ceph/src/boost/boost/geometry/srs/projections/impl/factory_entry.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   4
   5 // This file was modified by Oracle on 2017.
   6 // Modifications copyright (c) 2017, Oracle and/or its affiliates.
   7 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
   8
   9 // Use, modification and distribution is subject to the Boost Software License,
  10 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12
  13 #ifndef BOOST_GEOMETRY_PROJECTIONS_IMPL_FACTORY_ENTRY_HPP
  14 #define BOOST_GEOMETRY_PROJECTIONS_IMPL_FACTORY_ENTRY_HPP
  15
  16 #include <string>
  17
  18 #include <boost/geometry/srs/projections/impl/base_dynamic.hpp>
  19
  20 namespace boost { namespace geometry { namespace projections
  21 {
  22
  23 namespace detail
  24 {
  25
  26 // forward declaration needed by some projections
  27 template <typename CT, typename Parameters>
  28 class factory;
  29
  30 template <typename CT, typename P>
  31 class factory_entry
  32 {
  33 public:
  34
  35     virtual ~factory_entry() {}
  36     virtual base_v<CT, P>* create_new(P const& par) const = 0;
  37 };
  38
  39 template <typename CT, typename P>
  40 class base_factory
  41 {
  42 public:
  43
  44     virtual ~base_factory() {}
  45     virtual void add_to_factory(std::string const& name, factory_entry<CT, P>* sub) = 0;
  46 };
  47
  48 } // namespace detail
  49 }}} // namespace boost::geometry::projections
  50
  51 #endif // BOOST_GEOMETRY_PROJECTIONS_IMPL_FACTORY_ENTRY_HPP