1 /*
   2  * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.java.swing.plaf.windows;
  27 
  28 import sun.swing.SwingUtilities2;
  29 import sun.awt.AppContext;
  30 
  31 import java.awt.Color;
  32 import java.awt.Graphics;
  33 
  34 import javax.swing.JComponent;
  35 import javax.swing.JLabel;
  36 import javax.swing.UIManager;
  37 
  38 import javax.swing.plaf.ComponentUI;
  39 
  40 import javax.swing.plaf.basic.BasicLabelUI;
  41 
  42 
  43 
  44 /**
  45  * Windows rendition of the component.
  46  * <p>
  47  * <strong>Warning:</strong>
  48  * Serialized objects of this class will not be compatible with
  49  * future Swing releases.  The current serialization support is appropriate
  50  * for short term storage or RMI between applications running the same
  51  * version of Swing.  A future release of Swing will provide support for
  52  * long term persistence.
  53  */
  54 public class WindowsLabelUI extends BasicLabelUI {
  55 
  56     private static final Object WINDOWS_LABEL_UI_KEY = new Object();
  57 
  58     // ********************************
  59     //          Create PLAF
  60     // ********************************
  61     public static ComponentUI createUI(JComponent c) {
  62         AppContext appContext = AppContext.getAppContext();
  63         WindowsLabelUI windowsLabelUI =
  64                 (WindowsLabelUI) appContext.get(WINDOWS_LABEL_UI_KEY);
  65         if (windowsLabelUI == null) {
  66             windowsLabelUI = new WindowsLabelUI();
  67             appContext.put(WINDOWS_LABEL_UI_KEY, windowsLabelUI);
  68         }
  69         return windowsLabelUI;
  70     }
  71 
  72     protected void paintEnabledText(JLabel l, Graphics g, String s,
  73                                     int textX, int textY) {
  74         int mnemonicIndex = l.getDisplayedMnemonicIndex();
  75         // W2K Feature: Check to see if the Underscore should be rendered.
  76         if (WindowsLookAndFeel.isMnemonicHidden() == true) {
  77             mnemonicIndex = -1;
  78         }
  79 
  80         g.setColor(l.getForeground());
  81         SwingUtilities2.drawStringUnderlineCharAt(l, g, s, mnemonicIndex,
  82                                                      textX, textY);
  83     }
  84 
  85     protected void paintDisabledText(JLabel l, Graphics g, String s,
  86                                      int textX, int textY) {
  87         int mnemonicIndex = l.getDisplayedMnemonicIndex();
  88         // W2K Feature: Check to see if the Underscore should be rendered.
  89         if (WindowsLookAndFeel.isMnemonicHidden() == true) {
  90             mnemonicIndex = -1;
  91         }
  92         if ( UIManager.getColor("Label.disabledForeground") instanceof Color &&
  93              UIManager.getColor("Label.disabledShadow") instanceof Color) {
  94             g.setColor( UIManager.getColor("Label.disabledShadow") );
  95             SwingUtilities2.drawStringUnderlineCharAt(l, g, s,
  96                                                          mnemonicIndex,
  97                                                          textX + 1, textY + 1);
  98             g.setColor( UIManager.getColor("Label.disabledForeground") );
  99             SwingUtilities2.drawStringUnderlineCharAt(l, g, s,
 100                                                          mnemonicIndex,
 101                                                          textX, textY);
 102         } else {
 103             Color background = l.getBackground();
 104             g.setColor(background.brighter());
 105             SwingUtilities2.drawStringUnderlineCharAt(l,g, s, mnemonicIndex,
 106                                                          textX + 1, textY + 1);
 107             g.setColor(background.darker());
 108             SwingUtilities2.drawStringUnderlineCharAt(l,g, s, mnemonicIndex,
 109                                                          textX, textY);
 110         }
 111     }
 112 }