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611 lines
25 KiB
611 lines
25 KiB
/** |
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* jqPlot |
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* Pure JavaScript plotting plugin using jQuery |
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* |
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* Version: 1.0.8 |
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* Revision: 1250 |
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* |
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* Copyright (c) 2009-2013 Chris Leonello |
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* jqPlot is currently available for use in all personal or commercial projects |
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* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL |
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* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can |
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* choose the license that best suits your project and use it accordingly. |
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* |
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* Although not required, the author would appreciate an email letting him |
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* know of any substantial use of jqPlot. You can reach the author at: |
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* chris at jqplot dot com or see http://www.jqplot.com/info.php . |
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* |
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* If you are feeling kind and generous, consider supporting the project by |
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* making a donation at: http://www.jqplot.com/donate.php . |
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* |
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* sprintf functions contained in jqplot.sprintf.js by Ash Searle: |
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* |
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* version 2007.04.27 |
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* author Ash Searle |
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* http://hexmen.com/blog/2007/03/printf-sprintf/ |
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* http://hexmen.com/js/sprintf.js |
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* The author (Ash Searle) has placed this code in the public domain: |
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* "This code is unrestricted: you are free to use it however you like." |
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* |
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*/ |
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(function($) { |
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// class: $.jqplot.MekkoAxisRenderer |
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// An axis renderer for a Mekko chart. |
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// Should be used with a Mekko chart where the mekkoRenderer is used on the series. |
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// Displays the Y axis as a range from 0 to 1 (0 to 100%) and the x axis with a tick |
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// for each series scaled to the sum of all the y values. |
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$.jqplot.MekkoAxisRenderer = function() { |
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}; |
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|
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// called with scope of axis object. |
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$.jqplot.MekkoAxisRenderer.prototype.init = function(options){ |
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// prop: tickMode |
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// How to space the ticks on the axis. |
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// 'bar' will place a tick at the width of each bar. |
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// This is the default for the x axis. |
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// 'even' will place ticks at even intervals. This is |
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// the default for x2 axis and y axis. y axis cannot be changed. |
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this.tickMode; |
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// prop: barLabelRenderer |
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// renderer to use to draw labels under each bar. |
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this.barLabelRenderer = $.jqplot.AxisLabelRenderer; |
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// prop: barLabels |
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// array of labels to put under each bar. |
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this.barLabels = this.barLabels || []; |
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// prop: barLabelOptions |
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// options object to pass to the bar label renderer. |
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this.barLabelOptions = {}; |
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this.tickOptions = $.extend(true, {showGridline:false}, this.tickOptions); |
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this._barLabels = []; |
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$.extend(true, this, options); |
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if (this.name == 'yaxis') { |
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this.tickOptions.formatString = this.tickOptions.formatString || "%d\%"; |
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} |
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var db = this._dataBounds; |
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db.min = 0; |
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// for y axes, scale always go from 0 to 1 (0 to 100%) |
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if (this.name == 'yaxis' || this.name == 'y2axis') { |
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db.max = 100; |
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this.tickMode = 'even'; |
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} |
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// For x axes, scale goes from 0 to sum of all y values. |
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else if (this.name == 'xaxis'){ |
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this.tickMode = (this.tickMode == null) ? 'bar' : this.tickMode; |
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for (var i=0; i<this._series.length; i++) { |
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db.max += this._series[i]._sumy; |
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} |
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} |
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else if (this.name == 'x2axis'){ |
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this.tickMode = (this.tickMode == null) ? 'even' : this.tickMode; |
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for (var i=0; i<this._series.length; i++) { |
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db.max += this._series[i]._sumy; |
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} |
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} |
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}; |
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|
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// called with scope of axis |
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$.jqplot.MekkoAxisRenderer.prototype.draw = function(ctx, plot) { |
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if (this.show) { |
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// populate the axis label and value properties. |
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// createTicks is a method on the renderer, but |
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// call it within the scope of the axis. |
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this.renderer.createTicks.call(this); |
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// fill a div with axes labels in the right direction. |
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// Need to pregenerate each axis to get its bounds and |
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// position it and the labels correctly on the plot. |
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var dim=0; |
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var temp; |
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|
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var elem = document.createElement('div'); |
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this._elem = $(elem); |
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this._elem.addClass('jqplot-axis jqplot-'+this.name); |
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this._elem.css('position', 'absolute'); |
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elem = null; |
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|
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if (this.name == 'xaxis' || this.name == 'x2axis') { |
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this._elem.width(this._plotDimensions.width); |
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} |
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else { |
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this._elem.height(this._plotDimensions.height); |
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} |
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|
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// draw the axis label |
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// create a _label object. |
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this.labelOptions.axis = this.name; |
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this._label = new this.labelRenderer(this.labelOptions); |
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if (this._label.show) { |
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this._elem.append(this._label.draw(ctx)); |
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} |
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|
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var t, tick, elem; |
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if (this.showTicks) { |
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t = this._ticks; |
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for (var i=0; i<t.length; i++) { |
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tick = t[i]; |
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if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) { |
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this._elem.append(tick.draw(ctx)); |
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} |
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} |
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} |
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// draw the series labels |
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for (i=0; i<this.barLabels.length; i++) { |
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this.barLabelOptions.axis = this.name; |
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this.barLabelOptions.label = this.barLabels[i]; |
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this._barLabels.push(new this.barLabelRenderer(this.barLabelOptions)); |
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if (this.tickMode != 'bar') { |
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this._barLabels[i].show = false; |
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} |
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if (this._barLabels[i].show) { |
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var elem = this._barLabels[i].draw(ctx, plot); |
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elem.removeClass('jqplot-'+this.name+'-label'); |
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elem.addClass('jqplot-'+this.name+'-tick'); |
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elem.addClass('jqplot-mekko-barLabel'); |
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elem.appendTo(this._elem); |
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elem = null; |
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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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// called with scope of an axis |
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$.jqplot.MekkoAxisRenderer.prototype.reset = function() { |
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this.min = this._min; |
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this.max = this._max; |
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this.tickInterval = this._tickInterval; |
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this.numberTicks = this._numberTicks; |
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// this._ticks = this.__ticks; |
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}; |
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// called with scope of axis |
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$.jqplot.MekkoAxisRenderer.prototype.set = function() { |
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var dim = 0; |
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var temp; |
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var w = 0; |
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var h = 0; |
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var lshow = (this._label == null) ? false : this._label.show; |
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if (this.show && this.showTicks) { |
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var t = this._ticks; |
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for (var i=0; i<t.length; i++) { |
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var tick = t[i]; |
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if (tick.showLabel && (!tick.isMinorTick || this.showMinorTicks)) { |
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if (this.name == 'xaxis' || this.name == 'x2axis') { |
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temp = tick._elem.outerHeight(true); |
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} |
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else { |
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temp = tick._elem.outerWidth(true); |
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} |
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if (temp > dim) { |
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dim = temp; |
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} |
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} |
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} |
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if (lshow) { |
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w = this._label._elem.outerWidth(true); |
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h = this._label._elem.outerHeight(true); |
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} |
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if (this.name == 'xaxis') { |
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dim = dim + h; |
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this._elem.css({'height':dim+'px', left:'0px', bottom:'0px'}); |
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} |
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else if (this.name == 'x2axis') { |
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dim = dim + h; |
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this._elem.css({'height':dim+'px', left:'0px', top:'0px'}); |
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} |
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else if (this.name == 'yaxis') { |
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dim = dim + w; |
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this._elem.css({'width':dim+'px', left:'0px', top:'0px'}); |
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if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) { |
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this._label._elem.css('width', w+'px'); |
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} |
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} |
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else { |
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dim = dim + w; |
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this._elem.css({'width':dim+'px', right:'0px', top:'0px'}); |
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if (lshow && this._label.constructor == $.jqplot.AxisLabelRenderer) { |
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this._label._elem.css('width', w+'px'); |
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} |
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} |
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} |
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}; |
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// called with scope of axis |
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$.jqplot.MekkoAxisRenderer.prototype.createTicks = function() { |
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// we're are operating on an axis here |
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var ticks = this._ticks; |
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var userTicks = this.ticks; |
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var name = this.name; |
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// databounds were set on axis initialization. |
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var db = this._dataBounds; |
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var dim, interval; |
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var min, max; |
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var pos1, pos2; |
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var t, tt, i, j; |
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|
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// if we already have ticks, use them. |
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// ticks must be in order of increasing value. |
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|
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if (userTicks.length) { |
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// ticks could be 1D or 2D array of [val, val, ,,,] or [[val, label], [val, label], ...] or mixed |
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for (i=0; i<userTicks.length; i++){ |
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var ut = userTicks[i]; |
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var t = new this.tickRenderer(this.tickOptions); |
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if (ut.constructor == Array) { |
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t.value = ut[0]; |
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t.label = ut[1]; |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(ut[0], this.name); |
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this._ticks.push(t); |
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} |
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else { |
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t.value = ut; |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(ut, this.name); |
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this._ticks.push(t); |
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} |
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} |
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this.numberTicks = userTicks.length; |
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this.min = this._ticks[0].value; |
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this.max = this._ticks[this.numberTicks-1].value; |
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this.tickInterval = (this.max - this.min) / (this.numberTicks - 1); |
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} |
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|
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// we don't have any ticks yet, let's make some! |
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else { |
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if (name == 'xaxis' || name == 'x2axis') { |
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dim = this._plotDimensions.width; |
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} |
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else { |
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dim = this._plotDimensions.height; |
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} |
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|
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// if min, max and number of ticks specified, user can't specify interval. |
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if (this.min != null && this.max != null && this.numberTicks != null) { |
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this.tickInterval = null; |
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} |
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min = (this.min != null) ? this.min : db.min; |
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max = (this.max != null) ? this.max : db.max; |
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|
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// if min and max are same, space them out a bit.+ |
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if (min == max) { |
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var adj = 0.05; |
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if (min > 0) { |
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adj = Math.max(Math.log(min)/Math.LN10, 0.05); |
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} |
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min -= adj; |
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max += adj; |
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} |
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var range = max - min; |
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var rmin, rmax; |
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var temp, prev, curr; |
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var ynumticks = [3,5,6,11,21]; |
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|
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// yaxis divide ticks in nice intervals from 0 to 1. |
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if (this.name == 'yaxis' || this.name == 'y2axis') { |
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this.min = 0; |
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this.max = 100; |
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// user didn't specify number of ticks. |
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if (!this.numberTicks){ |
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if (this.tickInterval) { |
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this.numberTicks = 3 + Math.ceil(range / this.tickInterval); |
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} |
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else { |
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temp = 2 + Math.ceil((dim-(this.tickSpacing-1))/this.tickSpacing); |
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for (i=0; i<ynumticks.length; i++) { |
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curr = temp/ynumticks[i]; |
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if (curr == 1) { |
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this.numberTicks = ynumticks[i]; |
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break; |
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} |
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else if (curr > 1) { |
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prev = curr; |
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continue; |
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} |
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else if (curr < 1) { |
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// was prev or is curr closer to one? |
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if (Math.abs(prev - 1) < Math.abs(curr - 1)) { |
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this.numberTicks = ynumticks[i-1]; |
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break; |
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} |
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else { |
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this.numberTicks = ynumticks[i]; |
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break; |
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} |
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} |
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else if (i == ynumticks.length -1) { |
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this.numberTicks = ynumticks[i]; |
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} |
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} |
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this.tickInterval = range / (this.numberTicks - 1); |
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} |
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} |
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|
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// user did specify number of ticks. |
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else { |
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this.tickInterval = range / (this.numberTicks - 1); |
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} |
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for (var i=0; i<this.numberTicks; i++){ |
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tt = this.min + i * this.tickInterval; |
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t = new this.tickRenderer(this.tickOptions); |
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// var t = new $.jqplot.AxisTickRenderer(this.tickOptions); |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(tt, this.name); |
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this._ticks.push(t); |
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} |
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} |
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|
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// for x axes, have number ot ticks equal to number of series and ticks placed |
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// at sum of y values for each series. |
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else if (this.tickMode == 'bar') { |
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this.min = 0; |
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this.numberTicks = this._series.length + 1; |
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t = new this.tickRenderer(this.tickOptions); |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(0, this.name); |
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this._ticks.push(t); |
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temp = 0; |
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|
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for (i=1; i<this.numberTicks; i++){ |
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temp += this._series[i-1]._sumy; |
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t = new this.tickRenderer(this.tickOptions); |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(temp, this.name); |
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this._ticks.push(t); |
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} |
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this.max = this.max || temp; |
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|
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// if user specified a max and it is greater than sum, add a tick |
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if (this.max > temp) { |
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t = new this.tickRenderer(this.tickOptions); |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(this.max, this.name); |
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this._ticks.push(t); |
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} |
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} |
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|
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else if (this.tickMode == 'even') { |
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this.min = 0; |
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this.max = this.max || db.max; |
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// get a desired number of ticks |
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var nt = 2 + Math.ceil((dim-(this.tickSpacing-1))/this.tickSpacing); |
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range = this.max - this.min; |
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this.numberTicks = nt; |
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this.tickInterval = range / (this.numberTicks - 1); |
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for (i=0; i<this.numberTicks; i++){ |
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tt = this.min + i * this.tickInterval; |
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t = new this.tickRenderer(this.tickOptions); |
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// var t = new $.jqplot.AxisTickRenderer(this.tickOptions); |
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if (!this.showTicks) { |
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t.showLabel = false; |
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t.showMark = false; |
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} |
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else if (!this.showTickMarks) { |
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t.showMark = false; |
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} |
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t.setTick(tt, this.name); |
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this._ticks.push(t); |
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} |
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} |
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} |
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}; |
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|
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// called with scope of axis |
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$.jqplot.MekkoAxisRenderer.prototype.pack = function(pos, offsets) { |
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var ticks = this._ticks; |
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var max = this.max; |
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var min = this.min; |
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var offmax = offsets.max; |
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var offmin = offsets.min; |
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var lshow = (this._label == null) ? false : this._label.show; |
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|
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for (var p in pos) { |
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this._elem.css(p, pos[p]); |
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} |
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|
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this._offsets = offsets; |
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// pixellength will be + for x axes and - for y axes becasue pixels always measured from top left. |
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var pixellength = offmax - offmin; |
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var unitlength = max - min; |
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|
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// point to unit and unit to point conversions references to Plot DOM element top left corner. |
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this.p2u = function(p){ |
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return (p - offmin) * unitlength / pixellength + min; |
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}; |
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|
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this.u2p = function(u){ |
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return (u - min) * pixellength / unitlength + offmin; |
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}; |
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|
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if (this.name == 'xaxis' || this.name == 'x2axis'){ |
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this.series_u2p = function(u){ |
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return (u - min) * pixellength / unitlength; |
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}; |
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this.series_p2u = function(p){ |
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return p * unitlength / pixellength + min; |
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}; |
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} |
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|
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else { |
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this.series_u2p = function(u){ |
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return (u - max) * pixellength / unitlength; |
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}; |
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this.series_p2u = function(p){ |
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return p * unitlength / pixellength + max; |
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}; |
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} |
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|
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if (this.show) { |
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if (this.name == 'xaxis' || this.name == 'x2axis') { |
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for (var i=0; i<ticks.length; i++) { |
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var t = ticks[i]; |
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if (t.show && t.showLabel) { |
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var shim; |
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|
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if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) { |
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// will need to adjust auto positioning based on which axis this is. |
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var temp = (this.name == 'xaxis') ? 1 : -1; |
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switch (t.labelPosition) { |
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case 'auto': |
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// position at end |
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if (temp * t.angle < 0) { |
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shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; |
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} |
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// position at start |
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else { |
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shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2; |
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} |
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break; |
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case 'end': |
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shim = -t.getWidth() + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; |
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break; |
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case 'start': |
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shim = -t._textRenderer.height * Math.sin(t._textRenderer.angle) / 2; |
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break; |
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case 'middle': |
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shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; |
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break; |
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default: |
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shim = -t.getWidth()/2 + t._textRenderer.height * Math.sin(-t._textRenderer.angle) / 2; |
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break; |
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} |
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} |
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else { |
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shim = -t.getWidth()/2; |
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} |
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var val = this.u2p(t.value) + shim + 'px'; |
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t._elem.css('left', val); |
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t.pack(); |
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} |
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} |
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var w; |
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if (lshow) { |
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w = this._label._elem.outerWidth(true); |
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this._label._elem.css('left', offmin + pixellength/2 - w/2 + 'px'); |
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if (this.name == 'xaxis') { |
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this._label._elem.css('bottom', '0px'); |
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} |
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else { |
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this._label._elem.css('top', '0px'); |
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} |
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this._label.pack(); |
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} |
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// now show the labels under the bars. |
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var b, l, r; |
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for (var i=0; i<this.barLabels.length; i++) { |
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b = this._barLabels[i]; |
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if (b.show) { |
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w = b.getWidth(); |
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l = this._ticks[i].getLeft() + this._ticks[i].getWidth(); |
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r = this._ticks[i+1].getLeft(); |
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b._elem.css('left', (r+l-w)/2+'px'); |
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b._elem.css('top', this._ticks[i]._elem.css('top')); |
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b.pack(); |
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} |
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} |
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} |
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else { |
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for (var i=0; i<ticks.length; i++) { |
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var t = ticks[i]; |
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if (t.show && t.showLabel) { |
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var shim; |
|
if (t.constructor == $.jqplot.CanvasAxisTickRenderer && t.angle) { |
|
// will need to adjust auto positioning based on which axis this is. |
|
var temp = (this.name == 'yaxis') ? 1 : -1; |
|
switch (t.labelPosition) { |
|
case 'auto': |
|
// position at end |
|
case 'end': |
|
if (temp * t.angle < 0) { |
|
shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2; |
|
} |
|
else { |
|
shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2; |
|
} |
|
break; |
|
case 'start': |
|
if (t.angle > 0) { |
|
shim = -t._textRenderer.height * Math.cos(-t._textRenderer.angle) / 2; |
|
} |
|
else { |
|
shim = -t.getHeight() + t._textRenderer.height * Math.cos(t._textRenderer.angle) / 2; |
|
} |
|
break; |
|
case 'middle': |
|
shim = -t.getHeight()/2; |
|
break; |
|
default: |
|
shim = -t.getHeight()/2; |
|
break; |
|
} |
|
} |
|
else { |
|
shim = -t.getHeight()/2; |
|
} |
|
|
|
var val = this.u2p(t.value) + shim + 'px'; |
|
t._elem.css('top', val); |
|
t.pack(); |
|
} |
|
} |
|
if (lshow) { |
|
var h = this._label._elem.outerHeight(true); |
|
this._label._elem.css('top', offmax - pixellength/2 - h/2 + 'px'); |
|
if (this.name == 'yaxis') { |
|
this._label._elem.css('left', '0px'); |
|
} |
|
else { |
|
this._label._elem.css('right', '0px'); |
|
} |
|
this._label.pack(); |
|
} |
|
} |
|
} |
|
}; |
|
})(jQuery);
|
|
|