src/FbTk/Slot.hh (raw)
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// Slot.hh for FbTk, Fluxbox Toolkit // Copyright (c) 2008 Henrik Kinnunen (fluxgen at fluxbox dot org) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. #ifndef FBTK_SLOT_HH #define FBTK_SLOT_HH #include "RefCount.hh" namespace FbTk { /// \namespace Implementation details for signals, do not use anything in this namespace namespace SigImpl { struct EmptyArg {}; class SlotBase { public: virtual ~SlotBase() {} }; template<typename Arg1, typename Arg2, typename Arg3> class SlotTemplate: public SlotBase { public: virtual void operator()(Arg1, Arg2, Arg3) = 0; }; template<typename Arg1, typename Arg2, typename Arg3, typename Functor> class Slot: public SlotTemplate<Arg1, Arg2, Arg3> { public: virtual void operator()(Arg1 arg1, Arg2 arg2, Arg3 arg3) { m_functor(arg1, arg2, arg3); } Slot(Functor functor) : m_functor(functor) {} private: Functor m_functor; }; // specialization for two arguments template<typename Arg1, typename Arg2, typename Functor> class Slot<Arg1, Arg2, EmptyArg, Functor>: public SlotTemplate<Arg1, Arg2, EmptyArg> { public: virtual void operator()(Arg1 arg1, Arg2 arg2, EmptyArg) { m_functor(arg1, arg2); } Slot(Functor functor) : m_functor(functor) {} private: Functor m_functor; }; // specialization for one argument template<typename Arg1, typename Functor> class Slot<Arg1, EmptyArg, EmptyArg, Functor>: public SlotTemplate<Arg1, EmptyArg, EmptyArg> { public: virtual void operator()(Arg1 arg1, EmptyArg, EmptyArg) { m_functor(arg1); } Slot(Functor functor) : m_functor(functor) {} private: Functor m_functor; }; // specialization for no arguments template<typename Functor> class Slot<EmptyArg, EmptyArg, EmptyArg, Functor>: public SlotTemplate<EmptyArg, EmptyArg, EmptyArg> { public: virtual void operator()(EmptyArg, EmptyArg, EmptyArg) { m_functor(); } Slot(Functor functor) : m_functor(functor) {} private: Functor m_functor; }; } // namespace SigImpl } // namespace FbTk #endif // FBTK_SLOT_H |