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904 lines
35 KiB
904 lines
35 KiB
/** |
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* jqPlot |
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* Pure JavaScript plotting plugin using jQuery |
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* |
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* Version: 1.0.8 |
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* Revision: 1250 |
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* |
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* Copyright (c) 2009-2013 Chris Leonello |
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* jqPlot is currently available for use in all personal or commercial projects |
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* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL |
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* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can |
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* choose the license that best suits your project and use it accordingly. |
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* |
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* Although not required, the author would appreciate an email letting him |
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* know of any substantial use of jqPlot. You can reach the author at: |
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* chris at jqplot dot com or see http://www.jqplot.com/info.php . |
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* |
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* If you are feeling kind and generous, consider supporting the project by |
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* making a donation at: http://www.jqplot.com/donate.php . |
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* |
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* sprintf functions contained in jqplot.sprintf.js by Ash Searle: |
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* |
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* version 2007.04.27 |
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* author Ash Searle |
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* http://hexmen.com/blog/2007/03/printf-sprintf/ |
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* http://hexmen.com/js/sprintf.js |
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* The author (Ash Searle) has placed this code in the public domain: |
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* "This code is unrestricted: you are free to use it however you like." |
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* |
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*/ |
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(function($) { |
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/** |
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* Class: $.jqplot.PieRenderer |
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* Plugin renderer to draw a pie chart. |
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* x values, if present, will be used as slice labels. |
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* y values give slice size. |
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* |
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* To use this renderer, you need to include the |
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* pie renderer plugin, for example: |
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* |
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* > <script type="text/javascript" src="plugins/jqplot.pieRenderer.js"></script> |
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* |
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* Properties described here are passed into the $.jqplot function |
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* as options on the series renderer. For example: |
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* |
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* > plot2 = $.jqplot('chart2', [s1, s2], { |
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* > seriesDefaults: { |
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* > renderer:$.jqplot.PieRenderer, |
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* > rendererOptions:{ |
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* > sliceMargin: 2, |
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* > startAngle: -90 |
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* > } |
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* > } |
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* > }); |
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* |
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* A pie plot will trigger events on the plot target |
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* according to user interaction. All events return the event object, |
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* the series index, the point (slice) index, and the point data for |
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* the appropriate slice. |
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* |
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* 'jqplotDataMouseOver' - triggered when user mouseing over a slice. |
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* 'jqplotDataHighlight' - triggered the first time user mouses over a slice, |
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* if highlighting is enabled. |
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* 'jqplotDataUnhighlight' - triggered when a user moves the mouse out of |
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* a highlighted slice. |
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* 'jqplotDataClick' - triggered when the user clicks on a slice. |
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* 'jqplotDataRightClick' - tiggered when the user right clicks on a slice if |
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* the "captureRightClick" option is set to true on the plot. |
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*/ |
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$.jqplot.PieRenderer = function(){ |
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$.jqplot.LineRenderer.call(this); |
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}; |
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|
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$.jqplot.PieRenderer.prototype = new $.jqplot.LineRenderer(); |
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$.jqplot.PieRenderer.prototype.constructor = $.jqplot.PieRenderer; |
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|
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// called with scope of a series |
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$.jqplot.PieRenderer.prototype.init = function(options, plot) { |
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// Group: Properties |
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// |
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// prop: diameter |
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// Outer diameter of the pie, auto computed by default |
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this.diameter = null; |
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// prop: padding |
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// padding between the pie and plot edges, legend, etc. |
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this.padding = 20; |
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// prop: sliceMargin |
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// angular spacing between pie slices in degrees. |
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this.sliceMargin = 0; |
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// prop: fill |
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// true or false, whether to fil the slices. |
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this.fill = true; |
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// prop: shadowOffset |
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// offset of the shadow from the slice and offset of |
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// each succesive stroke of the shadow from the last. |
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this.shadowOffset = 2; |
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// prop: shadowAlpha |
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// transparency of the shadow (0 = transparent, 1 = opaque) |
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this.shadowAlpha = 0.07; |
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// prop: shadowDepth |
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// number of strokes to apply to the shadow, |
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// each stroke offset shadowOffset from the last. |
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this.shadowDepth = 5; |
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// prop: highlightMouseOver |
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// True to highlight slice when moused over. |
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// This must be false to enable highlightMouseDown to highlight when clicking on a slice. |
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this.highlightMouseOver = true; |
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// prop: highlightMouseDown |
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// True to highlight when a mouse button is pressed over a slice. |
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// This will be disabled if highlightMouseOver is true. |
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this.highlightMouseDown = false; |
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// prop: highlightColors |
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// an array of colors to use when highlighting a slice. |
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this.highlightColors = []; |
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// prop: dataLabels |
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// Either 'label', 'value', 'percent' or an array of labels to place on the pie slices. |
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// Defaults to percentage of each pie slice. |
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this.dataLabels = 'percent'; |
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// prop: showDataLabels |
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// true to show data labels on slices. |
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this.showDataLabels = false; |
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// prop: dataLabelFormatString |
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// Format string for data labels. If none, '%s' is used for "label" and for arrays, '%d' for value and '%d%%' for percentage. |
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this.dataLabelFormatString = null; |
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// prop: dataLabelThreshold |
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// Threshhold in percentage (0-100) of pie area, below which no label will be displayed. |
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// This applies to all label types, not just to percentage labels. |
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this.dataLabelThreshold = 3; |
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// prop: dataLabelPositionFactor |
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// A Multiplier (0-1) of the pie radius which controls position of label on slice. |
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// Increasing will slide label toward edge of pie, decreasing will slide label toward center of pie. |
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this.dataLabelPositionFactor = 0.52; |
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// prop: dataLabelNudge |
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// Number of pixels to slide the label away from (+) or toward (-) the center of the pie. |
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this.dataLabelNudge = 2; |
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// prop: dataLabelCenterOn |
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// True to center the data label at its position. |
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// False to set the inside facing edge of the label at its position. |
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this.dataLabelCenterOn = true; |
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// prop: startAngle |
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// Angle to start drawing pie in degrees. |
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// According to orientation of canvas coordinate system: |
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// 0 = on the positive x axis |
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// -90 = on the positive y axis. |
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// 90 = on the negaive y axis. |
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// 180 or - 180 = on the negative x axis. |
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this.startAngle = 0; |
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this.tickRenderer = $.jqplot.PieTickRenderer; |
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// Used as check for conditions where pie shouldn't be drawn. |
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this._drawData = true; |
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this._type = 'pie'; |
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|
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// if user has passed in highlightMouseDown option and not set highlightMouseOver, disable highlightMouseOver |
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if (options.highlightMouseDown && options.highlightMouseOver == null) { |
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options.highlightMouseOver = false; |
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} |
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|
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$.extend(true, this, options); |
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|
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if (this.sliceMargin < 0) { |
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this.sliceMargin = 0; |
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} |
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this._diameter = null; |
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this._radius = null; |
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// array of [start,end] angles arrays, one for each slice. In radians. |
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this._sliceAngles = []; |
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// index of the currenty highlighted point, if any |
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this._highlightedPoint = null; |
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|
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// set highlight colors if none provided |
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if (this.highlightColors.length == 0) { |
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for (var i=0; i<this.seriesColors.length; i++){ |
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var rgba = $.jqplot.getColorComponents(this.seriesColors[i]); |
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var newrgb = [rgba[0], rgba[1], rgba[2]]; |
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var sum = newrgb[0] + newrgb[1] + newrgb[2]; |
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for (var j=0; j<3; j++) { |
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// when darkening, lowest color component can be is 60. |
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newrgb[j] = (sum > 570) ? newrgb[j] * 0.8 : newrgb[j] + 0.3 * (255 - newrgb[j]); |
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newrgb[j] = parseInt(newrgb[j], 10); |
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} |
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this.highlightColors.push('rgb('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+')'); |
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} |
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} |
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this.highlightColorGenerator = new $.jqplot.ColorGenerator(this.highlightColors); |
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|
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plot.postParseOptionsHooks.addOnce(postParseOptions); |
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plot.postInitHooks.addOnce(postInit); |
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plot.eventListenerHooks.addOnce('jqplotMouseMove', handleMove); |
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plot.eventListenerHooks.addOnce('jqplotMouseDown', handleMouseDown); |
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plot.eventListenerHooks.addOnce('jqplotMouseUp', handleMouseUp); |
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plot.eventListenerHooks.addOnce('jqplotClick', handleClick); |
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plot.eventListenerHooks.addOnce('jqplotRightClick', handleRightClick); |
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plot.postDrawHooks.addOnce(postPlotDraw); |
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}; |
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|
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$.jqplot.PieRenderer.prototype.setGridData = function(plot) { |
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// set gridData property. This will hold angle in radians of each data point. |
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var stack = []; |
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var td = []; |
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var sa = this.startAngle/180*Math.PI; |
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var tot = 0; |
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// don't know if we have any valid data yet, so set plot to not draw. |
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this._drawData = false; |
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for (var i=0; i<this.data.length; i++){ |
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if (this.data[i][1] != 0) { |
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// we have data, O.K. to draw. |
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this._drawData = true; |
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} |
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stack.push(this.data[i][1]); |
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td.push([this.data[i][0]]); |
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if (i>0) { |
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stack[i] += stack[i-1]; |
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} |
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tot += this.data[i][1]; |
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} |
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var fact = Math.PI*2/stack[stack.length - 1]; |
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|
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for (var i=0; i<stack.length; i++) { |
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td[i][1] = stack[i] * fact; |
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td[i][2] = this.data[i][1]/tot; |
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} |
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this.gridData = td; |
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}; |
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|
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$.jqplot.PieRenderer.prototype.makeGridData = function(data, plot) { |
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var stack = []; |
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var td = []; |
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var tot = 0; |
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var sa = this.startAngle/180*Math.PI; |
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// don't know if we have any valid data yet, so set plot to not draw. |
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this._drawData = false; |
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for (var i=0; i<data.length; i++){ |
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if (this.data[i][1] != 0) { |
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// we have data, O.K. to draw. |
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this._drawData = true; |
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} |
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stack.push(data[i][1]); |
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td.push([data[i][0]]); |
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if (i>0) { |
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stack[i] += stack[i-1]; |
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} |
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tot += data[i][1]; |
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} |
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var fact = Math.PI*2/stack[stack.length - 1]; |
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|
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for (var i=0; i<stack.length; i++) { |
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td[i][1] = stack[i] * fact; |
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td[i][2] = data[i][1]/tot; |
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} |
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return td; |
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}; |
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|
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function calcRadiusAdjustment(ang) { |
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return Math.sin((ang - (ang-Math.PI) / 8 / Math.PI )/2.0); |
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} |
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|
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function calcRPrime(ang1, ang2, sliceMargin, fill, lineWidth) { |
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var rprime = 0; |
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var ang = ang2 - ang1; |
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var absang = Math.abs(ang); |
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var sm = sliceMargin; |
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if (fill == false) { |
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sm += lineWidth; |
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} |
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|
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if (sm > 0 && absang > 0.01 && absang < 6.282) { |
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rprime = parseFloat(sm) / 2.0 / calcRadiusAdjustment(ang); |
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} |
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return rprime; |
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} |
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$.jqplot.PieRenderer.prototype.drawSlice = function (ctx, ang1, ang2, color, isShadow) { |
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if (this._drawData) { |
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var r = this._radius; |
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var fill = this.fill; |
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var lineWidth = this.lineWidth; |
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var sm = this.sliceMargin; |
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if (this.fill == false) { |
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sm += this.lineWidth; |
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} |
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ctx.save(); |
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ctx.translate(this._center[0], this._center[1]); |
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|
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var rprime = calcRPrime(ang1, ang2, this.sliceMargin, this.fill, this.lineWidth); |
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|
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var transx = rprime * Math.cos((ang1 + ang2) / 2.0); |
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var transy = rprime * Math.sin((ang1 + ang2) / 2.0); |
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|
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if ((ang2 - ang1) <= Math.PI) { |
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r -= rprime; |
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} |
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else { |
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r += rprime; |
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} |
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|
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ctx.translate(transx, transy); |
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|
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if (isShadow) { |
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for (var i=0, l=this.shadowDepth; i<l; i++) { |
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ctx.save(); |
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ctx.translate(this.shadowOffset*Math.cos(this.shadowAngle/180*Math.PI), this.shadowOffset*Math.sin(this.shadowAngle/180*Math.PI)); |
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doDraw(r); |
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} |
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for (var i=0, l=this.shadowDepth; i<l; i++) { |
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ctx.restore(); |
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} |
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} |
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|
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else { |
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doDraw(r); |
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} |
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ctx.restore(); |
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} |
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|
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function doDraw (rad) { |
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// Fix for IE and Chrome that can't seem to draw circles correctly. |
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// ang2 should always be <= 2 pi since that is the way the data is converted. |
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// 2Pi = 6.2831853, Pi = 3.1415927 |
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if (ang2 > 6.282 + this.startAngle) { |
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ang2 = 6.282 + this.startAngle; |
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if (ang1 > ang2) { |
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ang1 = 6.281 + this.startAngle; |
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} |
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} |
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// Fix for IE, where it can't seem to handle 0 degree angles. Also avoids |
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// ugly line on unfilled pies. |
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if (ang1 >= ang2) { |
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return; |
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} |
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|
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ctx.beginPath(); |
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ctx.fillStyle = color; |
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ctx.strokeStyle = color; |
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ctx.lineWidth = lineWidth; |
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ctx.arc(0, 0, rad, ang1, ang2, false); |
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ctx.lineTo(0,0); |
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ctx.closePath(); |
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|
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if (fill) { |
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ctx.fill(); |
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} |
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else { |
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ctx.stroke(); |
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} |
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} |
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}; |
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|
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// called with scope of series |
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$.jqplot.PieRenderer.prototype.draw = function (ctx, gd, options, plot) { |
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var i; |
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var opts = (options != undefined) ? options : {}; |
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// offset and direction of offset due to legend placement |
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var offx = 0; |
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var offy = 0; |
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var trans = 1; |
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var colorGenerator = new $.jqplot.ColorGenerator(this.seriesColors); |
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if (options.legendInfo && options.legendInfo.placement == 'insideGrid') { |
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var li = options.legendInfo; |
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switch (li.location) { |
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case 'nw': |
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offx = li.width + li.xoffset; |
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break; |
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case 'w': |
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offx = li.width + li.xoffset; |
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break; |
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case 'sw': |
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offx = li.width + li.xoffset; |
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break; |
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case 'ne': |
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offx = li.width + li.xoffset; |
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trans = -1; |
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break; |
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case 'e': |
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offx = li.width + li.xoffset; |
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trans = -1; |
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break; |
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case 'se': |
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offx = li.width + li.xoffset; |
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trans = -1; |
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break; |
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case 'n': |
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offy = li.height + li.yoffset; |
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break; |
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case 's': |
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offy = li.height + li.yoffset; |
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trans = -1; |
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break; |
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default: |
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break; |
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} |
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} |
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|
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var shadow = (opts.shadow != undefined) ? opts.shadow : this.shadow; |
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var fill = (opts.fill != undefined) ? opts.fill : this.fill; |
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var cw = ctx.canvas.width; |
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var ch = ctx.canvas.height; |
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var w = cw - offx - 2 * this.padding; |
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var h = ch - offy - 2 * this.padding; |
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var mindim = Math.min(w,h); |
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var d = mindim; |
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|
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// Fixes issue #272. Thanks hugwijst! |
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// reset slice angles array. |
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this._sliceAngles = []; |
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|
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var sm = this.sliceMargin; |
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if (this.fill == false) { |
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sm += this.lineWidth; |
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} |
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|
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var rprime; |
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var maxrprime = 0; |
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|
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var ang, ang1, ang2, shadowColor; |
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var sa = this.startAngle / 180 * Math.PI; |
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|
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// have to pre-draw shadows, so loop throgh here and calculate some values also. |
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for (var i=0, l=gd.length; i<l; i++) { |
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ang1 = (i == 0) ? sa : gd[i-1][1] + sa; |
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ang2 = gd[i][1] + sa; |
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|
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this._sliceAngles.push([ang1, ang2]); |
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|
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rprime = calcRPrime(ang1, ang2, this.sliceMargin, this.fill, this.lineWidth); |
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|
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if (Math.abs(ang2-ang1) > Math.PI) { |
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maxrprime = Math.max(rprime, maxrprime); |
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} |
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} |
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|
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if (this.diameter != null && this.diameter > 0) { |
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this._diameter = this.diameter - 2*maxrprime; |
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} |
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else { |
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this._diameter = d - 2*maxrprime; |
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} |
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|
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// Need to check for undersized pie. This can happen if |
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// plot area too small and legend is too big. |
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if (this._diameter < 6) { |
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$.jqplot.log('Diameter of pie too small, not rendering.'); |
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return; |
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} |
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|
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var r = this._radius = this._diameter/2; |
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|
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this._center = [(cw - trans * offx)/2 + trans * offx + maxrprime * Math.cos(sa), (ch - trans*offy)/2 + trans * offy + maxrprime * Math.sin(sa)]; |
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|
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if (this.shadow) { |
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for (var i=0, l=gd.length; i<l; i++) { |
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shadowColor = 'rgba(0,0,0,'+this.shadowAlpha+')'; |
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this.renderer.drawSlice.call (this, ctx, this._sliceAngles[i][0], this._sliceAngles[i][1], shadowColor, true); |
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} |
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} |
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|
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for (var i=0; i<gd.length; i++) { |
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|
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this.renderer.drawSlice.call (this, ctx, this._sliceAngles[i][0], this._sliceAngles[i][1], colorGenerator.next(), false); |
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|
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if (this.showDataLabels && gd[i][2]*100 >= this.dataLabelThreshold) { |
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var fstr, avgang = (this._sliceAngles[i][0] + this._sliceAngles[i][1])/2, label; |
|
|
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if (this.dataLabels == 'label') { |
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fstr = this.dataLabelFormatString || '%s'; |
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label = $.jqplot.sprintf(fstr, gd[i][0]); |
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} |
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else if (this.dataLabels == 'value') { |
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fstr = this.dataLabelFormatString || '%d'; |
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label = $.jqplot.sprintf(fstr, this.data[i][1]); |
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} |
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else if (this.dataLabels == 'percent') { |
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fstr = this.dataLabelFormatString || '%d%%'; |
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label = $.jqplot.sprintf(fstr, gd[i][2]*100); |
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} |
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else if (this.dataLabels.constructor == Array) { |
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fstr = this.dataLabelFormatString || '%s'; |
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label = $.jqplot.sprintf(fstr, this.dataLabels[i]); |
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} |
|
|
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var fact = (this._radius ) * this.dataLabelPositionFactor + this.sliceMargin + this.dataLabelNudge; |
|
|
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var x = this._center[0] + Math.cos(avgang) * fact + this.canvas._offsets.left; |
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var y = this._center[1] + Math.sin(avgang) * fact + this.canvas._offsets.top; |
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|
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var labelelem = $('<div class="jqplot-pie-series jqplot-data-label" style="position:absolute;">' + label + '</div>').insertBefore(plot.eventCanvas._elem); |
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if (this.dataLabelCenterOn) { |
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x -= labelelem.width()/2; |
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y -= labelelem.height()/2; |
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} |
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else { |
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x -= labelelem.width() * Math.sin(avgang/2); |
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y -= labelelem.height()/2; |
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} |
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x = Math.round(x); |
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y = Math.round(y); |
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labelelem.css({left: x, top: y}); |
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} |
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} |
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}; |
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|
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$.jqplot.PieAxisRenderer = function() { |
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$.jqplot.LinearAxisRenderer.call(this); |
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}; |
|
|
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$.jqplot.PieAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer(); |
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$.jqplot.PieAxisRenderer.prototype.constructor = $.jqplot.PieAxisRenderer; |
|
|
|
|
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// There are no traditional axes on a pie chart. We just need to provide |
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// dummy objects with properties so the plot will render. |
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// called with scope of axis object. |
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$.jqplot.PieAxisRenderer.prototype.init = function(options){ |
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// |
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this.tickRenderer = $.jqplot.PieTickRenderer; |
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$.extend(true, this, options); |
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// I don't think I'm going to need _dataBounds here. |
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// have to go Axis scaling in a way to fit chart onto plot area |
|
// and provide u2p and p2u functionality for mouse cursor, etc. |
|
// for convienence set _dataBounds to 0 and 100 and |
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// set min/max to 0 and 100. |
|
this._dataBounds = {min:0, max:100}; |
|
this.min = 0; |
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this.max = 100; |
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this.showTicks = false; |
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this.ticks = []; |
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this.showMark = false; |
|
this.show = false; |
|
}; |
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|
|
|
|
|
|
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$.jqplot.PieLegendRenderer = function(){ |
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$.jqplot.TableLegendRenderer.call(this); |
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}; |
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$.jqplot.PieLegendRenderer.prototype = new $.jqplot.TableLegendRenderer(); |
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$.jqplot.PieLegendRenderer.prototype.constructor = $.jqplot.PieLegendRenderer; |
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/** |
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* Class: $.jqplot.PieLegendRenderer |
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* Legend Renderer specific to pie plots. Set by default |
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* when user creates a pie plot. |
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*/ |
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$.jqplot.PieLegendRenderer.prototype.init = function(options) { |
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// Group: Properties |
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// |
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// prop: numberRows |
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// Maximum number of rows in the legend. 0 or null for unlimited. |
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this.numberRows = null; |
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// prop: numberColumns |
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// Maximum number of columns in the legend. 0 or null for unlimited. |
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this.numberColumns = null; |
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$.extend(true, this, options); |
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}; |
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// called with context of legend |
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$.jqplot.PieLegendRenderer.prototype.draw = function() { |
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var legend = this; |
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if (this.show) { |
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var series = this._series; |
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this._elem = $(document.createElement('table')); |
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this._elem.addClass('jqplot-table-legend'); |
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var ss = {position:'absolute'}; |
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if (this.background) { |
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ss['background'] = this.background; |
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} |
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if (this.border) { |
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ss['border'] = this.border; |
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} |
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if (this.fontSize) { |
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ss['fontSize'] = this.fontSize; |
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} |
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if (this.fontFamily) { |
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ss['fontFamily'] = this.fontFamily; |
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} |
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if (this.textColor) { |
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ss['textColor'] = this.textColor; |
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} |
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if (this.marginTop != null) { |
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ss['marginTop'] = this.marginTop; |
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} |
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if (this.marginBottom != null) { |
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ss['marginBottom'] = this.marginBottom; |
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} |
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if (this.marginLeft != null) { |
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ss['marginLeft'] = this.marginLeft; |
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} |
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if (this.marginRight != null) { |
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ss['marginRight'] = this.marginRight; |
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} |
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this._elem.css(ss); |
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// Pie charts legends don't go by number of series, but by number of data points |
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// in the series. Refactor things here for that. |
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var pad = false, |
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reverse = false, |
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nr, |
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nc; |
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var s = series[0]; |
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var colorGenerator = new $.jqplot.ColorGenerator(s.seriesColors); |
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if (s.show) { |
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var pd = s.data; |
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if (this.numberRows) { |
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nr = this.numberRows; |
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if (!this.numberColumns){ |
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nc = Math.ceil(pd.length/nr); |
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} |
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else{ |
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nc = this.numberColumns; |
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} |
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} |
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else if (this.numberColumns) { |
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nc = this.numberColumns; |
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nr = Math.ceil(pd.length/this.numberColumns); |
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} |
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else { |
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nr = pd.length; |
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nc = 1; |
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} |
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var i, j; |
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var tr, td1, td2; |
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var lt, rs, color; |
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var idx = 0; |
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var div0, div1; |
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for (i=0; i<nr; i++) { |
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tr = $(document.createElement('tr')); |
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tr.addClass('jqplot-table-legend'); |
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if (reverse){ |
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tr.prependTo(this._elem); |
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} |
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else{ |
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tr.appendTo(this._elem); |
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} |
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for (j=0; j<nc; j++) { |
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if (idx < pd.length){ |
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lt = this.labels[idx] || pd[idx][0].toString(); |
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color = colorGenerator.next(); |
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if (!reverse){ |
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if (i>0){ |
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pad = true; |
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} |
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else{ |
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pad = false; |
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} |
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} |
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else{ |
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if (i == nr -1){ |
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pad = false; |
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} |
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else{ |
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pad = true; |
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} |
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} |
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rs = (pad) ? this.rowSpacing : '0'; |
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td1 = $(document.createElement('td')); |
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td1.addClass('jqplot-table-legend jqplot-table-legend-swatch'); |
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td1.css({textAlign: 'center', paddingTop: rs}); |
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div0 = $(document.createElement('div')); |
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div0.addClass('jqplot-table-legend-swatch-outline'); |
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div1 = $(document.createElement('div')); |
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div1.addClass('jqplot-table-legend-swatch'); |
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div1.css({backgroundColor: color, borderColor: color}); |
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td1.append(div0.append(div1)); |
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td2 = $(document.createElement('td')); |
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td2.addClass('jqplot-table-legend jqplot-table-legend-label'); |
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td2.css('paddingTop', rs); |
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if (this.escapeHtml){ |
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td2.text(lt); |
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} |
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else { |
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td2.html(lt); |
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} |
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if (reverse) { |
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td2.prependTo(tr); |
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td1.prependTo(tr); |
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} |
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else { |
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td1.appendTo(tr); |
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td2.appendTo(tr); |
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} |
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pad = true; |
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} |
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idx++; |
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} |
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} |
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} |
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} |
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return this._elem; |
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}; |
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$.jqplot.PieRenderer.prototype.handleMove = function(ev, gridpos, datapos, neighbor, plot) { |
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if (neighbor) { |
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var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; |
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plot.target.trigger('jqplotDataMouseOver', ins); |
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if (plot.series[ins[0]].highlightMouseOver && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { |
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plot.target.trigger('jqplotDataHighlight', ins); |
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highlight (plot, ins[0], ins[1]); |
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} |
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} |
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else if (neighbor == null) { |
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unhighlight (plot); |
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} |
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}; |
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// this.eventCanvas._elem.bind($.jqplot.eventListenerHooks[i][0], {plot:this}, $.jqplot.eventListenerHooks[i][1]); |
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// setup default renderers for axes and legend so user doesn't have to |
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// called with scope of plot |
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function preInit(target, data, options) { |
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options = options || {}; |
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options.axesDefaults = options.axesDefaults || {}; |
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options.legend = options.legend || {}; |
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options.seriesDefaults = options.seriesDefaults || {}; |
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// only set these if there is a pie series |
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var setopts = false; |
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if (options.seriesDefaults.renderer == $.jqplot.PieRenderer) { |
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setopts = true; |
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} |
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else if (options.series) { |
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for (var i=0; i < options.series.length; i++) { |
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if (options.series[i].renderer == $.jqplot.PieRenderer) { |
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setopts = true; |
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} |
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} |
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} |
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if (setopts) { |
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options.axesDefaults.renderer = $.jqplot.PieAxisRenderer; |
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options.legend.renderer = $.jqplot.PieLegendRenderer; |
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options.legend.preDraw = true; |
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options.seriesDefaults.pointLabels = {show: false}; |
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} |
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} |
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function postInit(target, data, options) { |
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for (var i=0; i<this.series.length; i++) { |
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if (this.series[i].renderer.constructor == $.jqplot.PieRenderer) { |
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// don't allow mouseover and mousedown at same time. |
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if (this.series[i].highlightMouseOver) { |
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this.series[i].highlightMouseDown = false; |
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} |
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} |
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} |
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} |
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// called with scope of plot |
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function postParseOptions(options) { |
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for (var i=0; i<this.series.length; i++) { |
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this.series[i].seriesColors = this.seriesColors; |
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this.series[i].colorGenerator = $.jqplot.colorGenerator; |
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} |
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} |
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function highlight (plot, sidx, pidx) { |
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var s = plot.series[sidx]; |
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var canvas = plot.plugins.pieRenderer.highlightCanvas; |
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canvas._ctx.clearRect(0,0,canvas._ctx.canvas.width, canvas._ctx.canvas.height); |
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s._highlightedPoint = pidx; |
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plot.plugins.pieRenderer.highlightedSeriesIndex = sidx; |
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s.renderer.drawSlice.call(s, canvas._ctx, s._sliceAngles[pidx][0], s._sliceAngles[pidx][1], s.highlightColorGenerator.get(pidx), false); |
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} |
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function unhighlight (plot) { |
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var canvas = plot.plugins.pieRenderer.highlightCanvas; |
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canvas._ctx.clearRect(0,0, canvas._ctx.canvas.width, canvas._ctx.canvas.height); |
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for (var i=0; i<plot.series.length; i++) { |
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plot.series[i]._highlightedPoint = null; |
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} |
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plot.plugins.pieRenderer.highlightedSeriesIndex = null; |
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plot.target.trigger('jqplotDataUnhighlight'); |
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} |
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function handleMove(ev, gridpos, datapos, neighbor, plot) { |
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if (neighbor) { |
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var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; |
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var evt1 = jQuery.Event('jqplotDataMouseOver'); |
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evt1.pageX = ev.pageX; |
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evt1.pageY = ev.pageY; |
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plot.target.trigger(evt1, ins); |
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if (plot.series[ins[0]].highlightMouseOver && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { |
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var evt = jQuery.Event('jqplotDataHighlight'); |
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evt.which = ev.which; |
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evt.pageX = ev.pageX; |
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evt.pageY = ev.pageY; |
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plot.target.trigger(evt, ins); |
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highlight (plot, ins[0], ins[1]); |
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} |
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} |
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else if (neighbor == null) { |
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unhighlight (plot); |
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} |
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} |
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function handleMouseDown(ev, gridpos, datapos, neighbor, plot) { |
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if (neighbor) { |
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var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; |
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if (plot.series[ins[0]].highlightMouseDown && !(ins[0] == plot.plugins.pieRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) { |
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var evt = jQuery.Event('jqplotDataHighlight'); |
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evt.which = ev.which; |
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evt.pageX = ev.pageX; |
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evt.pageY = ev.pageY; |
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plot.target.trigger(evt, ins); |
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highlight (plot, ins[0], ins[1]); |
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} |
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} |
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else if (neighbor == null) { |
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unhighlight (plot); |
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} |
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} |
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function handleMouseUp(ev, gridpos, datapos, neighbor, plot) { |
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var idx = plot.plugins.pieRenderer.highlightedSeriesIndex; |
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if (idx != null && plot.series[idx].highlightMouseDown) { |
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unhighlight(plot); |
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} |
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} |
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function handleClick(ev, gridpos, datapos, neighbor, plot) { |
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if (neighbor) { |
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var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; |
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var evt = jQuery.Event('jqplotDataClick'); |
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evt.which = ev.which; |
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evt.pageX = ev.pageX; |
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evt.pageY = ev.pageY; |
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plot.target.trigger(evt, ins); |
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} |
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} |
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function handleRightClick(ev, gridpos, datapos, neighbor, plot) { |
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if (neighbor) { |
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var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data]; |
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var idx = plot.plugins.pieRenderer.highlightedSeriesIndex; |
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if (idx != null && plot.series[idx].highlightMouseDown) { |
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unhighlight(plot); |
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} |
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var evt = jQuery.Event('jqplotDataRightClick'); |
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evt.which = ev.which; |
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evt.pageX = ev.pageX; |
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evt.pageY = ev.pageY; |
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plot.target.trigger(evt, ins); |
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} |
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} |
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// called within context of plot |
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// create a canvas which we can draw on. |
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// insert it before the eventCanvas, so eventCanvas will still capture events. |
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function postPlotDraw() { |
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// Memory Leaks patch |
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if (this.plugins.pieRenderer && this.plugins.pieRenderer.highlightCanvas) { |
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this.plugins.pieRenderer.highlightCanvas.resetCanvas(); |
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this.plugins.pieRenderer.highlightCanvas = null; |
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} |
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this.plugins.pieRenderer = {highlightedSeriesIndex:null}; |
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this.plugins.pieRenderer.highlightCanvas = new $.jqplot.GenericCanvas(); |
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// do we have any data labels? if so, put highlight canvas before those |
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var labels = $(this.targetId+' .jqplot-data-label'); |
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if (labels.length) { |
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$(labels[0]).before(this.plugins.pieRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-pieRenderer-highlight-canvas', this._plotDimensions, this)); |
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} |
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// else put highlight canvas before event canvas. |
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else { |
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this.eventCanvas._elem.before(this.plugins.pieRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-pieRenderer-highlight-canvas', this._plotDimensions, this)); |
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} |
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var hctx = this.plugins.pieRenderer.highlightCanvas.setContext(); |
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this.eventCanvas._elem.bind('mouseleave', {plot:this}, function (ev) { unhighlight(ev.data.plot); }); |
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} |
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$.jqplot.preInitHooks.push(preInit); |
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$.jqplot.PieTickRenderer = function() { |
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$.jqplot.AxisTickRenderer.call(this); |
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}; |
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$.jqplot.PieTickRenderer.prototype = new $.jqplot.AxisTickRenderer(); |
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$.jqplot.PieTickRenderer.prototype.constructor = $.jqplot.PieTickRenderer; |
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})(jQuery); |
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