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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
// This file was modified by Oracle on 2014-2021.
// Modifications copyright (c) 2014-2023 Oracle and/or its affiliates.
// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_GEOMETRY_VIEWS_DETAIL_CLOSED_CLOCKWISE_VIEW_HPP
#define BOOST_GEOMETRY_VIEWS_DETAIL_CLOSED_CLOCKWISE_VIEW_HPP
#include <type_traits>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/iterator.hpp>
#include <boost/geometry/views/closeable_view.hpp>
#include <boost/geometry/views/reversible_view.hpp>
#include <boost/geometry/util/order_as_direction.hpp>
#include <boost/geometry/util/type_traits_std.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail
{
template
<
typename Range,
closure_selector Closure = geometry::closure<Range>::value,
order_selector Order = geometry::point_order<Range>::value
>
struct closed_clockwise_view
{
using closed_view = detail::closed_view<Range const, Closure>;
using view = detail::clockwise_view<closed_view const, Order>;
explicit inline closed_clockwise_view(Range const& r)
: m_view(closed_view(r))
{}
using iterator = typename boost::range_iterator<view const>::type;
using const_iterator = typename boost::range_iterator<view const>::type;
inline const_iterator begin() const { return boost::begin(m_view); }
inline const_iterator end() const { return boost::end(m_view); }
private:
view m_view;
};
} // namespace detail
#endif // DOXYGEN_NO_DETAIL
#ifndef DOXYGEN_NO_TRAITS_SPECIALIZATIONS
namespace traits
{
template <typename Range, closure_selector Closure, order_selector Order>
struct tag<geometry::detail::closed_clockwise_view<Range, Closure, Order> >
: geometry::tag<Range>
{};
template <typename Range, closure_selector Closure, order_selector Order>
struct point_order<geometry::detail::closed_clockwise_view<Range, Closure, Order> >
{
static const order_selector value = clockwise;
};
template <typename Range, closure_selector Closure, order_selector Order>
struct closure<geometry::detail::closed_clockwise_view<Range, Closure, Order> >
{
static const closure_selector value = closed;
};
} // namespace traits
#endif // DOXYGEN_NO_TRAITS_SPECIALIZATIONS
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_VIEWS_DETAIL_CLOSED_CLOCKWISE_VIEW_HPP
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