AppletFlipBuffer.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24import java.applet.Applet;
25import java.awt.AWTException;
26import java.awt.BufferCapabilities;
27import java.awt.BufferCapabilities.FlipContents;
28import java.awt.Frame;
29import java.awt.ImageCapabilities;
30import java.util.HashSet;
31import java.util.Set;
32
33import sun.awt.AWTAccessor;
34import sun.awt.AWTAccessor.ComponentAccessor;
35
36import static java.awt.BufferCapabilities.FlipContents.BACKGROUND;
37import static java.awt.BufferCapabilities.FlipContents.COPIED;
38import static java.awt.BufferCapabilities.FlipContents.PRIOR;
39import static java.awt.BufferCapabilities.FlipContents.UNDEFINED;
40
41/**
42 * @test
43 * @key headful
44 * @bug 8130390 8134732
45 * @summary Applet fails to launch on virtual desktop
46 * @modules java.desktop/sun.awt
47 * @author Semyon Sadetsky
48 */
49public final class AppletFlipBuffer {
50
51    static final ImageCapabilities[] ics = {new ImageCapabilities(true),
52                                            new ImageCapabilities(false)};
53    static final FlipContents[] cntx = {UNDEFINED, BACKGROUND, PRIOR, COPIED};
54    static final Set<BufferCapabilities> bcs = new HashSet<>();
55
56    static {
57        for (final ImageCapabilities icFront : ics) {
58            for (final ImageCapabilities icBack : ics) {
59                for (final FlipContents cnt : cntx) {
60                    bcs.add(new BufferCapabilities(icFront, icBack, cnt));
61                }
62            }
63        }
64    }
65
66    public static void main(final String[] args) throws Exception {
67        Applet applet = new Applet();
68        Frame frame = new Frame();
69        try {
70            frame.setSize(10, 10);
71            frame.add(applet);
72            frame.setUndecorated(true);
73            frame.setVisible(true);
74            test(applet);
75            System.out.println("ok");
76        } finally {
77            frame.dispose();
78        }
79    }
80
81    private static void test(final Applet applet) {
82        ComponentAccessor acc = AWTAccessor.getComponentAccessor();
83        for (int i = 1; i < 10; ++i) {
84            for (final BufferCapabilities caps : bcs) {
85                try {
86                    acc.createBufferStrategy(applet, i, caps);
87                } catch (final AWTException ignored) {
88                    // this kind of buffer strategy is not supported
89                }
90            }
91        }
92    }
93}
94