/* * Copyright (c) 2004, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.swing; import java.awt.Color;import javax.swing.plaf.ColorUIResource; /** * A subclass of ColorUIResource that wraps an alternate color * for use during printing. Useful to replace color values that * may look poor in printed output. * * @author Shannon Hickey * */public class PrintColorUIResource extends ColorUIResource {     /** The color to use during printing */    private Color printColor;     /**     * Construct an instance for the given RGB value and     * alternate color to use during printing.     *     * @param rgb the color rgb value     * @param printColor the alternate color for printing     */    public PrintColorUIResource(int rgb, Color printColor) {        super(rgb);        this.printColor = printColor;    }     /**     * Return the color to use during printing. If no alternate     * color was specified on construction, this method will     * return <code>this</code>.     *     * @return the color to use during printing     */    public Color getPrintColor() {        return ((printColor != null) ? printColor : this);    }     /**     * Replaces this object with a plain {@code ColorUIResource} during     * serialization. Since {@code PrintColorUIResource} resides in the     * sun.swing package, access can be disallowed to it by a security     * manager. When access is disallowed, deserialization of any object     * with reference to a {@code PrintColorUIResource} fails.     * <p>     * Since {@code PrintColorUIResource) is used only by Swing's look     * and feels, and we know that UI supplied colors are replaced after     * deserialization when the UI is re-installed, the only important     * aspect of the {@code PrintColorUIResource} that needs to be     * persisted is the fact that it is a {@code ColorUIResource}. As     * such, we can avoid the problem outlined above by replacing     * the problematic {@code PrintColorUIResource} with a plain     * {@code ColorUIResource}.     * <p>     * Note: As a result of this method, it is not possible to write     * a {@code PrintColorUIResource} to a stream and then read     * back a {@code PrintColorUIResource}. This is acceptable since we     * don't have a requirement for that in Swing.     */    private Object writeReplace() {        return new ColorUIResource(this);    }}