Milena (Olena)  User documentation 2.0a Id
 All Classes Namespaces Functions Variables Typedefs Enumerator Groups Pages
fun/meta/hue.hh
1 // Copyright (C) 2007, 2008, 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
6 // the terms of the GNU General Public License as published by the Free
7 // Software Foundation, version 2 of the License.
8 //
9 // Olena is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 // General Public License for more details.
13 //
14 // You should have received a copy of the GNU General Public License
15 // along with Olena. If not, see <http://www.gnu.org/licenses/>.
16 //
17 // As a special exception, you may use this file as part of a free
18 // software project without restriction. Specifically, if other files
19 // instantiate templates or use macros or inline functions from this
20 // file, or you compile this file and link it with other files to produce
21 // an executable, this file does not by itself cause the resulting
22 // executable to be covered by the GNU General Public License. This
23 // exception does not however invalidate any other reasons why the
24 // executable file might be covered by the GNU General Public License.
25 
26 #ifndef MLN_FUN_META_HUE_HH
27 # define MLN_FUN_META_HUE_HH
28 
32 
33 # include <mln/value/hsl.hh>
34 # include <mln/value/hsi.hh>
35 # include <mln/fun/meta/impl.hh>
36 
37 namespace mln
38 {
39 
40  namespace meta
41  {
42 
43  template <class H>
44  struct hue : impl< hue<H> >
45  {
46  typedef H value;
47  };
48 
49  } // end of namespace mln::meta
50 
51  template <class H, class S, class I>
52  struct function< meta::hue< value::hsi_<H, S, I> > >
53  : public Function_v2v<function< meta::hue < value::hsi_<H, S, I> > > >
54  {
55  typedef value::hsi_<H, S, I> value;
56 
57  typedef H result;
58  H read(const value& h);
59 
60  typedef H& lresult;
61  H& write(value& h);
62  };
63 
64  template <class H, class S, class L>
65  struct function< meta::hue< value::hsl_<H, S, L> > >
66  : public Function_v2v<function< meta::hue < value::hsl_<H, S, L> > > >
67  {
68  typedef value::hsl_<H, S, L> value;
69 
70  typedef H result;
71  H read(const value& h);
72 
73  typedef H& lresult;
74  H& write(value& h);
75  };
76 
77 
78 # ifndef MLN_INCLUDE_ONLY
79 
80  template <class H, class S, class I>
81  inline
82  H
83  function< meta::hue< value::hsi_<H, S, I> > >::read(const value& h)
84  {
85  return h.hue();
86  }
87 
88  template <class H, class S, class I>
89  inline
90  H&
91  function< meta::hue< value::hsi_<H, S, I> > >::write(value& h)
92  {
93  return h.hue();
94  }
95 
96 
97  template <class H, class S, class L>
98  inline
99  H
100  function< meta::hue< value::hsl_<H, S, L> > >::read(const value& h)
101  {
102  return h.hue();
103  }
104 
105  template <class H, class S, class L>
106  inline
107  H&
108  function< meta::hue< value::hsl_<H, S, L> > >::write(value& h)
109  {
110  return h.hue();
111  }
112 
113 
114 # endif // ! MLN_INCLUDE_ONLY
115 
116 
117 } // end of namespace mln
118 
119 #endif // ! MLN_FUN_META_HUE_HH