spmW.h

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/* This software and supporting documentation are distributed by
 *     Institut Federatif de Recherche 49
 *     CEA/NeuroSpin, Batiment 145,
 *     91191 Gif-sur-Yvette cedex
 *     France
 *
 * This software is governed by the CeCILL-B license under
 * French law and abiding by the rules of distribution of free software.
 * You can  use, modify and/or redistribute the software under the
 * terms of the CeCILL-B license as circulated by CEA, CNRS
 * and INRIA at the following URL "http://www.cecill.info".
 *
 * As a counterpart to the access to the source code and  rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty  and the software's author,  the holder of the
 * economic rights,  and the successive licensors  have only  limited
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 */

/*
 *  Spm writer class
 */
#ifndef AIMS_IO_SPMW_H
#define AIMS_IO_SPMW_H

#include <aims/config/aimsdata_config.h>
#include <fstream>
#include <string>
#include <aims/data/data.h>


namespace aims
{
  template <class T> class SpmWriter;

  template <class T>
  SpmWriter<T>& operator << ( SpmWriter<T>& writer, const AimsData<T>& thing );


  template <class T>
  class SpmWriter
  {
  public:
    SpmWriter( const std::string& name ) 
      : _name( name ) { }
    virtual ~SpmWriter() { }

    void write( const AimsData<T>& thing );

    inline std::string removeExtension( const std::string& name );

    friend
    SpmWriter<T>& 
    operator << <> (SpmWriter<T>& writer, const AimsData<T>& thing);

  private:
    std::ofstream _os;
    std::string   _name;
  };


  template <class T>
  inline 
  std::string SpmWriter<T>::removeExtension( const std::string& name )
  {
    std::string res = name;
    std::string ext="";
    if ( res.length() > 4 )
      ext = res.substr( int(res.length() - 4), 4 );
    if (ext == ".hdr" || ext == ".img")
      res = res.substr( 0, res.length() - 4 );
    return res;
  }


  template <class T> inline
  SpmWriter<T>& operator << ( SpmWriter<T>& writer, const AimsData<T>& thing )
  {
    writer.write(thing);
    return writer;
  }

}

#endif