WP3VariableLengthGroup.h

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00001 /* libwpd
00002  * Copyright (C) 2004 Marc Maurer (uwog@uwog.net)
00003  * Copyright (C) 2005-2006 Fridrich Strba (fridrich.strba@bluewin.ch)
00004  *  
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Lesser 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 Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
00018  *
00019  * For further information visit http://libwpd.sourceforge.net
00020  */
00021 
00022 /* "This product is not manufactured, approved, or supported by 
00023  * Corel Corporation or Corel Corporation Limited."
00024  */
00025 
00026 #ifndef WP3VARIABLELENGTHGROUP_H
00027 #define WP3VARIABLELENGTHGROUP_H
00028 
00029 #include "WP3Part.h"
00030 
00031 class WPXEncryption;
00032 
00033 class WP3VariableLengthGroup : public WP3Part
00034 {
00035  public:
00036         WP3VariableLengthGroup(); // WP3VariableLengthGroup should _never_ be constructed, only its inherited classes
00037         virtual ~WP3VariableLengthGroup() {}
00038         
00039         static WP3VariableLengthGroup * constructVariableLengthGroup(WPXInputStream *input, WPXEncryption *encryption, const uint8_t group);
00040 
00041         static bool isGroupConsistent(WPXInputStream *input, WPXEncryption *encryption, const uint8_t group);
00042 
00043  protected:
00044         void _read(WPXInputStream *input, WPXEncryption *encryption);
00045         virtual void _readContents(WPXInputStream * /* input */, WPXEncryption * /* encryption */) {} // we don't always need more information than that provided generically
00046 
00047         uint8_t getSubGroup() const { return m_subGroup; }
00048         uint16_t getSize() const { return m_size;}
00049 
00050  private:
00051         uint8_t m_subGroup;
00052         uint16_t m_size; 
00053 };
00054 
00055 #endif /* WP3VARIABLELENGTHGROUP_H */

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