?? metalcheckboxui.java
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/* * @(#)MetalCheckBoxUI.java 1.18 03/12/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */package javax.swing.plaf.metal;import javax.swing.*;import javax.swing.plaf.basic.BasicCheckBoxUI;import java.awt.*;import java.awt.event.*;import javax.swing.plaf.*;import java.io.Serializable;/** * CheckboxUI implementation for MetalCheckboxUI * <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<sup><font size="-2">TM</font></sup> * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @version 1.18 12/19/03 * @author Michael C. Albers * */public class MetalCheckBoxUI extends MetalRadioButtonUI { // NOTE: MetalCheckBoxUI inherts from MetalRadioButtonUI instead // of BasicCheckBoxUI because we want to pick up all the // painting changes made in MetalRadioButtonUI. private final static MetalCheckBoxUI checkboxUI = new MetalCheckBoxUI(); private final static String propertyPrefix = "CheckBox" + "."; private boolean defaults_initialized = false; // ******************************** // Create PlAF // ******************************** public static ComponentUI createUI(JComponent b) { return checkboxUI; } 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; }}
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