Examples of org.apache.fop.apps.FOUserAgent

org.apache.fop.apps.FOUserAgent
This is the user agent for FOP. It is the entity through which you can interact with the XSL-FO processing and is used by the processing to obtain user configurable options.
Renderer specific extensions (that do not produce normal areas on the output) will be done like so:
The extension will create an area, custom if necessary
this area will be added to the user agent with a key
the renderer will know keys for particular extensions
eg. bookmarks will be held in a special hierarchical area representing the title and bookmark structure
These areas may contain resolvable areas that will be processed with other resolvable areas

            Document doc = child.getDOMDocument();
            String ns = child.getNamespaceURI();


            ImageInfo info = new ImageInfo(null, null);
            // Set the resolution to that of the FOUserAgent
            FOUserAgent ua = ifo.getUserAgent();
            ImageSize size = new ImageSize();
            size.setResolution(ua.getSourceResolution());


            // Set the image size to the size of the svg.
            Point2D csize = new Point2D.Float(-1, -1);
            Point2D intrinsicDimensions = child.getDimension(csize);
            size.setSizeInMillipoints(
                    (int)Math.round(intrinsicDimensions.getX() * 1000),
                    (int)Math.round(intrinsicDimensions.getY() * 1000));
            size.calcPixelsFromSize();
            info.setSize(size);


            ImageXMLDOM image = new ImageXMLDOM(info, doc, ns);


            FOUserAgent userAgent = ifo.getUserAgent();
            ImageManager manager = userAgent.getFactory().getImageManager();
            Map hints = ImageUtil.getDefaultHints(ua.getImageSessionContext());
            Image converted = manager.convertImage(image, FLAVORS, hints);
            putGraphic(ifo, converted);


        } catch (Exception e) {

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     * @throws IOException In case of an I/O error
     */
    private void putGraphic(AbstractGraphics abstractGraphic, ImageInfo info)
            throws IOException {
        try {
            FOUserAgent userAgent = abstractGraphic.getUserAgent();
            ImageManager manager = userAgent.getFactory().getImageManager();
            ImageSessionContext sessionContext = userAgent.getImageSessionContext();
            Map hints = ImageUtil.getDefaultHints(sessionContext);
            Image image = manager.getImage(info, FLAVORS, hints, sessionContext);


            putGraphic(abstractGraphic, image);
        } catch (ImageException ie) {

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    }


    public void testSVG() throws Exception {
        String uri = "test/resources/images/img-w-size.svg";


        FOUserAgent userAgent = fopFactory.newFOUserAgent();


        ImageManager manager = fopFactory.getImageManager();
        ImageInfo info = manager.preloadImage(uri, userAgent.getImageSessionContext());
        assertNotNull("ImageInfo must not be null", info);


        Image img = manager.getImage(info, ImageFlavor.XML_DOM,
                userAgent.getImageSessionContext());
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.XML_DOM, img.getFlavor());
        ImageXMLDOM imgDom = (ImageXMLDOM)img;
        assertNotNull(imgDom.getDocument());
        assertEquals("http://www.w3.org/2000/svg", imgDom.getRootNamespace());
        info = imgDom.getInfo(); //Switch to the ImageInfo returned by the image
        assertEquals(16000, info.getSize().getWidthMpt());
        assertEquals(16000, info.getSize().getHeightMpt());


        img = manager.getImage(info, ImageFlavor.RENDERED_IMAGE,
                    userAgent.getImageSessionContext());
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.RENDERED_IMAGE, img.getFlavor());
        ImageRendered imgRed = (ImageRendered)img;
        assertNotNull(imgRed.getRenderedImage());
        if (DEBUG_TARGET_DIR != null) {
            ImageWriterUtil.saveAsPNG(imgRed.getRenderedImage(),
                    (int)userAgent.getTargetResolution(),
                    new File(DEBUG_TARGET_DIR, "out.svg.png"));
        }
        assertEquals(67, imgRed.getRenderedImage().getWidth());
        assertEquals(67, imgRed.getRenderedImage().getHeight());
        info = imgRed.getInfo(); //Switch to the ImageInfo returned by the image

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        FopFactory ff = FopFactory.newInstance();
        ff.setSourceResolution(96);
        ff.setTargetResolution(300);


        FOUserAgent userAgent = ff.newFOUserAgent();


        ImageManager manager = ff.getImageManager();
        ImageInfo info = manager.preloadImage(uri, userAgent.getImageSessionContext());
        assertNotNull("ImageInfo must not be null", info);


        Image img = manager.getImage(info, ImageFlavor.XML_DOM,
                userAgent.getImageSessionContext());
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.XML_DOM, img.getFlavor());
        ImageXMLDOM imgDom = (ImageXMLDOM)img;
        assertNotNull(imgDom.getDocument());
        assertEquals("http://www.w3.org/2000/svg", imgDom.getRootNamespace());
        info = imgDom.getInfo(); //Switch to the ImageInfo returned by the image
        assertEquals(96, info.getSize().getDpiHorizontal(), 0);
        assertEquals(340158, info.getSize().getWidthMpt());
        assertEquals(340158, info.getSize().getHeightMpt());
        assertEquals(454, info.getSize().getWidthPx());
        assertEquals(454, info.getSize().getHeightPx());


        img = manager.getImage(info, ImageFlavor.RENDERED_IMAGE,
                    userAgent.getImageSessionContext());
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.RENDERED_IMAGE, img.getFlavor());
        ImageRendered imgRed = (ImageRendered)img;
        assertNotNull(imgRed.getRenderedImage());
        if (DEBUG_TARGET_DIR != null) {
            ImageWriterUtil.saveAsPNG(imgRed.getRenderedImage(),
                    (int)userAgent.getTargetResolution(),
                    new File(DEBUG_TARGET_DIR, "circles.svg.png"));
        }
        assertEquals(1418, imgRed.getRenderedImage().getWidth());
        assertEquals(1418, imgRed.getRenderedImage().getHeight());
        info = imgRed.getInfo(); //Switch to the ImageInfo returned by the image

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    }


    public void testWMF() throws Exception {
        String uri = "test/resources/images/testChart.wmf";


        FOUserAgent userAgent = fopFactory.newFOUserAgent();


        ImageManager manager = fopFactory.getImageManager();
        ImageInfo info = manager.preloadImage(uri, userAgent.getImageSessionContext());
        assertNotNull("ImageInfo must not be null", info);


        Image img = manager.getImage(info, ImageFlavor.RENDERED_IMAGE,
                userAgent.getImageSessionContext());
        assertNotNull("Image must not be null", img);
        assertEquals(ImageFlavor.RENDERED_IMAGE, img.getFlavor());
        ImageRendered imgRed = (ImageRendered)img;
        assertNotNull(imgRed.getRenderedImage());
        if (DEBUG_TARGET_DIR != null) {
            ImageWriterUtil.saveAsPNG(imgRed.getRenderedImage(),
                    (int)userAgent.getTargetResolution(),
                    new File(DEBUG_TARGET_DIR, "out.wmf.png"));
        }
        assertEquals(3300, imgRed.getRenderedImage().getWidth());
        assertEquals(2550, imgRed.getRenderedImage().getHeight());
        info = imgRed.getInfo(); //Switch to the ImageInfo returned by the image

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        //Set up DocPrintJob instance
        DocPrintJob printJob = createDocPrintJob();


        //Set up a custom user agent so we can supply our own renderer instance
        FOUserAgent userAgent = fopFactory.newFOUserAgent();


        PageableRenderer renderer = new PageableRenderer();
        renderer.setUserAgent(userAgent);
        userAgent.setRendererOverride(renderer);


        // Construct FOP with desired output format
        Fop fop = fopFactory.newFop(userAgent);


        // Setup JAXP using identity transformer

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        OutputStream out = new java.io.FileOutputStream(pdffile);
        out = new java.io.BufferedOutputStream(out);
        try {
            //Setup fonts and user agent
            FontInfo fontInfo = new FontInfo();
            FOUserAgent userAgent = fopFactory.newFOUserAgent();


            //Construct the AreaTreeModel that will received the individual pages
            AreaTreeModel treeModel = new RenderPagesModel(userAgent,
                    MimeConstants.MIME_PDF, fontInfo, out);

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     */
    public void convertToAreaTreeXML(Source src, Source xslt, File areaTreeFile)
                throws IOException, FOPException, TransformerException {


        //Create a user agent
        FOUserAgent userAgent = fopFactory.newFOUserAgent();


        //Create an instance of the target renderer so the XMLRenderer can use its font setup
        Renderer targetRenderer = userAgent.getRendererFactory().createRenderer(
                userAgent, MimeConstants.MIME_PDF);


        //Create the XMLRenderer to create the area tree XML
        XMLRenderer xmlRenderer = new XMLRenderer();
        xmlRenderer.setUserAgent(userAgent);


        //Tell the XMLRenderer to mimic the target renderer
        xmlRenderer.mimicRenderer(targetRenderer);


        //Make sure the prepared XMLRenderer is used
        userAgent.setRendererOverride(xmlRenderer);


        // Setup output
        OutputStream out = new java.io.FileOutputStream(areaTreeFile);
        out = new java.io.BufferedOutputStream(out);
        try {

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        OutputStream out = new java.io.FileOutputStream(pdffile);
        out = new java.io.BufferedOutputStream(out);
        try {
            //Setup fonts and user agent
            FontInfo fontInfo = new FontInfo();
            FOUserAgent userAgent = fopFactory.newFOUserAgent();


            //Construct the AreaTreeModel that will received the individual pages
            AreaTreeModel treeModel = new RenderPagesModel(userAgent,
                    MimeConstants.MIME_PDF, fontInfo, out);

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    public void convertFO2PDF(File fo, File pdf) throws IOException, FOPException {


        OutputStream out = null;


        try {
            FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
            // configure foUserAgent as desired


            // Setup output stream.  Note: Using BufferedOutputStream
            // for performance reasons (helpful with FileOutputStreams).
            out = new FileOutputStream(pdf);

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