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800 lines
33 KiB
JavaScript
800 lines
33 KiB
JavaScript
/**
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* jqPlot
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* Pure JavaScript plotting plugin using jQuery
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*
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* Version: 1.0.0b2_r947
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*
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* Copyright (c) 2009-2011 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.DonutRenderer
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* Plugin renderer to draw a donut 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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* donut renderer plugin, for example:
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*
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* > <script type="text/javascript" src="plugins/jqplot.donutRenderer.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.DonutRenderer,
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* > rendererOptions:{
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* > sliceMargin: 2,
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* > innerDiameter: 110,
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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 donut 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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$.jqplot.DonutRenderer = function(){
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$.jqplot.LineRenderer.call(this);
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};
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$.jqplot.DonutRenderer.prototype = new $.jqplot.LineRenderer();
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$.jqplot.DonutRenderer.prototype.constructor = $.jqplot.DonutRenderer;
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// called with scope of a series
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$.jqplot.DonutRenderer.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 donut, auto computed by default
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this.diameter = null;
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// prop: innerDiameter
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// Inner diameter of the donut, auto calculated by default.
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// If specified will override thickness value.
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this.innerDiameter = null;
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// prop: thickness
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// thickness of the donut, auto computed by default
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// Overridden by if innerDiameter is specified.
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this.thickness = null;
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// prop: padding
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// padding between the donut 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 donut slices in degrees.
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this.sliceMargin = 0;
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// prop: ringMargin
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// pixel distance between rings, or multiple series in a donut plot.
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// null will compute ringMargin based on sliceMargin.
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this.ringMargin = null;
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// prop: fill
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// true or false, wether 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 = 0.4;
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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 = 0;
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// prop: startAngle
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// Angle to start drawing donut 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 = $.jqplot.DonutTickRenderer;
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// Used as check for conditions where donut shouldn't be drawn.
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this._drawData = true;
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this._type = 'donut';
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// if user has passed in highlightMouseDown option and not set highlightMouseOver, disable highlightMouseOver
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if (options.highlightMouseDown && options.highlightMouseOver == null) {
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options.highlightMouseOver = false;
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}
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$.extend(true, this, options);
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if (this.diameter != null) {
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this.diameter = this.diameter - this.sliceMargin;
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}
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this._diameter = null;
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this._innerDiameter = null;
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this._radius = null;
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this._innerRadius = null;
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this._thickness = null;
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// references to the previous series in the plot to properly calculate diameters
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// and thicknesses of nested rings.
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this._previousSeries = [];
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this._numberSeries = 1;
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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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// 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 = $.jqplot.getColorComponents(this.seriesColors[i]);
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var newrgb = [rgba[0], rgba[1], rgba[2]];
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var sum = newrgb[0] + newrgb[1] + newrgb[2];
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for (var j=0; j<3; j++) {
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// when darkening, lowest color component can be is 60.
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newrgb[j] = (sum > 570) ? newrgb[j] * 0.8 : newrgb[j] + 0.3 * (255 - newrgb[j]);
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newrgb[j] = parseInt(newrgb[j], 10);
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}
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this.highlightColors.push('rgb('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+')');
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}
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}
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plot.postParseOptionsHooks.addOnce(postParseOptions);
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plot.postInitHooks.addOnce(postInit);
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plot.eventListenerHooks.addOnce('jqplotMouseMove', handleMove);
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plot.eventListenerHooks.addOnce('jqplotMouseDown', handleMouseDown);
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plot.eventListenerHooks.addOnce('jqplotMouseUp', handleMouseUp);
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plot.eventListenerHooks.addOnce('jqplotClick', handleClick);
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plot.eventListenerHooks.addOnce('jqplotRightClick', handleRightClick);
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plot.postDrawHooks.addOnce(postPlotDraw);
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};
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$.jqplot.DonutRenderer.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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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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$.jqplot.DonutRenderer.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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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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$.jqplot.DonutRenderer.prototype.drawSlice = function (ctx, ang1, ang2, color, isShadow) {
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var r = this._diameter / 2;
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var ri = r - this._thickness;
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var fill = this.fill;
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// var lineWidth = this.lineWidth;
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ctx.save();
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ctx.translate(this._center[0], this._center[1]);
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// ctx.translate(this.sliceMargin*Math.cos((ang1+ang2)/2), this.sliceMargin*Math.sin((ang1+ang2)/2));
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if (isShadow) {
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for (var i=0; i<this.shadowDepth; 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();
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}
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}
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else {
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doDraw();
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}
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function doDraw () {
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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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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 donuts.
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if (ang1 >= ang2) {
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return;
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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, r, ang1, ang2, false);
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ctx.lineTo(ri*Math.cos(ang2), ri*Math.sin(ang2));
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ctx.arc(0,0, ri, ang2, ang1, true);
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ctx.closePath();
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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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if (isShadow) {
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for (var i=0; i<this.shadowDepth; i++) {
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ctx.restore();
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}
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}
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ctx.restore();
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};
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// called with scope of series
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$.jqplot.DonutRenderer.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 this.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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var shadow = (opts.shadow != undefined) ? opts.shadow : this.shadow;
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var showLine = (opts.showLine != undefined) ? opts.showLine : this.showLine;
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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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var ringmargin = (this.ringMargin == null) ? this.sliceMargin * 2.0 : this.ringMargin;
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for (var i=0; i<this._previousSeries.length; i++) {
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d -= 2.0 * this._previousSeries[i]._thickness + 2.0 * ringmargin;
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}
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this._diameter = this.diameter || d;
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if (this.innerDiameter != null) {
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var od = (this._numberSeries > 1 && this.index > 0) ? this._previousSeries[0]._diameter : this._diameter;
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this._thickness = this.thickness || (od - this.innerDiameter - 2.0*ringmargin*this._numberSeries) / this._numberSeries/2.0;
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}
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else {
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this._thickness = this.thickness || mindim / 2 / (this._numberSeries + 1) * 0.85;
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}
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var r = this._radius = this._diameter/2;
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this._innerRadius = this._radius - this._thickness;
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var sa = this.startAngle / 180 * Math.PI;
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this._center = [(cw - trans * offx)/2 + trans * offx, (ch - trans*offy)/2 + trans * offy];
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if (this.shadow) {
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var shadowColor = 'rgba(0,0,0,'+this.shadowAlpha+')';
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for (var i=0; i<gd.length; i++) {
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var ang1 = (i == 0) ? sa : gd[i-1][1] + sa;
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// Adjust ang1 and ang2 for sliceMargin
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ang1 += this.sliceMargin/180*Math.PI;
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this.renderer.drawSlice.call (this, ctx, ang1, gd[i][1]+sa, shadowColor, true);
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}
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}
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for (var i=0; i<gd.length; i++) {
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var ang1 = (i == 0) ? sa : gd[i-1][1] + sa;
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// Adjust ang1 and ang2 for sliceMargin
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ang1 += this.sliceMargin/180*Math.PI;
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var ang2 = gd[i][1] + sa;
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this._sliceAngles.push([ang1, ang2]);
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this.renderer.drawSlice.call (this, ctx, ang1, ang2, this.seriesColors[i], false);
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if (this.showDataLabels && gd[i][2]*100 >= this.dataLabelThreshold) {
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var fstr, avgang = (ang1+ang2)/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._innerRadius + this._thickness * 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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var labelelem = $('<span class="jqplot-donut-series jqplot-data-label" style="position:absolute;">' + label + '</span>').insertBefore(plot.eventCanvas._elem);
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x -= labelelem.width()/2;
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y -= labelelem.height()/2;
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x = Math.round(x);
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y = Math.round(y);
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labelelem.css({left: x, top: y});
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}
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}
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};
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$.jqplot.DonutAxisRenderer = function() {
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$.jqplot.LinearAxisRenderer.call(this);
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};
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$.jqplot.DonutAxisRenderer.prototype = new $.jqplot.LinearAxisRenderer();
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$.jqplot.DonutAxisRenderer.prototype.constructor = $.jqplot.DonutAxisRenderer;
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// There are no traditional axes on a donut chart. We just need to provide
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// dummy objects with properties so the plot will render.
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// called with scope of axis object.
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$.jqplot.DonutAxisRenderer.prototype.init = function(options){
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//
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this.tickRenderer = $.jqplot.DonutTickRenderer;
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$.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
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// and provide u2p and p2u functionality for mouse cursor, etc.
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// for convienence set _dataBounds to 0 and 100 and
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// set min/max to 0 and 100.
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this._dataBounds = {min:0, max:100};
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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;
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this.show = false;
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};
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$.jqplot.DonutLegendRenderer = function(){
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$.jqplot.TableLegendRenderer.call(this);
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};
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$.jqplot.DonutLegendRenderer.prototype = new $.jqplot.TableLegendRenderer();
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$.jqplot.DonutLegendRenderer.prototype.constructor = $.jqplot.DonutLegendRenderer;
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/**
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* Class: $.jqplot.DonutLegendRenderer
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* Legend Renderer specific to donut plots. Set by default
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* when user creates a donut plot.
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*/
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$.jqplot.DonutLegendRenderer.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.DonutLegendRenderer.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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var ss = 'position:absolute;';
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ss += (this.background) ? 'background:'+this.background+';' : '';
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ss += (this.border) ? 'border:'+this.border+';' : '';
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ss += (this.fontSize) ? 'font-size:'+this.fontSize+';' : '';
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ss += (this.fontFamily) ? 'font-family:'+this.fontFamily+';' : '';
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ss += (this.textColor) ? 'color:'+this.textColor+';' : '';
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ss += (this.marginTop != null) ? 'margin-top:'+this.marginTop+';' : '';
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ss += (this.marginBottom != null) ? 'margin-bottom:'+this.marginBottom+';' : '';
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ss += (this.marginLeft != null) ? 'margin-left:'+this.marginLeft+';' : '';
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ss += (this.marginRight != null) ? 'margin-right:'+this.marginRight+';' : '';
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this._elem = $('<table class="jqplot-table-legend" style="'+ss+'"></table>');
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// Donut 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, 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, tr, td1, td2, lt, rs, color;
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var idx = 0;
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for (i=0; i<nr; i++) {
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if (reverse){
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tr = $('<tr class="jqplot-table-legend"></tr>').prependTo(this._elem);
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}
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else{
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tr = $('<tr class="jqplot-table-legend"></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 = $('<td class="jqplot-table-legend" style="text-align:center;padding-top:'+rs+';">'+
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'<div><div class="jqplot-table-legend-swatch" style="border-color:'+color+';"></div>'+
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'</div></td>');
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td2 = $('<td class="jqplot-table-legend" style="padding-top:'+rs+';"></td>');
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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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// 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 donut series
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var setopts = false;
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if (options.seriesDefaults.renderer == $.jqplot.DonutRenderer) {
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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.DonutRenderer) {
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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.DonutAxisRenderer;
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options.legend.renderer = $.jqplot.DonutLegendRenderer;
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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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// called with scope of plot.
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function postInit(target, data, options) {
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// if multiple series, add a reference to the previous one so that
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// donut rings can nest.
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for (var i=1; i<this.series.length; i++) {
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if (!this.series[i]._previousSeries.length){
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for (var j=0; j<i; j++) {
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if (this.series[i].renderer.constructor == $.jqplot.DonutRenderer && this.series[j].renderer.constructor == $.jqplot.DonutRenderer) {
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this.series[i]._previousSeries.push(this.series[j]);
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}
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}
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}
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}
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for (i=0; i<this.series.length; i++) {
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if (this.series[i].renderer.constructor == $.jqplot.DonutRenderer) {
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this.series[i]._numberSeries = this.series.length;
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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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var postParseOptionsRun = false;
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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.donutRenderer.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.donutRenderer.highlightedSeriesIndex = sidx;
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s.renderer.drawSlice.call(s, canvas._ctx, s._sliceAngles[pidx][0], s._sliceAngles[pidx][1], s.highlightColors[pidx], false);
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}
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function unhighlight (plot) {
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var canvas = plot.plugins.donutRenderer.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.donutRenderer.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.donutRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) {
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var evt = jQuery.Event('jqplotDataHighlight');
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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.donutRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) {
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var evt = jQuery.Event('jqplotDataHighlight');
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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.donutRenderer.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.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.donutRenderer.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.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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|
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// called within context of plot
|
|
// create a canvas which we can draw on.
|
|
// insert it before the eventCanvas, so eventCanvas will still capture events.
|
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function postPlotDraw() {
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// Memory Leaks patch
|
|
if (this.plugins.donutRenderer && this.plugins.donutRenderer.highlightCanvas) {
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|
this.plugins.donutRenderer.highlightCanvas.resetCanvas();
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|
this.plugins.donutRenderer.highlightCanvas = null;
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}
|
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|
|
this.plugins.donutRenderer = {highlightedSeriesIndex:null};
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|
this.plugins.donutRenderer.highlightCanvas = new $.jqplot.GenericCanvas();
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// do we have any data labels? if so, put highlight canvas before those
|
|
// Fix for broken jquery :first selector with canvas (VML) elements.
|
|
var labels = $(this.targetId+' .jqplot-data-label');
|
|
if (labels.length) {
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|
$(labels[0]).before(this.plugins.donutRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-donutRenderer-highlight-canvas', this._plotDimensions, this));
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}
|
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// else put highlight canvas before event canvas.
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|
else {
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|
this.eventCanvas._elem.before(this.plugins.donutRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-donutRenderer-highlight-canvas', this._plotDimensions, this));
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}
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|
var hctx = this.plugins.donutRenderer.highlightCanvas.setContext();
|
|
this.eventCanvas._elem.bind('mouseleave', {plot:this}, function (ev) { unhighlight(ev.data.plot); });
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}
|
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|
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$.jqplot.preInitHooks.push(preInit);
|
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|
|
$.jqplot.DonutTickRenderer = function() {
|
|
$.jqplot.AxisTickRenderer.call(this);
|
|
};
|
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|
|
$.jqplot.DonutTickRenderer.prototype = new $.jqplot.AxisTickRenderer();
|
|
$.jqplot.DonutTickRenderer.prototype.constructor = $.jqplot.DonutTickRenderer;
|
|
|
|
})(jQuery);
|
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|
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