Java Code Examples for java.awt.Robot#getPixelColor()

public static void main(final String[] args) throws AWTException {
    final Window window = new BackgroundIsNotUpdated(null);
    window.setSize(300, 300);
    window.setLocationRelativeTo(null);
    window.setVisible(true);
    sleep();
    window.setBackground(Color.GREEN);
    sleep();
    final Robot robot = new Robot();
    robot.setAutoDelay(200);
    Point point = window.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + window.getWidth() / 2,
                                      point.y + window.getHeight() / 2);
    window.dispose();
    if (!color.equals(Color.GREEN)) {
        throw new RuntimeException(
                "Expected: " + Color.GREEN + " , Actual: " + color);
    }
}
 

public static void main(final String[] args) throws AWTException {
    final Window window = new BackgroundIsNotUpdated(null);
    window.setSize(300, 300);
    window.setLocationRelativeTo(null);
    window.setVisible(true);
    sleep();
    window.setBackground(Color.GREEN);
    sleep();
    final Robot robot = new Robot();
    robot.setAutoDelay(200);
    Point point = window.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + window.getWidth() / 2,
                                      point.y + window.getHeight() / 2);
    window.dispose();
    if (!color.equals(Color.GREEN)) {
        throw new RuntimeException(
                "Expected: " + Color.GREEN + " , Actual: " + color);
    }
}
 

static void testSplash(ImageInfo test) throws Exception {
    SplashScreen splashScreen = SplashScreen.getSplashScreen();

    if (splashScreen == null) {
        throw new RuntimeException("Splash screen is not shown!");
    }

    Graphics2D g = splashScreen.createGraphics();
    Rectangle splashBounds = splashScreen.getBounds();
    int screenX = (int) splashBounds.getCenterX();
    int screenY = (int) splashBounds.getCenterY();

    if(splashBounds.width != IMAGE_WIDTH){
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong width");
    }
    if(splashBounds.height != IMAGE_HEIGHT){
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong height");
    }

    Robot robot = new Robot();
    Color splashScreenColor = robot.getPixelColor(screenX, screenY);

    float scaleFactor = getScaleFactor();
    Color testColor = (1 < scaleFactor) ? test.color2x : test.color1x;

    if (!compare(testColor, splashScreenColor)) {
        throw new RuntimeException(
                "Image with wrong resolution is used for splash screen!");
    }
}
 

public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

public static void main(String[] args) throws Exception {
    Robot robot = new Robot();
    robot.setAutoDelay(50);

    SwingUtilities.invokeAndWait(() -> createAndShowGUI());
    robot.waitForIdle();

    SwingUtilities.invokeAndWait(() -> {
        scale = frame.getGraphicsConfiguration().getDefaultTransform()
                .getScaleX();
        Point location = frame.getLocation();
        Dimension size = frame.getSize();
        centerX = location.x + size.width / 2;
        centerY = location.y + size.height / 2;
    });
    robot.waitForIdle();

    robot.mouseMove(centerX, centerY);
    robot.mousePress(InputEvent.BUTTON1_MASK);
    robot.waitForIdle();
    Thread.sleep(100);
    Color color = robot.getPixelColor(centerX, centerY);
    robot.mouseRelease(InputEvent.BUTTON1_MASK);

    SwingUtilities.invokeAndWait(() -> frame.dispose());

    if ((scale == 1 && !similar(color, COLOR_1X))
            || (scale == 2 && !similar(color, COLOR_2X))) {
        throw new RuntimeException("Colors are different!");
    }
}
 

public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

static void testSplash(ImageInfo test) throws Exception {
    SplashScreen splashScreen = SplashScreen.getSplashScreen();

    if (splashScreen == null) {
        throw new RuntimeException("Splash screen is not shown!");
    }

    Graphics2D g = splashScreen.createGraphics();
    Rectangle splashBounds = splashScreen.getBounds();
    int screenX = (int) splashBounds.getCenterX();
    int screenY = (int) splashBounds.getCenterY();

    if(splashBounds.width != IMAGE_WIDTH){
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong width");
    }
    if(splashBounds.height != IMAGE_HEIGHT){
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong height");
    }

    Robot robot = new Robot();
    Color splashScreenColor = robot.getPixelColor(screenX, screenY);

    float scaleFactor = getScaleFactor();
    Color testColor = (1 < scaleFactor) ? test.color2x : test.color1x;

    if (!compare(testColor, splashScreenColor)) {
        throw new RuntimeException(
                "Image with wrong resolution is used for splash screen!");
    }
}
 

public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

private static void runTest(Dialog dialog, Frame frame) {
    try {
        Robot robot = new Robot();
        robot.setAutoDelay(50);
        robot.mouseMove(300, 300);

        while (!dialog.isVisible()) {
            sleep();
        }

        Rectangle dialogBounds = dialog.getBounds();
        Rectangle frameBounds = frame.getBounds();

        int y1 = dialogBounds.y + dialogBounds.height;
        int y2 = frameBounds.y + frameBounds.height;

        int clickX = frameBounds.x + frameBounds.width / 2;
        int clickY = y1 + (y2 - y1) / 2;

        robot.mouseMove(clickX, clickY);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);
        sleep();

        int colorX = dialogBounds.x + dialogBounds.width / 2;
        int colorY = dialogBounds.y + dialogBounds.height / 2;

        Color color = robot.getPixelColor(colorX, colorY);

        dialog.dispose();
        frame.dispose();

        if (!DIALOG_COLOR.equals(color)) {
            throw new RuntimeException("The frame is on top"
                    + " of the modal dialog!");
        }
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}
 

private static void runTest(Dialog dialog, Frame frame) {
    try {
        Robot robot = new Robot();
        robot.setAutoDelay(50);
        robot.mouseMove(300, 300);

        while (!dialog.isVisible()) {
            sleep();
        }

        Rectangle dialogBounds = dialog.getBounds();
        Rectangle frameBounds = frame.getBounds();

        int y1 = dialogBounds.y + dialogBounds.height;
        int y2 = frameBounds.y + frameBounds.height;

        int clickX = frameBounds.x + frameBounds.width / 2;
        int clickY = y1 + (y2 - y1) / 2;

        robot.mouseMove(clickX, clickY);
        robot.mousePress(InputEvent.BUTTON1_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_MASK);
        sleep();

        int colorX = dialogBounds.x + dialogBounds.width / 2;
        int colorY = dialogBounds.y + dialogBounds.height / 2;

        Color color = robot.getPixelColor(colorX, colorY);

        dialog.dispose();
        frame.dispose();

        if (!DIALOG_COLOR.equals(color)) {
            throw new RuntimeException("The frame is on top"
                    + " of the modal dialog!");
        }
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}
 

public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

static void testSplash(ImageInfo test) throws Exception {
    SplashScreen splashScreen = SplashScreen.getSplashScreen();

    if (splashScreen == null) {
        throw new RuntimeException("Splash screen is not shown!");
    }

    Graphics2D g = splashScreen.createGraphics();
    Rectangle splashBounds = splashScreen.getBounds();
    int screenX = (int) splashBounds.getCenterX();
    int screenY = (int) splashBounds.getCenterY();
    if (splashBounds.width != IMAGE_WIDTH) {
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong width");
    }
    if (splashBounds.height != IMAGE_HEIGHT) {
        throw new RuntimeException(
                "SplashScreen#getBounds has wrong height");
    }

    Robot robot = new Robot();
    Color splashScreenColor = robot.getPixelColor(screenX, screenY);
    float scaleFactor = getScaleFactor();
    Color testColor = (1 < scaleFactor) ? test.color2x : test.color1x;

    if (!compare(testColor, splashScreenColor)) {
        throw new RuntimeException(
                "Image with wrong resolution is used for splash screen!");
    }
}
 

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

        // Windows only test
        if (OSInfo.getOSType() == OSInfo.OSType.WINDOWS) {

            // Retrieving top edge of Desktop
            GraphicsConfiguration grConf = GraphicsEnvironment
                    .getLocalGraphicsEnvironment().getDefaultScreenDevice()
                    .getDefaultConfiguration();
            Rectangle scrRect = grConf.getBounds();
            Insets scrInsets = Toolkit.getDefaultToolkit().getScreenInsets(grConf);
            scrTop = scrRect.y + scrInsets.top;

            color = new Color(0, 255, 0);

            SwingUtilities.invokeAndWait(() -> {
                createAndShowUI();
            });

            try {
                Robot robot = new Robot();
                robot.setAutoDelay(500);
                robot.setAutoWaitForIdle(true);
                robot.delay(1000);

                // Resizing a window to invoke Windows Snap feature
                readFrameInfo();
                robot.mouseMove(frLoc.x + frSize.width / 2, frLoc.y);
                robot.mousePress(InputEvent.BUTTON1_MASK);
                robot.mouseMove(frLoc.x + frSize.width / 2, scrTop);
                robot.mouseRelease(InputEvent.BUTTON1_MASK);

                // Retrieving the color of window expanded area
                readFrameInfo();
                Insets insets = frame.getInsets();
                Color bgColor = robot.getPixelColor(frLoc.x + frSize.width / 2,
                        frLoc.y + frSize.height - insets.bottom - 1);

                frame.dispose();

                if (!bgColor.equals(color)) {
                    throw new RuntimeException("TEST FAILED: got "
                            + bgColor + " instead of " + color);
                }
                System.out.println("TEST PASSED!");
            } catch (AWTException ex) {
                throw new RuntimeException("TEST FAILED!");
            }
        }
    }
 

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

        // Windows only test
        if (OSInfo.getOSType() == OSInfo.OSType.WINDOWS) {

            // Retrieving top edge of Desktop
            GraphicsConfiguration grConf = GraphicsEnvironment
                    .getLocalGraphicsEnvironment().getDefaultScreenDevice()
                    .getDefaultConfiguration();
            Rectangle scrRect = grConf.getBounds();
            Insets scrInsets = Toolkit.getDefaultToolkit().getScreenInsets(grConf);
            scrTop = scrRect.y + scrInsets.top;

            color = new Color(0, 255, 0);

            SwingUtilities.invokeAndWait(() -> {
                createAndShowUI();
            });

            try {
                Robot robot = new Robot();
                robot.setAutoDelay(500);
                robot.setAutoWaitForIdle(true);
                robot.delay(1000);

                // Resizing a window to invoke Windows Snap feature
                readFrameInfo();
                robot.mouseMove(frLoc.x + frSize.width / 2, frLoc.y);
                robot.mousePress(InputEvent.BUTTON1_MASK);
                robot.mouseMove(frLoc.x + frSize.width / 2, scrTop);
                robot.mouseRelease(InputEvent.BUTTON1_MASK);

                // Retrieving the color of window expanded area
                readFrameInfo();
                Insets insets = frame.getInsets();
                Color bgColor = robot.getPixelColor(frLoc.x + frSize.width / 2,
                        frLoc.y + frSize.height - insets.bottom - 1);

                frame.dispose();

                if (!bgColor.equals(color)) {
                    throw new RuntimeException("TEST FAILED: got "
                            + bgColor + " instead of " + color);
                }
                System.out.println("TEST PASSED!");
            } catch (AWTException ex) {
                throw new RuntimeException("TEST FAILED!");
            }
        }
    }
 

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

        // Windows only test
        if (OSInfo.getOSType() == OSInfo.OSType.WINDOWS) {

            // Retrieving top edge of Desktop
            GraphicsConfiguration grConf = GraphicsEnvironment
                    .getLocalGraphicsEnvironment().getDefaultScreenDevice()
                    .getDefaultConfiguration();
            Rectangle scrRect = grConf.getBounds();
            Insets scrInsets = Toolkit.getDefaultToolkit().getScreenInsets(grConf);
            scrTop = scrRect.y + scrInsets.top;

            color = new Color(0, 255, 0);

            SwingUtilities.invokeAndWait(() -> {
                createAndShowUI();
            });

            try {
                Robot robot = new Robot();
                robot.setAutoDelay(500);
                robot.setAutoWaitForIdle(true);
                robot.delay(1000);

                // Resizing a window to invoke Windows Snap feature
                readFrameInfo();
                robot.mouseMove(frLoc.x + frSize.width / 2, frLoc.y);
                robot.mousePress(InputEvent.BUTTON1_MASK);
                robot.mouseMove(frLoc.x + frSize.width / 2, scrTop);
                robot.mouseRelease(InputEvent.BUTTON1_MASK);

                // Retrieving the color of window expanded area
                readFrameInfo();
                Insets insets = frame.getInsets();
                Color bgColor = robot.getPixelColor(frLoc.x + frSize.width / 2,
                        frLoc.y + frSize.height - insets.bottom - 1);

                frame.dispose();

                if (!bgColor.equals(color)) {
                    throw new RuntimeException("TEST FAILED: got "
                            + bgColor + " instead of " + color);
                }
                System.out.println("TEST PASSED!");
            } catch (AWTException ex) {
                throw new RuntimeException("TEST FAILED!");
            }
        }
    }
 

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

        // Windows only test
        if (OSInfo.getOSType() == OSInfo.OSType.WINDOWS) {

            // Retrieving top edge of Desktop
            GraphicsConfiguration grConf = GraphicsEnvironment
                    .getLocalGraphicsEnvironment().getDefaultScreenDevice()
                    .getDefaultConfiguration();
            Rectangle scrRect = grConf.getBounds();
            Insets scrInsets = Toolkit.getDefaultToolkit().getScreenInsets(grConf);
            scrTop = scrRect.y + scrInsets.top;

            color = new Color(0, 255, 0);

            SwingUtilities.invokeAndWait(() -> {
                createAndShowUI();
            });

            try {
                Robot robot = new Robot();
                robot.setAutoDelay(500);
                robot.setAutoWaitForIdle(true);
                robot.delay(1000);

                // Resizing a window to invoke Windows Snap feature
                readFrameInfo();
                robot.mouseMove(frLoc.x + frSize.width / 2, frLoc.y);
                robot.mousePress(InputEvent.BUTTON1_MASK);
                robot.mouseMove(frLoc.x + frSize.width / 2, scrTop);
                robot.mouseRelease(InputEvent.BUTTON1_MASK);

                // Retrieving the color of window expanded area
                readFrameInfo();
                Insets insets = frame.getInsets();
                Color bgColor = robot.getPixelColor(frLoc.x + frSize.width / 2,
                        frLoc.y + frSize.height - insets.bottom - 1);

                frame.dispose();

                if (!bgColor.equals(color)) {
                    throw new RuntimeException("TEST FAILED: got "
                            + bgColor + " instead of " + color);
                }
                System.out.println("TEST PASSED!");
            } catch (AWTException ex) {
                throw new RuntimeException("TEST FAILED!");
            }
        }
    }
 

/**
 * Tests whether screen pixel has the expected color performing several
 * attempts. This method is useful for asynchronous window manager where
 * it's impossible to determine when drawing actually takes place.
 *
 * @param x X position of pixel
 * @param y Y position of pixel
 * @param color expected color
 * @param attempts number of attempts to undertake
 * @param delay delay before each attempt
 * @param robot a robot to use for retrieving pixel color
 * @return true if pixel color matches the color expected, otherwise false
 */
public static boolean testPixelColor(int x, int y, final Color color, int attempts, int delay, final Robot robot) {
    while (attempts-- > 0) {
        robot.delay(delay);
        Color screen = robot.getPixelColor(x, y);
        if (screen.equals(color)) {
            return true;
        }
    }
    return false;
}
 

/**
 * Tests whether screen pixel has the expected color performing several
 * attempts. This method is useful for asynchronous window manager where
 * it's impossible to determine when drawing actually takes place.
 *
 * @param x X position of pixel
 * @param y Y position of pixel
 * @param color expected color
 * @param attempts number of attempts to undertake
 * @param delay delay before each attempt
 * @param robot a robot to use for retrieving pixel color
 * @return true if pixel color matches the color expected, otherwise false
 */
public static boolean testPixelColor(int x, int y, final Color color, int attempts, int delay, final Robot robot) {
    while (attempts-- > 0) {
        robot.delay(delay);
        Color screen = robot.getPixelColor(x, y);
        if (screen.equals(color)) {
            return true;
        }
    }
    return false;
}
 

/**
 * Tests whether screen pixel has the expected color performing several
 * attempts. This method is useful for asynchronous window manager where
 * it's impossible to determine when drawing actually takes place.
 *
 * @param x X position of pixel
 * @param y Y position of pixel
 * @param color expected color
 * @param attempts number of attempts to undertake
 * @param delay delay before each attempt
 * @param robot a robot to use for retrieving pixel color
 * @return true if pixel color matches the color expected, otherwise false
 */
public static boolean testPixelColor(int x, int y, final Color color, int attempts, int delay, final Robot robot) {
    while (attempts-- > 0) {
        robot.delay(delay);
        Color screen = robot.getPixelColor(x, y);
        if (screen.equals(color)) {
            return true;
        }
    }
    return false;
}