mitkSimpleFunctorPolicy.h

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#ifndef mitkSimpleFunctorPolicy_h
#define mitkSimpleFunctorPolicy_h
 
#include "itkIndex.h"
#include "mitkSimpleFunctorBase.h"
#include "MitkModelFitExports.h"
 
namespace mitk
{
 
  class MITKMODELFIT_EXPORT SimpleFunctorPolicy
  {
  public:
    typedef std::vector<mitk::ScalarType> InputPixelArrayType;
    typedef std::vector<mitk::ScalarType> OutputPixelArrayType;
 
    typedef SimpleFunctorBase               FunctorType;
    typedef SimpleFunctorBase::ConstPointer FunctorConstPointer;
 
    typedef itk::Index<3> IndexType;
 
    SimpleFunctorPolicy();
 
    ~SimpleFunctorPolicy();
 
    unsigned int GetNumberOfOutputs() const;
 
    void SetFunctor(const mitk::SimpleFunctorBase *functor);
 
    bool operator!=(const SimpleFunctorPolicy & other) const;
 
    bool operator==(const SimpleFunctorPolicy & other) const;
 
    inline OutputPixelArrayType operator()( const InputPixelArrayType & value, const IndexType& /*currentIndex*/ ) const
    {
      if (!m_Functor)
      {
        itkGenericExceptionMacro(<< "Error. Cannot process operator(). Functor is Null.");
      }
 
      OutputPixelArrayType result = m_Functor->Compute(value);
 
      return result;
    }
 
  private:
 
    FunctorConstPointer m_Functor;
  };
 
}
 
 
#endif