!7

p-substance {
  final ImageSurface is = showImage(makeImage(100, 100));
  is.addComponentListener(new ComponentAdapter {
    public void componentResized(ComponentEvent e) {
      print("component resized. " + is.getSize());
    }
  });
}

static BufferedImage makeImage(int w, int h) {
  ret newBufferedImage(w, h, Color.green);
}