709 lines
30 KiB
JavaScript
709 lines
30 KiB
JavaScript
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/**
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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_r792
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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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// Class: $.jqplot.BarRenderer
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// A plugin renderer for jqPlot to draw a bar plot.
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// Draws series as a line.
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$.jqplot.BarRenderer = function(){
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$.jqplot.LineRenderer.call(this);
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};
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$.jqplot.BarRenderer.prototype = new $.jqplot.LineRenderer();
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$.jqplot.BarRenderer.prototype.constructor = $.jqplot.BarRenderer;
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// called with scope of series.
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$.jqplot.BarRenderer.prototype.init = function(options, plot) {
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// Group: Properties
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//
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// prop: barPadding
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// Number of pixels between adjacent bars at the same axis value.
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this.barPadding = 8;
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// prop: barMargin
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// Number of pixels between groups of bars at adjacent axis values.
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this.barMargin = 10;
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// prop: barDirection
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// 'vertical' = up and down bars, 'horizontal' = side to side bars
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this.barDirection = 'vertical';
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// prop: barWidth
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// Width of the bar in pixels (auto by devaul). null = calculated automatically.
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this.barWidth = null;
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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: 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: shadowAlpha
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// transparency of the shadow (0 = transparent, 1 = opaque)
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this.shadowAlpha = 0.08;
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// prop: waterfall
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// true to enable waterfall plot.
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this.waterfall = false;
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// prop: groups
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// group bars into this many groups
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this.groups = 1;
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// prop: varyBarColor
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// true to color each bar of a series separately rather than
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// have every bar of a given series the same color.
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// If used for non-stacked multiple series bar plots, user should
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// specify a separate 'seriesColors' array for each series.
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// Otherwise, each series will set their bars to the same color array.
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// This option has no Effect for stacked bar charts and is disabled.
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this.varyBarColor = false;
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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 bar.
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this.highlightColors = [];
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this._type = 'bar';
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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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// fill is still needed to properly draw the legend.
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// bars have to be filled.
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this.fill = true;
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if (this.waterfall) {
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this.fillToZero = false;
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this.disableStack = true;
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}
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if (this.barDirection == 'vertical' ) {
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this._primaryAxis = '_xaxis';
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this._stackAxis = 'y';
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this.fillAxis = 'y';
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}
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else {
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this._primaryAxis = '_yaxis';
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this._stackAxis = 'x';
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this.fillAxis = 'x';
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}
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// index of the currenty highlighted point, if any
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this._highlightedPoint = null;
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// total number of values for all bar series, total number of bar series, and position of this series
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this._plotSeriesInfo = null;
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// Array of actual data colors used for each data point.
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this._dataColors = [];
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this._barPoints = [];
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// set the shape renderer options
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var opts = {lineJoin:'miter', lineCap:'round', fill:true, isarc:false, strokeStyle:this.color, fillStyle:this.color, closePath:this.fill};
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this.renderer.shapeRenderer.init(opts);
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// set the shadow renderer options
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var sopts = {lineJoin:'miter', lineCap:'round', fill:true, isarc:false, angle:this.shadowAngle, offset:this.shadowOffset, alpha:this.shadowAlpha, depth:this.shadowDepth, closePath:this.fill};
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this.renderer.shadowRenderer.init(sopts);
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plot.postInitHooks.addOnce(postInit);
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plot.postDrawHooks.addOnce(postPlotDraw);
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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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};
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// called with scope of series
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function barPreInit(target, data, seriesDefaults, options) {
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if (this.rendererOptions.barDirection == 'horizontal') {
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this._stackAxis = 'x';
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this._primaryAxis = '_yaxis';
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}
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if (this.rendererOptions.waterfall == true) {
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this._data = $.extend(true, [], this.data);
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var sum = 0;
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var pos = (!this.rendererOptions.barDirection || this.rendererOptions.barDirection == 'vertical') ? 1 : 0;
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for(var i=0; i<this.data.length; i++) {
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sum += this.data[i][pos];
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if (i>0) {
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this.data[i][pos] += this.data[i-1][pos];
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}
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}
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this.data[this.data.length] = (pos == 1) ? [this.data.length+1, sum] : [sum, this.data.length+1];
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this._data[this._data.length] = (pos == 1) ? [this._data.length+1, sum] : [sum, this._data.length+1];
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}
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if (this.rendererOptions.groups > 1) {
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this.breakOnNull = true;
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var l = this.data.length;
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var skip = parseInt(l/this.rendererOptions.groups, 10);
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var count = 0;
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for (var i=skip; i<l; i+=skip) {
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this.data.splice(i+count, 0, [null, null]);
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count++;
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}
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for (i=0; i<this.data.length; i++) {
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if (this._primaryAxis == '_xaxis') {
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this.data[i][0] = i+1;
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}
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else {
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this.data[i][1] = i+1;
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}
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}
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}
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}
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$.jqplot.preSeriesInitHooks.push(barPreInit);
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// needs to be called with scope of series, not renderer.
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$.jqplot.BarRenderer.prototype.calcSeriesNumbers = function() {
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var nvals = 0;
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var nseries = 0;
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var paxis = this[this._primaryAxis];
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var s, series, pos;
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// loop through all series on this axis
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for (var i=0; i < paxis._series.length; i++) {
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series = paxis._series[i];
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if (series === this) {
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pos = i;
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}
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// is the series rendered as a bar?
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if (series.renderer.constructor == $.jqplot.BarRenderer) {
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// gridData may not be computed yet, use data length insted
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nvals += series.data.length;
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nseries += 1;
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}
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}
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// return total number of values for all bar series, total number of bar series, and position of this series
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return [nvals, nseries, pos];
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};
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$.jqplot.BarRenderer.prototype.setBarWidth = function() {
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// need to know how many data values we have on the approprate axis and figure it out.
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var i;
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var nvals = 0;
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var nseries = 0;
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var paxis = this[this._primaryAxis];
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var s, series, pos;
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var temp = this._plotSeriesInfo = this.renderer.calcSeriesNumbers.call(this);
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nvals = temp[0];
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nseries = temp[1];
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var nticks = paxis.numberTicks;
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var nbins = (nticks-1)/2;
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// so, now we have total number of axis values.
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if (paxis.name == 'xaxis' || paxis.name == 'x2axis') {
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if (this._stack) {
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this.barWidth = (paxis._offsets.max - paxis._offsets.min) / nvals * nseries - this.barMargin;
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}
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else {
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this.barWidth = ((paxis._offsets.max - paxis._offsets.min)/nbins - this.barPadding * (nseries-1) - this.barMargin*2)/nseries;
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// this.barWidth = (paxis._offsets.max - paxis._offsets.min) / nvals - this.barPadding - this.barMargin/nseries;
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}
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}
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else {
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if (this._stack) {
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this.barWidth = (paxis._offsets.min - paxis._offsets.max) / nvals * nseries - this.barMargin;
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}
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else {
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this.barWidth = ((paxis._offsets.min - paxis._offsets.max)/nbins - this.barPadding * (nseries-1) - this.barMargin*2)/nseries;
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// this.barWidth = (paxis._offsets.min - paxis._offsets.max) / nvals - this.barPadding - this.barMargin/nseries;
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}
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}
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return [nvals, nseries];
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};
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function computeHighlightColors (colors) {
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var ret = [];
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for (var i=0; i<colors.length; i++){
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var rgba = $.jqplot.getColorComponents(colors[i]);
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var newrgb = [rgba[0], rgba[1], rgba[2]];
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var sum = newrgb[0] + newrgb[1] + newrgb[2];
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for (var j=0; j<3; j++) {
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// when darkening, lowest color component can be is 60.
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newrgb[j] = (sum > 570) ? newrgb[j] * 0.8 : newrgb[j] + 0.3 * (255 - newrgb[j]);
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newrgb[j] = parseInt(newrgb[j], 10);
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}
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ret.push('rgb('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+')');
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}
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return ret;
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}
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$.jqplot.BarRenderer.prototype.draw = function(ctx, gridData, options) {
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var i;
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// Ughhh, have to make a copy of options b/c it may be modified later.
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var opts = $.extend({}, options);
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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 xaxis = this.xaxis;
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var yaxis = this.yaxis;
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var xp = this._xaxis.series_u2p;
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var yp = this._yaxis.series_u2p;
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var pointx, pointy;
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// clear out data colors.
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this._dataColors = [];
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this._barPoints = [];
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if (this.barWidth == null) {
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this.renderer.setBarWidth.call(this);
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}
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var temp = this._plotSeriesInfo = this.renderer.calcSeriesNumbers.call(this);
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var nvals = temp[0];
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var nseries = temp[1];
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var pos = temp[2];
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var points = [];
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if (this._stack) {
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this._barNudge = 0;
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}
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else {
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this._barNudge = (-Math.abs(nseries/2 - 0.5) + pos) * (this.barWidth + this.barPadding);
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}
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if (showLine) {
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var negativeColors = new $.jqplot.ColorGenerator(this.negativeSeriesColors);
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var positiveColors = new $.jqplot.ColorGenerator(this.seriesColors);
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var negativeColor = negativeColors.get(this.index);
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if (! this.useNegativeColors) {
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negativeColor = opts.fillStyle;
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}
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var positiveColor = opts.fillStyle;
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var base;
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var xstart;
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var ystart;
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if (this.barDirection == 'vertical') {
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for (var i=0; i<gridData.length; i++) {
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if (this.data[i][1] == null) {
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continue;
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}
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points = [];
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base = gridData[i][0] + this._barNudge;
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ystart;
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// stacked
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if (this._stack && this._prevGridData.length) {
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ystart = this._prevGridData[i][1];
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}
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// not stacked and first series in stack
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else {
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if (this.fillToZero) {
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ystart = this._yaxis.series_u2p(0);
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}
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else if (this.waterfall && i > 0 && i < this.gridData.length-1) {
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ystart = this.gridData[i-1][1];
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}
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else if (this.waterfall && i == 0 && i < this.gridData.length-1) {
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if (this._yaxis.min <= 0 && this._yaxis.max >= 0) {
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ystart = this._yaxis.series_u2p(0);
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}
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else if (this._yaxis.min > 0) {
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ystart = ctx.canvas.height;
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}
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else {
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ystart = 0;
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}
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}
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else if (this.waterfall && i == this.gridData.length - 1) {
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if (this._yaxis.min <= 0 && this._yaxis.max >= 0) {
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ystart = this._yaxis.series_u2p(0);
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}
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else if (this._yaxis.min > 0) {
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ystart = ctx.canvas.height;
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|
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}
|
||
|
|
else {
|
||
|
|
ystart = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
ystart = ctx.canvas.height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((this.fillToZero && this._plotData[i][1] < 0) || (this.waterfall && this._data[i][1] < 0)) {
|
||
|
|
if (this.varyBarColor && !this._stack) {
|
||
|
|
if (this.useNegativeColors) {
|
||
|
|
opts.fillStyle = negativeColors.next();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
opts.fillStyle = positiveColors.next();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
opts.fillStyle = negativeColor;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (this.varyBarColor && !this._stack) {
|
||
|
|
opts.fillStyle = positiveColors.next();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
opts.fillStyle = positiveColor;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!this.fillToZero || this._plotData[i][1] >= 0) {
|
||
|
|
points.push([base-this.barWidth/2, ystart]);
|
||
|
|
points.push([base-this.barWidth/2, gridData[i][1]]);
|
||
|
|
points.push([base+this.barWidth/2, gridData[i][1]]);
|
||
|
|
points.push([base+this.barWidth/2, ystart]);
|
||
|
|
}
|
||
|
|
// for negative bars make sure points are always ordered clockwise
|
||
|
|
else {
|
||
|
|
points.push([base-this.barWidth/2, gridData[i][1]]);
|
||
|
|
points.push([base-this.barWidth/2, ystart]);
|
||
|
|
points.push([base+this.barWidth/2, ystart]);
|
||
|
|
points.push([base+this.barWidth/2, gridData[i][1]]);
|
||
|
|
}
|
||
|
|
this._barPoints.push(points);
|
||
|
|
// now draw the shadows if not stacked.
|
||
|
|
// for stacked plots, they are predrawn by drawShadow
|
||
|
|
if (shadow && !this._stack) {
|
||
|
|
var sopts = $.extend(true, {}, opts);
|
||
|
|
// need to get rid of fillStyle on shadow.
|
||
|
|
delete sopts.fillStyle;
|
||
|
|
this.renderer.shadowRenderer.draw(ctx, points, sopts);
|
||
|
|
}
|
||
|
|
var clr = opts.fillStyle || this.color;
|
||
|
|
this._dataColors.push(clr);
|
||
|
|
this.renderer.shapeRenderer.draw(ctx, points, opts);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
else if (this.barDirection == 'horizontal'){
|
||
|
|
for (var i=0; i<gridData.length; i++) {
|
||
|
|
if (this.data[i][0] == null) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
points = [];
|
||
|
|
base = gridData[i][1] - this._barNudge;
|
||
|
|
xstart;
|
||
|
|
|
||
|
|
if (this._stack && this._prevGridData.length) {
|
||
|
|
xstart = this._prevGridData[i][0];
|
||
|
|
}
|
||
|
|
// not stacked and first series in stack
|
||
|
|
else {
|
||
|
|
if (this.fillToZero) {
|
||
|
|
xstart = this._xaxis.series_u2p(0);
|
||
|
|
}
|
||
|
|
else if (this.waterfall && i > 0 && i < this.gridData.length-1) {
|
||
|
|
xstart = this.gridData[i-1][1];
|
||
|
|
}
|
||
|
|
else if (this.waterfall && i == 0 && i < this.gridData.length-1) {
|
||
|
|
if (this._xaxis.min <= 0 && this._xaxis.max >= 0) {
|
||
|
|
xstart = this._xaxis.series_u2p(0);
|
||
|
|
}
|
||
|
|
else if (this._xaxis.min > 0) {
|
||
|
|
xstart = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
xstart = ctx.canvas.width;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (this.waterfall && i == this.gridData.length - 1) {
|
||
|
|
if (this._xaxis.min <= 0 && this._xaxis.max >= 0) {
|
||
|
|
xstart = this._xaxis.series_u2p(0);
|
||
|
|
}
|
||
|
|
else if (this._xaxis.min > 0) {
|
||
|
|
xstart = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
xstart = ctx.canvas.width;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
xstart = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((this.fillToZero && this._plotData[i][1] < 0) || (this.waterfall && this._data[i][1] < 0)) {
|
||
|
|
if (this.varyBarColor && !this._stack) {
|
||
|
|
if (this.useNegativeColors) {
|
||
|
|
opts.fillStyle = negativeColors.next();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
opts.fillStyle = positiveColors.next();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (this.varyBarColor && !this._stack) {
|
||
|
|
opts.fillStyle = positiveColors.next();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
opts.fillStyle = positiveColor;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
points.push([xstart, base+this.barWidth/2]);
|
||
|
|
points.push([xstart, base-this.barWidth/2]);
|
||
|
|
points.push([gridData[i][0], base-this.barWidth/2]);
|
||
|
|
points.push([gridData[i][0], base+this.barWidth/2]);
|
||
|
|
this._barPoints.push(points);
|
||
|
|
// now draw the shadows if not stacked.
|
||
|
|
// for stacked plots, they are predrawn by drawShadow
|
||
|
|
if (shadow && !this._stack) {
|
||
|
|
var sopts = $.extend(true, {}, opts);
|
||
|
|
delete sopts.fillStyle;
|
||
|
|
this.renderer.shadowRenderer.draw(ctx, points, sopts);
|
||
|
|
}
|
||
|
|
var clr = opts.fillStyle || this.color;
|
||
|
|
this._dataColors.push(clr);
|
||
|
|
this.renderer.shapeRenderer.draw(ctx, points, opts);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.highlightColors.length == 0) {
|
||
|
|
this.highlightColors = computeHighlightColors(this._dataColors);
|
||
|
|
}
|
||
|
|
|
||
|
|
else if (typeof(this.highlightColors) == 'string') {
|
||
|
|
var temp = this.highlightColors;
|
||
|
|
this.highlightColors = [];
|
||
|
|
for (var i=0; i<this._dataColors.length; i++) {
|
||
|
|
this.highlightColors.push(temp);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// for stacked plots, shadows will be pre drawn by drawShadow.
|
||
|
|
$.jqplot.BarRenderer.prototype.drawShadow = function(ctx, gridData, options) {
|
||
|
|
var i;
|
||
|
|
var opts = (options != undefined) ? options : {};
|
||
|
|
var shadow = (opts.shadow != undefined) ? opts.shadow : this.shadow;
|
||
|
|
var showLine = (opts.showLine != undefined) ? opts.showLine : this.showLine;
|
||
|
|
var fill = (opts.fill != undefined) ? opts.fill : this.fill;
|
||
|
|
var xaxis = this.xaxis;
|
||
|
|
var yaxis = this.yaxis;
|
||
|
|
var xp = this._xaxis.series_u2p;
|
||
|
|
var yp = this._yaxis.series_u2p;
|
||
|
|
var pointx, points, pointy, nvals, nseries, pos;
|
||
|
|
|
||
|
|
if (this._stack && this.shadow) {
|
||
|
|
if (this.barWidth == null) {
|
||
|
|
this.renderer.setBarWidth.call(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
var temp = this._plotSeriesInfo = this.renderer.calcSeriesNumbers.call(this);
|
||
|
|
nvals = temp[0];
|
||
|
|
nseries = temp[1];
|
||
|
|
pos = temp[2];
|
||
|
|
|
||
|
|
if (this._stack) {
|
||
|
|
this._barNudge = 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this._barNudge = (-Math.abs(nseries/2 - 0.5) + pos) * (this.barWidth + this.barPadding);
|
||
|
|
}
|
||
|
|
if (showLine) {
|
||
|
|
|
||
|
|
if (this.barDirection == 'vertical') {
|
||
|
|
for (var i=0; i<gridData.length; i++) {
|
||
|
|
if (this.data[i][1] == null) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
points = [];
|
||
|
|
var base = gridData[i][0] + this._barNudge;
|
||
|
|
var ystart;
|
||
|
|
|
||
|
|
if (this._stack && this._prevGridData.length) {
|
||
|
|
ystart = this._prevGridData[i][1];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (this.fillToZero) {
|
||
|
|
ystart = this._yaxis.series_u2p(0);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
ystart = ctx.canvas.height;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
points.push([base-this.barWidth/2, ystart]);
|
||
|
|
points.push([base-this.barWidth/2, gridData[i][1]]);
|
||
|
|
points.push([base+this.barWidth/2, gridData[i][1]]);
|
||
|
|
points.push([base+this.barWidth/2, ystart]);
|
||
|
|
this.renderer.shadowRenderer.draw(ctx, points, opts);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
else if (this.barDirection == 'horizontal'){
|
||
|
|
for (var i=0; i<gridData.length; i++) {
|
||
|
|
if (this.data[i][0] == null) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
points = [];
|
||
|
|
var base = gridData[i][1] - this._barNudge;
|
||
|
|
var xstart;
|
||
|
|
|
||
|
|
if (this._stack && this._prevGridData.length) {
|
||
|
|
xstart = this._prevGridData[i][0];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
xstart = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
points.push([xstart, base+this.barWidth/2]);
|
||
|
|
points.push([gridData[i][0], base+this.barWidth/2]);
|
||
|
|
points.push([gridData[i][0], base-this.barWidth/2]);
|
||
|
|
points.push([xstart, base-this.barWidth/2]);
|
||
|
|
this.renderer.shadowRenderer.draw(ctx, points, opts);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function postInit(target, data, options) {
|
||
|
|
for (var i=0; i<this.series.length; i++) {
|
||
|
|
if (this.series[i].renderer.constructor == $.jqplot.BarRenderer) {
|
||
|
|
// don't allow mouseover and mousedown at same time.
|
||
|
|
if (this.series[i].highlightMouseOver) {
|
||
|
|
this.series[i].highlightMouseDown = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.target.bind('mouseout', {plot:this}, function (ev) { unhighlight(ev.data.plot); });
|
||
|
|
}
|
||
|
|
|
||
|
|
// called within context of plot
|
||
|
|
// create a canvas which we can draw on.
|
||
|
|
// insert it before the eventCanvas, so eventCanvas will still capture events.
|
||
|
|
function postPlotDraw() {
|
||
|
|
// Memory Leaks patch
|
||
|
|
if (this.plugins.barRenderer && this.plugins.barRenderer.highlightCanvas) {
|
||
|
|
|
||
|
|
this.plugins.barRenderer.highlightCanvas.resetCanvas();
|
||
|
|
this.plugins.barRenderer.highlightCanvas = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.plugins.barRenderer = {highlightedSeriesIndex:null};
|
||
|
|
this.plugins.barRenderer.highlightCanvas = new $.jqplot.GenericCanvas();
|
||
|
|
|
||
|
|
this.eventCanvas._elem.before(this.plugins.barRenderer.highlightCanvas.createElement(this._gridPadding, 'jqplot-barRenderer-highlight-canvas', this._plotDimensions, this));
|
||
|
|
this.plugins.barRenderer.highlightCanvas.setContext();
|
||
|
|
}
|
||
|
|
|
||
|
|
function highlight (plot, sidx, pidx, points) {
|
||
|
|
var s = plot.series[sidx];
|
||
|
|
var canvas = plot.plugins.barRenderer.highlightCanvas;
|
||
|
|
canvas._ctx.clearRect(0,0,canvas._ctx.canvas.width, canvas._ctx.canvas.height);
|
||
|
|
s._highlightedPoint = pidx;
|
||
|
|
plot.plugins.barRenderer.highlightedSeriesIndex = sidx;
|
||
|
|
var opts = {fillStyle: s.highlightColors[pidx]};
|
||
|
|
s.renderer.shapeRenderer.draw(canvas._ctx, points, opts);
|
||
|
|
canvas = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
function unhighlight (plot) {
|
||
|
|
var canvas = plot.plugins.barRenderer.highlightCanvas;
|
||
|
|
canvas._ctx.clearRect(0,0, canvas._ctx.canvas.width, canvas._ctx.canvas.height);
|
||
|
|
for (var i=0; i<plot.series.length; i++) {
|
||
|
|
plot.series[i]._highlightedPoint = null;
|
||
|
|
}
|
||
|
|
plot.plugins.barRenderer.highlightedSeriesIndex = null;
|
||
|
|
plot.target.trigger('jqplotDataUnhighlight');
|
||
|
|
canvas = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function handleMove(ev, gridpos, datapos, neighbor, plot) {
|
||
|
|
if (neighbor) {
|
||
|
|
var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data];
|
||
|
|
var evt1 = jQuery.Event('jqplotDataMouseOver');
|
||
|
|
evt1.pageX = ev.pageX;
|
||
|
|
evt1.pageY = ev.pageY;
|
||
|
|
plot.target.trigger(evt1, ins);
|
||
|
|
if (plot.series[ins[0]].highlightMouseOver && !(ins[0] == plot.plugins.barRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) {
|
||
|
|
var evt = jQuery.Event('jqplotDataHighlight');
|
||
|
|
evt.pageX = ev.pageX;
|
||
|
|
evt.pageY = ev.pageY;
|
||
|
|
plot.target.trigger(evt, ins);
|
||
|
|
highlight (plot, neighbor.seriesIndex, neighbor.pointIndex, neighbor.points);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (neighbor == null) {
|
||
|
|
unhighlight (plot);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function handleMouseDown(ev, gridpos, datapos, neighbor, plot) {
|
||
|
|
if (neighbor) {
|
||
|
|
var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data];
|
||
|
|
if (plot.series[ins[0]].highlightMouseDown && !(ins[0] == plot.plugins.barRenderer.highlightedSeriesIndex && ins[1] == plot.series[ins[0]]._highlightedPoint)) {
|
||
|
|
var evt = jQuery.Event('jqplotDataHighlight');
|
||
|
|
evt.pageX = ev.pageX;
|
||
|
|
evt.pageY = ev.pageY;
|
||
|
|
plot.target.trigger(evt, ins);
|
||
|
|
highlight (plot, neighbor.seriesIndex, neighbor.pointIndex, neighbor.points);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (neighbor == null) {
|
||
|
|
unhighlight (plot);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function handleMouseUp(ev, gridpos, datapos, neighbor, plot) {
|
||
|
|
var idx = plot.plugins.barRenderer.highlightedSeriesIndex;
|
||
|
|
if (idx != null && plot.series[idx].highlightMouseDown) {
|
||
|
|
unhighlight(plot);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function handleClick(ev, gridpos, datapos, neighbor, plot) {
|
||
|
|
if (neighbor) {
|
||
|
|
var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data];
|
||
|
|
var evt = jQuery.Event('jqplotDataClick');
|
||
|
|
evt.pageX = ev.pageX;
|
||
|
|
evt.pageY = ev.pageY;
|
||
|
|
plot.target.trigger(evt, ins);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function handleRightClick(ev, gridpos, datapos, neighbor, plot) {
|
||
|
|
if (neighbor) {
|
||
|
|
var ins = [neighbor.seriesIndex, neighbor.pointIndex, neighbor.data];
|
||
|
|
var idx = plot.plugins.barRenderer.highlightedSeriesIndex;
|
||
|
|
if (idx != null && plot.series[idx].highlightMouseDown) {
|
||
|
|
unhighlight(plot);
|
||
|
|
}
|
||
|
|
var evt = jQuery.Event('jqplotDataRightClick');
|
||
|
|
evt.pageX = ev.pageX;
|
||
|
|
evt.pageY = ev.pageY;
|
||
|
|
plot.target.trigger(evt, ins);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
})(jQuery);
|