package  de.eyelogic {
 
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.system.System
	import flash.text.TextField;
	import flash.text.TextFieldAutoSize;
	import flash.utils.Timer;
	import flash.events.TimerEvent;
 
	/**
	* ...
	* @author Wanja Stier
	*/
	public class MemoryControl extends Sprite{
		private var tf:TextField;
		private var mb:Boolean;
		private var timer:Timer;
 
		public function MemoryControl(mb:Boolean, updateFreq:int, color:uint)
		{
			//set mb to true or false
			this.mb = mb;
 
			tf = new TextField();
			tf.textColor = color;
			tf.autoSize = TextFieldAutoSize.LEFT;
			addChild(tf);
 
			//set up the timer object and pass the update frequency in milliseconds to it
			//invoke updateMemoryUsage on each TimerEvent.Timer
			timer = new Timer(updateFreq);
			timer.addEventListener(TimerEvent.TIMER, updateMemoryUsage);
			timer.start();
		}
		private function updateMemoryUsage(e:TimerEvent):void
		{
			//if mb is true, display memory usage in MB, else display it in KB
			if (mb)
			{
				tf.text = (Math.round (((System.totalMemory / 1024)/1024) * 10)) / 10 + " MB";
			}
			else
			{
				tf.text = (Math.round ((System.totalMemory / 1024) * 10)) / 10 + " KB";
			}
 
		}
	}
 
}

//parameter 1: if first parameter is set to true, memory usage will be displayed in MB, if set to false it will be displayed in KB
//parameter 2: sets the update frequency in milliseconds
//parameter 3: sets text color of the text field instance
memoryControl = new MemoryControl(true, 500, 0xFFFFFF);
memoryControl.y = 400;
memoryControl.x = 50;
addChild(memoryControl);