CopyAreaOOB.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
24/*
25 * @test
26 * @key headful
27 * @bug 6430601
28 * @summary Verifies that copyArea() works properly when the
29 * destination parameters are outside the destination bounds.
30 * @run main/othervm CopyAreaOOB
31 * @run main/othervm -Dsun.java2d.opengl=True CopyAreaOOB
32 * @author campbelc
33 */
34
35import java.awt.*;
36import java.awt.image.*;
37
38public class CopyAreaOOB extends Canvas {
39
40    private static boolean done;
41
42    public void paint(Graphics g) {
43        synchronized (this) {
44            if (done) {
45                return;
46            }
47        }
48
49        int w = getWidth();
50        int h = getHeight();
51
52        Graphics2D g2d = (Graphics2D)g;
53        g2d.setColor(Color.black);
54        g2d.fillRect(0, 0, w, h);
55
56        g2d.setColor(Color.green);
57        g2d.fillRect(0, 0, w, 10);
58
59        g2d.setColor(Color.red);
60        g2d.fillRect(0, 10, 50, h-10);
61
62        // copy the region such that part of it goes below the bottom of the
63        // destination surface
64        g2d.copyArea(0, 10, 50, h-10, 60, 10);
65
66        Toolkit.getDefaultToolkit().sync();
67
68        synchronized (this) {
69            done = true;
70            notifyAll();
71        }
72    }
73
74    public Dimension getPreferredSize() {
75        return new Dimension(400, 400);
76    }
77
78    private static void testRegion(BufferedImage bi, String name,
79                                   int x1, int y1, int x2, int y2,
80                                   int expected)
81    {
82        for (int y = y1; y < y2; y++) {
83            for (int x = x1; x < x2; x++) {
84                int actual = bi.getRGB(x, y);
85                if (actual != expected) {
86                    throw new RuntimeException("Test failed for " + name +
87                                                       " region at x="+x+" y="+y+
88                                                       " (expected="+
89                                                       Integer.toHexString(expected) +
90                                                       " actual="+
91                                                       Integer.toHexString(actual) +
92                                                       ")");
93                }
94            }
95        }
96    }
97
98    public static void main(String[] args) {
99        boolean show = (args.length == 1) && ("-show".equals(args[0]));
100
101        CopyAreaOOB test = new CopyAreaOOB();
102        Frame frame = new Frame();
103        frame.setUndecorated(true);
104        frame.add(test);
105        frame.pack();
106        frame.setLocationRelativeTo(null);
107        frame.setVisible(true);
108
109        // Wait until the component's been painted
110        synchronized (test) {
111            while (!done) {
112                try {
113                    test.wait();
114                } catch (InterruptedException e) {
115                    throw new RuntimeException("Failed: Interrupted");
116                }
117            }
118        }
119
120        try {
121            Thread.sleep(2000);
122        } catch (InterruptedException ex) {}
123
124        // Grab the screen region
125        BufferedImage capture = null;
126        try {
127            Robot robot = new Robot();
128            Point pt1 = test.getLocationOnScreen();
129            Rectangle rect = new Rectangle(pt1.x, pt1.y, 400, 400);
130            capture = robot.createScreenCapture(rect);
131        } catch (Exception e) {
132            throw new RuntimeException("Problems creating Robot");
133        } finally {
134            if (!show) {
135                frame.dispose();
136            }
137        }
138
139        // Test pixels
140        testRegion(capture, "green",          0,   0, 400,  10, 0xff00ff00);
141        testRegion(capture, "original red",   0,  10,  50, 400, 0xffff0000);
142        testRegion(capture, "background",    50,  10,  60, 400, 0xff000000);
143        testRegion(capture, "in-between",    60,  10, 110,  20, 0xff000000);
144        testRegion(capture, "copied red",    60,  20, 110, 400, 0xffff0000);
145        testRegion(capture, "background",   110,  10, 400, 400, 0xff000000);
146    }
147}
148