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Java example source code file (MotifRadioButtonUI.java)

This example Java source code file (MotifRadioButtonUI.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

appcontext, awt, basicradiobuttonui, border, color, componentui, dimension, gui, motif_radio_button_ui_key, motifradiobuttonui, object, plaf, rectangle, swing

The MotifRadioButtonUI.java Java example source code

/*
 * Copyright (c) 1997, 2003, 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 com.sun.java.swing.plaf.motif;

import sun.awt.AppContext;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.basic.BasicRadioButtonUI;

import javax.swing.plaf.*;

import java.awt.*;

/**
 * RadioButtonUI implementation for MotifRadioButtonUI
 * <p>
 * <strong>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.  A future release of Swing will provide support for
 * long term persistence.
 *
 * @author Rich Schiavi
 */
public class MotifRadioButtonUI extends BasicRadioButtonUI {

    private static final Object MOTIF_RADIO_BUTTON_UI_KEY = new Object();

    protected Color focusColor;

    private boolean defaults_initialized = false;

    // ********************************
    //         Create PLAF
    // ********************************
    public static ComponentUI createUI(JComponent c) {
        AppContext appContext = AppContext.getAppContext();
        MotifRadioButtonUI motifRadioButtonUI =
                (MotifRadioButtonUI) appContext.get(MOTIF_RADIO_BUTTON_UI_KEY);
        if (motifRadioButtonUI == null) {
            motifRadioButtonUI = new MotifRadioButtonUI();
            appContext.put(MOTIF_RADIO_BUTTON_UI_KEY, motifRadioButtonUI);
        }
        return motifRadioButtonUI;
    }

    // ********************************
    //          Install Defaults
    // ********************************
    public void installDefaults(AbstractButton b) {
        super.installDefaults(b);
        if(!defaults_initialized) {
            focusColor = UIManager.getColor(getPropertyPrefix() + "focus");
            defaults_initialized = true;
        }
    }

    protected void uninstallDefaults(AbstractButton b) {
        super.uninstallDefaults(b);
        defaults_initialized = false;
    }

    // ********************************
    //          Default Accessors
    // ********************************

    protected Color getFocusColor() {
        return focusColor;
    }

    // ********************************
    //         Paint Methods
    // ********************************
    protected void paintFocus(Graphics g, Rectangle t, Dimension d){
        g.setColor(getFocusColor());
        g.drawRect(0,0,d.width-1,d.height-1);
    }

}

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