sclass DesktopPaneWithFitPicture_smooth_cacheScaled extends JDesktopPane {
  BufferedImage image, scaled;
  *(BufferedImage *image) {}
  
  protected void paintComponent(Graphics g) {  
    Pt size = calcFitSize(image, this);
    if (scaled == null || scaled.getWidth() != size.x || scaled.getHeight() != size.y) {
      print("Scaling image");
      scaled = resizeImage(image, size.x, size.y);
    }
    paintCenteredBackgroundImage(this, g, image);
  }
}

static JDesktopPane jDesktopPaneWithFitPicture_smooth_cacheScaled(S imageID) {
  ret swingNu(DesktopPaneWithFitPicture_smooth, loadImage2(imageID));
}