fit a bitmap image to its container regardless of aspect ratio

getNewBitmap.as

protected function getNewBitmap(data:BitmapData):Bitmap
			{
				var horizontalRatio:Number = this.width / data.width;
				var verticalRatio:Number = this.height / data.height;
				
				var ratio:Number = Math.max(horizontalRatio,verticalRatio);
				
				var matrix:Matrix = new Matrix();
				
				matrix.scale(ratio,ratio);
				
				var newBitmapData:BitmapData;
				
				var adjustedWidth:Number = data.width*ratio;
				var adjustedHeight:Number = data.height*ratio;
				
				matrix.translate((this.width-adjustedWidth)/2,(this.height-adjustedHeight)/2);
				
				newBitmapData = new BitmapData(this.width,this.height,false);
				newBitmapData.draw(data,matrix,null,null,null,true);
				
				return new Bitmap(newBitmapData);
			}