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

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 * 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 javax.swing.*;

import java.awt.*;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

/*

 * @test

 * @bug 8024627

 * @summary Check if a JComboBox present in a window set with opacity less than

 *          1.0 shows a translucent drop down

 * Test Description: Check if TRANSLUCENT translucency type is supported on the

 *      current platform. Proceed if supported. Show a window which contains an

 *      JComboBox and set with opacity less than 1.0. Another Window having a canvas

 *      component drawn with an image can be used as the background for the test

 *      window. Click on the ComboBox to show the drop down. Check if the drop down

 *      appears translucent. Repeat this for JWindow, JDialog and JFrame

 * Expected Result: If TRANSLUCENT Translucency type is supported, the drop down

 *      should appear translucent.

 * @author mrkam

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

 * @build Common ExtendedRobot

 * @run main TranslucentJComboBox

 */

public class TranslucentJComboBox extends Common {

    JComponent south;

    JComponent center;

    JPanel north;

    volatile boolean southClicked = false;

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

        if (checkTranslucencyMode(GraphicsDevice.WindowTranslucency.TRANSLUCENT))

            for (Class<Window> windowClass: WINDOWS_TO_TEST)

                new TranslucentJComboBox(windowClass).doTest();

    }

    public TranslucentJComboBox(Class windowClass) throws Exception {

        super(windowClass, 0.3f, 1.0f, false);

    }

    @Override

    public void initBackgroundFrame() {

        super.initBackgroundFrame();

    }

    @Override

    public void createSwingComponents() {

        Container contentPane = RootPaneContainer.class.cast(window).getContentPane();

        window.setLayout(new BorderLayout());

        north = new JPanel();

        contentPane.add(north, BorderLayout.NORTH);

        center = new JList(new String [] { "Center" });

        contentPane.add(center, BorderLayout.CENTER);

        JComboBox jComboBox = new JComboBox();

        for(int i = 0; i < 20; i++) {

            jComboBox.addItem("item " + i);

        }

        south = jComboBox;

        south.addMouseListener(new MouseAdapter() {

            @Override

            public void mouseClicked(MouseEvent e) {

                southClicked = true;

            }

        });

        contentPane.add(south, BorderLayout.SOUTH);

    }

    @Override

    public void doTest() throws Exception {

        robot.waitForIdle(delay);

        // Make window an active

        Point ls = north.getLocationOnScreen();

        robot.mouseMove(ls.x + north.getWidth()/2, ls.y + north.getHeight()/2);

        robot.click();

        // Invoke list

        ls = south.getLocationOnScreen();

        Point p1 = new Point(

                (int) (ls.x + south.getWidth() * 0.75),

                ls.y + south.getHeight() * 3);

        Point p2 = new Point(

                (int) (ls.x + south.getWidth() * 0.75),

                ls.y - south.getHeight() * 2);

        Color c1 = robot.getPixelColor(p1.x, p1.y);

        Color c2 = robot.getPixelColor(p2.x, p2.y);

        int x = ls.x + south.getWidth()/2;

        int y = ls.y + south.getHeight()/2;

        System.out.println("Trying to click point "+x+", "+y+

                ", looking for flag to trigger.");

        robot.mouseMove(x, y);

        robot.waitForIdle(delay);

        robot.click();

        robot.waitForIdle(delay);

        if (!southClicked)

            throw new RuntimeException("Flag is not triggered for point "+x+", "+y+"!");

        robot.waitForIdle();

        Color c1b = robot.getPixelColor(p1.x, p1.y);

        Color c2b = robot.getPixelColor(p2.x, p2.y);

        if (!c1.equals(c1b) && !south.getBackground().equals(c1b))

            throw new RuntimeException(

                    "Check for opaque drop down failed at point " + p1 +

                            ". Before click: " + c1 + ", after click: " + c1b +

                            ", expected is " + south.getBackground());

        if (!c2.equals(c2b) && !south.getBackground().equals(c2b))

            throw new RuntimeException(

                    "Check for opaque drop down failed at point " + p2 +

                            ". Before click: " + c2 + ", after click: " + c2b +

                            ", expected is " + south.getBackground());

        EventQueue.invokeAndWait(this::dispose);

    }

}