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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package javax.swing.plaf.basic;

import sun.awt.AppContext;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
import javax.swing.plaf.*;
import java.io.Serializable;


CheckboxUI implementation for BasicCheckboxUI

Warning:
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.  As of 1.4, support for long term storage
of all JavaBeans
has been added to the java.beans package. Please see XMLEncoder. 
Author:
Jeff Dinkins/**
 * CheckboxUI implementation for BasicCheckboxUI
 * <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.  As of 1.4, support for long term storage
 * of all JavaBeans
 * has been added to the <code>java.beans</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @author Jeff Dinkins
 */
@SuppressWarnings("serial") // Same-version serialization only
public class BasicCheckBoxUI extends BasicRadioButtonUI {

    private static final Object BASIC_CHECK_BOX_UI_KEY = new Object();

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

    // ********************************
    //            Create PLAF
    // ********************************

    
Constructs a BasicCheckBoxUI. /**
     * Constructs a {@code BasicCheckBoxUI}.
     */
    public BasicCheckBoxUI() {}

    
Returns an instance of BasicCheckBoxUI. 
Params:
b – a component
Returns:
an instance of BasicCheckBoxUI/**
     * Returns an instance of {@code BasicCheckBoxUI}.
     *
     * @param b a component
     * @return an instance of {@code BasicCheckBoxUI}
     */
    public static ComponentUI createUI(JComponent b) {
        AppContext appContext = AppContext.getAppContext();
        BasicCheckBoxUI checkboxUI =
                (BasicCheckBoxUI) appContext.get(BASIC_CHECK_BOX_UI_KEY);
        if (checkboxUI == null) {
            checkboxUI = new BasicCheckBoxUI();
            appContext.put(BASIC_CHECK_BOX_UI_KEY, checkboxUI);
        }
        return checkboxUI;
    }

    public String getPropertyPrefix() {
        return propertyPrefix;
    }

}