| /* |
| * 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.Dimension; |
| import java.awt.Rectangle; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Dimension2D; |
| import java.awt.geom.Rectangle2D; |
| import java.io.IOException; |
| |
| import org.apache.xmlgraphics.image.loader.Image; |
| import org.apache.xmlgraphics.image.loader.ImageFlavor; |
| import org.apache.xmlgraphics.image.loader.ImageInfo; |
| import org.apache.xmlgraphics.image.loader.impl.ImageGraphics2D; |
| import org.apache.xmlgraphics.java2d.GeneralGraphics2DImagePainter; |
| import org.apache.xmlgraphics.java2d.Graphics2DImagePainter; |
| import org.apache.xmlgraphics.java2d.ps.PSGraphics2D; |
| import org.apache.xmlgraphics.ps.FormGenerator; |
| import org.apache.xmlgraphics.ps.PSGenerator; |
| import org.apache.xmlgraphics.ps.PSProcSets; |
| |
| import org.apache.fop.fonts.FontInfo; |
| import org.apache.fop.render.RenderingContext; |
| |
| /** |
| * Image handler implementation which handles vector graphics (Java2D) for PostScript output. |
| */ |
| public class PSImageHandlerGraphics2D implements PSImageHandler { |
| |
| private static final ImageFlavor[] FLAVORS = new ImageFlavor[] { |
| ImageFlavor.GRAPHICS2D |
| }; |
| |
| /** {@inheritDoc} */ |
| public void handleImage(RenderingContext context, Image image, Rectangle pos) |
| throws IOException { |
| PSRenderingContext psContext = (PSRenderingContext)context; |
| PSGenerator gen = psContext.getGenerator(); |
| ImageGraphics2D imageG2D = (ImageGraphics2D)image; |
| Graphics2DImagePainter painter = imageG2D.getGraphics2DImagePainter(); |
| |
| float fx = (float)pos.getX() / 1000f; |
| float fy = (float)pos.getY() / 1000f; |
| float fwidth = (float)pos.getWidth() / 1000f; |
| float fheight = (float)pos.getHeight() / 1000f; |
| |
| // get the 'width' and 'height' attributes of the SVG document |
| Dimension dim = painter.getImageSize(); |
| float imw = (float)dim.getWidth() / 1000f; |
| float imh = (float)dim.getHeight() / 1000f; |
| |
| float sx = fwidth / imw; |
| float sy = fheight / imh; |
| |
| gen.commentln("%FOPBeginGraphics2D"); |
| gen.saveGraphicsState(); |
| final boolean clip = false; |
| if (clip) { |
| // Clip to the image area. |
| gen.writeln("newpath"); |
| gen.defineRect(fx, fy, fwidth, fheight); |
| 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, fx, fy); |
| |
| final boolean textAsShapes = false; |
| PSGraphics2D graphics = (painter instanceof GeneralGraphics2DImagePainter) |
| ? (PSGraphics2D) ((GeneralGraphics2DImagePainter) painter).getGraphics(textAsShapes, gen) |
| : new PSGraphics2D(textAsShapes, gen); |
| graphics.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext()); |
| AffineTransform transform = new AffineTransform(); |
| // scale to viewbox |
| transform.translate(fx, fy); |
| gen.getCurrentState().concatMatrix(transform); |
| Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, imw, imh); |
| if (painter instanceof GeneralGraphics2DImagePainter) { |
| PSFontUtils.addFallbackFonts(psContext.getFontInfo(), (GeneralGraphics2DImagePainter) painter); |
| } |
| try { |
| painter.paint(graphics, area); |
| } finally { |
| gen.restoreGraphicsState(); |
| gen.commentln("%FOPEndGraphics2D"); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public void generateForm(RenderingContext context, Image image, final PSImageFormResource form) |
| throws IOException { |
| PSRenderingContext psContext = (PSRenderingContext)context; |
| PSGenerator gen = psContext.getGenerator(); |
| final ImageGraphics2D imageG2D = (ImageGraphics2D)image; |
| ImageInfo info = image.getInfo(); |
| |
| FormGenerator formGen = buildFormGenerator(gen.getPSLevel(), form, info, imageG2D, psContext.getFontInfo()); |
| formGen.generate(gen); |
| } |
| /** {@inheritDoc} */ |
| public int getPriority() { |
| return 200; |
| } |
| |
| /** {@inheritDoc} */ |
| public Class getSupportedImageClass() { |
| return ImageGraphics2D.class; |
| } |
| |
| /** {@inheritDoc} */ |
| public ImageFlavor[] getSupportedImageFlavors() { |
| return FLAVORS; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean isCompatible(RenderingContext targetContext, Image image) { |
| if (targetContext instanceof PSRenderingContext) { |
| return (image == null || image instanceof ImageGraphics2D); |
| } |
| return false; |
| } |
| |
| private FormGenerator buildFormGenerator(int psLanguageLevel, final PSImageFormResource form, final ImageInfo info, |
| final ImageGraphics2D imageG2D, final FontInfo fontInfo) { |
| String imageDescription = info.getMimeType() + " " + info.getOriginalURI(); |
| final Dimension2D dimensionsPt = info.getSize().getDimensionPt(); |
| final Dimension2D dimensionsMpt = info.getSize().getDimensionMpt(); |
| FormGenerator formGen; |
| |
| if (psLanguageLevel <= 2) { |
| formGen = new EPSFormGenerator(form.getName(), imageDescription, dimensionsPt) { |
| |
| @Override |
| void doGeneratePaintProc(PSGenerator gen) throws IOException { |
| paintImageG2D(imageG2D, dimensionsMpt, gen, fontInfo); |
| } |
| }; |
| } else { |
| formGen = new EPSFormGenerator(form.getName(), imageDescription, dimensionsPt) { |
| |
| @Override |
| protected void generateAdditionalDataStream(PSGenerator gen) throws IOException { |
| gen.writeln("/" + form.getName() + ":Data currentfile <<"); |
| gen.writeln(" /Filter /SubFileDecode"); |
| gen.writeln(" /DecodeParms << /EODCount 0 /EODString (%FOPEndOfData) >>"); |
| gen.writeln(">> /ReusableStreamDecode filter"); |
| try { |
| paintImageG2D(imageG2D, dimensionsMpt, gen, fontInfo); |
| } finally { |
| gen.writeln("%FOPEndOfData"); |
| gen.writeln("def"); |
| } |
| } |
| |
| @Override |
| void doGeneratePaintProc(PSGenerator gen) throws IOException { |
| gen.writeln(form.getName() + ":Data 0 setfileposition"); |
| gen.writeln(form.getName() + ":Data cvx exec"); |
| } |
| }; |
| } |
| return formGen; |
| } |
| |
| private abstract static class EPSFormGenerator extends FormGenerator { |
| |
| EPSFormGenerator(String formName, String title, Dimension2D dimensions) { |
| super(formName, title, dimensions); |
| } |
| |
| protected void paintImageG2D(final ImageGraphics2D imageG2D, Dimension2D dimensionsMpt, |
| PSGenerator gen, FontInfo fontInfo) throws IOException { |
| PSGraphics2DAdapter adapter = new PSGraphics2DAdapter(gen, false, fontInfo); |
| adapter.paintImage(imageG2D.getGraphics2DImagePainter(), |
| null, |
| 0, 0, |
| (int) Math.round(dimensionsMpt.getWidth()), |
| (int) Math.round(dimensionsMpt.getHeight())); |
| } |
| |
| @Override |
| protected final void generatePaintProc(PSGenerator gen) throws IOException { |
| gen.getResourceTracker().notifyResourceUsageOnPage( |
| PSProcSets.EPS_PROCSET); |
| gen.writeln("BeginEPSF"); |
| doGeneratePaintProc(gen); |
| gen.writeln("EndEPSF"); |
| } |
| |
| abstract void doGeneratePaintProc(PSGenerator gen) throws IOException; |
| } |
| } |