/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image 
#                        pour la Santé)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  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/licences/Licence_CeCILL-B_V1-en.html 
#  or in the file LICENSE.txt.
#
#  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
#  liability. 
#
#  The fact that you are presently reading this means that you have had
#  knowledge of the CeCILL-B license and that you accept its terms.
# ------------------------------------------------------------------------
*/

#ifndef __creaImageIOAbstractImageReader_h_INCLUDED__
#define __creaImageIOAbstractImageReader_h_INCLUDED__


#include <vtkImageData.h>
//#include <itkImage.h>
#include <string>
#include <map>
#include <vector>
#include "creaImageIOTreeAttributeMapType.h"

namespace creaImageIO
{


  /**
   * \ingroup IO
   */
  
  //=====================================================================
  /// Abstract image reader 
  class AbstractImageReader 
  {
  public:
    AbstractImageReader() {}
    virtual ~AbstractImageReader() {}

	/// Get the reader's name
    const std::string& GetName() const { return mName; }

	/// Add file extensions read by the reader
    virtual void PushBackExtensions(std::vector<std::string>&) {}

	/// Test if file is read by this reader
    virtual bool CanRead(const std::string& filename) { return false; }

	/// return for a file a 2D VTkImage
    virtual vtkImageData* ReadImage(const std::string& filename) { return 0; }	


	/// return for a file an ItkImage
	//virtual itkImage* ReadImage(const std::string& filename) { return 0; }	
	/// Read the attributes for a file
    virtual void ReadAttributes(const std::string& filename, 
				tree::AttributeMapType& attr) {}

	/// Another function to read attributes for a file
	virtual void getAttributes(const std::string filename, std::map <std::string , std::string> &infos, std::vector<std::string> i_attr){}
  protected:

    /// Set the reader's name
    void SetName(const std::string& s) { mName = s; }
  private:
    std::string mName;
  };
  //=====================================================================



} // namespace creaImageIO



#endif // #ifndef __creaImageIOAbstractImageReader_h_INCLUDED__