Mask sur une image externe

var leMasque:Shape= new Shape();						
						leMasque.cacheAsBitmap=true;
						leMasque.graphics.beginFill(0xFFFFFF);
						leMasque.graphics.lineStyle(1);
						leMasque.graphics.drawRoundRect(0,0,image1_mc.width,image1_mc.height,50);
						leMasque.graphics.endFill();
						image1_mc.cacheAsBitmap=true;
						image1_mc.mask=leMasque;

image1_mc.name = "picture"+nbTour;
trace("CREE : " + image1_mc.name);
image1_mc.z = nbTour;
image1_mc.alpha = 0;				

mesImages1[nbTour]._mc = image1_mc;

var image1Loader:Loader;

function loadImage1(url:String):void {
 try
 {
   // Set properties on my Loader object
	image1Loader = new Loader();			
	image1Loader.load(new URLRequest(url));
	image1Loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, image1Loading);
	image1Loader.contentLoaderInfo.addEventListener(Event.COMPLETE, image1Loaded);
	image1Loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, image1Error);
 }
 catch(ex)
 {
	 TXTError.text = "EXCEPTION loadImage1() " + ex.message;
 }
} // fin loadImage1

 
function image1Loaded(e:Event):void {
	try
	{
		// Load Image
		image1_mc.addChild(image1Loader);
		trace("Load init (nbTour:" + nbTour + ")");	
		var lIndice:int = image1_mc.z;
		if(nbTour == lIndice)
		{					
												
			reTailleIMG(image1_mc,lIndice);			

						addChild(image1_mc);						

			Tweener.addTween(image1_mc,{alpha:1, time:2, transition:"linear"});					

			var leMasque:Shape= new Shape();						
			leMasque.cacheAsBitmap=true;
			leMasque.graphics.beginFill(0xFFFFFF);
			leMasque.graphics.lineStyle(1);
			leMasque.graphics.drawRoundRect(0,0,image1_mc.width,image1_mc.height,50);
			leMasque.graphics.endFill();
			image1_mc.cacheAsBitmap=true;
			image1_mc.mask=leMasque;
			
			leMasque.x=image1_mc.x;
			leMasque.y=image1_mc.y;						
			
		}
						
		mesImages1[lIndice].isLoaded=true;					
		
	}
	catch(ex)
	{
		TXTError.text = "EXCEPTION image1Loaded " + ex.message;
	}
} // fin image1Loaded
 
function image1Loading(e:ProgressEvent):void {			
	// Use it to get current download progress
	// Hint: You could tie the values to a preloader :)
}
																
function image1Error(e:IOErrorEvent):void{
	var leTxt:TextField = new TextField();
	leTxt.text = "image1Error : Load Error !";
	leTxt.textColor = 0xF3F3F3;
	leTxt.x=0;
	leTxt.y=0;
	leTxt.width=widthAnimation;
	leTxt.height=heightAnimation;
	addChild(leTxt);
}

//charge dans le clip
loadImage1(mesImages1[nbTour]._path);	

function reTailleIMG(leMovieClip:MovieClip,indice:Number)
{
	try
	{
		var widthActu:Number = mesImages1[indice].widthIMG;
		var heightActu:Number = mesImages1[indice].heightIMG;		
		trace("RETAILLE IMG " + indice + "-" + widthActu + "-" + heightActu );	
		var ratio = widthActu/heightActu;  
		var newWidth:int=0;
		var newHeight:int=0;
		if(widthActu>heightActu)
		{
			newWidth = widthMAX; //widthActu;
			newHeight = newWidth/ratio;
		}
		else
		{
			newHeight = heightMAX; //heightActu;			
			newWidth = ratio*newHeight;
		}
		if (newWidth > widthMAX)
		{
			newWidth = widthMAX;
			newHeight = (newWidth / ratio);
			if(newHeight > heightMAX) 
			{
				newHeight = heightMAX;
				newWidth = (ratio * newHeight);
			}                
		}
		if(newHeight > heightMAX)
		{
			newHeight = heightMAX;
			newWidth = (newHeight * ratio);
			if (newWidth > widthMAX) 
			{
				newWidth = widthMAX;
				newWidth = (newWidth / ratio);
			}
		} 	
		leMovieClip.width = newWidth;
		leMovieClip.height = newHeight; 
		leMovieClip.x = Math.round((widthAnimation-newWidth)/2);
		var sousBandeau:int = leBandeau.y+leBandeau.height+10;
		leMovieClip.y = sousBandeau + Math.round((heightAnimation - sousBandeau - newHeight)/2);								
	}
	catch(ex)
	{
		TXTError.text = "EXCEPTION reTailleIMG " + ex.message;
	} 
}