corrade-nucleus-nucleons – Blame information for rev
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Rev | Author | Line No. | Line |
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1 | office | 1 | /** |
2 | * @license Highcharts JS v5.0.10 (2017-03-31) |
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3 | * Boost module |
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4 | * |
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5 | * (c) 2010-2017 Highsoft AS |
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6 | * Author: Torstein Honsi |
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7 | * |
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8 | * License: www.highcharts.com/license |
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9 | */ |
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10 | 'use strict'; |
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11 | (function(factory) { |
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12 | if (typeof module === 'object' && module.exports) { |
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13 | module.exports = factory; |
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14 | } else { |
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15 | factory(Highcharts); |
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16 | } |
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17 | }(function(Highcharts) { |
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18 | (function(H) { |
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19 | /** |
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20 | * License: www.highcharts.com/license |
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21 | * Author: Torstein Honsi, Christer Vasseng |
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22 | * |
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23 | * This is an experimental Highcharts module that draws long data series on a canvas |
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24 | * in order to increase performance of the initial load time and tooltip responsiveness. |
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25 | * |
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26 | * Compatible with HTML5 canvas compatible browsers (not IE < 9). |
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27 | * |
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28 | * |
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29 | * |
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30 | * Development plan |
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31 | * - Column range. |
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32 | * - Heatmap. Modify the heatmap-canvas demo so that it uses this module. |
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33 | * - Treemap. |
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34 | * - Check how it works with Highstock and data grouping. Currently it only works when navigator.adaptToUpdatedData |
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35 | * is false. It is also recommended to set scrollbar.liveRedraw to false. |
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36 | * - Check inverted charts. |
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37 | * - Check reversed axes. |
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38 | * - Chart callback should be async after last series is drawn. (But not necessarily, we don't do |
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39 | that with initial series animation). |
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40 | * - Cache full-size image so we don't have to redraw on hide/show and zoom up. But k-d-tree still |
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41 | * needs to be built. |
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42 | * - Test IE9 and IE10. |
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43 | * - Stacking is not perhaps not correct since it doesn't use the translation given in |
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44 | * the translate method. If this gets to complicated, a possible way out would be to |
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45 | * have a simplified renderCanvas method that simply draws the areaPath on a canvas. |
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46 | * |
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47 | * If this module is taken in as part of the core |
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48 | * - All the loading logic should be merged with core. Update styles in the core. |
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49 | * - Most of the method wraps should probably be added directly in parent methods. |
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50 | * |
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51 | * Notes for boost mode |
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52 | * - Area lines are not drawn |
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53 | * - Point markers are not drawn on line-type series |
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54 | * - Lines are not drawn on scatter charts |
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55 | * - Zones and negativeColor don't work |
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56 | * - Initial point colors aren't rendered |
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57 | * - Columns are always one pixel wide. Don't set the threshold too low. |
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58 | * |
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59 | * Optimizing tips for users |
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60 | * - For scatter plots, use a marker.radius of 1 or less. It results in a rectangle being drawn, which is |
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61 | * considerably faster than a circle. |
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62 | * - Set extremes (min, max) explicitly on the axes in order for Highcharts to avoid computing extremes. |
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63 | * - Set enableMouseTracking to false on the series to improve total rendering time. |
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64 | * - The default threshold is set based on one series. If you have multiple, dense series, the combined |
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65 | * number of points drawn gets higher, and you may want to set the threshold lower in order to |
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66 | * use optimizations. |
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67 | */ |
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68 | |||
69 | |||
70 | var win = H.win, |
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71 | doc = win.document, |
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72 | noop = function() {}, |
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73 | Color = H.Color, |
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74 | Series = H.Series, |
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75 | seriesTypes = H.seriesTypes, |
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76 | each = H.each, |
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77 | extend = H.extend, |
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78 | addEvent = H.addEvent, |
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79 | fireEvent = H.fireEvent, |
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80 | isNumber = H.isNumber, |
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81 | merge = H.merge, |
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82 | pick = H.pick, |
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83 | wrap = H.wrap, |
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84 | CHUNK_SIZE = 50000, |
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85 | destroyLoadingDiv; |
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86 | |||
87 | function eachAsync(arr, fn, finalFunc, chunkSize, i) { |
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88 | i = i || 0; |
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89 | chunkSize = chunkSize || CHUNK_SIZE; |
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90 | |||
91 | var threshold = i + chunkSize, |
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92 | proceed = true; |
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93 | |||
94 | while (proceed && i < threshold && i < arr.length) { |
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95 | proceed = fn(arr[i], i); |
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96 | i = i + 1; |
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97 | } |
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98 | if (proceed) { |
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99 | if (i < arr.length) { |
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100 | setTimeout(function() { |
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101 | eachAsync(arr, fn, finalFunc, chunkSize, i); |
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102 | }); |
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103 | } else if (finalFunc) { |
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104 | finalFunc(); |
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105 | } |
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106 | } |
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107 | } |
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108 | |||
109 | /* |
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110 | * Returns true if the chart is in series boost mode |
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111 | * @param chart {Highchart.Chart} - the chart to check |
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112 | * @returns {Boolean} - true if the chart is in series boost mode |
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113 | */ |
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114 | function isChartSeriesBoosting(chart) { |
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115 | var threshold = (chart.options.boost ? chart.options.boost.seriesThreshold : 0) || |
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116 | chart.options.chart.seriesBoostThreshold || |
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117 | 10; |
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118 | |||
119 | return chart.series.length >= threshold; |
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120 | } |
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121 | |||
122 | H.initCanvasBoost = function() { |
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123 | |||
124 | if (H.seriesTypes.heatmap) { |
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125 | H.wrap(H.seriesTypes.heatmap.prototype, 'drawPoints', function() { |
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126 | var ctx = this.getContext(); |
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127 | if (ctx) { |
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128 | |||
129 | // draw the columns |
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130 | each(this.points, function(point) { |
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131 | var plotY = point.plotY, |
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132 | shapeArgs, |
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133 | pointAttr; |
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134 | |||
135 | if (plotY !== undefined && !isNaN(plotY) && point.y !== null) { |
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136 | shapeArgs = point.shapeArgs; |
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137 | |||
138 | pointAttr = (point.pointAttr && point.pointAttr['']) || point.series.pointAttribs(point); |
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139 | |||
140 | ctx.fillStyle = pointAttr.fill; |
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141 | ctx.fillRect(shapeArgs.x, shapeArgs.y, shapeArgs.width, shapeArgs.height); |
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142 | } |
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143 | }); |
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144 | |||
145 | this.canvasToSVG(); |
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146 | |||
147 | } else { |
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148 | this.chart.showLoading('Your browser doesn\'t support HTML5 canvas, <br>please use a modern browser'); |
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149 | |||
150 | // Uncomment this to provide low-level (slow) support in oldIE. It will cause script errors on |
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151 | // charts with more than a few thousand points. |
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152 | // arguments[0].call(this); |
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153 | } |
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154 | }); |
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155 | } |
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156 | |||
157 | |||
158 | /** |
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159 | * Override a bunch of methods the same way. If the number of points is below the threshold, |
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160 | * run the original method. If not, check for a canvas version or do nothing. |
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161 | */ |
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162 | // each(['translate', 'generatePoints', 'drawTracker', 'drawPoints', 'render'], function (method) { |
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163 | // function branch(proceed) { |
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164 | // var letItPass = this.options.stacking && (method === 'translate' || method === 'generatePoints'); |
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165 | // if (((this.processedXData || this.options.data).length < (this.options.boostThreshold || Number.MAX_VALUE) || |
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166 | // letItPass) || !isChartSeriesBoosting(this.chart)) { |
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167 | |||
168 | // // Clear image |
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169 | // if (method === 'render' && this.image) { |
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170 | // this.image.attr({ href: '' }); |
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171 | // this.animate = null; // We're zooming in, don't run animation |
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172 | // } |
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173 | |||
174 | // proceed.call(this); |
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175 | |||
176 | // // If a canvas version of the method exists, like renderCanvas(), run |
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177 | // } else if (this[method + 'Canvas']) { |
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178 | |||
179 | // this[method + 'Canvas'](); |
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180 | // } |
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181 | // } |
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182 | // wrap(Series.prototype, method, branch); |
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183 | |||
184 | // // A special case for some types - its translate method is already wrapped |
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185 | // if (method === 'translate') { |
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186 | // each(['arearange', 'bubble', 'column'], function (type) { |
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187 | // if (seriesTypes[type]) { |
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188 | // wrap(seriesTypes[type].prototype, method, branch); |
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189 | // } |
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190 | // }); |
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191 | // } |
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192 | // }); |
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193 | |||
194 | H.extend(Series.prototype, { |
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195 | directTouch: false, |
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196 | pointRange: 0, |
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197 | allowDG: false, // No data grouping, let boost handle large data |
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198 | hasExtremes: function(checkX) { |
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199 | var options = this.options, |
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200 | data = options.data, |
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201 | xAxis = this.xAxis && this.xAxis.options, |
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202 | yAxis = this.yAxis && this.yAxis.options; |
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203 | return data.length > (options.boostThreshold || Number.MAX_VALUE) && isNumber(yAxis.min) && isNumber(yAxis.max) && |
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204 | (!checkX || (isNumber(xAxis.min) && isNumber(xAxis.max))); |
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205 | }, |
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206 | |||
207 | /** |
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208 | * If implemented in the core, parts of this can probably be shared with other similar |
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209 | * methods in Highcharts. |
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210 | */ |
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211 | destroyGraphics: function() { |
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212 | var series = this, |
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213 | points = this.points, |
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214 | point, |
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215 | i; |
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216 | |||
217 | if (points) { |
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218 | for (i = 0; i < points.length; i = i + 1) { |
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219 | point = points[i]; |
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220 | if (point && point.graphic) { |
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221 | point.graphic = point.graphic.destroy(); |
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222 | } |
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223 | } |
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224 | } |
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225 | |||
226 | each(['graph', 'area', 'tracker'], function(prop) { |
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227 | if (series[prop]) { |
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228 | series[prop] = series[prop].destroy(); |
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229 | } |
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230 | }); |
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231 | }, |
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232 | |||
233 | /** |
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234 | * Create a hidden canvas to draw the graph on. The contents is later copied over |
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235 | * to an SVG image element. |
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236 | */ |
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237 | getContext: function() { |
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238 | var chart = this.chart, |
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239 | width = chart.chartWidth, |
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240 | height = chart.chartHeight, |
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241 | targetGroup = this.group, |
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242 | target = this, |
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243 | ctx, |
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244 | swapXY = function(proceed, x, y, a, b, c, d) { |
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245 | proceed.call(this, y, x, a, b, c, d); |
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246 | }; |
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247 | |||
248 | if (isChartSeriesBoosting(chart)) { |
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249 | target = chart; |
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250 | targetGroup = chart.seriesGroup; |
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251 | } |
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252 | |||
253 | ctx = target.ctx; |
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254 | |||
255 | if (!target.canvas) { |
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256 | target.canvas = doc.createElement('canvas'); |
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257 | |||
258 | target.image = chart.renderer.image( |
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259 | '', |
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260 | 0, |
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261 | 0, |
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262 | width, |
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263 | height |
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264 | ).add(targetGroup); |
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265 | |||
266 | target.ctx = ctx = target.canvas.getContext('2d'); |
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267 | |||
268 | if (chart.inverted) { |
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269 | each(['moveTo', 'lineTo', 'rect', 'arc'], function(fn) { |
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270 | wrap(ctx, fn, swapXY); |
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271 | }); |
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272 | } |
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273 | |||
274 | target.boostClipRect = chart.renderer.clipRect( |
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275 | chart.plotLeft, |
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276 | chart.plotTop, |
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277 | chart.plotWidth, |
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278 | chart.chartHeight |
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279 | ); |
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280 | |||
281 | target.image.clip(target.boostClipRect); |
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282 | |||
283 | } else if (!(target instanceof H.Chart)) { |
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284 | //ctx.clearRect(0, 0, width, height); |
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285 | } |
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286 | |||
287 | if (target.canvas.width !== width) { |
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288 | target.canvas.width = width; |
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289 | } |
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290 | |||
291 | if (target.canvas.height !== height) { |
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292 | target.canvas.height = height; |
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293 | } |
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294 | |||
295 | target.image.attr({ |
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296 | x: 0, |
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297 | y: 0, |
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298 | width: width, |
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299 | height: height, |
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300 | style: 'pointer-events: none' |
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301 | }); |
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302 | |||
303 | target.boostClipRect.attr({ |
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304 | x: 0, |
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305 | y: 0, |
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306 | width: chart.plotWidth, |
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307 | height: chart.chartHeight |
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308 | }); |
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309 | |||
310 | return ctx; |
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311 | }, |
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312 | |||
313 | /** |
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314 | * Draw the canvas image inside an SVG image |
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315 | */ |
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316 | canvasToSVG: function() { |
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317 | if (!isChartSeriesBoosting(this.chart)) { |
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318 | this.image.attr({ |
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319 | href: this.canvas.toDataURL('image/png') |
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320 | }); |
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321 | } else if (this.image) { |
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322 | this.image.attr({ |
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323 | href: '' |
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324 | }); |
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325 | } |
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326 | }, |
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327 | |||
328 | cvsLineTo: function(ctx, clientX, plotY) { |
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329 | ctx.lineTo(clientX, plotY); |
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330 | }, |
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331 | |||
332 | renderCanvas: function() { |
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333 | var series = this, |
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334 | options = series.options, |
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335 | chart = series.chart, |
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336 | xAxis = this.xAxis, |
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337 | yAxis = this.yAxis, |
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338 | activeBoostSettings = chart.options.boost || {}, |
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339 | boostSettings = { |
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340 | timeRendering: activeBoostSettings.timeRendering || false, |
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341 | timeSeriesProcessing: activeBoostSettings.timeSeriesProcessing || false, |
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342 | timeSetup: activeBoostSettings.timeSetup || false |
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343 | }, |
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344 | ctx, |
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345 | c = 0, |
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346 | xData = series.processedXData, |
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347 | yData = series.processedYData, |
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348 | rawData = options.data, |
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349 | xExtremes = xAxis.getExtremes(), |
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350 | xMin = xExtremes.min, |
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351 | xMax = xExtremes.max, |
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352 | yExtremes = yAxis.getExtremes(), |
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353 | yMin = yExtremes.min, |
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354 | yMax = yExtremes.max, |
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355 | pointTaken = {}, |
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356 | lastClientX, |
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357 | sampling = !!series.sampling, |
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358 | points, |
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359 | r = options.marker && options.marker.radius, |
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360 | cvsDrawPoint = this.cvsDrawPoint, |
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361 | cvsLineTo = options.lineWidth ? this.cvsLineTo : false, |
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362 | cvsMarker = r && r <= 1 ? |
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363 | this.cvsMarkerSquare : |
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364 | this.cvsMarkerCircle, |
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365 | strokeBatch = this.cvsStrokeBatch || 1000, |
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366 | enableMouseTracking = options.enableMouseTracking !== false, |
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367 | lastPoint, |
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368 | threshold = options.threshold, |
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369 | yBottom = yAxis.getThreshold(threshold), |
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370 | hasThreshold = isNumber(threshold), |
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371 | translatedThreshold = yBottom, |
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372 | doFill = this.fill, |
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373 | isRange = series.pointArrayMap && series.pointArrayMap.join(',') === 'low,high', |
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374 | isStacked = !!options.stacking, |
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375 | cropStart = series.cropStart || 0, |
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376 | loadingOptions = chart.options.loading, |
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377 | requireSorting = series.requireSorting, |
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378 | wasNull, |
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379 | connectNulls = options.connectNulls, |
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380 | useRaw = !xData, |
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381 | minVal, |
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382 | maxVal, |
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383 | minI, |
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384 | maxI, |
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385 | kdIndex, |
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386 | sdata = isStacked ? series.data : (xData || rawData), |
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387 | fillColor = series.fillOpacity ? |
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388 | new Color(series.color).setOpacity(pick(options.fillOpacity, 0.75)).get() : |
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389 | series.color, |
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390 | |||
391 | stroke = function() { |
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392 | if (doFill) { |
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393 | ctx.fillStyle = fillColor; |
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394 | ctx.fill(); |
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395 | } else { |
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396 | ctx.strokeStyle = series.color; |
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397 | ctx.lineWidth = options.lineWidth; |
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398 | ctx.stroke(); |
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399 | } |
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400 | }, |
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401 | |||
402 | drawPoint = function(clientX, plotY, yBottom, i) { |
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403 | if (c === 0) { |
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404 | ctx.beginPath(); |
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405 | |||
406 | if (cvsLineTo) { |
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407 | ctx.lineJoin = 'round'; |
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408 | } |
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409 | } |
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410 | |||
411 | if (chart.scroller && series.options.className === 'highcharts-navigator-series') { |
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412 | plotY += chart.scroller.top; |
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413 | if (yBottom) { |
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414 | yBottom += chart.scroller.top; |
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415 | } |
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416 | } else { |
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417 | plotY += chart.plotTop; |
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418 | } |
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419 | |||
420 | clientX += chart.plotLeft; |
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421 | |||
422 | if (wasNull) { |
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423 | ctx.moveTo(clientX, plotY); |
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424 | } else { |
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425 | if (cvsDrawPoint) { |
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426 | cvsDrawPoint(ctx, clientX, plotY, yBottom, lastPoint); |
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427 | } else if (cvsLineTo) { |
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428 | cvsLineTo(ctx, clientX, plotY); |
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429 | } else if (cvsMarker) { |
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430 | cvsMarker.call(series, ctx, clientX, plotY, r, i); |
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431 | } |
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432 | } |
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433 | |||
434 | // We need to stroke the line for every 1000 pixels. It will crash the browser |
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435 | // memory use if we stroke too infrequently. |
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436 | c = c + 1; |
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437 | if (c === strokeBatch) { |
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438 | stroke(); |
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439 | c = 0; |
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440 | } |
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441 | |||
442 | // Area charts need to keep track of the last point |
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443 | lastPoint = { |
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444 | clientX: clientX, |
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445 | plotY: plotY, |
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446 | yBottom: yBottom |
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447 | }; |
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448 | }, |
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449 | |||
450 | addKDPoint = function(clientX, plotY, i) { |
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451 | // Avoid more string concatination than required |
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452 | kdIndex = clientX + ',' + plotY; |
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453 | |||
454 | // The k-d tree requires series points. Reduce the amount of points, since the time to build the |
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455 | // tree increases exponentially. |
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456 | if (enableMouseTracking && !pointTaken[kdIndex]) { |
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457 | pointTaken[kdIndex] = true; |
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458 | |||
459 | if (chart.inverted) { |
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460 | clientX = xAxis.len - clientX; |
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461 | plotY = yAxis.len - plotY; |
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462 | } |
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463 | |||
464 | points.push({ |
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465 | clientX: clientX, |
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466 | plotX: clientX, |
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467 | plotY: plotY, |
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468 | i: cropStart + i |
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469 | }); |
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470 | } |
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471 | }; |
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472 | |||
473 | // If we are zooming out from SVG mode, destroy the graphics |
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474 | if (this.points || this.graph) { |
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475 | this.destroyGraphics(); |
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476 | } |
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477 | |||
478 | // The group |
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479 | series.plotGroup( |
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480 | 'group', |
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481 | 'series', |
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482 | series.visible ? 'visible' : 'hidden', |
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483 | options.zIndex, |
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484 | chart.seriesGroup |
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485 | ); |
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486 | |||
487 | series.markerGroup = series.group; |
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488 | // addEvent(series, 'destroy', function () { |
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489 | // series.markerGroup = null; |
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490 | // }); |
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491 | |||
492 | points = this.points = []; |
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493 | ctx = this.getContext(); |
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494 | series.buildKDTree = noop; // Do not start building while drawing |
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495 | |||
496 | // Display a loading indicator |
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497 | if (rawData.length > 99999) { |
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498 | chart.options.loading = merge(loadingOptions, { |
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499 | labelStyle: { |
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500 | backgroundColor: H.color('#ffffff').setOpacity(0.75).get(), |
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501 | padding: '1em', |
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502 | borderRadius: '0.5em' |
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503 | }, |
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504 | style: { |
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505 | backgroundColor: 'none', |
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506 | opacity: 1 |
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507 | } |
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508 | }); |
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509 | clearTimeout(destroyLoadingDiv); |
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510 | chart.showLoading('Drawing...'); |
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511 | chart.options.loading = loadingOptions; // reset |
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512 | } |
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513 | |||
514 | if (boostSettings.timeRendering) { |
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515 | console.time('canvas rendering'); // eslint-disable-line no-console |
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516 | } |
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517 | |||
518 | // Loop over the points |
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519 | eachAsync(sdata, function(d, i) { |
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520 | var x, |
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521 | y, |
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522 | clientX, |
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523 | plotY, |
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524 | isNull, |
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525 | low, |
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526 | isNextInside = false, |
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527 | isPrevInside = false, |
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528 | nx = false, |
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529 | px = false, |
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530 | chartDestroyed = typeof chart.index === 'undefined', |
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531 | isYInside = true; |
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532 | |||
533 | if (!chartDestroyed) { |
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534 | if (useRaw) { |
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535 | x = d[0]; |
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536 | y = d[1]; |
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537 | |||
538 | if (sdata[i + 1]) { |
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539 | nx = sdata[i + 1][0]; |
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540 | } |
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541 | |||
542 | if (sdata[i - 1]) { |
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543 | px = sdata[i - 1][0]; |
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544 | } |
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545 | } else { |
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546 | x = d; |
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547 | y = yData[i]; |
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548 | |||
549 | if (sdata[i + 1]) { |
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550 | nx = sdata[i + 1]; |
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551 | } |
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552 | |||
553 | if (sdata[i - 1]) { |
||
554 | px = sdata[i - 1]; |
||
555 | } |
||
556 | } |
||
557 | |||
558 | if (nx && nx >= xMin && nx <= xMax) { |
||
559 | isNextInside = true; |
||
560 | } |
||
561 | |||
562 | if (px && px >= xMin && px <= xMax) { |
||
563 | isPrevInside = true; |
||
564 | } |
||
565 | |||
566 | // Resolve low and high for range series |
||
567 | if (isRange) { |
||
568 | if (useRaw) { |
||
569 | y = d.slice(1, 3); |
||
570 | } |
||
571 | low = y[0]; |
||
572 | y = y[1]; |
||
573 | } else if (isStacked) { |
||
574 | x = d.x; |
||
575 | y = d.stackY; |
||
576 | low = y - d.y; |
||
577 | } |
||
578 | |||
579 | isNull = y === null; |
||
580 | |||
581 | // Optimize for scatter zooming |
||
582 | if (!requireSorting) { |
||
583 | isYInside = y >= yMin && y <= yMax; |
||
584 | } |
||
585 | |||
586 | if (!isNull && |
||
587 | ( |
||
588 | (x >= xMin && x <= xMax && isYInside) || |
||
589 | (isNextInside || isPrevInside) |
||
590 | )) { |
||
591 | |||
592 | |||
593 | clientX = Math.round(xAxis.toPixels(x, true)); |
||
594 | |||
595 | if (sampling) { |
||
596 | if (minI === undefined || clientX === lastClientX) { |
||
597 | if (!isRange) { |
||
598 | low = y; |
||
599 | } |
||
600 | if (maxI === undefined || y > maxVal) { |
||
601 | maxVal = y; |
||
602 | maxI = i; |
||
603 | } |
||
604 | if (minI === undefined || low < minVal) { |
||
605 | minVal = low; |
||
606 | minI = i; |
||
607 | } |
||
608 | |||
609 | } |
||
610 | if (clientX !== lastClientX) { // Add points and reset |
||
611 | if (minI !== undefined) { // then maxI is also a number |
||
612 | plotY = yAxis.toPixels(maxVal, true); |
||
613 | yBottom = yAxis.toPixels(minVal, true); |
||
614 | drawPoint( |
||
615 | clientX, |
||
616 | hasThreshold ? Math.min(plotY, translatedThreshold) : plotY, |
||
617 | hasThreshold ? Math.max(yBottom, translatedThreshold) : yBottom, |
||
618 | i |
||
619 | ); |
||
620 | addKDPoint(clientX, plotY, maxI); |
||
621 | if (yBottom !== plotY) { |
||
622 | addKDPoint(clientX, yBottom, minI); |
||
623 | } |
||
624 | } |
||
625 | |||
626 | minI = maxI = undefined; |
||
627 | lastClientX = clientX; |
||
628 | } |
||
629 | } else { |
||
630 | plotY = Math.round(yAxis.toPixels(y, true)); |
||
631 | drawPoint(clientX, plotY, yBottom, i); |
||
632 | addKDPoint(clientX, plotY, i); |
||
633 | } |
||
634 | } |
||
635 | wasNull = isNull && !connectNulls; |
||
636 | |||
637 | if (i % CHUNK_SIZE === 0) { |
||
638 | series.canvasToSVG(); |
||
639 | } |
||
640 | } |
||
641 | |||
642 | return !chartDestroyed; |
||
643 | }, function() { |
||
644 | var loadingDiv = chart.loadingDiv, |
||
645 | loadingShown = chart.loadingShown; |
||
646 | stroke(); |
||
647 | series.canvasToSVG(); |
||
648 | |||
649 | if (boostSettings.timeRendering) { |
||
650 | console.timeEnd('canvas rendering'); // eslint-disable-line no-console |
||
651 | } |
||
652 | |||
653 | fireEvent(series, 'renderedCanvas'); |
||
654 | |||
655 | // Do not use chart.hideLoading, as it runs JS animation and will be blocked by buildKDTree. |
||
656 | // CSS animation looks good, but then it must be deleted in timeout. If we add the module to core, |
||
657 | // change hideLoading so we can skip this block. |
||
658 | if (loadingShown) { |
||
659 | extend(loadingDiv.style, { |
||
660 | transition: 'opacity 250ms', |
||
661 | opacity: 0 |
||
662 | }); |
||
663 | chart.loadingShown = false; |
||
664 | destroyLoadingDiv = setTimeout(function() { |
||
665 | if (loadingDiv.parentNode) { // In exporting it is falsy |
||
666 | loadingDiv.parentNode.removeChild(loadingDiv); |
||
667 | } |
||
668 | chart.loadingDiv = chart.loadingSpan = null; |
||
669 | }, 250); |
||
670 | } |
||
671 | |||
672 | // Pass tests in Pointer. |
||
673 | // Replace this with a single property, and replace when zooming in |
||
674 | // below boostThreshold. |
||
675 | series.directTouch = false; |
||
676 | series.options.stickyTracking = true; |
||
677 | |||
678 | delete series.buildKDTree; // Go back to prototype, ready to build |
||
679 | series.buildKDTree(); |
||
680 | |||
681 | // Don't do async on export, the exportChart, getSVGForExport and getSVG methods are not chained for it. |
||
682 | }, chart.renderer.forExport ? Number.MAX_VALUE : undefined); |
||
683 | } |
||
684 | }); |
||
685 | |||
686 | wrap(Series.prototype, 'setData', function(proceed) { |
||
687 | if (!this.hasExtremes || !this.hasExtremes(true) || this.type === 'heatmap') { |
||
688 | proceed.apply(this, Array.prototype.slice.call(arguments, 1)); |
||
689 | } |
||
690 | }); |
||
691 | |||
692 | wrap(Series.prototype, 'processData', function(proceed) { |
||
693 | if (!this.hasExtremes || !this.hasExtremes(true) || this.type === 'heatmap') { |
||
694 | proceed.apply(this, Array.prototype.slice.call(arguments, 1)); |
||
695 | } |
||
696 | }); |
||
697 | |||
698 | seriesTypes.scatter.prototype.cvsMarkerCircle = function(ctx, clientX, plotY, r) { |
||
699 | ctx.moveTo(clientX, plotY); |
||
700 | ctx.arc(clientX, plotY, r, 0, 2 * Math.PI, false); |
||
701 | }; |
||
702 | |||
703 | // Rect is twice as fast as arc, should be used for small markers |
||
704 | seriesTypes.scatter.prototype.cvsMarkerSquare = function(ctx, clientX, plotY, r) { |
||
705 | ctx.rect(clientX - r, plotY - r, r * 2, r * 2); |
||
706 | }; |
||
707 | seriesTypes.scatter.prototype.fill = true; |
||
708 | |||
709 | if (seriesTypes.bubble) { |
||
710 | seriesTypes.bubble.prototype.cvsMarkerCircle = function(ctx, clientX, plotY, r, i) { |
||
711 | ctx.moveTo(clientX, plotY); |
||
712 | ctx.arc(clientX, plotY, this.radii && this.radii[i], 0, 2 * Math.PI, false); |
||
713 | }; |
||
714 | seriesTypes.bubble.prototype.cvsStrokeBatch = 1; |
||
715 | } |
||
716 | |||
717 | extend(seriesTypes.area.prototype, { |
||
718 | cvsDrawPoint: function(ctx, clientX, plotY, yBottom, lastPoint) { |
||
719 | if (lastPoint && clientX !== lastPoint.clientX) { |
||
720 | ctx.moveTo(lastPoint.clientX, lastPoint.yBottom); |
||
721 | ctx.lineTo(lastPoint.clientX, lastPoint.plotY); |
||
722 | ctx.lineTo(clientX, plotY); |
||
723 | ctx.lineTo(clientX, yBottom); |
||
724 | } |
||
725 | }, |
||
726 | fill: true, |
||
727 | fillOpacity: true, |
||
728 | sampling: true |
||
729 | }); |
||
730 | |||
731 | extend(seriesTypes.column.prototype, { |
||
732 | cvsDrawPoint: function(ctx, clientX, plotY, yBottom) { |
||
733 | ctx.rect(clientX - 1, plotY, 1, yBottom - plotY); |
||
734 | }, |
||
735 | fill: true, |
||
736 | sampling: true |
||
737 | }); |
||
738 | |||
739 | H.Chart.prototype.callbacks.push(function(chart) { |
||
740 | function canvasToSVG() { |
||
741 | if (chart.image && chart.canvas) { |
||
742 | chart.image.attr({ |
||
743 | href: chart.canvas.toDataURL('image/png') |
||
744 | }); |
||
745 | } |
||
746 | } |
||
747 | |||
748 | function clear() { |
||
749 | if (chart.image) { |
||
750 | chart.image.attr({ |
||
751 | href: '' |
||
752 | }); |
||
753 | } |
||
754 | |||
755 | if (chart.canvas) { |
||
756 | chart.canvas.getContext('2d').clearRect( |
||
757 | 0, |
||
758 | 0, |
||
759 | chart.canvas.width, |
||
760 | chart.canvas.height |
||
761 | ); |
||
762 | } |
||
763 | } |
||
764 | |||
765 | addEvent(chart, 'predraw', clear); |
||
766 | addEvent(chart, 'render', canvasToSVG); |
||
767 | }); |
||
768 | }; |
||
769 | |||
770 | }(Highcharts)); |
||
771 | })); |