WPGHeader.h

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00001 /* libwpg
00002  * Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
00003  * Copyright (C) 2004 Marc Oude Kotte (marc@solcon.nl)
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public
00016  * License along with this library; if not, write to the 
00017  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 
00018  * Boston, MA  02111-1301 USA
00019  *
00020  * For further information visit http://libwpg.sourceforge.net
00021  */
00022 
00023 /* "This product is not manufactured, approved, or supported by
00024  * Corel Corporation or Corel Corporation Limited."
00025  */
00026 
00027 #ifndef __WPGHEADER_H__
00028 #define __WPGHEADER_H__
00029 
00030 #include <libwpd/WPXStream.h>
00031 
00032 class WPGHeader 
00033 {
00034 public:
00035         WPGHeader();
00036         
00037         bool load(WPXInputStream *input);
00038         
00039         bool isSupported() const;
00040         
00041         unsigned long startOfDocument() const;
00042         
00043         int majorVersion() const;
00044 
00045 private:
00046         unsigned char m_identifier[4];          // should always be 0xFF followed by "WPC"
00047         unsigned long m_startOfDocument;        // index into file
00048         unsigned char m_productType;            // should always be 1 for WPG files
00049         unsigned char m_fileType;               // should always be 22 for WPG files
00050         unsigned char m_majorVersion;           // 2 for WPG 8.0 files
00051         unsigned char m_minorVersion;           // 0 for WPG 8.0 files
00052         unsigned int  m_encryptionKey;          // 0 when not encrypted
00053         unsigned int  m_startOfPacketData;      // unused, since according to the docs no packets are defined
00054         unsigned char m_entryCount;             // number of entries in extension
00055         unsigned char m_resourceComplete;       // resource completeness indicator
00056         unsigned int  m_encryptionBlockOffset;  // encryption block offset
00057         unsigned long m_fileSize;               // size of the entire wpg file
00058         unsigned int  m_encryptVersion;         // encryption version information
00059 };
00060 
00061 #endif // WPGHEADER

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