MetalLabelUI.java

/*
 * Copyright 1998-2005 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package javax.swing.plaf.metal;

import sun.swing.SwingUtilities2;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;


import java.awt.*;


/**
 * A Windows L&F implementation of LabelUI.  This implementation
 * is completely static, i.e. there's only one UIView implementation
 * that's shared by all JLabel objects.
 *
 * @author Hans Muller
 */

public class MetalLabelUI extends BasicLabelUI
{
   /**
    * The default <code>MetalLabelUI</code> instance. This field might
    * not be used. To change the default instance use a subclass which
    * overrides the <code>createUI</code> method, and place that class
    * name in defaults table under the key "LabelUI".
    */
    protected static MetalLabelUI metalLabelUI = new MetalLabelUI();
    private final static MetalLabelUI SAFE_METAL_LABEL_UI = new MetalLabelUI();


    public static ComponentUI createUI(JComponent c) {
        if (System.getSecurityManager() != null) {
            return SAFE_METAL_LABEL_UI;
        } else {
            return metalLabelUI;
        }
    }

    /**
     * Just paint the text gray (Label.disabledForeground) rather than
     * in the labels foreground color.
     *
     * @see #paint
     * @see #paintEnabledText
     */
    protected void paintDisabledText(JLabel l, Graphics g, String s, int textX, int textY)
    {
        int mnemIndex = l.getDisplayedMnemonicIndex();
        g.setColor(UIManager.getColor("Label.disabledForeground"));
        SwingUtilities2.drawStringUnderlineCharAt(l, g, s, mnemIndex,
                                                   textX, textY);
    }
}