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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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;
// Java
import java.io.IOException;
import java.io.OutputStream;
// FOP
import org.apache.fop.fonts.type1.PFBData;
/**
* Special PDFStream for embedding Type 1 fonts.
*/
public class PDFT1Stream extends AbstractPDFStream {
private PFBData pfb;
/**
* @see org.apache.fop.pdf.AbstractPDFStream#getSizeHint()
*/
protected int getSizeHint() throws IOException {
if (this.pfb != null) {
return pfb.getLength();
} else {
return 0; //no hint available
}
}
/**
* Overload the base object method so we don't have to copy
* byte arrays around so much
* @see org.apache.fop.pdf.PDFObject#output(OutputStream)
*/
protected int output(java.io.OutputStream stream)
throws java.io.IOException {
if (pfb == null) {
throw new IllegalStateException("pfb must not be null at this point");
}
log.debug("Writing " + pfb.getLength() + " bytes of Type 1 font data");
int length = super.output(stream);
log.debug("Embedded Type1 font");
return length;
}
/**
* @see org.apache.fop.pdf.AbstractPDFStream#buildStreamDict(String)
*/
protected String buildStreamDict(String lengthEntry) {
final String filterEntry = getFilterList().buildFilterDictEntries();
return (getObjectID()
+ "<< /Length " + lengthEntry
+ " /Length1 " + pfb.getLength1()
+ " /Length2 " + pfb.getLength2()
+ " /Length3 " + pfb.getLength3()
+ "\n" + filterEntry
+ "\n>>\n");
}
/**
* @see org.apache.fop.pdf.PDFStream#outputRawStreamData(OutputStream)
*/
protected void outputRawStreamData(OutputStream out) throws IOException {
this.pfb.outputAllParts(out);
}
/**
* Used to set the PFBData object that represents the embeddable Type 1
* font.
* @param pfb The PFB file
* @throws IOException in case of an I/O problem
*/
public void setData(PFBData pfb) throws IOException {
this.pfb = pfb;
}
}
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