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root / trunk / web / dojo / dojox / charting / DataChart.js @ 13

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.charting.DataChart"]){
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dojo._hasResource["dojox.charting.DataChart"]=true;
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dojo.provide("dojox.charting.DataChart");
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dojo.require("dojox.charting.Chart2D");
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dojo.require("dojox.charting.themes.PlotKit.blue");
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dojo.experimental("dojox.charting.DataChart");
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(function(){
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var _1={vertical:true,min:0,max:10,majorTickStep:5,minorTickStep:1,natural:false,stroke:"black",majorTick:{stroke:"black",length:8},minorTick:{stroke:"gray",length:2},majorLabels:true};
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var _2={natural:true,majorLabels:true,includeZero:false,majorTickStep:1,majorTick:{stroke:"black",length:8},fixUpper:"major",stroke:"black",htmlLabels:true,from:1};
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var _3={markers:true,tension:2,gap:2};
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dojo.declare("dojox.charting.DataChart",[dojox.charting.Chart2D],{scroll:true,comparative:false,query:"*",queryOptions:"",fieldName:"value",chartTheme:dojox.charting.themes.PlotKit.blue,displayRange:0,stretchToFit:true,minWidth:200,minHeight:100,showing:true,label:"name",constructor:function(_4,_5){
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this.domNode=dojo.byId(_4);
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dojo.mixin(this,_5);
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this.xaxis=dojo.mixin(dojo.mixin({},_2),_5.xaxis);
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if(this.xaxis.labelFunc=="seriesLabels"){
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this.xaxis.labelFunc=dojo.hitch(this,"seriesLabels");
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}
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this.yaxis=dojo.mixin(dojo.mixin({},_1),_5.yaxis);
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if(this.yaxis.labelFunc=="seriesLabels"){
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this.yaxis.labelFunc=dojo.hitch(this,"seriesLabels");
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}
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this._events=[];
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this.convertLabels(this.yaxis);
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this.convertLabels(this.xaxis);
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this.onSetItems={};
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this.onSetInterval=0;
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this.dataLength=0;
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this.seriesData={};
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this.seriesDataBk={};
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this.firstRun=true;
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this.dataOffset=0;
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this.chartTheme.plotarea.stroke={color:"gray",width:3};
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this.setTheme(this.chartTheme);
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if(this.displayRange){
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this.stretchToFit=false;
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}
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if(!this.stretchToFit){
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this.xaxis.to=this.displayRange;
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}
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this.addAxis("x",this.xaxis);
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this.addAxis("y",this.yaxis);
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_3.type=_5.type||"Markers";
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this.addPlot("default",dojo.mixin(_3,_5.chartPlot));
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this.addPlot("grid",dojo.mixin(_5.grid||{},{type:"Grid",hMinorLines:true}));
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if(this.showing){
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this.render();
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}
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if(_5.store){
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this.setStore(_5.store,_5.query,_5.fieldName,_5.queryOptions);
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}
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},destroy:function(){
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dojo.forEach(this._events,dojo.disconnect);
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this.inherited(arguments);
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},setStore:function(_6,_7,_8,_9){
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this.firstRun=true;
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this.store=_6||this.store;
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this.query=_7||this.query;
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this.fieldName=_8||this.fieldName;
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this.label=this.store.getLabelAttributes();
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this.queryOptions=_9||_9;
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dojo.forEach(this._events,dojo.disconnect);
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this._events=[dojo.connect(this.store,"onSet",this,"onSet"),dojo.connect(this.store,"onError",this,"onError")];
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this.fetch();
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},show:function(){
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if(!this.showing){
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dojo.style(this.domNode,"display","");
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this.showing=true;
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this.render();
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}
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},hide:function(){
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if(this.showing){
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dojo.style(this.domNode,"display","none");
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this.showing=false;
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}
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},onSet:function(_a){
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var nm=this.getProperty(_a,this.label);
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if(nm in this.runs||this.comparative){
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clearTimeout(this.onSetInterval);
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if(!this.onSetItems[nm]){
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this.onSetItems[nm]=_a;
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}
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this.onSetInterval=setTimeout(dojo.hitch(this,function(){
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clearTimeout(this.onSetInterval);
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var _b=[];
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for(var nm in this.onSetItems){
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_b.push(this.onSetItems[nm]);
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}
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this.onData(_b);
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this.onSetItems={};
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}),200);
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}
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},onError:function(_c){
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console.error("DataChart Error:",_c);
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},onDataReceived:function(_d){
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},getProperty:function(_e,_f){
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if(_f==this.label){
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return this.store.getLabel(_e);
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}
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if(_f=="id"){
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return this.store.getIdentity(_e);
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}
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var _10=this.store.getValues(_e,_f);
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if(_10.length<2){
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_10=this.store.getValue(_e,_f);
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}
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return _10;
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},onData:function(_11){
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if(!_11||!_11.length){
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return;
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}
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if(this.items&&this.items.length!=_11.length){
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dojo.forEach(_11,function(m){
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var id=this.getProperty(m,"id");
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dojo.forEach(this.items,function(m2,i){
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if(this.getProperty(m2,"id")==id){
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this.items[i]=m2;
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}
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},this);
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},this);
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_11=this.items;
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}
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if(this.stretchToFit){
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this.displayRange=_11.length;
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}
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this.onDataReceived(_11);
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this.items=_11;
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if(this.comparative){
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var nm="default";
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this.seriesData[nm]=[];
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this.seriesDataBk[nm]=[];
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dojo.forEach(_11,function(m,i){
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var _12=this.getProperty(m,this.fieldName);
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this.seriesData[nm].push(_12);
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},this);
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}else{
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dojo.forEach(_11,function(m,i){
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var nm=this.store.getLabel(m);
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if(!this.seriesData[nm]){
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this.seriesData[nm]=[];
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this.seriesDataBk[nm]=[];
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}
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var _13=this.getProperty(m,this.fieldName);
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if(dojo.isArray(_13)){
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this.seriesData[nm]=_13;
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}else{
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if(!this.scroll){
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var ar=dojo.map(new Array(i+1),function(){
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return 0;
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});
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ar.push(Number(_13));
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this.seriesData[nm]=ar;
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}else{
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if(this.seriesDataBk[nm].length>this.seriesData[nm].length){
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this.seriesData[nm]=this.seriesDataBk[nm];
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}
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this.seriesData[nm].push(Number(_13));
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}
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this.seriesDataBk[nm].push(Number(_13));
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}
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},this);
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}
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var _14;
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if(this.firstRun){
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this.firstRun=false;
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for(nm in this.seriesData){
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this.addSeries(nm,this.seriesData[nm]);
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_14=this.seriesData[nm];
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}
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}else{
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for(nm in this.seriesData){
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_14=this.seriesData[nm];
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if(this.scroll&&_14.length>this.displayRange){
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this.dataOffset=_14.length-this.displayRange-1;
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_14=_14.slice(_14.length-this.displayRange,_14.length);
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}
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this.updateSeries(nm,_14);
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}
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}
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this.dataLength=_14.length;
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if(this.showing){
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this.render();
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}
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},fetch:function(){
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if(!this.store){
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return;
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}
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this.store.fetch({query:this.query,queryOptions:this.queryOptions,start:this.start,count:this.count,sort:this.sort,onComplete:dojo.hitch(this,function(_15){
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setTimeout(dojo.hitch(this,function(){
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this.onData(_15);
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}),0);
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}),onError:dojo.hitch(this,"onError")});
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},convertLabels:function(_16){
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if(!_16.labels||dojo.isObject(_16.labels[0])){
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return null;
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}
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_16.labels=dojo.map(_16.labels,function(ele,i){
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return {value:i,text:ele};
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});
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return null;
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},seriesLabels:function(val){
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val--;
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if(this.series.length<1||(!this.comparative&&val>this.series.length)){
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return "-";
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}
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if(this.comparative){
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return this.store.getLabel(this.items[val]);
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}else{
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for(var i=0;i<this.series.length;i++){
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if(this.series[i].data[val]>0){
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return this.series[i].name;
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}
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}
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}
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return "-";
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},resizeChart:function(dim){
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var w=Math.max(dim.w,this.minWidth);
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var h=Math.max(dim.h,this.minHeight);
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this.resize(w,h);
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}});
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})();
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}