Re: disabling/changing rollover effect on buttons

From:
"John B. Matthews" <nospam@nospam.invalid>
Newsgroups:
comp.lang.java.gui
Date:
Tue, 05 May 2009 21:05:52 -0400
Message-ID:
<nospam-839413.21055105052009@news.aioe.org>
In article <4A00D7DE.9030500@yahoo.de>,
 lester psigal <lesterpsigal@yahoo.de> wrote:
[...]

This is a little annoying as the method must be called for each
JMenuItem separately but is much better than go along with unresolved
issues...;-) maybe i'll find a more convenient method for calling an
updateUI() on a bulk of components.


Alternatively, I think you can invoke UIManager.put() before
instantiating any components. In this example, the JTree icons in the
native system L&F are replaced by those from the Metal L&F. (Of course,
they may be the same L&F.)

<code>
package gui;

import java.awt.Color;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.RenderingHints;
import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.LookAndFeel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.metal.MetalLookAndFeel;

public class JTreeTest {

  public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
      //@Override
      public void run() {
        createGUI();
      }
    });
  }

  private static void createGUI() {
    final JFrame frame = new JFrame();
    frame.setLayout(new GridLayout(1, 0));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      try {
        LookAndFeel save = UIManager.getLookAndFeel();
        LookAndFeel laf = new MetalLookAndFeel();
        UIManager.setLookAndFeel(laf);
        Icon collapsed = (Icon) UIManager.get("Tree.collapsedIcon");
        Icon expanded = (Icon) UIManager.get("Tree.expandedIcon");
        UIManager.setLookAndFeel(save);
        UIManager.put("Tree.collapsedIcon", collapsed);
        UIManager.put("Tree.expandedIcon", expanded);
      } catch (UnsupportedLookAndFeelException ex) {
        ex.printStackTrace(System.err);
      }
    frame.add(new JTree());
    frame.add(new JTree());
    frame.add(new JTree());
    frame.pack();
    frame.setSize(400, 300);
    frame.setVisible(true);
  }
}
</code>

--
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>

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