#ifndef __creaImageIOImageReader_h_INCLUDED__
#define __creaImageIOImageReader_h_INCLUDED__


#include <creaImageIODicomNode.h>

#include <vtkImageData.h>
#include <string>
#include <vector>

namespace creaImageIO
{


  //=====================================================================
  class SpecificImageReader;
  //=====================================================================

  //=====================================================================
  class ImageReader
  {
  public:
    ImageReader();
    ~ImageReader();

    // Returns the known extensions
    /*static*/ const std::vector<std::string>& GetKnownExtensions()  
    { return mKnownExtensions; }
    // Returns true iff the file is readable
    /*static*/ bool CanRead( const std::string& filename, 
			 const std::string& exclude = "");
    // Reads the file. Returns an "Unreadable image" picture if fails
    /*static*/ vtkImageData* Read( const std::string& filename,
			       const std::string& exclude = "");

    void ReadDicomInfo(const std::string& filename, 
		       DicomNode* image);

  protected:
    
    /*static*/ void Register(SpecificImageReader*);

    /*static*/ std::vector<SpecificImageReader*> mReader;
    /*static*/ std::vector<std::string> mKnownExtensions;
    /*static*/ vtkImageData* mUnreadableImage;

    /*static*/ std::string mLastFilename;
    /*static*/ SpecificImageReader* mLastReader;
    
  private:

  }; // class ImageReader
  //=====================================================================



} // namespace creaImageIO



#endif // #ifndef __creaImageIOImageReader_h_INCLUDED__