itkPixelTraits.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkPixelTraits.h,v $
  Language:  C++
  Date:      $Date: 2002/09/11 19:57:13 $
  Version:   $Revision: 1.25 $

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

  Portions of this code are covered under the VTK copyright.
  See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.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 __itkPixelTraits_h
#define __itkPixelTraits_h

namespace itk
{

template<class TPixelType>
class PixelTraits
{
public:
  itkStaticConstMacro(Dimension, unsigned int, TPixelType::Length);
  
  typedef typename TPixelType::ValueType ValueType;
};

template <>
class PixelTraits<bool>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef bool ValueType;
};

template <>
class PixelTraits<char>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef char ValueType;
};

template <>
class PixelTraits<unsigned char>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef unsigned char ValueType;
};

template <>
class PixelTraits<short>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef short ValueType;
};

template <>
class PixelTraits<unsigned short>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef unsigned short ValueType;
};

template <>
class PixelTraits<int>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef int ValueType;
};

template <>
class PixelTraits<unsigned int>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef unsigned int ValueType;
};

template <>
class PixelTraits<long>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef long ValueType;
};

template <>
class PixelTraits<unsigned long>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef unsigned long ValueType;
};

template <>
class PixelTraits<float>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef float ValueType;
};

template <>
class PixelTraits<double>
{
public:
  itkStaticConstMacro(Dimension, unsigned int, 1);
  typedef double ValueType;
};

template <class TValueType1, class TValueType2>
class JoinTraits
{
public:
  typedef TValueType1 ValueType;
};

template<>
class JoinTraits<bool, bool>
{
public:
  typedef bool ValueType;
};

template<>
class JoinTraits<bool, char>
{
public:
  typedef char ValueType;
};

template<>
class JoinTraits<bool, unsigned char>
{
public:
  typedef unsigned char ValueType;
};

template<>
class JoinTraits<bool, short>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<bool, unsigned short>
{
public:
  typedef unsigned short ValueType;
};

template<>
class JoinTraits<bool, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<bool, unsigned int>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<bool, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<bool, unsigned long>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<bool, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<bool, double>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<char, bool>
{
public:
  typedef char ValueType;
};

template<>
class JoinTraits<char, char>
{
public:
  typedef char ValueType;
};

template<>
class JoinTraits<char, unsigned char>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<char, short>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<char, unsigned short>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<char, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<char, unsigned int>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<char, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<char, unsigned long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<char, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<char, double>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<unsigned char, bool>
{
public:
  typedef unsigned char ValueType;
};

template<>
class JoinTraits<unsigned char, char>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<unsigned char, unsigned char>
{
public:
  typedef unsigned char ValueType;
};

template<>
class JoinTraits<unsigned char, short>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<unsigned char, unsigned short>
{
public:
  typedef unsigned short ValueType;
};

template<>
class JoinTraits<unsigned char, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<unsigned char, unsigned int>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned char, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<unsigned char, unsigned long>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned char, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned char, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<short, bool>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<short, char>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<short, unsigned char>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<short, short>
{
public:
  typedef short ValueType;
};

template<>
class JoinTraits<short, unsigned short>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<short, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<short, unsigned int>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<short, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<short, unsigned long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<short, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<short, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<unsigned short, bool>
{
public:
  typedef unsigned short ValueType;
};

template<>
class JoinTraits<unsigned short, char>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<unsigned short, unsigned char>
{
public:
  typedef unsigned short ValueType;
};

template<>
class JoinTraits<unsigned short, short>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<unsigned short, unsigned short>
{
public:
  typedef unsigned short ValueType;
};

template<>
class JoinTraits<unsigned short, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<unsigned short, unsigned int>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned short, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<unsigned short, unsigned long>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned short, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned short, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<int, bool>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, char>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, unsigned char>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, short>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, unsigned short>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, int>
{
public:
  typedef int ValueType;
};

template<>
class JoinTraits<int, unsigned int>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<int, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<int, unsigned long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<int, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<int, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<unsigned int, bool>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned int, char>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned int, unsigned char>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned int, short>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned int, unsigned short>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned int, int>
{
public:
  // unsigned int & unsigned long may be the same size, so promote to float
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned int, unsigned int>
{
public:
  typedef unsigned int ValueType;
};

template<>
class JoinTraits<unsigned int, long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned int, unsigned long>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned int, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned int, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<long, bool>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, char>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, unsigned char>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, short>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, unsigned short>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, int>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, unsigned int>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<long, long>
{
public:
  typedef long ValueType;
};

template<>
class JoinTraits<long, unsigned long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<long, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<long, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<unsigned long, bool>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned long, char>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned long, unsigned char>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned long, short>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned long, unsigned short>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned long, int>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned long, unsigned int>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned long, long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned long, unsigned long>
{
public:
  typedef unsigned long ValueType;
};

template<>
class JoinTraits<unsigned long, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<unsigned long, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<float, bool>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, char>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, unsigned char>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, short>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, unsigned short>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, int>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, unsigned int>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, unsigned long>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, float>
{
public:
  typedef float ValueType;
};

template<>
class JoinTraits<float, double>
{
public:
  typedef double ValueType;
};
  
template<>
class JoinTraits<double, bool>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, char>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, unsigned char>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, short>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, unsigned short>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, int>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, unsigned int>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, long>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, unsigned long>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, float>
{
public:
  typedef double ValueType;
};

template<>
class JoinTraits<double, double>
{
public:
  typedef double ValueType;
};
  
} // end namespace itk

#endif // __itkPixelTraits_h

---