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.pc/delete2/hide_file.hpp
00001 /*********************************************************************/
00002 // dar - disk archive - a backup/restoration program
00003 // Copyright (C) 2002-2052 Denis Corbin
00004 //
00005 // This program is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU General Public License
00007 // as published by the Free Software Foundation; either version 2
00008 // of the License, or (at your option) any later version.
00009 // 
00010 // This program 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
00013 // GNU General Public License for more details.
00014 // 
00015 // You should have received a copy of the GNU General Public License
00016 // along with this program; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00018 //
00019 // to contact the author : dar.linux@free.fr
00020 /*********************************************************************/
00021 // $Id$
00022 //
00023 /*********************************************************************/
00024 
00025 #ifndef HIDE_FILE_HPP
00026 #define HIDE_FILE_HPP
00027 
00028 
00029 #include "generic_file.hpp"
00030 #include <vector>
00031 
00032 class hide_file : public generic_file
00033 {
00034 public: 
00035     hide_file(generic_file &f);
00036 
00037     bool skip(const infinint & pos);
00038     bool skip_to_eof();
00039     bool skip_relative(S_I x);
00040     infinint get_position();
00041 
00042 protected:
00043     struct partie
00044     {
00045         infinint debut, longueur; // debut is the offset in ref file
00046         infinint offset; // offset in the resulting no commented file
00047     };
00048         
00049     vector <partie> morceau;
00050     generic_file *ref;
00051 
00052     S_I inherited_read(char *a, size_t size);
00053     S_I inherited_write(char *a, size_t size);
00054 
00055     virtual void fill_morceau() = 0;
00056         // the inherited classes have with this method
00057         // to fill the "morceau" variable that defines
00058         // the portions
00059 
00060 private:
00061     U_I pos_index;
00062     infinint pos_relicat;
00063     bool is_init;
00064 
00065     void init();
00066 };
00067 
00068 
00069 #endif
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