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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render.afp;
-
- // FOP
- import java.awt.Dimension;
- import java.awt.geom.AffineTransform;
- import java.io.IOException;
-
- import org.w3c.dom.Document;
-
- import org.apache.batik.bridge.BridgeContext;
- import org.apache.batik.dom.svg.SVGDOMImplementation;
- import org.apache.batik.gvt.GraphicsNode;
-
- import org.apache.xmlgraphics.image.loader.ImageManager;
- import org.apache.xmlgraphics.image.loader.ImageSessionContext;
- import org.apache.xmlgraphics.java2d.Graphics2DImagePainter;
- import org.apache.xmlgraphics.util.MimeConstants;
-
- import org.apache.fop.afp.AFPGraphics2D;
- import org.apache.fop.afp.AFPGraphicsObjectInfo;
- import org.apache.fop.afp.AFPObjectAreaInfo;
- import org.apache.fop.afp.AFPPaintingState;
- import org.apache.fop.afp.AFPResourceInfo;
- import org.apache.fop.afp.AFPResourceManager;
- import org.apache.fop.afp.AFPUnitConverter;
- import org.apache.fop.afp.svg.AFPBridgeContext;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.image.loader.batik.BatikUtil;
- import org.apache.fop.image.loader.batik.Graphics2DImagePainterImpl;
- import org.apache.fop.render.AbstractGenericSVGHandler;
- import org.apache.fop.render.Renderer;
- import org.apache.fop.render.RendererContext;
- import org.apache.fop.render.RendererContext.RendererContextWrapper;
- import org.apache.fop.svg.SVGEventProducer;
- import org.apache.fop.svg.SVGUserAgent;
-
- /**
- * AFP XML handler for SVG. Uses Apache Batik for SVG processing.
- * This handler handles XML for foreign objects and delegates to AFPGraphics2DAdapter.
- * @see AFPGraphics2DAdapter
- */
- public class AFPSVGHandler extends AbstractGenericSVGHandler {
-
- private boolean paintAsBitmap = false;
-
- /** {@inheritDoc} */
- public void handleXML(RendererContext context,
- Document doc, String ns) throws Exception {
- if (SVGDOMImplementation.SVG_NAMESPACE_URI.equals(ns)) {
- renderSVGDocument(context, doc);
- }
- }
-
- /**
- * Render the SVG document.
- *
- * @param rendererContext the renderer context
- * @param doc the SVG document
- * @throws IOException In case of an I/O error while painting the image
- */
- protected void renderSVGDocument(final RendererContext rendererContext,
- final Document doc) throws IOException {
-
- AFPRendererContext afpRendererContext = (AFPRendererContext)rendererContext;
- AFPInfo afpInfo = afpRendererContext.getInfo();
-
- this.paintAsBitmap = afpInfo.paintAsBitmap();
-
- FOUserAgent userAgent = rendererContext.getUserAgent();
-
- // fallback paint as bitmap
- String uri = getDocumentURI(doc);
- if (paintAsBitmap) {
- try {
- super.renderSVGDocument(rendererContext, doc);
- } catch (IOException ioe) {
- SVGEventProducer eventProducer = SVGEventProducer.Provider.get(
- userAgent.getEventBroadcaster());
- eventProducer.svgRenderingError(this, ioe, uri);
- }
- return;
- }
-
- // Create a new AFPGraphics2D
- final boolean textAsShapes = afpInfo.strokeText();
- AFPGraphics2D g2d = afpInfo.createGraphics2D(textAsShapes);
-
- 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);
-
- // Build the SVG DOM and provide the painter with it
- GraphicsNode root = buildGraphicsNode(userAgent, bridgeContext, clonedDoc);
-
- // Create Graphics2DImagePainter
- final RendererContextWrapper wrappedContext
- = RendererContext.wrapRendererContext(rendererContext);
- Dimension imageSize = getImageSize(wrappedContext);
- Graphics2DImagePainter painter
- = createGraphics2DImagePainter(bridgeContext, root, imageSize);
-
- // Create AFPObjectAreaInfo
- RendererContextWrapper rctx = RendererContext.wrapRendererContext(rendererContext);
- int x = rctx.getCurrentXPosition();
- int y = rctx.getCurrentYPosition();
- int width = afpInfo.getWidth();
- int height = afpInfo.getHeight();
- int resolution = afpInfo.getResolution();
-
- paintingState.save(); // save
-
- AFPObjectAreaInfo objectAreaInfo
- = createObjectAreaInfo(paintingState, x, y, width, height, resolution);
-
- // Create AFPGraphicsObjectInfo
- AFPResourceInfo resourceInfo = afpInfo.getResourceInfo();
- AFPGraphicsObjectInfo graphicsObjectInfo = createGraphicsObjectInfo(
- paintingState, painter, userAgent, resourceInfo, g2d);
- graphicsObjectInfo.setObjectAreaInfo(objectAreaInfo);
-
- // Create the GOCA GraphicsObject in the DataStream
- AFPResourceManager resourceManager = afpInfo.getResourceManager();
- resourceManager.createObject(graphicsObjectInfo);
-
- paintingState.restore(); // resume
- }
-
- private AFPObjectAreaInfo createObjectAreaInfo(AFPPaintingState paintingState,
- int x, int y, int width, int height, int resolution) {
- // set the data object parameters
-
- AffineTransform at = paintingState.getData().getTransform();
- at.translate(x, y);
- AFPUnitConverter unitConv = paintingState.getUnitConverter();
-
- int rotation = paintingState.getRotation();
- int objX = (int) Math.round(at.getTranslateX());
- int objY = (int) Math.round(at.getTranslateY());
- int objWidth = Math.round(unitConv.mpt2units(width));
- int objHeight = Math.round(unitConv.mpt2units(height));
- AFPObjectAreaInfo objectAreaInfo = new AFPObjectAreaInfo(objX, objY, objWidth, objHeight,
- resolution, rotation);
- return objectAreaInfo;
- }
-
- private AFPGraphicsObjectInfo createGraphicsObjectInfo
- (AFPPaintingState paintingState, Graphics2DImagePainter painter,
- FOUserAgent userAgent, AFPResourceInfo resourceInfo, AFPGraphics2D g2d) {
- AFPGraphicsObjectInfo graphicsObjectInfo = new AFPGraphicsObjectInfo();
-
- String uri = paintingState.getImageUri();
- graphicsObjectInfo.setUri(uri);
-
- graphicsObjectInfo.setMimeType(MimeConstants.MIME_AFP_GOCA);
-
- graphicsObjectInfo.setResourceInfo(resourceInfo);
-
- graphicsObjectInfo.setPainter(painter);
-
- // Set the afp graphics 2d implementation
- graphicsObjectInfo.setGraphics2D(g2d);
-
- return graphicsObjectInfo;
- }
-
- /**
- * @param userAgent a user agent instance
- * @param g2d a graphics context
- * @return a bridge context
- */
- public static BridgeContext createBridgeContext(FOUserAgent userAgent, AFPGraphics2D g2d) {
- ImageManager imageManager = userAgent.getFactory().getImageManager();
-
- SVGUserAgent svgUserAgent
- = new SVGUserAgent(userAgent, new AffineTransform());
-
- ImageSessionContext imageSessionContext = userAgent.getImageSessionContext();
-
- FontInfo fontInfo = g2d.getFontInfo();
- return new AFPBridgeContext(svgUserAgent, fontInfo, imageManager, imageSessionContext,
- new AffineTransform(), g2d);
- }
-
- /** {@inheritDoc} */
- public boolean supportsRenderer(Renderer renderer) {
- return false;
- }
-
- /** {@inheritDoc} */
- protected void updateRendererContext(RendererContext context) {
- //Work around a problem in Batik: Gradients cannot be done in ColorSpace.CS_GRAY
- context.setProperty(AFPRendererContextConstants.AFP_GRAYSCALE, Boolean.FALSE);
- }
-
- private Graphics2DImagePainter createGraphics2DImagePainter(BridgeContext ctx,
- GraphicsNode root, Dimension imageSize) {
- Graphics2DImagePainter painter = null;
- if (paintAsBitmap()) {
- // paint as IOCA Image
- painter = super.createGraphics2DImagePainter(root, ctx, imageSize);
- } else {
- // paint as GOCA Graphics
- painter = new Graphics2DImagePainterImpl(root, ctx, imageSize);
- }
- return painter;
- }
-
- /**
- * Returns true if the SVG is to be painted as a bitmap
- *
- * @return true if the SVG is to be painted as a bitmap
- */
- private boolean paintAsBitmap() {
- return paintAsBitmap;
- }
-
- }
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