Name: diC59631 Date: 01/23/98


1. Just compile and run the program
    Press the right mouse button (Solaris) in
       the List (the first time
       the click will not succeed, don't know
       why)
    Hold the button down and drag it down the
    PopupMenu.

    Result: the list selection in the background
    is changing. Therefore when executing any
    action associated with the MenuItems the
    wrong selectionIndex might be used.


2. SOURCE:

import com.sun.java.swing.*;
public class dummy extends JList
{
   JPopupMenu popupMenu;
   public dummy ( String[] vals ) {
      super ( vals );
      popupMenu = new JPopupMenu();
      popupMenu.add( new JMenuItem ( "rename" ) );
      popupMenu.add( new JMenuItem ( "add" ) );
      popupMenu.add( new JMenuItem ( "delete" ) );
      popupMenu.pack();
      addMouseListener ( new PopupMouseListener() );
   }
   class PopupMouseListener extends java.awt.event.MouseAdapter
   {
      public void mousePressed ( java.awt.event.MouseEvent e ) {
         if (e.isPopupTrigger()) {
            popup(e);
            e.consume();
         }
      }
      public void mouseReleased ( java.awt.event.MouseEvent e ) {
         if (e.isPopupTrigger()) {
            popup(e);
            e.consume();
         }
      }
      void popup( java.awt.event.MouseEvent e ) {
         int index = locationToIndex (
            new java.awt.Point(e.getX(), e.getY() ));
         popupMenu.show(dummy.this, e.getX(), e.getY());
      }
   }

   public static final void main ( String[] args ) {
      JFrame f = new JFrame();
      String[] sa = new String[] { "one", "two", "three", "four" };
      dummy l = new dummy ( sa );
      f.getContentPane().add( l );
      f.pack();
      f.show();
   }
}


3. -
4. -
5. Swing Version 0.7
(Review ID: 23886)
======================================================================