Package javax.imageio.metadata

Examples of javax.imageio.metadata.IIOMetadataNode

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    }

    private static IIOMetadataNode createRationalField(int number, String name, int numerator,
                                                       int denominator)
    {
        IIOMetadataNode field, arrayNode, valueNode;
        field = new IIOMetadataNode("TIFFField");
        field.setAttribute("number", Integer.toString(number));
        field.setAttribute("name", name);
        arrayNode = new IIOMetadataNode("TIFFRationals");
        field.appendChild(arrayNode);
        valueNode = new IIOMetadataNode("TIFFRational");
        arrayNode.appendChild(valueNode);
        valueNode.setAttribute("value", numerator + "/" + denominator);
        return field;
    }
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            return;
        }

        // see http://docs.oracle.com/javase/7/docs/api/javax/imageio/
        //     metadata/doc-files/standard_metadata.html
        IIOMetadataNode root = (IIOMetadataNode) metadata.getAsTree(format);
        try
        {
            StringWriter xmlStringWriter = new StringWriter();
            StreamResult streamResult = new StreamResult(xmlStringWriter);
            Transformer transformer = TransformerFactory.newInstance().newTransformer();
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        NodeList nodeList = parentNode.getElementsByTagName(name);
        if (nodeList != null && nodeList.getLength() > 0)
        {
            return (IIOMetadataNode) nodeList.item(0);
        }
        IIOMetadataNode childNode = new IIOMetadataNode(name);
        parentNode.appendChild(childNode);
        return childNode;
    }
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    }

    // sets the DPI metadata
    private static void setDPI(IIOMetadata metadata, int dpi, String formatName)
    {
        IIOMetadataNode root = (IIOMetadataNode) metadata.getAsTree(MetaUtil.STANDARD_METADATA_FORMAT);

        IIOMetadataNode dimension = getOrCreateChildNode(root, "Dimension");

        // PNG writer doesn't conform to the spec which is
        // "The width of a pixel, in millimeters"
        // but instead counts the pixels per millimeter
        float res = "PNG".equals(formatName.toUpperCase())
                    ? dpi / 25.4f
                    : 25.4f / dpi;

        IIOMetadataNode child;

        child = getOrCreateChildNode(dimension, "HorizontalPixelSize");
        child.setAttribute("value", Double.toString(res));

        child = getOrCreateChildNode(dimension, "VerticalPixelSize");
        child.setAttribute("value", Double.toString(res));

        try
        {
            metadata.mergeTree(MetaUtil.STANDARD_METADATA_FORMAT, root);
        }
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        Element root = (Element) metadata.getAsTree(MetaUtil.JPEG_NATIVE_FORMAT);
        NodeList jvarNodeList = root.getElementsByTagName("JPEGvariety");
        Element jvarChild;
        if (jvarNodeList.getLength() == 0)
        {
            jvarChild = new IIOMetadataNode("JPEGvariety");
            root.appendChild(jvarChild);
        }
        else
        {
            jvarChild = (Element) jvarNodeList.item(0);
        }

        NodeList jfifNodeList = jvarChild.getElementsByTagName("app0JFIF");
        Element jfifChild;
        if (jfifNodeList.getLength() == 0)
        {
            jfifChild = new IIOMetadataNode("app0JFIF");
            jvarChild.appendChild(jfifChild);
        }
        else
        {
            jfifChild = (Element) jfifNodeList.item(0);
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                result = node;
            }
        }

        if (result == null) {
            result = new IIOMetadataNode(name);
            root.appendChild(result);
        }

        return result;
    }
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            ImageWriteParam defaultImageWriteParam = imageWriter.getDefaultWriteParam();
            IIOMetadata imageMetaData = imageWriter.getDefaultImageMetadata(
                ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB), defaultImageWriteParam);
            String metaFormatName = imageMetaData.getNativeMetadataFormatName();
            Node root = imageMetaData.getAsTree(metaFormatName);
            IIOMetadataNode graphicsControlExtensionNode = (IIOMetadataNode) getOrCreateChild(root, "GraphicControlExtension");

            // http://java.sun.com/javase/6/docs/api/javax/imageio/metadata/doc-files/gif_metadata.html
            graphicsControlExtensionNode.setAttribute("disposalMethod", "none");
            graphicsControlExtensionNode.setAttribute("userInputFlag", "FALSE");
            graphicsControlExtensionNode.setAttribute("transparentColorFlag", "FALSE");
            graphicsControlExtensionNode.setAttribute("delayTime", Integer.toString(userResource.getFrameDelay() / 100));
            graphicsControlExtensionNode.setAttribute("transparentColorIndex", "0");

            Node applicationExtensionsNode = getOrCreateChild(root, "ApplicationExtensions");
            IIOMetadataNode netscapeExtension = new IIOMetadataNode("ApplicationExtension");

            netscapeExtension.setAttribute("applicationID", "NETSCAPE");
            netscapeExtension.setAttribute("authenticationCode", "2.0");

            byte numLoops = (byte) (userResource.isLooped() ? 0x0 : 0x1);

            netscapeExtension.setUserObject(new byte[] { 0x1, numLoops, 0x0 });
            applicationExtensionsNode.appendChild(netscapeExtension);
            imageMetaData.setFromTree(metaFormatName, root);

            imageWriter.prepareWriteSequence(null);
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    private static boolean addResolution(IIOMetadata meta, int resolution)
    {
        if (!meta.isReadOnly() && meta.isStandardMetadataFormatSupported())
        {
            IIOMetadataNode root = (IIOMetadataNode)meta.getAsTree(STANDARD_METADATA_FORMAT);
            IIOMetadataNode dim = getChildNode(root, "Dimension");
            if (dim == null)
            {
                dim = new IIOMetadataNode("Dimension");
                root.appendChild(dim);
            }
            IIOMetadataNode child;
            child = getChildNode(dim, "HorizontalPixelSize");
            if (child == null)
            {
                child = new IIOMetadataNode("HorizontalPixelSize");
                dim.appendChild(child);
            }
            child.setAttribute("value",
                    Double.toString(resolution / 25.4));
            child = getChildNode(dim, "VerticalPixelSize");
            if (child == null)
            {
                child = new IIOMetadataNode("VerticalPixelSize");
                dim.appendChild(child);
            }
            child.setAttribute("value",
                    Double.toString(resolution / 25.4));
            try
            {
                meta.mergeTree(STANDARD_METADATA_FORMAT, root);
            }
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        }
        ByteBuffer result = null;
        Node[] markers = new JpegHeader(meta).getApp1MarkerNodes();
        for(Node m : markers){
            if(m instanceof IIOMetadataNode){
                IIOMetadataNode iiomn = (IIOMetadataNode) m;
                Object o = iiomn.getUserObject();
                if(o instanceof byte[]){
                    byte[] data = (byte[]) o;
                    if(data.length > 33){
                        String xmpnamespace = new String(data,0,28);
                        if(xmpnamespace.equals(XMP_NAMESPACE)){
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    protected IIOMetadata updateMetadata(IIOMetadata meta, ImageWriterParams params) {
        //ImageIODebugUtil.dumpMetadata(meta);
        if (JPEG_NATIVE_FORMAT.equals(meta.getNativeMetadataFormatName())) {
            meta = addAdobeTransform(meta);

            IIOMetadataNode root = (IIOMetadataNode)meta.getAsTree(JPEG_NATIVE_FORMAT);
            //IIOMetadataNode root = new IIOMetadataNode(jpegmeta);
           
            IIOMetadataNode jv = getChildNode(root, "JPEGvariety");
            if (jv == null) {
                jv = new IIOMetadataNode("JPEGvariety");
                root.appendChild(jv);
            }
            IIOMetadataNode child;
            if (params.getResolution() != null) {
                child = getChildNode(jv, "app0JFIF");
                if (child == null) {
                    child = new IIOMetadataNode("app0JFIF");
                    jv.appendChild(child);
                }
                //JPEG gets special treatment because there seems to be a bug in
                //the JPEG codec in ImageIO converting the pixel size incorrectly
                //(or not at all) when using standard metadata format.
                child.setAttribute("majorVersion", null);
                child.setAttribute("minorVersion", null);
                child.setAttribute("resUnits", "1"); //dots per inch
                child.setAttribute("Xdensity", params.getResolution().toString());
                child.setAttribute("Ydensity", params.getResolution().toString());
                child.setAttribute("thumbWidth", null);
                child.setAttribute("thumbHeight", null);
               
            }
           
            /*
            IIOMetadataNode ms = getChildNode(root, "markerSequence");
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