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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 5041225
 * @key headful
 * @summary Tests that we can set a display mode with unknown refresh rate
 *          if corresponding system display mode (with equal w/h/d) is available.
 * @run main DisplayModeNoRefreshTest
 */

import java.awt.Color;
import java.awt.DisplayMode;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;

public class DisplayModeNoRefreshTest extends Frame {

    private static DisplayModeNoRefreshTest fs;

    private static final GraphicsDevice gd =
            GraphicsEnvironment.getLocalGraphicsEnvironment()
                               .getDefaultScreenDevice();

    private static final DisplayMode origMode = gd.getDisplayMode();

    public DisplayModeNoRefreshTest() {
        super("DisplayModeNoRefreshTest");
        if (!gd.isFullScreenSupported()) {
            System.out.println("Full Screen is not supported, test considered passed.");
            return;
        }
        setBackground(Color.green);
        gd.setFullScreenWindow(this);
        DisplayMode dlMode = getNoRefreshDisplayMode(gd.getDisplayModes());
        if (dlMode != null) {
            System.out.println("Selected Display Mode: " +
                               " Width " + dlMode.getWidth() +
                               " Height " + dlMode.getHeight() +
                               " BitDepth " + dlMode.getBitDepth() +
                               " Refresh Rate " + dlMode.getRefreshRate());
            try {
                gd.setDisplayMode(dlMode);
            } catch (IllegalArgumentException ex) {
                throw new RuntimeException("Test Failed due to IAE", ex);
            }
        } else {
            System.out.println("No suitable display mode available, test considered passed.");
            return;
        }

        try { Thread.sleep(2000); } catch (InterruptedException e) {}

        System.out.println("Test Passed.");
    }

    public DisplayMode getNoRefreshDisplayMode(DisplayMode dm[]) {
        DisplayMode mode = new DisplayMode(640, 480, 32, DisplayMode.REFRESH_RATE_UNKNOWN);
        int i = 0;
        for (i = 0; i < dm.length; i++) {
            if (mode.getWidth() == dm[i].getWidth()
                && mode.getHeight() == dm[i].getHeight()
                && mode.getBitDepth() == dm[i].getBitDepth()) {
                return mode;
            }
        }
        if (dm.length > 0) {
            return
                new DisplayMode(dm[0].getWidth(), dm[0].getHeight(),
                                dm[0].getBitDepth(),
                                DisplayMode.REFRESH_RATE_UNKNOWN);
        }

        return null;
    }

    public static void main(String[] args) throws Exception {
        try {
            EventQueue.invokeAndWait(() -> {
                System.setProperty("sun.java2d.noddraw", "true");
                fs = new DisplayModeNoRefreshTest();
            });
        } finally {
            gd.setDisplayMode(origMode);
            EventQueue.invokeAndWait(() -> {
                if (fs != null) {
                    fs.dispose();
                }
            });
        }
    }
}