java.awt.GraphicsDevice Java Examples

public static void printDisplayInfo() {
    int g = 0;
    for (GraphicsDevice gd : GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()) {
        out.println("graphics device #"+(++g)+": "+gd.getIDstring()+" type "+gd.getType());
        out.println("\tavailable accelerated memory " + gd.getAvailableAcceleratedMemory());
        int c = 0;
        for (GraphicsConfiguration gc : gd.getConfigurations()) {
            out.println("\tgraphics configuration #"+(++c)+":");
            out.println("\t\twidth "+gc.getBounds().getWidth()+" height "+gc.getBounds().getHeight());
            out.println("\t\tfull screen "+gc.getBufferCapabilities().isFullScreenRequired());
            ImageCapabilities ic = gc.getImageCapabilities();
            out.println("\t\tis accelerated "+ic.isAccelerated());

        }
        DisplayMode dm = gd.getDisplayMode();   
        out.println("\tdisplay mode bit width "+dm.getWidth()+" height "+dm.getHeight()+" bit depth "+dm.getBitDepth()+" refresh rate "+dm.getRefreshRate());
        int m = 0;
        for (DisplayMode d : gd.getDisplayModes())
            out.println("\talt display mode #"+(++m)+" bit width "+d.getWidth()+" height "+d.getHeight()+" bit depth "+d.getBitDepth()+" refresh rate "+d.getRefreshRate());    
    }
}
 

/**
 * Finds a display mode that is different from the current display
 * mode and is likely to cause a display change event.
 */
private static DisplayMode findDisplayMode(GraphicsDevice gd) {
    DisplayMode dms[] = gd.getDisplayModes();
    DisplayMode currentDM = gd.getDisplayMode();
    for (DisplayMode dm : dms) {
        if (!dm.equals(currentDM) &&
             dm.getRefreshRate() == currentDM.getRefreshRate())
        {
            // different from the current dm and refresh rate is the same
            // means that something else is different => more likely to
            // cause a DM change event
            return dm;
        }
    }
    return null;
}
 

public static void main(String[] args) throws Exception {
    DisplayChangeVITest test = new DisplayChangeVITest();
    GraphicsDevice gd =
        GraphicsEnvironment.getLocalGraphicsEnvironment().
            getDefaultScreenDevice();
    if (gd.isFullScreenSupported()) {
        gd.setFullScreenWindow(test);
        Thread t = new Thread(test);
        t.run();
        synchronized (lock) {
            while (!done) {
                try {
                    lock.wait(50);
                } catch (InterruptedException ex) {
                    ex.printStackTrace();
                }
            }
        }
        System.err.println("Test Passed.");
    } else {
        System.err.println("Full screen not supported. Test passed.");
    }
}
 

public static void main(String[] args) {
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice graphicDevice = ge.getDefaultScreenDevice();
    if (!graphicDevice.isDisplayChangeSupported()) {
        System.err.println("Display mode change is not supported on this host. Test is considered passed.");
        return;
    }
    DisplayMode defaultDisplayMode = graphicDevice.getDisplayMode();
    checkDisplayMode(defaultDisplayMode);
    graphicDevice.setDisplayMode(defaultDisplayMode);

    DisplayMode[] displayModes = graphicDevice.getDisplayModes();
    boolean isDefaultDisplayModeIncluded = false;
    for (DisplayMode displayMode : displayModes) {
        checkDisplayMode(displayMode);
        graphicDevice.setDisplayMode(displayMode);
        if (defaultDisplayMode.equals(displayMode)) {
            isDefaultDisplayModeIncluded = true;
        }
    }

    if (!isDefaultDisplayModeIncluded) {
        throw new RuntimeException("Default display mode is not included");
    }
}
 

private static GraphicsDevice checkConfigs(GraphicsDevice[] devices) {

        GraphicsDevice correctDevice = null;
        if (devices.length < 2) {
            return correctDevice;
        }

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Rectangle screenBounds = new Rectangle(toolkit.getScreenSize());
        int halfScreen = screenBounds.height/2;

        for(int i = 0; i < devices.length; i++) {
            if(devices[i].getType() == GraphicsDevice.TYPE_RASTER_SCREEN) {
                GraphicsConfiguration conf =
                        devices[i].getDefaultConfiguration();
                Rectangle bounds = conf.getBounds();
                if (bounds.y >= halfScreen) {
                    // found
                    correctDevice = devices[i];
                    break;
                }
            }
        }
        return correctDevice;
    }
 

/**
 * Determine whether to use full screen or windowed mode.
 *
 * @param gd The {@code GraphicsDevice} to display to.
 * @param desiredSize An optional window {@code Dimension}.
 * @return Null if full screen is to be used, otherwise a window
 *     bounds {@code Rectangle}
 */
private static boolean checkWindowed(GraphicsDevice gd,
                                     Dimension desiredSize) {
    boolean ret;
    if (desiredSize == null) {
        if (gd.isFullScreenSupported()) {
            logger.info("Full screen mode used.");
            ret = false;
        } else {
            logger.warning("Full screen mode not supported.");
            System.err.println(Messages.message("client.fullScreen"));
            ret = true;
        }
    } else {
        logger.info("Windowed mode used.");
        ret = true;
    }
    return ret;
}
 

@Override
public GraphicsDevice getGraphicsDevice() {
    CGraphicsEnvironment ge = (CGraphicsEnvironment)GraphicsEnvironment.
                              getLocalGraphicsEnvironment();

    LWLightweightFramePeer peer = (LWLightweightFramePeer)getPeer();
    int scale = ((LightweightFrame)peer.getTarget()).getScaleFactor();

    Rectangle bounds = ((LightweightFrame)peer.getTarget()).getHostBounds();
    for (GraphicsDevice d : ge.getScreenDevices()) {
        if (d.getDefaultConfiguration().getBounds().intersects(bounds) &&
            ((CGraphicsDevice)d).getScaleFactor() == scale)
        {
            return d;
        }
    }
    // We shouldn't be here...
    return ge.getDefaultScreenDevice();
}
 

/**
 * Finds a display mode that is different from the current display
 * mode and is likely to cause a display change event.
 */
private static DisplayMode findDisplayMode(GraphicsDevice gd) {
    DisplayMode dms[] = gd.getDisplayModes();
    DisplayMode currentDM = gd.getDisplayMode();
    for (DisplayMode dm : dms) {
        if (!dm.equals(currentDM) &&
             dm.getRefreshRate() == currentDM.getRefreshRate())
        {
            // different from the current dm and refresh rate is the same
            // means that something else is different => more likely to
            // cause a DM change event
            return dm;
        }
    }
    return null;
}
 

static void initScreenBounds() {

        GraphicsDevice[] devices = GraphicsEnvironment
                .getLocalGraphicsEnvironment()
                .getScreenDevices();

        screenBounds = new Rectangle[devices.length];
        scales = new double[devices.length][2];
        for (int i = 0; i < devices.length; i++) {
            GraphicsConfiguration gc = devices[i].getDefaultConfiguration();
            screenBounds[i] = gc.getBounds();
            AffineTransform tx = gc.getDefaultTransform();
            scales[i][0] = tx.getScaleX();
            scales[i][1] = tx.getScaleY();
        }

        maxBounds = screenBounds[0];
        for (int i = 0; i < screenBounds.length; i++) {
            maxBounds = maxBounds.union(screenBounds[i]);
        }
    }
 

/**
 * Finds a display mode that is different from the current display
 * mode and is likely to cause a display change event.
 */
private static DisplayMode findDisplayMode(GraphicsDevice gd) {
    DisplayMode dms[] = gd.getDisplayModes();
    DisplayMode currentDM = gd.getDisplayMode();
    for (DisplayMode dm : dms) {
        if (!dm.equals(currentDM) &&
             dm.getRefreshRate() == currentDM.getRefreshRate())
        {
            // different from the current dm and refresh rate is the same
            // means that something else is different => more likely to
            // cause a DM change event
            return dm;
        }
    }
    return null;
}
 

private static GraphicsDevice checkConfigs(GraphicsDevice[] devices) {

        GraphicsDevice correctDevice = null;
        if (devices.length < 2) {
            return correctDevice;
        }

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Rectangle screenBounds = new Rectangle(toolkit.getScreenSize());
        int halfScreen = screenBounds.height/2;

        for(int i = 0; i < devices.length; i++) {
            if(devices[i].getType() == GraphicsDevice.TYPE_RASTER_SCREEN) {
                GraphicsConfiguration conf =
                        devices[i].getDefaultConfiguration();
                Rectangle bounds = conf.getBounds();
                if (bounds.y >= halfScreen) {
                    // found
                    correctDevice = devices[i];
                    break;
                }
            }
        }
        return correctDevice;
    }
 

/**
 * Initialize the splash screen.
 *
 * @param gd The {@code GraphicsDevice} to display on.
 * @param splashStream An {@code InputStream} to read content from.
 */
public SplashScreen(GraphicsDevice gd, InputStream splashStream)
    throws IOException {
    super(gd.getDefaultConfiguration());
    
    BufferedImage im = ImageIO.read(splashStream);
    this.getContentPane().add(new JLabel(new ImageIcon(im)));
    this.pack();
    this.setVisible(false);

    Point start = this.getLocation();
    DisplayMode dm = gd.getDisplayMode();
    int x = start.x + dm.getWidth()/2 - this.getWidth() / 2;
    int y = start.y + dm.getHeight()/2 - this.getHeight() / 2;
    this.setLocation(x, y);
}
 

public static void main(String[] args) throws Exception {
    DisplayChangeVITest test = new DisplayChangeVITest();
    GraphicsDevice gd =
        GraphicsEnvironment.getLocalGraphicsEnvironment().
            getDefaultScreenDevice();
    if (gd.isFullScreenSupported()) {
        gd.setFullScreenWindow(test);
        Thread t = new Thread(test);
        t.run();
        synchronized (lock) {
            while (!done) {
                try {
                    lock.wait(50);
                } catch (InterruptedException ex) {
                    ex.printStackTrace();
                }
            }
        }
        System.err.println("Test Passed.");
    } else {
        System.err.println("Full screen not supported. Test passed.");
    }
}
 

private static GraphicsDevice checkConfigs(GraphicsDevice[] devices) {

        GraphicsDevice correctDevice = null;
        if (devices.length < 2) {
            return correctDevice;
        }

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Rectangle screenBounds = new Rectangle(toolkit.getScreenSize());
        int halfScreen = screenBounds.height/2;

        for(int i = 0; i < devices.length; i++) {
            if(devices[i].getType() == GraphicsDevice.TYPE_RASTER_SCREEN) {
                GraphicsConfiguration conf =
                        devices[i].getDefaultConfiguration();
                Rectangle bounds = conf.getBounds();
                if (bounds.y >= halfScreen) {
                    // found
                    correctDevice = devices[i];
                    break;
                }
            }
        }
        return correctDevice;
    }
 

private static GraphicsDevice checkConfigs(GraphicsDevice[] devices) {

        GraphicsDevice correctDevice = null;
        if (devices.length < 2) {
            return correctDevice;
        }

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Rectangle screenBounds = new Rectangle(toolkit.getScreenSize());
        int halfScreen = screenBounds.height/2;

        for(int i = 0; i < devices.length; i++) {
            if(devices[i].getType() == GraphicsDevice.TYPE_RASTER_SCREEN) {
                GraphicsConfiguration conf =
                        devices[i].getDefaultConfiguration();
                Rectangle bounds = conf.getBounds();
                if (bounds.y >= halfScreen) {
                    // found
                    correctDevice = devices[i];
                    break;
                }
            }
        }
        return correctDevice;
    }
 

private static GraphicsDevice checkConfigs(GraphicsDevice[] devices) {

        GraphicsDevice correctDevice = null;
        if (devices.length < 2) {
            return correctDevice;
        }

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        Rectangle screenBounds = new Rectangle(toolkit.getScreenSize());
        int halfScreen = screenBounds.height/2;

        for(int i = 0; i < devices.length; i++) {
            if(devices[i].getType() == GraphicsDevice.TYPE_RASTER_SCREEN) {
                GraphicsConfiguration conf =
                        devices[i].getDefaultConfiguration();
                Rectangle bounds = conf.getBounds();
                if (bounds.y >= halfScreen) {
                    // found
                    correctDevice = devices[i];
                    break;
                }
            }
        }
        return correctDevice;
    }
 

public static void main(String[] args) {

        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        GraphicsConfiguration gc = gd.getDefaultConfiguration();
        VolatileImage vi = gc.createCompatibleVolatileImage(16, 16);
        vi.validate(gc);

        BufferedImage bi =
            new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
        int data[] = ((DataBufferInt)bi.getRaster().getDataBuffer()).getData();
        data[0] = 0x0000007f;
        data[1] = 0x0000007f;
        data[2] = 0xff00007f;
        data[3] = 0xff00007f;
        Graphics2D g = vi.createGraphics();
        g.setComposite(AlphaComposite.SrcOver.derive(0.999f));
        g.drawImage(bi, 0, 0, null);

        bi = vi.getSnapshot();
        if (bi.getRGB(0, 0) != bi.getRGB(1, 1)) {
            throw new RuntimeException("Test FAILED: color at 0x0 ="+
                Integer.toHexString(bi.getRGB(0, 0))+" differs from 1x1 ="+
                Integer.toHexString(bi.getRGB(1,1)));
        }

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

public static void main(String[] args) {

        GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = ge.getDefaultScreenDevice();
        GraphicsConfiguration gc = gd.getDefaultConfiguration();
        VolatileImage vi = gc.createCompatibleVolatileImage(16, 16);
        vi.validate(gc);

        BufferedImage bi =
            new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
        int data[] = ((DataBufferInt)bi.getRaster().getDataBuffer()).getData();
        data[0] = 0x0000007f;
        data[1] = 0x0000007f;
        data[2] = 0xff00007f;
        data[3] = 0xff00007f;
        Graphics2D g = vi.createGraphics();
        g.setComposite(AlphaComposite.SrcOver.derive(0.999f));
        g.drawImage(bi, 0, 0, null);

        bi = vi.getSnapshot();
        if (bi.getRGB(0, 0) != bi.getRGB(1, 1)) {
            throw new RuntimeException("Test FAILED: color at 0x0 ="+
                Integer.toHexString(bi.getRGB(0, 0))+" differs from 1x1 ="+
                Integer.toHexString(bi.getRGB(1,1)));
        }

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

public static CGLGraphicsConfig getGC(CPlatformView pView) {
    if (pView != null) {
        return (CGLGraphicsConfig)pView.getGraphicsConfiguration();
    } else {
        // REMIND: this should rarely (never?) happen, but what if
        // default config is not CGL?
        GraphicsEnvironment env = GraphicsEnvironment
            .getLocalGraphicsEnvironment();
        GraphicsDevice gd = env.getDefaultScreenDevice();
        return (CGLGraphicsConfig) gd.getDefaultConfiguration();
    }
}
 

/**
 * Returns an array of all of the screen devices.
 */
public synchronized GraphicsDevice[] getScreenDevices() {
    GraphicsDevice[] ret = screens;
    if (ret == null) {
        int num = getNumScreens();
        ret = new GraphicsDevice[num];
        for (int i = 0; i < num; i++) {
            ret[i] = makeScreenDevice(i);
        }
        screens = ret;
    }
    return ret;
}
 

@Override
public boolean isFlipStrategyPreferred(ComponentPeer peer) {
    GraphicsConfiguration gc;
    if (peer != null && (gc = peer.getGraphicsConfiguration()) != null) {
        GraphicsDevice gd = gc.getDevice();
        if (gd instanceof D3DGraphicsDevice) {
            return ((D3DGraphicsDevice)gd).isD3DEnabledOnDevice();
        }
    }
    return false;
}
 

private void checkEffects() {
    GraphicsDevice gd = getGraphicsConfiguration().getDevice();
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.PERPIXEL_TRANSPARENT)) {
        shapedCb.setEnabled(false);
    }
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.TRANSLUCENT)) {
        transparencySld.setEnabled(false);
    }
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.PERPIXEL_TRANSLUCENT)) {
        nonOpaqueChb.setEnabled(false);
    }
}
 

/**
 * Return the bounds of a GraphicsDevice, less its screen insets.
 * See also java.awt.GraphicsEnvironment.getUsableBounds();
 */
public static Rectangle getUsableBounds(GraphicsDevice gd) {
    GraphicsConfiguration gc = gd.getDefaultConfiguration();
    Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc);
    Rectangle usableBounds = gc.getBounds();

    usableBounds.x += insets.left;
    usableBounds.y += insets.top;
    usableBounds.width -= (insets.left + insets.right);
    usableBounds.height -= (insets.top + insets.bottom);

    return usableBounds;
}
 

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

        final CountDownLatch latch = new CountDownLatch(1);
        final boolean [] result = new boolean[1];

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = createGUI();
                GraphicsDevice[] devices = checkScreens();

                // check if we have more than one and if they are stacked
                // vertically
                GraphicsDevice device = checkConfigs(devices);
                if (device == null) {
                    // just pass the test
                    frame.dispose();
                    result[0] = true;
                    latch.countDown();
                } else {
                    FrameListener listener =
                            new FrameListener(device, latch, result);
                    frame.addComponentListener(listener);
                    frame.setVisible(true);
                }
            }
        });

        latch.await();

        if (result[0] == false) {
            throw new RuntimeException("popup menu rendered in wrong position");
        }

        System.out.println("OK");
    }
 

public static void main(String[] args) {
    GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gd = ge.getDefaultScreenDevice();
    GraphicsConfiguration gc = gd.getDefaultConfiguration();
    testGC(gc);

    if (failed) {
        throw new RuntimeException("Test FAILED. See err output for more");
    }

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

void showDebugDialog() {
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice defaultScreen = ge.getDefaultScreenDevice();
    Rectangle rect = defaultScreen.getDefaultConfiguration().getBounds();
    pack();
    setLocation((int) rect.getCenterX(), Canvas.Window.winStart.y);
    setAlwaysOnTop(true);
    setVisible(true);
}
 

protected GraphicsDevice makeScreenDevice(int screennum) {
    GraphicsDevice device = null;
    if (WindowsFlags.isD3DEnabled()) {
        device = D3DGraphicsDevice.createDevice(screennum);
    }
    if (device == null) {
        device = new Win32GraphicsDevice(screennum);
    }
    return device;
}
 

public static int totalScreenHeight() {
	int h = 0;
	GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
	GraphicsDevice[] gs = ge.getScreenDevices();
	for(GraphicsDevice curGs : gs)
	{
		DisplayMode dm = curGs.getDisplayMode();
		h += dm.getHeight();
	}
	return h;
}
 

private void checkEffects() {
    GraphicsDevice gd = getGraphicsConfiguration().getDevice();
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.PERPIXEL_TRANSPARENT)) {
        shapedCb.setEnabled(false);
    }
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.TRANSLUCENT)) {
        transparencySld.setEnabled(false);
    }
    if (!gd.isWindowTranslucencySupported(WindowTranslucency.PERPIXEL_TRANSLUCENT)) {
        nonOpaqueChb.setEnabled(false);
    }
}
 

public static GLXGraphicsConfig getGC(X11ComponentPeer peer) {
    if (peer != null) {
        return (GLXGraphicsConfig)peer.getGraphicsConfiguration();
    } else {
        // REMIND: this should rarely (never?) happen, but what if
        //         default config is not GLX?
        GraphicsEnvironment env =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = env.getDefaultScreenDevice();
        return (GLXGraphicsConfig)gd.getDefaultConfiguration();
    }
}