WP5VariableLengthGroup.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* libwpd
 * Version: MPL 2.0 / LGPLv2.1+
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Major Contributor(s):
 * Copyright (C) 2003 William Lachance (wrlach@gmail.com)
 * Copyright (C) 2003 Marc Maurer (uwog@uwog.net)
 * Copyright (C) 2006 Fridrich Strba (fridrich.strba@bluewin.ch)
 *
 * For minor contributions see the git repository.
 *
 * Alternatively, the contents of this file may be used under the terms
 * of the GNU Lesser General Public License Version 2.1 or later
 * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
 * applicable instead of those above.
 *
 * For further information visit http://libwpd.sourceforge.net
 */
 
/* "This product is not manufactured, approved, or supported by
 * Corel Corporation or Corel Corporation Limited."
 */
 
#ifndef WP5VARIABLELENGTHGROUP_H
#define WP5VARIABLELENGTHGROUP_H
 
#include "WP5Part.h"
 
class WP5VariableLengthGroup_SubGroup
{
public:
        virtual ~WP5VariableLengthGroup_SubGroup() {}
        virtual void parse(WP5Listener *listener) = 0;
};
 
class WP5VariableLengthGroup : public WP5Part
{
public:
        WP5VariableLengthGroup(); // WP5VariableLengthGroup should _never_ be constructed, only its inherited classes
        ~WP5VariableLengthGroup() override {}
 
        static WP5VariableLengthGroup *constructVariableLengthGroup(librevenge::RVNGInputStream *input, WPXEncryption *encryption, const unsigned char group);
 
        static bool isGroupConsistent(librevenge::RVNGInputStream *input, WPXEncryption *encryption, const unsigned char group);
 
protected:
        void _read(librevenge::RVNGInputStream *input, WPXEncryption *encryption);
        virtual void _readContents(librevenge::RVNGInputStream * /* input */, WPXEncryption * /* encryption */) {} // we don't always need more information than that provided generically
 
        unsigned char getSubGroup() const
        {
                return m_subGroup;
        }
        unsigned short getSize() const
        {
                return m_size;
        }
 
private:
        unsigned char m_subGroup;
        unsigned short m_size;
};
 
#endif /* WP5VARIABLELENGTHGROUP_H */
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