001 /* MetalInternalFrameUI.java
002 Copyright (C) 2005 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.metal;
040
041 import java.beans.PropertyChangeEvent;
042 import java.beans.PropertyChangeListener;
043
044 import javax.swing.ActionMap;
045 import javax.swing.JComponent;
046 import javax.swing.JInternalFrame;
047 import javax.swing.SwingUtilities;
048 import javax.swing.plaf.ComponentUI;
049 import javax.swing.plaf.basic.BasicInternalFrameUI;
050
051 /**
052 * A UI delegate for the {@link JInternalFrame} component.
053 */
054 public class MetalInternalFrameUI
055 extends BasicInternalFrameUI
056 {
057 /**
058 * The key (<code>JInternalFrame.isPalette</code>) for the client property
059 * that controls whether the internal frame is displayed using the palette
060 * style.
061 */
062 protected static String IS_PALETTE = "JInternalFrame.isPalette";
063
064 /**
065 * Constructs a new instance of <code>MetalInternalFrameUI</code>.
066 *
067 * @param frame the frame.
068 */
069 public MetalInternalFrameUI(JInternalFrame frame)
070 {
071 super(frame);
072 }
073
074 /**
075 * Returns an instance of <code>MetalInternalFrameUI</code>.
076 *
077 * @param component the internal frame.
078 *
079 * @return an instance of <code>MetalInternalFrameUI</code>.
080 */
081 public static ComponentUI createUI(JComponent component)
082 {
083 return new MetalInternalFrameUI((JInternalFrame) component);
084 }
085
086 /**
087 * Sets the fields and properties for the component.
088 *
089 * @param c the component.
090 */
091 public void installUI(JComponent c)
092 {
093 super.installUI(c);
094 JInternalFrame f = (JInternalFrame) c;
095 boolean isPalette = false;
096 Boolean p = (Boolean) f.getClientProperty(IS_PALETTE);
097 if (p != null)
098 isPalette = p.booleanValue();
099 setPalette(isPalette);
100 }
101
102 /**
103 * Creates and returns the component that will be used for the north pane
104 * of the {@link JInternalFrame}.
105 *
106 * @param w the internal frame.
107 *
108 * @return A new instance of {@link MetalInternalFrameTitlePane}.
109 */
110 protected JComponent createNorthPane(JInternalFrame w)
111 {
112 titlePane = new MetalInternalFrameTitlePane(w);
113 return titlePane;
114 }
115
116 /**
117 * Sets the state of the {@link JInternalFrame} to reflect whether or not
118 * it is using the palette style. When a frame is displayed as a palette,
119 * it uses a different border and the title pane is drawn differently.
120 *
121 * @param isPalette use the palette style?
122 */
123 public void setPalette(boolean isPalette)
124 {
125 MetalInternalFrameTitlePane title = (MetalInternalFrameTitlePane) northPane;
126 title.setPalette(isPalette);
127 if (isPalette)
128 frame.setBorder(new MetalBorders.PaletteBorder());
129 else
130 frame.setBorder(new MetalBorders.InternalFrameBorder());
131 }
132
133 /** A listener that is used to handle IS_PALETTE property changes. */
134 private PropertyChangeListener paletteListener;
135
136 /**
137 * Adds the required listeners.
138 */
139 protected void installListeners()
140 {
141 super.installListeners();
142 paletteListener = new PropertyChangeListener()
143 {
144 public void propertyChange(PropertyChangeEvent e)
145 {
146 if (e.getPropertyName().equals(IS_PALETTE))
147 {
148 if (Boolean.TRUE.equals(e.getNewValue()))
149 setPalette(true);
150 else
151 setPalette(false);
152 }
153 }
154 };
155 frame.addPropertyChangeListener(paletteListener);
156 }
157
158 /**
159 * Removes the listeners used.
160 */
161 protected void uninstallListeners()
162 {
163 super.uninstallListeners();
164 frame.removePropertyChangeListener(IS_PALETTE, paletteListener);
165 paletteListener = null;
166 }
167
168 /**
169 * Installs keyboard actions. This is overridden to remove the
170 * <code>showSystemMenu</code> Action that is installed by the
171 * <code>BasicInternalFrameUI</code>, since Metal JInternalFrames don't have
172 * a system menu.
173 */
174 protected void installKeyboardActions()
175 {
176 super.installKeyboardActions();
177 ActionMap am = SwingUtilities.getUIActionMap(frame);
178 if (am != null)
179 {
180 am.remove("showSystemMenu");
181 }
182 }
183 }