Examples with ImageData org.eclipse.swt.graphics.ImageData used on opensource projects

Example 31 with ImageData

use of org.eclipse.swt.graphics.ImageData in project knime-core by knime.

the class KNIMECTabFolderRenderer method blur.

public ImageData blur(final Image src, final int radius, final int sigma) {
    float[] kernel = create1DKernel(radius, sigma);
    ImageData imgPixels = src.getImageData();
    int width = imgPixels.width;
    int height = imgPixels.height;
    int[] inPixels = new int[width * height];
    int[] outPixels = new int[width * height];
    int offset = 0;
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            RGB rgb = imgPixels.palette.getRGB(imgPixels.getPixel(x, y));
            if (rgb.red == 255 && rgb.green == 255 && rgb.blue == 255) {
                inPixels[offset] = (rgb.red << 16) | (rgb.green << 8) | rgb.blue;
            } else {
                inPixels[offset] = (imgPixels.getAlpha(x, y) << 24) | (rgb.red << 16) | (rgb.green << 8) | rgb.blue;
            }
            offset++;
        }
    }
    convolve(kernel, inPixels, outPixels, width, height, true);
    convolve(kernel, outPixels, inPixels, height, width, true);
    ImageData dst = new ImageData(imgPixels.width, imgPixels.height, 24, new PaletteData(0xff0000, 0xff00, 0xff));
    dst.setPixels(0, 0, inPixels.length, inPixels, 0);
    offset = 0;
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            if (inPixels[offset] == -1) {
                dst.setAlpha(x, y, 0);
            } else {
                int a = (inPixels[offset] >> 24) & 0xff;
                // if (a < 150) a = 0;
                dst.setAlpha(x, y, a);
            }
            offset++;
        }
    }
    return dst;
}

Example 32 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse-pmd by acanda.

the class SWTResourceManager method getImage.

/**
 * Returns an {@link Image} encoded by the specified {@link InputStream}.
 *
 * @param stream
 *            the {@link InputStream} encoding the image data
 * @return the {@link Image} encoded by the specified input stream
 */
protected static Image getImage(final InputStream stream) throws IOException {
    try {
        final Display display = Display.getCurrent();
        final ImageData data = new ImageData(stream);
        if (data.transparentPixel > 0) {
            return new Image(display, data, data.getTransparencyMask());
        }
        return new Image(display, data);
    } finally {
        stream.close();
    }
}

Example 33 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class HoverHelp method open.

/**
 * Opens the main program.
 */
public Shell open(Display display) {
    // Load the images
    Class<HoverHelp> clazz = HoverHelp.class;
    try {
        if (images == null) {
            images = new Image[imageLocations.length];
            for (int i = 0; i < imageLocations.length; ++i) {
                try (InputStream stream = clazz.getResourceAsStream(imageLocations[i])) {
                    ImageData source = new ImageData(stream);
                    ImageData mask = source.getTransparencyMask();
                    images[i] = new Image(display, source, mask);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    } catch (Exception ex) {
        System.err.println(getResourceString("error.CouldNotLoadResources", ex.getMessage()));
        return null;
    }
    // Create the window
    Shell shell = new Shell();
    createPartControl(shell);
    shell.addDisposeListener(e -> {
        /* Free resources */
        if (images != null) {
            for (final Image image : images) {
                if (image != null)
                    image.dispose();
            }
            images = null;
        }
    });
    shell.pack();
    shell.open();
    return shell;
}

Example 34 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class ImageAnalyzer method menuSaveMaskAs.

void menuSaveMaskAs() {
    if (image == null || !showMask)
        return;
    if (imageData.getTransparencyType() == SWT.TRANSPARENCY_NONE)
        return;
    // stop any animation in progress
    animate = false;
    // Get the user to choose a file name and type to save.
    FileDialog fileChooser = new FileDialog(shell, SWT.SAVE);
    fileChooser.setFilterPath(lastPath);
    if (fileName != null)
        fileChooser.setFileName(fileName);
    fileChooser.setFilterExtensions(SAVE_FILTER_EXTENSIONS);
    fileChooser.setFilterNames(SAVE_FILTER_NAMES);
    String filename = fileChooser.open();
    lastPath = fileChooser.getFilterPath();
    if (filename == null)
        return;
    // Figure out what file type the user wants saved.
    int filetype = fileChooser.getFilterIndex();
    if (filetype == -1) {
        /* The platform file dialog does not support user-selectable file filters.
			 * Determine the desired type by looking at the file extension.
			 */
        filetype = determineFileType(filename);
        if (filetype == SWT.IMAGE_UNDEFINED) {
            MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
            box.setMessage(createMsg(bundle.getString("Unknown_extension"), filename.substring(filename.lastIndexOf('.') + 1)));
            box.open();
            return;
        }
    }
    if (new java.io.File(filename).exists()) {
        MessageBox box = new MessageBox(shell, SWT.ICON_QUESTION | SWT.OK | SWT.CANCEL);
        box.setMessage(createMsg(bundle.getString("Overwrite"), filename));
        if (box.open() == SWT.CANCEL)
            return;
    }
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    try {
        // Save the mask of the current image to the specified file.
        ImageData maskImageData = imageData.getTransparencyMask();
        loader.data = new ImageData[] { maskImageData };
        loader.save(filename, filetype);
    } catch (SWTException e) {
        showErrorDialog(bundle.getString("Saving_lc"), filename, e);
    } catch (SWTError e) {
        showErrorDialog(bundle.getString("Saving_lc"), filename, e);
    } finally {
        shell.setCursor(null);
        imageCanvas.setCursor(crossCursor);
    }
}

Example 35 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class ImageAnalyzer method paintImage.

void paintImage(PaintEvent event) {
    GC gc = event.gc;
    Image paintImage = image;
    /* If the user wants to see the transparent pixel in its actual color,
		 * then temporarily turn off transparency.
		 */
    int transparentPixel = imageData.transparentPixel;
    if (transparentPixel != -1 && !transparent) {
        imageData.transparentPixel = -1;
        paintImage = new Image(display, imageData);
    }
    /* Scale the image when drawing, using the user's selected scaling factor. */
    int w = Math.round(imageData.width * xscale);
    int h = Math.round(imageData.height * yscale);
    /* If any of the background is visible, fill it with the background color. */
    Rectangle bounds = imageCanvas.getBounds();
    if (imageData.getTransparencyType() != SWT.TRANSPARENCY_NONE) {
        /* If there is any transparency at all, fill the whole background. */
        gc.fillRectangle(0, 0, bounds.width, bounds.height);
    } else {
        /* Otherwise, just fill in the backwards L. */
        if (ix + w < bounds.width)
            gc.fillRectangle(ix + w, 0, bounds.width - (ix + w), bounds.height);
        if (iy + h < bounds.height)
            gc.fillRectangle(0, iy + h, ix + w, bounds.height - (iy + h));
    }
    /* Draw the image */
    gc.drawImage(paintImage, 0, 0, imageData.width, imageData.height, ix + imageData.x, iy + imageData.y, w, h);
    /* If there is a mask and the user wants to see it, draw it. */
    if (showMask && (imageData.getTransparencyType() != SWT.TRANSPARENCY_NONE)) {
        ImageData maskImageData = imageData.getTransparencyMask();
        Image maskImage = new Image(display, maskImageData);
        gc.drawImage(maskImage, 0, 0, imageData.width, imageData.height, w + 10 + ix + imageData.x, iy + imageData.y, w, h);
        maskImage.dispose();
    }
    /* If transparency was temporarily disabled, restore it. */
    if (transparentPixel != -1 && !transparent) {
        imageData.transparentPixel = transparentPixel;
        paintImage.dispose();
    }
}