Internal Frames and JMenuBar

[Cabaal]

Currently I have a program which uses a JDesktopPane within a Content Pane to display JInternalFrame's. I also have menu bar which is added to the content pane. The problem is as follows.
When you move a JInternalFrame, with the mouse, it is allowed to go above or "over" the Menu Bar. When you do this, then move the JInternalFrame "off" of the Menu bar the Menu Bar is erased and does not redraw. However, the menu still exists. When you click where the Menu should be, it redraws and displays.
What I really want is the JInternalFrames to not be able to be moved beyond the confines of the JDesktop. The JMenuBar appears to be "over" the JDesktop, thus the JInternalFrames can move above the Menu.
An thoughts?
Thanks,
Cabaal

 

[LeonTang]

Hi, very sorry but it worked for me so I can't get a solution for your problem... Here is the example that I did:-

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class JIFDemo extends JFrame implements MenuListener
{
private Container contentPane;
public JIFDemo()
{
contentPane = getContentPane();
setSize(300,300);
contentPane.setLayout(null);

addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);

JMenu menu = new JMenu("File"
JMenuBar menuBar = new JMenuBar();
JMenuItem fileMenu = new JMenuItem("Open"
menu.addMenuListener(this);
menu.add(fileMenu);
menuBar.add(menu);
setJMenuBar(menuBar);

JInternalFrame jif = new JInternalFrame();
jif.setSize(100,100);
jif.getContentPane().setLayout(null);
jif.setBounds(new Rectangle(10,10,100,100));
jif.show();

contentPane.add(jif, null);
}

public void menuSelected(MenuEvent e)
{
}

public void menuDeselected(MenuEvent e)
{
}

public void menuCanceled(MenuEvent e)
{
}

public static void main(String[] args)
{
JIFDemo jd = new JIFDemo();
jd.show();
}
}

Leon

 

[NickWest]

A good example and helpful web page is:

http://java.sun.com/docs/books/tutorial/uiswing/components/internalframe.html

I learnt it from there and didn't face the problems you are.

I hope you get them resolved.

 

[Cabaal]

I figured it out. Of course it boiled down to something simple. I was using some old code and the old code had the JMenuBar added to the content pane. As a result I was getting some odd behavior when I added it to the JFrame. Sorry, thanks for your suggestions though. I appreciate it. Thanks,
Cabaal