J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1995-2003 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 | package sun.awt.motif; |
| 26 | |
| 27 | import java.awt.*; |
| 28 | import java.awt.peer.*; |
| 29 | |
| 30 | import sun.awt.SunGraphicsCallback; |
| 31 | |
| 32 | class MPanelPeer extends MCanvasPeer implements PanelPeer { |
| 33 | |
| 34 | MPanelPeer() {} |
| 35 | |
| 36 | MPanelPeer(Component target) { |
| 37 | super(target); |
| 38 | } |
| 39 | |
| 40 | MPanelPeer(Component target, Object arg) { |
| 41 | super(target, arg); |
| 42 | } |
| 43 | |
| 44 | public Insets getInsets() { |
| 45 | return new Insets(0, 0, 0, 0); |
| 46 | } |
| 47 | |
| 48 | public void paint(Graphics g) { |
| 49 | super.paint(g); |
| 50 | SunGraphicsCallback.PaintHeavyweightComponentsCallback.getInstance(). |
| 51 | runComponents(((Container)target).getComponents(), g, |
| 52 | SunGraphicsCallback.LIGHTWEIGHTS | |
| 53 | SunGraphicsCallback.HEAVYWEIGHTS); |
| 54 | } |
| 55 | public void print(Graphics g) { |
| 56 | super.print(g); |
| 57 | SunGraphicsCallback.PrintHeavyweightComponentsCallback.getInstance(). |
| 58 | runComponents(((Container)target).getComponents(), g, |
| 59 | SunGraphicsCallback.LIGHTWEIGHTS | |
| 60 | SunGraphicsCallback.HEAVYWEIGHTS); |
| 61 | } |
| 62 | |
| 63 | public void setBackground(Color c) { |
| 64 | Component comp; |
| 65 | int i; |
| 66 | |
| 67 | Container cont = (Container) target; |
| 68 | synchronized(target.getTreeLock()) { |
| 69 | int n = cont.getComponentCount(); |
| 70 | for(i=0; i < n; i++) { |
| 71 | comp = cont.getComponent(i); |
| 72 | MComponentPeer peer = (MComponentPeer) MToolkit.targetToPeer(comp); |
| 73 | if (peer != null) { |
| 74 | Color color = comp.getBackground(); |
| 75 | if (color == null || color.equals(c)) { |
| 76 | peer.setBackground(c); |
| 77 | peer.pSetBackground(c); |
| 78 | } |
| 79 | if ((comp instanceof java.awt.List) || |
| 80 | (comp instanceof java.awt.TextArea) || |
| 81 | (comp instanceof java.awt.ScrollPane)) { |
| 82 | peer.pSetScrollbarBackground(c); |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | } |
| 87 | pSetBackground(c); |
| 88 | } |
| 89 | |
| 90 | public void setForeground(Color c) { |
| 91 | Component comp; |
| 92 | int i; |
| 93 | |
| 94 | Container cont = (Container) target; |
| 95 | synchronized(target.getTreeLock()) { |
| 96 | int n = cont.getComponentCount(); |
| 97 | for(i=0; i < n; i++) { |
| 98 | comp = cont.getComponent(i); |
| 99 | MComponentPeer peer = (MComponentPeer) MToolkit.targetToPeer(comp); |
| 100 | if (peer != null) { |
| 101 | Color color = comp.getForeground(); |
| 102 | if (color == null || color.equals(c)) { |
| 103 | peer.setForeground(c); |
| 104 | peer.pSetForeground(c); |
| 105 | } |
| 106 | if ((comp instanceof java.awt.List) || |
| 107 | (comp instanceof java.awt.TextArea) || |
| 108 | (comp instanceof java.awt.ScrollPane)) { |
| 109 | peer.pSetInnerForeground(c); |
| 110 | } |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | pSetForeground(c); |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * DEPRECATED: Replaced by getInsets(). |
| 119 | */ |
| 120 | public Insets insets() { |
| 121 | return getInsets(); |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Recursive method that handles the propagation of the displayChanged |
| 126 | * event into the entire hierarchy of peers. |
| 127 | * Unlike on win32, on X we don't worry about handling on-the-fly |
| 128 | * display settings changes, only windows being dragged across Xinerama |
| 129 | * screens. Thus, we only need to tell MCanvasPeers, not all |
| 130 | * MComponentPeers. |
| 131 | */ |
| 132 | private void recursiveDisplayChanged(Component c, int screenNum) { |
| 133 | if (c instanceof Container) { |
| 134 | Component children[] = ((Container)c).getComponents(); |
| 135 | for (int i = 0; i < children.length; ++i) { |
| 136 | recursiveDisplayChanged(children[i], screenNum); |
| 137 | } |
| 138 | } |
| 139 | ComponentPeer peer = c.getPeer(); |
| 140 | if (peer != null && peer instanceof MCanvasPeer) { |
| 141 | MCanvasPeer mPeer = (MCanvasPeer)peer; |
| 142 | mPeer.displayChanged(screenNum); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /* |
| 147 | * Often up-called from a MWindowPeer instance. |
| 148 | * Calls displayChanged() on all child canvas' peers. |
| 149 | * Recurses into Container children to ensure all canvases |
| 150 | * get the message. |
| 151 | */ |
| 152 | public void displayChanged(int screenNum) { |
| 153 | // Don't do super call because MWindowPeer has already updated its GC |
| 154 | |
| 155 | Component children[] = ((Container)target).getComponents(); |
| 156 | |
| 157 | for (int i = 0; i < children.length; i++) { |
| 158 | recursiveDisplayChanged(children[i], screenNum); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | protected boolean shouldFocusOnClick() { |
| 163 | // Return false if this container has children so in that case it won't |
| 164 | // be focused. Return true otherwise. |
| 165 | return ((Container)target).getComponentCount() == 0; |
| 166 | } |
| 167 | |
| 168 | private native void pEnsureIndex(ComponentPeer child, int index); |
| 169 | private native void pRestack(); |
| 170 | |
| 171 | private int restack(Container cont, int ind) { |
| 172 | for (int i = 0; i < cont.getComponentCount(); i++) { |
| 173 | Component comp = cont.getComponent(i); |
| 174 | if (!comp.isLightweight()) { |
| 175 | if (comp.getPeer() != null) { |
| 176 | pEnsureIndex(comp.getPeer(), ind++); |
| 177 | } |
| 178 | } |
| 179 | if (comp.isLightweight() && comp instanceof Container) { |
| 180 | ind = restack((Container)comp, ind); |
| 181 | } |
| 182 | } |
| 183 | return ind; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * @see java.awt.peer.ContainerPeer#restack |
| 188 | */ |
| 189 | public void restack() { |
| 190 | Container cont = (Container)target; |
| 191 | restack(cont, 0); |
| 192 | pRestack(); |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * @see java.awt.peer.ContainerPeer#isRestackSupported |
| 197 | */ |
| 198 | public boolean isRestackSupported() { |
| 199 | return true; |
| 200 | } |
| 201 | } |