private void computeContents() {
ButtonGroup bgroup = new ButtonGroup();
bgroup.add(nullItem);
removeAll();
add(minimize);
add(zoom);
add(close);
if (!persistentItems.isEmpty()) {
addSeparator();
for (JRadioButtonMenuItem item : persistentItems) {
bgroup.add(item);
add(item);
}
}
if (!transientItems.isEmpty()) {
addSeparator();
for (JRadioButtonMenuItem item : transientItems) {
bgroup.add(item);
add(item);
}
}
WindowMenuItemManager currentManager = WindowMenuManager.getCurrentManager();
if (currentManager != null) {
JRadioButtonMenuItem item = currentManager.getMenuItem(this);
if (item != null) {
item.setSelected(true);
}
}
}
public WindowMenu(JFrame owner) {
this.owner = owner;
WindowMenuManager.addMenu(this);
int menuMask = getToolkit().getMenuShortcutKeyMask();
minimize.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_M, menuMask));
close.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_W, menuMask));
if (owner == null) {
minimize.setEnabled(false);
zoom.setEnabled(false);
close.setEnabled(false);
} else {
minimize.addActionListener(myListener);
zoom.addActionListener(myListener);
close.addActionListener(myListener);
}
computeEnabled();
computeContents();
LocaleManager.addLocaleListener(myListener);
myListener.localeChanged();
}
public static void showPreferences() {
JFrame frame = MENU_MANAGER.getJFrame(true);
frame.setVisible(true);
}
void computeEnabled() {
WindowMenuItemManager currentManager = WindowMenuManager.getCurrentManager();
minimize.setEnabled(currentManager != null);
zoom.setEnabled(currentManager != null);
close.setEnabled(currentManager != null);
}