/*

 * 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

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 */

import java.awt.Button;

import java.awt.Frame;

import java.awt.Rectangle;

import java.awt.Robot;

import jdk.testlibrary.OSInfo;

/*

 * @test 1.2 98/08/05

 * @bug 4373478 8079255

 * @summary Test mouse wheel functionality of Robot

 * @author bchristi: area=Robot

 * @library ../../../../lib/testlibrary

 * @build jdk.testlibrary.OSInfo

 * @run main RobotWheelTest

 */

public class RobotWheelTest {

    private static final int NUMTESTS = 20;

    private static volatile int wheelRotation;

    public static void main(String[] args) throws Exception {

        Frame frame = null;

        try {

            int wheelSign = OSInfo.getOSType().equals(OSInfo.OSType.MACOSX) ? -1 : 1;

            frame = new Frame();

            frame.setSize(200, 200);

            Button button = new Button("WheelButton");

            button.addMouseWheelListener(e -> wheelRotation = e.getWheelRotation());

            frame.add(button);

            frame.setVisible(true);

            Robot robot = new Robot();

            robot.setAutoDelay(100);

            robot.waitForIdle();

            Rectangle bounds = frame.getBounds();

            int centerX = bounds.x + bounds.width / 2;

            int centerY = bounds.y + bounds.height / 2;

            robot.mouseMove(centerX, centerY);

            robot.waitForIdle();

            for (int i = -NUMTESTS; i <= NUMTESTS; i++) {

                if (i == 0) {

                    continue;

                }

                robot.mouseWheel(i);

                robot.waitForIdle();

                if (i != wheelSign * wheelRotation) {

                    throw new RuntimeException("wheelRotation = " + wheelRotation

                            + ", expected value = " + i);

                }

            }

        } finally {

            if (frame != null) {

                frame.dispose();

            }

        }

    }

}