// =========================================================================
// @author Leonardo Florez Valencia
// @email florez-l@javeriana.edu.co
// =========================================================================
#ifndef __fpa__Functors__RegionGrow__BinaryThreshold__h__
#define __fpa__Functors__RegionGrow__BinaryThreshold__h__

#include <itkFunctionBase.h>

namespace fpa
{
  namespace Functors
  {
    namespace RegionGrow
    {
      /**
       */
      template< class _TValue >
      class BinaryThreshold
        : public itk::FunctionBase< _TValue, bool >
      {
      public:
        typedef _TValue TValue;
        typedef itk::FunctionBase< TValue, bool > Superclass;
        typedef BinaryThreshold                   Self;
        typedef itk::SmartPointer< Self >         Pointer;
        typedef itk::SmartPointer< const Self >   ConstPointer;

      public:
        itkNewMacro( Self );
        itkTypeMacro(
          fpa::Functors::RegionGrow::BinaryThreshold, itk::FunctionBase
          );

        itkGetConstMacro( LowerThreshold, TValue );
        itkSetMacro( LowerThreshold, TValue );

        itkGetConstMacro( UpperThreshold, TValue );
        itkSetMacro( UpperThreshold, TValue );

        itkBooleanMacro( Strict );
        itkGetConstMacro( Strict, bool );
        itkSetMacro( Strict, bool );

      public:
        void ThresholdAbove( const TValue& a );
        void ThresholdBetween( const TValue& a, const TValue& b );
        void ThresholdBelow( const TValue& a );

        virtual bool Evaluate( const TValue& v ) const override;

      protected:
        BinaryThreshold( );
        virtual ~BinaryThreshold( );

      private:
        // Purposely not implemented.
        BinaryThreshold( const Self& other );
        Self& operator=( const Self& other );

      protected:
        TValue m_LowerThreshold;
        TValue m_UpperThreshold;
        bool m_Strict;
      };

    } // ecapseman

  } // ecapseman

} // ecapseman

#ifndef ITK_MANUAL_INSTANTIATION
#  include <fpa/Functors/RegionGrow/BinaryThreshold.hxx>
#endif // ITK_MANUAL_INSTANTIATION
#endif // __fpa__Functors__RegionGrow__BinaryThreshold__h__
// eof - $RCSfile$