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Bottom JMenuItems go behind JTabbedPane that is directly below this main menu when the first tab in the JTabbedPane is selected

Posted on 2006-11-28
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Last Modified: 2010-07-27
I am working with a Java Swing GUI.  I have a JMenuBar on the main JFrame with JMenus and JMenuItems.  Directly below this menu bar I have a JTabbedPane.  When I expand the menus in the Main Menu the bottom menu items disappear behind the JTabbedPane when the first tab in the JTabbedPane is selected.  When the second tab in the JTabbedPane is selected everything is fine.  How do I fix this?

Thanks,
Dave
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Question by:gdkinney_2
6 Comments
 
LVL 10

Accepted Solution

by:
ADSLMark earned 250 total points
ID: 18030288
Example code:

import java.awt.*;
import javax.swing.*;

public class TabMenuExample extends JFrame
{
    public TabMenuExample()
    {
        this.setJMenuBar(CreateMenuBar());
        getContentPane().add(CreateTabbedPane());
        this.setSize(800,600);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    }

    public JTabbedPane CreateTabbedPane()
    {
        JTabbedPane tab = new JTabbedPane();

        for(int i=0;i<10;i++)
        {
            JPanel pnl = new JPanel();
            tab.addTab("Tab" + i, null, pnl, "Tab" + i);
        }
        tab.setSelectedIndex(0);
        return tab;
    }

    public JMenuBar CreateMenuBar()
    {
        JMenuBar menubar = new JMenuBar();
        JMenu menu = new JMenu("Testing Menus");

        for(int i=0;i<10;i++)
        {
            JMenuItem menuitem = new JMenuItem("Menu Items " + i);
            menu.add(menuitem);
        }
        menubar.add(menu);
        return menubar;

    }

    public static void main(String[] args)
    {
        TabMenuExample test = new TabMenuExample();
        test.setVisible(true);
    }
}

Works for me, using java version 1.5.0_09.

Mark
0
 
LVL 14

Assisted Solution

by:hoomanv
hoomanv earned 250 total points
ID: 18031375
The problem is that you are mixing awt (heavy weight) and swing (light weight) components and that heavies win the competition and stay on top
http://java.sun.com/products/jfc/tsc/articles/mixing/
0
 

Author Comment

by:gdkinney_2
ID: 18031670
hoomany,
   I think you are correct we are using a GOTS product that I believe has AWT components.  I emailed the developers today to confirm this.  I'll check back tomorrow if my assumption is correct.
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