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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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/* @test

   @bug 6542335

   @summary different behavior on knob of scroll bar between 1.4.2 and 5.0

   @author  Alexander Potochkin

   @run main bug6542335

*/

import sun.awt.SunToolkit;

import javax.swing.*;

import javax.swing.plaf.basic.BasicScrollBarUI;

import java.awt.*;

import java.awt.event.InputEvent;

public class bug6542335 {

    private static JScrollBar sb;

    private static MyScrollBarUI ui;

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

        final Robot robot = new Robot();

        robot.setAutoDelay(10);

        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();

        final Rectangle[] thumbBounds = new Rectangle[1];

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                final JFrame frame = new JFrame("bug6542335");

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

                sb = new JScrollBar(0, 0, 1, 0, 1);

                ui = new MyScrollBarUI();

                sb.setUI(ui);

                sb.setPreferredSize(new Dimension(200, 17));

                DefaultBoundedRangeModel rangeModel = new DefaultBoundedRangeModel();

                rangeModel.setMaximum(100);

                rangeModel.setMinimum(0);

                rangeModel.setExtent(50);

                rangeModel.setValue(50);

                sb.setModel(rangeModel);

                frame.add(sb, BorderLayout.NORTH);

                frame.setSize(200, 100);

                frame.setVisible(true);

            }

        });

        toolkit.realSync();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                thumbBounds[0] = new Rectangle(ui.getThumbBounds());

                Point l = sb.getLocationOnScreen();

                robot.mouseMove(l.x + (int) (0.75 * sb.getWidth()), l.y + sb.getHeight() / 2);

                robot.mousePress(InputEvent.BUTTON1_MASK);

                robot.mouseRelease(InputEvent.BUTTON1_MASK);

            }

        });

        toolkit.realSync();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                Rectangle newThumbBounds = ui.getThumbBounds();

                if (!thumbBounds[0].equals(newThumbBounds)) {

                    throw new RuntimeException("Test failed.\nOld bounds: " + thumbBounds[0] +

                    "\nNew bounds: " + newThumbBounds);

                }

            }

        });

    }

    static class MyScrollBarUI extends BasicScrollBarUI {

        public Rectangle getThumbBounds() {

            return super.getThumbBounds();

        }

    }

}