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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.java2d;
-
- import java.awt.geom.AffineTransform;
- import java.io.IOException;
- import java.util.Map;
-
- import org.apache.batik.bridge.BridgeContext;
- import org.apache.batik.bridge.GVTBuilder;
- import org.apache.batik.gvt.GraphicsNode;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
- import org.apache.fop.render.AbstractGenericSVGHandler;
- import org.apache.fop.render.Renderer;
- import org.apache.fop.render.RendererContext;
- import org.apache.fop.render.RendererContextConstants;
- import org.apache.fop.svg.SVGEventProducer;
- import org.apache.fop.svg.SVGUserAgent;
- import org.w3c.dom.Document;
-
- /**
- * Java2D XML handler for SVG (uses Apache Batik).
- * This handler handles XML for foreign objects when rendering to Java2D.
- * The properties from the Java2D renderer are subject to change.
- */
- public class Java2DSVGHandler extends AbstractGenericSVGHandler
- implements Java2DRendererContextConstants {
-
- /** logging instance */
- private static Log log = LogFactory.getLog(Java2DSVGHandler.class);
-
- /**
- * Create a new Java2D XML handler for use by the Java2D renderer and its subclasses.
- */
- public Java2DSVGHandler() {
- //nop
- }
-
- /**
- * Get the pdf information from the render context.
- *
- * @param context the renderer context
- * @return the pdf information retrieved from the context
- */
- public static Java2DInfo getJava2DInfo(RendererContext context) {
- Java2DInfo pdfi = new Java2DInfo();
- pdfi.state = (Java2DGraphicsState)context.getProperty(JAVA2D_STATE);
- pdfi.width = ((Integer)context.getProperty(WIDTH)).intValue();
- pdfi.height = ((Integer)context.getProperty(HEIGHT)).intValue();
- pdfi.currentXPosition = ((Integer)context.getProperty(XPOS)).intValue();
- pdfi.currentYPosition = ((Integer)context.getProperty(YPOS)).intValue();
- Map foreign = (Map)context.getProperty(RendererContextConstants.FOREIGN_ATTRIBUTES);
- if (foreign != null
- && BITMAP.equalsIgnoreCase((String)foreign.get(CONVERSION_MODE))) {
- pdfi.paintAsBitmap = true;
- }
- return pdfi;
- }
-
- /**
- * Java2D information structure for drawing the XML document.
- */
- public static class Java2DInfo {
- /** see Java2D_STATE */
- public Java2DGraphicsState state;
- /** see Java2D_WIDTH */
- public int width;
- /** see Java2D_HEIGHT */
- public int height;
- /** see Java2D_XPOS */
- public int currentXPosition;
- /** see Java2D_YPOS */
- public int currentYPosition;
- public boolean paintAsBitmap;
-
- /** {@inheritDoc} */
- public String toString() {
- return "Java2DInfo {"
- + "state = " + state + ", "
- + "width = " + width + ", "
- + "height = " + height + ", "
- + "currentXPosition = " + currentXPosition + ", "
- + "currentYPosition = " + currentYPosition + ", "
- + "paintAsBitmap = " + paintAsBitmap + "}";
- }
- }
-
- /** {@inheritDoc} */
- protected void renderSVGDocument(RendererContext context,
- Document doc) {
- Java2DInfo info = getJava2DInfo(context);
- if (log.isDebugEnabled()) {
- log.debug("renderSVGDocument(" + context + ", " + doc + ", " + info + ")");
- }
-
- // fallback paint as bitmap
- if (info.paintAsBitmap) {
- try {
- super.renderSVGDocument(context, doc);
- } catch (IOException ioe) {
- SVGEventProducer eventProducer = SVGEventProducer.Provider.get(
- context.getUserAgent().getEventBroadcaster());
- eventProducer.svgRenderingError(this, ioe, getDocumentURI(doc));
- }
- return;
- }
-
- int x = info.currentXPosition;
- int y = info.currentYPosition;
-
- SVGUserAgent ua = new SVGUserAgent(context.getUserAgent(), new AffineTransform());
-
- GVTBuilder builder = new GVTBuilder();
- BridgeContext ctx = new BridgeContext(ua);
-
- GraphicsNode root;
- try {
- root = builder.build(ctx, doc);
- } catch (Exception e) {
- SVGEventProducer eventProducer = SVGEventProducer.Provider.get(
- context.getUserAgent().getEventBroadcaster());
- eventProducer.svgNotBuilt(this, e, getDocumentURI(doc));
- 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 = info.width;
- float h = info.height;
-
- AffineTransform origTransform = info.state.getGraph().getTransform();
-
- // correct integer roundoff
- info.state.getGraph().translate(x / 1000f, y / 1000f);
-
- //SVGSVGElement svg = ((SVGDocument) doc).getRootElement();
- // Aspect ratio preserved by layout engine, not here
- AffineTransform at = AffineTransform.getScaleInstance(w / iw, h / ih);
- if (!at.isIdentity()) {
- info.state.getGraph().transform(at);
- }
-
- try {
- root.paint(info.state.getGraph());
- } catch (Exception e) {
- SVGEventProducer eventProducer = SVGEventProducer.Provider.get(
- context.getUserAgent().getEventBroadcaster());
- eventProducer.svgRenderingError(this, e, getDocumentURI(doc));
- }
-
- info.state.getGraph().setTransform(origTransform);
- }
-
- /** {@inheritDoc} */
- public boolean supportsRenderer(Renderer renderer) {
- return (renderer instanceof Java2DRenderer);
- }
-
- }
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