Flash: Tiling an external image

Here's how to tile an image using MovieClipLoader loadClip, loadMovie, createEmptyMovieClip, and BitmapData.

    /**
     * Sets the tiled background image for the panel
     *
     * @param backgroundImageUrl  the URL of the image
     */
    private function setBackgroundImageUrl(backgroundImageUrl: String): Void {
        var imageHolder = this.createEmptyMovieClip('imageHolder', Helper.getNewDepth());
        var movieClipLoader = new MovieClipLoader();
        movieClipLoader.addListener({onLoadInit: Delegate.create(this, function() {
            var tileWidth = imageHolder._width;
            var tileHeight = imageHolder._height;
            if (tileWidth == 0 || tileHeight ==0) { return; }  // Something went wrong  [Jon Aquino 2007-06-07]
            for (var x = 0; x < Stage.width; x += tileWidth) {
                for (var y = 0; y < Stage.height; y += tileHeight) {
                    if (x == 0 && y == 0) { continue; }
                    var tile = this.createEmptyMovieClip('tile_' + x + '_' + y, Helper.getNewDepth());
                    tile._x = x;
                    tile._y = y;
                    var bitmapData = new BitmapData(tileWidth, tileHeight, true, 0);
                    tile.attachBitmap(bitmapData, Helper.getNewDepth());
                    bitmapData.draw(imageHolder);
                }
            }
        })});
        movieClipLoader.loadClip(Config.getInstance().getBackgroundImageUrl(), imageHolder);
    }