Examples of org.apache.fop.area.AreaTreeModel

org.apache.fop.area.AreaTreeModel
This is the model for the area tree object. The model implementation can handle the page sequence, page and off-document items. The methods to access the page viewports can only assume the PageViewport is valid as it remains for the life of the area tree model.

     * used to find the matching Marker.
     * @return a bound RetrieveMarker instance, or null if no Marker
     * could be found.
     */
    public RetrieveMarker resolveRetrieveMarker(RetrieveMarker rm) {
        AreaTreeModel areaTreeModel = areaTreeHandler.getAreaTreeModel();
        String name = rm.getRetrieveClassName();
        int pos = rm.getRetrievePosition();
        int boundary = rm.getRetrieveBoundary();               
        
        // get marker from the current markers on area tree
        Marker mark = (Marker)getCurrentPV().getMarker(name, pos);
        if (mark == null && boundary != EN_PAGE) {
            // go back over pages until mark found
            // if document boundary then keep going
            boolean doc = boundary == EN_DOCUMENT;
            int seq = areaTreeModel.getPageSequenceCount();
            int page = areaTreeModel.getPageCount(seq) - 1;
            while (page < 0 && doc && seq > 1) {
                seq--;
                page = areaTreeModel.getPageCount(seq) - 1;
            }
            while (page >= 0) {
                PageViewport pv = areaTreeModel.getPage(seq, page);
                mark = (Marker)pv.getMarker(name, Constants.EN_LEWP);
                if (mark != null) {
                    break;
                }
                page--;
                if (page < 0 && doc && seq > 1) {
                    seq--;
                    page = areaTreeModel.getPageCount(seq) - 1;
                }
            }
        }


        if (mark == null) {

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            //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);
            
            //Iterate over all intermediate files
            AreaTreeParser parser = new AreaTreeParser();
            Source src = new StreamSource(atfile);
            Source xslt = new StreamSource(stampSheet);
            
            //Setup Transformer for XSLT processing
            TransformerFactory tFactory = TransformerFactory.newInstance();
            Transformer transformer = tFactory.newTransformer(xslt);
            
            //Send XSLT result to AreaTreeParser
            SAXResult res = new SAXResult(parser.getContentHandler(treeModel, userAgent));
            
            //Start XSLT transformation and area tree parsing
            transformer.transform(src, res);
            
            //Signal the end of the processing. The renderer can finalize the target document.
            treeModel.endDocument();
        } finally {
            out.close();
        }
    }

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            //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);
            
            //Iterate over all intermediate files
            AreaTreeParser parser = new AreaTreeParser();
            for (int i = 0; i < files.length; i++) {
                Source src = new StreamSource(files[i]);
                parser.parse(src, treeModel, userAgent);
            }
            
            //Signal the end of the processing. The renderer can finalize the target document.
            treeModel.endDocument();
        } finally {
            out.close();
        }
    }

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    private void parseAndRender(Source src, OutputStream out, String mime) throws Exception {
        AreaTreeParser parser = new AreaTreeParser();
                
        FOUserAgent userAgent = createUserAgent();
        FontInfo fontInfo = new FontInfo();
        AreaTreeModel treeModel = new RenderPagesModel(userAgent, 
                mime, fontInfo, out); 
        parser.parse(src, treeModel, userAgent);
        treeModel.endDocument();
    }

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        FOUserAgent userAgent = createUserAgent();
        userAgent.setRendererOverride(renderer);
        renderer.setUserAgent(userAgent);


        FontInfo fontInfo = new FontInfo();
        AreaTreeModel treeModel = new RenderPagesModel(userAgent, 
                MimeConstants.MIME_FOP_AREA_TREE, fontInfo, null); 
        parser.parse(src, treeModel, userAgent);
        treeModel.endDocument();


        return (Document)domResult.getNode();
    }

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    /** @see org.apache.fop.cli.InputHandler */
    public void renderTo(FOUserAgent userAgent, String outputFormat, OutputStream out) 
                throws FOPException {
        FontInfo fontInfo = new FontInfo();
        AreaTreeModel treeModel = new RenderPagesModel(userAgent, 
                outputFormat, fontInfo, out);
        
        //Iterate over all intermediate files
        AreaTreeParser parser = new AreaTreeParser();
        
        // Resulting SAX events (the generated FO) must be piped through to FOP
        Result res = new SAXResult(parser.getContentHandler(treeModel, userAgent));


        transformTo(res);
        
        try {
            treeModel.endDocument();
        } catch (SAXException e) {
            throw new FOPException(e);
        }
    }

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     * used to find the matching Marker.
     * @return a bound RetrieveMarker instance, or null if no Marker
     * could be found.
     */
    public RetrieveMarker resolveRetrieveMarker(RetrieveMarker rm) {
        AreaTreeModel areaTreeModel = areaTreeHandler.getAreaTreeModel();
        String name = rm.getRetrieveClassName();
        int pos = rm.getRetrievePosition();
        int boundary = rm.getRetrieveBoundary();


        // get marker from the current markers on area tree
        Marker mark = (Marker)getCurrentPV().getMarker(name, pos);
        if (mark == null && boundary != EN_PAGE) {
            // go back over pages until mark found
            // if document boundary then keep going
            boolean doc = boundary == EN_DOCUMENT;
            int seq = areaTreeModel.getPageSequenceCount();
            int page = areaTreeModel.getPageCount(seq) - 1;
            while (page < 0 && doc && seq > 1) {
                seq--;
                page = areaTreeModel.getPageCount(seq) - 1;
            }
            while (page >= 0) {
                PageViewport pv = areaTreeModel.getPage(seq, page);
                mark = (Marker)pv.getMarker(name, Constants.EN_LEWP);
                if (mark != null) {
                    break;
                }
                page--;
                if (page < 0 && doc && seq > 1) {
                    seq--;
                    page = areaTreeModel.getPageCount(seq) - 1;
                }
            }
        }


        if (mark == null) {

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            } catch (IllegalStateException e) {
                // empty title; do nothing
            }
        }


        AreaTreeModel areaTreeModel = areaTreeHandler.getAreaTreeModel();
        org.apache.fop.area.PageSequence pageSequenceAreaObject
                = new org.apache.fop.area.PageSequence(title);
        transferExtensions(pageSequenceAreaObject);
        pageSequenceAreaObject.setLanguage(getPageSequence().getLanguage());
        pageSequenceAreaObject.setCountry(getPageSequence().getCountry());
        areaTreeModel.startPageSequence(pageSequenceAreaObject);
        if (log.isDebugEnabled()) {
            log.debug("Starting layout");
        }


        curPage = makeNewPage(false, false);

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    /** {@inheritDoc} */
    public void renderTo(FOUserAgent userAgent, String outputFormat, OutputStream out)
                throws FOPException {
        FontInfo fontInfo = new FontInfo();
        AreaTreeModel treeModel = new RenderPagesModel(userAgent,
                outputFormat, fontInfo, out);


        //Iterate over all intermediate files
        AreaTreeParser parser = new AreaTreeParser();


        // Resulting SAX events (the generated FO) must be piped through to FOP
        Result res = new SAXResult(parser.getContentHandler(treeModel, userAgent));


        transformTo(res);


        try {
            treeModel.endDocument();
        } catch (SAXException e) {
            throw new FOPException(e);
        }
    }

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            //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);
            
            //Iterate over all intermediate files
            AreaTreeParser parser = new AreaTreeParser();
            Source src = new StreamSource(atfile);
            Source xslt = new StreamSource(stampSheet);
            
            //Setup Transformer for XSLT processing
            TransformerFactory tFactory = TransformerFactory.newInstance();
            Transformer transformer = tFactory.newTransformer(xslt);
            
            //Send XSLT result to AreaTreeParser
            SAXResult res = new SAXResult(parser.getContentHandler(treeModel, userAgent));
            
            //Start XSLT transformation and area tree parsing
            transformer.transform(src, res);
            
            //Signal the end of the processing. The renderer can finalize the target document.
            treeModel.endDocument();
        } finally {
            out.close();
        }
    }

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