libsigc++
2.3.1
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Convenience wrapper for the numbered sigc::slot# templates. More...
#include <sigc++/functors/slot.h>
Public Types | |
typedef slot7< T_return, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7 > | parent_type |
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typedef T_return | result_type |
typedef type_trait< T_arg1 >::take | arg1_type_ |
typedef type_trait< T_arg2 >::take | arg2_type_ |
typedef type_trait< T_arg3 >::take | arg3_type_ |
typedef type_trait< T_arg4 >::take | arg4_type_ |
typedef type_trait< T_arg5 >::take | arg5_type_ |
typedef type_trait< T_arg6 >::take | arg6_type_ |
typedef type_trait< T_arg7 >::take | arg7_type_ |
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typedef trackable::func_destroy_notify | func_destroy_notify |
Public Member Functions | |
template<class T_functor > | |
slot (const T_functor& _A_func) | |
Constructs a slot from an arbitrary functor. | |
slot (const slot& src) | |
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T_return | operator() (arg1_type_ _A_a1, arg2_type_ _A_a2, arg3_type_ _A_a3, arg4_type_ _A_a4, arg5_type_ _A_a5, arg6_type_ _A_a6, arg7_type_ _A_a7) const |
Invoke the contained functor unless slot is in blocking state. | |
template<class T_functor > | |
slot7 (const T_functor& _A_func) | |
Constructs a slot from an arbitrary functor. | |
slot7 (const slot7& src) | |
slot7& | operator= (const slot7& src) |
Overrides this slot making a copy from another slot. | |
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slot_base () | |
Constructs an empty slot. | |
slot_base (rep_type* rep) | |
Constructs a slot from an existing slot_rep object. | |
slot_base (const slot_base& src) | |
Constructs a slot, copying an existing one. | |
operator bool () const | |
Tests whether a slot is null, because the default constructor was used. | |
void | set_parent (void* parent, void*(* cleanup)(void*)) const |
Sets the parent of this slot. | |
void | add_destroy_notify_callback (void* data, func_destroy_notify func) const |
Add a callback that is executed (notified) when the slot is detroyed. | |
void | remove_destroy_notify_callback (void* data) const |
Remove a callback previously installed with add_destroy_notify_callback(). | |
bool | empty () const |
Returns whether the slot is invalid. | |
bool | blocked () const |
Returns whether the slot is blocked. | |
bool | block (bool should_block=true) |
Sets the blocking state. | |
bool | unblock () |
Unsets the blocking state. | |
void | disconnect () |
Disconnects the slot. | |
slot_base& | operator= (const slot_base& src) |
Overrides this slot making a copy from another slot. | |
Additional Inherited Members | |
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rep_type* | rep_ |
Typed slot_rep object that contains a functor. | |
bool | blocked_ |
Indicates whether the slot is blocked. | |
Convenience wrapper for the numbered sigc::slot# templates.
Slots convert arbitrary functors to unified types which are opaque. sigc::slot itself is a functor or to be more precise a closure. It contains a single, arbitrary functor (or closure) that is executed in operator()().
The template arguments determine the function signature of operator()():
nil
means no argument.nil
means no argument.nil
means no argument.nil
means no argument.nil
means no argument.nil
means no argument.nil
means no argument.To use, simply assign the slot to the desired functor. If the functor is not compatible with the parameter list defined with the template arguments, compiler errors are triggered. When called, the slot will invoke the functor with minimal copies. block() and unblock() can be used to temporarily block the functor's invocation from operator()().
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inline |
Constructs a slot from an arbitrary functor.
_A_func | The desired functor the new slot should be assigned to. |