001/*
002 * $Id: PRIndirectReference.java 4784 2011-03-15 08:33:00Z blowagie $
003 *
004 * This file is part of the iText (R) project.
005 * Copyright (c) 1998-2011 1T3XT BVBA
006 * Authors: Bruno Lowagie, Paulo Soares, et al.
007 *
008 * This program is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU Affero General Public License version 3
010 * as published by the Free Software Foundation with the addition of the
011 * following permission added to Section 15 as permitted in Section 7(a):
012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
014 *
015 * This program is distributed in the hope that it will be useful, but
016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
017 * or FITNESS FOR A PARTICULAR PURPOSE.
018 * See the GNU Affero General Public License for more details.
019 * You should have received a copy of the GNU Affero General Public License
020 * along with this program; if not, see http://www.gnu.org/licenses or write to
021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
022 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
023 * http://itextpdf.com/terms-of-use/
024 *
025 * The interactive user interfaces in modified source and object code versions
026 * of this program must display Appropriate Legal Notices, as required under
027 * Section 5 of the GNU Affero General Public License.
028 *
029 * In accordance with Section 7(b) of the GNU Affero General Public License,
030 * a covered work must retain the producer line in every PDF that is created
031 * or manipulated using iText.
032 *
033 * You can be released from the requirements of the license by purchasing
034 * a commercial license. Buying such a license is mandatory as soon as you
035 * develop commercial activities involving the iText software without
036 * disclosing the source code of your own applications.
037 * These activities include: offering paid services to customers as an ASP,
038 * serving PDFs on the fly in a web application, shipping iText with a closed
039 * source product.
040 *
041 * For more information, please contact iText Software Corp. at this
042 * address: sales@itextpdf.com
043 */
044package com.itextpdf.text.pdf;
045import java.io.IOException;
046import java.io.OutputStream;
047
048public class PRIndirectReference extends PdfIndirectReference {
049    
050    protected PdfReader reader;
051    // membervariables
052    
053    // constructors
054    
055/**
056 * Constructs a <CODE>PdfIndirectReference</CODE>.
057 *
058 * @param               reader                  a <CODE>PdfReader</CODE>
059 * @param               number                  the object number.
060 * @param               generation              the generation number.
061 */
062    
063    PRIndirectReference(PdfReader reader, int number, int generation) {
064        type = INDIRECT;
065        this.number = number;
066        this.generation = generation;
067        this.reader = reader;
068    }
069    
070/**
071 * Constructs a <CODE>PdfIndirectReference</CODE>.
072 *
073 * @param               reader                  a <CODE>PdfReader</CODE>
074 * @param               number                  the object number.
075 */
076    
077    PRIndirectReference(PdfReader reader, int number) {
078        this(reader, number, 0);
079    }
080    
081    // methods
082    
083    public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
084        int n = writer.getNewObjectNumber(reader, number, generation);
085        os.write(PdfEncodings.convertToBytes(new StringBuffer().append(n).append(" 0 R").toString(), null));
086    }
087
088    public PdfReader getReader() {
089        return reader;
090    }
091    
092    public void setNumber(int number, int generation) {
093        this.number = number;
094        this.generation = generation;
095    }
096}