/* * 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.pdf; import java.awt.color.ColorSpace; import java.awt.color.ICC_Profile; import java.io.IOException; import java.io.InputStream; import java.util.Set; import org.apache.commons.io.IOUtils; import org.apache.xmlgraphics.java2d.color.profile.ColorProfileUtil; /** * Represents an ICCBased color space in PDF. */ public class PDFICCBasedColorSpace extends PDFObject implements PDFColorSpace { private PDFICCStream iccStream; private String explicitName; private int numComponents; /** * Constructs a the ICCBased color space with an explicit name (ex. "DefaultRGB"). * @param explicitName an explicit name or null if a name should be generated * @param iccStream the ICC stream to associate with this color space */ public PDFICCBasedColorSpace(String explicitName, PDFICCStream iccStream) { this.explicitName = explicitName; this.iccStream = iccStream; this.numComponents = iccStream.getICCProfile().getNumComponents(); } /** * Constructs a the ICCBased color space. * @param iccStream the ICC stream to associate with this color space */ public PDFICCBasedColorSpace(PDFICCStream iccStream) { this(null, iccStream); } /** @return the ICC stream associated with this color space */ public PDFICCStream getICCStream() { return this.iccStream; } /** {@inheritDoc} */ public int getNumComponents() { return this.numComponents; } /** {@inheritDoc} */ public String getName() { if (explicitName != null) { return explicitName; } else { return "ICC" + iccStream.getObjectNumber(); } } /** {@inheritDoc} */ public boolean isDeviceColorSpace() { return false; } /** {@inheritDoc} */ public boolean isRGBColorSpace() { return getNumComponents() == 3; } /** {@inheritDoc} */ public boolean isCMYKColorSpace() { return getNumComponents() == 4; } /** {@inheritDoc} */ public boolean isGrayColorSpace() { return getNumComponents() == 1; } /** {@inheritDoc} */ @Override protected String toPDFString() { StringBuffer sb = new StringBuffer(64); sb.append("[/ICCBased ").append(getICCStream().referencePDF()).append("]"); return sb.toString(); } /** * Sets sRGB as the DefaultRGB color space in the PDF document. * @param pdfDoc the PDF document * @return the newly installed color space object */ public static PDFICCBasedColorSpace setupsRGBAsDefaultRGBColorSpace(PDFDocument pdfDoc) { PDFICCStream sRGBProfile = setupsRGBColorProfile(pdfDoc); //Map sRGB as default RGB profile for DeviceRGB return pdfDoc.getFactory().makeICCBasedColorSpace(null, "DefaultRGB", sRGBProfile); } /** * Installs the sRGB color space in the PDF document. * @param pdfDoc the PDF document * @return the newly installed color space object */ public static PDFICCBasedColorSpace setupsRGBColorSpace(PDFDocument pdfDoc) { PDFICCStream sRGBProfile = setupsRGBColorProfile(pdfDoc); //Map sRGB as default RGB profile for DeviceRGB return pdfDoc.getFactory().makeICCBasedColorSpace(null, null, sRGBProfile); } /** * Sets up the sRGB color profile in the PDF document. It does so by trying to * install a very small ICC profile (~4KB) instead of the very big one (~140KB) * the Sun JVM uses. * @param pdfDoc the PDF document * @return the ICC stream with the sRGB profile */ public static PDFICCStream setupsRGBColorProfile(PDFDocument pdfDoc) { ICC_Profile profile; PDFICCStream sRGBProfile = pdfDoc.getFactory().makePDFICCStream(); InputStream in = PDFDocument.class.getResourceAsStream("sRGB.icc"); if (in != null) { try { profile = ColorProfileUtil.getICC_Profile(in); } catch (IOException ioe) { throw new RuntimeException( "Unexpected IOException loading the sRGB profile: " + ioe.getMessage()); } finally { IOUtils.closeQuietly(in); } } else { // Fallback: Use the sRGB profile from the JRE (about 140KB) profile = ColorProfileUtil.getICC_Profile(ColorSpace.CS_sRGB); } sRGBProfile.setColorSpace(profile, null); return sRGBProfile; } @Override public void getChildren(Set<PDFObject> children) { super.getChildren(children); children.add(iccStream); iccStream.getChildren(children); } }