61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
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/*
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Copyright 2008 Intel Corporation
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Use, modification and distribution are subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt).
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*/
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#ifndef BOOST_POLYGON_ITERATOR_POINTS_TO_COMPACT_HPP
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#define BOOST_POLYGON_ITERATOR_POINTS_TO_COMPACT_HPP
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namespace boost { namespace polygon{
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template <typename iT, typename point_type>
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class iterator_points_to_compact {
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private:
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iT iter_, iterEnd_;
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orientation_2d orient_;
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mutable typename point_traits<point_type>::coordinate_type coord_;
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public:
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typedef typename point_traits<point_type>::coordinate_type coordinate_type;
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typedef std::forward_iterator_tag iterator_category;
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typedef coordinate_type value_type;
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typedef std::ptrdiff_t difference_type;
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typedef const coordinate_type* pointer; //immutable
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typedef const coordinate_type& reference; //immutable
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inline iterator_points_to_compact() : iter_(), iterEnd_(), orient_(), coord_() {}
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inline iterator_points_to_compact(iT iter, iT iterEnd) :
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iter_(iter), iterEnd_(iterEnd), orient_(HORIZONTAL), coord_() {}
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inline iterator_points_to_compact(const iterator_points_to_compact& that) :
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iter_(that.iter_), iterEnd_(that.iterEnd_), orient_(that.orient_), coord_(that.coord_) {}
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//use bitwise copy and assign provided by the compiler
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inline iterator_points_to_compact& operator++() {
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//iT tmp = iter_;
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++iter_;
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//iT tmp2 = iter_;
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orient_.turn_90();
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//while(tmp2 != iterEnd_ && get(*tmp2, orient_) == get(*tmp, orient_)) {
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// iter_ = tmp2;
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// ++tmp2;
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//}
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return *this;
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}
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inline const iterator_points_to_compact operator++(int) {
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iT tmp(*this);
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++(*this);
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return tmp;
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}
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inline bool operator==(const iterator_points_to_compact& that) const {
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return (iter_ == that.iter_);
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}
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inline bool operator!=(const iterator_points_to_compact& that) const {
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return (iter_ != that.iter_);
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}
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inline reference operator*() const { coord_ = get(*iter_, orient_);
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return coord_;
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}
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};
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}
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}
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#endif
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