From 6025b6016517c6d898d8957d1d7e03ba71431912 Mon Sep 17 00:00:00 2001 From: tknall Date: Fri, 1 Dec 2006 12:20:24 +0000 Subject: Initial import of release 2.2. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../com/lowagie/text/pdf/PdfIndirectObject.java | 170 +++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 src/main/java/com/lowagie/text/pdf/PdfIndirectObject.java (limited to 'src/main/java/com/lowagie/text/pdf/PdfIndirectObject.java') diff --git a/src/main/java/com/lowagie/text/pdf/PdfIndirectObject.java b/src/main/java/com/lowagie/text/pdf/PdfIndirectObject.java new file mode 100644 index 0000000..81ef485 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfIndirectObject.java @@ -0,0 +1,170 @@ +/* + * $Id: PdfIndirectObject.java,v 1.60 2005/05/04 14:31:40 blowagie Exp $ + * $Name: $ + * + * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie + * + * The contents of this file are subject to the Mozilla Public License Version 1.1 + * (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.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the License. + * + * The Original Code is 'iText, a free JAVA-PDF library'. + * + * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by + * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie. + * All Rights Reserved. + * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer + * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved. + * + * Contributor(s): all the names of the contributors are added in the source code + * where applicable. + * + * Alternatively, the contents of this file may be used under the terms of the + * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the + * provisions of LGPL are applicable instead of those above. If you wish to + * allow use of your version of this file only under the terms of the LGPL + * License and not to allow others to use your version of this file under + * the MPL, indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by the LGPL. + * If you do not delete the provisions above, a recipient may use your version + * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the MPL as stated above or under the terms of the GNU + * Library General Public License as published by the Free Software Foundation; + * either version 2 of the License, or any later version. + * + * This library is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more + * details. + * + * If you didn't download this code from the following link, you should check if + * you aren't using an obsolete version: + * http://www.lowagie.com/iText/ + */ + +package com.lowagie.text.pdf; + +import java.io.IOException; +import java.io.OutputStream; + +import com.lowagie.text.DocWriter; + +/** + * PdfIndirectObject is the Pdf indirect object. + *

+ * An indirect object is an object that has been labeled so that it can be referenced by + * other objects. Any type of PdfObject may be labeled as an indirect object.
+ * An indirect object consists of an object identifier, a direct object, and the endobj + * keyword. The object identifier consists of an integer object number, an integer + * generation number, and the obj keyword.
+ * This object is described in the 'Portable Document Format Reference Manual version 1.3' + * section 4.10 (page 53). + * + * @see PdfObject + * @see PdfIndirectReference + */ + +public class PdfIndirectObject { + + // membervariables + +/** The object number */ + protected int number; + +/** the generation number */ + protected int generation = 0; + + static final byte STARTOBJ[] = DocWriter.getISOBytes(" obj"); + static final byte ENDOBJ[] = DocWriter.getISOBytes("\nendobj\n"); + static final int SIZEOBJ = STARTOBJ.length + ENDOBJ.length; + PdfObject object; + PdfWriter writer; + + // constructors + +/** + * Constructs a PdfIndirectObject. + * + * @param number the object number + * @param object the direct object + */ + + PdfIndirectObject(int number, PdfObject object, PdfWriter writer) { + this(number, 0, object, writer); + } + + PdfIndirectObject(PdfIndirectReference ref, PdfObject object, PdfWriter writer) { + this(ref.getNumber(),ref.getGeneration(),object,writer); + } +/** + * Constructs a PdfIndirectObject. + * + * @param number the object number + * @param generation the generation number + * @param object the direct object + */ + + PdfIndirectObject(int number, int generation, PdfObject object, PdfWriter writer) { + this.writer = writer; + this.number = number; + this.generation = generation; + this.object = object; + PdfEncryption crypto = null; + if (writer != null) + crypto = writer.getEncryption(); + if (crypto != null) { + crypto.setHashKey(number, generation); + } + } + + // methods + +/** + * Return the length of this PdfIndirectObject. + * + * @return the length of the PDF-representation of this indirect object. + */ + +// public int length() { +// if (isStream) +// return bytes.size() + SIZEOBJ + stream.getStreamLength(writer); +// else +// return bytes.size(); +// } + + +/** + * Returns a PdfIndirectReference to this PdfIndirectObject. + * + * @return a PdfIndirectReference + */ + + public PdfIndirectReference getIndirectReference() { + return new PdfIndirectReference(object.type(), number, generation); + } + +/** + * Writes eficiently to a stream + * + * @param os the stream to write to + * @throws IOException on write error + */ + void writeTo(OutputStream os) throws IOException + { + os.write(DocWriter.getISOBytes(String.valueOf(number))); + os.write(' '); + os.write(DocWriter.getISOBytes(String.valueOf(generation))); + os.write(STARTOBJ); + int type = object.type(); + if (type != PdfObject.ARRAY && type != PdfObject.DICTIONARY && type != PdfObject.NAME && type != PdfObject.STRING) + os.write(' '); + object.toPdf(writer, os); + os.write(ENDOBJ); + } +} -- cgit v1.2.3