JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2002, 2013, 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 javax.swing.plaf.synth;

import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.*;

/**
 * Provides the Synth L&F UI delegate for
 * {@link javax.swing.JRadioButton}.
 *
 * @author Jeff Dinkins
 * @since 1.7
 */
public class SynthRadioButtonUI extends SynthToggleButtonUI {

    // ********************************
    //        Create PLAF
    // ********************************
    /**
     * Creates a new UI object for the given component.
     *
     * @param b component to create UI object for
     * @return the UI object
     */
    public static ComponentUI createUI(JComponent b) {
        return new SynthRadioButtonUI();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected String getPropertyPrefix() {
        return "RadioButton.";
    }

    /**
     * Returns the Icon used in calculating the
     * preferred/minimum/maximum size.
     */
    @Override
    protected Icon getSizingIcon(AbstractButton b) {
        return getIcon(b);
    }

    @Override
    void paintBackground(SynthContext context, Graphics g, JComponent c) {
        context.getPainter().paintRadioButtonBackground(context, g, 0, 0,

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