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graph/attribute/card.hh
1 // Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
2 //
3 // This file is part of Olena.
4 //
5 // Olena is free software: you can redistribute it and/or modify it under
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12 // General Public License for more details.
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15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
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17 // As a special exception, you may use this file as part of a free
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19 // instantiate templates or use macros or inline functions from this
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25 
26 #ifndef MLN_GRAPH_ATTRIBUTE_CARD_HH
27 # define MLN_GRAPH_ATTRIBUTE_CARD_HH
28 
33 
34 
35 # include <mln/core/concept/graph.hh>
36 # include <mln/util/array.hh>
37 
38 
39 namespace mln
40 {
41 
42  namespace graph
43  {
44 
45  namespace attribute
46  {
47 
49  struct card_t;
50 
52  extern card_t card;
53 
54 
55 # ifndef MLN_INCLUDE_ONLY
56 
61  struct card_t
62  {
64  typedef util::array<unsigned> result;
65 
66  template <typename G>
67  void init(const Graph<G>& g)
68  {
69  data.resize(0);
70  deja_vu_.resize(exact(g).v_nmax());
71  deja_vu_.fill(false);
72  comp = 0;
73  }
74 
75  bool to_be_treated(unsigned id)
76  { return !deja_vu_[id]; }
77 
78  void new_component_from_vertex(unsigned id)
79  {
80  data.append(1);
81  deja_vu_[id] = true;
82  }
83 
84  void process_vertex(unsigned)
85  {}
86 
87  bool to_be_queued(unsigned id)
88  { return !deja_vu_[id]; }
89 
90  void added_to_queue(unsigned id)
91  {
92  deja_vu_[id] = true;
93  ++data[comp];
94  }
95 
96  void next_component()
97  { ++comp; }
98 
99  void final()
100  {}
101 
102  unsigned comp;
103  util::array<bool> deja_vu_;
105  };
106 
107  card_t card;
108 
109 # endif // ! MLN_INCLUDE_ONLY
110 
111 
112  } // end of namespace mln::graph::attribute
113 
114  } // end of namespace mln::graph
115 
116 } // end of namespace mln
117 
118 
119 #endif // ! MLN_GRAPH_ATTRIBUTE_CARD_HH