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Java example source code file (JContainerMousePositionTest.java)

This example Java source code file (JContainerMousePositionTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

atomicreference, awt, container, gridlayout, gui, jbutton, jcontainermousepositiontest, jframe, lws, robot, runtimeexception, swing, test, testing

The JContainerMousePositionTest.java Java example source code

/*
 * Copyright (c) 2013, 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
  @summary unit test for a new method in Container class: getMousePosition(boolean)
  @author dav@sparc.spb.su: area=
  @bug 4009555
  @run main JContainerMousePositionTest
*/

import javax.swing.*;
import java.awt.*;
import java.util.concurrent.atomic.AtomicReference;

// this test looks at mouse pointer when it
// 1 over component
// 2 over Container, but not over one of its child Components.
// out of bounds of Container
// two values of paramater allowChildren are considered.

public class JContainerMousePositionTest {
    //Declare things used in the test, like buttons and labels here
    private static JButton jButton1;
    private static JButton jButton4;
    private static JFrame frame1;
    private static Container contentPane;

    public static void main(final String[] args) throws Exception {
        Robot robot = new Robot();
        robot.setAutoDelay(200);
        robot.setAutoWaitForIdle(true);

        SwingUtilities.invokeAndWait(JContainerMousePositionTest::init);

        robot.delay(500);
        robot.waitForIdle();

        AtomicReference<Point> centerC4 = new AtomicReference<>();
        SwingUtilities.invokeAndWait(() -> {
            centerC4.set(jButton4.getLocation());
            contentPane.remove(jButton4);
            contentPane.validate();
            contentPane.repaint();
        });
        robot.waitForIdle();

        AtomicReference<Rectangle> frameBounds = new AtomicReference<>();
        AtomicReference<Dimension> button1Size = new AtomicReference<>();
        SwingUtilities.invokeAndWait(() -> {
            frameBounds.set(frame1.getBounds());
            button1Size.set(jButton1.getSize());
        });

//point mouse to center of top-left Component (button1)
        robot.mouseMove(frameBounds.get().x + button1Size.get().width / 2,
                        frameBounds.get().y + button1Size.get().height / 2);

        AtomicReference<Point> pFalse = new AtomicReference<>();
        AtomicReference<Point> pTrue = new AtomicReference<>();
        SwingUtilities.invokeAndWait(() -> {
            pFalse.set(frame1.getMousePosition(false));
            pTrue.set(frame1.getMousePosition(true));
        });
        robot.waitForIdle();
        if (pFalse.get() != null) {
            throw new RuntimeException("Test failed: Container.getMousePosition(false) returned non-null over one of children.");
        }
        System.out.println("Test stage completed: Container.getMousePosition(false) returned null result over child Component. Passed.");

        if (pTrue.get() == null) {
            throw new RuntimeException("Test failed: Container.getMousePosition(true) returned null result over child Component");
        }
        System.out.println("Test stage compelted: Container.getMousePosition(true) returned non-null result over child Component. Passed.");

//point mouse out from Container's area
        robot.mouseMove(frameBounds.get().x + frameBounds.get().width + 10,
                        frameBounds.get().y + frameBounds.get().height + 10);
        SwingUtilities.invokeAndWait(() -> {
            pFalse.set(frame1.getMousePosition(false));
            pTrue.set(frame1.getMousePosition(true));
        });
        robot.waitForIdle();
        if (pFalse.get() != null || pTrue.get() != null) {
            throw new RuntimeException("Test failed: Container.getMousePosition(boolean) returned incorrect result outside Container");
        }
        System.out.println("Test stage completed: Container.getMousePosition(boolean) returned null result outside Container. Passed.");

//point mouse in place free from child components (right-botton component)
        robot.mouseMove(frameBounds.get().x + centerC4.get().x,
                        frameBounds.get().y + centerC4.get().y);

        robot.delay(3000);
        SwingUtilities.invokeAndWait(() -> {
            pFalse.set(contentPane.getMousePosition(false));
            pTrue.set(frame1.getMousePosition(true));
        });
        robot.waitForIdle();

        if (pFalse.get() == null || pTrue.get() == null) {
            throw new RuntimeException("Test failed: Container.getMousePosition(boolean) returned null result inside Container.");
        }
        System.out.println("Test stage completed: Container.getMousePosition(boolean) returned non-null results  inside Container. Passed.");

        if (pTrue.get().x != centerC4.get().x || pTrue.get().y != centerC4.get().y) {
            throw new RuntimeException("Test failed: Container.getMousePosition(true) returned incorrect result inside Container.");
        }
        System.out.println("Test stage completed: Container.getMousePosition(true) returned correct result inside Container. Passed.");

        System.out.println("TEST PASSED");
    }

    private static void init() {
        frame1 = new JFrame("Testing getMousePosition() on LWs");
        jButton1 = new JButton("C1");
        jButton4 = new JButton("C4");
        contentPane = frame1.getContentPane();
        contentPane.setLayout(new GridLayout(2, 2, 25, 25));
        contentPane.add(jButton1);
        contentPane.add(new JButton("C2"));
        contentPane.add(new JButton("C3"));
        contentPane.add(jButton4);
        frame1.setSize(200, 200);
        frame1.setVisible(true);
    }
}


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