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Merged headers that define what an event handler is
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Vraiment
parent
f6695239d5
commit
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@ -161,8 +161,6 @@ SET(LIBRARY_HEADERS
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SDL2pp/Window.hh
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SDL2pp/Private/EventDispatching.hh
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SDL2pp/Private/EventHandler.hh
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SDL2pp/Private/EventHandlerFunctor.hh
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SDL2pp/Private/EventHandlerObject.hh
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SDL2pp/Private/EventTypeFilters.hh
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SDL2pp/Private/Utility.hh
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)
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@ -22,10 +22,9 @@
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#ifndef SDL2PP_PRIVATE_EVENTHANDLER_HH
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#define SDL2PP_PRIVATE_EVENTHANDLER_HH
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#include <SDL2pp/Private/EventHandlerFunctor.hh>
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#include <SDL2pp/Private/EventHandlerObject.hh>
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#include <SDL2pp/Private/Utility.hh>
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#include <functional>
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#include <tuple>
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#include <type_traits>
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@ -66,6 +65,50 @@ namespace Private {
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SDL_WindowEvent
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>;
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/*
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* Templated class to identify a class that is not an event handler functor.
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*/
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template <typename, typename, typename = void>
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struct IsEventHandlerFunctor : std::false_type { };
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/*
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* Templated class to identify a class that is an event handler functor, the
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* way this is done is by verifying if the functor is assignable to the
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* expected signature.
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*/
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template <typename EventHandlerType, typename EventType>
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struct IsEventHandlerFunctor<
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EventHandlerType,
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EventType,
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typename std::enable_if<
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std::is_convertible<EventHandlerType, std::function<void(EventType)>>::value
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>::type
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> : std::true_type { };
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/*
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* Templated class to identify a class that is not an event handler object.
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*/
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template <typename, typename, typename = void>
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struct IsEventHandlerObject : std::false_type { };
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/*
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* Templated class to identify a class that is an event handler object, the
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* way this is done is by verifying that an instance of EventHandlerType has
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* the "HandleEvent" member function which received a "EventType" and
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* returns void.
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*/
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template <typename EventHandlerType, typename EventType>
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struct IsEventHandlerObject<
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EventHandlerType,
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EventType,
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typename std::enable_if<
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std::is_same<
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decltype(std::declval<EventHandlerType>().HandleEvent(std::declval<EventType>())),
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void
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>::value
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>::type
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> : std::true_type { };
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/*
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* Templated class to identify a class that is not an event handler.
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*/
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@ -1,55 +0,0 @@
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/*
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libSDL2pp - C++11 bindings/wrapper for SDL2
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Copyright (C) 2017 Vraiment <jemc44@gmail.com>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SDL2PP_PRIVATE_EVENTHANDLERFUNCTOR_HH
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#define SDL2PP_PRIVATE_EVENTHANDLERFUNCTOR_HH
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#include <functional>
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#include <type_traits>
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namespace SDL2pp {
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/*
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* This is code not to be used directly by users of SDL2pp.
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*/
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namespace Private {
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/*
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* Templated class to identify a class that is not an event handler functor.
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*/
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template <typename, typename, typename = void>
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struct IsEventHandlerFunctor : std::false_type { };
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/*
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* Templated class to identify a class that is an event handler functor, the
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* way this is done is by verifying if the functor is assignable to the
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* expected signature.
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*/
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template <typename EventHandlerType, typename EventType>
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struct IsEventHandlerFunctor<
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EventHandlerType,
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EventType,
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typename std::enable_if<
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std::is_convertible<EventHandlerType, std::function<void(EventType)>>::value
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>::type
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> : std::true_type { };
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}
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}
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#endif
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@ -1,58 +0,0 @@
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/*
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libSDL2pp - C++11 bindings/wrapper for SDL2
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Copyright (C) 2017 Vraiment <jemc44@gmail.com>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef SDL2PP_PRIVATE_EVENTHANDLEROBJECT_HH
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#define SDL2PP_PRIVATE_EVENTHANDLEROBJECT_HH
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#include <type_traits>
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namespace SDL2pp {
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/*
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* This is code not to be used directly by users of SDL2pp.
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*/
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namespace Private {
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/*
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* Templated class to identify a class that is not an event handler object.
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*/
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template <typename, typename, typename = void>
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struct IsEventHandlerObject : std::false_type { };
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/*
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* Templated class to identify a class that is an event handler object, the
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* way this is done is by verifying that an instance of EventHandlerType has
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* the "HandleEvent" member function which received a "EventType" and
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* returns void.
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*/
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template <typename EventHandlerType, typename EventType>
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struct IsEventHandlerObject<
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EventHandlerType,
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EventType,
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typename std::enable_if<
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std::is_same<
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decltype(std::declval<EventHandlerType>().HandleEvent(std::declval<EventType>())),
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void
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>::value
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>::type
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> : std::true_type { };
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}
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}
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#endif
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