text: /*=========================================================================
   *
   *  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 __itkWrapPadImageFilter_h
  #define __itkWrapPadImageFilter_h
  
  #include "itkPadImageFilter.h"
  
  #include "itkPeriodicBoundaryCondition.h"
  
  namespace itk
  {
  /** \class WrapPadImageFilter
   * \brief Increase the image size by padding with replicants of the
   * input image value.
   *
   * WrapPadImageFilter changes the image bounds of an image.  Added
   * pixels are filled in with a wrapped replica of the input image.
   * For instance, if the output image needs a pixel that is <b>two pixels
   * to the left of the LargestPossibleRegion</b> of the input image, the
   * value assigned will be from the pixel <b>two pixels inside the right
   * boundary of the LargestPossibleRegion</b>. The image bounds of the
   * output must be specified.
   *
   * \image html WrapPadImageFilter.png "Visual explanation of padding regions."
   *
   * This filter is implemented as a multithreaded filter.  It provides a
   * ThreadedGenerateData() method for its implementation.
   *
   * \ingroup GeometricTransform
   * \sa MirrorPadImageFilter, ConstantPadImageFilter
   * \ingroup ITKImageGrid
   *
   * \wiki
   * \wikiexample{Images/WrapPadImageFilter,Pad an image by wrapping}
   * \endwiki
   */
  template< class TInputImage, class TOutputImage >
  class ITK_EXPORT WrapPadImageFilter:
    public PadImageFilter< TInputImage, TOutputImage >
  {
  public:
    /** Standard class typedefs. */
    typedef WrapPadImageFilter                          Self;
    typedef PadImageFilter< TInputImage, TOutputImage > Superclass;
    typedef SmartPointer< Self >                        Pointer;
    typedef SmartPointer< const Self >                  ConstPointer;
  
    /** Method for creation through the object factory. */
    itkNewMacro(Self);
  
    /** Run-time type information (and related methods). */
    itkTypeMacro(WrapPadImageFilter, PadImageFilter);
  
    typedef typename Superclass::InputImageType         InputImageType;
    typedef typename Superclass::OutputImageType        OutputImageType;
    typedef typename Superclass::InputImagePointer      InputImagePointer;
    typedef typename Superclass::OutputImagePointer     OutputImagePointer;
    typedef typename Superclass::InputImageConstPointer InputImageConstPointer;
  
    /** Typedef to describe the output image region type. */
    typedef typename Superclass::OutputImageRegionType OutputImageRegionType;
    typedef typename Superclass::InputImageRegionType  InputImageRegionType;
  
    /** Typedef to describe the type of pixel. */
    typedef typename Superclass::OutputImagePixelType OutputImagePixelType;
    typedef typename Superclass::InputImagePixelType  InputImagePixelType;
  
    /** Typedef to describe the output and input image index and size types. */
    typedef typename Superclass::OutputImageIndexType OutputImageIndexType;
    typedef typename Superclass::InputImageIndexType  InputImageIndexType;
    typedef typename Superclass::OutputImageSizeType  OutputImageSizeType;
    typedef typename Superclass::InputImageSizeType   InputImageSizeType;
  
    /** ImageDimension enumeration. */
    itkStaticConstMacro(ImageDimension, unsigned int,
                        TInputImage::ImageDimension);
  
  #ifdef ITK_USE_CONCEPT_CHECKING
    /** Begin concept checking */
    itkConceptMacro( InputConvertibleToOutputCheck,
                     ( Concept::Convertible< InputImagePixelType, OutputImagePixelType > ) );
    /** End concept checking */
  #endif
  
  protected:
    WrapPadImageFilter();
    ~WrapPadImageFilter() {}
  
  private:
    WrapPadImageFilter(const Self &); //purposely not implemented
    void operator=(const Self &);     //purposely not implemented
  
    PeriodicBoundaryCondition< TInputImage, TOutputImage > m_InternalBoundaryCondition;
  };
  } // end namespace itk
  
  #ifndef ITK_MANUAL_INSTANTIATION
  #include "itkWrapPadImageFilter.hxx"
  #endif
  
  #endif
  