Cloned Panel

    I am stuck....and I am sure it is simple. Basically I have a
panel that has some stuff in it. I want to have another panel (kind
of an overview) that shows everything in the main panel.

So I have something like:
            mainPanel = new JPanel() {
                public void paintComponent(Graphics g) {
                    super.paintComponent(g);
                    Rectangle r = mainPanel.getBounds();
                    BufferedImage bi = new BufferedImage(r.width,
r.height, BufferedImage.TYPE_INT_ARGB);
                    Graphics biG = bi.createGraphics();
                    super.paint(biG);
                    myP.setImage(bi);
                }
            };

    public static class MyPanel extends JPanel {
        private BufferedImage bi;

        public MyPanel() {
            this.bi = new BufferedImage(1, 1,
BufferedImage.TYPE_INT_ARGB);
        }

        public void setImage(BufferedImage bi) {
            System.out.println("...new image");
            this.bi = bi;
            this.repaint();
        }

        public void paintComponent(Graphics g) {
            super.paintComponent(g);
            System.out.println("bi: " + bi.getWidth() + ", " +
bi.getHeight());
            Graphics2D g2 = (Graphics2D) g;
            g2.drawImage(bi, 0, 0, bi.getWidth(), bi.getHeight(),
null);
        }

      myP = new MyPanel();

so mainPanel has all the stuff, and myP should show it as well....but
it's not working.

any ideas?