, arguments); + + meta = me.getMeta(); + meta.stack = me.getDataset().stack; + meta.bar = true; + + scaleOpts = me._getIndexScale().options; + deprecated('bar chart', scaleOpts.barPercentage, 'scales.[x/y]Axes.barPercentage', 'dataset.barPercentage'); + deprecated('bar chart', scaleOpts.barThickness, 'scales.[x/y]Axes.barThickness', 'dataset.barThickness'); + deprecated('bar chart', scaleOpts.categoryPercentage, 'scales.[x/y]Axes.categoryPercentage', 'dataset.categoryPercentage'); + deprecated('bar chart', me._getValueScale().options.minBarLength, 'scales.[x/y]Axes.minBarLength', 'dataset.minBarLength'); + deprecated('bar chart', scaleOpts.maxBarThickness, 'scales.[x/y]Axes.maxBarThickness', 'dataset.maxBarThickness'); + }, + + update: function(reset) { + var me = this; + var rects = me.getMeta().data; + var i, ilen; + + me._ruler = me.getRuler(); + + for (i = 0, ilen = rects.length; i < ilen; ++i) { + me.updateElement(rects[i], i, reset); + } + }, + + updateElement: function(rectangle, index, reset) { + var me = this; + var meta = me.getMeta(); + var dataset = me.getDataset(); + var options = me._resolveDataElementOptions(rectangle, index); + + rectangle._xScale = me.getScaleForId(meta.xAxisID); + rectangle._yScale = me.getScaleForId(meta.yAxisID); + rectangle._datasetIndex = me.index; + rectangle._index = index; + rectangle._model = { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderSkipped: options.borderSkipped, + borderWidth: options.borderWidth, + datasetLabel: dataset.label, + label: me.chart.data.labels[index] + }; + + if (helpers$1.isArray(dataset.data[index])) { + rectangle._model.borderSkipped = null; + } + + me._updateElementGeometry(rectangle, index, reset, options); + + rectangle.pivot(); + }, + + /** + * @private + */ + _updateElementGeometry: function(rectangle, index, reset, options) { + var me = this; + var model = rectangle._model; + var vscale = me._getValueScale(); + var base = vscale.getBasePixel(); + var horizontal = vscale.isHorizontal(); + var ruler = me._ruler || me.getRuler(); + var vpixels = me.calculateBarValuePixels(me.index, index, options); + var ipixels = me.calculateBarIndexPixels(me.index, index, ruler, options); + + model.horizontal = horizontal; + model.base = reset ? base : vpixels.base; + model.x = horizontal ? reset ? base : vpixels.head : ipixels.center; + model.y = horizontal ? ipixels.center : reset ? base : vpixels.head; + model.height = horizontal ? ipixels.size : undefined; + model.width = horizontal ? undefined : ipixels.size; + }, + + /** + * Returns the stacks based on groups and bar visibility. + * @param {number} [last] - The dataset index + * @returns {string[]} The list of stack IDs + * @private + */ + _getStacks: function(last) { + var me = this; + var scale = me._getIndexScale(); + var metasets = scale._getMatchingVisibleMetas(me._type); + var stacked = scale.options.stacked; + var ilen = metasets.length; + var stacks = []; + var i, meta; + + for (i = 0; i < ilen; ++i) { + meta = metasets[i]; + // stacked | meta.stack + // | found | not found | undefined + // false | x | x | x + // true | | x | + // undefined | | x | x + if (stacked === false || stacks.indexOf(meta.stack) === -1 || + (stacked === undefined && meta.stack === undefined)) { + stacks.push(meta.stack); + } + if (meta.index === last) { + break; + } + } + + return stacks; + }, + + /** + * Returns the effective number of stacks based on groups and bar visibility. + * @private + */ + getStackCount: function() { + return this._getStacks().length; + }, + + /** + * Returns the stack index for the given dataset based on groups and bar visibility. + * @param {number} [datasetIndex] - The dataset index + * @param {string} [name] - The stack name to find + * @returns {number} The stack index + * @private + */ + getStackIndex: function(datasetIndex, name) { + var stacks = this._getStacks(datasetIndex); + var index = (name !== undefined) + ? stacks.indexOf(name) + : -1; // indexOf returns -1 if element is not present + + return (index === -1) + ? stacks.length - 1 + : index; + }, + + /** + * @private + */ + getRuler: function() { + var me = this; + var scale = me._getIndexScale(); + var pixels = []; + var i, ilen; + + for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) { + pixels.push(scale.getPixelForValue(null, i, me.index)); + } + + return { + pixels: pixels, + start: scale._startPixel, + end: scale._endPixel, + stackCount: me.getStackCount(), + scale: scale + }; + }, + + /** + * Note: pixel values are not clamped to the scale area. + * @private + */ + calculateBarValuePixels: function(datasetIndex, index, options) { + var me = this; + var chart = me.chart; + var scale = me._getValueScale(); + var isHorizontal = scale.isHorizontal(); + var datasets = chart.data.datasets; + var metasets = scale._getMatchingVisibleMetas(me._type); + var value = scale._parseValue(datasets[datasetIndex].data[index]); + var minBarLength = options.minBarLength; + var stacked = scale.options.stacked; + var stack = me.getMeta().stack; + var start = value.start === undefined ? 0 : value.max >= 0 && value.min >= 0 ? value.min : value.max; + var length = value.start === undefined ? value.end : value.max >= 0 && value.min >= 0 ? value.max - value.min : value.min - value.max; + var ilen = metasets.length; + var i, imeta, ivalue, base, head, size, stackLength; + + if (stacked || (stacked === undefined && stack !== undefined)) { + for (i = 0; i < ilen; ++i) { + imeta = metasets[i]; + + if (imeta.index === datasetIndex) { + break; + } + + if (imeta.stack === stack) { + stackLength = scale._parseValue(datasets[imeta.index].data[index]); + ivalue = stackLength.start === undefined ? stackLength.end : stackLength.min >= 0 && stackLength.max >= 0 ? stackLength.max : stackLength.min; + + if ((value.min < 0 && ivalue < 0) || (value.max >= 0 && ivalue > 0)) { + start += ivalue; + } + } + } + } + + base = scale.getPixelForValue(start); + head = scale.getPixelForValue(start + length); + size = head - base; + + if (minBarLength !== undefined && Math.abs(size) < minBarLength) { + size = minBarLength; + if (length >= 0 && !isHorizontal || length < 0 && isHorizontal) { + head = base - minBarLength; + } else { + head = base + minBarLength; + } + } + + return { + size: size, + base: base, + head: head, + center: head + size / 2 + }; + }, + + /** + * @private + */ + calculateBarIndexPixels: function(datasetIndex, index, ruler, options) { + var me = this; + var range = options.barThickness === 'flex' + ? computeFlexCategoryTraits(index, ruler, options) + : computeFitCategoryTraits(index, ruler, options); + + var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack); + var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); + var size = Math.min( + valueOrDefault$3(options.maxBarThickness, Infinity), + range.chunk * range.ratio); + + return { + base: center - size / 2, + head: center + size / 2, + center: center, + size: size + }; + }, + + draw: function() { + var me = this; + var chart = me.chart; + var scale = me._getValueScale(); + var rects = me.getMeta().data; + var dataset = me.getDataset(); + var ilen = rects.length; + var i = 0; + + helpers$1.canvas.clipArea(chart.ctx, chart.chartArea); + + for (; i < ilen; ++i) { + var val = scale._parseValue(dataset.data[i]); + if (!isNaN(val.min) && !isNaN(val.max)) { + rects[i].draw(); + } + } + + helpers$1.canvas.unclipArea(chart.ctx); + }, + + /** + * @private + */ + _resolveDataElementOptions: function() { + var me = this; + var values = helpers$1.extend({}, core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments)); + var indexOpts = me._getIndexScale().options; + var valueOpts = me._getValueScale().options; + + values.barPercentage = valueOrDefault$3(indexOpts.barPercentage, values.barPercentage); + values.barThickness = valueOrDefault$3(indexOpts.barThickness, values.barThickness); + values.categoryPercentage = valueOrDefault$3(indexOpts.categoryPercentage, values.categoryPercentage); + values.maxBarThickness = valueOrDefault$3(indexOpts.maxBarThickness, values.maxBarThickness); + values.minBarLength = valueOrDefault$3(valueOpts.minBarLength, values.minBarLength); + + return values; + } + +}); + +var valueOrDefault$4 = helpers$1.valueOrDefault; +var resolve$1 = helpers$1.options.resolve; + +core_defaults._set('bubble', { + hover: { + mode: 'single' + }, + + scales: { + xAxes: [{ + type: 'linear', // bubble should probably use a linear scale by default + position: 'bottom', + id: 'x-axis-0' // need an ID so datasets can reference the scale + }], + yAxes: [{ + type: 'linear', + position: 'left', + id: 'y-axis-0' + }] + }, + + tooltips: { + callbacks: { + title: function() { + // Title doesn't make sense for scatter since we format the data as a point + return ''; + }, + label: function(item, data) { + var datasetLabel = data.datasets[item.datasetIndex].label || ''; + var dataPoint = data.datasets[item.datasetIndex].data[item.index]; + return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')'; + } + } + } +}); + +var controller_bubble = core_datasetController.extend({ + /** + * @protected + */ + dataElementType: elements.Point, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + 'hoverRadius', + 'hitRadius', + 'pointStyle', + 'rotation' + ], + + /** + * @protected + */ + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var points = meta.data; + + // Update Points + helpers$1.each(points, function(point, index) { + me.updateElement(point, index, reset); + }); + }, + + /** + * @protected + */ + updateElement: function(point, index, reset) { + var me = this; + var meta = me.getMeta(); + var custom = point.custom || {}; + var xScale = me.getScaleForId(meta.xAxisID); + var yScale = me.getScaleForId(meta.yAxisID); + var options = me._resolveDataElementOptions(point, index); + var data = me.getDataset().data[index]; + var dsIndex = me.index; + + var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex); + var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex); + + point._xScale = xScale; + point._yScale = yScale; + point._options = options; + point._datasetIndex = dsIndex; + point._index = index; + point._model = { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + hitRadius: options.hitRadius, + pointStyle: options.pointStyle, + rotation: options.rotation, + radius: reset ? 0 : options.radius, + skip: custom.skip || isNaN(x) || isNaN(y), + x: x, + y: y, + }; + + point.pivot(); + }, + + /** + * @protected + */ + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth); + model.radius = options.radius + options.hoverRadius; + }, + + /** + * @private + */ + _resolveDataElementOptions: function(point, index) { + var me = this; + var chart = me.chart; + var dataset = me.getDataset(); + var custom = point.custom || {}; + var data = dataset.data[index] || {}; + var values = core_datasetController.prototype._resolveDataElementOptions.apply(me, arguments); + + // Scriptable options + var context = { + chart: chart, + dataIndex: index, + dataset: dataset, + datasetIndex: me.index + }; + + // In case values were cached (and thus frozen), we need to clone the values + if (me._cachedDataOpts === values) { + values = helpers$1.extend({}, values); + } + + // Custom radius resolution + values.radius = resolve$1([ + custom.radius, + data.r, + me._config.radius, + chart.options.elements.point.radius + ], context, index); + + return values; + } +}); + +var valueOrDefault$5 = helpers$1.valueOrDefault; + +var PI$1 = Math.PI; +var DOUBLE_PI$1 = PI$1 * 2; +var HALF_PI$1 = PI$1 / 2; + +core_defaults._set('doughnut', { + animation: { + // Boolean - Whether we animate the rotation of the Doughnut + animateRotate: true, + // Boolean - Whether we animate scaling the Doughnut from the centre + animateScale: false + }, + hover: { + mode: 'single' + }, + legendCallback: function(chart) { + var list = document.createElement('ul'); + var data = chart.data; + var datasets = data.datasets; + var labels = data.labels; + var i, ilen, listItem, listItemSpan; + + list.setAttribute('class', chart.id + '-legend'); + if (datasets.length) { + for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) { + listItem = list.appendChild(document.createElement('li')); + listItemSpan = listItem.appendChild(document.createElement('span')); + listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i]; + if (labels[i]) { + listItem.appendChild(document.createTextNode(labels[i])); + } + } + } + + return list.outerHTML; + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var style = meta.controller.getStyle(i); + + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }); + } + return []; + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + // toggle visibility of index if exists + if (meta.data[index]) { + meta.data[index].hidden = !meta.data[index].hidden; + } + } + + chart.update(); + } + }, + + // The percentage of the chart that we cut out of the middle. + cutoutPercentage: 50, + + // The rotation of the chart, where the first data arc begins. + rotation: -HALF_PI$1, + + // The total circumference of the chart. + circumference: DOUBLE_PI$1, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(tooltipItem, data) { + var dataLabel = data.labels[tooltipItem.index]; + var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index]; + + if (helpers$1.isArray(dataLabel)) { + // show value on first line of multiline label + // need to clone because we are changing the value + dataLabel = dataLabel.slice(); + dataLabel[0] += value; + } else { + dataLabel += value; + } + + return dataLabel; + } + } + } +}); + +var controller_doughnut = core_datasetController.extend({ + + dataElementType: elements.Arc, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'borderAlign', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + ], + + // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly + getRingIndex: function(datasetIndex) { + var ringIndex = 0; + + for (var j = 0; j < datasetIndex; ++j) { + if (this.chart.isDatasetVisible(j)) { + ++ringIndex; + } + } + + return ringIndex; + }, + + update: function(reset) { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var ratioX = 1; + var ratioY = 1; + var offsetX = 0; + var offsetY = 0; + var meta = me.getMeta(); + var arcs = meta.data; + var cutout = opts.cutoutPercentage / 100 || 0; + var circumference = opts.circumference; + var chartWeight = me._getRingWeight(me.index); + var maxWidth, maxHeight, i, ilen; + + // If the chart's circumference isn't a full circle, calculate size as a ratio of the width/height of the arc + if (circumference < DOUBLE_PI$1) { + var startAngle = opts.rotation % DOUBLE_PI$1; + startAngle += startAngle >= PI$1 ? -DOUBLE_PI$1 : startAngle < -PI$1 ? DOUBLE_PI$1 : 0; + var endAngle = startAngle + circumference; + var startX = Math.cos(startAngle); + var startY = Math.sin(startAngle); + var endX = Math.cos(endAngle); + var endY = Math.sin(endAngle); + var contains0 = (startAngle <= 0 && endAngle >= 0) || endAngle >= DOUBLE_PI$1; + var contains90 = (startAngle <= HALF_PI$1 && endAngle >= HALF_PI$1) || endAngle >= DOUBLE_PI$1 + HALF_PI$1; + var contains180 = startAngle === -PI$1 || endAngle >= PI$1; + var contains270 = (startAngle <= -HALF_PI$1 && endAngle >= -HALF_PI$1) || endAngle >= PI$1 + HALF_PI$1; + var minX = contains180 ? -1 : Math.min(startX, startX * cutout, endX, endX * cutout); + var minY = contains270 ? -1 : Math.min(startY, startY * cutout, endY, endY * cutout); + var maxX = contains0 ? 1 : Math.max(startX, startX * cutout, endX, endX * cutout); + var maxY = contains90 ? 1 : Math.max(startY, startY * cutout, endY, endY * cutout); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arcs[i]._options = me._resolveDataElementOptions(arcs[i], i); + } + + chart.borderWidth = me.getMaxBorderWidth(); + maxWidth = (chartArea.right - chartArea.left - chart.borderWidth) / ratioX; + maxHeight = (chartArea.bottom - chartArea.top - chart.borderWidth) / ratioY; + chart.outerRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + chart.innerRadius = Math.max(chart.outerRadius * cutout, 0); + chart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1); + chart.offsetX = offsetX * chart.outerRadius; + chart.offsetY = offsetY * chart.outerRadius; + + meta.total = me.calculateTotal(); + + me.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index); + me.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0); + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + me.updateElement(arcs[i], i, reset); + } + }, + + updateElement: function(arc, index, reset) { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var animationOpts = opts.animation; + var centerX = (chartArea.left + chartArea.right) / 2; + var centerY = (chartArea.top + chartArea.bottom) / 2; + var startAngle = opts.rotation; // non reset case handled later + var endAngle = opts.rotation; // non reset case handled later + var dataset = me.getDataset(); + var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / DOUBLE_PI$1); + var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius; + var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius; + var options = arc._options || {}; + + helpers$1.extend(arc, { + // Utility + _datasetIndex: me.index, + _index: index, + + // Desired view properties + _model: { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + borderAlign: options.borderAlign, + x: centerX + chart.offsetX, + y: centerY + chart.offsetY, + startAngle: startAngle, + endAngle: endAngle, + circumference: circumference, + outerRadius: outerRadius, + innerRadius: innerRadius, + label: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index]) + } + }); + + var model = arc._model; + + // Set correct angles if not resetting + if (!reset || !animationOpts.animateRotate) { + if (index === 0) { + model.startAngle = opts.rotation; + } else { + model.startAngle = me.getMeta().data[index - 1]._model.endAngle; + } + + model.endAngle = model.startAngle + model.circumference; + } + + arc.pivot(); + }, + + calculateTotal: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var total = 0; + var value; + + helpers$1.each(meta.data, function(element, index) { + value = dataset.data[index]; + if (!isNaN(value) && !element.hidden) { + total += Math.abs(value); + } + }); + + /* if (total === 0) { + total = NaN; + }*/ + + return total; + }, + + calculateCircumference: function(value) { + var total = this.getMeta().total; + if (total > 0 && !isNaN(value)) { + return DOUBLE_PI$1 * (Math.abs(value) / total); + } + return 0; + }, + + // gets the max border or hover width to properly scale pie charts + getMaxBorderWidth: function(arcs) { + var me = this; + var max = 0; + var chart = me.chart; + var i, ilen, meta, arc, controller, options, borderWidth, hoverWidth; + + if (!arcs) { + // Find the outmost visible dataset + for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + if (i !== me.index) { + controller = meta.controller; + } + break; + } + } + } + + if (!arcs) { + return 0; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arc = arcs[i]; + if (controller) { + controller._configure(); + options = controller._resolveDataElementOptions(arc, i); + } else { + options = arc._options; + } + if (options.borderAlign !== 'inner') { + borderWidth = options.borderWidth; + hoverWidth = options.hoverBorderWidth; + + max = borderWidth > max ? borderWidth : max; + max = hoverWidth > max ? hoverWidth : max; + } + } + return max; + }, + + /** + * @protected + */ + setHoverStyle: function(arc) { + var model = arc._model; + var options = arc._options; + var getHoverColor = helpers$1.getHoverColor; + + arc.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + }; + + model.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth); + }, + + /** + * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly + * @private + */ + _getRingWeightOffset: function(datasetIndex) { + var ringWeightOffset = 0; + + for (var i = 0; i < datasetIndex; ++i) { + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + + return ringWeightOffset; + }, + + /** + * @private + */ + _getRingWeight: function(dataSetIndex) { + return Math.max(valueOrDefault$5(this.chart.data.datasets[dataSetIndex].weight, 1), 0); + }, + + /** + * Returns the sum of all visibile data set weights. This value can be 0. + * @private + */ + _getVisibleDatasetWeightTotal: function() { + return this._getRingWeightOffset(this.chart.data.datasets.length); + } +}); + +core_defaults._set('horizontalBar', { + hover: { + mode: 'index', + axis: 'y' + }, + + scales: { + xAxes: [{ + type: 'linear', + position: 'bottom' + }], + + yAxes: [{ + type: 'category', + position: 'left', + offset: true, + gridLines: { + offsetGridLines: true + } + }] + }, + + elements: { + rectangle: { + borderSkipped: 'left' + } + }, + + tooltips: { + mode: 'index', + axis: 'y' + } +}); + +core_defaults._set('global', { + datasets: { + horizontalBar: { + categoryPercentage: 0.8, + barPercentage: 0.9 + } + } +}); + +var controller_horizontalBar = controller_bar.extend({ + /** + * @private + */ + _getValueScaleId: function() { + return this.getMeta().xAxisID; + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.getMeta().yAxisID; + } +}); + +var valueOrDefault$6 = helpers$1.valueOrDefault; +var resolve$2 = helpers$1.options.resolve; +var isPointInArea = helpers$1.canvas._isPointInArea; + +core_defaults._set('line', { + showLines: true, + spanGaps: false, + + hover: { + mode: 'label' + }, + + scales: { + xAxes: [{ + type: 'category', + id: 'x-axis-0' + }], + yAxes: [{ + type: 'linear', + id: 'y-axis-0' + }] + } +}); + +function scaleClip(scale, halfBorderWidth) { + var tickOpts = scale && scale.options.ticks || {}; + var reverse = tickOpts.reverse; + var min = tickOpts.min === undefined ? halfBorderWidth : 0; + var max = tickOpts.max === undefined ? halfBorderWidth : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; +} + +function defaultClip(xScale, yScale, borderWidth) { + var halfBorderWidth = borderWidth / 2; + var x = scaleClip(xScale, halfBorderWidth); + var y = scaleClip(yScale, halfBorderWidth); + + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; +} + +function toClip(value) { + var t, r, b, l; + + if (helpers$1.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 + }; +} + + +var controller_line = core_datasetController.extend({ + + datasetElementType: elements.Line, + + dataElementType: elements.Point, + + /** + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderCapStyle', + 'borderColor', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'borderWidth', + 'cubicInterpolationMode', + 'fill' + ], + + /** + * @private + */ + _dataElementOptions: { + backgroundColor: 'pointBackgroundColor', + borderColor: 'pointBorderColor', + borderWidth: 'pointBorderWidth', + hitRadius: 'pointHitRadius', + hoverBackgroundColor: 'pointHoverBackgroundColor', + hoverBorderColor: 'pointHoverBorderColor', + hoverBorderWidth: 'pointHoverBorderWidth', + hoverRadius: 'pointHoverRadius', + pointStyle: 'pointStyle', + radius: 'pointRadius', + rotation: 'pointRotation' + }, + + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var line = meta.dataset; + var points = meta.data || []; + var options = me.chart.options; + var config = me._config; + var showLine = me._showLine = valueOrDefault$6(config.showLine, options.showLines); + var i, ilen; + + me._xScale = me.getScaleForId(meta.xAxisID); + me._yScale = me.getScaleForId(meta.yAxisID); + + // Update Line + if (showLine) { + // Compatibility: If the properties are defined with only the old name, use those values + if (config.tension !== undefined && config.lineTension === undefined) { + config.lineTension = config.tension; + } + + // Utility + line._scale = me._yScale; + line._datasetIndex = me.index; + // Data + line._children = points; + // Model + line._model = me._resolveDatasetElementOptions(line); + + line.pivot(); + } + + // Update Points + for (i = 0, ilen = points.length; i < ilen; ++i) { + me.updateElement(points[i], i, reset); + } + + if (showLine && line._model.tension !== 0) { + me.updateBezierControlPoints(); + } + + // Now pivot the point for animation + for (i = 0, ilen = points.length; i < ilen; ++i) { + points[i].pivot(); + } + }, + + updateElement: function(point, index, reset) { + var me = this; + var meta = me.getMeta(); + var custom = point.custom || {}; + var dataset = me.getDataset(); + var datasetIndex = me.index; + var value = dataset.data[index]; + var xScale = me._xScale; + var yScale = me._yScale; + var lineModel = meta.dataset._model; + var x, y; + + var options = me._resolveDataElementOptions(point, index); + + x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex); + y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex); + + // Utility + point._xScale = xScale; + point._yScale = yScale; + point._options = options; + point._datasetIndex = datasetIndex; + point._index = index; + + // Desired view properties + point._model = { + x: x, + y: y, + skip: custom.skip || isNaN(x) || isNaN(y), + // Appearance + radius: options.radius, + pointStyle: options.pointStyle, + rotation: options.rotation, + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + tension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0), + steppedLine: lineModel ? lineModel.steppedLine : false, + // Tooltip + hitRadius: options.hitRadius + }; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function(element) { + var me = this; + var config = me._config; + var custom = element.custom || {}; + var options = me.chart.options; + var lineOptions = options.elements.line; + var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments); + + // The default behavior of lines is to break at null values, according + // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158 + // This option gives lines the ability to span gaps + values.spanGaps = valueOrDefault$6(config.spanGaps, options.spanGaps); + values.tension = valueOrDefault$6(config.lineTension, lineOptions.tension); + values.steppedLine = resolve$2([custom.steppedLine, config.steppedLine, lineOptions.stepped]); + values.clip = toClip(valueOrDefault$6(config.clip, defaultClip(me._xScale, me._yScale, values.borderWidth))); + + return values; + }, + + calculatePointY: function(value, index, datasetIndex) { + var me = this; + var chart = me.chart; + var yScale = me._yScale; + var sumPos = 0; + var sumNeg = 0; + var i, ds, dsMeta, stackedRightValue, rightValue, metasets, ilen; + + if (yScale.options.stacked) { + rightValue = +yScale.getRightValue(value); + metasets = chart._getSortedVisibleDatasetMetas(); + ilen = metasets.length; + + for (i = 0; i < ilen; ++i) { + dsMeta = metasets[i]; + if (dsMeta.index === datasetIndex) { + break; + } + + ds = chart.data.datasets[dsMeta.index]; + if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id) { + stackedRightValue = +yScale.getRightValue(ds.data[index]); + if (stackedRightValue < 0) { + sumNeg += stackedRightValue || 0; + } else { + sumPos += stackedRightValue || 0; + } + } + } + + if (rightValue < 0) { + return yScale.getPixelForValue(sumNeg + rightValue); + } + return yScale.getPixelForValue(sumPos + rightValue); + } + return yScale.getPixelForValue(value); + }, + + updateBezierControlPoints: function() { + var me = this; + var chart = me.chart; + var meta = me.getMeta(); + var lineModel = meta.dataset._model; + var area = chart.chartArea; + var points = meta.data || []; + var i, ilen, model, controlPoints; + + // Only consider points that are drawn in case the spanGaps option is used + if (lineModel.spanGaps) { + points = points.filter(function(pt) { + return !pt._model.skip; + }); + } + + function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); + } + + if (lineModel.cubicInterpolationMode === 'monotone') { + helpers$1.splineCurveMonotone(points); + } else { + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + controlPoints = helpers$1.splineCurve( + helpers$1.previousItem(points, i)._model, + model, + helpers$1.nextItem(points, i)._model, + lineModel.tension + ); + model.controlPointPreviousX = controlPoints.previous.x; + model.controlPointPreviousY = controlPoints.previous.y; + model.controlPointNextX = controlPoints.next.x; + model.controlPointNextY = controlPoints.next.y; + } + } + + if (chart.options.elements.line.capBezierPoints) { + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + if (isPointInArea(model, area)) { + if (i > 0 && isPointInArea(points[i - 1]._model, area)) { + model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right); + model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom); + } + if (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) { + model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right); + model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom); + } + } + } + } + }, + + draw: function() { + var me = this; + var chart = me.chart; + var meta = me.getMeta(); + var points = meta.data || []; + var area = chart.chartArea; + var canvas = chart.canvas; + var i = 0; + var ilen = points.length; + var clip; + + if (me._showLine) { + clip = meta.dataset._model.clip; + + helpers$1.canvas.clipArea(chart.ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? canvas.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? canvas.height : area.bottom + clip.bottom + }); + + meta.dataset.draw(); + + helpers$1.canvas.unclipArea(chart.ctx); + } + + // Draw the points + for (; i < ilen; ++i) { + points[i].draw(area); + } + }, + + /** + * @protected + */ + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth); + model.radius = valueOrDefault$6(options.hoverRadius, options.radius); + }, +}); + +var resolve$3 = helpers$1.options.resolve; + +core_defaults._set('polarArea', { + scale: { + type: 'radialLinear', + angleLines: { + display: false + }, + gridLines: { + circular: true + }, + pointLabels: { + display: false + }, + ticks: { + beginAtZero: true + } + }, + + // Boolean - Whether to animate the rotation of the chart + animation: { + animateRotate: true, + animateScale: true + }, + + startAngle: -0.5 * Math.PI, + legendCallback: function(chart) { + var list = document.createElement('ul'); + var data = chart.data; + var datasets = data.datasets; + var labels = data.labels; + var i, ilen, listItem, listItemSpan; + + list.setAttribute('class', chart.id + '-legend'); + if (datasets.length) { + for (i = 0, ilen = datasets[0].data.length; i < ilen; ++i) { + listItem = list.appendChild(document.createElement('li')); + listItemSpan = listItem.appendChild(document.createElement('span')); + listItemSpan.style.backgroundColor = datasets[0].backgroundColor[i]; + if (labels[i]) { + listItem.appendChild(document.createTextNode(labels[i])); + } + } + } + + return list.outerHTML; + }, + legend: { + labels: { + generateLabels: function(chart) { + var data = chart.data; + if (data.labels.length && data.datasets.length) { + return data.labels.map(function(label, i) { + var meta = chart.getDatasetMeta(0); + var style = meta.controller.getStyle(i); + + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + hidden: isNaN(data.datasets[0].data[i]) || meta.data[i].hidden, + + // Extra data used for toggling the correct item + index: i + }; + }); + } + return []; + } + }, + + onClick: function(e, legendItem) { + var index = legendItem.index; + var chart = this.chart; + var i, ilen, meta; + + for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) { + meta = chart.getDatasetMeta(i); + meta.data[index].hidden = !meta.data[index].hidden; + } + + chart.update(); + } + }, + + // Need to override these to give a nice default + tooltips: { + callbacks: { + title: function() { + return ''; + }, + label: function(item, data) { + return data.labels[item.index] + ': ' + item.yLabel; + } + } + } +}); + +var controller_polarArea = core_datasetController.extend({ + + dataElementType: elements.Arc, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _dataElementOptions: [ + 'backgroundColor', + 'borderColor', + 'borderWidth', + 'borderAlign', + 'hoverBackgroundColor', + 'hoverBorderColor', + 'hoverBorderWidth', + ], + + /** + * @private + */ + _getIndexScaleId: function() { + return this.chart.scale.id; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.chart.scale.id; + }, + + update: function(reset) { + var me = this; + var dataset = me.getDataset(); + var meta = me.getMeta(); + var start = me.chart.options.startAngle || 0; + var starts = me._starts = []; + var angles = me._angles = []; + var arcs = meta.data; + var i, ilen, angle; + + me._updateRadius(); + + meta.count = me.countVisibleElements(); + + for (i = 0, ilen = dataset.data.length; i < ilen; i++) { + starts[i] = start; + angle = me._computeAngle(i); + angles[i] = angle; + start += angle; + } + + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + arcs[i]._options = me._resolveDataElementOptions(arcs[i], i); + me.updateElement(arcs[i], i, reset); + } + }, + + /** + * @private + */ + _updateRadius: function() { + var me = this; + var chart = me.chart; + var chartArea = chart.chartArea; + var opts = chart.options; + var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + + chart.outerRadius = Math.max(minSize / 2, 0); + chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); + chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount(); + + me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index); + me.innerRadius = me.outerRadius - chart.radiusLength; + }, + + updateElement: function(arc, index, reset) { + var me = this; + var chart = me.chart; + var dataset = me.getDataset(); + var opts = chart.options; + var animationOpts = opts.animation; + var scale = chart.scale; + var labels = chart.data.labels; + + var centerX = scale.xCenter; + var centerY = scale.yCenter; + + // var negHalfPI = -0.5 * Math.PI; + var datasetStartAngle = opts.startAngle; + var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); + var startAngle = me._starts[index]; + var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]); + + var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]); + var options = arc._options || {}; + + helpers$1.extend(arc, { + // Utility + _datasetIndex: me.index, + _index: index, + _scale: scale, + + // Desired view properties + _model: { + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + borderAlign: options.borderAlign, + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius: reset ? resetRadius : distance, + startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle, + endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle, + label: helpers$1.valueAtIndexOrDefault(labels, index, labels[index]) + } + }); + + arc.pivot(); + }, + + countVisibleElements: function() { + var dataset = this.getDataset(); + var meta = this.getMeta(); + var count = 0; + + helpers$1.each(meta.data, function(element, index) { + if (!isNaN(dataset.data[index]) && !element.hidden) { + count++; + } + }); + + return count; + }, + + /** + * @protected + */ + setHoverStyle: function(arc) { + var model = arc._model; + var options = arc._options; + var getHoverColor = helpers$1.getHoverColor; + var valueOrDefault = helpers$1.valueOrDefault; + + arc.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + }; + + model.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth); + }, + + /** + * @private + */ + _computeAngle: function(index) { + var me = this; + var count = this.getMeta().count; + var dataset = me.getDataset(); + var meta = me.getMeta(); + + if (isNaN(dataset.data[index]) || meta.data[index].hidden) { + return 0; + } + + // Scriptable options + var context = { + chart: me.chart, + dataIndex: index, + dataset: dataset, + datasetIndex: me.index + }; + + return resolve$3([ + me.chart.options.elements.arc.angle, + (2 * Math.PI) / count + ], context, index); + } +}); + +core_defaults._set('pie', helpers$1.clone(core_defaults.doughnut)); +core_defaults._set('pie', { + cutoutPercentage: 0 +}); + +// Pie charts are Doughnut chart with different defaults +var controller_pie = controller_doughnut; + +var valueOrDefault$7 = helpers$1.valueOrDefault; + +core_defaults._set('radar', { + spanGaps: false, + scale: { + type: 'radialLinear' + }, + elements: { + line: { + fill: 'start', + tension: 0 // no bezier in radar + } + } +}); + +var controller_radar = core_datasetController.extend({ + datasetElementType: elements.Line, + + dataElementType: elements.Point, + + linkScales: helpers$1.noop, + + /** + * @private + */ + _datasetElementOptions: [ + 'backgroundColor', + 'borderWidth', + 'borderColor', + 'borderCapStyle', + 'borderDash', + 'borderDashOffset', + 'borderJoinStyle', + 'fill' + ], + + /** + * @private + */ + _dataElementOptions: { + backgroundColor: 'pointBackgroundColor', + borderColor: 'pointBorderColor', + borderWidth: 'pointBorderWidth', + hitRadius: 'pointHitRadius', + hoverBackgroundColor: 'pointHoverBackgroundColor', + hoverBorderColor: 'pointHoverBorderColor', + hoverBorderWidth: 'pointHoverBorderWidth', + hoverRadius: 'pointHoverRadius', + pointStyle: 'pointStyle', + radius: 'pointRadius', + rotation: 'pointRotation' + }, + + /** + * @private + */ + _getIndexScaleId: function() { + return this.chart.scale.id; + }, + + /** + * @private + */ + _getValueScaleId: function() { + return this.chart.scale.id; + }, + + update: function(reset) { + var me = this; + var meta = me.getMeta(); + var line = meta.dataset; + var points = meta.data || []; + var scale = me.chart.scale; + var config = me._config; + var i, ilen; + + // Compatibility: If the properties are defined with only the old name, use those values + if (config.tension !== undefined && config.lineTension === undefined) { + config.lineTension = config.tension; + } + + // Utility + line._scale = scale; + line._datasetIndex = me.index; + // Data + line._children = points; + line._loop = true; + // Model + line._model = me._resolveDatasetElementOptions(line); + + line.pivot(); + + // Update Points + for (i = 0, ilen = points.length; i < ilen; ++i) { + me.updateElement(points[i], i, reset); + } + + // Update bezier control points + me.updateBezierControlPoints(); + + // Now pivot the point for animation + for (i = 0, ilen = points.length; i < ilen; ++i) { + points[i].pivot(); + } + }, + + updateElement: function(point, index, reset) { + var me = this; + var custom = point.custom || {}; + var dataset = me.getDataset(); + var scale = me.chart.scale; + var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]); + var options = me._resolveDataElementOptions(point, index); + var lineModel = me.getMeta().dataset._model; + var x = reset ? scale.xCenter : pointPosition.x; + var y = reset ? scale.yCenter : pointPosition.y; + + // Utility + point._scale = scale; + point._options = options; + point._datasetIndex = me.index; + point._index = index; + + // Desired view properties + point._model = { + x: x, // value not used in dataset scale, but we want a consistent API between scales + y: y, + skip: custom.skip || isNaN(x) || isNaN(y), + // Appearance + radius: options.radius, + pointStyle: options.pointStyle, + rotation: options.rotation, + backgroundColor: options.backgroundColor, + borderColor: options.borderColor, + borderWidth: options.borderWidth, + tension: valueOrDefault$7(custom.tension, lineModel ? lineModel.tension : 0), + + // Tooltip + hitRadius: options.hitRadius + }; + }, + + /** + * @private + */ + _resolveDatasetElementOptions: function() { + var me = this; + var config = me._config; + var options = me.chart.options; + var values = core_datasetController.prototype._resolveDatasetElementOptions.apply(me, arguments); + + values.spanGaps = valueOrDefault$7(config.spanGaps, options.spanGaps); + values.tension = valueOrDefault$7(config.lineTension, options.elements.line.tension); + + return values; + }, + + updateBezierControlPoints: function() { + var me = this; + var meta = me.getMeta(); + var area = me.chart.chartArea; + var points = meta.data || []; + var i, ilen, model, controlPoints; + + // Only consider points that are drawn in case the spanGaps option is used + if (meta.dataset._model.spanGaps) { + points = points.filter(function(pt) { + return !pt._model.skip; + }); + } + + function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); + } + + for (i = 0, ilen = points.length; i < ilen; ++i) { + model = points[i]._model; + controlPoints = helpers$1.splineCurve( + helpers$1.previousItem(points, i, true)._model, + model, + helpers$1.nextItem(points, i, true)._model, + model.tension + ); + + // Prevent the bezier going outside of the bounds of the graph + model.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right); + model.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom); + model.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right); + model.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom); + } + }, + + setHoverStyle: function(point) { + var model = point._model; + var options = point._options; + var getHoverColor = helpers$1.getHoverColor; + + point.$previousStyle = { + backgroundColor: model.backgroundColor, + borderColor: model.borderColor, + borderWidth: model.borderWidth, + radius: model.radius + }; + + model.backgroundColor = valueOrDefault$7(options.hoverBackgroundColor, getHoverColor(options.backgroundColor)); + model.borderColor = valueOrDefault$7(options.hoverBorderColor, getHoverColor(options.borderColor)); + model.borderWidth = valueOrDefault$7(options.hoverBorderWidth, options.borderWidth); + model.radius = valueOrDefault$7(options.hoverRadius, options.radius); + } +}); + +core_defaults._set('scatter', { + hover: { + mode: 'single' + }, + + scales: { + xAxes: [{ + id: 'x-axis-1', // need an ID so datasets can reference the scale + type: 'linear', // scatter should not use a category axis + position: 'bottom' + }], + yAxes: [{ + id: 'y-axis-1', + type: 'linear', + position: 'left' + }] + }, + + tooltips: { + callbacks: { + title: function() { + return ''; // doesn't make sense for scatter since data are formatted as a point + }, + label: function(item) { + return '(' + item.xLabel + ', ' + item.yLabel + ')'; + } + } + } +}); + +core_defaults._set('global', { + datasets: { + scatter: { + showLine: false + } + } +}); + +// Scatter charts use line controllers +var controller_scatter = controller_line; + +// NOTE export a map in which the key represents the controller type, not +// the class, and so must be CamelCase in order to be correctly retrieved +// by the controller in core.controller.js (`controllers[meta.type]`). + +var controllers = { + bar: controller_bar, + bubble: controller_bubble, + doughnut: controller_doughnut, + horizontalBar: controller_horizontalBar, + line: controller_line, + polarArea: controller_polarArea, + pie: controller_pie, + radar: controller_radar, + scatter: controller_scatter +}; + +/** + * Helper function to get relative position for an event + * @param {Event|IEvent} event - The event to get the position for + * @param {Chart} chart - The chart + * @returns {object} the event position + */ +function getRelativePosition(e, chart) { + if (e.native) { + return { + x: e.x, + y: e.y + }; + } + + return helpers$1.getRelativePosition(e, chart); +} + +/** + * Helper function to traverse all of the visible elements in the chart + * @param {Chart} chart - the chart + * @param {function} handler - the callback to execute for each visible item + */ +function parseVisibleItems(chart, handler) { + var metasets = chart._getSortedVisibleDatasetMetas(); + var metadata, i, j, ilen, jlen, element; + + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + metadata = metasets[i].data; + for (j = 0, jlen = metadata.length; j < jlen; ++j) { + element = metadata[j]; + if (!element._view.skip) { + handler(element); + } + } + } +} + +/** + * Helper function to get the items that intersect the event position + * @param {ChartElement[]} items - elements to filter + * @param {object} position - the point to be nearest to + * @return {ChartElement[]} the nearest items + */ +function getIntersectItems(chart, position) { + var elements = []; + + parseVisibleItems(chart, function(element) { + if (element.inRange(position.x, position.y)) { + elements.push(element); + } + }); + + return elements; +} + +/** + * Helper function to get the items nearest to the event position considering all visible items in teh chart + * @param {Chart} chart - the chart to look at elements from + * @param {object} position - the point to be nearest to + * @param {boolean} intersect - if true, only consider items that intersect the position + * @param {function} distanceMetric - function to provide the distance between points + * @return {ChartElement[]} the nearest items + */ +function getNearestItems(chart, position, intersect, distanceMetric) { + var minDistance = Number.POSITIVE_INFINITY; + var nearestItems = []; + + parseVisibleItems(chart, function(element) { + if (intersect && !element.inRange(position.x, position.y)) { + return; + } + + var center = element.getCenterPoint(); + var distance = distanceMetric(position, center); + if (distance < minDistance) { + nearestItems = [element]; + minDistance = distance; + } else if (distance === minDistance) { + // Can have multiple items at the same distance in which case we sort by size + nearestItems.push(element); + } + }); + + return nearestItems; +} + +/** + * Get a distance metric function for two points based on the + * axis mode setting + * @param {string} axis - the axis mode. x|y|xy + */ +function getDistanceMetricForAxis(axis) { + var useX = axis.indexOf('x') !== -1; + var useY = axis.indexOf('y') !== -1; + + return function(pt1, pt2) { + var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; +} + +function indexMode(chart, e, options) { + var position = getRelativePosition(e, chart); + // Default axis for index mode is 'x' to match old behaviour + options.axis = options.axis || 'x'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); + var elements = []; + + if (!items.length) { + return []; + } + + chart._getSortedVisibleDatasetMetas().forEach(function(meta) { + var element = meta.data[items[0]._index]; + + // don't count items that are skipped (null data) + if (element && !element._view.skip) { + elements.push(element); + } + }); + + return elements; +} + +/** + * @interface IInteractionOptions + */ +/** + * If true, only consider items that intersect the point + * @name IInterfaceOptions#boolean + * @type Boolean + */ + +/** + * Contains interaction related functions + * @namespace Chart.Interaction + */ +var core_interaction = { + // Helper function for different modes + modes: { + single: function(chart, e) { + var position = getRelativePosition(e, chart); + var elements = []; + + parseVisibleItems(chart, function(element) { + if (element.inRange(position.x, position.y)) { + elements.push(element); + return elements; + } + }); + + return elements.slice(0, 1); + }, + + /** + * @function Chart.Interaction.modes.label + * @deprecated since version 2.4.0 + * @todo remove at version 3 + * @private + */ + label: indexMode, + + /** + * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something + * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item + * @function Chart.Interaction.modes.index + * @since v2.4.0 + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use during interaction + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + index: indexMode, + + /** + * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something + * If the options.intersect is false, we find the nearest item and return the items in that dataset + * @function Chart.Interaction.modes.dataset + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use during interaction + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + dataset: function(chart, e, options) { + var position = getRelativePosition(e, chart); + options.axis = options.axis || 'xy'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric); + + if (items.length > 0) { + items = chart.getDatasetMeta(items[0]._datasetIndex).data; + } + + return items; + }, + + /** + * @function Chart.Interaction.modes.x-axis + * @deprecated since version 2.4.0. Use index mode and intersect == true + * @todo remove at version 3 + * @private + */ + 'x-axis': function(chart, e) { + return indexMode(chart, e, {intersect: false}); + }, + + /** + * Point mode returns all elements that hit test based on the event position + * of the event + * @function Chart.Interaction.modes.intersect + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + point: function(chart, e) { + var position = getRelativePosition(e, chart); + return getIntersectItems(chart, position); + }, + + /** + * nearest mode returns the element closest to the point + * @function Chart.Interaction.modes.intersect + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + nearest: function(chart, e, options) { + var position = getRelativePosition(e, chart); + options.axis = options.axis || 'xy'; + var distanceMetric = getDistanceMetricForAxis(options.axis); + return getNearestItems(chart, position, options.intersect, distanceMetric); + }, + + /** + * x mode returns the elements that hit-test at the current x coordinate + * @function Chart.Interaction.modes.x + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + x: function(chart, e, options) { + var position = getRelativePosition(e, chart); + var items = []; + var intersectsItem = false; + + parseVisibleItems(chart, function(element) { + if (element.inXRange(position.x)) { + items.push(element); + } + + if (element.inRange(position.x, position.y)) { + intersectsItem = true; + } + }); + + // If we want to trigger on an intersect and we don't have any items + // that intersect the position, return nothing + if (options.intersect && !intersectsItem) { + items = []; + } + return items; + }, + + /** + * y mode returns the elements that hit-test at the current y coordinate + * @function Chart.Interaction.modes.y + * @param {Chart} chart - the chart we are returning items from + * @param {Event} e - the event we are find things at + * @param {IInteractionOptions} options - options to use + * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned + */ + y: function(chart, e, options) { + var position = getRelativePosition(e, chart); + var items = []; + var intersectsItem = false; + + parseVisibleItems(chart, function(element) { + if (element.inYRange(position.y)) { + items.push(element); + } + + if (element.inRange(position.x, position.y)) { + intersectsItem = true; + } + }); + + // If we want to trigger on an intersect and we don't have any items + // that intersect the position, return nothing + if (options.intersect && !intersectsItem) { + items = []; + } + return items; + } + } +}; + +var extend = helpers$1.extend; + +function filterByPosition(array, position) { + return helpers$1.where(array, function(v) { + return v.pos === position; + }); +} + +function sortByWeight(array, reverse) { + return array.sort(function(a, b) { + var v0 = reverse ? b : a; + var v1 = reverse ? a : b; + return v0.weight === v1.weight ? + v0.index - v1.index : + v0.weight - v1.weight; + }); +} + +function wrapBoxes(boxes) { + var layoutBoxes = []; + var i, ilen, box; + + for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { + box = boxes[i]; + layoutBoxes.push({ + index: i, + box: box, + pos: box.position, + horizontal: box.isHorizontal(), + weight: box.weight + }); + } + return layoutBoxes; +} + +function setLayoutDims(layouts, params) { + var i, ilen, layout; + for (i = 0, ilen = layouts.length; i < ilen; ++i) { + layout = layouts[i]; + // store width used instead of chartArea.w in fitBoxes + layout.width = layout.horizontal + ? layout.box.fullWidth && params.availableWidth + : params.vBoxMaxWidth; + // store height used instead of chartArea.h in fitBoxes + layout.height = layout.horizontal && params.hBoxMaxHeight; + } +} + +function buildLayoutBoxes(boxes) { + var layoutBoxes = wrapBoxes(boxes); + var left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + var right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + var top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + var bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + + return { + leftAndTop: left.concat(top), + rightAndBottom: right.concat(bottom), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right), + horizontal: top.concat(bottom) + }; +} + +function getCombinedMax(maxPadding, chartArea, a, b) { + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); +} + +function updateDims(chartArea, params, layout) { + var box = layout.box; + var maxPadding = chartArea.maxPadding; + var newWidth, newHeight; + + if (layout.size) { + // this layout was already counted for, lets first reduce old size + chartArea[layout.pos] -= layout.size; + } + layout.size = layout.horizontal ? box.height : box.width; + chartArea[layout.pos] += layout.size; + + if (box.getPadding) { + var boxPadding = box.getPadding(); + 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); + } + + newWidth = params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right'); + newHeight = params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom'); + + if (newWidth !== chartArea.w || newHeight !== chartArea.h) { + chartArea.w = newWidth; + chartArea.h = newHeight; + + // return true if chart area changed in layout's direction + return layout.horizontal ? newWidth !== chartArea.w : newHeight !== chartArea.h; + } +} + +function handleMaxPadding(chartArea) { + var maxPadding = chartArea.maxPadding; + + function updatePos(pos) { + var 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) { + var maxPadding = chartArea.maxPadding; + + function marginForPositions(positions) { + var margin = {left: 0, top: 0, right: 0, bottom: 0}; + positions.forEach(function(pos) { + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + + return horizontal + ? marginForPositions(['left', 'right']) + : marginForPositions(['top', 'bottom']); +} + +function fitBoxes(boxes, chartArea, params) { + var refitBoxes = []; + var i, ilen, layout, box, refit, changed; + + for (i = 0, ilen = boxes.length; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + + box.update( + layout.width || chartArea.w, + layout.height || chartArea.h, + getMargins(layout.horizontal, chartArea) + ); + if (updateDims(chartArea, params, layout)) { + changed = true; + if (refitBoxes.length) { + // Dimensions changed and there were non full width boxes before this + // -> we have to refit those + refit = true; + } + } + if (!box.fullWidth) { // fullWidth boxes don't need to be re-fitted in any case + refitBoxes.push(layout); + } + } + + return refit ? fitBoxes(refitBoxes, chartArea, params) || changed : changed; +} + +function placeBoxes(boxes, chartArea, params) { + var userPadding = params.padding; + var x = chartArea.x; + var y = chartArea.y; + var i, ilen, layout, box; + + for (i = 0, ilen = boxes.length; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + if (layout.horizontal) { + box.left = box.fullWidth ? userPadding.left : chartArea.left; + box.right = box.fullWidth ? params.outerWidth - userPadding.right : chartArea.left + chartArea.w; + box.top = y; + box.bottom = y + box.height; + box.width = box.right - box.left; + y = box.bottom; + } else { + box.left = x; + box.right = x + box.width; + box.top = chartArea.top; + box.bottom = chartArea.top + chartArea.h; + box.height = box.bottom - box.top; + x = box.right; + } + } + + chartArea.x = x; + chartArea.y = y; +} + +core_defaults._set('global', { + layout: { + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } + } +}); + +/** + * @interface ILayoutItem + * @prop {string} position - The position of the item in the chart layout. Possible values are + * 'left', 'top', 'right', 'bottom', and 'chartArea' + * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area + * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down + * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom) + * @prop {function} update - Takes two parameters: width and height. Returns size of item + * @prop {function} getPadding - Returns an object with padding on the edges + * @prop {number} width - Width of item. Must be valid after update() + * @prop {number} height - Height of item. Must be valid after update() + * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update + * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update + * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update + * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update + */ + +// The layout service is very self explanatory. It's responsible for the layout within a chart. +// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need +// It is this service's responsibility of carrying out that layout. +var core_layouts = { + defaults: {}, + + /** + * Register a box to a chart. + * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title. + * @param {Chart} chart - the chart to use + * @param {ILayoutItem} item - the item to add to be layed out + */ + addBox: function(chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + + // initialize item with default values + item.fullWidth = item.fullWidth || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [{ + z: 0, + draw: function() { + item.draw.apply(item, arguments); + } + }]; + }; + + chart.boxes.push(item); + }, + + /** + * Remove a layoutItem from a chart + * @param {Chart} chart - the chart to remove the box from + * @param {ILayoutItem} layoutItem - the item to remove from the layout + */ + removeBox: function(chart, layoutItem) { + var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + + /** + * Sets (or updates) options on the given `item`. + * @param {Chart} chart - the chart in which the item lives (or will be added to) + * @param {ILayoutItem} item - the item to configure with the given options + * @param {object} options - the new item options. + */ + configure: function(chart, item, options) { + var props = ['fullWidth', 'position', 'weight']; + var ilen = props.length; + var i = 0; + var prop; + + for (; i < ilen; ++i) { + prop = props[i]; + if (options.hasOwnProperty(prop)) { + item[prop] = options[prop]; + } + } + }, + + /** + * Fits boxes of the given chart into the given size by having each box measure itself + * then running a fitting algorithm + * @param {Chart} chart - the chart + * @param {number} width - the width to fit into + * @param {number} height - the height to fit into + */ + update: function(chart, width, height) { + if (!chart) { + return; + } + + var layoutOptions = chart.options.layout || {}; + var padding = helpers$1.options.toPadding(layoutOptions.padding); + + var availableWidth = width - padding.width; + var availableHeight = height - padding.height; + var boxes = buildLayoutBoxes(chart.boxes); + var verticalBoxes = boxes.vertical; + var horizontalBoxes = boxes.horizontal; + + // Essentially we now have any number of boxes on each of the 4 sides. + // Our canvas looks like the following. + // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and + // B1 is the bottom axis + // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays + // These locations are single-box locations only, when trying to register a chartArea location that is already taken, + // an error will be thrown. + // + // |----------------------------------------------------| + // | T1 (Full Width) | + // |----------------------------------------------------| + // | | | T2 | | + // | |----|-------------------------------------|----| + // | | | C1 | | C2 | | + // | | |----| |----| | + // | | | | | + // | L1 | L2 | ChartArea (C0) | R1 | + // | | | | | + // | | |----| |----| | + // | | | C3 | | C4 | | + // | |----|-------------------------------------|----| + // | | | B1 | | + // |----------------------------------------------------| + // | B2 (Full Width) | + // |----------------------------------------------------| + // + + var params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding: padding, + availableWidth: availableWidth, + vBoxMaxWidth: availableWidth / 2 / verticalBoxes.length, + hBoxMaxHeight: availableHeight / 2 + }); + var chartArea = extend({ + maxPadding: extend({}, padding), + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + + setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + + // First fit vertical boxes + fitBoxes(verticalBoxes, chartArea, params); + + // Then fit horizontal boxes + if (fitBoxes(horizontalBoxes, chartArea, params)) { + // if the area changed, re-fit vertical boxes + fitBoxes(verticalBoxes, chartArea, params); + } + + handleMaxPadding(chartArea); + + // Finally place the boxes to correct coordinates + placeBoxes(boxes.leftAndTop, chartArea, params); + + // Move to opposite side of chart + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + + placeBoxes(boxes.rightAndBottom, chartArea, params); + + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h + }; + + // Finally update boxes in chartArea (radial scale for example) + helpers$1.each(boxes.chartArea, function(layout) { + var box = layout.box; + extend(box, chart.chartArea); + box.update(chartArea.w, chartArea.h); + }); + } +}; -},{"41":41,"42":42,"43":43,"44":44}],46:[function(require,module,exports){ /** * Platform fallback implementation (minimal). * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939 */ -module.exports = { +var platform_basic = { acquireContext: function(item) { if (item && item.canvas) { // Support for any object associated to a canvas (including a context2d) @@ -10504,17 +7386,18 @@ module.exports = { } }; -},{}],47:[function(require,module,exports){ -/** - * Chart.Platform implementation for targeting a web browser - */ +var platform_dom = "/*\n * DOM element rendering detection\n * https://davidwalsh.name/detect-node-insertion\n */\n@keyframes chartjs-render-animation {\n\tfrom { opacity: 0.99; }\n\tto { opacity: 1; }\n}\n\n.chartjs-render-monitor {\n\tanimation: chartjs-render-animation 0.001s;\n}\n\n/*\n * DOM element resizing detection\n * https://github.com/marcj/css-element-queries\n */\n.chartjs-size-monitor,\n.chartjs-size-monitor-expand,\n.chartjs-size-monitor-shrink {\n\tposition: absolute;\n\tdirection: ltr;\n\tleft: 0;\n\ttop: 0;\n\tright: 0;\n\tbottom: 0;\n\toverflow: hidden;\n\tpointer-events: none;\n\tvisibility: hidden;\n\tz-index: -1;\n}\n\n.chartjs-size-monitor-expand > div {\n\tposition: absolute;\n\twidth: 1000000px;\n\theight: 1000000px;\n\tleft: 0;\n\ttop: 0;\n}\n\n.chartjs-size-monitor-shrink > div {\n\tposition: absolute;\n\twidth: 200%;\n\theight: 200%;\n\tleft: 0;\n\ttop: 0;\n}\n"; -'use strict'; +var platform_dom$1 = /*#__PURE__*/Object.freeze({ +__proto__: null, +'default': platform_dom +}); -var helpers = require(45); +var stylesheet = getCjsExportFromNamespace(platform_dom$1); var EXPANDO_KEY = '$chartjs'; var CSS_PREFIX = 'chartjs-'; +var CSS_SIZE_MONITOR = CSS_PREFIX + 'size-monitor'; var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor'; var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation'; var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart']; @@ -10543,10 +7426,10 @@ var EVENT_TYPES = { * `element` has a size relative to its parent and this last one is not yet displayed, * for example because of `display: none` on a parent node. * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value - * @returns {Number} Size in pixels or undefined if unknown. + * @returns {number} Size in pixels or undefined if unknown. */ function readUsedSize(element, property) { - var value = helpers.getStyle(element, property); + var value = helpers$1.getStyle(element, property); var matches = value && value.match(/^(\d+)(\.\d+)?px$/); return matches ? Number(matches[1]) : undefined; } @@ -10615,6 +7498,7 @@ var supportsEventListenerOptions = (function() { var supports = false; try { var options = Object.defineProperty({}, 'passive', { + // eslint-disable-next-line getter-return get: function() { supports = true; } @@ -10630,11 +7514,11 @@ var supportsEventListenerOptions = (function() { // https://github.com/chartjs/Chart.js/issues/4287 var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; -function addEventListener(node, type, listener) { +function addListener(node, type, listener) { node.addEventListener(type, listener, eventListenerOptions); } -function removeEventListener(node, type, listener) { +function removeListener(node, type, listener) { node.removeEventListener(type, listener, eventListenerOptions); } @@ -10650,7 +7534,7 @@ function createEvent(type, chart, x, y, nativeEvent) { function fromNativeEvent(event, chart) { var type = EVENT_TYPES[event.type] || event.type; - var pos = helpers.getRelativePosition(event, chart); + var pos = helpers$1.getRelativePosition(event, chart); return createEvent(type, chart, pos.x, pos.y, event); } @@ -10664,7 +7548,7 @@ function throttled(fn, thisArg) { if (!ticking) { ticking = true; - helpers.requestAnimFrame.call(window, function() { + helpers$1.requestAnimFrame.call(window, function() { ticking = false; fn.apply(thisArg, args); }); @@ -10672,60 +7556,41 @@ function throttled(fn, thisArg) { }; } +function createDiv(cls) { + var el = document.createElement('div'); + el.className = cls || ''; + return el; +} + // Implementation based on https://github.com/marcj/css-element-queries function createResizer(handler) { - var resizer = document.createElement('div'); - var cls = CSS_PREFIX + 'size-monitor'; var maxSize = 1000000; - var style = - 'position:absolute;' + - 'left:0;' + - 'top:0;' + - 'right:0;' + - 'bottom:0;' + - 'overflow:hidden;' + - 'pointer-events:none;' + - 'visibility:hidden;' + - 'z-index:-1;'; - resizer.style.cssText = style; - resizer.className = cls; - resizer.innerHTML = - '
' + - '
' + - '
' + - '
' + - '
' + - '
' + - '
' + - '
'; + // NOTE(SB) Don't use innerHTML because it could be considered unsafe. + // https://github.com/chartjs/Chart.js/issues/5902 + var resizer = createDiv(CSS_SIZE_MONITOR); + var expand = createDiv(CSS_SIZE_MONITOR + '-expand'); + var shrink = createDiv(CSS_SIZE_MONITOR + '-shrink'); - var expand = resizer.childNodes[0]; - var shrink = resizer.childNodes[1]; + expand.appendChild(createDiv()); + shrink.appendChild(createDiv()); + resizer.appendChild(expand); + resizer.appendChild(shrink); resizer._reset = function() { expand.scrollLeft = maxSize; expand.scrollTop = maxSize; shrink.scrollLeft = maxSize; shrink.scrollTop = maxSize; }; + var onScroll = function() { resizer._reset(); handler(); }; - addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand')); - addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink')); + addListener(expand, 'scroll', onScroll.bind(expand, 'expand')); + addListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink')); return resizer; } @@ -10739,8 +7604,8 @@ function watchForRender(node, handler) { } }; - helpers.each(ANIMATION_START_EVENTS, function(type) { - addEventListener(node, type, proxy); + helpers$1.each(ANIMATION_START_EVENTS, function(type) { + addListener(node, type, proxy); }); // #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class @@ -10758,8 +7623,8 @@ function unwatchForRender(node) { var proxy = expando.renderProxy; if (proxy) { - helpers.each(ANIMATION_START_EVENTS, function(type) { - removeEventListener(node, type, proxy); + helpers$1.each(ANIMATION_START_EVENTS, function(type) { + removeListener(node, type, proxy); }); delete expando.renderProxy; @@ -10774,7 +7639,19 @@ function addResizeListener(node, listener, chart) { // Let's keep track of this added resizer and thus avoid DOM query when removing it. var resizer = expando.resizer = createResizer(throttled(function() { if (expando.resizer) { - return listener(createEvent('resize', chart)); + var container = chart.options.maintainAspectRatio && node.parentNode; + var w = container ? container.clientWidth : 0; + listener(createEvent('resize', chart)); + if (container && container.clientWidth < w && chart.canvas) { + // If the container size shrank during chart resize, let's assume + // scrollbar appeared. So we resize again with the scrollbar visible - + // effectively making chart smaller and the scrollbar hidden again. + // Because we are inside `throttled`, and currently `ticking`, scroll + // events are ignored during this whole 2 resize process. + // If we assumed wrong and something else happened, we are resizing + // twice in a frame (potential performance issue) + listener(createEvent('resize', chart)); + } } })); @@ -10805,20 +7682,34 @@ function removeResizeListener(node) { } } -function injectCSS(platform, css) { - // http://stackoverflow.com/q/3922139 - var style = platform._style || document.createElement('style'); - if (!platform._style) { - platform._style = style; +/** + * Injects CSS styles inline if the styles are not already present. + * @param {HTMLDocument|ShadowRoot} rootNode - the node to contain the