56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
#ifndef id873715F57B504CCF8227CE03EA28CAFA
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#define id873715F57B504CCF8227CE03EA28CAFA
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#include "primitivetypes.hpp"
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#include <boost/iterator/iterator_facade.hpp>
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#include <iterator>
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#include <vector>
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namespace dk {
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namespace implem {
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template <size_t D>
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inline size_t get_index_from_pos ( const Vector<CoordinateScalarType, D>& parPos, const Vector<CoordinateScalarType, D>& parSize ) a_pure;
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#if defined(NDEBUG)
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template <>
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inline size_t get_index_from_pos ( const Vector<CoordinateScalarType, 2>& parPos, const Vector<CoordinateScalarType, 2>& parSize ) a_pure;
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#endif
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} //namespace implem
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template <typename T, size_t D>
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class TileIterator : public boost::iterator_facade<TileIterator<T, D>, T, boost::bidirectional_traversal_tag> {
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friend class boost::iterator_core_access;
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public:
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typedef Vector<CoordinateScalarType, D> coords;
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TileIterator ( void );
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TileIterator ( const TileIterator& parOther ) = default;
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TileIterator ( std::vector<T>* parData, const coords& parFrom, const coords& parTo );
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TileIterator ( std::vector<T>* parData, const coords& parFrom, const coords& parTo, const coords& parAreaFrom, const coords& parAreaTo, const coords& parTotal );
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~TileIterator ( void ) = default;
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const coords& position ( void ) const { return m_pos; }
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private:
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void increment ( void );
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void decrement ( void );
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void advance ( size_t parAdvance );
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ptrdiff_t distance_to ( const TileIterator& parOther );
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bool equal ( const TileIterator& parOther ) const;
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T& dereference ( void ) const { return (*m_data)[get_current_index()]; }
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size_t get_current_index ( void ) const { return implem::get_index_from_pos(m_pos, m_total); }
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coords m_pos;
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coords m_from;
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coords m_to;
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coords m_areafrom;
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coords m_areato;
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coords m_total;
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std::vector<T>* m_data;
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};
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} //namespace dk
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#include "implem/tileiterator.inl"
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#endif
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