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border/get.hh
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25 
26 #ifndef MLN_BORDER_GET_HH
27 # define MLN_BORDER_GET_HH
28 
32 
33 # include <mln/trait/images.hh>
34 # include <mln/trace/all.hh>
35 
36 namespace mln
37 {
38 
39  namespace border
40  {
41 
49  template <typename I>
50  unsigned get(const Image<I>& ima);
51 
52 
53 # ifndef MLN_INCLUDE_ONLY
54 
55  namespace impl
56  {
57 
58  template <typename I>
59  inline
60  unsigned get_(trait::image::ext_domain::some, trait::image::category::primary,
61  const I& ima)
62  {
63  return ima.border();
64  }
65 
66  template <typename I>
67  inline
68  unsigned get_(trait::image::ext_domain::some, trait::image::category::morpher,
69  const I& ima)
70  {
71  return border::get(*ima.delegatee_());
72  }
73 
74 
75  template <typename I>
76  inline
77  unsigned get_(trait::image::ext_domain::none, trait::image::category::any,
78  const I&)
79  {
80  return 0;
81  }
82 
83  } // end of namespace mln::border::impl
84 
85 
86  // Facade.
87 
88  template <typename I>
89  inline
90  unsigned get(const Image<I>& ima)
91  {
92  trace::entering("border::get");
93 
94  mln_precondition(exact(ima).is_valid());
95  unsigned res = border::impl::get_(mln_trait_image_ext_domain(I)(),
96  mln_trait_image_category(I)(),
97  exact(ima));
98 
99  trace::exiting("border::get");
100  return res;
101  }
102 
103 # endif // ! MLN_INCLUDE_ONLY
104 
105  } // end of namespace mln::border
106 
107 } // end of namespace mln
108 
109 
110 #endif // ! MLN_BORDER_GET_HH