/**
* Creates and returns a new JMenu.
*
* @param title title of the menu
* @param mnemonicHelper an optional (can be null) mnemonic helper which will be used along with
* the title to set a mnemonic to the menu.
* @param menuListener an optional (can be null) menu listener which will listen to the events
* triggered by the menu.
*/
public static JMenu addMenu(
String title, MnemonicHelper mnemonicHelper, MenuListener menuListener) {
JMenu menu = new JMenu(title);
if (mnemonicHelper != null) {
char mnemonic = mnemonicHelper.getMnemonic(title);
if (mnemonic != 0) menu.setMnemonic(mnemonic);
}
if (menuListener != null) menu.addMenuListener(menuListener);
return menu;
}
private static JMenuItem addMenuItem(
JMenu menu, MuAction action, MnemonicHelper mnemonicHelper, boolean createCheckBoxMenuItem) {
JMenuItem menuItem =
createCheckBoxMenuItem ? new JCheckBoxMenuItem(action) : new JMenuItem(action);
if (mnemonicHelper != null) {
char mnemonic = mnemonicHelper.getMnemonic(action.getLabel());
if (mnemonic != 0) menuItem.setMnemonic(mnemonic);
}
// If the provided action has an icon, it would by default get displayed in the menu item.
// Since icons have nothing to do in menus, let's make sure the menu item has no icon.
menuItem.setIcon(null);
menu.add(menuItem);
return menuItem;
}
/**
* Creates a new JMenuItem or JCheckBoxMenuItem and adds it to the given JMenu.
*
* @param menu menu to add the menu item to.
* @param text text used by the menu item.
* @param mnemonicHelper an optional (can be null) mnemonic helper which will be used along with
* the item's text to set a mnemonic to the menu.
* @param accelerator an optional (can be null) keyboard shortcut used by the menu item.
* @param actionListener an optional (can be null) action listener which will listen to the events
* triggered by the menu item.
* @param createCheckBoxMenuItem specifies whether the menu item to be created is a
* JCheckBoxMenuItem or just a regular JMenuItem.
*/
private static JMenuItem addMenuItem(
JMenu menu,
String text,
MnemonicHelper mnemonicHelper,
KeyStroke accelerator,
ActionListener actionListener,
boolean createCheckBoxMenuItem) {
JMenuItem menuItem =
createCheckBoxMenuItem ? new JCheckBoxMenuItem(text, false) : new JMenuItem(text);
if (mnemonicHelper != null) {
char mnemonic = mnemonicHelper.getMnemonic(text);
if (mnemonic != 0) menuItem.setMnemonic(mnemonic);
}
if (accelerator != null) menuItem.setAccelerator(accelerator);
if (actionListener != null) menuItem.addActionListener(actionListener);
menu.add(menuItem);
return menuItem;
}