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/*
* Copyright (c) 2002, 2024, 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.
*/
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
/*
* @test
* @bug 4328588
* @key headful
* @summary Non-default visual on top-level Frame should work
* @run main FrameVisualTest
*/
public class FrameVisualTest {
private static GraphicsConfiguration[] gcs;
private static volatile Frame[] frames;
private static volatile int index;
private static Frame f;
private static Robot robot;
private static volatile Point p;
private static volatile Dimension d;
private static final int TOLERANCE = 5;
public static void main(String[] args) throws Exception {
gcs = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getConfigurations();
robot = new Robot();
robot.setAutoDelay(100);
try {
EventQueue.invokeAndWait(() -> {
createAndShowUI();
});
robot.delay(1000);
System.out.println("frames.length: "+frames.length);
for (index = 0; index < frames.length; index++) {
EventQueue.invokeAndWait(() -> {
p = frames[index].getLocation();
d = frames[index].getSize();
});
Rectangle rect = new Rectangle(p, d);
BufferedImage img = robot.createScreenCapture(rect);
if (chkImgBackgroundColor(img)) {
try {
ImageIO.write(img, "png", new File("Frame_" + index + ".png"));
} catch (IOException ignored) {}
throw new RuntimeException("Frame visual test failed with non-white background color");
}
}
} finally {
for (index = 0; index < frames.length; index++) {
EventQueue.invokeAndWait(() -> {
if (frames[index] != null) {
frames[index].dispose();
}
});
}
}
}
private static void createAndShowUI() {
frames = new Frame[gcs.length];
for (int i = 0; i < frames.length; i++) {
frames[i] = new Frame("Frame w/ gc " + i, gcs[i]);
frames[i].setSize(100, 100);
frames[i].setUndecorated(true);
frames[i].setBackground(Color.WHITE);
frames[i].setVisible(true);
}
}
private static boolean chkImgBackgroundColor(BufferedImage img) {
// scan for mid-line and if it is non-white color then return true.
for (int x = 1; x < img.getWidth() - 1; ++x) {
Color c = new Color(img.getRGB(x, img.getHeight() / 2));
if ((c.getRed() - Color.WHITE.getRed()) > TOLERANCE &&
(c.getGreen() - Color.WHITE.getGreen()) > TOLERANCE &&
(c.getBlue() - Color.WHITE.getBlue()) > TOLERANCE) {
return true;
}
}
return false;
}
}
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