Package org.apache.batik.transcoder.image

Examples of org.apache.batik.transcoder.image.JPEGTranscoder

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    /*
    * Return the image as a base64 encoded string of a PNG
    * */
    public String toPNGBase64String() {
        // Create a JPEG transcoder
        JPEGTranscoder jpegTranscoder = new JPEGTranscoder();
        // Set the transcoding hints.
        jpegTranscoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(0.8));
        // Create the transcoder input.
        String inputString = getHeaders() + generateSVGString();  //svgDoc is set from generateSVGString()
        TranscoderInput transcoderInput = new TranscoderInput(svgDoc);
        Reader stringReader = new StringReader(inputString);
        TranscoderInput transcoderInput2 = new TranscoderInput(stringReader);
        // Create the transcoder output.
        OutputStream osByteArray = new ByteArrayOutputStream();
        TranscoderOutput transcoderOutput = new TranscoderOutput(osByteArray);
        try {
            jpegTranscoder.transcode(transcoderInput2, transcoderOutput);
        } catch (TranscoderException e) {
            log.error("JPEGTranscoder error", e);
            return null;
        }
        try {
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    /*
    * Return the image as a byte array of a PNG
    * */
    public byte[] toPNGBytes() {
        // Create a JPEG transcoder
        JPEGTranscoder jpegTranscoder = new JPEGTranscoder();
        // Set the transcoding hints.
        jpegTranscoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(0.8));
        // Create the transcoder input.
        String inputString = getHeaders() + generateSVGString();    //svgDoc is set from generateSVGString()
        TranscoderInput transcoderInput = new TranscoderInput(svgDoc);
        Reader stringReader = new StringReader(inputString);
        TranscoderInput transcoderInput2 = new TranscoderInput(stringReader);
        // Create the transcoder output.
        OutputStream osByteArray = new ByteArrayOutputStream();
        TranscoderOutput transcoderOutput = new TranscoderOutput(osByteArray);
        try {
            jpegTranscoder.transcode(transcoderInput2, transcoderOutput);
        } catch (TranscoderException e) {
            log.error("JPEGTranscoder transcode error", e);
            return null;
        }

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   * @throws IOException Failed to transform the SVG doc into an image
   */
  public void transform(org.wso2.carbon.bpel.ui.bpel2svg.SVGInterface svg,
            java.io.OutputStream os) throws IOException {
        // Create a JPEG transcoder
        JPEGTranscoder jpegTranscoder = new JPEGTranscoder();
        // Set the transcoding hints.
        jpegTranscoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, new Float(0.8));
        // Create the transcoder input.
        String inputString = svg.getHeaders() + svg.generateSVGString();
       
        Reader stringReader = new StringReader(inputString);
        TranscoderInput transcoderInput2 = new TranscoderInput(stringReader);
       
        TranscoderOutput transcoderOutput = new TranscoderOutput(os);
        try {
            jpegTranscoder.transcode(transcoderInput2, transcoderOutput);
        } catch (TranscoderException te) {
          // code compatible with jdk 1.5
            IOException ioe = new IOException("Transcoder error");
            ioe.initCause(te);
            throw ioe;
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    }

    public BufferedImage createJPG(File f) throws TranscoderException,
            IOException {
        Rasterizer r = new Rasterizer();
        JPEGTranscoder jpeg = new JPEGTranscoder();
        r.setTranscodingHints((Map) hints);
        File file = new File("image.jpg");
        FileWriter fw = new FileWriter(file);
        TranscoderOutput output = new TranscoderOutput(fw);
        r.transcode(input, output);
        r.setTranscodingHints((Map) hints);
        jpeg.transcode(input, output);
        return img;
    }
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    switch (mime) {
    case PNG:
      transcoder = new PNGTranscoder();
      break;
    case JPEG:
      transcoder = new JPEGTranscoder();
      transcoder.addTranscodingHint(JPEGTranscoder.KEY_QUALITY,
          new Float(0.9));
      break;
    case PDF:
      transcoder = new PDFTranscoder();
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                        (resources.getString("Message.exportAsJPG"));

                    // create a BufferedImage of the appropriate type
                    int w = buffer.getWidth();
                    int h = buffer.getHeight();
                    final ImageTranscoder trans = new JPEGTranscoder();
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_XML_PARSER_CLASSNAME,
                         application.getXMLParserClassName());
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_QUALITY, new Float(quality));

                    final BufferedImage img = trans.createImage(w, h);

                    // paint the buffer to the image
                    Graphics2D g2d = img.createGraphics();
                    g2d.setColor(Color.white);
                    g2d.fillRect(0, 0, w, h);
                    g2d.drawImage(buffer, null, 0, 0);
                    new Thread() {
                        public void run() {
                            try {
                                currentExportPath = f;
                                OutputStream ostream =
                                    new BufferedOutputStream(new FileOutputStream(f));
                                trans.writeImage(img, new TranscoderOutput(ostream));
                                ostream.flush();
                                ostream.close();
                            } catch (Exception ex) { }
                            statusBar.setMessage
                                (resources.getString("Message.done"));
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    protected Transcoder getTranscoder(){
        switch(code) {
            case PNG_CODE:
                return new PNGTranscoder();
            case JPEG_CODE:
                return new JPEGTranscoder();
            case TIFF_CODE:
                return new TIFFTranscoder();
            case PDF_CODE:
                try {
                    Class pdfClass = Class.forName("org.apache.fop.svg.PDFTranscoder");
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                        (resources.getString("Message.exportAsJPG"));

                    // create a BufferedImage of the appropriate type
                    int w = buffer.getWidth();
                    int h = buffer.getHeight();
                    final ImageTranscoder trans = new JPEGTranscoder();
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_XML_PARSER_CLASSNAME,
                         application.getXMLParserClassName());
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_QUALITY, new Float(quality));

                    final BufferedImage img = trans.createImage(w, h);

                    // paint the buffer to the image
                    Graphics2D g2d = img.createGraphics();
                    g2d.setColor(Color.white);
                    g2d.fillRect(0, 0, w, h);
                    g2d.drawImage(buffer, null, 0, 0);
                    new Thread() {
                        public void run() {
                            try {
                                currentExportPath = f;
                                OutputStream ostream =
                                    new BufferedOutputStream(new FileOutputStream(f));
                                trans.writeImage(img, new TranscoderOutput(ostream));
                                ostream.flush();
                                ostream.close();
                            } catch (Exception ex) { }
                            statusBar.setMessage
                                (resources.getString("Message.done"));
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                        (resources.getString("Message.exportAsJPG"));

                    // create a BufferedImage of the appropriate type
                    int w = buffer.getWidth();
                    int h = buffer.getHeight();
                    final ImageTranscoder trans = new JPEGTranscoder();
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_XML_PARSER_CLASSNAME,
                         application.getXMLParserClassName());
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_QUALITY, new Float(quality));

                    final BufferedImage img = trans.createImage(w, h);

                    // paint the buffer to the image
                    Graphics2D g2d = img.createGraphics();
                    g2d.setColor(Color.white);
                    g2d.fillRect(0, 0, w, h);
                    g2d.drawImage(buffer, null, 0, 0);
                    new Thread() {
                        public void run() {
                            try {
                                currentExportPath = f;
                                OutputStream ostream =
                                    new BufferedOutputStream(new FileOutputStream(f));
                                trans.writeImage(img, new TranscoderOutput(ostream));
                                ostream.flush();
                                ostream.close();
                            } catch (Exception ex) { }
                            statusBar.setMessage
                                (resources.getString("Message.done"));
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                        (resources.getString("Message.exportAsJPG"));

                    // create a BufferedImage of the appropriate type
                    int w = buffer.getWidth();
                    int h = buffer.getHeight();
                    final ImageTranscoder trans = new JPEGTranscoder();
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_XML_PARSER_CLASSNAME,
                         application.getXMLParserClassName());
                    trans.addTranscodingHint
                        (JPEGTranscoder.KEY_QUALITY, new Float(quality));

                    final BufferedImage img = trans.createImage(w, h);

                    // paint the buffer to the image
                    Graphics2D g2d = img.createGraphics();
                    g2d.setColor(Color.white);
                    g2d.fillRect(0, 0, w, h);
                    g2d.drawImage(buffer, null, 0, 0);
                    new Thread() {
                        public void run() {
                            try {
                                currentExportPath = f;
                                OutputStream ostream =
                                    new BufferedOutputStream(new FileOutputStream(f));
                                trans.writeImage(img, new TranscoderOutput(ostream));
                                ostream.flush();
                                ostream.close();
                            } catch (Exception ex) { }
                            statusBar.setMessage
                                (resources.getString("Message.done"));
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