using System; using System.IO; using System.Collections; using iTextSharp.text.pdf; using iTextSharp.text.xml.simpleparser; /* * $Id: XmpWriter.cs,v 1.10 2008/05/13 11:26:16 psoares33 Exp $ * * * Copyright 2005 by 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) 1999-2005 by Bruno Lowagie. * All Rights Reserved. * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer * are Copyright (C) 2000-2005 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/ */ namespace iTextSharp.text.xml.xmp { /** * With this class you can create an Xmp Stream that can be used for adding * Metadata to a PDF Dictionary. Remark that this class doesn't cover the * complete XMP specification. */ public class XmpWriter { /** A possible charset for the XMP. */ public const String UTF8 = "UTF-8"; /** A possible charset for the XMP. */ public const String UTF16 = "UTF-16"; /** A possible charset for the XMP. */ public const String UTF16BE = "UTF-16BE"; /** A possible charset for the XMP. */ public const String UTF16LE = "UTF-16LE"; /** String used to fill the extra space. */ public const String EXTRASPACE = " \n"; /** You can add some extra space in the XMP packet; 1 unit in this variable represents 100 spaces and a newline. */ protected int extraSpace; /** The writer to which you can write bytes for the XMP stream. */ protected StreamWriter writer; /** The about string that goes into the rdf:Description tags. */ protected String about; /** The end attribute. */ protected char end = 'w'; /** * Creates an XmpWriter. * @param os * @param utfEncoding * @param extraSpace * @throws IOException */ public XmpWriter(Stream os, string utfEncoding, int extraSpace) { this.extraSpace = extraSpace; writer = new StreamWriter(os, new EncodingNoPreamble(IanaEncodings.GetEncodingEncoding(utfEncoding))); writer.Write("\n"); writer.Write("\n"); writer.Write("\n"); about = ""; } /** * Creates an XmpWriter. * @param os * @throws IOException */ public XmpWriter(Stream os) : this(os, UTF8, 20) { } /** Sets the XMP to read-only */ public void SetReadOnly() { end = 'r'; } /** * @param about The about to set. */ public String About { set { this.about = value; } } /** * Adds an rdf:Description. * @param xmlns * @param content * @throws IOException */ public void AddRdfDescription(String xmlns, String content) { writer.Write(""); writer.Write(content); writer.Write("\n"); } /** * Adds an rdf:Description. * @param s * @throws IOException */ public void AddRdfDescription(XmpSchema s) { writer.Write(""); writer.Write(s.ToString()); writer.Write("\n"); } /** * Flushes and closes the XmpWriter. * @throws IOException */ public void Close() { writer.Write(""); writer.Write("\n"); for (int i = 0; i < extraSpace; i++) { writer.Write(EXTRASPACE); } writer.Write(""); writer.Flush(); writer.Close(); } /** * @param os * @param info * @throws IOException */ public XmpWriter(Stream os, PdfDictionary info, int PdfXConformance) : this(os) { if (info != null) { DublinCoreSchema dc = new DublinCoreSchema(); PdfSchema p = new PdfSchema(); XmpBasicSchema basic = new XmpBasicSchema(); PdfObject obj; foreach (PdfName key in info.Keys) { obj = info.Get(key); if (obj == null) continue; if (PdfName.TITLE.Equals(key)) { dc.AddTitle(((PdfString)obj).ToUnicodeString()); } if (PdfName.AUTHOR.Equals(key)) { dc.AddAuthor(((PdfString)obj).ToUnicodeString()); } if (PdfName.SUBJECT.Equals(key)) { dc.AddSubject(((PdfString)obj).ToUnicodeString()); dc.AddDescription(((PdfString)obj).ToUnicodeString()); } if (PdfName.KEYWORDS.Equals(key)) { p.AddKeywords(((PdfString)obj).ToUnicodeString()); } if (PdfName.CREATOR.Equals(key)) { basic.AddCreatorTool(((PdfString)obj).ToUnicodeString()); } if (PdfName.PRODUCER.Equals(key)) { p.AddProducer(((PdfString)obj).ToUnicodeString()); } if (PdfName.CREATIONDATE.Equals(key)) { basic.AddCreateDate(((PdfDate)obj).GetW3CDate()); } if (PdfName.MODDATE.Equals(key)) { basic.AddModDate(((PdfDate)obj).GetW3CDate()); } } if (dc.Count > 0) AddRdfDescription(dc); if (p.Count > 0) AddRdfDescription(p); if (basic.Count > 0) AddRdfDescription(basic); if (PdfXConformance == PdfWriter.PDFA1A || PdfXConformance == PdfWriter.PDFA1B) { PdfA1Schema a1 = new PdfA1Schema(); if (PdfXConformance == PdfWriter.PDFA1A) a1.AddConformance("A"); else a1.AddConformance("B"); AddRdfDescription(a1); } } } /** * @param os * @param info * @throws IOException */ public XmpWriter(Stream os, Hashtable info) : this(os) { if (info != null) { DublinCoreSchema dc = new DublinCoreSchema(); PdfSchema p = new PdfSchema(); XmpBasicSchema basic = new XmpBasicSchema(); String value; foreach (DictionaryEntry entry in info) { String key = (String)entry.Key; value = (String)entry.Value; if (value == null) continue; if ("Title".Equals(key)) { dc.AddTitle(value); } if ("Author".Equals(key)) { dc.AddAuthor(value); } if ("Subject".Equals(key)) { dc.AddSubject(value); dc.AddDescription(value); } if ("Keywords".Equals(key)) { p.AddKeywords(value); } if ("Creator".Equals(key)) { basic.AddCreatorTool(value); } if ("Producer".Equals(key)) { p.AddProducer(value); } if ("CreationDate".Equals(key)) { basic.AddCreateDate(PdfDate.GetW3CDate(value)); } if ("ModDate".Equals(key)) { basic.AddModDate(PdfDate.GetW3CDate(value)); } } if (dc.Count > 0) AddRdfDescription(dc); if (p.Count > 0) AddRdfDescription(p); if (basic.Count > 0) AddRdfDescription(basic); } } } }