Example usage for java.awt RenderingHints KEY

Introduction

In this page you can find the example usage for java.awt RenderingHints KEY_RENDERING.

Prototype

Key KEY_RENDERING

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Document

Rendering hint key.

Usage

From source file:org.vulpe.view.tags.Functions.java

/**
 * This method takes in an image as a byte array (currently supports GIF,
 * JPG, PNG and possibly other formats) and resizes it to have a width no
 * greater than the pMaxWidth parameter in pixels. It converts the image to
 * a standard quality JPG and returns the byte array of that JPG image.
 *
 * @param imageData/*w ww  .  ja  v a2  s  . c  o  m*/
 *            the image data.
 * @param maxWidth
 *            the max width in pixels, 0 means do not scale.
 * @return the resized JPG image.
 * @throws IOException
 *             if the image could not be manipulated correctly.
 */
public static byte[] resizeImageAsJPG(final byte[] imageData, final int maxWidth) throws IOException {
    // Create an ImageIcon from the image data
    final ImageIcon imageIcon = new ImageIcon(imageData);
    int width = imageIcon.getIconWidth();
    if (width == maxWidth) {
        return imageData;
    }
    int height = imageIcon.getIconHeight();
    LOG.debug("imageIcon width: " + width + "  height: " + height);
    // If the image is larger than the max width, we need to resize it
    if (maxWidth > 0 && width > maxWidth) {
        // Determine the shrink ratio
        final double ratio = (double) maxWidth / imageIcon.getIconWidth();
        LOG.debug("resize ratio: " + ratio);
        height = (int) (imageIcon.getIconHeight() * ratio);
        width = maxWidth;
        LOG.debug("imageIcon post scale width: " + width + "  height: " + height);
    }
    // Create a new empty image buffer to "draw" the resized image into
    final BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    // Create a Graphics object to do the "drawing"
    final Graphics2D g2d = bufferedImage.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
    // Draw the resized image
    g2d.drawImage(imageIcon.getImage(), 0, 0, width, height, null);
    g2d.dispose();
    // Now our buffered image is ready
    // Encode it as a JPEG
    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    final JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(baos);
    encoder.encode(bufferedImage);
    return baos.toByteArray();
}

From source file:ch.rasc.downloadchart.DownloadChartServlet.java

private static void writeImage(HttpServletResponse response, byte[] imageData, Integer width, Integer height,
        String formatName) throws IOException {

    BufferedImage originalImage = ImageIO.read(new ByteArrayInputStream(imageData));
    Dimension newDimension = calculateDimension(originalImage, width, height);

    if (newDimension != null) {
        int type = originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();
        BufferedImage resizedImage = new BufferedImage(newDimension.width, newDimension.height, type);
        Graphics2D g = resizedImage.createGraphics();
        g.drawImage(originalImage, 0, 0, newDimension.width, newDimension.height, null);
        g.dispose();//from   www. j  a v a 2 s .  com
        g.setComposite(AlphaComposite.Src);

        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        ImageIO.write(resizedImage, formatName, response.getOutputStream());
    } else {
        if ("png".equals(formatName)) {
            response.getOutputStream().write(imageData);
        } else {
            ImageIO.write(originalImage, "gif", response.getOutputStream());
        }
    }
}

From source file:org.hydroponics.dao.JDBCHydroponicsDaoImpl.java

public byte[] getThumbnail(BufferedImage buffImage) throws IOException {
    BufferedImage pDestImage = new BufferedImage(Constants.THUMBNAIL_WIDTH, Constants.THUMBNAIL_HEIGHT,
            BufferedImage.TYPE_3BYTE_BGR);

    AffineTransform transform = new AffineTransform();
    transform.scale((float) Constants.THUMBNAIL_WIDTH / (float) buffImage.getWidth(),
            (float) Constants.THUMBNAIL_HEIGHT / (float) buffImage.getHeight());

    Graphics2D g = (Graphics2D) pDestImage.getGraphics();

    //set the rendering hints for a good thumbnail image
    Map m = g.getRenderingHints();
    m.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    m.put(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    m.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    m.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHints(m);/*  w ww .j  a v a 2  s  . c  o  m*/

    g.drawImage(buffImage, transform, null);
    g.dispose();

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ImageIO.write(pDestImage, "JPEG", out);
    return out.toByteArray();
}

From source file:org.squidy.designer.shape.VisualShape.java

@Override
protected final void paint(PPaintContext paintContext) {
    super.paint(paintContext);

    Graphics2D g = paintContext.getGraphics();

    // Set default font.
    g.setFont(internalFont);//w ww.j a v a2 s .  c  om

    //      if (!renderingHintsSet) {
    if (isRenderPrimitive()) {
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
        g.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED);
        g.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_SPEED);
        g.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
        g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
        g.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
    } else {
        // Use anti aliasing -> May slow down performance.
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
        g.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
        g.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DEFAULT);
        g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
                RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT);
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        g.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    }
    //         renderingHintsSet = true;
    //      }

    // Paint the shapes visual representation.
    paintShape(paintContext);

    // Allows visual debugging if enabled.
    if (DebugConstants.ENABLED) {
        paintDebug(paintContext);
    }
}

From source file:org.jas.util.ImageUtils.java

public Image resize(Image image, int width, int height) {
    BufferedImage bufferedImage = (BufferedImage) image;
    int type = bufferedImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : bufferedImage.getType();
    BufferedImage resizedImage = new BufferedImage(width, height, type);
    Graphics2D g = resizedImage.createGraphics();
    g.setComposite(AlphaComposite.Src);

    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g.drawImage(image, 0, 0, width, height, null);
    g.dispose();// w w  w .j  a va2s .c om
    return resizedImage;
}

From source file:com.salesmanager.core.util.ProductImageUtil.java

public BufferedImage resize(BufferedImage image, int width, int height) {
    int type = image.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : image.getType();
    BufferedImage resizedImage = new BufferedImage(width, height, type);
    Graphics2D g = resizedImage.createGraphics();
    g.setComposite(AlphaComposite.Src);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.drawImage(image, 0, 0, width, height, null);
    g.dispose();/*from  w  w w.j  av a2  s .c o m*/
    return resizedImage;
}

From source file:GUI.Main.java

public static BufferedImage resize(BufferedImage image, int width, int height) {
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TRANSLUCENT);
    Graphics2D g2d = bi.createGraphics();
    g2d.addRenderingHints(//w ww  .ja v  a  2s . co  m
            new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY));
    g2d.drawImage(image, 0, 0, width, height, null);
    g2d.dispose();
    return bi;
}

From source file:com.salesmanager.core.util.ProductImageUtil.java

public BufferedImage blurImage(BufferedImage image) {
    float ninth = 1.0f / 9.0f;
    float[] blurKernel = { ninth, ninth, ninth, ninth, ninth, ninth, ninth, ninth, ninth };
    Map<Key, Object> map = new HashMap<Key, Object>();
    map.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    map.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    map.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    RenderingHints hints = new RenderingHints(map);
    BufferedImageOp op = new ConvolveOp(new Kernel(3, 3, blurKernel), ConvolveOp.EDGE_NO_OP, hints);
    return op.filter(image, null);
}

From source file:org.jas.gui.ImagePanel.java

@Override
protected void paintComponent(Graphics g) {
    if (portrait == null) {
        super.paintComponent(g);
        return;//from w  w w.  ja  va2s  .c o m
    }
    try {
        // Create a translucent intermediate image in which we can perform the soft clipping
        GraphicsConfiguration gc = ((Graphics2D) g).getDeviceConfiguration();
        BufferedImage intermediateBufferedImage = gc.createCompatibleImage(getWidth(), getHeight(),
                Transparency.TRANSLUCENT);
        Graphics2D bufferGraphics = intermediateBufferedImage.createGraphics();

        // Clear the image so all pixels have zero alpha
        bufferGraphics.setComposite(AlphaComposite.Clear);
        bufferGraphics.fillRect(0, 0, getWidth(), getHeight());

        // Render our clip shape into the image. Shape on where to paint
        bufferGraphics.setComposite(AlphaComposite.Src);
        bufferGraphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
        bufferGraphics.setColor(Color.WHITE);
        bufferGraphics.fillRoundRect(0, 0, getWidth(), getHeight(), (int) (getWidth() * arcWidth),
                (int) (getHeight() * arcHeight));

        // SrcAtop uses the alpha value as a coverage value for each pixel stored in the
        // destination shape. For the areas outside our clip shape, the destination
        // alpha will be zero, so nothing is rendered in those areas. For
        // the areas inside our clip shape, the destination alpha will be fully
        // opaque.
        bufferGraphics.setComposite(AlphaComposite.SrcAtop);
        bufferGraphics.drawImage(portrait, 0, 0, getWidth(), getHeight(), null);
        bufferGraphics.dispose();

        // Copy our intermediate image to the screen
        g.drawImage(intermediateBufferedImage, 0, 0, null);

    } catch (Exception e) {
        log.warn("Error: Creating Renderings", e);
    }
}

Example usage for java.awt RenderingHints KEY_RENDERING

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