WP5VariableLengthGroup.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
00002 /* libwpd
00003  * Version: MPL 2.0 / LGPLv2.1+
00004  *
00005  * This Source Code Form is subject to the terms of the Mozilla Public
00006  * License, v. 2.0. If a copy of the MPL was not distributed with this
00007  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
00008  *
00009  * Major Contributor(s):
00010  * Copyright (C) 2003 William Lachance (wrlach@gmail.com)
00011  * Copyright (C) 2003 Marc Maurer (uwog@uwog.net)
00012  * Copyright (C) 2006 Fridrich Strba (fridrich.strba@bluewin.ch)
00013  *
00014  * For minor contributions see the git repository.
00015  *
00016  * Alternatively, the contents of this file may be used under the terms
00017  * of the GNU Lesser General Public License Version 2.1 or later
00018  * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
00019  * applicable instead of those above.
00020  *
00021  * For further information visit http://libwpd.sourceforge.net
00022  */
00023 
00024 /* "This product is not manufactured, approved, or supported by
00025  * Corel Corporation or Corel Corporation Limited."
00026  */
00027 
00028 #ifndef WP5VARIABLELENGTHGROUP_H
00029 #define WP5VARIABLELENGTHGROUP_H
00030 
00031 #include "WP5Part.h"
00032 
00033 class WP5VariableLengthGroup_SubGroup
00034 {
00035 public:
00036         virtual ~WP5VariableLengthGroup_SubGroup() {}
00037         virtual void parse(WP5Listener *listener) = 0;
00038 };
00039 
00040 class WP5VariableLengthGroup : public WP5Part
00041 {
00042 public:
00043         WP5VariableLengthGroup(); // WP5VariableLengthGroup should _never_ be constructed, only its inherited classes
00044         virtual ~WP5VariableLengthGroup() {}
00045 
00046         static WP5VariableLengthGroup *constructVariableLengthGroup(WPXInputStream *input, WPXEncryption *encryption, const uint8_t group);
00047 
00048         static bool isGroupConsistent(WPXInputStream *input, WPXEncryption *encryption, const uint8_t group);
00049 
00050 protected:
00051         void _read(WPXInputStream *input, WPXEncryption *encryption);
00052         virtual void _readContents(WPXInputStream * /* input */, WPXEncryption * /* encryption */) {} // we don't always need more information than that provided generically
00053 
00054         uint8_t getSubGroup() const
00055         {
00056                 return m_subGroup;
00057         }
00058         uint16_t getSize() const
00059         {
00060                 return m_size;
00061         }
00062 
00063 private:
00064         uint8_t m_subGroup;
00065         uint16_t m_size;
00066 };
00067 
00068 #endif /* WP5VARIABLELENGTHGROUP_H */
00069 /* vim:set shiftwidth=4 softtabstop=4 noexpandtab: */