1 /*

     2  * Copyright 1998-2001 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package javax.swing.plaf.metal;

    27 

    28 import javax.swing.*;

    29 import javax.swing.plaf.basic.BasicCheckBoxUI;

    30 

    31 import java.awt.*;

    32 import java.awt.event.*;

    33 import javax.swing.plaf.*;

    34 import java.io.Serializable;

    35 

    36 

    37 /**

    38  * CheckboxUI implementation for MetalCheckboxUI

    39  * <p>

    40  * <strong>Warning:</strong>

    41  * Serialized objects of this class will not be compatible with

    42  * future Swing releases. The current serialization support is

    43  * appropriate for short term storage or RMI between applications running

    44  * the same version of Swing.  As of 1.4, support for long term storage

    45  * of all JavaBeans<sup><font size="-2">TM</font></sup>

    46  * has been added to the <code>java.beans</code> package.

    47  * Please see {@link java.beans.XMLEncoder}.

    48  *

    49  * @author Michael C. Albers

    50  *

    51  */

    52 public class MetalCheckBoxUI extends MetalRadioButtonUI {

    53 

    54     // NOTE: MetalCheckBoxUI inherts from MetalRadioButtonUI instead

    55     // of BasicCheckBoxUI because we want to pick up all the

    56     // painting changes made in MetalRadioButtonUI.

    57 

    58     private final static MetalCheckBoxUI checkboxUI = new MetalCheckBoxUI();

    59 

    60     private final static String propertyPrefix = "CheckBox" + ".";

    61 

    62     private boolean defaults_initialized = false;

    63 

    64     // ********************************

    65     //         Create PlAF

    66     // ********************************

    67     public static ComponentUI createUI(JComponent b) {

    68         return checkboxUI;

    69     }

    70 

    71     public String getPropertyPrefix() {

    72         return propertyPrefix;

    73     }

    74 

    75     // ********************************

    76     //          Defaults

    77     // ********************************

    78     public void installDefaults(AbstractButton b) {

    79         super.installDefaults(b);

    80         if(!defaults_initialized) {

    81             icon = UIManager.getIcon(getPropertyPrefix() + "icon");

    82             defaults_initialized = true;

    83         }

    84     }

    85 

    86     protected void uninstallDefaults(AbstractButton b) {

    87         super.uninstallDefaults(b);

    88         defaults_initialized = false;

    89     }

    90 

    91 }