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Legend.js
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Legend.js
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/*
Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dojox.charting.widget.Legend"]){
dojo._hasResource["dojox.charting.widget.Legend"]=true;
dojo.provide("dojox.charting.widget.Legend");
dojo.require("dijit._Widget");
dojo.require("dijit._Templated");
dojo.require("dojox.lang.functional.array");
dojo.require("dojox.lang.functional.fold");
dojo.declare("dojox.charting.widget.Legend",[dijit._Widget,dijit._Templated],{chartRef:"",horizontal:true,swatchSize:18,templateString:"<table dojoAttachPoint='legendNode' class='dojoxLegendNode'><tbody dojoAttachPoint='legendBody'></tbody></table>",legendNode:null,legendBody:null,postCreate:function(){
if(!this.chart){
if(!this.chartRef){
return;
}
this.chart=dijit.byId(this.chartRef);
if(!this.chart){
var _1=dojo.byId(this.chartRef);
if(_1){
this.chart=dijit.byNode(_1);
}else{
return;
}
}
this.series=this.chart.chart.series;
}else{
this.series=this.chart.series;
}
this.refresh();
},refresh:function(){
var df=dojox.lang.functional;
if(this._surfaces){
dojo.forEach(this._surfaces,function(_2){
_2.destroy();
});
}
this._surfaces=[];
while(this.legendBody.lastChild){
dojo.destroy(this.legendBody.lastChild);
}
if(this.horizontal){
dojo.addClass(this.legendNode,"dojoxLegendHorizontal");
this._tr=dojo.doc.createElement("tr");
this.legendBody.appendChild(this._tr);
}
var s=this.series;
if(s.length==0){
return;
}
if(s[0].chart.stack[0].declaredClass=="dojox.charting.plot2d.Pie"){
var t=s[0].chart.stack[0];
if(typeof t.run.data[0]=="number"){
var _3=df.map(t.run.data,"Math.max(x, 0)");
if(df.every(_3,"<= 0")){
return;
}
var _4=df.map(_3,"/this",df.foldl(_3,"+",0));
dojo.forEach(_4,function(x,i){
this._addLabel(t.dyn[i],t._getLabel(x*100)+"%");
},this);
}else{
dojo.forEach(t.run.data,function(x,i){
this._addLabel(t.dyn[i],x.legend||x.text||x.y);
},this);
}
}else{
dojo.forEach(s,function(x){
this._addLabel(x.dyn,x.legend||x.name);
},this);
}
},_addLabel:function(_5,_6){
var _7=dojo.doc.createElement("td"),_8=dojo.doc.createElement("td"),_9=dojo.doc.createElement("div");
dojo.addClass(_7,"dojoxLegendIcon");
dojo.addClass(_8,"dojoxLegendText");
_9.style.width=this.swatchSize+"px";
_9.style.height=this.swatchSize+"px";
_7.appendChild(_9);
if(this._tr){
this._tr.appendChild(_7);
this._tr.appendChild(_8);
}else{
var tr=dojo.doc.createElement("tr");
this.legendBody.appendChild(tr);
tr.appendChild(_7);
tr.appendChild(_8);
}
this._makeIcon(_9,_5);
_8.innerHTML=String(_6);
},_makeIcon:function(_a,_b){
var mb={h:this.swatchSize,w:this.swatchSize};
var _c=dojox.gfx.createSurface(_a,mb.w,mb.h);
this._surfaces.push(_c);
if(_b.fill){
_c.createRect({x:2,y:2,width:mb.w-4,height:mb.h-4}).setFill(_b.fill).setStroke(_b.stroke);
}else{
if(_b.stroke||_b.marker){
var _d={x1:0,y1:mb.h/2,x2:mb.w,y2:mb.h/2};
if(_b.stroke){
_c.createLine(_d).setStroke(_b.stroke);
}
if(_b.marker){
var c={x:mb.w/2,y:mb.h/2};
if(_b.stroke){
_c.createPath({path:"M"+c.x+" "+c.y+" "+_b.marker}).setFill(_b.stroke.color).setStroke(_b.stroke);
}else{
_c.createPath({path:"M"+c.x+" "+c.y+" "+_b.marker}).setFill(_b.color).setStroke(_b.color);
}
}
}else{
_c.createRect({x:2,y:2,width:mb.w-4,height:mb.h-4}).setStroke("black");
_c.createLine({x1:2,y1:2,x2:mb.w-2,y2:mb.h-2}).setStroke("black");
_c.createLine({x1:2,y1:mb.h-2,x2:mb.w-2,y2:2}).setStroke("black");
}
}
}});
}

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Legend.js (3 KB)

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