/*
 *  sligraphics.h
 *
 *  This file is part of NEST.
 *
 *  Copyright (C) 2004 The NEST Initiative
 *
 *  NEST 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.
 *
 *  NEST 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 NEST.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef SLIPGM_H
#define SLIPGM_H

#include <iostream>
#include <string>
#include <vector>
#include "stringdatum.h"
#include "fdstream.h"
#include "slimodule.h"
#include "slifunction.h"
#include "interpret.h"


using std::vector;
using std::string;

class SLIgraphics: public SLIModule
{

  class ReadPGMFunction: public SLIFunction
  {
  private:
    std::istream * openPGMFile(StringDatum*) const;  //!< opens the file
    void readMagicNumber(std::istream*, char[2]) const; //!< reads the magic number into string magic
    void initRead(std::istream*, int&, int&, int &) const;        //!< reads width, height, maxval
    void readImage(std::istream*, char[2], vector<long> &, int, int, int) const;       //!< reads the image
    
  public:
    virtual void execute(SLIInterpreter*) const;

    
  };

  class WritePGMFunction: public SLIFunction
  {
  public:
    virtual void execute(SLIInterpreter*) const;
  };

  ReadPGMFunction  readpgmfunction;
  WritePGMFunction writepgmfunction;

public:

  SLIgraphics(){}
  
  void init(SLIInterpreter *);
  const string name(void) const;
  const string commandstring(void) const;

};


#endif