Created
December 13, 2011 21:06
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Callback deluxe
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class Callback | |
{ | |
public: | |
Callback() {} | |
virtual ~Callback(); | |
virtual void onMouseMove(int x, int y) = 0; | |
}; | |
template <typename T> | |
class CallbackDeluxe : Callback | |
{ | |
typedef void (T::*TMouseMoveProc) (int x, int y); | |
public: | |
CallbackDeluxe(T* instance, TMethod proc) : m_instance(instance), m_proc(proc) {} | |
virtual ~CallbackDeluxe() {} | |
virtual void onMouseMove(int x, int y) | |
{ | |
(m_instance.*m_proc)(x, y); | |
} | |
protected: | |
T* m_instance; | |
TMouseMoveProc m_proc; | |
}; | |
class Input | |
{ | |
public: | |
void RegisterCallback(Callback* callback) | |
{ | |
m_callback = callback; | |
} | |
template <typename T> | |
void RegisterCallback(T* instance, void (T::*proc) (int x, int y)) | |
{ | |
m_callback = new CallbackDeluxe(instance, proc); // LEAK \o/ | |
} | |
void onMouseMove(int x, int y) | |
{ | |
m_callback->onMouseMove(x, y); | |
} | |
protected: | |
Callback *m_callback; | |
}; | |
class Bozo | |
{ | |
public: | |
void Pouet(int x, int y) | |
{ | |
printf("%d %d\n", x, y); | |
} | |
}; | |
int main() | |
{ | |
Input in; | |
Bozo foo; | |
in.Register(&foo, &(Bozo::Pouet)); | |
in.onMouseMove(1, 4); | |
} |
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