Examples with ImageWriter javax.imageio.ImageWriter used on opensource projects

Example 1 with ImageWriter

use of javax.imageio.ImageWriter in project Openfire by igniterealtime.

the class Resizer method resizeAvatar.

public static void resizeAvatar(final Element vCardElement) {
    if (vCardElement == null) {
        return;
    }
    // XPath didn't work?
    if (vCardElement.element("PHOTO") == null) {
        return;
    }
    if (vCardElement.element("PHOTO").element("BINVAL") == null || vCardElement.element("PHOTO").element("TYPE") == null) {
        return;
    }
    final Element element = vCardElement.element("PHOTO").element("BINVAL");
    if (element.getTextTrim() == null || element.getTextTrim().isEmpty()) {
        return;
    }
    // Get a writer (check if we can generate a new image for the type of the original).
    final String type = vCardElement.element("PHOTO").element("TYPE").getTextTrim();
    final Iterator it = ImageIO.getImageWritersByMIMEType(type);
    if (!it.hasNext()) {
        Log.debug("Cannot resize avatar. No writers available for MIME type {}.", type);
        return;
    }
    final ImageWriter iw = (ImageWriter) it.next();
    // Extract the original avatar from the VCard.
    final byte[] original = Base64.decode(element.getTextTrim());
    // Crop and shrink, if needed.
    final int targetDimension = JiveGlobals.getIntProperty("avatar.resize.targetdimension", 96);
    final byte[] resized = cropAndShrink(original, targetDimension, iw);
    // If a resized image was created, replace to original avatar in the VCard.
    if (resized != null) {
        Log.debug("Replacing original avatar in vcard with a resized variant.");
        vCardElement.element("PHOTO").element("BINVAL").setText(Base64.encodeBytes(resized));
    }
}

Example 2 with ImageWriter

use of javax.imageio.ImageWriter in project screenbird by adamhub.

the class PreviewPlayerTest method generateTestImageFile.

/**
     * Generates screenshot for JUnit testing
     * @return 
     *      File pointer to screen shot
     */
private File generateTestImageFile(Rectangle captureArea) {
    Robot awtRobot;
    String currentCaptureDir = Settings.SCREEN_CAPTURE_DIR;
    if (captureArea == null) {
        //Get full screen if no defined area of screen capture is defined
        captureArea = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
    }
    try {
        BufferedImage bufferedImage = generateTestImage(captureArea);
        Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");
        ImageWriter writer = (ImageWriter) iter.next();
        ImageWriteParam iwp = writer.getDefaultWriteParam();
        iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        iwp.setCompressionQuality(1.0F);
        File imageFile = new File(currentCaptureDir, "test.jpeg");
        FileImageOutputStream stream = new FileImageOutputStream(imageFile);
        //Set up file access
        writer.setOutput(stream);
        //Create image
        IIOImage image = new IIOImage(bufferedImage, null, null);
        //write image
        writer.write(null, image, iwp);
        //Close image stream
        stream.close();
        return imageFile;
    } catch (IOException e) {
        System.err.println(e);
    }
    return null;
}

Example 3 with ImageWriter

use of javax.imageio.ImageWriter in project screenbird by adamhub.

the class VideoCacheTest method generateTestImage.

/**
     * Generates screenshot for JUnit testing
     * @return 
     *      File pointer to screen shot
     */
private File generateTestImage() {
    Robot awtRobot;
    String currentCaptureDir = Settings.SCREEN_CAPTURE_DIR;
    try {
        awtRobot = new Robot();
        BufferedImage bufferedImage = awtRobot.createScreenCapture(new Rectangle(Toolkit.getDefaultToolkit().getScreenSize()));
        Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");
        ImageWriter writer = (ImageWriter) iter.next();
        ImageWriteParam iwp = writer.getDefaultWriteParam();
        iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        iwp.setCompressionQuality(1.0F);
        File imageFile = new File(currentCaptureDir, "test.jpeg");
        FileImageOutputStream stream = new FileImageOutputStream(imageFile);
        //Set up file access
        writer.setOutput(stream);
        //Create image
        IIOImage image = new IIOImage(bufferedImage, null, null);
        //write image
        writer.write(null, image, iwp);
        //Close image stream
        stream.close();
        return imageFile;
    } catch (AWTException e) {
        System.err.println(e);
    } catch (IOException e) {
        System.err.println(e);
    }
    return null;
}

Example 4 with ImageWriter

use of javax.imageio.ImageWriter in project screenbird by adamhub.

the class ImageUtilTest method generateTestImageFile.

/**
     * Generates screenshot for JUnit testing
     * @return 
     *      File pointer to screen shot
     */
private File generateTestImageFile(Rectangle captureArea) {
    if (captureArea == null) {
        //Get full screen if no defined area of screen capture is defined
        captureArea = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
    }
    try {
        BufferedImage bufferedImage = generateTestImage(captureArea);
        Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");
        ImageWriter writer = (ImageWriter) iter.next();
        ImageWriteParam iwp = writer.getDefaultWriteParam();
        iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        iwp.setCompressionQuality(1.0F);
        File imageFile = generateTempFile("jpeg");
        FileImageOutputStream stream = new FileImageOutputStream(imageFile);
        //Set up file access
        writer.setOutput(stream);
        //Create image
        IIOImage image = new IIOImage(bufferedImage, null, null);
        //write image
        writer.write(null, image, iwp);
        //Close image stream
        stream.close();
        return imageFile;
    } catch (IOException e) {
        System.err.println(e);
    }
    return null;
}

Example 5 with ImageWriter

use of javax.imageio.ImageWriter in project screenbird by adamhub.

the class ImageUtil method markAndCompress.

/**
     * Adds a watermark to the image and compresses it.
     * @param imageSource
     * @param compressionQuality
     * @param mark
     * @param markImageSource 
     */
public static void markAndCompress(String imageSource, float compressionQuality, boolean mark, String markImageSource) {
    try {
        File fileImageSource = new File(imageSource);
        if (!fileImageSource.exists()) {
            throw new ImageDoesNotExistException("Mark Image doesn't exists: " + fileImageSource.getAbsolutePath());
        }
        BufferedImage bufferedImage = ImageIO.read(fileImageSource);
        if (mark) {
            addMark(bufferedImage, markImageSource, 1.0f, ImageUtil.MARK_LEFT_BOTTOM);
        }
        // Get a jpeg writer
        ImageWriter writer = null;
        Iterator iter = ImageIO.getImageWritersByFormatName("jpg");
        if (iter.hasNext()) {
            writer = (ImageWriter) iter.next();
        }
        if (writer == null) {
            throw new IOException("Could not get JPEG writer");
        }
        // Prepare output file
        ImageOutputStream ios = ImageIO.createImageOutputStream(fileImageSource);
        if (ios == null) {
            throw new IOException("Could not open image stream to write image watermark");
        }
        writer.setOutput(ios);
        // Set the compression quality
        ImageWriteParam iwparam = new JPEGImageWriteParam(Locale.getDefault());
        iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        if (compressionQuality < 0.0F || compressionQuality > 1.0F) {
            compressionQuality = 1.0F;
        }
        iwparam.setCompressionQuality(compressionQuality);
        // Write the image
        writer.write(null, new IIOImage(bufferedImage, null, null), iwparam);
        // Cleanup
        ios.flush();
        writer.dispose();
        ios.close();
    } catch (IllegalArgumentException e) {
        log(e);
    } catch (IOException e) {
        log(e);
    } catch (ImageDoesNotExistException e) {
        log(e);
    }
}