p62xrbca7/javax/swing/plaf/metal/MetalLabelUI.java

/*
 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
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 *
 *
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 *
 *
 *
 */

package javax.swing.plaf.metal;

import sun.swing.SwingUtilities2;
import sun.awt.AppContext;

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 static final Object METAL_LABEL_UI_KEY = new Object();

    public static ComponentUI createUI(JComponent c) {
        if (System.getSecurityManager() != null) {
            AppContext appContext = AppContext.getAppContext();
            MetalLabelUI safeMetalLabelUI =
                    (MetalLabelUI) appContext.get(METAL_LABEL_UI_KEY);
            if (safeMetalLabelUI == null) {
                safeMetalLabelUI = new MetalLabelUI();
                appContext.put(METAL_LABEL_UI_KEY, safeMetalLabelUI);
            }
            return safeMetalLabelUI;
        }
        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);
    }
}