var pieChart;
var legend = null;
var gObj = [];
var objCount =0;
var storeJson =[];
var titleStack = [];
require(["dojox/charting/Chart", "dojox/charting/plot2d/Pie",
"dojox/charting/action2d/Tooltip",
"dojox/charting/themes/Tom",
"dojox/charting/widget/Legend", "dojo/ready","dojox/mobile/parser",
"dojox/mobile/View", "dojox/mobile/Heading","dojox/mobile/deviceTheme",
"dojox/mobile/Button","dojox/data/CsvStore","dojo/store/DataStore"],
function(Chart, Pie, Tooltip, Tom, Legend, ready, parser){
//programmatically reading CSV from external file
var personStoreForGrid = new dojox.data.CsvStore({
url:"salesdata_distributor.csv"
});
//storing to DataStore
var objectStore = dojo.store.DataStore({
store: personStoreForGrid
});
//On relustant Data load & Parsing CSV data into Json Format which can be fed into Pie chart
objectStore.query().then(function(results){
//alert(results.length);
var parentrow=results[0].RowLabels;
var primaryval = [];
var secondaryval = [];
var finalJson ;
var nextVal=0;
//var primaryjson;
//var secondaryjson;
//parseInt(a)+parseInt(b);
var aggrsum = parseInt(results[0].SecondarySalesValue)+parseInt(results[0].PrimarySalesValue);
finalJson={text: parentrow+'('+aggrsum+')',y: results[0].SecondarySalesValue};
//alert("First Time Parent Row = "+parentrow)
for(var i = 1; i < results.length; ++i) {
if(results[i].RowLabels!==undefined && results[i].RowLabels!==parentrow){
finalJson.child=[{text: "primary("+results[nextVal].PrimarySalesValue+")",y: results[nextVal].PrimarySalesValue,child:primaryval},{text: "secondary("+results[0].SecondarySalesValue+")",y: results[nextVal].SecondarySalesValue,child:secondaryval}];
storeJson.push(finalJson);
parentrow = results[i].RowLabels;
//alert("Subsequently Parent Row = "+parentrow)
finalJson=null;
nextVal=i;
var aggrsum = parseInt(results[i].SecondarySalesValue)+parseInt(results[i].PrimarySalesValue);
finalJson={text: parentrow+'('+aggrsum+')',y: aggrsum};
primaryval = [];
secondaryval = [];
}
else
{
primaryval.push({text: results[i].ChildRowLabels+"("+results[i].PrimarySalesValue+")",y: results[i].PrimarySalesValue});
secondaryval.push({text: results[i].ChildRowLabels+"("+results[i].SecondarySalesValue+")",y: results[i].SecondarySalesValue});
}
}
finalJson.child=[{text: "primary("+results[nextVal].PrimarySalesValue+")",y: results[nextVal].PrimarySalesValue,child:primaryval},{text: "secondary("+results[nextVal].SecondarySalesValue+")",y: results[nextVal].SecondarySalesValue,child:secondaryval}];
storeJson.push(finalJson);
pieChart.updateSeries("Series A",storeJson);
pieChart.render();
legend.refresh();
// alert(JSON.stringify(storeJson));
//alert("json created");
});
ready(function(){
titleStack[0] = "Drill Down Pie Chart";
//var temp = dijit.byId("headerId");
//.set("label", "titleStack[0]");
//document.getElementById("headerId").setAttribute('label','yes') ;
parser.parse();
pieChart = new Chart("pieChart");
pieChart.setTheme(Tom).addPlot("default", {
type: "Pie",
font: "normal normal 10pt Tahoma",
fontColor: "#ccc",
labelWiring: "#ccc",
radius: 150,
labelStyle: "columns",
htmlLabels: true,
startAngle: -10
}).addSeries("Series A", storeJson);
//Logic to handle Item Clicked on the Pie Chart for Drilling down to the Next Level
var h = pieChart.connectToPlot("default", function(o){
if(o.type == "onclick"){
var test1 = storeJson;
var childItem = o.run.data[o.index].child;
if(childItem != undefined)
{
var str = (o.chart.series[0].data[o.index].text);
titleStack[titleStack.length] = str;
var temp = dijit.byId("headerId");
temp.set("label", str);
document.getElementById("backButtonId").style.display="";
++objCount;
gObj[objCount] = childItem;
drillDown(childItem);
//document.getElementById("headerId").setAttribute('label', "str") ;
}
}
});
gObj[0] = storeJson;
var anim_c = new Tooltip(pieChart, "default");
pieChart.render();
legend = new Legend({
chart: pieChart,
horizontal:true}, "legend");
});
});
// Logic to Move Back to previous Level of Stack
function backFired()
{
//alert(storeJson);
if(objCount==1){
document.getElementById("backButtonId").style.display="none";
}
if(objCount >= 0)
{
titleStack.pop();
str = titleStack[titleStack.length - 1];
var temp = dijit.byId("headerId");
temp.set("label", str);
gObj[objCount] = null;
--objCount;
var childItem = gObj[objCount];
drillDown(childItem);
}
}
//logic to Drill down on Click of the Item in a pie Chart
function drillDown(item)
{
pieChart.updateSeries("Series A",item);
pieChart.render();
legend.refresh();
}
