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/*
* Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @key headful
* @bug 6430601 8198613
* @summary Verifies that copyArea() works properly when the
* destination parameters are outside the destination bounds.
* @run main/othervm CopyAreaOOB
* @author campbelc
*/
import java.awt.*;
import java.awt.image.*;
public class CopyAreaOOB extends Canvas {
private static Robot robot = null;
public void paint(Graphics g) {
int w = getWidth();
int h = getHeight();
Graphics2D g2d = (Graphics2D)g;
g2d.setColor(Color.black);
g2d.fillRect(0, 0, w, h);
g2d.setColor(Color.green);
g2d.fillRect(0, 0, w, 10);
g2d.setColor(Color.red);
g2d.fillRect(0, 10, 50, h-10);
// copy the region such that part of it goes below the bottom of the
// destination surface
g2d.copyArea(0, 10, 50, h-10, 60, 10);
Toolkit.getDefaultToolkit().sync();
BufferedImage capture = null;
try {
Thread.sleep(500);
if (robot == null) robot = new Robot();
Point pt1 = getLocationOnScreen();
Rectangle rect = new Rectangle(pt1.x, pt1.y, 400, 400);
capture = robot.createScreenCapture(rect);
} catch (Exception e) {
throw new RuntimeException("Problems handling Robot");
}
// Test pixels
testRegion(capture, "green", 0, 0, 400, 10, 0xff00ff00);
testRegion(capture, "original red", 0, 10, 50, 400, 0xffff0000);
testRegion(capture, "background", 50, 10, 60, 400, 0xff000000);
testRegion(capture, "in-between", 60, 10, 110, 20, 0xff000000);
testRegion(capture, "copied red", 60, 20, 110, 400, 0xffff0000);
testRegion(capture, "background", 110, 10, 400, 400, 0xff000000);
}
public Dimension getPreferredSize() {
return new Dimension(400, 400);
}
private static void testRegion(BufferedImage bi, String name,
int x1, int y1, int x2, int y2,
int expected)
{
for (int y = y1; y < y2; y++) {
for (int x = x1; x < x2; x++) {
int actual = bi.getRGB(x, y);
if (actual != expected) {
throw new RuntimeException("Test failed for " + name +
" region at x="+x+" y="+y+
" (expected="+
Integer.toHexString(expected) +
" actual="+
Integer.toHexString(actual) +
")");
}
}
}
}
public static void main(String[] args) {
boolean show = (args.length == 1) && ("-show".equals(args[0]));
CopyAreaOOB test = new CopyAreaOOB();
Frame frame = new Frame();
frame.setUndecorated(true);
frame.add(test);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
try {
Thread.sleep(3000);
} catch (InterruptedException ex) {}
if (!show) {
frame.dispose();
}
}
}
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