Java Utililty Methods JMenu

List of utility methods to do JMenu

  1. HOME
  2. Java
  3. J
  4. JMenu

Description

The list of methods to do JMenu are organized into topic(s).

Method

JMenuItemmenuItem(JMenu parent, String label, Object... attrs)
Construct a new JMenuItem then add it to an existing JMenu. 
JMenuItem m = new JMenuItem(label, null);
int accelMask = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
boolean hasMnemonic = false;
for (Object x : attrs) {
    if (x instanceof Character || x instanceof Integer) {
        int k = (x instanceof Character) ? ((int) ((Character) x)) : ((Integer) x).intValue();
        if (k < 0)
            continue;
...
voidremoveAllSeparators(JMenu menu)
Convenience method that calls the method removeAllSeparators(JPopupMenu) with the JPopupMenu of the given menu as parameter. 
removeAllSeparators(menu.getPopupMenu());
voidremoveTopAndBottomSeparators(JMenu menu)
Convenience method that calls the method removeTopAndBottomSeparators(JPopupMenu) with the JPopupMenu of the given menu as parameter. 
removeTopAndBottomSeparators(menu.getPopupMenu());
voidsetChildrenEnabled(JMenu menu, boolean enabled)
Set the enabled state of a JMenu and all its children. 
Component child[] = menu.getMenuComponents();
int num_children = child.length;
Component me = menu.getComponent();
if (me instanceof JComponent) {
    ((JComponent) me).setEnabled(enabled);
for (int i = 0; i < num_children; i++) {
    if (child[i] instanceof JComponent) {
...
voidtearDownMenu(JMenu menu)
Totally rip a menu apart, recursively. 
Vector<JMenuItem> componentsToRemove = new Vector<JMenuItem>();
for (int i = 0; i < menu.getItemCount(); i++)
    componentsToRemove.add(menu.getItem(i));
for (JMenuItem c : componentsToRemove)
    if (c == null)
        ;
    else if (c instanceof JMenu)
        tearDownMenu((JMenu) c);
...