Re: Anybody know how to set the color of the text in a disabled JMenuItem?

From:

Knute Johnson <september@knutejohnson.com>

Newsgroups:

comp.lang.java.gui

Date:

Fri, 19 Aug 2011 09:39:54 -0700

Message-ID:

<j2m3kp$1c3$1@dont-email.me>

On 8/19/2011 4:01 AM, John B. Matthews wrote:

In article<j2kfm1$tai$1@dont-email.me>, markspace<-@.> wrote:

On 8/18/2011 4:06 PM, Knute Johnson wrote:

Thanks for that but apparently I asked the wrong question. Why
can't I change the foreground color on my JMenuItem like you can?
I'm running 1.7 on Windows XP. It may be something different with
the LookAndFeel.

I'm running Java 7 on Windows 7. My LNF is just the default one
(might be Synth). I was running within NetBeans 7.0.1 IDE. Can't
say why it doesn't work for you.

Have the related UI defaults for MenuItem.* changed?

I don't know.

<http://tips4java.wordpress.com/2008/10/09/uimanager-defaults/>

I hadn't remembered that technique for changing the defaults but I only
want to change one JMenuItem's disabled foreground color. That defaults
do work just fine to change them all. I tried setting a new UI on the
JMenuItem but that doesn't seem to work either (see SSCCE below). When
I started this I didn't think it was going to take two days of messing
around with it :-).

import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;

public class test extends JFrame {
     public test() {
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

         JMenuBar mb = new JMenuBar();
         setJMenuBar(mb);

         JMenu menu = new JMenu("test");
         mb.add(menu);

         JMenuItem mi = new JMenuItem("This is default disabled");
         mi.setEnabled(false);
         menu.add(mi);

         class NewUI extends BasicMenuItemUI {
             public NewUI() {
                 disabledForeground = Color.RED;
             }
         };

         mi = new JMenuItem("This I want to be bright red");
         mi.setEnabled(false);
         mi.setUI(new NewUI());
         menu.add(mi);

         JPanel p = new JPanel();
         p.setPreferredSize(new Dimension(100,100));
         add(p);

         pack();
         setVisible(true);
     }

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 new test();
             }
         });
     }
}

Thanks,

--

Knute Johnson