| 1 | /* MetalMenuBarUI.java -- MenuBar UI for the Metal L&F |
| 2 | Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Classpath. |
| 5 | |
| 6 | GNU Classpath is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Classpath is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Classpath; see the file COPYING. If not, write to the |
| 18 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301 USA. |
| 20 | |
| 21 | Linking this library statically or dynamically with other modules is |
| 22 | making a combined work based on this library. Thus, the terms and |
| 23 | conditions of the GNU General Public License cover the whole |
| 24 | combination. |
| 25 | |
| 26 | As a special exception, the copyright holders of this library give you |
| 27 | permission to link this library with independent modules to produce an |
| 28 | executable, regardless of the license terms of these independent |
| 29 | modules, and to copy and distribute the resulting executable under |
| 30 | terms of your choice, provided that you also meet, for each linked |
| 31 | independent module, the terms and conditions of the license of that |
| 32 | module. An independent module is a module which is not derived from |
| 33 | or based on this library. If you modify this library, you may extend |
| 34 | this exception to your version of the library, but you are not |
| 35 | obligated to do so. If you do not wish to do so, delete this |
| 36 | exception statement from your version. */ |
| 37 | |
| 38 | |
| 39 | package javax.swing.plaf.metal; |
| 40 | |
| 41 | import java.awt.Graphics; |
| 42 | |
| 43 | import javax.swing.JComponent; |
| 44 | import javax.swing.SwingConstants; |
| 45 | import javax.swing.UIManager; |
| 46 | import javax.swing.plaf.ComponentUI; |
| 47 | import javax.swing.plaf.UIResource; |
| 48 | import javax.swing.plaf.basic.BasicMenuBarUI; |
| 49 | |
| 50 | /** |
| 51 | * A UI implementation for MenuBar in the Metal Look & Feel. |
| 52 | * |
| 53 | * @author Roman Kennke (kennke@aicas.com) |
| 54 | * |
| 55 | * @since 1.5 |
| 56 | */ |
| 57 | public class MetalMenuBarUI extends BasicMenuBarUI |
| 58 | { |
| 59 | /** |
| 60 | * Creates and returns a new instance of this UI for the specified component. |
| 61 | * |
| 62 | * @param c the component to create a UI for |
| 63 | * |
| 64 | * @return the UI for the component |
| 65 | */ |
| 66 | public static ComponentUI createUI(JComponent c) |
| 67 | { |
| 68 | return new MetalMenuBarUI(); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | /** |
| 73 | * If the property <code>MenuBar.gradient</code> is set, then a gradient |
| 74 | * is painted as background, otherwise the normal superclass behaviour is |
| 75 | * called. |
| 76 | */ |
| 77 | public void update(Graphics g, JComponent c) |
| 78 | { |
| 79 | int height = c.getHeight(); |
| 80 | if (c.isOpaque() |
| 81 | && UIManager.get("MenuBar.gradient") != null |
| 82 | && c.getBackground() instanceof UIResource |
| 83 | && height > 2) |
| 84 | { |
| 85 | MetalUtils.paintGradient(g, 0, 0, c.getWidth(), height - 2, |
| 86 | SwingConstants.VERTICAL, "MenuBar.gradient"); |
| 87 | |
| 88 | paint(g, c); |
| 89 | } |
| 90 | else |
| 91 | super.update(g, c); |
| 92 | } |
| 93 | |
| 94 | } |