// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2014-2020.
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// Modifications copyright (c) 2014-2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is 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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#ifndef BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP
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#define BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP
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#include <type_traits>
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#include <boost/range/begin.hpp>
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#include <boost/range/end.hpp>
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#include <boost/range/iterator.hpp>
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#include <boost/geometry/views/detail/range_type.hpp>
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#include <boost/geometry/views/reversible_view.hpp>
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#include <boost/geometry/views/closeable_view.hpp>
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#include <boost/geometry/util/order_as_direction.hpp>
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namespace boost { namespace geometry {
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail {
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template <typename Geometry>
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struct normalized_view
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{
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static const bool is_const = std::is_const<Geometry>::value;
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//typedef typename ring_type<Geometry>::type ring_type;
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typedef typename detail::range_type<Geometry>::type range_type;
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typedef std::conditional_t
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<
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is_const,
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range_type const,
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range_type
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> range;
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typedef typename
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reversible_view
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<
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range,
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order_as_direction
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<
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geometry::point_order<Geometry>::value
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>::value
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>::type reversible_type;
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typedef std::conditional_t
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<
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is_const,
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reversible_type const,
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reversible_type
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> reversible;
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typedef typename
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closeable_view
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<
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reversible,
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geometry::closure<Geometry>::value
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>::type closeable_type;
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typedef std::conditional_t
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<
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is_const,
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closeable_type const,
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closeable_type
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> closeable;
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explicit inline normalized_view(range & r)
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: m_reversible(r)
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, m_closeable(m_reversible)
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{}
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typedef typename boost::range_iterator<closeable>::type iterator;
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typedef typename boost::range_const_iterator<closeable>::type const_iterator;
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inline const_iterator begin() const { return boost::begin(m_closeable); }
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inline const_iterator end() const { return boost::end(m_closeable); }
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inline iterator begin() { return boost::begin(m_closeable); }
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inline iterator end() { return boost::end(m_closeable); }
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private:
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reversible_type m_reversible;
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closeable_type m_closeable;
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};
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP
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