virtualseeker.hpp

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#pragma once
#ifndef ZIPIOS_VIRTUALSEEKER_HPP
#define ZIPIOS_VIRTUALSEEKER_HPP
 
/*
  Zipios -- a small C++ library that provides easy access to .zip files.
 
  Copyright (C) 2000-2007  Thomas Sondergaard
  Copyright (c) 2015-2022  Made to Order Software Corp.  All Rights Reserved
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) 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
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
 
#include "zipios/zipios-config.hpp"
 
 
namespace zipios
{
 
 
class VirtualSeeker
{
public:
                    VirtualSeeker(offset_t start_offset = 0, offset_t end_offset = 0);
 
    void            setOffsets(offset_t start_offset, offset_t end_offset);
    void            getOffsets(offset_t & start_offset, offset_t & end_offset) const;
    offset_t        startOffset() const;
    offset_t        endOffset() const;
    void            vseekg(std::istream & is, offset_t offset, std::ios::seekdir sd) const;
    std::streampos  vtellg(std::istream & is) const;
 
private:
    offset_t        m_start_offset = 0;
    offset_t        m_end_offset = 0;
};
 
 
} // zipios namespace
 
// Local Variables:
// mode: cpp
// indent-tabs-mode: nil
// c-basic-offset: 4
// tab-width: 4
// End:
 
// vim: ts=4 sw=4 et
#endif