JPopupMenu or JMenu - neither is quite what I'm after.

[Harold Lime]

I'd like a little popup menu to appear when I click on a button, I would like the menu to highlight the background of each menu item as the mouse moves over it.

This doesn't happen with a JPopupMenu, it works with a JMenu but I can't figure out how to trigger the menu without having a JMenuBar.

So, is there a way of making the JPopupMenu highlight elements? Or way to create a JMenu without a menu bar?

I've tried, menu.doClick(0); but that only works when the menu bar is also present.

[Paul Clapham]

That's odd. When I run the PopupMenu Demo from the How to Use Menus tutorial, it behaves exactly the way you say you want it to behave.

[Harold Lime]

When running that sample code I can't seem to see a popup menu, just the two menus at the top.

http://img522.imageshack.us/img522/6218/menuk.jpg

My code (below) works but the menu items don't highlight when I move the mouse over each menu item.

		final JPopupMenu popup;

		popup = new JPopupMenu();
		JMenuItem menuItem = new JMenuItem("A popup menu item");
		JMenuItem menuItem2 = new JMenuItem("A popup menu item");
		JMenuItem menuItem3 = new JMenuItem("A popup menu item");
		popup.add(menuItem);
		popup.add(menuItem2);
		popup.add(menuItem3);
		popup.setLocation(100,40);

		JButton button = new JButton("Show");
		ActionListener al = new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				if(popup.isVisible()) {
					popup.setVisible(false);
				} else {
					popup.setVisible(true);
				}
			}
		};

		button.addActionListener(al);
		button.setBounds(0,0,100,40);
		getContentPane().add(button);

[Paul Clapham]

Harold Lime wrote:When running that sample code I can't seem to see a popup menu, just the two menus at the top.

Um, you right-click the blank area and you get a popup menu.

[Harold Lime]

Fixed.

It seems that not supplying a component to:

  JPopupMenu.show(Component invoker, int x, int y)   

stops the menu items from highlighting.

Thanks

[Paul Clapham]

Hmm. That wouldn't have been my first guess. Or even in the top ten guesses. Anyway glad you got it fixed.

[Brian Cole]

Harold Lime wrote:Fixed.

It seems that not supplying a component to:

JPopupMenu.show(Component invoker, int x, int y)

stops the menu items from highlighting.

FYI, you may continue to use setVisible(true) if you simply call popup.setInvoker(button) first.