Ra::Core::Utils::Observable< Args > Class Template Reference

#include <Core/Utils/Observable.hpp>

Inheritance diagram for Ra::Core::Utils::Observable< Args >:

Collaboration diagram for Ra::Core::Utils::Observable< Args >:

Public Types
using	Observer = std::function< void(Args...)>
	Observer functor type.

Public Member Functions
	Observable ()=default
	Default constructor ... do nothing ;)
	Observable (const Observable &)=delete
Observable &	operator= (const Observable &)=delete
void	copyObserversTo (Observable &other) const
	explicit copy of all attached observers the other Observable
int	attach (Observer observer)
template<typename T >
int	attachMember (T *object, void(T::*observer)(Args...))
void	notify (Args... p) const
	Notify (i.e. call) each attached observer with argument p.
void	detachAll ()
	Detach all observers.
void	detach (int observerId)

Detailed Description

template<typename... Args>
class Ra::Core::Utils::Observable< Args >

Simple observable implementation with void observer(Args...) notification. Typical usage is to derive from Observer with the intended Args as in

class MyClass : public Oberservable<int> [...]
MyClass c;
c.attach(functor)

Also a class can have Observable members, than act as slots

class MyClass {
public :
  Oberservable<int> slot0;
  Oberservable<> slot1;
  void f(){ slot0.notify(10); }
};
MyClass c;
c.slot0.attach(functor)
c.slot1.attach(functor)

Definition at line 33 of file Observable.hpp.

Member Function Documentation

attach()

template<typename... Args>

int Ra::Core::Utils::Observable< Args >::attach ( Observer  observer )

inline

Attach an observer that will be call on subsecant call to notify()

Returns

An unique int to identify the observer, could be used to pass to Obeservable::detach

Definition at line 54 of file Observable.hpp.

attachMember()

template<typename... Args>

template<typename T >

int Ra::Core::Utils::Observable< Args >::attachMember ( T *  object, void(T::*)(Args...)  observer  )

inline

Utility function that extract the observer from a class member. Attach an observer that will be call on subsecant call to notify()

Returns

An unique int to identify the observer, could be used to pass to Obeservable::detach

Definition at line 63 of file Observable.hpp.

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detach()

template<typename... Args>

void Ra::Core::Utils::Observable< Args >::detach ( int  observerId )

inline

Detach the observerId, observerId must have been saved from a previous call to attach

Definition at line 77 of file Observable.hpp.

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

• /home/runner/work/Radium-Engine/Radium-Engine/src/Radium-Engine/src/Core/Utils/Observable.hpp