/*

 * Copyright (c) 1997, 1998, 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

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 */

package com.sun.java.swing.plaf.motif;

import sun.awt.AppContext;

import javax.swing.*;

import javax.swing.plaf.*;

import java.awt.*;

/**

 * MotifCheckBox implementation

 * <p>

 * <strong>Warning:</strong>

 * Serialized objects of this class will not be compatible with

 * future Swing releases.  The current serialization support is appropriate

 * for short term storage or RMI between applications running the same

 * version of Swing.  A future release of Swing will provide support for

 * long term persistence.

 *

 * @author Rich Schiavi

 */

public class MotifCheckBoxUI extends MotifRadioButtonUI {

    private static final Object MOTIF_CHECK_BOX_UI_KEY = new Object();

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

    private boolean defaults_initialized = false;

    // ********************************

    //         Create PLAF

    // ********************************

    public static ComponentUI createUI(JComponent c) {

        AppContext appContext = AppContext.getAppContext();

        MotifCheckBoxUI motifCheckBoxUI =

                (MotifCheckBoxUI) appContext.get(MOTIF_CHECK_BOX_UI_KEY);

        if (motifCheckBoxUI == null) {

            motifCheckBoxUI = new MotifCheckBoxUI();

            appContext.put(MOTIF_CHECK_BOX_UI_KEY, motifCheckBoxUI);

        }

        return motifCheckBoxUI;

    }

    public String getPropertyPrefix() {

        return propertyPrefix;

    }

    // ********************************

    //          Defaults

    // ********************************

    public void installDefaults(AbstractButton b) {

        super.installDefaults(b);

        if(!defaults_initialized) {

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

            defaults_initialized = true;

        }

    }

    protected void uninstallDefaults(AbstractButton b) {

        super.uninstallDefaults(b);

        defaults_initialized = false;

    }

}