Examples of org.apache.batik.bridge.BridgeContext

org.apache.batik.bridge.BridgeContext
This class represents a context used by the various bridges and the builder. A bridge context is associated to a particular document and cannot be reused. The context encapsulates the dynamic bindings between DOM elements and GVT nodes, graphic contexts such as a GraphicsNodeRenderContext, and the different objects required by the GVT builder to interpret a SVG DOM tree such as the current viewport or the user agent. @author Thierry Kormann @version $Id: BridgeContext.java,v 1.57 2003/03/14 21:53:20 nsochele Exp $

        
        float ptom = context.getUserAgent().getSourcePixelUnitToMillimeter();
        SVGUserAgent ua = new SVGUserAgent(ptom, new AffineTransform());
        
        GVTBuilder builder = new GVTBuilder();
        BridgeContext ctx = new BridgeContext(ua);
        
        GraphicsNode root;
        try {
            root = builder.build(ctx, doc);
        } catch (Exception e) {
            log.error("SVG graphic could not be built: " + e.getMessage(), e);
            return;
        }
        
        // If no viewbox is defined in the svg file, a viewbox of 100x100 is
        // assumed, as defined in SVGUserAgent.getViewportSize()
        float iw = (float) ctx.getDocumentSize().getWidth() * 1000f;
        float ih = (float) ctx.getDocumentSize().getHeight() * 1000f;
        
        float w = (float) info.width;
        float h = (float) info.height;


        AffineTransform origTransform = info.state.getGraph().getTransform();

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        }
    }


    /** @see org.apache.batik.transcoder.SVGAbstractTranscoder#createBridgeContext() */
    protected BridgeContext createBridgeContext() {
        BridgeContext ctx = new PDFBridgeContext(userAgent, graphics.getFontInfo());
        return ctx;
    }

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        //Prepare
        SVGUserAgent ua = new SVGUserAgent(
                context.getUserAgent().getSourcePixelUnitToMillimeter(),
                new AffineTransform());
        GVTBuilder builder = new GVTBuilder();
        final BridgeContext ctx = new BridgeContext(ua);


        //Build the GVT tree
        final GraphicsNode root;
        try {
            root = builder.build(ctx, doc);
        } catch (Exception e) {
            log.error("SVG graphic could not be built: " + e.getMessage(), e);
            return;
        }


        //Create the painter
        Graphics2DImagePainter painter = new Graphics2DImagePainter() {


            public void paint(Graphics2D g2d, Rectangle2D area) {
                // If no viewbox is defined in the svg file, a viewbox of 100x100 is
                // assumed, as defined in SVGUserAgent.getViewportSize()
                float iw = (float) ctx.getDocumentSize().getWidth();
                float ih = (float) ctx.getDocumentSize().getHeight();
                float w = (float) area.getWidth();
                float h = (float) area.getHeight();
                g2d.scale(w / iw, h / ih);


                root.paint(g2d);

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                Element e = doc.getRootElement();
                String s;
                SVGUserAgent userAg = new SVGUserAgent(pixelUnitToMM,
                            new AffineTransform());
                BridgeContext ctx = new BridgeContext(userAg);
                UnitProcessor.Context uctx = UnitProcessor.createContext(ctx, e);


                // 'width' attribute - default is 100%
                s = e.getAttributeNS(null,
                        SVGOMDocument.SVG_WIDTH_ATTRIBUTE);

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    }


    /** @see org.apache.batik.transcoder.SVGAbstractTranscoder#createBridgeContext() */
    protected BridgeContext createBridgeContext() {


        BridgeContext ctx = new BridgeContext(userAgent);
        if (!isTextStroked()) {
            TextHandler handler = graphics.getCustomTextHandler();
            if (handler instanceof NativeTextHandler) {
                NativeTextHandler nativeTextHandler = (NativeTextHandler)handler; 
                PSTextPainter textPainter = new PSTextPainter(nativeTextHandler);
                ctx.setTextPainter(textPainter);
                ctx.putBridge(new PSTextElementBridge(textPainter));
            }
        }


        //ctx.putBridge(new PSImageElementBridge());
        return ctx;

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        PSGraphics2D graphics = new PSGraphics2D(strokeText, gen);
        graphics.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext());


        GVTBuilder builder = new GVTBuilder();
        NativeTextHandler nativeTextHandler = null;
        BridgeContext ctx = new BridgeContext(ua);
        if (!strokeText) {
            nativeTextHandler = new NativeTextHandler(graphics, psInfo.getFontInfo());
            graphics.setCustomTextHandler(nativeTextHandler);
            PSTextPainter textPainter = new PSTextPainter(nativeTextHandler);
            ctx.setTextPainter(textPainter);            
            PSTextElementBridge tBridge = new PSTextElementBridge(textPainter);
            ctx.putBridge(tBridge);
        }


        GraphicsNode root;
        try {
            root = builder.build(ctx, doc);
        } catch (Exception e) {
            log.error("SVG graphic could not be built: "
                                   + e.getMessage(), e);
            return;
        }
        // get the 'width' and 'height' attributes of the SVG document
        float w = (float)ctx.getDocumentSize().getWidth() * 1000f;
        float h = (float)ctx.getDocumentSize().getHeight() * 1000f;


        float sx = psInfo.getWidth() / (float)w;
        float sy = psInfo.getHeight() / (float)h;


        ctx = null;

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            String xmlParser = XMLResourceDescriptor.getXMLParserClassName();
            SAXSVGDocumentFactory df = new SAXSVGDocumentFactory(xmlParser);
            SVGDocument doc = df.createSVGDocument(url.toString());
            UserAgent userAgent = new UserAgentAdapter();
            DocumentLoader loader = new DocumentLoader(userAgent);
            BridgeContext ctx = new BridgeContext(userAgent, loader);
            ctx.setDynamicState(BridgeContext.DYNAMIC);
            GVTBuilder builder = new GVTBuilder();
            this.svgIcon = builder.build(ctx, doc);
        } catch (IOException e) {
          logger.warn("Failed to load SVG icon.");
            // TODO Auto-generated catch block

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        if (ptm != null) {
            pxToMillimeter = (float)(UnitConv.IN2MM / ptm.doubleValue());
        }
        UserAgent ua = createBatikUserAgent(pxToMillimeter);
        GVTBuilder builder = new GVTBuilder();
        final BridgeContext ctx = new BridgeContext(ua);


        Document doc = svg.getDocument();
        //Cloning SVG DOM as Batik attaches non-thread-safe facilities (like the CSS engine)
        //to it.
        Document clonedDoc = BatikUtil.cloneSVGDocument(doc);

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                public void displayMessage(String message) {
                    log.debug(message);
                }


            };
            BridgeContext ctx = new BridgeContext(userAg);
            UnitProcessor.Context uctx = UnitProcessor.createContext(ctx, e);


            String s;
            // 'width' attribute - default is 100%
            s = e.getAttributeNS(null, SVGOMDocument.SVG_WIDTH_ATTRIBUTE);

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        AFPPaintingState paintingState = g2d.getPaintingState();
        paintingState.setImageUri(uri);


        // Create an AFPBridgeContext
        BridgeContext bridgeContext = createBridgeContext(userAgent, g2d);


        //Cloning SVG DOM as Batik attaches non-thread-safe facilities (like the CSS engine)
        //to it.
        Document clonedDoc = BatikUtil.cloneSVGDocument(doc);

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