itkDefaultPixelAccessorFunctor.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkDefaultPixelAccessorFunctor.h,v $
  Language:  C++
  Date:      $Date: 2005/08/30 18:21:22 $
  Version:   $Revision: 1.6 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkDefaultPixelAccessorFunctor_h
#define __itkDefaultPixelAccessorFunctor_h

namespace itk
{
template <class TImageType >
class ITK_EXPORT DefaultPixelAccessorFunctor
{
public:
  typedef TImageType                                   ImageType;
  typedef typename ImageType::InternalPixelType        InternalPixelType;
  typedef typename ImageType::PixelType                ExternalPixelType;
  typedef typename ImageType::AccessorType             PixelAccessorType;
  typedef unsigned int                                 VectorLengthType;
  
  static void SetVectorLength( ImageType *, VectorLengthType )
    { 
    }

  static VectorLengthType GetVectorLength( const ImageType * )
    {
    return 1;
    } 
  
  inline void SetPixelAccessor( PixelAccessorType& accessor ) 
    {
    m_PixelAccessor = accessor;
    }

  inline void SetBegin( const InternalPixelType *itkNotUsed(begin) ) {};
  
  inline void Set( InternalPixelType & output, const ExternalPixelType &input ) const
    {
    m_PixelAccessor.Set( output, input );
    }

  inline ExternalPixelType Get( InternalPixelType &input ) const
    {
    return m_PixelAccessor.Get( input );
    }

  inline const ExternalPixelType Get( const InternalPixelType & input ) const
    {
    return m_PixelAccessor.Get( input );
    }
  
private:
  PixelAccessorType m_PixelAccessor; // The pixel accessor
};

}

#endif    

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