From 408eb1fb5932a683a65db79afed6a300e18db5c6 Mon Sep 17 00:00:00 2001
From: WBoerenkamps <wrj.boerenkamps@student.avans.nl>
Date: Wed, 13 Nov 2024 15:37:11 +0100
Subject: added keycodes

---
 src/crepe/api/EventManager.h | 274 +++++++++++++++++++++++++------------------
 1 file changed, 161 insertions(+), 113 deletions(-)

(limited to 'src/crepe/api/EventManager.h')

diff --git a/src/crepe/api/EventManager.h b/src/crepe/api/EventManager.h
index b963ce3..26539ce 100644
--- a/src/crepe/api/EventManager.h
+++ b/src/crepe/api/EventManager.h
@@ -1,11 +1,11 @@
 #pragma once
 
+#include <functional>
 #include <memory>
+#include <type_traits>
+#include <typeindex>
 #include <unordered_map>
 #include <vector>
-#include <functional>
-#include <typeindex>
-#include <type_traits>
 
 #include "Event.h"
 #include "EventHandler.h"
@@ -17,26 +17,26 @@
  */
 class EventManager {
 public:
-    /**
+	/**
      * \brief Deleted copy constructor to prevent copying of the EventManager instance.
      */
-    EventManager(const EventManager &) = delete;
+	EventManager(const EventManager &) = delete;
 
-    /**
+	/**
      * \brief Deleted copy assignment operator to prevent assignment of the EventManager instance.
      */
-    const EventManager & operator=(const EventManager &) = delete;
+	const EventManager & operator=(const EventManager &) = delete;
 
-    /**
+	/**
      * \brief Get the singleton instance of the EventManager.
      * 
      * This method returns the unique instance of the EventManager, creating it on the first call.
      * 
      * \return Reference to the EventManager instance.
      */
-    static EventManager & get_instance();
+	static EventManager & get_instance();
 
-    /**
+	/**
      * \brief Subscribe to an event.
      * 
      * This method allows the registration of a callback for a specific event type and channel.
@@ -45,10 +45,10 @@ public:
      * \param callback The callback function to invoke when the event is triggered.
      * \param channel The channel number to subscribe to (default is 0).
      */
-    template <typename EventType>
-    void subscribe(EventHandler<EventType> && callback, int channel = 0);
+	template <typename EventType>
+	void subscribe(EventHandler<EventType> && callback, int channel = 0);
 
-    /**
+	/**
      * \brief Unsubscribe from an event.
      * 
      * This method removes a previously registered callback from an event.
@@ -57,10 +57,10 @@ public:
      * \param callback The callback function to remove from the subscription list.
      * \param channel The event ID to unsubscribe from.
      */
-    template <typename EventType>
-    void unsubscribe(const EventHandler<EventType> &, int channel);
+	template <typename EventType>
+	void unsubscribe(const EventHandler<EventType> &, int channel);
 
-    /**
+	/**
      * \brief Trigger an event.
      * 
      * This method invokes the appropriate callback(s) for the specified event.
@@ -69,10 +69,10 @@ public:
      * \param event The event data to pass to the callback.
      * \param channel The channel from which to trigger the event (default is 0).
      */
-    template <typename EventType>
-    void trigger_event(const EventType & event, int channel);
+	template <typename EventType>
+	void trigger_event(const EventType & event, int channel);
 
-    /**
+	/**
      * \brief Queue an event for later processing.
      * 
      * This method adds an event to the event queue, which will be processed in the 
@@ -82,128 +82,176 @@ public:
      * \param event The event to queue.
      * \param channel The channel number for the event (default is 0).
      */
-    template <typename EventType>
-    void queue_event(EventType&& event, int channel);
+	template <typename EventType>
+	void queue_event(EventType && event, int channel);
 
-    /**
+	/**
      * \brief Dispatch all queued events.
      * 
      * This method processes all events in the event queue and triggers the corresponding 
      * callbacks for each event.
      */
-    void dispatch_events();
+	void dispatch_events();
 
 private:
-    /**
+	/**
      * \brief Default constructor for the EventManager.
      * 
      * This constructor is private to enforce the singleton pattern.
      */
-    EventManager() = default;
+	EventManager() = default;
 
-    //! The queue of events to be processed.
-    std::vector<std::tuple<std::unique_ptr<Event>, int, std::type_index>> events_queue; 
+	//! The queue of events to be processed.
+	std::vector<std::tuple<std::unique_ptr<Event>, int, std::type_index>>
+		events_queue;
 	//! Registered event handlers.
-    std::unordered_map<std::type_index, std::vector<std::unique_ptr<IEventHandlerWrapper>>> subscribers; 
+	std::unordered_map<std::type_index,
+					   std::vector<std::unique_ptr<IEventHandlerWrapper>>>
+		subscribers;
 	//! Event handlers indexed by event ID.
-    std::unordered_map<std::type_index, std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>> subscribers_by_event_id; 
+	std::unordered_map<
+		std::type_index,
+		std::unordered_map<int,
+						   std::vector<std::unique_ptr<IEventHandlerWrapper>>>>
+		subscribers_by_event_id;
 };
-
 template <typename EventType>
 void EventManager::subscribe(EventHandler<EventType> && callback, int channel) {
-    std::type_index event_type = typeid(EventType);
-    std::unique_ptr<EventHandlerWrapper<EventType>> handler = std::make_unique<EventHandlerWrapper<EventType>>(callback);
-    
-    if (channel) {
-        std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>& handlers_map = this->subscribers_by_event_id[event_type];
-        std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator handlers = handlers_map.find(channel);
-        if (handlers != handlers_map.end()) {
-            handlers->second.emplace_back(std::move(handler));
-        } else {
-            handlers_map[channel].emplace_back(std::move(handler));
-        }
-    } else {
-        std::vector<std::unique_ptr<IEventHandlerWrapper>>& handlers = this->subscribers[event_type];
-        handlers.emplace_back(std::move(handler));
-    }
+	std::type_index event_type = typeid(EventType);
+	std::unique_ptr<EventHandlerWrapper<EventType>> handler
+		= std::make_unique<EventHandlerWrapper<EventType>>(callback);
+
+	if (channel) {
+		std::unordered_map<int,
+						   std::vector<std::unique_ptr<IEventHandlerWrapper>>> &
+			handlers_map
+			= this->subscribers_by_event_id[event_type];
+		std::unordered_map<
+			int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator
+			handlers
+			= handlers_map.find(channel);
+		if (handlers != handlers_map.end()) {
+			handlers->second.emplace_back(std::move(handler));
+		} else {
+			handlers_map[channel].emplace_back(std::move(handler));
+		}
+	} else {
+		std::vector<std::unique_ptr<IEventHandlerWrapper>> & handlers
+			= this->subscribers[event_type];
+		handlers.emplace_back(std::move(handler));
+	}
 }
 
 template <typename EventType>
-void EventManager::queue_event(EventType&& event, int channel) {
-    std::type_index event_type = std::type_index(typeid(EventType));
-    
-    std::unique_ptr<EventType> event_ptr = std::make_unique<EventType>(std::forward<EventType>(event));
-
-    std::tuple<std::unique_ptr<Event>, int, std::type_index> tuple(
-        std::move(event_ptr),
-        channel,
-        event_type
-    );
-    this->events_queue.push_back(std::move(tuple));
+void EventManager::queue_event(EventType && event, int channel) {
+	std::type_index event_type = std::type_index(typeid(EventType));
+
+	std::unique_ptr<EventType> event_ptr
+		= std::make_unique<EventType>(std::forward<EventType>(event));
+
+	std::tuple<std::unique_ptr<Event>, int, std::type_index> tuple(
+		std::move(event_ptr), channel, event_type);
+	this->events_queue.push_back(std::move(tuple));
 }
 
 template <typename EventType>
 void EventManager::trigger_event(const EventType & event, int channel) {
-    std::type_index event_type = std::type_index(typeid(EventType));
-    
-    if (channel > 0) {
-        std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>& handlers_map = this->subscribers_by_event_id[event_type];
-        std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator handlers_it = handlers_map.find(channel);
-        
-        if (handlers_it != handlers_map.end()) {
-            std::vector<std::unique_ptr<IEventHandlerWrapper>>& handlers = handlers_it->second;
-            for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it = handlers.begin(); it != handlers.end();) {
+	std::type_index event_type = std::type_index(typeid(EventType));
+
+	if (channel > 0) {
+		std::unordered_map<int,
+						   std::vector<std::unique_ptr<IEventHandlerWrapper>>> &
+			handlers_map
+			= this->subscribers_by_event_id[event_type];
+		std::unordered_map<
+			int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator
+			handlers_it
+			= handlers_map.find(channel);
+
+		if (handlers_it != handlers_map.end()) {
+			std::vector<std::unique_ptr<IEventHandlerWrapper>> & handlers
+				= handlers_it->second;
+			for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it
+				 = handlers.begin();
+				 it != handlers.end();) {
 				// erases callback if callback function returns true
-                if ((*it)->exec(event)) {
-                    it = handlers.erase(it);
-                } else {
-                    ++it;
-                }
-            }
-        }
-    } else {
-        std::vector<std::unique_ptr<IEventHandlerWrapper>>& handlers = this->subscribers[event_type];
-        for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it = handlers.begin(); it != handlers.end();) {
+				if ((*it)->exec(event)) {
+					it = handlers.erase(it);
+				} else {
+					++it;
+				}
+			}
+		}
+	} else {
+		std::vector<std::unique_ptr<IEventHandlerWrapper>> & handlers
+			= this->subscribers[event_type];
+		for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it
+			 = handlers.begin();
+			 it != handlers.end();) {
 			// erases callback if callback function returns true
-             if ((*it)->exec(event)) {
-                    it = handlers.erase(it);
-            } else {
-                    ++it;
-             }
-        }
-    }
+			if ((*it)->exec(event)) {
+				it = handlers.erase(it);
+			} else {
+				++it;
+			}
+		}
+	}
 }
 
 template <typename EventType>
-void EventManager::unsubscribe(const EventHandler<EventType> & callback, int channel) {
-    std::type_index event_type(typeid(EventType));
-    std::string handler_name = callback.target_type().name();
-
-    if (channel) {
-        std::unordered_map<std::type_index, std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>>::iterator subscriber_list = this->subscribers_by_event_id.find(event_type);
-        if (subscriber_list != this->subscribers_by_event_id.end()) {
-            std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>& handlers_map = subscriber_list->second;
-            std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator handlers = handlers_map.find(channel);
-            if (handlers != handlers_map.end()) {
-                std::vector<std::unique_ptr<IEventHandlerWrapper>>& callbacks = handlers->second;
-                for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it = callbacks.begin(); it != callbacks.end(); ++it) {
-                    if ((*it)->get_type() == handler_name) {
-                        it = callbacks.erase(it);
-                        return;
-                    }
-                }
-            }
-        }
-    } else {
-        std::unordered_map<std::type_index, std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator handlers_it = this->subscribers.find(event_type);
-        if (handlers_it != this->subscribers.end()) {
-            std::vector<std::unique_ptr<IEventHandlerWrapper>>& handlers = handlers_it->second;
-            for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it = handlers.begin(); it != handlers.end(); ++it) {
-                if ((*it)->get_type() == handler_name) {
-                    it = handlers.erase(it);
-                    return;
-                }
-            }
-        }
-    }
+void EventManager::unsubscribe(const EventHandler<EventType> & callback,
+							   int channel) {
+	std::type_index event_type(typeid(EventType));
+	std::string handler_name = callback.target_type().name();
+
+	if (channel) {
+		std::unordered_map<
+			std::type_index,
+			std::unordered_map<
+				int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>>::
+			iterator subscriber_list
+			= this->subscribers_by_event_id.find(event_type);
+		if (subscriber_list != this->subscribers_by_event_id.end()) {
+			std::unordered_map<
+				int, std::vector<std::unique_ptr<IEventHandlerWrapper>>> &
+				handlers_map
+				= subscriber_list->second;
+			std::unordered_map<
+				int,
+				std::vector<std::unique_ptr<IEventHandlerWrapper>>>::iterator
+				handlers
+				= handlers_map.find(channel);
+			if (handlers != handlers_map.end()) {
+				std::vector<std::unique_ptr<IEventHandlerWrapper>> & callbacks
+					= handlers->second;
+				for (std::vector<
+						 std::unique_ptr<IEventHandlerWrapper>>::iterator it
+					 = callbacks.begin();
+					 it != callbacks.end(); ++it) {
+					if ((*it)->get_type() == handler_name) {
+						it = callbacks.erase(it);
+						return;
+					}
+				}
+			}
+		}
+	} else {
+		std::unordered_map<std::type_index,
+						   std::vector<std::unique_ptr<IEventHandlerWrapper>>>::
+			iterator handlers_it
+			= this->subscribers.find(event_type);
+		if (handlers_it != this->subscribers.end()) {
+			std::vector<std::unique_ptr<IEventHandlerWrapper>> & handlers
+				= handlers_it->second;
+			for (std::vector<std::unique_ptr<IEventHandlerWrapper>>::iterator it
+				 = handlers.begin();
+				 it != handlers.end(); ++it) {
+				if ((*it)->get_type() == handler_name) {
+					it = handlers.erase(it);
+					return;
+				}
+			}
+		}
+	}
 }
+
-- 
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