1 /*
2 * Copyright 2003-2008 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.X11;
26
27 import java.awt.Component;
28 import java.awt.Rectangle;
29 import java.awt.Insets;
30
31 import java.awt.event.ComponentEvent;
32
33 import java.util.logging.Level;
34 import java.util.logging.Logger;
35
36 import sun.awt.ComponentAccessor;
37
38 /**
39 * This class implements window which serves as content window for decorated frames.
40 * Its purpose to provide correct events dispatching for the complex
41 * constructs such as decorated frames.
42 *
43 * It should always be located at (- left inset, - top inset) in the associated
44 * decorated window. So coordinates in it would be the same as java coordinates.
45 */
46 public final class XContentWindow extends XWindow {
47 private static Logger insLog = Logger.getLogger("sun.awt.X11.insets.XContentWindow");
48
49 static XContentWindow createContent(XDecoratedPeer parentFrame) {
50 final WindowDimensions dims = parentFrame.getDimensions();
51 Rectangle rec = dims.getBounds();
52 // Fix for - set the location of the content window to the (-left inset, -top inset)
53 Insets ins = dims.getInsets();
54 if (ins != null) {
55 rec.x = -ins.left;
56 rec.y = -ins.top;
57 } else {
58 rec.x = 0;
59 rec.y = 0;
60 }
61 final XContentWindow cw = new XContentWindow(parentFrame, rec);
62 cw.xSetVisible(true);
63 return cw;
64 }
65
66 private final XDecoratedPeer parentFrame;
67
68 // A list of expose events that come when the parentFrame is iconified
69 private final java.util.List<SavedExposeEvent> iconifiedExposeEvents =
70 new java.util.ArrayList<SavedExposeEvent>();
71
72 private XContentWindow(XDecoratedPeer parentFrame, Rectangle bounds) {
73 super((Component)parentFrame.getTarget(), parentFrame.getShell(), bounds);
74 this.parentFrame = parentFrame;
75 }
76
77 void preInit(XCreateWindowParams params) {
78 super.preInit(params);
79 params.putIfNull(BIT_GRAVITY, Integer.valueOf(XConstants.NorthWestGravity));
80 Long eventMask = (Long)params.get(EVENT_MASK);
81 if (eventMask != null) {
82 eventMask = eventMask & ~(XConstants.StructureNotifyMask);
83 params.put(EVENT_MASK, eventMask);
84 }
85 }
86
87 protected String getWMName() {
88 return "Content window";
89 }
90 protected boolean isEventDisabled(XEvent e) {
91 switch (e.get_type()) {
92 // Override parentFrame to receive MouseEnter/Exit
93 case XConstants.EnterNotify:
94 case XConstants.LeaveNotify:
95 return false;
96 // We handle ConfigureNotify specifically in XDecoratedPeer
97 case XConstants.ConfigureNotify:
98 return true;
99 // We don't want SHOWN/HIDDEN on content window since it will duplicate XDecoratedPeer
100 case XConstants.MapNotify:
101 case XConstants.UnmapNotify:
102 return true;
103 default:
104 return super.isEventDisabled(e) || parentFrame.isEventDisabled(e);
105 }
106 }
107
108 // Coordinates are that of the shell
109 void setContentBounds(WindowDimensions dims) {
110 XToolkit.awtLock();
111 try {
112 // Bounds of content window are of the same size as bounds of Java window and with
113 // location as -(insets)
114 Rectangle newBounds = dims.getBounds();
115 Insets in = dims.getInsets();
116 if (in != null) {
117 newBounds.setLocation(-in.left, -in.top);
118 }
119 if (insLog.isLoggable(Level.FINE)) insLog.log(Level.FINE, "Setting content bounds {0}, old bounds {1}",
120 new Object[] {newBounds, getBounds()});
121 // Fix for 5023533:
122 // Change in the size of the content window means, well, change of the size
123 // Change in the location of the content window means change in insets
124 boolean needHandleResize = !(newBounds.equals(getBounds()));
125 reshape(newBounds);
126 if (needHandleResize) {
127 insLog.fine("Sending RESIZED");
128 handleResize(newBounds);
129 }
130 } finally {
131 XToolkit.awtUnlock();
132 }
133 validateSurface();
134 }
135
136 // NOTE: This method may be called by privileged threads.
137 // DO NOT INVOKE CLIENT CODE ON THIS THREAD!
138 public void handleResize(Rectangle bounds) {
139 ComponentAccessor.setWidth((Component)target, bounds.width);
140 ComponentAccessor.setHeight((Component)target, bounds.height);
141 postEvent(new ComponentEvent(target, ComponentEvent.COMPONENT_RESIZED));
142 }
143
144
145 public void handleExposeEvent(Component target, int x, int y, int w, int h) {
146 // TODO: ?
147 // get rid of 'istanceof' by subclassing:
148 // XContentWindow -> XFrameContentWindow
149
150 // Expose event(s) that result from deiconification
151 // come before a deicinofication notification.
152 // We reorder these events by saving all expose events
153 // that come when the frame is iconified. Then we
154 // actually handle saved expose events on deiconification.
155
156 if (parentFrame instanceof XFramePeer &&
157 (((XFramePeer)parentFrame).getState() & java.awt.Frame.ICONIFIED) != 0) {
158 // Save expose events if the frame is iconified
159 // in order to handle them on deiconification.
160 iconifiedExposeEvents.add(new SavedExposeEvent(target, x, y, w, h));
161 } else {
162 // Normal case: [it is not a frame or] the frame is not iconified.
163 super.handleExposeEvent(target, x, y, w, h);
164 }
165 }
166
167 void purgeIconifiedExposeEvents() {
168 for (SavedExposeEvent evt : iconifiedExposeEvents) {
169 super.handleExposeEvent(evt.target, evt.x, evt.y, evt.w, evt.h);
170 }
171 iconifiedExposeEvents.clear();
172 }
173
174 private static class SavedExposeEvent {
175 Component target;
176 int x, y, w, h;
177 SavedExposeEvent(Component target, int x, int y, int w, int h) {
178 this.target = target;
179 this.x = x;
180 this.y = y;
181 this.w = w;
182 this.h = h;
183 }
184 }
185
186 public String toString() {
187 return getClass().getName() + "[" + getBounds() + "]";
188 }
189 }