31 lines
985 B
C++
31 lines
985 B
C++
#ifndef BWIDGETS_EVENT_HANDLER_IMPL_HPP
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#define BWIDGETS_EVENT_HANDLER_IMPL_HPP
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#include <unordered_map>
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#include <basic_widgets/w/feat/event_handler.hpp>
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namespace bwidgets
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{
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class EventHandlerImpl : public virtual EventHandler
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{
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std::unordered_map<SDL_EventType, std::function<void(const SDL_Event&)>>
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_event_handlers {};
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public:
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void handle_event(const SDL_Event&) override;
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protected:
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// Add an handler for a given event type. There can be only one handler by
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// event type. Return true if handler is added successfuly. Return false
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// if handler cannot be added because there's already an handler for that
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// event type.
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auto _add_event_handler(handler_t) -> bool;
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// Remove the handler of a given event type. Return true with the removed
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// handler on success, false otherwise.
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auto _remove_event_handler(SDL_EventType) -> std::pair<handler_t, bool>;
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};
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}
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#endif
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