sigc::compose() combines two or three arbitrary functors.
More...
|
template<class T_setter, class T_getter> |
compose1_functor< T_setter, T_getter > | sigc::compose (const T_setter & _A_setter, const T_getter & _A_getter) |
| Creates an adaptor of type sigc::compose1_functor which combines two functors.
|
template<class T_setter, class T_getter1, class T_getter2> |
compose2_functor< T_setter, T_getter1, T_getter2 > | sigc::compose (const T_setter & _A_setter, const T_getter1 & _A_getter1, const T_getter2 & _A_getter2) |
| Creates an adaptor of type sigc::compose2_functor which combines three functors.
|
sigc::compose() combines two or three arbitrary functors.
On invokation, parameters are passed on to one or two getter functor(s). The return value(s) are then passed on to the setter function.
- Examples:
float square_root(float a) { return sqrtf(a); }
float sum(float a, float b) { return a+b; }
compose1_functor< T_setter, T_getter > compose(const T_setter &_A_setter, const T_getter &_A_getter)
Creates an adaptor of type sigc::compose1_functor which combines two functors.
Definition compose.h:288
The functor sigc::compose() returns can be passed directly into sigc::signal::connect().
- Example:
iterator connect(const slot_type &slot_)
Add a slot to the list of slots.
Definition signal.h:3911
Convenience wrapper for the numbered sigc::signal# templates.
Definition signal.h:4055
◆ compose() [1/2]
template <class T_setter, class T_getter>
compose1_functor< T_setter, T_getter > sigc::compose |
( |
const T_setter & | _A_setter, |
|
|
const T_getter & | _A_getter ) |
|
inline |
Creates an adaptor of type sigc::compose1_functor which combines two functors.
- Parameters
-
_A_setter | Functor that receives the return value of the invokation of _A_getter. |
_A_getter | Functor to invoke from operator()(). |
- Returns
- Adaptor that executes _A_setter with the value returned from invokation of _A_getter.
◆ compose() [2/2]
template <class T_setter, class T_getter1, class T_getter2>
compose2_functor< T_setter, T_getter1, T_getter2 > sigc::compose |
( |
const T_setter & | _A_setter, |
|
|
const T_getter1 & | _A_getter1, |
|
|
const T_getter2 & | _A_getter2 ) |
|
inline |
Creates an adaptor of type sigc::compose2_functor which combines three functors.
- Parameters
-
_A_setter | Functor that receives the return values of the invokation of _A_getter1 and _A_getter2. |
_A_getter1 | Functor to invoke from operator()(). |
_A_getter2 | Functor to invoke from operator()(). |
- Returns
- Adaptor that executes _A_setter with the values return from invokation of _A_getter1 and _A_getter2.