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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 itkCorrespondenceDataStructureIterator_h
#define itkCorrespondenceDataStructureIterator_h
#include "itkMacro.h"
namespace itk
{
/** \class CorrespondenceDataStructureIterator
* \brief An iterator designed to easily traverse an
* CorrespondenceDataStructure.
*
* \ingroup ITKCommon
*/
template <typename TStructureType>
class ITK_TEMPLATE_EXPORT CorrespondenceDataStructureIterator
{
public:
/** Standard class type aliases. */
using Self = CorrespondenceDataStructureIterator;
/** Get the dimension (size) of the index. */
static unsigned int
GetIteratorDimension()
{
return TStructureType::dim;
}
/** Is the iterator at the end of the region? */
bool
IsAtEnd() const;
/** Walk forward one index. (prefix) */
void
operator++()
{
GoToNext();
}
/** Walk forward one index. (postfix) */
void
operator++(int)
{
GoToNext();
}
/** Goes to the next corresponding node clique in the structure,
* moving on to the next base node clique if necessary. */
void
GoToNext();
/** Goes to the next base node clique. */
void
GoToNextBaseGroup();
/** Resets the iterator. */
void
Reset();
/** Constructor */
CorrespondenceDataStructureIterator(TStructureType * StructurePtr);
/** Destructor */
virtual ~CorrespondenceDataStructureIterator() = default;
using CorrespondingListType = typename TStructureType::CorrespondingListType;
using ItemType = typename TStructureType::ItemType;
using SecondaryNodeListType = typename TStructureType::SecondaryNodeListType;
using NodeListType = typename TStructureType::NodeListType;
using CorrespondingListIterator = typename CorrespondingListType::iterator;
using SecondaryNodeListIterator = typename SecondaryNodeListType::iterator;
using NodeListIterator = typename NodeListType::iterator;
/** Get m_CorrespondingListPointer. */
CorrespondingListType *
GetCorrespondingListPointer()
{
return m_CorrespondingListPointer;
}
CorrespondingListIterator m_CorrespondingListIterator{};
SecondaryNodeListIterator m_SecondaryListIterator{};
typename TStructureType::NodeListType::iterator m_NodeListIterator{};
protected:
/** Is the iterator at the end of its walk? */
bool m_IsAtEnd{};
TStructureType * m_Structure{};
ItemType * m_CorrespondingNodePointer{};
CorrespondingListType * m_CorrespondingListPointer{};
SecondaryNodeListType * m_SecondaryListPointer{};
NodeListType * m_NodeListPointer{};
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkCorrespondenceDataStructureIterator.hxx"
#endif
#endif
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