Added dispatching for all events

SDL2pp/Private/EventDispatching.hh

@@ -27,30 +27,371 @@
 #include <type_traits>
 
 #include <SDL_events.h>
-
+#include <SDL_version.h>
-#include <iostream>
-using namespace std;
 
 namespace SDL2pp {
 namespace Private
 {
+	template <typename EventHandler, typename EventType>
+	void DispatchEventToObject(const EventType &event, EventHandler&& eventHandler) {
+		eventHandler.HandleEvent(event);
+	}
+
+	template <typename EventHandler, typename EventType>
+	void DispatchEventToFunctor(const EventType &event, EventHandler&& eventHandler) {
+		eventHandler(event);
+	}
+	
 	template <typename EventHandler>
 	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_Event>::value>::type
 	{
-		eventHandler.HandleEvent(event);
+		DispatchEventToObject(event, eventHandler);
 	}
 	
 	template <typename EventHandler>
 	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_Event>::value>::type
 	{
-		eventHandler(event);
+		DispatchEventToFunctor(event, eventHandler);
+	}
+	
+#if SDL_VERSION_ATLEAST(2, 0, 5)
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_AudioDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_AUDIODEVICEADDED || event.type == SDL_AUDIODEVICEREMOVED)
+			DispatchEventToObject(event.type, eventHandler);
 	}
 	
 	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_AudioDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_AUDIODEVICEADDED || event.type == SDL_AUDIODEVICEREMOVED)
+			DispatchEventToFunctor(event.type, eventHandler);
+	}
+#endif
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_ControllerAxisEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERAXISMOTION)
+			DispatchEventToObject(event.caxis, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_ControllerAxisEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERAXISMOTION)
+			DispatchEventToFunctor(event.caxis, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_ControllerButtonEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERBUTTONDOWN || event.type == SDL_CONTROLLERBUTTONDOWN)
+			DispatchEventToObject(event.cbutton, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_ControllerButtonEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERBUTTONDOWN || event.type == SDL_CONTROLLERBUTTONDOWN)
+			DispatchEventToFunctor(event.cbutton, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_ControllerDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERDEVICEADDED || event.type == SDL_CONTROLLERDEVICEREMOVED || event.type == SDL_CONTROLLERDEVICEREMAPPED)
+			DispatchEventToObject(event.cdevice, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_ControllerDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_CONTROLLERDEVICEADDED || event.type == SDL_CONTROLLERDEVICEREMOVED || event.type == SDL_CONTROLLERDEVICEREMAPPED)
+			DispatchEventToFunctor(event.cdevice, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_DollarGestureEvent>::value>::type
+	{
+		if (event.type == SDL_DOLLARGESTURE || event.type == SDL_DOLLARRECORD)
+			DispatchEventToObject(event.dgesture, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_DollarGestureEvent>::value>::type
+	{
+		if (event.type == SDL_DOLLARGESTURE || event.type == SDL_DOLLARRECORD)
+			DispatchEventToFunctor(event.dgesture, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_DropEvent>::value>::type
+	{
+		if (event.type == SDL_DROPFILE || event.type == SDL_DROPTEXT
+#if SDL_VERSION_ATLEAST(2, 0, 5)
+			|| event.type == SDL_DROPBEGIN || event.type == SDL_DROPCOMPLETE
+#endif
+		)
+			DispatchEventToObject(event.drop, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_DropEvent>::value>::type
+	{
+		if (event.type == SDL_DROPFILE || event.type == SDL_DROPTEXT
+#if SDL_VERSION_ATLEAST(2, 0, 5)
+			|| event.type == SDL_DROPBEGIN || event.type == SDL_DROPCOMPLETE
+#endif
+		)
+			DispatchEventToObject(event.drop, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_JoyAxisEvent>::value>::type
+	{
+		if (event.type == SDL_JOYAXISMOTION)
+			DispatchEventToObject(event.jaxis, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_JoyAxisEvent>::value>::type
+	{
+		if (event.type == SDL_JOYAXISMOTION)
+			DispatchEventToFunctor(event.jaxis, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_JoyBallEvent>::value>::type
+	{
+		if (event.type == SDL_JOYBALLMOTION)
+			DispatchEventToObject(event.jball, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_JoyBallEvent>::value>::type
+	{
+		if (event.type == SDL_JOYBALLMOTION)
+			DispatchEventToFunctor(event.jball, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_JoyButtonEvent>::value>::type
+	{
+		if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_JOYBUTTONUP)
+			DispatchEventToObject(event.jbutton, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_JoyButtonEvent>::value>::type
+	{
+		if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_JOYBUTTONUP)
+			DispatchEventToFunctor(event.jbutton, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_JoyDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_JOYDEVICEADDED || event.type == SDL_JOYDEVICEREMOVED)
+			DispatchEventToObject(event.jdevice, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_JoyDeviceEvent>::value>::type
+	{
+		if (event.type == SDL_JOYDEVICEADDED || event.type == SDL_JOYDEVICEREMOVED)
+			DispatchEventToFunctor(event.jdevice, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_JoyHatEvent>::value>::type
+	{
+		if (event.type == SDL_JOYHATMOTION)
+			DispatchEventToObject(event.jhat, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_JoyHatEvent>::value>::type
+	{
+		if (event.type == SDL_JOYHATMOTION)
+			DispatchEventToFunctor(event.jhat, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_KeyboardEvent>::value>::type
+	{
+		if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP)
+			DispatchEventToObject(event.key, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_KeyboardEvent>::value>::type
+	{
+		if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP)
+			DispatchEventToFunctor(event.key, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_MouseButtonEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEBUTTONDOWN || event.type == SDL_MOUSEBUTTONUP)
+			DispatchEventToObject(event.button, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_MouseButtonEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEBUTTONDOWN || event.type == SDL_MOUSEBUTTONUP)
+			DispatchEventToFunctor(event.button, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_MouseMotionEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEMOTION)
+			DispatchEventToObject(event.motion, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_MouseMotionEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEMOTION)
+			DispatchEventToFunctor(event.motion, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_MouseWheelEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEWHEEL)
+			DispatchEventToObject(event.wheel, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_MouseWheelEvent>::value>::type
+	{
+		if (event.type == SDL_MOUSEWHEEL)
+			DispatchEventToFunctor(event.wheel, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_MultiGestureEvent>::value>::type
+	{
+		if (event.type == SDL_MULTIGESTURE)
+			DispatchEventToObject(event.mgesture, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_MultiGestureEvent>::value>::type
+	{
+		if (event.type == SDL_MULTIGESTURE)
+			DispatchEventToFunctor(event.mgesture, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_QuitEvent>::value>::type
+	{
+		if (event.type == SDL_QUIT)
+			DispatchEventToObject(event.quit, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_QuitEvent>::value>::type
+	{
+		if (event.type == SDL_QUIT)
+			DispatchEventToFunctor(event.quit, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_SysWMEvent>::value>::type
+	{
+		if (event.type == SDL_SYSWMEVENT)
+			DispatchEventToObject(event.syswm, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_SysWMEvent>::value>::type
+	{
+		if (event.type == SDL_SYSWMEVENT)
+			DispatchEventToFunctor(event.syswm, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_TextEditingEvent>::value>::type
+	{
+		if (event.type == SDL_TEXTEDITING)
+			DispatchEventToObject(event.edit, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_TextEditingEvent>::value>::type
+	{
+		if (event.type == SDL_TEXTEDITING)
+			DispatchEventToFunctor(event.edit, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_TextInputEvent>::value>::type
+	{
+		if (event.type == SDL_TEXTINPUT)
+			DispatchEventToObject(event.text, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_TextInputEvent>::value>::type
+	{
+		if (event.type == SDL_TEXTINPUT)
+			DispatchEventToFunctor(event.text, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_TouchFingerEvent>::value>::type
+	{
+		if (event.type == SDL_FINGERMOTION || event.type == SDL_FINGERDOWN || event.type == SDL_FINGERUP)
+			DispatchEventToObject(event.tfinger, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_TouchFingerEvent>::value>::type
+	{
+		if (event.type == SDL_FINGERMOTION || event.type == SDL_FINGERDOWN || event.type == SDL_FINGERUP)
+			DispatchEventToFunctor(event.tfinger, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_UserEvent>::value>::type
+	{
+		if (event.type == SDL_USEREVENT)
+			DispatchEventToObject(event.user, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_UserEvent>::value>::type
+	{
+		if (event.type == SDL_USEREVENT)
+			DispatchEventToFunctor(event.user, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerObject<EventHandler, SDL_WindowEvent>::value>::type
+	{
+		if (event.type == SDL_WINDOWEVENT)
+		DispatchEventToObject(event.window, eventHandler);
+	}
+	
+	template <typename EventHandler>
+	auto DispatchSpecificEvent(const SDL_Event &event, EventHandler&& eventHandler) -> typename std::enable_if<IsEventHandlerFunctor<EventHandler, SDL_WindowEvent>::value>::type
+	{
+		if (event.type == SDL_WINDOWEVENT)
+			DispatchEventToFunctor(event.window, eventHandler);
+	}
+
+	// TODO: Find an easy way to make IsEventHandler<EventHandler, ANY_EVENT>
+	/*template <typename EventHandler>
 	auto DispatchSpecificEvent(const SDL_Event &, EventHandler&&) -> typename std::enable_if<!IsEventHandler<EventHandler, SDL_Event>::value>::type
 	{
 		static_assert(IsEventHandler<EventHandler, SDL_Event>::value, "Event handler is not a valid functor or object");
-	}
+	}*/
 
 	template <typename... EventHandlers>
 	void DispatchEvent(const SDL_Event &, EventHandlers&&...);

tests/test_eventdispatching.cc

@@ -54,4 +54,16 @@ auto eventHandlerObject = EventHandlerObject{};
 DispatchEvent(event, eventHandlerObject);
 EXPECT_EQUAL(event.user.code, eventHandlerObject.result);
 
+struct SpecificEventHandler {
+	Sint32 result;
+	
+	void HandleEvent(SDL_UserEvent event) {
+		result = event.code;
+	}
+};
+
+auto specificEventHandler = SpecificEventHandler{};
+DispatchEvent(event, specificEventHandler);
+EXPECT_EQUAL(event.user.code, specificEventHandler.result);
+
 END_TEST()