Java Code Examples for java.awt.GraphicsEnvironment#getLocalGraphicsEnvironment()

/**
    * Returns the ScreenBounds
    * 
    * @return Array of {@link Rectangle}'s
    */
   public static Rectangle[] getScreenBounds() {
GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment
	.getLocalGraphicsEnvironment();
final GraphicsDevice[] screenDevices = graphicsEnvironment
	.getScreenDevices();
Rectangle[] screenBounds = new Rectangle[screenDevices.length];
for (int i = 0; i < screenDevices.length; i++) {
    GraphicsDevice screenDevice = screenDevices[i];
    final GraphicsConfiguration defaultConfiguration = screenDevice
	    .getDefaultConfiguration();
    screenBounds[i] = defaultConfiguration.getBounds();
}

return screenBounds;
   }
 

public static void main(String[] args) throws Exception {
    String os = System.getProperty("os.name");
    if (!os.startsWith("Mac")) {
         return;
    }
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    Font[] fonts = ge.getAllFonts();
    for (int i=0; i<fonts.length; i++) {
        if (fonts[i].getPSName().equals("Helvetica-LightOblique")) {
             helvFont = fonts[i];
             break;
        }
    }
    if (helvFont == null) {
        return;
    }
    final HelvLtOblTest test = new HelvLtOblTest();
    SwingUtilities.invokeLater(() -> {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add("Center", test);
        f.pack();
        f.setVisible(true);
    });
    test.compareImages();
}
 

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");
    }
}
 

/**
 * Centers window on desktop.
 * <p>
 * 
 * @param aFrame the Frame to center
 */
private static void center(JFrame aFrame) {
	final GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
	final Point centerPoint = ge.getCenterPoint();
	final Rectangle bounds = ge.getMaximumWindowBounds();
	final int w = Math.min(aFrame.getWidth(), bounds.width);
	final int h = Math.min(aFrame.getHeight(), bounds.height);
	final int x = centerPoint.x - (w / 2);
	final int y = centerPoint.y - (h / 2);
	aFrame.setBounds(x, y, w, h);
	if ((w == bounds.width) && (h == bounds.height)) {
		aFrame.setExtendedState(Frame.MAXIMIZED_BOTH);
	}
	aFrame.validate();
}
 

public static void main(final String[] args) throws Exception {
    robot = new Robot();
    robot.setAutoDelay(100);
    robot.setAutoWaitForIdle(true);
    GraphicsEnvironment ge =
            GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice[] sds = ge.getScreenDevices();
    UIManager.LookAndFeelInfo[] lookAndFeelArray =
            UIManager.getInstalledLookAndFeels();
    for (UIManager.LookAndFeelInfo lookAndFeelItem : lookAndFeelArray) {
        System.setProperty(PROPERTY_NAME, "true");
        step(sds, lookAndFeelItem);
        if (lookAndFeelItem.getClassName().contains("Aqua")) {
            System.setProperty(PROPERTY_NAME, "false");
            step(sds, lookAndFeelItem);
        }
    }
}
 

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");
    }
}
 

public static void fullScreen(Window w)
{
	GraphicsEnvironment env = GraphicsEnvironment
			.getLocalGraphicsEnvironment();
	for (GraphicsDevice device : env.getScreenDevices())
	{
		if (device.isFullScreenSupported())
		{
			device.setFullScreenWindow(w);
			return;
		}
	}
	MainPane.getTipCom().warn("No supported device for fullscreen mode.");
}
 

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

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

       Frame frame = new Frame();
        final Toolkit toolkit = Toolkit.getDefaultToolkit();
        final GraphicsEnvironment graphicsEnvironment =
                GraphicsEnvironment.getLocalGraphicsEnvironment();
        final GraphicsDevice graphicsDevice =
                graphicsEnvironment.getDefaultScreenDevice();

        final Dimension screenSize = toolkit.getScreenSize();
        final Insets screenInsets = toolkit.getScreenInsets(
                graphicsDevice.getDefaultConfiguration());

        final Rectangle availableScreenBounds = new Rectangle(screenSize);

        availableScreenBounds.x += screenInsets.left;
        availableScreenBounds.y += screenInsets.top;
        availableScreenBounds.width -= (screenInsets.left + screenInsets.right);
        availableScreenBounds.height -= (screenInsets.top + screenInsets.bottom);

        frame.setBounds(availableScreenBounds.x, availableScreenBounds.y,
                availableScreenBounds.width, availableScreenBounds.height);
        frame.setVisible(true);

        Rectangle frameBounds = frame.getBounds();
        frame.setExtendedState(Frame.MAXIMIZED_BOTH);
        ((SunToolkit) toolkit).realSync();

        Rectangle maximizedFrameBounds = frame.getBounds();
        if (maximizedFrameBounds.width < frameBounds.width
                || maximizedFrameBounds.height < frameBounds.height) {
            throw new RuntimeException("Maximized frame is smaller than non maximized");
        }
    }
 

public static final boolean isLocationInScreenBounds(int x, int y) {
   // From:
   // http://www.java2s.com/Code/Java/Swing-JFC/Verifiesifthegivenpointisvisibleonthescreen.htm
   
   // Check if the location is in the bounds of one of the graphics devices.
   GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
   GraphicsDevice[] graphicsDevices = graphicsEnvironment.getScreenDevices();
   Rectangle graphicsConfigurationBounds = new Rectangle();
   
   // Iterate over the graphics devices.
   for (int j = 0; j < graphicsDevices.length; j++) {
      
      // Get the bounds of the device.
      GraphicsDevice graphicsDevice = graphicsDevices[j];
      graphicsConfigurationBounds.setRect(graphicsDevice.getDefaultConfiguration().getBounds());
      
      // Is the location in this bounds?
      graphicsConfigurationBounds.setRect(graphicsConfigurationBounds.x, graphicsConfigurationBounds.y,
            graphicsConfigurationBounds.width, graphicsConfigurationBounds.height);
      if (graphicsConfigurationBounds.contains(x, y)) {
         
         // The location is in this screengraphics.
         return true;
         
      }
      
   }
   
   // We could not find a device that contains the given point.
   return false;
}
 

protected VolatileSurfaceManager(SunVolatileImage vImg, Object context) {
    this.vImg = vImg;
    this.context = context;

    GraphicsEnvironment ge =
        GraphicsEnvironment.getLocalGraphicsEnvironment();
    // We could have a HeadlessGE at this point, so double-check before
    // assuming anything.
    if (ge instanceof SunGraphicsEnvironment) {
        ((SunGraphicsEnvironment)ge).addDisplayChangedListener(this);
    }
}
 

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

private static VolatileImage makeVI(final int type) {
    final GraphicsEnvironment ge = GraphicsEnvironment
            .getLocalGraphicsEnvironment();
    final GraphicsDevice gd = ge.getDefaultScreenDevice();
    final GraphicsConfiguration gc = gd.getDefaultConfiguration();
    return gc.createCompatibleVolatileImage(SIZE, SIZE, type);
}
 

private static D3DGraphicsConfig getGC(WComponentPeer peer) {
    GraphicsConfiguration gc;
    if (peer != null) {
        gc =  peer.getGraphicsConfiguration();
    } else {
        GraphicsEnvironment env =
                GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice gd = env.getDefaultScreenDevice();
        gc = gd.getDefaultConfiguration();
    }
    return (gc instanceof D3DGraphicsConfig) ? (D3DGraphicsConfig)gc : null;
}
 

public static void main(final String[] args) throws IOException {
    GraphicsEnvironment ge = GraphicsEnvironment
            .getLocalGraphicsEnvironment();
    GraphicsConfiguration gc = ge.getDefaultScreenDevice()
                                 .getDefaultConfiguration();
    AffineTransform at;
    for (final int size : SIZES) {
        for (final int scale : SCALES) {
            final int sw = size * scale;
            at = AffineTransform.getScaleInstance(sw, sw);
            for (Shape clip : SHAPES) {
                clip = at.createTransformedShape(clip);
                for (Shape to : SHAPES) {
                    to = at.createTransformedShape(to);
                    // Prepare test images
                    VolatileImage vi = getVolatileImage(gc, size);
                    BufferedImage bi = getBufferedImage(sw);
                    // Prepare gold images
                    BufferedImage goldvi = getCompatibleImage(gc, size);
                    BufferedImage goldbi = getBufferedImage(sw);
                    draw(clip, to, vi, bi, scale);
                    draw(clip, to, goldvi, goldbi, scale);
                    validate(bi, goldbi);
                }
            }
        }
    }
}
 

public static void main(String[] args) {
    GraphicsEnvironment.getLocalGraphicsEnvironment();
}
 

public static void main(final String[] args) throws IOException {
    GraphicsEnvironment ge = GraphicsEnvironment
            .getLocalGraphicsEnvironment();
    GraphicsConfiguration gc = ge.getDefaultScreenDevice()
                                 .getDefaultConfiguration();
    AffineTransform at;
    for (int size : SIZES) {
        at = AffineTransform.getScaleInstance(size, size);
        for (Shape clip : SHAPES) {
            clip = at.createTransformedShape(clip);
            for (Shape to : SHAPES) {
                to = at.createTransformedShape(to);
                // Prepare test images
                BufferedImage snapshot;
                BufferedImage bi = getBufferedImage(size);
                VolatileImage vi = getVolatileImage(gc, size);
                while (true) {
                    vi.validate(gc);
                    Graphics2D g2d = vi.createGraphics();
                    g2d.setColor(Color.GREEN);
                    g2d.fillRect(0, 0, size, size);
                    g2d.dispose();
                    if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
                        continue;
                    }
                    draw(clip, to, bi, vi);
                    snapshot = vi.getSnapshot();
                    if (vi.contentsLost()) {
                        continue;
                    }
                    break;
                }
                // Prepare gold images
                BufferedImage goldvi = getCompatibleImage(gc, size);
                BufferedImage goldbi = getBufferedImage(size);
                draw(clip, to, goldbi, goldvi);
                validate(snapshot, goldvi);
                vi.flush();
            }
        }
    }
}
 

/**
 * Standard constructor - builds a FontChooserPanel initialised with the
 * specified font.
 *
 * @param font  the initial font to display.
 */
public FontChooserPanel(Font font) {

    GraphicsEnvironment g = GraphicsEnvironment.getLocalGraphicsEnvironment();
    String[] fonts = g.getAvailableFontFamilyNames();

    setLayout(new BorderLayout());
    JPanel right = new JPanel(new BorderLayout());

    JPanel fontPanel = new JPanel(new BorderLayout());
    fontPanel.setBorder(BorderFactory.createTitledBorder(
                        BorderFactory.createEtchedBorder(),
                        localizationResources.getString("Font")));
    this.fontlist = new JList(fonts);
    JScrollPane fontpane = new JScrollPane(this.fontlist);
    fontpane.setBorder(BorderFactory.createEtchedBorder());
    fontPanel.add(fontpane);
    add(fontPanel);

    JPanel sizePanel = new JPanel(new BorderLayout());
    sizePanel.setBorder(BorderFactory.createTitledBorder(
                        BorderFactory.createEtchedBorder(),
                        localizationResources.getString("Size")));
    this.sizelist = new JList(SIZES);
    JScrollPane sizepane = new JScrollPane(this.sizelist);
    sizepane.setBorder(BorderFactory.createEtchedBorder());
    sizePanel.add(sizepane);

    JPanel attributes = new JPanel(new GridLayout(1, 2));
    this.bold = new JCheckBox(localizationResources.getString("Bold"));
    this.italic = new JCheckBox(localizationResources.getString("Italic"));
    attributes.add(this.bold);
    attributes.add(this.italic);
    attributes.setBorder(BorderFactory.createTitledBorder(
            BorderFactory.createEtchedBorder(),
            localizationResources.getString("Attributes")));

    right.add(sizePanel, BorderLayout.CENTER);
    right.add(attributes, BorderLayout.SOUTH);

    add(right, BorderLayout.EAST);

    setSelectedFont(font);
}
 

public static void main(String args[]) throws Exception {
     System.out.println("Default Charset = "
         + Charset.defaultCharset().name());
     System.out.println("Locale = " + Locale.getDefault());
     String os = System.getProperty("os.name");
     String encoding = System.getProperty("file.encoding");
     /* Want to test the JA locale uses alternate font for DialogInput. */
     boolean jaTest = encoding.equalsIgnoreCase("windows-31j");
     if (!os.startsWith("Win") && jaTest) {
         System.out.println("Skipping Windows only test");
         return;
     }

     String className = "sun.java2d.SunGraphicsEnvironment";
     String methodName = "useAlternateFontforJALocales";
     Class sge = Class.forName(className);
     Method uafMethod = sge.getMethod(methodName, (Class[])null);
     Object ret = uafMethod.invoke(null);
     GraphicsEnvironment ge =
         GraphicsEnvironment.getLocalGraphicsEnvironment();
     ge.preferLocaleFonts();
     ge.preferProportionalFonts();
     if (jaTest) {
         Font msMincho = new Font("MS Mincho", Font.PLAIN, 12);
         if (!msMincho.getFamily(Locale.ENGLISH).equals("MS Mincho")) {
              System.out.println("MS Mincho not installed. Skipping test");
              return;
         }
         Font dialogInput = new Font("DialogInput", Font.PLAIN, 12);
         Font courierNew = new Font("Courier New", Font.PLAIN, 12);
         Font msGothic = new Font("MS Gothic", Font.PLAIN, 12);
         BufferedImage bi = new BufferedImage(1,1,1);
         Graphics2D g2d = bi.createGraphics();
         FontMetrics cnMetrics = g2d.getFontMetrics(courierNew);
         FontMetrics diMetrics = g2d.getFontMetrics(dialogInput);
         FontMetrics mmMetrics = g2d.getFontMetrics(msMincho);
         FontMetrics mgMetrics = g2d.getFontMetrics(msGothic);
         // This tests to make sure we at least have applied
         //  "preferLocaleFonts for Japanese
         if (cnMetrics.charWidth('A') == diMetrics.charWidth('A')) {
              throw new RuntimeException
                    ("Courier New should not be used for DialogInput");
         }
         // This is supposed to make sure we are using MS Mincho instead
         //  of MS Gothic. However they are metrics identical so its
         // not definite proof.
         if (diMetrics.charWidth('A') != mmMetrics.charWidth('A')) {
              throw new RuntimeException
                  ("MS Mincho should be used for DialogInput");
         }
    }
}
 

public static void main(String[] args) {
    GraphicsEnvironment ge =
        GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gd = ge.getDefaultScreenDevice();
    GraphicsConfiguration gc = gd.getDefaultConfiguration();
    VolatileImage vi = gc.createCompatibleVolatileImage(100, 100);
    vi.validate(gc);
    VolatileImage vi1 = gc.createCompatibleVolatileImage(100, 100);
    vi1.validate(gc);

    if (!(vi instanceof DestSurfaceProvider)) {
        System.out.println("Test considered PASSED: no HW acceleration");
        return;
    }

    DestSurfaceProvider p = (DestSurfaceProvider)vi;
    Surface s = p.getDestSurface();
    if (!(s instanceof AccelSurface)) {
        System.out.println("Test considered PASSED: no HW acceleration");
        return;
    }
    AccelSurface dst = (AccelSurface)s;

    Graphics g = vi.createGraphics();
    g.drawImage(vi1, 95, 95, null);
    g.setColor(Color.red);
    g.fillRect(0, 0, 100, 100);
    g.setColor(Color.black);
    g.fillRect(0, 0, 100, 100);
    // after this the validated context color is black

    RenderQueue rq = dst.getContext().getRenderQueue();
    rq.lock();
    try {
        dst.getContext().saveState();
        dst.getContext().restoreState();
    } finally {
        rq.unlock();
    }

    // this will cause ResetPaint (it will set color to extended EA=ff,
    // which is ffffffff==Color.white)
    g.drawImage(vi1, 95, 95, null);

    // now try filling with black again, but it will come up as white
    // because this fill rect won't validate the color properly
    g.setColor(Color.black);
    g.fillRect(0, 0, 100, 100);

    BufferedImage bi = vi.getSnapshot();
    if (bi.getRGB(50, 50) != Color.black.getRGB()) {
        throw new RuntimeException("Test FAILED: found color="+
            Integer.toHexString(bi.getRGB(50, 50))+" instead of "+
            Integer.toHexString(Color.black.getRGB()));
    }

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