199 lines
8.7 KiB
JavaScript
199 lines
8.7 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 $.jqplot.EnhancedLegendRenderer
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// Legend renderer which can specify the number of rows and/or columns in the legend.
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$.jqplot.EnhancedLegendRenderer = function(){
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$.jqplot.TableLegendRenderer.call(this);
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};
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$.jqplot.EnhancedLegendRenderer.prototype = new $.jqplot.TableLegendRenderer();
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$.jqplot.EnhancedLegendRenderer.prototype.constructor = $.jqplot.EnhancedLegendRenderer;
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// called with scope of legend.
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$.jqplot.EnhancedLegendRenderer.prototype.init = function(options) {
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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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// prop: seriesToggle
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// false to not enable series on/off toggling on the legend.
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// true or a fadein/fadeout speed (number of milliseconds or 'fast', 'normal', 'slow')
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// to enable show/hide of series on click of legend item.
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this.seriesToggle = 'normal';
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// prop: disableIEFading
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// true to toggle series with a show/hide method only and not allow fading in/out.
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// This is to overcome poor performance of fade in some versions of IE.
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this.disableIEFading = true;
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$.extend(true, this, options);
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if (this.seriesToggle) {
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$.jqplot.postDrawHooks.push(postDraw);
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}
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};
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// called with scope of legend
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$.jqplot.EnhancedLegendRenderer.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 s;
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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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if (this.seriesToggle) {
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this._elem.css('z-index', '3');
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}
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var pad = false,
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reverse = false,
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nr, nc;
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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(series.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(series.length/this.numberColumns);
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}
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else {
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nr = series.length;
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nc = 1;
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}
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var i, j, tr, td1, td2, lt, rs;
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var idx = 0;
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// check to see if we need to reverse
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for (i=series.length-1; i>=0; i--) {
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if (series[i]._stack || series[i].renderer.constructor == $.jqplot.BezierCurveRenderer){
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reverse = true;
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}
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}
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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 < series.length && series[idx].show && series[idx].showLabel){
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s = series[idx];
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lt = this.labels[idx] || s.label.toString();
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if (lt) {
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var color = s.color;
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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="background-color:'+color+';border-color:'+color+';"></div>'+
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'</div></td>');
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td2 = $('<td class="jqplot-table-legend" style="padding-top:'+rs+';"></td>');
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if (this.escapeHtml){
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td2.text(lt);
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}
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else {
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td2.html(lt);
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}
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if (reverse) {
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if (this.showLabels) {td2.prependTo(tr);}
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if (this.showSwatches) {td1.prependTo(tr);}
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}
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else {
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if (this.showSwatches) {td1.appendTo(tr);}
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if (this.showLabels) {td2.appendTo(tr);}
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}
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if (this.seriesToggle) {
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var speed;
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if (typeof(this.seriesToggle) == 'string' || typeof(this.seriesToggle) == 'number') {
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if (!$.jqplot.use_excanvas || !this.disableIEFading) {
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speed = this.seriesToggle;
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}
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}
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if (this.showSwatches) {
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td1.bind('click', {series:s, speed:speed}, s.toggleDisplay);
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td1.addClass('jqplot-seriesToggle');
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}
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if (this.showLabels) {
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td2.bind('click', {series:s, speed:speed}, s.toggleDisplay);
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td2.addClass('jqplot-seriesToggle');
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}
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}
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pad = true;
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}
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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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return this._elem;
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};
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// called with scope of plot.
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var postDraw = function () {
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if (this.legend.renderer.constructor == $.jqplot.EnhancedLegendRenderer && this.legend.seriesToggle){
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var e = this.legend._elem.detach();
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this.eventCanvas._elem.after(e);
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}
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};
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})(jQuery);
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