mnemonics are not getting focus for the menubar

[Venkateshwarlu Narsing]

problem: mnemonics are not getting focus for the menubar

scenario: I have one JFrame and one JInternalFrame. The JFrame has a menubar with mnemonics assigned to every menu. Mnemonics are working fine when the JInternalFrame is opend. But after closing the JInternalFrame the mnemonics for the menubar are not working. That is menus are not getting focus when I use mnemonics like ALT+F

Any help heighly appriciated

[Craig Wood]

Seems to work in j2se 1.6.0_07

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class MnemonicTest {
    private JDesktopPane getContent() {
        JInternalFrame jif = new JInternalFrame("title",
                                 true, true, true, true);
        jif.setSize(300,300);
        jif.setLocation(25, 25);
        jif.setVisible(true);
        JDesktopPane desktop = new JDesktopPane();
        desktop.add(jif);
        return desktop;
    }
 
    /** Copied from menu page in the java tutorial. */
    private JMenuBar getMenuBar() {
        //Create the menu bar.
        JMenuBar menuBar = new JMenuBar();
 
        //Build the first menu.
        JMenu menu = new JMenu("A Menu");
        menu.setMnemonic(KeyEvent.VK_A);
        menu.getAccessibleContext().setAccessibleDescription(
            "The only menu in this program that has menu items");
        menuBar.add(menu);
 
        //a group of JMenuItems
        JMenuItem menuItem = new JMenuItem("A text-only menu item",
            KeyEvent.VK_T);
        menuItem.setAccelerator(KeyStroke.getKeyStroke(
            KeyEvent.VK_1, ActionEvent.ALT_MASK));
        menuItem.getAccessibleContext().setAccessibleDescription(
            "This doesn't really do anything");
        menu.add(menuItem);
 
        menuItem = new JMenuItem("Both text and icon",
            new ImageIcon("images/middle.gif"));
        menuItem.setMnemonic(KeyEvent.VK_B);
        menu.add(menuItem);
 
        menuItem = new JMenuItem(new ImageIcon("images/middle.gif"));
        menuItem.setMnemonic(KeyEvent.VK_D);
        menu.add(menuItem);
 
        //a group of radio button menu items
        menu.addSeparator();
        ButtonGroup group = new ButtonGroup();
        JRadioButtonMenuItem rbMenuItem =
            new JRadioButtonMenuItem("A radio button menu item");
        rbMenuItem.setSelected(true);
        rbMenuItem.setMnemonic(KeyEvent.VK_R);
        group.add(rbMenuItem);
        menu.add(rbMenuItem);
 
        rbMenuItem = new JRadioButtonMenuItem("Another one");
        rbMenuItem.setMnemonic(KeyEvent.VK_O);
        group.add(rbMenuItem);
        menu.add(rbMenuItem);
 
        //a group of check box menu items
        menu.addSeparator();
        JCheckBoxMenuItem cbMenuItem =
            new JCheckBoxMenuItem("A check box menu item");
        cbMenuItem.setMnemonic(KeyEvent.VK_C);
        menu.add(cbMenuItem);
 
        cbMenuItem = new JCheckBoxMenuItem("Another one");
        cbMenuItem.setMnemonic(KeyEvent.VK_H);
        menu.add(cbMenuItem);
 
        //a submenu
        menu.addSeparator();
        JMenu submenu = new JMenu("A submenu");
        submenu.setMnemonic(KeyEvent.VK_S);
 
        menuItem = new JMenuItem("An item in the submenu");
        menuItem.setAccelerator(KeyStroke.getKeyStroke(
            KeyEvent.VK_2, ActionEvent.ALT_MASK));
        submenu.add(menuItem);
 
        menuItem = new JMenuItem("Another item");
        submenu.add(menuItem);
        menu.add(submenu);
 
        //Build second menu in the menu bar.
        menu = new JMenu("Another Menu");
        menu.setMnemonic(KeyEvent.VK_N);
        menu.getAccessibleContext().setAccessibleDescription(
            "This menu does nothing");
        menuBar.add(menu);
        return menuBar;
    }
 
    public static void main(String[] args) {
        MnemonicTest test = new MnemonicTest();
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setJMenuBar(test.getMenuBar());
        f.add(test.getContent());
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
}