Пример #1
0
  // init
  private static void init() {
    if (frame != null) frame.setVisible(false);
    frame = new JFrame();
    offscreenImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    onscreenImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    offscreen = offscreenImage.createGraphics();
    onscreen = onscreenImage.createGraphics();
    setXscale();
    setYscale();
    offscreen.setColor(DEFAULT_CLEAR_COLOR);
    offscreen.fillRect(0, 0, width, height);
    setPenColor();
    setPenRadius();
    setFont();
    clear();

    // add antialiasing
    RenderingHints hints =
        new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    hints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    offscreen.addRenderingHints(hints);

    // frame stuff
    ImageIcon icon = new ImageIcon(onscreenImage);
    JLabel draw = new JLabel(icon);

    draw.addMouseListener(std);
    draw.addMouseMotionListener(std);

    frame.setContentPane(draw);
    frame.addKeyListener(std); // JLabel cannot get keyboard focus
    frame.setResizable(false);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // closes all windows
    // frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);      // closes only current window
    frame.setTitle("Standard Draw");
    frame.setJMenuBar(createMenuBar());
    frame.pack();
    frame.requestFocusInWindow();
    frame.setVisible(true);
  }
Пример #2
0
 /** Clear the screen to the default color (white). */
 public static void clear() {
   clear(DEFAULT_CLEAR_COLOR);
 }