class PieChart extends MovieClip {
	
	//PROPERTIES///////////////////////////////////////
	
	//Objects
	private var chart:MovieClip;
	//Data
	private var chartData:Object;
	private var tempChartData:Array = new Array();
	private var total:Number = 0;
	public var radius:Number = 50;
	private var sectors:Number;
	private var chartX;
	private var chartY;
	private var radians:Number;
	//private var test:Number;//For Highlight function
	//Apperance
	public var sectorColours:Array = new Array();
	
	public var bGColour:Number = 0xFFFFFF;
	
	//METHODS//////////////////////////////////////////
	
	//CONSTRUCTOR
	public function PieChart() {
		//trace("constructed pieChart");
		radians =(Math.PI / 180);
	}
	
	//Draw the complete chart
	public function drawChart():Void {
		trace("Draw whole chart- drawChart");
		initializeChart(); //Initialize for drawing
		drawSectors(0); //Draw all sectors
	}
	
	//Initialize Chart
	public function initializeChart():Void {
		try {
			removeChart(); //If chart already exsists remove it
		}
		finally {
			//Initialize a new chart
			chart = this.createEmptyMovieClip("chart", 1);
			chart._x = chartX;
			chart._y = chartY;
			chart.lineStyle(0.1,0x000000,100); //line style
			sectors = chartData.cols; //Number of groups
			drawBackground(); //Draw background
			//getColours(); //Get colours for categories
		}
	}
	
	//Draw background circle
	public function drawBackground():Void {
		chart.createEmptyMovieClip("baseCircle",chart.getNextHighestDepth());
		var baseCircle = this["chart"]["baseCircle"];
		//Degrees to radians
		var rs = 0 * radians;
		var re = 360 * radians;
		//Draw a circle
		baseCircle.beginFill(bGColour);
		baseCircle.lineStyle(0.1, 0x888888);
		baseCircle.moveTo(radius * Math.cos(0), radius * Math.sin(0));
		for (var t = rs+0.1; t < re-0.1; t += .01) {
			baseCircle.lineTo(radius * Math.cos(t), radius * Math.sin(t));
		}
		baseCircle.lineTo(radius * Math.cos(0), radius * Math.sin(0));
		baseCircle.endFill();
	}
	
	//Sector drawing function
	private function drawSec(sector:MovieClip, rs:Number, re:Number):Void {
		sector.moveTo(0,0);
		for (var t = rs; t < re; t += .01) {
			sector.lineTo(radius * Math.cos(t), radius * Math.sin(t));
		}
		sector.lineTo(0,0);
	}
	
	//Draw specific sector
	public function drawSector(i:Number,j:Number):Void {
		chart.createEmptyMovieClip("sector"+i,chart.getNextHighestDepth());
		var sector = this["chart"]["sector"+i];
		//Degrees to radians
		var rs = chartData.row[i].angles[j-1] * radians;
		if (j == 0) {
			rs = 0;
		}
		var re = chartData.row[i].angles[j] * radians;
		//Draw
		sector.lineStyle(0, 0xFFFFFF);
		sector.beginFill(chartData.colours[j]);
		drawSec(sector,rs,re);
		sector.endFill();
		sector.lineStyle(0.1, 0x888888);
		var matrix = {matrixType:"box", x:-radius, y:-radius, w:(2*radius), h:(2*radius), r:0};
		sector.beginGradientFill("radial",[0xFFFFFF,0xFFFFFF],[0,80],[200, 255],matrix);
		drawSec(sector,rs,re);
		sector.endFill();
	}
	
	//Draw all sectors
	public function drawSectors(row:Number):Void {
		for (var i:Number =0; i<sectors; i++) {
			drawSector(row,i);
		}
	}
	
	//Get chart and data
	public function sendData(sentData:Object):Void {
		chartData = new Object();
		chartData = sentData;
	}
	/*
	public function itvSwitch(sector:MovieClip):Void {
		sector._visible = !sector._visible;
	}
	
	public function highLight(sector:MovieClip, onoff:Boolean):Void {
		if(!onoff){
			clearInterval(test);
		} else {
			test = setInterval(itvSwitch,500,sector);
		}
	}*/
	
	//DECONSTRUCTOR
	public function removeChart():Void {
		chart.removeMovieClip(); // Remove movieClip containing chart
	}

}