egroupware/phpgwapi/js/jquery/jqplot/plugins/jqplot.enhancedLegendRenderer.js

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/**
* jqPlot
* Pure JavaScript plotting plugin using jQuery
*
* Version: 1.0.0b2_r947
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*
* Copyright (c) 2009-2011 Chris Leonello
* jqPlot is currently available for use in all personal or commercial projects
* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
* choose the license that best suits your project and use it accordingly.
*
* Although not required, the author would appreciate an email letting him
* know of any substantial use of jqPlot. You can reach the author at:
* chris at jqplot dot com or see http://www.jqplot.com/info.php .
*
* If you are feeling kind and generous, consider supporting the project by
* making a donation at: http://www.jqplot.com/donate.php .
*
* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
*
* version 2007.04.27
* author Ash Searle
* http://hexmen.com/blog/2007/03/printf-sprintf/
* http://hexmen.com/js/sprintf.js
* The author (Ash Searle) has placed this code in the public domain:
* "This code is unrestricted: you are free to use it however you like."
*
*/
(function($) {
// class $.jqplot.EnhancedLegendRenderer
// Legend renderer which can specify the number of rows and/or columns in the legend.
$.jqplot.EnhancedLegendRenderer = function(){
$.jqplot.TableLegendRenderer.call(this);
};
$.jqplot.EnhancedLegendRenderer.prototype = new $.jqplot.TableLegendRenderer();
$.jqplot.EnhancedLegendRenderer.prototype.constructor = $.jqplot.EnhancedLegendRenderer;
// called with scope of legend.
$.jqplot.EnhancedLegendRenderer.prototype.init = function(options) {
// prop: numberRows
// Maximum number of rows in the legend. 0 or null for unlimited.
this.numberRows = null;
// prop: numberColumns
// Maximum number of columns in the legend. 0 or null for unlimited.
this.numberColumns = null;
// prop: seriesToggle
// false to not enable series on/off toggling on the legend.
// true or a fadein/fadeout speed (number of milliseconds or 'fast', 'normal', 'slow')
// to enable show/hide of series on click of legend item.
this.seriesToggle = 'normal';
// prop: disableIEFading
// true to toggle series with a show/hide method only and not allow fading in/out.
// This is to overcome poor performance of fade in some versions of IE.
this.disableIEFading = true;
$.extend(true, this, options);
if (this.seriesToggle) {
$.jqplot.postDrawHooks.push(postDraw);
}
};
// called with scope of legend
$.jqplot.EnhancedLegendRenderer.prototype.draw = function() {
var legend = this;
if (this.show) {
var series = this._series;
var s;
var ss = 'position:absolute;';
ss += (this.background) ? 'background:'+this.background+';' : '';
ss += (this.border) ? 'border:'+this.border+';' : '';
ss += (this.fontSize) ? 'font-size:'+this.fontSize+';' : '';
ss += (this.fontFamily) ? 'font-family:'+this.fontFamily+';' : '';
ss += (this.textColor) ? 'color:'+this.textColor+';' : '';
ss += (this.marginTop != null) ? 'margin-top:'+this.marginTop+';' : '';
ss += (this.marginBottom != null) ? 'margin-bottom:'+this.marginBottom+';' : '';
ss += (this.marginLeft != null) ? 'margin-left:'+this.marginLeft+';' : '';
ss += (this.marginRight != null) ? 'margin-right:'+this.marginRight+';' : '';
this._elem = $('<table class="jqplot-table-legend" style="'+ss+'"></table>');
if (this.seriesToggle) {
this._elem.css('z-index', '3');
}
var pad = false,
reverse = false,
nr, nc;
if (this.numberRows) {
nr = this.numberRows;
if (!this.numberColumns){
nc = Math.ceil(series.length/nr);
}
else{
nc = this.numberColumns;
}
}
else if (this.numberColumns) {
nc = this.numberColumns;
nr = Math.ceil(series.length/this.numberColumns);
}
else {
nr = series.length;
nc = 1;
}
var i, j, tr, td1, td2, lt, rs, div, div0, div1;
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var idx = 0;
// check to see if we need to reverse
for (i=series.length-1; i>=0; i--) {
if (nc == 1 && series[i]._stack || series[i].renderer.constructor == $.jqplot.BezierCurveRenderer){
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reverse = true;
}
}
for (i=0; i<nr; i++) {
tr = $(document.createElement('tr'));
tr.addClass('jqplot-table-legend');
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if (reverse){
tr.prependTo(this._elem);
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}
else{
tr.appendTo(this._elem);
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}
for (j=0; j<nc; j++) {
if (idx < series.length && series[idx].show && series[idx].showLabel){
s = series[idx];
lt = this.labels[idx] || s.label.toString();
if (lt) {
var color = s.color;
if (!reverse){
if (i>0){
pad = true;
}
else{
pad = false;
}
}
else{
if (i == nr -1){
pad = false;
}
else{
pad = true;
}
}
rs = (pad) ? this.rowSpacing : '0';
td1 = $(document.createElement('td'));
td1.addClass('jqplot-table-legend jqplot-table-legend-swatch');
td1.css({textAlign: 'center', paddingTop: rs});
div0 = $(document.createElement('div'));
div0.addClass('jqplot-table-legend-swatch-outline');
div1 = $(document.createElement('div'));
div1.addClass('jqplot-table-legend-swatch');
div1.css({backgroundColor: color, borderColor: color});
td1.append(div0.append(div1));
td2 = $(document.createElement('td'));
td2.addClass('jqplot-table-legend jqplot-table-legend-label');
td2.css('paddingTop', rs);
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// td1 = $('<td class="jqplot-table-legend" style="text-align:center;padding-top:'+rs+';">'+
// '<div><div class="jqplot-table-legend-swatch" style="background-color:'+color+';border-color:'+color+';"></div>'+
// '</div></td>');
// td2 = $('<td class="jqplot-table-legend" style="padding-top:'+rs+';"></td>');
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if (this.escapeHtml){
td2.text(lt);
}
else {
td2.html(lt);
}
if (reverse) {
if (this.showLabels) {td2.prependTo(tr);}
if (this.showSwatches) {td1.prependTo(tr);}
}
else {
if (this.showSwatches) {td1.appendTo(tr);}
if (this.showLabels) {td2.appendTo(tr);}
}
if (this.seriesToggle) {
// add an overlay for clicking series on/off
// div0 = $(document.createElement('div'));
// div0.addClass('jqplot-table-legend-overlay');
// div0.css({position:'relative', left:0, top:0, height:'100%', width:'100%'});
// tr.append(div0);
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var speed;
if (typeof(this.seriesToggle) == 'string' || typeof(this.seriesToggle) == 'number') {
if (!$.jqplot.use_excanvas || !this.disableIEFading) {
speed = this.seriesToggle;
}
}
if (this.showSwatches) {
td1.bind('click', {series:s, speed:speed}, handleToggle);
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td1.addClass('jqplot-seriesToggle');
}
if (this.showLabels) {
td2.bind('click', {series:s, speed:speed}, handleToggle);
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td2.addClass('jqplot-seriesToggle');
}
}
pad = true;
}
}
idx++;
}
td1 = td2 = div0 = div1 = null;
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}
}
return this._elem;
};
var handleToggle = function (ev) {
ev.data.series.toggleDisplay(ev);
if (ev.data.series.canvas._elem.hasClass('jqplot-series-hidden')) {
$(this).addClass('jqplot-series-hidden');
$(this).next('.jqplot-table-legend-label').addClass('jqplot-series-hidden');
$(this).prev('.jqplot-table-legend-swatch').addClass('jqplot-series-hidden');
}
else {
$(this).removeClass('jqplot-series-hidden');
$(this).next('.jqplot-table-legend-label').removeClass('jqplot-series-hidden');
$(this).prev('.jqplot-table-legend-swatch').removeClass('jqplot-series-hidden');
}
};
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// called with scope of plot.
var postDraw = function () {
if (this.legend.renderer.constructor == $.jqplot.EnhancedLegendRenderer && this.legend.seriesToggle){
var e = this.legend._elem.detach();
this.eventCanvas._elem.after(e);
}
};
})(jQuery);