/*
* 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: PDFImageHandlerGraphics2D.java 830293 2009-10-27 19:07:52Z vhennebert $ */
package org.apache.fop.render.pdf;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.geom.AffineTransform;
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.impl.ImageGraphics2D;
import org.apache.fop.pdf.PDFXObject;
import org.apache.fop.render.AbstractImageHandlerGraphics2D;
import org.apache.fop.render.RendererContext;
import org.apache.fop.render.RenderingContext;
import org.apache.fop.render.pdf.PDFLogicalStructureHandler.MarkedContentInfo;
import org.apache.fop.svg.PDFGraphics2D;
/**
* PDFImageHandler implementation which handles Graphics2D images.
*/
public class PDFImageHandlerGraphics2D extends AbstractImageHandlerGraphics2D
implements PDFImageHandler {
private static final ImageFlavor[] FLAVORS = new ImageFlavor[] {
ImageFlavor.GRAPHICS2D,
};
/** {@inheritDoc} */
public PDFXObject generateImage(RendererContext context, Image image,
Point origin, Rectangle pos)
throws IOException {
PDFRenderer renderer = (PDFRenderer)context.getRenderer();
/*
ImageGraphics2D imageG2D = (ImageGraphics2D)image;
renderer.getGraphics2DAdapter().paintImage(imageG2D.getGraphics2DImagePainter(),
context, origin.x + pos.x, origin.y + pos.y, pos.width, pos.height);
*/
PDFRenderingContext pdfContext = new PDFRenderingContext(
context.getUserAgent(),
renderer.getGenerator(),
renderer.currentPage,
renderer.getFontInfo());
Rectangle effPos = new Rectangle(origin.x + pos.x, origin.y + pos.y, pos.width, pos.height);
if (context.getUserAgent().isAccessibilityEnabled()) {
pdfContext.setMarkedContentInfo(renderer.addCurrentImageToStructureTree());
}
handleImage(pdfContext, image, effPos);
return null;
}
/** {@inheritDoc} */
public void handleImage(RenderingContext context, Image image, Rectangle pos)
throws IOException {
PDFRenderingContext pdfContext = (PDFRenderingContext)context;
PDFContentGenerator generator = pdfContext.getGenerator();
ImageGraphics2D imageG2D = (ImageGraphics2D)image;
float fwidth = pos.width / 1000f;
float fheight = pos.height / 1000f;
float fx = pos.x / 1000f;
float fy = pos.y / 1000f;
// get the 'width' and 'height' attributes of the SVG document
Dimension dim = image.getInfo().getSize().getDimensionMpt();
float imw = (float)dim.getWidth() / 1000f;
float imh = (float)dim.getHeight() / 1000f;
float sx = fwidth / (float)imw;
float sy = fheight / (float)imh;
generator.comment("G2D start");
boolean accessibilityEnabled = context.getUserAgent().isAccessibilityEnabled();
if (accessibilityEnabled) {
MarkedContentInfo mci = pdfContext.getMarkedContentInfo();
generator.saveGraphicsState(mci.tag, mci.mcid);
} else {
generator.saveGraphicsState();
}
generator.updateColor(Color.black, false, null);
generator.updateColor(Color.black, true, null);
//TODO Clip to the image area.
// 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.
generator.add(sx + " 0 0 " + sy + " " + fx + " " + fy + " cm\n");
final boolean textAsShapes = false;
PDFGraphics2D graphics = new PDFGraphics2D(textAsShapes,
pdfContext.getFontInfo(), generator.getDocument(),
generator.getResourceContext(), pdfContext.getPage().referencePDF(),
"", 0.0f);
graphics.setGraphicContext(new org.apache.xmlgraphics.java2d.GraphicContext());
AffineTransform transform = new AffineTransform();
transform.translate(fx, fy);
generator.getState().concatenate(transform);
graphics.setPaintingState(generator.getState());
graphics.setOutputStream(generator.getOutputStream());
Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, imw, imh);
imageG2D.getGraphics2DImagePainter().paint(graphics, area);
generator.add(graphics.getString());
if (accessibilityEnabled) {
generator.restoreGraphicsStateAccess();
} else {
generator.restoreGraphicsState();
}
generator.comment("G2D end");
}
/** {@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) {
return (image == null || image instanceof ImageGraphics2D)
&& targetContext instanceof PDFRenderingContext;
}
}