ObserverPattern.h

#ifndef OBSERVERPATTERN_H_INCLUDED
#define OBSERVERPATTERN_H_INCLUDED

#include <iostream>
#include <set>

class Observer {
protected:
public:
 virtual void Notify(int &receive) = 0;
};
class Observable {
protected:
 static Observable *iInstance;
 std::set<Observer*> observers;
 Observable(){}
public:
 static Observable *GetInstance();
 void AddObserver(Observer &observer);
 void RemoveObserver(Observer &observer);
 void NotifyObservers();
 void TriggerObservable();
};
class TestObserver : public Observer {
protected:
 Observable *observable;
public:
 TestObserver();
 ~TestObserver();
 void Notify(int &receive);
};

#endif // OBSERVERPATTERN_H_INCLUDED