JComboBox popupmenu

Question

Hi,
I have a JComboBox with DefaultComboBoxModel. Is there any way i can do this:
When the popup of the JComboBox is down and the user right-clicks on an item in its list, a second popup menu to appear next to the mouse (with options for the item). So far, i 've come up with the following code, extended from class JComboBox, but when the menu appears after the right click, the popup menu of the JComboBox is hidden.
Can someone please help me to fix this? Or does anyone knows a better way to do this or where to look for?
Adding a mouse listener applies only on the text field of the combobox and not its list...
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import java.applet.*;
import com.borland.jbcl.layout.*;
import javax.swing.border.*;
import javax.swing.plaf.basic.*;
import javax.swing.plaf.*;
import javax.swing.plaf.metal.*;
import javax.swing.event.*;
public class MComboBox extends JComboBox
private JPopupMenu manageItems;
* Inner class for list listener
private class MyComboUI extends MetalComboBoxUI
* List mouse handler
private class MyComboPopup extends BasicComboPopup
MyComboPopup(JComboBox x)
super(x);
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)==false)
super.mouseReleased(e);
private void showMenu(MouseEvent e)
manageItems.show(e.getComponent(),e.getX(),e.getY());
//override so as to change mouse listener
protected MouseListener createListMouseListener()
return (new MyListMouseHandler());
protected ComboPopup createPopup()
return new MyComboPopup(this.comboBox);
MyComboUI(JPopupMenu x)
super();
manageItems =x;
* Constructors
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));

Answer 1

Hi,
Adding the following listener:
myCombo.addMouseListener(new MouseAdapter()
public void mouseClicked(MouseEvent e)
System.out.println("Mouse clicked event");
is of no use, since it is never called when i click on the JComboBox (please tell me if it works and i have done a great mistake)
And when i add the listener to the JComboBox editor, it is called only when i click in its text field.
And when i override functions of MetalComboBoxUI,as in the code i posted, i manage to show the JPopupMenu i want, but its own popup hides!
I am really desperate. All i want to do is to show some options (edit, delete, etc) to the items of a JComboBox when the user right-clicks...