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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

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 * 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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import java.awt.*;

import java.awt.event.*;

/**

 * @test

 * @bug 4449139

 * @summary test MouseWheelEvent generation by Scrollbar component

 */

public final class ScrollbarMouseWheelTest

        implements MouseWheelListener, WindowListener {

    final static String tk = Toolkit.getDefaultToolkit().getClass().getName();

    final static int REPS = 5;

    // There is a bug on Windows: 4616935.

    // Wheel events comes to every component in the hierarchy so we should

    // check a platform.

    // There are two scrollbars within one Panel and both accept 5 clicks, so

    // Panel would accept 5*2 clicks on Windows.

    final static int PANEL_REPS = tk.equals("sun.awt.windows.WToolkit")? REPS * 2: REPS;

    Scrollbar sb1;

    Scrollbar sb2;

    Panel pnl;

    class Sema {

        boolean flag;

        boolean getVal() { return flag;}

        void setVal(boolean b) { flag = b;}

    }

    Sema sema = new Sema();

    Robot robot;

    int sb1upevents, sb2upevents, pnlupevents;

    int sb1downevents, sb2downevents, pnldownevents;

    public static void main(final String[] args) {

        new ScrollbarMouseWheelTest().test();

    }

    public void test() {

        // Move mouse to upper-right area

        try {

            robot = new Robot();

        } catch (AWTException e) {

            System.out.println("Problem creating Robot.  FAIL.");

            throw new RuntimeException("Problem creating Robot.  FAIL.");

        }

        robot.setAutoDelay(500);

        robot.setAutoWaitForIdle(true);

        // Show test Frame

        Frame frame = new Frame("ScrollbarMouseWheelTest");

        frame.addWindowListener(this);

        pnl = new Panel();

        pnl.setLayout(new GridLayout(1, 2));

        pnl.addMouseWheelListener(this);

        sb1 = new Scrollbar();

        sb1.addMouseWheelListener(this);

        pnl.add(sb1);

        sb2 = new Scrollbar();

        pnl.add(sb2);

        frame.add(pnl);

        frame.setSize(200, 400);

        frame.setLocationRelativeTo(null);

        frame.setVisible(true);

        frame.toFront();

        // When Frame is active, start testing (handled in windowActivated())

        while (true) {

            synchronized (sema) {

                if (sema.getVal()) {

                    break;

                }

            }

        }

        // up on sb1

        testComp(sb1, true);

        // down on sb1

        testComp(sb1, false);

        // up on sb2

        testComp(sb2, true);

        // down on sb2

        testComp(sb2, false);

        frame.dispose();

        System.out.println("Test done.");

        if (sb1upevents == REPS &&

                sb2upevents == 0 &&

                pnlupevents == PANEL_REPS &&

                sb1downevents == REPS &&

                sb2downevents == 0 &&

                pnldownevents == PANEL_REPS) {

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

        } else {

            System.out.println("Test Failed:" +

                                       "\n\tsb1upevents =" + sb1upevents +

                                       "\n\tsb2upevents = " + sb2upevents +

                                       "\n\tpnlupevents = " + pnlupevents +

                                       "\n\tsb1downevents =" + sb1downevents +

                                       "\n\tsb2downevents = " + sb2downevents +

                                       "\n\tpnldownevents = " + pnldownevents);

            throw new RuntimeException("Test FAILED.");

        }

    }

    public void testComp(Component comp, boolean up) {

        Point loc = comp.getLocationOnScreen();

        robot.mouseMove(loc.x + comp.getWidth() / 2,

                        loc.y + comp.getHeight() / 2);

        for (int loop = 0; loop < REPS; loop++) {

            System.out.println("Robot.mouseWheel() on " + comp.getName());

            robot.mouseWheel(up ? -1 : 1);

        }

    }

    public void mouseWheelMoved(MouseWheelEvent mwe) {

        Component src = mwe.getComponent();

        System.out.println("mouseWheelMoved() on " + src.getName());

        if (mwe.getWheelRotation() == -1) {

            if (src == sb1) {

                sb1upevents++;

            } else if (src == sb2) {

                sb2upevents++;

            } else if (src == pnl) {

                pnlupevents++;

            } else {

                System.out.println("weird source component");

            }

        } else if (mwe.getWheelRotation() == 1) {

            if (src == sb1) {

                sb1downevents++;

            } else if (src == sb2) {

                sb2downevents++;

            } else if (src == pnl) {

                pnldownevents++;

            } else {

                System.out.println("weird source component");

            }

        } else {

            System.out.println("weird wheel rotation");

        }

    }

    public void windowActivated(WindowEvent we) {

        synchronized (sema) {

            sema.setVal(true);

        }

    }

    public void windowClosed(WindowEvent we) {}

    public void windowClosing(WindowEvent we) {}

    public void windowDeactivated(WindowEvent we) {}

    public void windowDeiconified(WindowEvent we) {}

    public void windowIconified(WindowEvent we) {}

    public void windowOpened(WindowEvent we) {}

}// class ScrollbarMouseWheelTest