001 /* BasicPopupMenuSeparatorUI.java --
002 Copyright (C) 2004 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package javax.swing.plaf.basic;
040
041 import java.awt.Color;
042 import java.awt.Dimension;
043 import java.awt.Graphics;
044 import java.awt.Rectangle;
045
046 import javax.swing.JComponent;
047 import javax.swing.JPopupMenu;
048 import javax.swing.SwingUtilities;
049 import javax.swing.plaf.ComponentUI;
050
051 /**
052 * The Basic Look and Feel UI delegate for JPopupMenu.Separator.
053 */
054 public class BasicPopupMenuSeparatorUI extends BasicSeparatorUI
055 {
056 /**
057 * Creates a new BasicPopupMenuSeparatorUI object.
058 */
059 public BasicPopupMenuSeparatorUI()
060 {
061 super();
062 }
063
064 /**
065 * Creates a new UI delegate for the given JComponent.
066 *
067 * @param c The JComponent to create a delegate for.
068 *
069 * @return A new BasicPopupMenuSeparatorUI
070 */
071 public static ComponentUI createUI(JComponent c)
072 {
073 return new BasicPopupMenuSeparatorUI();
074 }
075
076 /**
077 * The Popup Menu Separator has two lines. The top line will be
078 * painted using highlight color and the bottom using shadow color.
079 *
080 * @param g The Graphics object to paint with
081 * @param c The JComponent to paint.
082 */
083 public void paint(Graphics g, JComponent c)
084 {
085 if (! (c instanceof JPopupMenu.Separator))
086 return;
087
088 Rectangle r = new Rectangle();
089 SwingUtilities.calculateInnerArea(c, r);
090 Color saved = g.getColor();
091
092 int midAB = r.width / 2 + r.x;
093 int midAD = r.height / 2 + r.y;
094
095 g.setColor(highlight);
096 g.drawLine(r.x, midAD, r.x + r.width, midAD);
097
098 g.setColor(shadow);
099 g.drawLine(r.x, midAD + 1, r.x + r.width, midAD + 1);
100 }
101
102 /**
103 * This method returns the preferred size of the
104 * JComponent.
105 *
106 * @param c The JComponent to measure.
107 *
108 * @return The preferred size.
109 */
110 public Dimension getPreferredSize(JComponent c)
111 {
112 return super.getPreferredSize(c);
113 }
114 }