JComboBox & JPopupMenu

[Eleni Fatourou]

Hi,
I am trying desperately to find a way to do this:
When a user right-clicks on an item of a JComboBox drop down list, a popup menu to appear (i would like to show options like edit, delete etc for the items)
After extending a JComboBox i came up with an element that shows a popup BUT i can not find a way to prevent the drop down list of Combo from hiding. Can anyone please tell me how to do this?
Here is the code:

public class MComboBox extends JComboBox
{
    private JPopupMenu manageItems;

    /***********
      * Inner class for list listener
      */
private class MyComboUI extends MetalComboBoxUI
{
  /*****************
   * Inner class for popup
   */
 private class MyComboPopup extends BasicComboPopup
 {
   MyComboPopup(JComboBox x)
   {
      super(x);
   }

    //Inner class for mouse listener of popup
    private class MyListMouseHandler extends BasicComboPopup.ListMouseHandler
    {
      public void mousePressed(MouseEvent e)
      {
        if(SwingUtilities.isRightMouseButton(e))
         showMenu(e);
        else super.mousePressed(e);
      }
      public void mouseReleased(MouseEvent e)
      {
        if(SwingUtilities.isRightMouseButton(e))
          manageItems.hide();
         else super.mouseReleased(e);
      }
    }//end of inner class for mouse listener of popup

    private void showMenu(MouseEvent e)
    {
      manageItems.show(this.list,e.getX(),e.getY());
    }

    //override so as to change mouse listener
    protected MouseListener createListMouseListener()
     {
        return (new MyListMouseHandler());
      }
 }//end of inner class for popup

   //override so as to change popup
   protected ComboPopup createPopup()
   {
     return new MyComboPopup(this.comboBox);
   }
  //override so as to insert menu
  MyComboUI(JPopupMenu x)
  {
    super();
    manageItems =x;
  }

}//end of inner class for ComboUI

  /**************************
   * Constructors of JComboBox
   **************************/
   public MComboBox(JPopupMenu x)
  {
   super();
   this.setUI(new MyComboUI(x));
  }
  public MComboBox(ComboBoxModel t, JPopupMenu x)
{
   super(t);
   this.setUI(new MyComboUI(x));
}
  public MComboBox(Vector v,JPopupMenu x)
 {
   super(v);
   this.setUI(new MyComboUI(x));
  }
  public MComboBox(Object [] o,JPopupMenu x)
 {
   super(o);
   this.setUI(new MyComboUI(x));
  }
/************************
 *End of constructors
 **********************/

 }

[Nathan Pruett]

"elefat" -

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