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core/routine/init.hh
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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25 
26 #ifndef MLN_CORE_ROUTINE_INIT_HH
27 # define MLN_CORE_ROUTINE_INIT_HH
28 
33 
34 # include <mln/tag/init.hh>
35 # include <mln/geom/bbox.hh>
36 # include <mln/border/find.hh>
37 
38 # include <mln/core/routine/init.hxx>
39 
40 
41 namespace mln
42 {
43 
44 
45  // Forward declaration.
46 
47  template <typename Subject, typename T, typename M>
48  void init_(Subject, T& target, const Object<M>& model);
49 
50  // Easy and final versions.
51 
52  template <typename B, typename I>
53  void init_(tag::bbox_t, B& b, const Image<I>& ima);
54 
55  template <typename I>
56  void init_(tag::border_t, unsigned& bdr, const Image<I>& ima);
57 
58  template <typename I>
59  void init_(tag::domain_t, mln_domain(I)& pset, const Image<I>& ima);
60 
61 
62 
63 # ifndef MLN_INCLUDE_ONLY
64 
65 
66  template <typename Subject, typename T, typename M>
67  inline
68  void init_(Subject, T&, const Object<M>&)
69  {
70  struct ERROR err_; // FIXME: Explicit msg.
71  }
72 
73  // Easy impl.
74 
75  template <typename B, typename I>
76  inline
77  void init_(tag::bbox_t, B& b, const Image<I>& ima)
78  {
79  b = geom::bbox(exact(ima).domain());
80  }
81 
82  template <typename I>
83  inline
84  void init_(tag::border_t, unsigned& bdr, const Image<I>& ima)
85  {
86  // 'Find' means that we want a value; this is not always the
87  // border thickness of 'ima', but it can be the thickness of
88  // a morphed / underlying image over which ima is constructed.
89  bdr = border::find(ima);
90  }
91 
92  template <typename I>
93  inline
94  void init_(tag::domain_t, mln_domain(I)& pset, const Image<I>& ima)
95  {
96  pset = exact(ima).domain();
97  }
98 
99 
100 # endif // ! MLN_INCLUDE_ONLY
101 
102 } // end of namespace mln
103 
104 
105 #endif // ! MLN_CORE_ROUTINE_INIT_HH