Here you can find the source of useOptimizedCustomButtonPainting()
static boolean useOptimizedCustomButtonPainting()
//package com.java2s; /*//www . j ava 2 s . c o m * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved. * * Oracle and Java are registered trademarks of Oracle and/or its affiliates. * Other names may be trademarks of their respective owners. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common * Development and Distribution License("CDDL") (collectively, the * "License"). You may not use this file except in compliance with the * License. You can obtain a copy of the License at * http://www.netbeans.org/cddl-gplv2.html * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the * specific language governing permissions and limitations under the * License. When distributing the software, include this License Header * Notice in each file and include the License file at * nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the GPL Version 2 section of the License file that * accompanied this code. If applicable, add the following below the * License Header, with the fields enclosed by brackets [] replaced by * your own identifying information: * "Portions Copyrighted [year] [name of copyright owner]" * * Contributor(s): * * The Original Software is NetBeans. The Initial Developer of the Original * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun * Microsystems, Inc. All Rights Reserved. * * If you wish your version of this file to be governed by only the CDDL * or only the GPL Version 2, indicate your decision by adding * "[Contributor] elects to include this software in this distribution * under the [CDDL or GPL Version 2] license." If you do not indicate a * single choice of license, a recipient has the option to distribute * your version of this file under either the CDDL, the GPL Version 2 or * to extend the choice of license to its licensees as provided above. * However, if you add GPL Version 2 code and therefore, elected the GPL * Version 2 license, then the option applies only if the new code is * made subject to such option by the copyright holder. */ import java.awt.*; import javax.swing.UIManager; public class Main { /** * Painting the custom editor button is the most expensive thing we do on XP * and Aqua; if this flag is set, the button panel will build a bitmap and * blit it (this isn't appropriate for Metal, where the background color of * the button changes if it is selected */ private static Boolean useOptimizedCustomButtonPainting = null; /** * If true, ButtonPanel will build a bitmap of the custom editor button to * use when painting - huge amounts of painting time in XP and Aqua are used * scaling the L&F's background button bitmap (and the custom editor button * is always a fixed size), so this yields better performance when a large * number of custom editor buttons are displayed. */ static boolean useOptimizedCustomButtonPainting() { if (useOptimizedCustomButtonPainting == null) { if ("Windows".equals(UIManager.getLookAndFeel().getID())) { //NOI18N useOptimizedCustomButtonPainting = Boolean.valueOf(isXPTheme()); } else { useOptimizedCustomButtonPainting = Boolean .valueOf("Aqua".equals(UIManager.getLookAndFeel().getID())); } } return useOptimizedCustomButtonPainting.booleanValue(); } public static boolean isXPTheme() { Boolean isXP = (Boolean) Toolkit.getDefaultToolkit().getDesktopProperty("win.xpstyle.themeActive"); return (isXP == null) ? false : isXP.booleanValue(); } }