itkTobogganImageFilter.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 __itkTobogganImageFilter_h
#define __itkTobogganImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkConstNeighborhoodIterator.h"

namespace itk
{
template< typename TInputImage >
class TobogganImageFilter:
  public ImageToImageFilter<
    TInputImage,
    Image< IdentifierType, TInputImage::ImageDimension > >
{
public:
  typedef TobogganImageFilter Self;

  typedef TInputImage InputImageType;

  itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);

  typedef Image< IdentifierType, itkGetStaticConstMacro(NDimensions) > OutputImageType;

  typedef typename OutputImageType::PixelType OutputImagePixelType;

  typedef typename InputImageType::PixelType InputImagePixelType;

  enum { ImageDimension = InputImageType::ImageDimension };

  typedef typename InputImageType::RegionType   RegionType;
  typedef typename InputImageType::SizeType     SizeType;
  typedef typename InputImageType::IndexType    IndexType;
  typedef typename InputImageType::Pointer      InputImagePointer;
  typedef typename InputImageType::ConstPointer InputImageConstPointer;
  typedef typename OutputImageType::Pointer     OutputImagePointer;

  typedef ImageToImageFilter< InputImageType, OutputImageType > Superclass;

  typedef typename InputImageType::PixelType ScalarType;

  typedef SmartPointer< Self > Pointer;

  itkTypeMacro(TobogganImageFilter, ImageToImageFilter);

  itkNewMacro(Self);

  void GenerateData();

  void GenerateInputRequestedRegion();

  void EnlargeOutputRequestedRegion(DataObject *);

  typedef ConstNeighborhoodIterator< TInputImage >
  NeighborhoodIteratorType;

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( LessThanComparableCheck,
                   ( Concept::LessThanComparable< InputImagePixelType > ) );
  itkConceptMacro( OStreamWritableCheck,
                   ( Concept::OStreamWritable< InputImagePixelType > ) );
  // End concept checking
#endif

protected:
  TobogganImageFilter();
  ~TobogganImageFilter() {}
  void PrintSelf(std::ostream & os, Indent indent) const;

private:
  TobogganImageFilter(const Self &); //purposely not implemented
  void operator=(const Self &);      //purposely not implemented
};                                   // end of class
} // end namespace itk

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

#endif