itkNeighborhoodIterator.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkNeighborhoodIterator_h
#define __itkNeighborhoodIterator_h

#include <vector>
#include <cstring>
#include <iostream>
#include "itkConstNeighborhoodIterator.h"

namespace itk
{
template< typename TImage, typename TBoundaryCondition =
            ZeroFluxNeumannBoundaryCondition< TImage > >
class NeighborhoodIterator:
  public ConstNeighborhoodIterator< TImage, TBoundaryCondition >
{
public:

  typedef NeighborhoodIterator                                    Self;
  typedef ConstNeighborhoodIterator< TImage, TBoundaryCondition > Superclass;

  typedef typename Superclass::InternalPixelType InternalPixelType;
  typedef typename Superclass::PixelType         PixelType;
  typedef typename Superclass::SizeType          SizeType;
  typedef typename Superclass::ImageType         ImageType;
  typedef typename Superclass::RegionType        RegionType;
  typedef typename Superclass::IndexType         IndexType;
  typedef typename Superclass::OffsetType        OffsetType;
  typedef typename Superclass::RadiusType        RadiusType;
  typedef typename Superclass::NeighborhoodType  NeighborhoodType;
  typedef typename Superclass::Iterator          Iterator;
  typedef typename Superclass::ConstIterator     ConstIterator;
  typedef typename Superclass::ImageBoundaryConditionPointerType
  ImageBoundaryConditionPointerType;

  NeighborhoodIterator():Superclass() {}

  NeighborhoodIterator(const NeighborhoodIterator & n):Superclass(n) {}

  Self & operator=(const Self & orig)
  {
    Superclass::operator=(orig);
    return *this;
  }

  NeighborhoodIterator(const SizeType & radius, ImageType *ptr,
                       const RegionType & region):
    Superclass(radius, ptr, region) {}

  virtual void PrintSelf(std::ostream &, Indent) const;

  InternalPixelType * GetCenterPointer()
  { return ( this->operator[]( ( this->Size() ) >> 1 ) ); }

  virtual void SetCenterPixel(const PixelType & p)
  { this->m_NeighborhoodAccessorFunctor.Set(this->operator[]( ( this->Size() ) >> 1 ), p); }

  virtual void SetNeighborhood(const NeighborhoodType &);

  virtual void SetPixel(const unsigned i, const PixelType & v,
                        bool  & status);

  virtual void SetPixel(const unsigned i, const PixelType & v);

  //  { *(this->operator[](i)) = v; }

  virtual void SetPixel(const OffsetType o, const PixelType & v)
  { this->SetPixel(this->GetNeighborhoodIndex(o), v); }
  //  { *(this->operator[](o)) = v; }

  virtual void SetNext(const unsigned axis, const unsigned i,
                       const PixelType & v)
  {
    this->SetPixel(this->GetCenterNeighborhoodIndex()
                   + ( i * this->GetStride(axis) ), v);
  }

  virtual void SetNext(const unsigned axis, const PixelType & v)
  {
    this->SetPixel(this->GetCenterNeighborhoodIndex()
                   + this->GetStride(axis), v);
  }

  virtual void SetPrevious(const unsigned axis, const unsigned i,
                           const PixelType & v)
  {
    this->SetPixel(this->GetCenterNeighborhoodIndex()
                   - ( i * this->GetStride(axis) ), v);
  }

  virtual void SetPrevious(const unsigned axis,
                           const PixelType & v)
  {
    this->SetPixel(this->GetCenterNeighborhoodIndex()
                   - this->GetStride(axis), v);
  }
};
} // namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkNeighborhoodIterator.hxx"
#endif

#endif