org.apache.fop.pdf.PDFICCStream Maven / Gradle / Ivy
/*
* 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: PDFICCStream.java 1305467 2012-03-26 17:39:20Z vhennebert $ */
package org.apache.fop.pdf;
import java.awt.color.ICC_Profile;
import java.io.IOException;
import java.io.OutputStream;
/**
* Special PDFStream for ICC profiles (color profiles).
*/
public class PDFICCStream extends PDFStream {
private ICC_Profile cp;
private PDFDeviceColorSpace pdfColorSpace;
/**
* @see org.apache.fop.pdf.PDFObject#PDFObject()
*/
public PDFICCStream() {
super();
cp = null;
}
/**
* Sets the color space to encode in PDF.
* @param icc the ICC profile
* @param alt the PDF color space
*/
public void setColorSpace(ICC_Profile icc, PDFDeviceColorSpace alt) {
this.cp = icc;
pdfColorSpace = alt;
}
/**
* Returns the associated ICC profile. Note that this will return null once the
* ICC stream has been written to the PDF file.
* @return the ICC profile (or null if the stream has already been written)
*/
public ICC_Profile getICCProfile() {
return this.cp;
}
/**
* overload the base object method so we don't have to copy
* byte arrays around so much
* {@inheritDoc}
*/
@Override
public int output(java.io.OutputStream stream)
throws java.io.IOException {
int length = super.output(stream);
this.cp = null; //Free ICC stream when it's not used anymore
return length;
}
/** {@inheritDoc} */
@Override
protected void outputRawStreamData(OutputStream out) throws IOException {
cp.write(out);
}
/** {@inheritDoc} */
@Override
protected void populateStreamDict(Object lengthEntry) {
put("N", cp.getNumComponents());
if (pdfColorSpace != null) {
put("Alternate", new PDFName(pdfColorSpace.getName()));
}
super.populateStreamDict(lengthEntry);
}
}