// Richard Caceres, rcaceres {at} ucla.edu
// DMA 199
// $Id: ImageIG3.as,v 380.1 2008-01-30 18:11:35-08 - - $
// $Date: 2008-01-30 18:11:35-08 $


package {
	import flash.display.Sprite;
	import flash.display.Loader;
	import flash.events.*;
	import flash.net.*;
	import fl.transitions.*;
	import fl.transitions.easing.*;
	
	public class ImageIG3 extends Sprite {
		var url_str:String;
		var isLoaded:Boolean = false;
		var isBeingLoaded:Boolean = false;
        var obj_width, obj_height;
        var fadetween:Tween;
        var dimtween:Tween;
		
		public function ImageIG3 (_url:String, _width, _height) {
			url_str = _url;
			obj_width = _width;
			obj_height = _height;
			this.alpha = .2;
			loadImage();
		}
		
		public function loadImage ():void {
			trace ("loadImage: "+url_str);
			if (isLoaded == false && isBeingLoaded == false) {
				var loader:Loader = new Loader();
				loader.load (new URLRequest(url_str));
				loader.contentLoaderInfo.addEventListener (Event.COMPLETE, handleLoadComplete);
			    isBeingLoaded = true;
				addChild(loader);
	        } else {
		        this.fadeIn();
	        }
		}
		
		public function handleLoadComplete (e:Event) {
			//trace ("handleComplete: "+e);
			isBeingLoaded = false;
			isLoaded = true;
			//this.width = this.obj_width;
			//this.height = this.obj_height;

            this.fadeIn();
		}
	
	    public function fadeIn ():void {
			//fadetween = new Tween (this, "y", Regular.easeOut, 0, this.y, 30);
	    }
	    public function fadeOut ():void {
			fadetween = new Tween (this, "alpha", Regular.easeOut, this.alpha, 0, 30);
	    }
	
	    public function focus ():void {
		   	dimtween = new Tween (this, "alpha", Regular.easeOut, this.alpha, 1, 2, true);
	    }
	    public function unfocus ():void {
		    if (this.alpha > .2) 
		   		dimtween = new Tween (this, "alpha", Regular.easeOut, this.alpha, .2, 2, true);
     	}
	
		// GET AND SET VARIABLES
		// - Actionscript has the feature to officially create get and set methods
		// which then appear to be simple parameters.
		// example way to access these: trace(foo.centerX); or foo.centerX = 10;
		
		public function get centerX():int {
			return x + width/2.0;
		}
		public function set centerX(val:int) {
			x = val - (width/2.0);
		}
	}
}