Examples with PixelGrabber java.awt.image.PixelGrabber used on opensource projects

Example 41 with PixelGrabber

use of java.awt.image.PixelGrabber in project BombusMod by BombusMod.

the class J2SEMutableImage method getData.

public int[] getData() {
    if (grabber == null) {
        pixels = new int[getWidth() * getHeight()];
        grabber = new PixelGrabber(graphicsSurface.getImage(), 0, 0, getWidth(), getHeight(), pixels, 0, getWidth());
    }
    try {
        grabber.grabPixels();
    } catch (InterruptedException e) {
        logger.error("AWT exception", e);
    }
    return pixels;
}

Example 42 with PixelGrabber

use of java.awt.image.PixelGrabber in project vcell by virtualcell.

the class NativeImage method createPixels.

/**
 * This method was created in VisualAge.
 * @return byte[]
 */
private void createPixels() throws Exception {
    if (bPixelsExist()) {
        return;
    }
    PixelGrabber pg = new PixelGrabber(getJavaImage(), 0, 0, getSize().getX(), getSize().getX(), false);
    if (!pg.grabPixels()) {
        throw new Exception("Error getting pixels, status = " + pg.getStatus());
    }
    Object pixels = pg.getPixels();
    ColorModel colorModel = null;
    while (colorModel == null) {
        colorModel = pg.getColorModel();
    }
    if ((pixels instanceof int[]) && (colorModel instanceof DirectColorModel)) {
        newRGBAPixels = (int[]) pixels;
    } else if ((pixels instanceof byte[]) && (colorModel instanceof IndexColorModel)) {
        newIndexPixels = (byte[]) pixels;
        IndexColorModel indexColorModel = (IndexColorModel) colorModel;
        int colorMapSize = indexColorModel.getMapSize();
        byte[] temp_colorMap = new byte[colorMapSize * IndexColorMap.RGB_PACK_SIZE];
        byte[] reds = new byte[colorMapSize];
        indexColorModel.getReds(reds);
        byte[] greens = new byte[colorMapSize];
        indexColorModel.getGreens(greens);
        byte[] blues = new byte[colorMapSize];
        indexColorModel.getBlues(blues);
        for (int c = 0; c < colorMapSize; c += 1) {
            // make packed R,G,B array for ColorIndexModel
            int packCount = c * IndexColorMap.RGB_PACK_SIZE;
            temp_colorMap[packCount] = reds[c];
            temp_colorMap[packCount + 1] = greens[c];
            temp_colorMap[packCount + 2] = blues[c];
        }
        colorMap = new IndexColorMap(temp_colorMap);
    } else {
        throw new Exception("Unknown combination of data type=" + pixels.getClass().toString() + " and ColorModel=" + colorModel.getClass().toString());
    }
}

Example 43 with PixelGrabber

use of java.awt.image.PixelGrabber in project hale by halestudio.

the class ImageMarker method hasAlpha.

/**
 * Determines if an image has transparent pixels
 *
 * @param image the {@link Image}
 * @return if the given image has transparent pixels
 */
public static boolean hasAlpha(Image image) {
    // If buffered image, the color model is readily available
    if (image instanceof BufferedImage) {
        BufferedImage bimage = (BufferedImage) image;
        return bimage.getColorModel().hasAlpha();
    }
    // Use a pixel grabber to retrieve the image's color model;
    // grabbing a single pixel is usually sufficient
    PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    // ignore
    }
    // Get the image's color model
    ColorModel cm = pg.getColorModel();
    return cm.hasAlpha();
}

Example 44 with PixelGrabber

use of java.awt.image.PixelGrabber in project gephi by gephi.

the class UIUtils method getGTKProfilerResultsBackground.

private static Color getGTKProfilerResultsBackground() {
    int[] pixels = new int[1];
    pixels[0] = -1;
    // Prepare textarea to grab the color from
    JTextArea textArea = new JTextArea();
    textArea.setSize(new Dimension(10, 10));
    textArea.doLayout();
    // Print the textarea to an image
    Image image = new BufferedImage(textArea.getSize().width, textArea.getSize().height, BufferedImage.TYPE_INT_RGB);
    textArea.printAll(image.getGraphics());
    // Grab appropriate pixels to get the color
    PixelGrabber pixelGrabber = new PixelGrabber(image, 5, 5, 1, 1, pixels, 0, 1);
    try {
        pixelGrabber.grabPixels();
        if (pixels[0] == -1) {
            // System background not customized
            return Color.WHITE;
        }
    } catch (InterruptedException e) {
        return getNonGTKProfilerResultsBackground();
    }
    return pixels[0] != -1 ? new Color(pixels[0]) : getNonGTKProfilerResultsBackground();
}

Example 45 with PixelGrabber

use of java.awt.image.PixelGrabber in project gephi by gephi.

the class JImagePanel method setPreferredBackground.

protected void setPreferredBackground() {
    int[] pixels = new int[1];
    PixelGrabber pg = null;
    switch(imageAlign) {
        case (SwingConstants.TOP):
            pg = new PixelGrabber(image, 0, image.getHeight(null) - 1, 1, 1, pixels, 0, 1);
            break;
        case (SwingConstants.BOTTOM):
            pg = new PixelGrabber(image, 0, 0, 1, 1, pixels, 0, 1);
            break;
        default:
            pg = new PixelGrabber(image, 0, image.getHeight(null) - 1, 1, 1, pixels, 0, 1);
    }
    try {
        if ((pg != null) && pg.grabPixels()) {
            setBackground(new Color(pixels[0]));
        }
    } catch (InterruptedException e) {
    }
}