[12] | 1 | // Boost.Signals library |
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| 2 | |
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| 3 | // Copyright Douglas Gregor 2001-2004. Use, modification and |
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| 4 | // distribution is subject to the Boost Software License, Version |
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| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | |
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| 8 | // For more information, see http://www.boost.org/libs/signals |
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| 9 | |
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| 10 | #ifndef BOOST_SIGNAL_HPP |
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| 11 | #define BOOST_SIGNAL_HPP |
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| 12 | |
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| 13 | #define BOOST_SIGNALS_MAX_ARGS 10 |
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| 14 | |
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| 15 | #include <boost/config.hpp> |
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| 16 | #include <boost/type_traits/function_traits.hpp> |
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| 17 | #include <boost/signals/signal0.hpp> |
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| 18 | #include <boost/signals/signal1.hpp> |
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| 19 | #include <boost/signals/signal2.hpp> |
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| 20 | #include <boost/signals/signal3.hpp> |
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| 21 | #include <boost/signals/signal4.hpp> |
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| 22 | #include <boost/signals/signal5.hpp> |
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| 23 | #include <boost/signals/signal6.hpp> |
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| 24 | #include <boost/signals/signal7.hpp> |
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| 25 | #include <boost/signals/signal8.hpp> |
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| 26 | #include <boost/signals/signal9.hpp> |
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| 27 | #include <boost/signals/signal10.hpp> |
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| 28 | #include <boost/function.hpp> |
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| 29 | |
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| 30 | #ifdef BOOST_HAS_ABI_HEADERS |
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| 31 | # include BOOST_ABI_PREFIX |
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| 32 | #endif |
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| 33 | |
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| 34 | namespace boost { |
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| 35 | #ifndef BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX |
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| 36 | namespace BOOST_SIGNALS_NAMESPACE { |
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| 37 | namespace detail { |
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| 38 | template<int Arity, |
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| 39 | typename Signature, |
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| 40 | typename Combiner, |
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| 41 | typename Group, |
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| 42 | typename GroupCompare, |
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| 43 | typename SlotFunction> |
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| 44 | class real_get_signal_impl; |
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| 45 | |
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| 46 | template<typename Signature, |
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| 47 | typename Combiner, |
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| 48 | typename Group, |
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| 49 | typename GroupCompare, |
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| 50 | typename SlotFunction> |
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| 51 | class real_get_signal_impl<0, Signature, Combiner, Group, GroupCompare, |
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| 52 | SlotFunction> |
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| 53 | { |
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| 54 | typedef function_traits<Signature> traits; |
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| 55 | |
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| 56 | public: |
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| 57 | typedef signal0<typename traits::result_type, |
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| 58 | Combiner, |
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| 59 | Group, |
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| 60 | GroupCompare, |
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| 61 | SlotFunction> type; |
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| 62 | }; |
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| 63 | |
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| 64 | template<typename Signature, |
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| 65 | typename Combiner, |
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| 66 | typename Group, |
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| 67 | typename GroupCompare, |
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| 68 | typename SlotFunction> |
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| 69 | class real_get_signal_impl<1, Signature, Combiner, Group, GroupCompare, |
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| 70 | SlotFunction> |
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| 71 | { |
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| 72 | typedef function_traits<Signature> traits; |
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| 73 | |
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| 74 | public: |
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| 75 | typedef signal1<typename traits::result_type, |
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| 76 | typename traits::arg1_type, |
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| 77 | Combiner, |
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| 78 | Group, |
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| 79 | GroupCompare, |
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| 80 | SlotFunction> type; |
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| 81 | }; |
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| 82 | |
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| 83 | template<typename Signature, |
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| 84 | typename Combiner, |
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| 85 | typename Group, |
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| 86 | typename GroupCompare, |
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| 87 | typename SlotFunction> |
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| 88 | class real_get_signal_impl<2, Signature, Combiner, Group, GroupCompare, |
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| 89 | SlotFunction> |
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| 90 | { |
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| 91 | typedef function_traits<Signature> traits; |
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| 92 | |
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| 93 | public: |
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| 94 | typedef signal2<typename traits::result_type, |
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| 95 | typename traits::arg1_type, |
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| 96 | typename traits::arg2_type, |
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| 97 | Combiner, |
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| 98 | Group, |
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| 99 | GroupCompare, |
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| 100 | SlotFunction> type; |
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| 101 | }; |
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| 102 | |
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| 103 | template<typename Signature, |
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| 104 | typename Combiner, |
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| 105 | typename Group, |
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| 106 | typename GroupCompare, |
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| 107 | typename SlotFunction> |
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| 108 | class real_get_signal_impl<3, Signature, Combiner, Group, GroupCompare, |
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| 109 | SlotFunction> |
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| 110 | { |
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| 111 | typedef function_traits<Signature> traits; |
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| 112 | |
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| 113 | public: |
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| 114 | typedef signal3<typename traits::result_type, |
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| 115 | typename traits::arg1_type, |
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| 116 | typename traits::arg2_type, |
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| 117 | typename traits::arg3_type, |
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| 118 | Combiner, |
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| 119 | Group, |
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| 120 | GroupCompare, |
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| 121 | SlotFunction> type; |
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| 122 | }; |
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| 123 | |
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| 124 | template<typename Signature, |
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| 125 | typename Combiner, |
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| 126 | typename Group, |
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| 127 | typename GroupCompare, |
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| 128 | typename SlotFunction> |
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| 129 | class real_get_signal_impl<4, Signature, Combiner, Group, GroupCompare, |
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| 130 | SlotFunction> |
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| 131 | { |
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| 132 | typedef function_traits<Signature> traits; |
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| 133 | |
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| 134 | public: |
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| 135 | typedef signal4<typename traits::result_type, |
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| 136 | typename traits::arg1_type, |
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| 137 | typename traits::arg2_type, |
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| 138 | typename traits::arg3_type, |
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| 139 | typename traits::arg4_type, |
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| 140 | Combiner, |
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| 141 | Group, |
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| 142 | GroupCompare, |
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| 143 | SlotFunction> type; |
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| 144 | }; |
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| 145 | |
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| 146 | template<typename Signature, |
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| 147 | typename Combiner, |
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| 148 | typename Group, |
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| 149 | typename GroupCompare, |
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| 150 | typename SlotFunction> |
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| 151 | class real_get_signal_impl<5, Signature, Combiner, Group, GroupCompare, |
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| 152 | SlotFunction> |
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| 153 | { |
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| 154 | typedef function_traits<Signature> traits; |
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| 155 | |
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| 156 | public: |
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| 157 | typedef signal5<typename traits::result_type, |
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| 158 | typename traits::arg1_type, |
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| 159 | typename traits::arg2_type, |
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| 160 | typename traits::arg3_type, |
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| 161 | typename traits::arg4_type, |
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| 162 | typename traits::arg5_type, |
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| 163 | Combiner, |
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| 164 | Group, |
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| 165 | GroupCompare, |
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| 166 | SlotFunction> type; |
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| 167 | }; |
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| 168 | |
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| 169 | template<typename Signature, |
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| 170 | typename Combiner, |
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| 171 | typename Group, |
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| 172 | typename GroupCompare, |
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| 173 | typename SlotFunction> |
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| 174 | class real_get_signal_impl<6, Signature, Combiner, Group, GroupCompare, |
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| 175 | SlotFunction> |
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| 176 | { |
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| 177 | typedef function_traits<Signature> traits; |
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| 178 | |
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| 179 | public: |
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| 180 | typedef signal6<typename traits::result_type, |
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| 181 | typename traits::arg1_type, |
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| 182 | typename traits::arg2_type, |
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| 183 | typename traits::arg3_type, |
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| 184 | typename traits::arg4_type, |
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| 185 | typename traits::arg5_type, |
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| 186 | typename traits::arg6_type, |
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| 187 | Combiner, |
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| 188 | Group, |
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| 189 | GroupCompare, |
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| 190 | SlotFunction> type; |
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| 191 | }; |
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| 192 | |
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| 193 | template<typename Signature, |
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| 194 | typename Combiner, |
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| 195 | typename Group, |
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| 196 | typename GroupCompare, |
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| 197 | typename SlotFunction> |
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| 198 | class real_get_signal_impl<7, Signature, Combiner, Group, GroupCompare, |
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| 199 | SlotFunction> |
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| 200 | { |
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| 201 | typedef function_traits<Signature> traits; |
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| 202 | |
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| 203 | public: |
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| 204 | typedef signal7<typename traits::result_type, |
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| 205 | typename traits::arg1_type, |
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| 206 | typename traits::arg2_type, |
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| 207 | typename traits::arg3_type, |
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| 208 | typename traits::arg4_type, |
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| 209 | typename traits::arg5_type, |
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| 210 | typename traits::arg6_type, |
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| 211 | typename traits::arg7_type, |
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| 212 | Combiner, |
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| 213 | Group, |
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| 214 | GroupCompare, |
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| 215 | SlotFunction> type; |
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| 216 | }; |
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| 217 | |
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| 218 | template<typename Signature, |
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| 219 | typename Combiner, |
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| 220 | typename Group, |
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| 221 | typename GroupCompare, |
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| 222 | typename SlotFunction> |
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| 223 | class real_get_signal_impl<8, Signature, Combiner, Group, GroupCompare, |
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| 224 | SlotFunction> |
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| 225 | { |
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| 226 | typedef function_traits<Signature> traits; |
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| 227 | |
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| 228 | public: |
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| 229 | typedef signal8<typename traits::result_type, |
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| 230 | typename traits::arg1_type, |
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| 231 | typename traits::arg2_type, |
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| 232 | typename traits::arg3_type, |
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| 233 | typename traits::arg4_type, |
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| 234 | typename traits::arg5_type, |
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| 235 | typename traits::arg6_type, |
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| 236 | typename traits::arg7_type, |
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| 237 | typename traits::arg8_type, |
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| 238 | Combiner, |
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| 239 | Group, |
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| 240 | GroupCompare, |
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| 241 | SlotFunction> type; |
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| 242 | }; |
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| 243 | |
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| 244 | template<typename Signature, |
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| 245 | typename Combiner, |
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| 246 | typename Group, |
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| 247 | typename GroupCompare, |
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| 248 | typename SlotFunction> |
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| 249 | class real_get_signal_impl<9, Signature, Combiner, Group, GroupCompare, |
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| 250 | SlotFunction> |
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| 251 | { |
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| 252 | typedef function_traits<Signature> traits; |
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| 253 | |
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| 254 | public: |
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| 255 | typedef signal9<typename traits::result_type, |
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| 256 | typename traits::arg1_type, |
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| 257 | typename traits::arg2_type, |
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| 258 | typename traits::arg3_type, |
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| 259 | typename traits::arg4_type, |
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| 260 | typename traits::arg5_type, |
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| 261 | typename traits::arg6_type, |
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| 262 | typename traits::arg7_type, |
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| 263 | typename traits::arg8_type, |
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| 264 | typename traits::arg9_type, |
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| 265 | Combiner, |
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| 266 | Group, |
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| 267 | GroupCompare, |
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| 268 | SlotFunction> type; |
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| 269 | }; |
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| 270 | |
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| 271 | template<typename Signature, |
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| 272 | typename Combiner, |
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| 273 | typename Group, |
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| 274 | typename GroupCompare, |
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| 275 | typename SlotFunction> |
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| 276 | class real_get_signal_impl<10, Signature, Combiner, Group, GroupCompare, |
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| 277 | SlotFunction> |
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| 278 | { |
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| 279 | typedef function_traits<Signature> traits; |
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| 280 | |
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| 281 | public: |
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| 282 | typedef signal10<typename traits::result_type, |
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| 283 | typename traits::arg1_type, |
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| 284 | typename traits::arg2_type, |
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| 285 | typename traits::arg3_type, |
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| 286 | typename traits::arg4_type, |
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| 287 | typename traits::arg5_type, |
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| 288 | typename traits::arg6_type, |
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| 289 | typename traits::arg7_type, |
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| 290 | typename traits::arg8_type, |
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| 291 | typename traits::arg9_type, |
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| 292 | typename traits::arg10_type, |
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| 293 | Combiner, |
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| 294 | Group, |
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| 295 | GroupCompare, |
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| 296 | SlotFunction> type; |
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| 297 | }; |
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| 298 | |
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| 299 | template<typename Signature, |
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| 300 | typename Combiner, |
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| 301 | typename Group, |
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| 302 | typename GroupCompare, |
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| 303 | typename SlotFunction> |
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| 304 | struct get_signal_impl : |
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| 305 | public real_get_signal_impl<(function_traits<Signature>::arity), |
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| 306 | Signature, |
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| 307 | Combiner, |
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| 308 | Group, |
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| 309 | GroupCompare, |
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| 310 | SlotFunction> |
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| 311 | { |
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| 312 | }; |
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| 313 | |
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| 314 | } // end namespace detail |
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| 315 | } // end namespace BOOST_SIGNALS_NAMESPACE |
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| 316 | |
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| 317 | // Very lightweight wrapper around the signalN classes that allows signals to |
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| 318 | // be created where the number of arguments does not need to be part of the |
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| 319 | // class name. |
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| 320 | template< |
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| 321 | typename Signature, // function type R (T1, T2, ..., TN) |
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| 322 | typename Combiner = last_value<typename function_traits<Signature>::result_type>, |
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| 323 | typename Group = int, |
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| 324 | typename GroupCompare = std::less<Group>, |
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| 325 | typename SlotFunction = function<Signature> |
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| 326 | > |
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| 327 | class signal : |
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| 328 | public BOOST_SIGNALS_NAMESPACE::detail::get_signal_impl<Signature, |
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| 329 | Combiner, |
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| 330 | Group, |
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| 331 | GroupCompare, |
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| 332 | SlotFunction>::type |
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| 333 | { |
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| 334 | typedef typename BOOST_SIGNALS_NAMESPACE::detail::get_signal_impl< |
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| 335 | Signature, |
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| 336 | Combiner, |
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| 337 | Group, |
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| 338 | GroupCompare, |
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| 339 | SlotFunction>::type base_type; |
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| 340 | |
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| 341 | public: |
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| 342 | explicit signal(const Combiner& combiner = Combiner(), |
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| 343 | const GroupCompare& group_compare = GroupCompare()) : |
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| 344 | base_type(combiner, group_compare) |
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| 345 | { |
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| 346 | } |
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| 347 | }; |
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| 348 | #endif // ndef BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX |
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| 349 | |
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| 350 | } // end namespace boost |
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| 351 | |
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| 352 | #ifdef BOOST_HAS_ABI_HEADERS |
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| 353 | # include BOOST_ABI_SUFFIX |
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| 354 | #endif |
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| 355 | |
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| 356 | #endif // BOOST_SIGNAL_HPP |
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