1 /* 2 * Copyright (c) 1997, 2004, 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 package com.sun.java.swing.plaf.motif; 26 27 import java.awt.*; 28 import java.awt.event.*; 29 import javax.swing.*; 30 import javax.swing.event.*; 31 import javax.swing.plaf.*; 32 import javax.swing.border.*; 33 import javax.swing.plaf.basic.*; 34 35 36 import javax.swing.plaf.basic.BasicMenuUI; 37 38 /** 39 * A Motif {@literal L&F} implementation of MenuUI. 40 * 41 * @author Georges Saab 42 * @author Rich Schiavi 43 */ 44 public class MotifMenuUI extends BasicMenuUI 45 { 46 47 public static ComponentUI createUI( JComponent x ) { 48 return new MotifMenuUI(); 49 } 50 51 // These should not be necessary because BasicMenuUI does this, 52 // and this class overrides createChangeListener. 53 // protected void installListeners() { 54 // super.installListeners(); 55 // changeListener = createChangeListener(menuItem); 56 // menuItem.addChangeListener(changeListener); 57 // } 58 // 59 // protected void uninstallListeners() { 60 // super.uninstallListeners(); 61 // menuItem.removeChangeListener(changeListener); 62 // } 63 64 protected ChangeListener createChangeListener(JComponent c) { 65 return new MotifChangeHandler((JMenu)c, this); 66 } 67 68 private boolean popupIsOpen(JMenu m,MenuElement me[]) { 69 int i; 70 JPopupMenu pm = m.getPopupMenu(); 71 72 for(i=me.length-1;i>=0;i--) { 73 if(me[i].getComponent() == pm) 74 return true; 75 } 76 return false; 77 } 78 79 protected MouseInputListener createMouseInputListener(JComponent c) { 80 return new MouseInputHandler(); 81 } 82 83 public class MotifChangeHandler extends ChangeHandler { 84 public MotifChangeHandler(JMenu m, MotifMenuUI ui) { 85 super(m, ui); 86 } 87 88 89 public void stateChanged(ChangeEvent e) { 90 JMenuItem c = (JMenuItem)e.getSource(); 91 if (c.isArmed() || c.isSelected()) { 92 c.setBorderPainted(true); 93 // c.repaint(); 94 } else { 95 c.setBorderPainted(false); 96 } 97 98 super.stateChanged(e); 99 } 100 } 101 102 protected class MouseInputHandler implements MouseInputListener { 103 public void mouseClicked(MouseEvent e) {} 104 public void mousePressed(MouseEvent e) { 105 MenuSelectionManager manager = MenuSelectionManager.defaultManager(); 106 JMenu menu = (JMenu)e.getComponent(); 107 if(menu.isEnabled()) { 108 if(menu.isTopLevelMenu()) { 109 if(menu.isSelected()) { 110 manager.clearSelectedPath(); 111 } else { 112 Container cnt = menu.getParent(); 113 if(cnt != null && cnt instanceof JMenuBar) { 114 MenuElement me[] = new MenuElement[2]; 115 me[0]=(MenuElement)cnt; 116 me[1]=menu; 117 manager.setSelectedPath(me); 118 } 119 } 120 } 121 122 MenuElement path[] = getPath(); 123 if (path.length > 0) { 124 MenuElement newPath[] = new MenuElement[path.length+1]; 125 System.arraycopy(path,0,newPath,0,path.length); 126 newPath[path.length] = menu.getPopupMenu(); 127 manager.setSelectedPath(newPath); 128 } 129 } 130 } 131 132 public void mouseReleased(MouseEvent e) { 133 MenuSelectionManager manager = 134 MenuSelectionManager.defaultManager(); 135 JMenuItem menuItem = (JMenuItem)e.getComponent(); 136 Point p = e.getPoint(); 137 if(!(p.x >= 0 && p.x < menuItem.getWidth() && 138 p.y >= 0 && p.y < menuItem.getHeight())) { 139 manager.processMouseEvent(e); 140 } 141 } 142 public void mouseEntered(MouseEvent e) {} 143 public void mouseExited(MouseEvent e) {} 144 public void mouseDragged(MouseEvent e) { 145 MenuSelectionManager.defaultManager().processMouseEvent(e); 146 } 147 public void mouseMoved(MouseEvent e) { } 148 } 149 150 }