itkPathIterator.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 __itkPathIterator_h
#define __itkPathIterator_h

#include "itkPathConstIterator.h"

namespace itk
{
template< typename TImage, typename TPath >
class PathIterator:public PathConstIterator< TImage, TPath >
{
public:

  typedef PathIterator Self;

  itkStaticConstMacro(ImageIteratorDimension, unsigned int,
                      TImage::ImageDimension);

  typedef PathConstIterator< TImage, TPath > Superclass;

  typedef typename Superclass::IndexType             IndexType;
  typedef typename Superclass::OffsetType            OffsetType;
  typedef typename Superclass::SizeType              SizeType;
  typedef typename Superclass::ImageType             ImageType;
  typedef typename Superclass::PixelContainer        PixelContainer;
  typedef typename Superclass::PixelContainerPointer PixelContainerPointer;
  typedef typename Superclass::InternalPixelType     InternalPixelType;
  typedef typename Superclass::PixelType             PixelType;
  typedef typename Superclass::AccessorType          AccessorType;
  typedef typename Superclass::PathType              PathType;
  typedef typename Superclass::PathInputType         PathInputType;
  typedef typename Superclass::PathOutputType        PathOutputType;

  itkTypeMacro(PathIterator, PathConstIterator);

  void Set(const PixelType & value)
  {
    // Normally, this would just be the following:
    //   m_Image->SetPixel(m_CurrentImageIndex,value);
    // However, we don't want a warning about m_Image being a ConstPointer
    // in the Superclass.
    const_cast< ImageType * >( this->m_Image.GetPointer() )->
    SetPixel(this->m_CurrentImageIndex, value);
  }

  PixelType & Value(void)
  {
    return this->GetImage()->GetPixel(this->m_ImageIndex);
  }

  Self & operator=(const Self & it);

  PathIterator(ImageType *imagePtr, const PathType  *pathPtr);

  virtual ~PathIterator() {}
};
} // end namespace itk

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

#endif