http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
/*
 * 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: PDFTTFStream.java 1305467 2012-03-26 17:39:20Z vhennebert $ */

package org.apache.fop.pdf;

import java.io.IOException;
import java.io.OutputStream;


Special PDFStream for embeddable TrueType fonts.

/**
 * Special PDFStream for embeddable TrueType fonts.
 */
public class PDFTTFStream extends AbstractPDFFontStream {

    private int origLength;
    private byte[] ttfData;

    
Main constructor

Params:
  • len – original length
/**
     * Main constructor
     * @param len original length
     */
    public PDFTTFStream(int len) {
        super();
        origLength = len;
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected int getSizeHint() throws IOException {
        if (this.ttfData != null) {
            return ttfData.length;
        } else {
            return 0; //no hint available
        }
    }

    
Overload the base object method so we don't have to copy
byte arrays around so much
{@inheritDoc}

/**
     * Overload the base object method so we don't have to copy
     * byte arrays around so much
     * {@inheritDoc}
     */
    public int output(java.io.OutputStream stream)
            throws java.io.IOException {
        if (log.isDebugEnabled()) {
            log.debug("Writing " + origLength + " bytes of TTF font data");
        }

        int length = super.output(stream);
        log.debug("Embedded TrueType/OpenType font");
        return length;
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected void outputRawStreamData(OutputStream out) throws IOException {
        out.write(this.ttfData);
    }

    
{@inheritDoc} 
/** {@inheritDoc} */
    protected void populateStreamDict(Object lengthEntry) {
        put("Length1", origLength);
        super.populateStreamDict(lengthEntry);
    }

    
Sets the TrueType font data.

Params:
  • data – the font payload
  • size – size of the payload
Throws:
/**
     * Sets the TrueType font data.
     * @param data the font payload
     * @param size size of the payload
     * @throws IOException in case of an I/O problem
     */
    public void setData(byte[] data, int size) throws IOException {
        this.ttfData = new byte[size];
        System.arraycopy(data, 0, this.ttfData, 0, size);
    }

}