J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.plaf.metal; |
| 27 | |
| 28 | import java.awt.*; |
| 29 | import javax.swing.*; |
| 30 | import javax.swing.plaf.ComponentUI; |
| 31 | import javax.swing.plaf.UIResource; |
| 32 | import javax.swing.plaf.basic.*; |
| 33 | |
| 34 | /** |
| 35 | * Metal implementation of <code>MenuBarUI</code>. This class is responsible |
| 36 | * for providing the metal look and feel for <code>JMenuBar</code>s. |
| 37 | * |
| 38 | * @see javax.swing.plaf.MenuBarUI |
| 39 | * @since 1.5 |
| 40 | */ |
| 41 | public class MetalMenuBarUI extends BasicMenuBarUI { |
| 42 | /** |
| 43 | * Creates the <code>ComponentUI</code> implementation for the passed |
| 44 | * in component. |
| 45 | * |
| 46 | * @param x JComponent to create the ComponentUI implementation for |
| 47 | * @return ComponentUI implementation for <code>x</code> |
| 48 | * @throws NullPointerException if <code>x</code> is null |
| 49 | */ |
| 50 | public static ComponentUI createUI(JComponent x) { |
| 51 | if (x == null) { |
| 52 | throw new NullPointerException("Must pass in a non-null component"); |
| 53 | } |
| 54 | return new MetalMenuBarUI(); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Configures the specified component appropriate for the metal look and |
| 59 | * feel. |
| 60 | * |
| 61 | * @param c the component where this UI delegate is being installed |
| 62 | * @throws NullPointerException if <code>c</code> is null. |
| 63 | */ |
| 64 | public void installUI(JComponent c) { |
| 65 | super.installUI(c); |
| 66 | MetalToolBarUI.register(c); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Reverses configuration which was done on the specified component during |
| 71 | * <code>installUI</code>. |
| 72 | * |
| 73 | * @param c the component where this UI delegate is being installed |
| 74 | * @throws NullPointerException if <code>c</code> is null. |
| 75 | */ |
| 76 | public void uninstallUI(JComponent c) { |
| 77 | super.uninstallUI(c); |
| 78 | MetalToolBarUI.unregister(c); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * If necessary paints the background of the component, then |
| 83 | * invokes <code>paint</code>. |
| 84 | * |
| 85 | * @param g Graphics to paint to |
| 86 | * @param c JComponent painting on |
| 87 | * @throws NullPointerException if <code>g</code> or <code>c</code> is |
| 88 | * null |
| 89 | * @see javax.swing.plaf.ComponentUI#update |
| 90 | * @see javax.swing.plaf.ComponentUI#paint |
| 91 | * @since 1.5 |
| 92 | */ |
| 93 | public void update(Graphics g, JComponent c) { |
| 94 | boolean isOpaque = c.isOpaque(); |
| 95 | if (g == null) { |
| 96 | throw new NullPointerException("Graphics must be non-null"); |
| 97 | } |
| 98 | if (isOpaque && (c.getBackground() instanceof UIResource) && |
| 99 | UIManager.get("MenuBar.gradient") != null) { |
| 100 | if (MetalToolBarUI.doesMenuBarBorderToolBar((JMenuBar)c)) { |
| 101 | JToolBar tb = (JToolBar)MetalToolBarUI. |
| 102 | findRegisteredComponentOfType(c, JToolBar.class); |
| 103 | if (tb.isOpaque() &&tb.getBackground() instanceof UIResource) { |
| 104 | MetalUtils.drawGradient(c, g, "MenuBar.gradient", 0, 0, |
| 105 | c.getWidth(), c.getHeight() + |
| 106 | tb.getHeight(), true); |
| 107 | paint(g, c); |
| 108 | return; |
| 109 | } |
| 110 | } |
| 111 | MetalUtils.drawGradient(c, g, "MenuBar.gradient", 0, 0, |
| 112 | c.getWidth(), c.getHeight(),true); |
| 113 | paint(g, c); |
| 114 | } |
| 115 | else { |
| 116 | super.update(g, c); |
| 117 | } |
| 118 | } |
| 119 | } |