#ifndef __creaImageIOImageReader_h_INCLUDED__
#define __creaImageIOImageReader_h_INCLUDED__

#include <creaImageIOSystem.h>
#include <creaImageIOAbstractImageReader.h>

namespace creaImageIO
{

 
  /**
   * \ingroup IO
   * \brief Generic image reader which uses all the specific concrete image reader of the lib (tif, jpg, dicom, ...)
   */
  class CREAIMAGEIO_EXPORT ImageReader : virtual public AbstractImageReader
  {
  public:
    ImageReader();
    ~ImageReader();

    /// Pushes back all kwown extensions (without dot) in the vector given
    void PushBackExtensions(std::vector<std::string>&);

    /// Returns true iff the file is readable
    bool CanRead( const std::string& filename);
    /// Reads and returns the image data. 
    /// Returns an "Unreadable image" picture if fails
    vtkImageData* ReadImage( const std::string& filename);
    
    /// Reads the attributes of the image.
    /// Requested attributes names are provided as keys 
    /// in a string to string map
    /// On return, the values of the map are the values 
    /// of the attributes (empty string if not available).
    void ReadAttributes(const std::string& filename, 
			tree::AttributeMapType& attr);

    /// Exclude specific readers 
    /// TO DO...
    

  protected:
    
    /// Register a reader
    void Register( boost::shared_ptr<AbstractImageReader> );

	std::vector<boost::shared_ptr<AbstractImageReader> > mReader;
    vtkImageData* mUnreadableImage;

    std::string mLastFilename;
	boost::shared_ptr<AbstractImageReader> mLastReader;

	bool ShallNotRead( const std::string& filename );

	void UnRegister(const std::string i_val);

	std::vector <std::string> mUnReader;
    
  private:

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



} // namespace creaImageIO



#endif // #ifndef __creaImageIOImageReader_h_INCLUDED__