Source Code Cross Referenced for MPanelPeer.java in  » 6.0-JDK-Platform » solaris » sun » awt » motif » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Platform » solaris » sun.awt.motif 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 1995-2003 Sun Microsystems, Inc.  All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004:         *
005:         * This code is free software; you can redistribute it and/or modify it
006:         * under the terms of the GNU General Public License version 2 only, as
007:         * published by the Free Software Foundation.  Sun designates this
008:         * particular file as subject to the "Classpath" exception as provided
009:         * by Sun in the LICENSE file that accompanied this code.
010:         *
011:         * This code is distributed in the hope that it will be useful, but WITHOUT
012:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014:         * version 2 for more details (a copy is included in the LICENSE file that
015:         * accompanied this code).
016:         *
017:         * You should have received a copy of the GNU General Public License version
018:         * 2 along with this work; if not, write to the Free Software Foundation,
019:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020:         *
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022:         * CA 95054 USA or visit www.sun.com if you need additional information or
023:         * have any questions.
024:         */
025:        package sun.awt.motif;
026:
027:        import java.awt.*;
028:        import java.awt.peer.*;
029:
030:        import sun.awt.SunGraphicsCallback;
031:
032:        class MPanelPeer extends MCanvasPeer implements  PanelPeer {
033:
034:            MPanelPeer() {
035:            }
036:
037:            MPanelPeer(Component target) {
038:                super (target);
039:            }
040:
041:            MPanelPeer(Component target, Object arg) {
042:                super (target, arg);
043:            }
044:
045:            public Insets getInsets() {
046:                return new Insets(0, 0, 0, 0);
047:            }
048:
049:            public void paint(Graphics g) {
050:                super .paint(g);
051:                SunGraphicsCallback.PaintHeavyweightComponentsCallback
052:                        .getInstance().runComponents(
053:                                ((Container) target).getComponents(),
054:                                g,
055:                                SunGraphicsCallback.LIGHTWEIGHTS
056:                                        | SunGraphicsCallback.HEAVYWEIGHTS);
057:            }
058:
059:            public void print(Graphics g) {
060:                super .print(g);
061:                SunGraphicsCallback.PrintHeavyweightComponentsCallback
062:                        .getInstance().runComponents(
063:                                ((Container) target).getComponents(),
064:                                g,
065:                                SunGraphicsCallback.LIGHTWEIGHTS
066:                                        | SunGraphicsCallback.HEAVYWEIGHTS);
067:            }
068:
069:            public void setBackground(Color c) {
070:                Component comp;
071:                int i;
072:
073:                Container cont = (Container) target;
074:                synchronized (target.getTreeLock()) {
075:                    int n = cont.getComponentCount();
076:                    for (i = 0; i < n; i++) {
077:                        comp = cont.getComponent(i);
078:                        MComponentPeer peer = (MComponentPeer) MToolkit
079:                                .targetToPeer(comp);
080:                        if (peer != null) {
081:                            Color color = comp.getBackground();
082:                            if (color == null || color.equals(c)) {
083:                                peer.setBackground(c);
084:                                peer.pSetBackground(c);
085:                            }
086:                            if ((comp instanceof  java.awt.List)
087:                                    || (comp instanceof  java.awt.TextArea)
088:                                    || (comp instanceof  java.awt.ScrollPane)) {
089:                                peer.pSetScrollbarBackground(c);
090:                            }
091:                        }
092:                    }
093:                }
094:                pSetBackground(c);
095:            }
096:
097:            public void setForeground(Color c) {
098:                Component comp;
099:                int i;
100:
101:                Container cont = (Container) target;
102:                synchronized (target.getTreeLock()) {
103:                    int n = cont.getComponentCount();
104:                    for (i = 0; i < n; i++) {
105:                        comp = cont.getComponent(i);
106:                        MComponentPeer peer = (MComponentPeer) MToolkit
107:                                .targetToPeer(comp);
108:                        if (peer != null) {
109:                            Color color = comp.getForeground();
110:                            if (color == null || color.equals(c)) {
111:                                peer.setForeground(c);
112:                                peer.pSetForeground(c);
113:                            }
114:                            if ((comp instanceof  java.awt.List)
115:                                    || (comp instanceof  java.awt.TextArea)
116:                                    || (comp instanceof  java.awt.ScrollPane)) {
117:                                peer.pSetInnerForeground(c);
118:                            }
119:                        }
120:                    }
121:                }
122:                pSetForeground(c);
123:            }
124:
125:            /**
126:             * DEPRECATED:  Replaced by getInsets().
127:             */
128:            public Insets insets() {
129:                return getInsets();
130:            }
131:
132:            /**
133:             * Recursive method that handles the propagation of the displayChanged
134:             * event into the entire hierarchy of peers.
135:             * Unlike on win32, on X we don't worry about handling on-the-fly
136:             * display settings changes, only windows being dragged across Xinerama
137:             * screens.  Thus, we only need to tell MCanvasPeers, not all
138:             * MComponentPeers.
139:             */
140:            private void recursiveDisplayChanged(Component c, int screenNum) {
141:                if (c instanceof  Container) {
142:                    Component children[] = ((Container) c).getComponents();
143:                    for (int i = 0; i < children.length; ++i) {
144:                        recursiveDisplayChanged(children[i], screenNum);
145:                    }
146:                }
147:                ComponentPeer peer = c.getPeer();
148:                if (peer != null && peer instanceof  MCanvasPeer) {
149:                    MCanvasPeer mPeer = (MCanvasPeer) peer;
150:                    mPeer.displayChanged(screenNum);
151:                }
152:            }
153:
154:            /*
155:             * Often up-called from a MWindowPeer instance.
156:             * Calls displayChanged() on all child canvas' peers.
157:             * Recurses into Container children to ensure all canvases
158:             * get the message.
159:             */
160:            public void displayChanged(int screenNum) {
161:                // Don't do super call because MWindowPeer has already updated its GC
162:
163:                Component children[] = ((Container) target).getComponents();
164:
165:                for (int i = 0; i < children.length; i++) {
166:                    recursiveDisplayChanged(children[i], screenNum);
167:                }
168:            }
169:
170:            protected boolean shouldFocusOnClick() {
171:                // Return false if this container has children so in that case it won't
172:                // be focused. Return true otherwise.
173:                return ((Container) target).getComponentCount() == 0;
174:            }
175:
176:            private native void pEnsureIndex(ComponentPeer child, int index);
177:
178:            private native void pRestack();
179:
180:            private int restack(Container cont, int ind) {
181:                for (int i = 0; i < cont.getComponentCount(); i++) {
182:                    Component comp = cont.getComponent(i);
183:                    if (!comp.isLightweight()) {
184:                        if (comp.getPeer() != null) {
185:                            pEnsureIndex(comp.getPeer(), ind++);
186:                        }
187:                    }
188:                    if (comp.isLightweight() && comp instanceof  Container) {
189:                        ind = restack((Container) comp, ind);
190:                    }
191:                }
192:                return ind;
193:            }
194:
195:            /**
196:             * @see java.awt.peer.ContainerPeer#restack
197:             */
198:            public void restack() {
199:                Container cont = (Container) target;
200:                restack(cont, 0);
201:                pRestack();
202:            }
203:
204:            /**
205:             * @see java.awt.peer.ContainerPeer#isRestackSupported
206:             */
207:            public boolean isRestackSupported() {
208:                return true;
209:            }
210:        }
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