1 /*
2 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.awt;
27
28 import java.awt.*;
29 import java.util.*;
30
31 import sun.java2d.*;
32
33 /**
34 * This is an implementation of a GraphicsEnvironment object for the default
35 * local GraphicsEnvironment used by the Java Runtime Environment for Mac OS X
36 * GUI environments.
37 *
38 * @see GraphicsDevice
39 * @see GraphicsConfiguration
40 */
41 public final class CGraphicsEnvironment extends SunGraphicsEnvironment {
42
43 /**
44 * Fetch an array of all valid CoreGraphics display identifiers.
45 */
46 private static native int[] getDisplayIDs();
47
48 /**
49 * Fetch the CoreGraphics display ID for the 'main' display.
50 */
51 private static native int getMainDisplayID();
70 *
71 * @return Return the registration context (a pointer).
72 */
73 private native long registerDisplayReconfiguration();
74
75 /**
76 * Remove the instance's registration with CGDisplayRemoveReconfigurationCallback()
77 */
78 private native void deregisterDisplayReconfiguration(long context);
79
80 /** Available CoreGraphics displays. */
81 private final Map<Integer, CGraphicsDevice> devices = new HashMap<>(5);
82 /**
83 * The key in the {@link #devices} for the main display.
84 */
85 private int mainDisplayID;
86
87 /** Reference to the display reconfiguration callback context. */
88 private final long displayReconfigContext;
89
90 /**
91 * Construct a new instance.
92 */
93 public CGraphicsEnvironment() {
94 if (isHeadless()) {
95 displayReconfigContext = 0L;
96 return;
97 }
98
99 /* Populate the device table */
100 initDevices();
101
102 /* Register our display reconfiguration listener */
103 displayReconfigContext = registerDisplayReconfiguration();
104 if (displayReconfigContext == 0L) {
105 throw new RuntimeException("Could not register CoreGraphics display reconfiguration callback");
106 }
107 }
108
109 /**
110 * Called by the CoreGraphics Display Reconfiguration Callback.
111 *
112 * @param displayId CoreGraphics displayId
113 * @param removed true if displayId was removed, false otherwise.
114 */
115 void _displayReconfiguration(final int displayId, final boolean removed) {
116 synchronized (this) {
117 if (removed && devices.containsKey(displayId)) {
118 final CGraphicsDevice gd = devices.remove(displayId);
119 gd.invalidate(getMainDisplayID());
120 gd.displayChanged();
121 }
122 }
123 initDevices();
124 }
125
126 @Override
127 @SuppressWarnings("deprecation")
128 protected void finalize() throws Throwable {
129 try {
130 super.finalize();
131 } finally {
132 deregisterDisplayReconfiguration(displayReconfigContext);
133 }
134 }
135
136 /**
137 * (Re)create all CGraphicsDevices, reuses a devices if it is possible.
138 */
139 private void initDevices() {
140 synchronized (this) {
141 final Map<Integer, CGraphicsDevice> old = new HashMap<>(devices);
142 devices.clear();
143
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1 /*
2 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.awt;
27
28 import java.awt.AWTError;
29 import java.awt.Font;
30 import java.awt.GraphicsConfiguration;
31 import java.awt.GraphicsDevice;
32 import java.awt.HeadlessException;
33 import java.awt.Toolkit;
34 import java.lang.ref.WeakReference;
35 import java.util.ArrayList;
36 import java.util.HashMap;
37 import java.util.List;
38 import java.util.ListIterator;
39 import java.util.Map;
40
41 import sun.java2d.MacosxSurfaceManagerFactory;
42 import sun.java2d.SunGraphicsEnvironment;
43 import sun.java2d.SurfaceManagerFactory;
44
45 /**
46 * This is an implementation of a GraphicsEnvironment object for the default
47 * local GraphicsEnvironment used by the Java Runtime Environment for Mac OS X
48 * GUI environments.
49 *
50 * @see GraphicsDevice
51 * @see GraphicsConfiguration
52 */
53 public final class CGraphicsEnvironment extends SunGraphicsEnvironment {
54
55 /**
56 * Fetch an array of all valid CoreGraphics display identifiers.
57 */
58 private static native int[] getDisplayIDs();
59
60 /**
61 * Fetch the CoreGraphics display ID for the 'main' display.
62 */
63 private static native int getMainDisplayID();
82 *
83 * @return Return the registration context (a pointer).
84 */
85 private native long registerDisplayReconfiguration();
86
87 /**
88 * Remove the instance's registration with CGDisplayRemoveReconfigurationCallback()
89 */
90 private native void deregisterDisplayReconfiguration(long context);
91
92 /** Available CoreGraphics displays. */
93 private final Map<Integer, CGraphicsDevice> devices = new HashMap<>(5);
94 /**
95 * The key in the {@link #devices} for the main display.
96 */
97 private int mainDisplayID;
98
99 /** Reference to the display reconfiguration callback context. */
100 private final long displayReconfigContext;
101
102 // list of invalidated graphics devices (those which were removed)
103 private List<WeakReference<CGraphicsDevice>> oldDevices = new ArrayList<>();
104
105 /**
106 * Construct a new instance.
107 */
108 public CGraphicsEnvironment() {
109 if (isHeadless()) {
110 displayReconfigContext = 0L;
111 return;
112 }
113
114 /* Populate the device table */
115 initDevices();
116
117 /* Register our display reconfiguration listener */
118 displayReconfigContext = registerDisplayReconfiguration();
119 if (displayReconfigContext == 0L) {
120 throw new RuntimeException("Could not register CoreGraphics display reconfiguration callback");
121 }
122 }
123
124 /**
125 * Called by the CoreGraphics Display Reconfiguration Callback.
126 *
127 * @param displayId CoreGraphics displayId
128 * @param removed true if displayId was removed, false otherwise.
129 */
130 void _displayReconfiguration(final int displayId, final boolean removed) {
131 synchronized (this) {
132 if (removed && devices.containsKey(displayId)) {
133 final CGraphicsDevice gd = devices.remove(displayId);
134 oldDevices.add(new WeakReference<>(gd));
135 }
136 }
137 initDevices();
138
139 // Need to notify old devices, in case the user hold the reference to it
140 for (ListIterator<WeakReference<CGraphicsDevice>> it =
141 oldDevices.listIterator(); it.hasNext(); ) {
142 CGraphicsDevice gd = it.next().get();
143 if (gd != null) {
144 gd.invalidate(mainDisplayID);
145 gd.displayChanged();
146 } else {
147 // no more references to this device, remove it
148 it.remove();
149 }
150 }
151 }
152
153 @Override
154 @SuppressWarnings("deprecation")
155 protected void finalize() throws Throwable {
156 try {
157 super.finalize();
158 } finally {
159 deregisterDisplayReconfiguration(displayReconfigContext);
160 }
161 }
162
163 /**
164 * (Re)create all CGraphicsDevices, reuses a devices if it is possible.
165 */
166 private void initDevices() {
167 synchronized (this) {
168 final Map<Integer, CGraphicsDevice> old = new HashMap<>(devices);
169 devices.clear();
170
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