/**
   * Paint to an offscreen graphic, e.g. a graphic for an image or svg file.
   *
   * @param g
   * @param rect
   */
  public void paintOffscreen(Graphics2D g, Rectangle rect) {

    // Get the components of the sort by X position.
    Component[] components = getComponents();
    Arrays.sort(
        components,
        new Comparator<Component>() {
          public int compare(Component component, Component component1) {
            return component.getX() - component1.getX();
          }
        });

    for (Component c : this.getComponents()) {

      if (c instanceof DataPanel) {
        Graphics2D g2d = (Graphics2D) g.create();
        Rectangle clipRect = new Rectangle(c.getBounds());
        clipRect.height = rect.height;
        g2d.setClip(clipRect);
        g2d.translate(c.getX(), 0);
        ((DataPanel) c).paintOffscreen(g2d, rect);
      }
    }
    // super.paintBorder(g);
  }
  public void addClient() {
    client =
        new Canvas() {
          public void paint(Graphics g) {
            super.paint(g);
          }
        };
    client.setBackground(new Color(30, 220, 40));
    clientCont.add(client);
    clientCont.validate();
    final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
    WindowIDProvider pid = (WindowIDProvider) acc.getPeer(client);
    log.fine("Added XEmbed server(Canvas) with X window ID " + pid.getWindow());
    Rectangle toFocusBounds = toFocus.getBounds();
    toFocusBounds.setLocation(toFocus.getLocationOnScreen());
    f.validate();

    // KDE doesn't accept clicks on title as activation - click below title
    Rectangle fbounds = f.getBounds();
    fbounds.y += f.getInsets().top;
    fbounds.height -= f.getInsets().top;

    Process proc =
        startClient(
            new Rectangle[] {
              fbounds,
              dummy.getBounds(),
              toFocusBounds,
              new Rectangle(b_modal.getLocationOnScreen(), b_modal.getSize()),
              new Rectangle(10, 130, 20, 20)
            },
            pid.getWindow());
    new ClientWatcher(client, proc, clientCont).start();
  }