//
//  Filename         : ViewMapIO.h
//  Author(s)        : Emmanuel Turquin
//  Purpose          : Functions to manage I/O for the view map
//  Date of creation : 09/01/2003
//
///////////////////////////////////////////////////////////////////////////////


//
//  Copyright (C) : Please refer to the COPYRIGHT file distributed 
//   with this source distribution. 
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the GNU General Public License
//  as published by the Free Software Foundation; either version 2
//  of the License, or (at your option) any later version.
//
//  This program 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 General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef  VIEWMAPIO_H
# define VIEWMAPIO_H

# include "ViewMap.h"
# include <fstream>
# include <string>
# include "../system/FreestyleConfig.h"
# include "../system/ProgressBar.h"

namespace ViewMapIO {

  static const unsigned ZERO  = UINT_MAX;

  LIB_VIEW_MAP_EXPORT
  int load(istream& in, ViewMap* vm, ProgressBar* pb = NULL);

  LIB_VIEW_MAP_EXPORT
  int save(ostream& out, ViewMap* vm, ProgressBar* pb = NULL);

  namespace Options {
    
    static const unsigned char FLOAT_VECTORS = 1;
    static const unsigned char NO_OCCLUDERS  = 2;
    
    LIB_VIEW_MAP_EXPORT
    void		setFlags(const unsigned char flags);
    
    LIB_VIEW_MAP_EXPORT
    void		addFlags(const unsigned char flags);

    LIB_VIEW_MAP_EXPORT
    void		rmFlags(const unsigned char flags);

    LIB_VIEW_MAP_EXPORT
    unsigned char	getFlags();
    
    LIB_VIEW_MAP_EXPORT
    void		setModelsPath(const string& path);

    LIB_VIEW_MAP_EXPORT
    string		getModelsPath();

  }; // End of namepace Options

# ifdef IRIX
  
  namespace Internal {
    
    template <unsigned S>
    ostream& write(ostream& out, const char* str) {
      out.put(str[S - 1]);
      return write<S - 1>(out, str);
    }
    
    template<>
    ostream& write<1>(ostream& out, const char* str) {
      return out.put(str[0]);
    }

    template<>
    ostream& write<0>(ostream& out, const char*) {
      return out;
    }

    template <unsigned S>
    istream& read(istream& in, char* str) {
      in.get(str[S - 1]);
      return read<S - 1>(in, str);
    }
    
    template<>
    istream& read<1>(istream& in, char* str) {
      return in.get(str[0]);
    }

    template<>
    istream& read<0>(istream& in, char*) {
      return in;
    }
    
  } // End of namespace Internal

# endif // IRIX

} // End of namespace ViewMapIO

#endif // VIEWMAPIO_H