Implement all arguments to BitmapData.draw

[Niel Drummond]

Hello I am wanting to use a scale9grid method to resize images. Is this part of the nme api not yet implemented in jeash?

For example this works with flash and cpp but not the html5;

public static function scale9Bitmap (w:Int,h:Int,_scale9Grid:Rectangle,originalBitmap:BitmapData):BitmapData {
  var bmpData:BitmapData = new BitmapData (w,h,true,0x00000000);

  var rows:Array<Float> = [0,_scale9Grid.top,_scale9Grid.bottom,originalBitmap.height] ;
  var cols:Array<Float> = [0,_scale9Grid.left,_scale9Grid.right,originalBitmap.width];

  var dRows:Array<Float> = [0,_scale9Grid.top,h - (originalBitmap.height - _scale9Grid.bottom),h];
  var dCols:Array<Float> = [0,_scale9Grid.left,w - (originalBitmap.width - _scale9Grid.right),w];

  var origin:Rectangle;
  var draw:Rectangle;
  var mat:Matrix = new Matrix ();

  var cx:Int = 0;
  while (cx < 3) {

   var cy:Int = 0;
   while (cy < 3) {
    origin = new Rectangle (cols[cx],rows[cy],cols[cx + 1] - cols[cx],rows[cy + 1] - rows[cy]);
    draw = new Rectangle (dCols[cx],dRows[cy],dCols[cx + 1] - dCols[cx],dRows[cy + 1] - dRows[cy]);
    mat.identity ();
    mat.a = draw.width / origin.width;
    mat.d = draw.height / origin.height;
    mat.tx = draw.x - origin.x * mat.a;
    mat.ty = draw.y - origin.y * mat.d;
    bmpData.draw (originalBitmap,mat,null,null,draw,true);
    cy ++;

   }

   cx ++;
  }

  return bmpData;
 }

[Niel Drummond (niel-drummond)]

I've been meaning to fix this, but haven't yet had the time.

[chris (impaler777)]

oh yes thanks for confirming it, the only other way I can think of to do 9 slice scaling is to have 9 bitmap objects and that is kind of messy. Every other target in nme supports BitmapData.draw it would be nice to see it here if its possible. There are other useful things you can do with it besides this.

[Niel Drummond (niel-drummond)]

clipRect is implemented. Smoothing is always enabled due to limitations with the canvas implementation on browsers.

[Philippe (philippe-elsass)]

ColorTransform argument doesn't seem to work.

// colorize a white (+alpha) image
var bmp = new BitmapData(image.width, image.height, true, 0);
var ct = new nme.geom.ColorTransform();
ct.redMultiplier = (color >> 16) / 256.0;
ct.greenMultiplier = ((color & 0xff00) >> 8) / 256.0;
ct.blueMultiplier = (color & 0xff) / 256.0;
bmp.draw(source, null, ct);