ceph/src/boost/libs/geometry/include/boost/geometry/views/detail/normalized_view.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
   5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
   6
   7 // This file was modified by Oracle on 2014.
   8 // Modifications copyright (c) 2014 Oracle and/or its affiliates.
   9
  10 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
  11 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
  12
  13 // Use, modification and distribution is subject to the Boost Software License,
  14 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  15 // http://www.boost.org/LICENSE_1_0.txt)
  16
  17 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
  18
  19 #ifndef BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP
  20 #define BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP
  21
  22
  23 #include <boost/range/begin.hpp>
  24 #include <boost/range/end.hpp>
  25 #include <boost/range/iterator.hpp>
  26 #include <boost/mpl/if.hpp>
  27 #include <boost/type_traits/is_const.hpp>
  28 #include <boost/geometry/views/detail/range_type.hpp>
  29 #include <boost/geometry/views/reversible_view.hpp>
  30 #include <boost/geometry/views/closeable_view.hpp>
  31 #include <boost/geometry/util/order_as_direction.hpp>
  32
  33 namespace boost { namespace geometry {
  34
  35
  36 #ifndef DOXYGEN_NO_DETAIL
  37
  38 namespace detail {
  39
  40 template <typename Geometry>
  41 struct normalized_view
  42 {
  43     static const bool is_const = boost::is_const<Geometry>::value;
  44
  45     //typedef typename ring_type<Geometry>::type ring_type;
  46
  47     typedef typename detail::range_type<Geometry>::type range_type;
  48
  49     typedef typename
  50         boost::mpl::if_c
  51             <
  52                 is_const,
  53                 range_type const,
  54                 range_type
  55             >::type range;
  56
  57     typedef typename
  58         reversible_view
  59             <
  60                 range,
  61                 order_as_direction
  62                     <
  63                         geometry::point_order<Geometry>::value
  64                     >::value
  65             >::type reversible_type;
  66
  67     typedef typename
  68         boost::mpl::if_c
  69             <
  70                 is_const,
  71                 reversible_type const,
  72                 reversible_type
  73             >::type reversible;
  74
  75     typedef typename
  76         closeable_view
  77             <
  78                 reversible,
  79                 geometry::closure<Geometry>::value
  80             >::type closeable_type;
  81
  82     typedef typename
  83         boost::mpl::if_c
  84             <
  85                 is_const,
  86                 closeable_type const,
  87                 closeable_type
  88             >::type closeable;
  89
  90     explicit inline normalized_view(range & r)
  91         : m_reversible(r)
  92         , m_closeable(m_reversible)
  93     {}
  94
  95     typedef typename boost::range_iterator<closeable>::type iterator;
  96     typedef typename boost::range_const_iterator<closeable>::type const_iterator;
  97
  98     inline const_iterator begin() const { return boost::begin(m_closeable); }
  99     inline const_iterator end() const { return boost::end(m_closeable); }
 100
 101     inline iterator begin() { return boost::begin(m_closeable); }
 102     inline iterator end() { return boost::end(m_closeable); }
 103
 104 private:
 105     reversible_type m_reversible;
 106     closeable_type m_closeable;
 107 };
 108
 109 } // namespace detail
 110
 111 #endif // DOXYGEN_NO_DETAIL
 112
 113
 114 }} // namespace boost::geometry
 115
 116
 117 #endif // BOOST_GEOMETRY_VIEWS_DETAIL_NORMALIZED_VIEW_HPP