# 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: hide_file.hpp,v 1.10.4.1 2007/07/22 16:34:59 edrusb Rel $
    00022 //
    00023 /*********************************************************************/
    00024
    00025 #ifndef HIDE_FILE_HPP
    00026 #define HIDE_FILE_HPP
    00027
    00028 #include "../my_config.h"
    00029 #include <vector>
    00030 #include "infinint.hpp"
    00031 #include "generic_file.hpp"
    00032
    00033 using namespace libdar;
    00034 using namespace std;
    00035
    00036 class hide_file : public generic_file
    00037 {
    00038 public:
    00039     hide_file(user_interaction & dialog, generic_file &f);
    00040
    00041     bool skip(const infinint & pos);
    00042     bool skip_to_eof();
    00043     bool skip_relative(S_I x);
    00044     infinint get_position();
    00045
    00046 protected:
    00047     struct partie
    00048     {
    00049         infinint debut, longueur; // debut is the offset in ref file
    00050         infinint offset; // offset in the resulting file
    00051     };
    00052
    00053     vector <partie> morceau;
    00054     generic_file *ref;
    00055
    00056     S_I inherited_read(char *a, size_t size);
    00057     S_I inherited_write(const char *a, size_t size);
    00058
    00059     virtual void fill_morceau() = 0;
    00060         // the inherited classes have with this method
    00061         // to fill the "morceau" variable that defines
    00062         // the portions
    00063
    00064 private:
    00065     U_I pos_index;
    00066     infinint pos_relicat;
    00067     bool is_init;
    00068
    00069     void init();
    00070 };
    00071
    00072
    00073 #endif