| /* |
| * 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.ps; |
| |
| import java.awt.Rectangle; |
| import java.awt.geom.AffineTransform; |
| import java.io.IOException; |
| |
| import org.w3c.dom.Document; |
| |
| import org.apache.batik.bridge.BridgeContext; |
| import org.apache.batik.bridge.GVTBuilder; |
| import org.apache.batik.gvt.GraphicsNode; |
| |
| import org.apache.xmlgraphics.image.loader.Image; |
| import org.apache.xmlgraphics.image.loader.ImageFlavor; |
| import org.apache.xmlgraphics.image.loader.impl.ImageXMLDOM; |
| import org.apache.xmlgraphics.java2d.ps.PSGraphics2D; |
| import org.apache.xmlgraphics.ps.PSGenerator; |
| |
| import org.apache.fop.image.loader.batik.BatikImageFlavors; |
| import org.apache.fop.image.loader.batik.BatikUtil; |
| import org.apache.fop.render.ImageHandler; |
| import org.apache.fop.render.RenderingContext; |
| import org.apache.fop.svg.SVGEventProducer; |
| import org.apache.fop.svg.SVGUserAgent; |
| |
| /** |
| * Image handler implementation which handles SVG images for PostScript output. |
| */ |
| public class PSImageHandlerSVG implements ImageHandler { |
| |
| private static final ImageFlavor[] FLAVORS = new ImageFlavor[] { |
| BatikImageFlavors.SVG_DOM |
| }; |
| |
| /** {@inheritDoc} */ |
| public void handleImage(RenderingContext context, Image image, Rectangle pos) |
| throws IOException { |
| PSRenderingContext psContext = (PSRenderingContext)context; |
| PSGenerator gen = psContext.getGenerator(); |
| ImageXMLDOM imageSVG = (ImageXMLDOM)image; |
| |
| //Controls whether text painted by Batik is generated using text or path operations |
| boolean strokeText = false; |
| //TODO Configure text stroking |
| |
| SVGUserAgent ua |
| = new SVGUserAgent(context.getUserAgent(), new AffineTransform()); |
| |
| PSGraphics2D graphics = new PSGraphics2D(strokeText, gen); |
| graphics.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext()); |
| |
| BridgeContext ctx = new PSBridgeContext(ua, |
| (strokeText ? null : psContext.getFontInfo()), |
| context.getUserAgent().getImageManager(), |
| context.getUserAgent().getImageSessionContext()); |
| |
| //Cloning SVG DOM as Batik attaches non-thread-safe facilities (like the CSS engine) |
| //to it. |
| Document clonedDoc = BatikUtil.cloneSVGDocument(imageSVG.getDocument()); |
| |
| GraphicsNode root; |
| try { |
| GVTBuilder builder = new GVTBuilder(); |
| root = builder.build(ctx, clonedDoc); |
| } catch (Exception e) { |
| SVGEventProducer eventProducer = SVGEventProducer.Provider.get( |
| context.getUserAgent().getEventBroadcaster()); |
| eventProducer.svgNotBuilt(this, e, image.getInfo().getOriginalURI()); |
| 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 = pos.width / w; |
| float sy = pos.height / h; |
| |
| ctx = null; |
| |
| gen.commentln("%FOPBeginSVG"); |
| gen.saveGraphicsState(); |
| final boolean clip = false; |
| if (clip) { |
| /* |
| * Clip to the svg area. |
| * Note: To have the svg overlay (under) a text area then use |
| * an fo:block-container |
| */ |
| gen.writeln("newpath"); |
| gen.defineRect(pos.getMinX() / 1000f, pos.getMinY() / 1000f, |
| pos.width / 1000f, pos.height / 1000f); |
| gen.writeln("clip"); |
| } |
| |
| // transform so that the coordinates (0,0) is from the top left |
| // and positive is down and to the right. (0,0) is where the |
| // viewBox puts it. |
| gen.concatMatrix(sx, 0, 0, sy, pos.getMinX() / 1000f, pos.getMinY() / 1000f); |
| |
| AffineTransform transform = new AffineTransform(); |
| // scale to viewbox |
| transform.translate(pos.getMinX(), pos.getMinY()); |
| gen.getCurrentState().concatMatrix(transform); |
| try { |
| root.paint(graphics); |
| } catch (Exception e) { |
| SVGEventProducer eventProducer = SVGEventProducer.Provider.get( |
| context.getUserAgent().getEventBroadcaster()); |
| eventProducer.svgRenderingError(this, e, image.getInfo().getOriginalURI()); |
| } |
| |
| gen.restoreGraphicsState(); |
| gen.commentln("%FOPEndSVG"); |
| } |
| |
| /** {@inheritDoc} */ |
| public int getPriority() { |
| return 400; |
| } |
| |
| /** {@inheritDoc} */ |
| public Class getSupportedImageClass() { |
| return ImageXMLDOM.class; |
| } |
| |
| /** {@inheritDoc} */ |
| public ImageFlavor[] getSupportedImageFlavors() { |
| return FLAVORS; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean isCompatible(RenderingContext targetContext, Image image) { |
| if (targetContext instanceof PSRenderingContext) { |
| PSRenderingContext psContext = (PSRenderingContext)targetContext; |
| return !psContext.isCreateForms() |
| && (image == null || (image instanceof ImageXMLDOM |
| && image.getFlavor().isCompatible(BatikImageFlavors.SVG_DOM))); |
| } |
| return false; |
| } |
| |
| } |