AE::Events::EventHandler Class Reference

A utility class that safely routes events to type-specific handler functions. More...

#include <Event.h>

Public Member Functions
	EventHandler (Event &event)
	Constructs an EventHandler for a specific event.
template<typename T>
bool	TryHandle (HandlerFn< T > handler)
	Attempts to handle an event if it matches the specified type.

Detailed Description

A utility class that safely routes events to type-specific handler functions.

The EventHandler provides a type-safe way to handle different types of events by:

1. Checking if an incoming event matches a specific type
2. If matched, converting the event to its specific type safely
3. Routing it to the appropriate handler function

Example usage:

void OnEvent(Event& e) {
    EventHandler handler(e);
 
    // Try to handle a window close event
    if (handler.TryHandle<WindowCloseEvent>(BIND_EVENT_FN(OnWindowClose))) {
        return; // Event was successfully handled
    }
 
    // Event wasn't a window close event, try other handlers...
}
 
bool OnWindowClose(WindowCloseEvent& e) {
    // Handle window close...
    return true;  // Mark event as handled
}

Note

Handler functions should return true if they've handled the event and false if the event should continue propagating to other handlers.

Constructor & Destructor Documentation

EventHandler()

AE::Events::EventHandler::EventHandler ( Event & event )

inline

Constructs an EventHandler for a specific event.

Parameters

event

The event to potentially handle.

Member Function Documentation

TryHandle()

template<typename T>

bool AE::Events::EventHandler::TryHandle ( HandlerFn< T > handler )

inline

Attempts to handle an event if it matches the specified type.

Template Parameters

T	The specific event type to check for.

Parameters

handler

The function to handle the event if types match.

Returns

true if the event type matched and the handler was called, false if the event was of a different type.

---

The documentation for this class was generated from the following file:

• src/Arnold/Events/Event.h