|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111 |
- /*
- * 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.Rectangle2D;
- import java.awt.image.ColorModel;
- 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.ImageRawPNG;
- import org.apache.xmlgraphics.ps.FormGenerator;
- import org.apache.xmlgraphics.ps.ImageEncoder;
- import org.apache.xmlgraphics.ps.ImageFormGenerator;
- import org.apache.xmlgraphics.ps.PSGenerator;
- import org.apache.xmlgraphics.ps.PSImageUtils;
-
- import org.apache.fop.render.RenderingContext;
-
- /**
- * Image handler implementation which handles raw (not decoded) PNG images for PostScript output.
- */
- public class PSImageHandlerRawPNG implements PSImageHandler {
-
- private static final ImageFlavor[] FLAVORS = new ImageFlavor[] {ImageFlavor.RAW_PNG};
-
- /** {@inheritDoc} */
- public void handleImage(RenderingContext context, Image image, Rectangle pos) throws IOException {
- PSRenderingContext psContext = (PSRenderingContext) context;
- PSGenerator gen = psContext.getGenerator();
- ImageRawPNG png = (ImageRawPNG) image;
-
- float x = (float) pos.getX() / 1000f;
- float y = (float) pos.getY() / 1000f;
- float w = (float) pos.getWidth() / 1000f;
- float h = (float) pos.getHeight() / 1000f;
- Rectangle2D targetRect = new Rectangle2D.Float(x, y, w, h);
-
- ImageEncoder encoder = new ImageEncoderPNG(png);
- ImageInfo info = image.getInfo();
- Dimension imgDim = info.getSize().getDimensionPx();
- String imgDescription = image.getClass().getName();
- ColorModel cm = png.getColorModel();
-
- PSImageUtils.writeImage(encoder, imgDim, imgDescription, targetRect, cm, gen);
- }
-
- /** {@inheritDoc} */
- public void generateForm(RenderingContext context, Image image, PSImageFormResource form)
- throws IOException {
- PSRenderingContext psContext = (PSRenderingContext) context;
- PSGenerator gen = psContext.getGenerator();
- ImageRawPNG png = (ImageRawPNG) image;
- ImageInfo info = image.getInfo();
- String imageDescription = info.getMimeType() + " " + info.getOriginalURI();
-
- ImageEncoder encoder = new ImageEncoderPNG(png);
- FormGenerator formGen = new ImageFormGenerator(form.getName(), imageDescription, info.getSize()
- .getDimensionPt(), info.getSize().getDimensionPx(), encoder, png.getColorSpace(),
- false);
- formGen.generate(gen);
- }
-
- /** {@inheritDoc} */
- public int getPriority() {
- return 200;
- }
-
- /** {@inheritDoc} */
- public Class<ImageRawPNG> getSupportedImageClass() {
- return ImageRawPNG.class;
- }
-
- /** {@inheritDoc} */
- public ImageFlavor[] getSupportedImageFlavors() {
- return FLAVORS;
- }
-
- /** {@inheritDoc} */
- public boolean isCompatible(RenderingContext targetContext, Image image) {
- if (targetContext instanceof PSRenderingContext) {
- PSRenderingContext psContext = (PSRenderingContext) targetContext;
- // The filters required for this implementation need PS level 2 or higher
- if (psContext.getGenerator().getPSLevel() >= 2) {
- return (image == null || image instanceof ImageRawPNG);
- }
- }
- return false;
- }
-
- }
|