| /* |
| * 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); |
| } |
| } |