import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class GlassPaneTest extends JFrame {
  private JLayeredPane jlp;
  public JButton[] jb=new JButton[5];
  public static void main(String args[]){
    GlassPaneTest test=new GlassPaneTest();
    test.setSize(300,200);
    test.setVisible(true);
  }
  public GlassPaneTest(){
    String[] layer={"default","palette","modal","popup","drag"};
    jlp=getLayeredPane();
    for(int i=0;i<5;i++){
      jb[i]=new JButton(layer[i]);
      jb[i].setBounds(i*50,i*20,80,60);
      jlp.add(jb[i]);
      jlp.setLayer(jb[i],i*100);
      
    }
    GlassPane glass=new GlassPane(jlp);

    setGlassPane(glass);
    glass.setVisible(true);
  }

}
class GlassPane extends Component implements MouseListener,MouseMotionListener{
  private int mx,my;
  private JLayeredPane jlp;
  public GlassPane(JLayeredPane p){
    mx=my=-99;
    jlp=p;
    addMouseListener(this);
    addMouseMotionListener(this);
  }
  public void paint(Graphics g){
    g.fillOval(mx-5,my-5,10,10);
  }
  public void mouseClicked(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mouseEntered(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mouseExited(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mousePressed(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mouseReleased(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mouseDragged(MouseEvent e){
    redispatchMouseEvent(e);
  }
  public void mouseMoved(MouseEvent e){
    mx=e.getX();
    my=e.getY();
    repaint();
  }
  public void redispatchMouseEvent(MouseEvent e){
    Point point=e.getPoint();
    Component  component=jlp.getComponentAt(point);
    if(component!=null)
      component.dispatchEvent(new MouseEvent(component,e.getID(),e.getWhen(),e.getModifiers(),point.x,point.y,e.getClickCount(),e.isPopupTrigger()));
  }
}