#ifndef __FPA__IMAGE__FUNCTORS__REGIONGROWALLBELONGSFUNCTION__H__
#define __FPA__IMAGE__FUNCTORS__REGIONGROWALLBELONGSFUNCTION__H__

#include <itkImageFunction.h>

namespace fpa
{
  namespace Image
  {
    namespace Functors
    {
      /**
       */
      template< class I >
      class RegionGrowAllBelongsFunction
        : public itk::ImageFunction< I, bool >
      {
      public:
        /// Type-related and pointers
        typedef RegionGrowAllBelongsFunction    Self;
        typedef itk::ImageFunction< I, bool >   Superclass;
        typedef itk::SmartPointer< Self >       Pointer;
        typedef itk::SmartPointer< const Self > ConstPointer;

        // Superclass' types
        typedef typename Superclass::InputImageType      InputImageType;
        typedef typename Superclass::InputPixelType      InputPixelType;
        typedef typename Superclass::OutputType          OutputType;
        typedef typename Superclass::CoordRepType        CoordRepType;
        typedef typename Superclass::IndexType           IndexType;
        typedef typename Superclass::IndexValueType      IndexValueType;
        typedef typename Superclass::ContinuousIndexType ContinuousIndexType;
        typedef typename Superclass::PointType           PointType;

      public:
        itkNewMacro( Self );
        itkTypeMacro( RegionGrowAllBelongsFunction, itkImageFunction );

      public:
        virtual OutputType Evaluate( const PointType& point ) const
          {
            IndexType index;
            this->ConvertPointToNearestIndex( point, index );
            return( this->EvaluateAtIndex( index ) );
          }
        virtual OutputType EvaluateAtContinuousIndex(
          const ContinuousIndexType& cindex
          ) const
          {
            IndexType index;
            this->ConvertContinuousIndexToNearestIndex( cindex, index );
            return( this->EvaluateAtIndex( index ) );
          }
        virtual OutputType EvaluateAtIndex( const IndexType& index ) const
          { return( true ); }

      protected:
        RegionGrowAllBelongsFunction( )
          : Superclass( )
          { }
        virtual ~RegionGrowAllBelongsFunction( )
          { }

      private:
        // Purposely not implemented
        RegionGrowAllBelongsFunction( const Self& );
        void operator=( const Self& );
      };

    } // ecapseman

  } // ecapseman

} // ecapseman

#endif // __FPA__IMAGE__FUNCTORS__REGIONGROWALLBELONGSFUNCTION__H__

// eof - $RCSfile$