Example usage for java.awt Graphics2D drawImage

Introduction

In this page you can find the example usage for java.awt Graphics2D drawImage.

Prototype

public abstract boolean drawImage(Image img, int x, int y, int width, int height, ImageObserver observer);

Source Link

Document

Draws as much of the specified image as has already been scaled to fit inside the specified rectangle.

Usage

From source file:ome.logic.AWTScaleService.java

public BufferedImage scaleBufferedImage(BufferedImage image, float xScale, float yScale) {
    int thumbHeight = (int) (image.getHeight() * yScale);
    int thumbWidth = (int) (image.getWidth() * xScale);
    log.info("Scaling to: " + thumbHeight + "x" + thumbWidth);

    // Create the required compatible (thumbnail) buffered image to avoid
    // potential errors from Java's ImagingLib.
    ColorModel cm = image.getColorModel();
    WritableRaster r = cm.createCompatibleWritableRaster(thumbWidth, thumbHeight);
    BufferedImage thumbImage = new BufferedImage(cm, r, false, null);

    // Do the actual scaling and return the result
    Graphics2D graphics2D = thumbImage.createGraphics();
    // graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
    // RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);
    return thumbImage;
}

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From source file:IconPaint.java

public void paintComponent(Graphics g) {
    super.paintComponent(g);
    setBackground(Color.white);//  w ww  .j  ava 2 s .  c  om
    Graphics2D g2 = (Graphics2D) g;

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    g2.drawImage(img, 10, 10, 100, 100, this);
}

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From source file:net.rptools.maptool.util.PersistenceUtil.java

public static void saveToken(Token token, File file, boolean doWait) throws IOException {
    // Thumbnail/*www  .  j a va 2 s. co  m*/
    BufferedImage image = null;
    if (doWait)
        image = ImageManager.getImageAndWait(token.getImageAssetId());
    else
        image = ImageManager.getImage(token.getImageAssetId());

    Dimension sz = new Dimension(image.getWidth(), image.getHeight());
    SwingUtil.constrainTo(sz, 50);
    BufferedImage thumb = new BufferedImage(sz.width, sz.height, BufferedImage.TRANSLUCENT);
    Graphics2D g = thumb.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.drawImage(image, 0, 0, sz.width, sz.height, null);
    g.dispose();

    PackedFile pakFile = null;
    try {
        pakFile = new PackedFile(file);
        saveAssets(token.getAllImageAssets(), pakFile);
        pakFile.putFile(Token.FILE_THUMBNAIL, ImageUtil.imageToBytes(thumb, "png"));
        pakFile.setContent(token);
        pakFile.setProperty(PROP_VERSION, MapTool.getVersion());
        pakFile.save();
    } finally {
        if (pakFile != null)
            pakFile.close();
    }
}

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From source file:net.rptools.lib.image.ThumbnailManager.java

private Image createThumbnail(File file) throws IOException {
    // Gather info
    File thumbnailFile = getThumbnailFile(file);
    if (thumbnailFile.exists()) {
        return ImageUtil.getImage(thumbnailFile);
    }/*from  ww  w. jav  a2  s . c  o m*/

    Image image = ImageUtil.getImage(file);
    Dimension imgSize = new Dimension(image.getWidth(null), image.getHeight(null));

    // Test if we Should we bother making a thumbnail ?
    // Jamz: New size 100k (was 30k) and put in check so we're not creating thumbnails LARGER than the original...
    if (file.length() < 102400
            || (imgSize.width <= thumbnailSize.width && imgSize.height <= thumbnailSize.height)) {
        return image;
    }
    // Transform the image
    SwingUtil.constrainTo(imgSize, Math.min(image.getWidth(null), thumbnailSize.width),
            Math.min(image.getHeight(null), thumbnailSize.height));
    BufferedImage thumbnailImage = new BufferedImage(imgSize.width, imgSize.height,
            ImageUtil.pickBestTransparency(image));

    Graphics2D g = thumbnailImage.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.drawImage(image, 0, 0, imgSize.width, imgSize.height, null);
    g.dispose();

    // Use png to preserve transparency
    FileUtils.writeByteArrayToFile(thumbnailFile, ImageUtil.imageToBytes(thumbnailImage, "png"));

    return thumbnailImage;
}

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From source file:com.t3.image.ThumbnailManager.java

private Image createThumbnail(File file) throws IOException {

    // Gather info
    File thumbnailFile = getThumbnailFile(file);
    if (thumbnailFile.exists()) {
        return ImageUtil.getImage(thumbnailFile);
    }/*ww  w .  ja v a2  s  .  c om*/

    Image image = ImageUtil.getImage(file);

    // Should we bother making a thumbnail ?
    if (file.length() < 30 * 1024) {
        return image;
    }

    // Transform the image
    Dimension imgSize = new Dimension(image.getWidth(null), image.getHeight(null));
    SwingUtil.constrainTo(imgSize, thumbnailSize.width, thumbnailSize.height);

    BufferedImage thumbnailImage = new BufferedImage(imgSize.width, imgSize.height,
            ImageUtil.pickBestTransparency(image));

    Graphics2D g = thumbnailImage.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.drawImage(image, 0, 0, imgSize.width, imgSize.height, null);
    g.dispose();

    // Ensure path exists
    if (thumbnailFile.exists())
        thumbnailFile.delete();
    else
        thumbnailFile.getParentFile().mkdirs();

    try (OutputStream os = new FileOutputStream(thumbnailFile)) {
        IOUtils.write(ImageUtil.imageToBytes(thumbnailImage, "png"), os);
    }

    return thumbnailImage;
}

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From source file:com.fusesource.forge.jmstest.persistence.rrd.RrdGraphPostProcessor.java

private void createThumbnail(BufferedImage image, String name, int thumbWidth, int thumbHeight) {

    double thumbRatio = (double) thumbWidth / (double) thumbHeight;
    int imageWidth = image.getWidth(null);
    int imageHeight = image.getHeight(null);
    double imageRatio = (double) imageWidth / (double) imageHeight;

    if (thumbRatio < imageRatio) {
        thumbHeight = (int) (thumbWidth / imageRatio);
    } else {/*from  w ww. ja va 2  s .c om*/
        thumbWidth = (int) (thumbHeight * imageRatio);
    }

    BufferedImage thumbImage = new BufferedImage(thumbWidth,

            thumbHeight, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics2D = thumbImage.createGraphics();
    graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);

    File thumbFile = new File(getWorkDir().getAbsolutePath() + "/" + name + "-thumb.png");

    try {
        ImageIO.write(thumbImage, "PNG", thumbFile);
    } catch (IOException ioe) {
        log().error("Error creating thumbnail for: " + name);
    }
}

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From source file:com.sire.web.CajFacturaEnviadaBean.java

private void savePicture() {
    if (file != null) {
        try {/*from w w w.ja v a 2 s .  c  om*/
            BufferedImage originalImage = ImageIO.read(file.getInputstream());

            BufferedImage outputImage = new BufferedImage((int) (originalImage.getWidth() * 0.25),
                    (int) (originalImage.getHeight() * 0.25), originalImage.getType());

            Graphics2D g2d = outputImage.createGraphics();
            g2d.drawImage(originalImage, 0, 0, (int) (originalImage.getWidth() * 0.25),
                    (int) (originalImage.getHeight() * 0.25), null);
            g2d.dispose();

            String imagesFolder = System.getProperty("imagesFolder");

            if (imagesFolder == null) {
                String currentUsersHomeDir = System.getProperty("user.home");
                imagesFolder = currentUsersHomeDir + File.separator + "photos";
            }

            Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");
            ImageWriter writer = (ImageWriter) iter.next();
            ImageWriteParam iwp = writer.getDefaultWriteParam();

            iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            float quality = 1.0f; // reduce quality by 0%  
            iwp.setCompressionQuality(quality);

            File f = new File(imagesFolder + File.separator + fileName);
            try (FileImageOutputStream output = new FileImageOutputStream(f)) {
                writer.setOutput(output);

                IIOImage image = new IIOImage(outputImage, null, null);
                writer.write(null, image, iwp);
                writer.dispose();
            }
        } catch (IOException ex) {
            LOGGER.severe(ex.getMessage());
        }
    }
}

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From source file:ddf.catalog.transformer.input.pdf.PdfInputTransformer.java

private byte[] generatePdfThumbnail(PDDocument pdfDocument) throws IOException {

    PDFRenderer pdfRenderer = new PDFRenderer(pdfDocument);

    if (pdfDocument.getNumberOfPages() < 1) {
        /*// ww w .  j ava2  s.c  om
         * Can there be a PDF with zero pages??? Should we throw an error or what? The
         * original implementation assumed that a PDF would always have at least one
         * page. That's what I've implemented here, but I don't like make those
         * kinds of assumptions :-( But I also don't want to change the original
         * behavior without knowing how it will impact the system.
         */
    }

    PDPage page = pdfDocument.getPage(0);

    BufferedImage image = pdfRenderer.renderImageWithDPI(0, RESOLUTION_DPI, ImageType.RGB);

    int largestDimension = Math.max(image.getHeight(), image.getWidth());
    float scalingFactor = IMAGE_HEIGHTWIDTH / largestDimension;
    int scaledHeight = (int) (image.getHeight() * scalingFactor);
    int scaledWidth = (int) (image.getWidth() * scalingFactor);

    BufferedImage scaledImage = new BufferedImage(scaledWidth, scaledHeight, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics = scaledImage.createGraphics();
    graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    graphics.drawImage(image, 0, 0, scaledWidth, scaledHeight, null);
    graphics.dispose();

    try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
        ImageIOUtil.writeImage(scaledImage, FORMAT_NAME, outputStream, RESOLUTION_DPI, IMAGE_QUALITY);
        return outputStream.toByteArray();
    }
}

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From source file:net.sf.jasperreports.engine.JRImageRenderer.java

@Override
public void render(JasperReportsContext jasperReportsContext, Graphics2D grx, Rectangle2D rectangle)
        throws JRException {
    Image img = getImage(jasperReportsContext);

    grx.drawImage(img, (int) rectangle.getX(), (int) rectangle.getY(), (int) rectangle.getWidth(),
            (int) rectangle.getHeight(), null);
}

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From source file:dk.netdesign.common.osgi.config.osgi.OCD.java

public BufferedImage scaleImage(BufferedImage img, int width, int height, Color background) {
    int imgWidth = img.getWidth();
    int imgHeight = img.getHeight();
    if (imgWidth * height < imgHeight * width) {
        width = imgWidth * height / imgHeight;
    } else {/*from  w w w  . j a  v a2s  . c om*/
        height = imgHeight * width / imgWidth;
    }
    BufferedImage newImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = newImage.createGraphics();
    try {
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        g.setBackground(background);
        g.clearRect(0, 0, width, height);
        g.drawImage(img, 0, 0, width, height, null);
    } finally {
        g.dispose();
    }
    return newImage;
}

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