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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2003, 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 javax.swing.plaf.basic; | |
| 27 | + | |
| 28 | +import sun.swing.DefaultLookup; | |
| 29 | +import sun.swing.UIAction; | |
| 30 | +import javax.swing.*; | |
| 31 | +import javax.swing.event.*; | |
| 32 | +import java.awt.Color; | |
| 33 | +import java.awt.Component; | |
| 34 | +import java.awt.Container; | |
| 35 | +import java.awt.Dimension; | |
| 36 | +import java.awt.Graphics; | |
| 37 | +import java.awt.Insets; | |
| 38 | +import java.awt.Point; | |
| 39 | +import java.awt.Rectangle; | |
| 40 | +import java.awt.event.*; | |
| 41 | +import java.beans.PropertyChangeEvent; | |
| 42 | +import java.beans.PropertyChangeListener; | |
| 43 | + | |
| 44 | +import javax.swing.border.*; | |
| 45 | +import javax.swing.plaf.*; | |
| 46 | + | |
| 47 | + | |
| 48 | +/** | |
| 49 | + * A default L&F implementation of MenuBarUI. This implementation | |
| 50 | + * is a "combined" view/controller. | |
| 51 | + * | |
| 52 | + * @author Georges Saab | |
| 53 | + * @author David Karlton | |
| 54 | + * @author Arnaud Weber | |
| 55 | + */ | |
| 56 | +public class BasicMenuBarUI extends MenuBarUI { | |
| 57 | + protected JMenuBar menuBar = null; | |
| 58 | + protected ContainerListener containerListener; | |
| 59 | + protected ChangeListener changeListener; | |
| 60 | + private Handler handler; | |
| 61 | + | |
| 62 | + public static ComponentUI createUI(JComponent x) { | |
| 63 | + return new BasicMenuBarUI(); | |
| 64 | + } | |
| 65 | + | |
| 66 | + static void loadActionMap(LazyActionMap map) { | |
| 67 | + map.put(new Actions(Actions.TAKE_FOCUS)); | |
| 68 | + } | |
| 69 | + | |
| 70 | + public void installUI(JComponent c) { | |
| 71 | + menuBar = (JMenuBar) c; | |
| 72 | + | |
| 73 | + installDefaults(); | |
| 74 | + installListeners(); | |
| 75 | + installKeyboardActions(); | |
| 76 | + | |
| 77 | + } | |
| 78 | + | |
| 79 | + protected void installDefaults() { | |
| 80 | + if (menuBar.getLayout() == null || | |
| 81 | + menuBar.getLayout() instanceof UIResource) { | |
| 82 | + menuBar.setLayout(new DefaultMenuLayout(menuBar,BoxLayout.LINE_AXIS)); | |
| 83 | + } | |
| 84 | + | |
| 85 | + LookAndFeel.installProperty(menuBar, "opaque", Boolean.TRUE); | |
| 86 | + LookAndFeel.installBorder(menuBar,"MenuBar.border"); | |
| 87 | + LookAndFeel.installColorsAndFont(menuBar, | |
| 88 | + "MenuBar.background", | |
| 89 | + "MenuBar.foreground", | |
| 90 | + "MenuBar.font"); | |
| 91 | + } | |
| 92 | + | |
| 93 | + protected void installListeners() { | |
| 94 | + containerListener = createContainerListener(); | |
| 95 | + changeListener = createChangeListener(); | |
| 96 | + | |
| 97 | + for (int i = 0; i < menuBar.getMenuCount(); i++) { | |
| 98 | + JMenu menu = menuBar.getMenu(i); | |
| 99 | + if (menu!=null) | |
| 100 | + menu.getModel().addChangeListener(changeListener); | |
| 101 | + } | |
| 102 | + menuBar.addContainerListener(containerListener); | |
| 103 | + } | |
| 104 | + | |
| 105 | + protected void installKeyboardActions() { | |
| 106 | + InputMap inputMap = getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW); | |
| 107 | + | |
| 108 | + SwingUtilities.replaceUIInputMap(menuBar, | |
| 109 | + JComponent.WHEN_IN_FOCUSED_WINDOW, inputMap); | |
| 110 | + | |
| 111 | + LazyActionMap.installLazyActionMap(menuBar, BasicMenuBarUI.class, | |
| 112 | + "MenuBar.actionMap"); | |
| 113 | + } | |
| 114 | + | |
| 115 | + InputMap getInputMap(int condition) { | |
| 116 | + if (condition == JComponent.WHEN_IN_FOCUSED_WINDOW) { | |
| 117 | + Object[] bindings = (Object[])DefaultLookup.get | |
| 118 | + (menuBar, this, "MenuBar.windowBindings"); | |
| 119 | + if (bindings != null) { | |
| 120 | + return LookAndFeel.makeComponentInputMap(menuBar, bindings); | |
| 121 | + } | |
| 122 | + } | |
| 123 | + return null; | |
| 124 | + } | |
| 125 | + | |
| 126 | + public void uninstallUI(JComponent c) { | |
| 127 | + uninstallDefaults(); | |
| 128 | + uninstallListeners(); | |
| 129 | + uninstallKeyboardActions(); | |
| 130 | + | |
| 131 | + menuBar = null; | |
| 132 | + } | |
| 133 | + | |
| 134 | + protected void uninstallDefaults() { | |
| 135 | + if (menuBar!=null) { | |
| 136 | + LookAndFeel.uninstallBorder(menuBar); | |
| 137 | + } | |
| 138 | + } | |
| 139 | + | |
| 140 | + protected void uninstallListeners() { | |
| 141 | + menuBar.removeContainerListener(containerListener); | |
| 142 | + | |
| 143 | + for (int i = 0; i < menuBar.getMenuCount(); i++) { | |
| 144 | + JMenu menu = menuBar.getMenu(i); | |
| 145 | + if (menu !=null) | |
| 146 | + menu.getModel().removeChangeListener(changeListener); | |
| 147 | + } | |
| 148 | + | |
| 149 | + containerListener = null; | |
| 150 | + changeListener = null; | |
| 151 | + handler = null; | |
| 152 | + } | |
| 153 | + | |
| 154 | + protected void uninstallKeyboardActions() { | |
| 155 | + SwingUtilities.replaceUIInputMap(menuBar, JComponent. | |
| 156 | + WHEN_IN_FOCUSED_WINDOW, null); | |
| 157 | + SwingUtilities.replaceUIActionMap(menuBar, null); | |
| 158 | + } | |
| 159 | + | |
| 160 | + protected ContainerListener createContainerListener() { | |
| 161 | + return getHandler(); | |
| 162 | + } | |
| 163 | + | |
| 164 | + protected ChangeListener createChangeListener() { | |
| 165 | + return getHandler(); | |
| 166 | + } | |
| 167 | + | |
| 168 | + private Handler getHandler() { | |
| 169 | + if (handler == null) { | |
| 170 | + handler = new Handler(); | |
| 171 | + } | |
| 172 | + return handler; | |
| 173 | + } | |
| 174 | + | |
| 175 | + | |
| 176 | + public Dimension getMinimumSize(JComponent c) { | |
| 177 | + return null; | |
| 178 | + } | |
| 179 | + | |
| 180 | + public Dimension getMaximumSize(JComponent c) { | |
| 181 | + return null; | |
| 182 | + } | |
| 183 | + | |
| 184 | + private class Handler implements ChangeListener, ContainerListener { | |
| 185 | + // | |
| 186 | + // ChangeListener | |
| 187 | + // | |
| 188 | + public void stateChanged(ChangeEvent e) { | |
| 189 | + int i,c; | |
| 190 | + for(i=0,c = menuBar.getMenuCount() ; i < c ; i++) { | |
| 191 | + JMenu menu = menuBar.getMenu(i); | |
| 192 | + if(menu !=null && menu.isSelected()) { | |
| 193 | + menuBar.getSelectionModel().setSelectedIndex(i); | |
| 194 | + break; | |
| 195 | + } | |
| 196 | + } | |
| 197 | + } | |
| 198 | + | |
| 199 | + // | |
| 200 | + // ContainerListener | |
| 201 | + // | |
| 202 | + public void componentAdded(ContainerEvent e) { | |
| 203 | + Component c = e.getChild(); | |
| 204 | + if (c instanceof JMenu) | |
| 205 | + ((JMenu)c).getModel().addChangeListener(changeListener); | |
| 206 | + } | |
| 207 | + public void componentRemoved(ContainerEvent e) { | |
| 208 | + Component c = e.getChild(); | |
| 209 | + if (c instanceof JMenu) | |
| 210 | + ((JMenu)c).getModel().removeChangeListener(changeListener); | |
| 211 | + } | |
| 212 | + } | |
| 213 | + | |
| 214 | + | |
| 215 | + private static class Actions extends UIAction { | |
| 216 | + private static final String TAKE_FOCUS = "takeFocus"; | |
| 217 | + | |
| 218 | + Actions(String key) { | |
| 219 | + super(key); | |
| 220 | + } | |
| 221 | + | |
| 222 | + public void actionPerformed(ActionEvent e) { | |
| 223 | + // TAKE_FOCUS | |
| 224 | + JMenuBar menuBar = (JMenuBar)e.getSource(); | |
| 225 | + MenuSelectionManager defaultManager = MenuSelectionManager.defaultManager(); | |
| 226 | + MenuElement me[]; | |
| 227 | + MenuElement subElements[]; | |
| 228 | + JMenu menu = menuBar.getMenu(0); | |
| 229 | + if (menu!=null) { | |
| 230 | + me = new MenuElement[3]; | |
| 231 | + me[0] = (MenuElement) menuBar; | |
| 232 | + me[1] = (MenuElement) menu; | |
| 233 | + me[2] = (MenuElement) menu.getPopupMenu(); | |
| 234 | + defaultManager.setSelectedPath(me); | |
| 235 | + } | |
| 236 | + } | |
| 237 | + } | |
| 238 | +} | |