!7

static int delay = 500;

p-substance {
  final new ImageSurface is;
  // is.noMinimumSize = true; // now default
  showFrame(is); // no scroll pane

  print(is.getSize()); // should already be the window's inner size
  
  onResizeAndNow(is, r {
    print("component resized. " + is.getSize());
    awtLater(is, delay, r {
      BufferedImage img = is.getImage();
      if (img.getWidth() != is.getWidth() || img.getHeight() != is.getHeight())
        is.setImage(makeImage(is.getWidth(), is.getHeight()));
    });
  });
}

static BufferedImage makeImage(final int w, final int h) {
  ret renderImage(w, h, func(int x, int y) {
    ret x < w/2 != y < h/2;
  });
}