Pie.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.plot2d.Pie"]){
	dojo._hasResource["dojox.charting.plot2d.Pie"]=true;
	dojo.provide("dojox.charting.plot2d.Pie");
	dojo.require("dojox.charting.Element");
	dojo.require("dojox.charting.axis2d.common");
	dojo.require("dojox.charting.plot2d.common");
	dojo.require("dojox.lang.functional");
	dojo.require("dojox.gfx");
	(function(){
	var df=dojox.lang.functional,du=dojox.lang.utils,dc=dojox.charting.plot2d.common,da=dojox.charting.axis2d.common,g=dojox.gfx;
	dojo.declare("dojox.charting.plot2d.Pie",dojox.charting.Element,{defaultParams:{labels:true,ticks:false,fixed:true,precision:1,labelOffset:20,labelStyle:"default",htmlLabels:true},optionalParams:{font:"",fontColor:"",radius:0},constructor:function(_1,_2){
	this.opt=dojo.clone(this.defaultParams);
	du.updateWithObject(this.opt,_2);
	du.updateWithPattern(this.opt,_2,this.optionalParams);
	this.run=null;
	this.dyn=[];
	},destroy:function(){
	this.resetEvents();
	this.inherited(arguments);
	},clear:function(){
	this.dirty=true;
	this.dyn=[];
	this.run=null;
	return this;
	},setAxis:function(_3){
	return this;
	},addSeries:function(_4){
	this.run=_4;
	return this;
	},calculateAxes:function(_5){
	return this;
	},getRequiredColors:function(){
	return this.run?this.run.data.length:0;
	},plotEvent:function(o){
	},connect:function(_6,_7){
	this.dirty=true;
	return dojo.connect(this,"plotEvent",_6,_7);
	},events:function(){
	var ls=this.plotEvent._listeners;
	if(!ls\|\|!ls.length){
	return false;
	}
	for(var i in ls){
	if(!(i in Array.prototype)){
	return true;
	}
	}
	return false;
	},resetEvents:function(){
	this.plotEvent({type:"onplotreset",plot:this});
	},_connectEvents:function(_8,o){
	_8.connect("onmouseover",this,function(e){
	o.type="onmouseover";
	o.event=e;
	this.plotEvent(o);
	});
	_8.connect("onmouseout",this,function(e){
	o.type="onmouseout";
	o.event=e;
	this.plotEvent(o);
	});
	_8.connect("onclick",this,function(e){
	o.type="onclick";
	o.event=e;
	this.plotEvent(o);
	});
	},render:function(_9,_a){
	if(!this.dirty){
	return this;
	}
	this.dirty=false;
	this.cleanGroup();
	var s=this.group,_b,t=this.chart.theme;
	this.resetEvents();
	if(!this.run\|\|!this.run.data.length){
	return this;
	}
	var rx=(_9.width-_a.l-_a.r)/2,ry=(_9.height-_a.t-_a.b)/2,r=Math.min(rx,ry),_c="font" in this.opt?this.opt.font:t.axis.font,_d=_c?g.normalizedLength(g.splitFontString(_c).size):0,_e="fontColor" in this.opt?this.opt.fontColor:t.axis.fontColor,_f=0,_10,_11,_12,_13,_14,_15,run=this.run.data,_16=this.events();
	if(typeof run[0]=="number"){
	_11=df.map(run,"Math.max(x, 0)");
	if(df.every(_11,"<= 0")){
	return this;
	}
	_12=df.map(_11,"/this",df.foldl(_11,"+",0));
	if(this.opt.labels){
	_13=dojo.map(_12,function(x){
	return x>0?this._getLabel(x*100)+"%":"";
	},this);
	}
	}else{
	_11=df.map(run,"Math.max(x.y, 0)");
	if(df.every(_11,"<= 0")){
	return this;
	}
	_12=df.map(_11,"/this",df.foldl(_11,"+",0));
	if(this.opt.labels){
	_13=dojo.map(_12,function(x,i){
	if(x<=0){
	return "";
	}
	var v=run[i];
	return "text" in v?v.text:this._getLabel(x*100)+"%";
	},this);
	}
	}
	if(this.opt.labels){
	_14=df.foldl1(df.map(_13,function(_17){
	return dojox.gfx._base._getTextBox(_17,{font:_c}).w;
	},this),"Math.max(a, b)")/2;
	if(this.opt.labelOffset<0){
	r=Math.min(rx-2*_14,ry-_d)+this.opt.labelOffset;
	}
	_15=r-this.opt.labelOffset;
	}
	if("radius" in this.opt){
	r=this.opt.radius;
	_15=r-this.opt.labelOffset;
	}
	var _18={cx:_a.l+rx,cy:_a.t+ry,r:r};
	this.dyn=[];
	dojo.some(_12,function(_19,i){
	if(_19<=0){
	return false;
	}
	var v=run[i];
	if(_19>=1){
	var _1a,_1b,_1c;
	if(typeof v=="object"){
	_1a="color" in v?v.color:new dojo.Color(t.next("color"));
	_1b="fill" in v?v.fill:dc.augmentFill(t.series.fill,_1a);
	_1c="stroke" in v?v.stroke:dc.augmentStroke(t.series.stroke,_1a);
	}else{
	_1a=new dojo.Color(t.next("color"));
	_1b=dc.augmentFill(t.series.fill,_1a);
	_1c=dc.augmentStroke(t.series.stroke,_1a);
	}
	var _1d=s.createCircle(_18).setFill(_1b).setStroke(_1c);
	this.dyn.push({color:_1a,fill:_1b,stroke:_1c});
	if(_16){
	var o={element:"slice",index:i,run:this.run,plot:this,shape:_1d,x:i,y:typeof v=="number"?v:v.y,cx:_18.cx,cy:_18.cy,cr:r};
	this._connectEvents(_1d,o);
	}
	return true;
	}
	var end=_f+_192Math.PI;
	if(i+1==_12.length){
	end=2*Math.PI;
	}
	var _1e=end-_f,x1=_18.cx+rMath.cos(_f),y1=_18.cy+rMath.sin(_f),x2=_18.cx+rMath.cos(end),y2=_18.cy+rMath.sin(end);
	var _1a,_1b,_1c;
	if(typeof v=="object"){
	_1a="color" in v?v.color:new dojo.Color(t.next("color"));
	_1b="fill" in v?v.fill:dc.augmentFill(t.series.fill,_1a);
	_1c="stroke" in v?v.stroke:dc.augmentStroke(t.series.stroke,_1a);
	}else{
	_1a=new dojo.Color(t.next("color"));
	_1b=dc.augmentFill(t.series.fill,_1a);
	_1c=dc.augmentStroke(t.series.stroke,_1a);
	}
	var _1d=s.createPath({}).moveTo(_18.cx,_18.cy).lineTo(x1,y1).arcTo(r,r,0,_1e>Math.PI,true,x2,y2).lineTo(_18.cx,_18.cy).closePath().setFill(_1b).setStroke(_1c);
	this.dyn.push({color:_1a,fill:_1b,stroke:_1c});
	if(_16){
	var o={element:"slice",index:i,run:this.run,plot:this,shape:_1d,x:i,y:typeof v=="number"?v:v.y,cx:_18.cx,cy:_18.cy,cr:r};
	this._connectEvents(_1d,o);
	}
	_f=end;
	return false;
	},this);
	if(this.opt.labels){
	_f=0;
	dojo.some(_12,function(_1f,i){
	if(_1f<=0){
	return false;
	}
	if(_1f>=1){
	var v=run[i],_20=da.createText[this.opt.htmlLabels&&dojox.gfx.renderer!="vml"?"html":"gfx"](this.chart,s,_18.cx,_18.cy+_d/2,"middle",_13[i],_c,(typeof v=="object"&&"fontColor" in v)?v.fontColor:_e);
	if(this.opt.htmlLabels){
	this.htmlElements.push(_20);
	}
	return true;
	}
	var end=_f+_1f2Math.PI,v=run[i];
	if(i+1==_12.length){
	end=2*Math.PI;
	}
	var _21=(_f+end)/2,x=_18.cx+_15Math.cos(_21),y=_18.cy+_15Math.sin(_21)+_d/2;
	var _20=da.createText[this.opt.htmlLabels&&dojox.gfx.renderer!="vml"?"html":"gfx"](this.chart,s,x,y,"middle",_13[i],_c,(typeof v=="object"&&"fontColor" in v)?v.fontColor:_e);
	if(this.opt.htmlLabels){
	this.htmlElements.push(_20);
	}
	_f=end;
	return false;
	},this);
	}
	return this;
	},_getLabel:function(_22){
	return this.opt.fixed?_22.toFixed(this.opt.precision):_22.toString();
	}});
	})();
	}

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