7 #ifndef __LIBCAMERA_SIGNAL_H__
8 #define __LIBCAMERA_SIGNAL_H__
12 #include <type_traits>
23 void disconnect(Object *
object);
26 using SlotList = std::list<BoundMethodBase *>;
28 void connect(BoundMethodBase *slot);
29 void disconnect(std::function<
bool(SlotList::iterator &)> match);
37 template<
typename... Args>
48 template<typename T, typename R, typename std::enable_if_t<std::is_base_of<Object, T>::value> * =
nullptr>
49 void connect(T *obj, R (T::*func)(Args...),
53 SignalBase::connect(
new BoundMethodMember<T, void, Args...>(obj,
object, func, type));
56 template<typename T, typename R, typename std::enable_if_t<!std::is_base_of<Object, T>::value> * =
nullptr>
58 template<
typename T,
typename R>
60 void connect(T *obj, R (T::*func)(Args...))
62 SignalBase::connect(
new BoundMethodMember<T, R, Args...>(obj,
nullptr, func));
68 SignalBase::connect(
new BoundMethodStatic<R, Args...>(func));
73 SignalBase::disconnect([](SlotList::iterator &iter) {
81 SignalBase::disconnect([obj](SlotList::iterator &iter) {
82 return (*iter)->match(obj);
86 template<
typename T,
typename R>
89 SignalBase::disconnect([obj, func](SlotList::iterator &iter) {
90 BoundMethodArgs<R, Args...> *slot =
91 static_cast<BoundMethodArgs<R, Args...
> *>(*iter);
93 if (!slot->match(obj))
102 return static_cast<BoundMethodMember<T, R, Args...
> *>(slot)->match(func);
109 SignalBase::disconnect([func](SlotList::iterator &iter) {
110 BoundMethodArgs<R, Args...> *slot =
111 static_cast<BoundMethodArgs<R, Args...
> *>(*iter);
113 if (!slot->match(
nullptr))
116 return static_cast<BoundMethodStatic<R, Args...
> *>(slot)->match(func);
126 for (BoundMethodBase *slot : slots())
127 static_cast<BoundMethodArgs<
void, Args...
> *>(slot)->activate(args...);
Method bind and invocation.
ConnectionType
Connection type for asynchronous communication.
Definition: bound_method.h:19
@ ConnectionTypeAuto
If the sender and the receiver live in the same thread, ConnectionTypeDirect is used....
Definition: bound_method.h:20
Base object to support automatic signal disconnection.
Definition: object.h:25
Generic signal and slot communication mechanism.
Definition: signal.h:39
void disconnect(R(*func)(Args...))
Disconnect the signal from the slot static function func.
Definition: signal.h:107
void disconnect(T *obj)
Disconnect the signal from all slots of the object.
Definition: signal.h:79
void disconnect()
Disconnect the signal from all slots.
Definition: signal.h:71
void connect(T *obj, R(T::*func)(Args...))
Connect the signal to a member function slot.
Definition: signal.h:60
void connect(R(*func)(Args...))
Connect the signal to a static function slot.
Definition: signal.h:66
void disconnect(T *obj, R(T::*func)(Args...))
Disconnect the signal from the object slot member function func.
Definition: signal.h:87
void emit(Args... args)
Emit the signal and call all connected slots.
Definition: signal.h:120
Base object to support automatic signal disconnection.