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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.pdf;
- import java.awt.color.ColorSpace;
- import java.awt.color.ICC_ColorSpace;
- import java.awt.color.ICC_Profile;
- import java.awt.image.ColorModel;
- import java.awt.image.IndexColorModel;
- import java.awt.image.Raster;
- import java.awt.image.RenderedImage;
- import java.io.IOException;
- import java.io.OutputStream;
-
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.xmlgraphics.image.GraphicsUtil;
- import org.apache.xmlgraphics.image.loader.impl.ImageRendered;
- import org.apache.xmlgraphics.ps.ImageEncodingHelper;
-
- import org.apache.fop.pdf.AlphaRasterImage;
- import org.apache.fop.pdf.PDFColor;
- import org.apache.fop.pdf.PDFDeviceColorSpace;
- import org.apache.fop.pdf.PDFDictionary;
- import org.apache.fop.pdf.PDFDocument;
- import org.apache.fop.pdf.PDFFilter;
- import org.apache.fop.pdf.PDFFilterList;
- import org.apache.fop.pdf.PDFReference;
-
- /**
- * PDFImage implementation for the PDF renderer which handles RenderedImages.
- */
- public class ImageRenderedAdapter extends AbstractImageAdapter {
-
- /** logging instance */
- private static Log log = LogFactory.getLog(ImageRenderedAdapter.class);
-
- private ImageEncodingHelper encodingHelper;
-
- private PDFFilter pdfFilter;
- private String maskRef;
- private PDFReference softMask;
-
- /**
- * Creates a new PDFImage from an Image instance.
- * @param image the image
- * @param key XObject key
- */
- public ImageRenderedAdapter(ImageRendered image, String key) {
- super(image, key);
- this.encodingHelper = new ImageEncodingHelper(image.getRenderedImage());
- }
-
- /**
- * Returns the ImageRendered instance for this adapter.
- * @return the ImageRendered instance
- */
- public ImageRendered getImage() {
- return ((ImageRendered)this.image);
- }
-
- /** {@inheritDoc} */
- @Override
- public int getWidth() {
- RenderedImage ri = getImage().getRenderedImage();
- return ri.getWidth();
- }
-
- /** {@inheritDoc} */
- @Override
- public int getHeight() {
- RenderedImage ri = getImage().getRenderedImage();
- return ri.getHeight();
- }
-
- private ColorModel getEffectiveColorModel() {
- return encodingHelper.getEncodedColorModel();
- }
-
- /** {@inheritDoc} */
- @Override
- protected ColorSpace getImageColorSpace() {
- return getEffectiveColorModel().getColorSpace();
- }
-
- /** {@inheritDoc} */
- @Override
- protected ICC_Profile getEffectiveICCProfile() {
- ColorSpace cs = getImageColorSpace();
- if (cs instanceof ICC_ColorSpace) {
- ICC_ColorSpace iccSpace = (ICC_ColorSpace)cs;
- return iccSpace.getProfile();
- } else {
- return null;
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void setup(PDFDocument doc) {
- RenderedImage ri = getImage().getRenderedImage();
-
- super.setup(doc);
-
- //Handle transparency mask if applicable
- ColorModel orgcm = ri.getColorModel();
- if (orgcm.hasAlpha() && orgcm.getTransparency() == ColorModel.TRANSLUCENT) {
- doc.getProfile().verifyTransparencyAllowed(image.getInfo().getOriginalURI());
- //TODO Implement code to combine image with background color if transparency is not
- //allowed (need BufferedImage support for that)
-
- Raster raster = GraphicsUtil.getAlphaRaster(ri);
- if (raster != null) {
- AlphaRasterImage alphaImage = new AlphaRasterImage("Mask:" + getKey(), raster);
- this.softMask = doc.addImage(null, alphaImage).makeReference();
- }
- }
- }
-
- /** {@inheritDoc} */
- public PDFDeviceColorSpace getColorSpace() {
- // DeviceGray, DeviceRGB, or DeviceCMYK
- return toPDFColorSpace(getEffectiveColorModel().getColorSpace());
- }
-
- /** {@inheritDoc} */
- public int getBitsPerComponent() {
- ColorModel cm = getEffectiveColorModel();
- if (cm instanceof IndexColorModel) {
- IndexColorModel icm = (IndexColorModel)cm;
- return icm.getComponentSize(0);
- } else {
- return cm.getComponentSize(0);
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean isTransparent() {
- ColorModel cm = getEffectiveColorModel();
- if (cm instanceof IndexColorModel) {
- if (cm.getTransparency() == IndexColorModel.TRANSLUCENT) {
- return true;
- }
- }
- return (getImage().getTransparentColor() != null);
- }
-
- /** {@inheritDoc} */
- @Override
- public PDFColor getTransparentColor() {
- ColorModel cm = getEffectiveColorModel();
- if (cm instanceof IndexColorModel) {
- IndexColorModel icm = (IndexColorModel)cm;
- if (cm.getTransparency() == IndexColorModel.TRANSLUCENT) {
- int transPixel = icm.getTransparentPixel();
- return new PDFColor(
- icm.getRed(transPixel),
- icm.getGreen(transPixel),
- icm.getBlue(transPixel));
- }
- }
- return new PDFColor(getImage().getTransparentColor());
- }
-
- /** {@inheritDoc} */
- @Override
- public String getMask() {
- return maskRef;
- }
-
- /** {@inheritDoc} */
- @Override
- public PDFReference getSoftMaskReference() {
- return softMask;
- }
-
- /** {@inheritDoc} */
- public PDFFilter getPDFFilter() {
- return pdfFilter;
- }
-
- /** {@inheritDoc} */
- public void outputContents(OutputStream out) throws IOException {
- long start = System.currentTimeMillis();
- encodingHelper.setBWInvert(true);
- encodingHelper.encode(out);
- long duration = System.currentTimeMillis() - start;
- if (log.isDebugEnabled()) {
- log.debug("Image encoding took " + duration + "ms");
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public void populateXObjectDictionary(PDFDictionary dict) {
- ColorModel cm = getEffectiveColorModel();
- if (cm instanceof IndexColorModel) {
- IndexColorModel icm = (IndexColorModel) cm;
- super.populateXObjectDictionaryForIndexColorModel(dict, icm);
- }
- }
-
- /** {@inheritDoc} */
- public String getFilterHint() {
- return PDFFilterList.IMAGE_FILTER;
- }
-
- }
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