Resizing Bitmap proportionally

programming flash
1

My goal at the moment is to simply add a bitmap to the display, and have it fit the entire screen width and resize it’s height proportionally… I have some coding done, but here’s where I’m stuck: Initially the bitmap does not display properly, but when using the same code in my resizeHandler() the image corrects itself and displays properly.

Here’s the code:

package {
    import flash.display.*;
    import flash.events.*;
    import flash.media.*;
    import flash.net.*;
    import br.com.stimuli.loading.*; 
    import caurina.transitions.*;
    import flash.net.URLRequest;
    
    public class Photography extends MovieClip {

        var loader : BulkLoader = new BulkLoader("main-site");
        //Photos
        var swings : Bitmap = new Bitmap;
        
        public function Photography() {
            stage.align = StageAlign.TOP_LEFT;
            stage.scaleMode = StageScaleMode.NO_SCALE;
            this.stage.addEventListener(Event.RESIZE, resizeHandler);
            
            loader.add("images/swings.jpg", {id:"01"});
            loader.addEventListener(BulkLoader.COMPLETE, allLoaded);
            loader.start();
        }
        
        public function allLoaded(event:Event): void {
            swings = loader.getBitmap("01");
            swings.width = stage.stageWidth;
            swings.x = (stage.stageWidth / 2) - (swings.width / 2);
            swings.y = (stage.stageHeight / 2) - (swings.height / 2);
            var ratio : Number = swings.scaleX;
            swings.scaleY = ratio;
            addChild(swings);
        }
        
        public function resizeHandler(event:Event): void {
            swings.width = stage.stageWidth;
            swings.x = (stage.stageWidth / 2) - (swings.width / 2);
            swings.y = (stage.stageHeight / 2) - (swings.height / 2);
            var ratio : Number = swings.scaleX;
            swings.scaleY = ratio;
        }
    }
}

I’m hoping I’m missing something small and simple, and any help is appreciated!