test/jdk/java/awt/Multiscreen/MouseEventTest/MouseEventTest.java

/*
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 * 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.
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/*
  @test
  @key headful
  @bug 8017472
  @summary MouseEvent has wrong coordinates when using multiple monitors
  @run main MouseEventTest
 */

import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class MouseEventTest {
    static volatile boolean crossed = false;

    static void sleep(Robot robot) throws InterruptedException {
        robot.waitForIdle();
        Thread.sleep(500);
    }

    public static void main(String[] args) throws AWTException, InterruptedException {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice[] gds = ge.getScreenDevices();
        if (gds.length < 2) {
            System.out.println("It's a multiscreen test... skipping!");
            return;
        }

        for (int i = 0; i < gds.length; ++i) {
            GraphicsDevice gd = gds[i];
            GraphicsConfiguration gc = gd.getDefaultConfiguration();
            Rectangle screen = gc.getBounds();
            Robot robot = new Robot(gd);
            robot.setAutoDelay(100);


            Frame frame = new Frame(gc);
            frame.setUndecorated(true);
            frame.setSize(200, 200);
            frame.setLocation(screen.x + 200, screen.y + 200);
            frame.setBackground(Color.YELLOW);
            frame.setVisible(true);
            sleep(robot);

            Point loc = frame.getLocationOnScreen();
            Dimension size = frame.getSize();
            final Point point = new Point(
                    loc.x + size.width / 2,
                    loc.y + size.height / 2);

            crossed = false;

            frame.addMouseMotionListener(new MouseAdapter() {
                @Override
                public void mouseMoved(MouseEvent e) {
                    if (point.equals(e.getLocationOnScreen())) {
                        crossed = true;
                    }
                }
            });

            robot.mouseMove(point.x - 1, point.y - 1);
            robot.mouseMove(point.x, point.y);

            sleep(robot);
            frame.dispose();

            if (!crossed) {
                throw new RuntimeException("An expected mouse motion event was not received on the screen #" + i);
            }
        }

        System.out.println("Test PASSED!");
    }
}