C:/Users/Robert/Documents/Visual Studio 2008/Projects/ferprojekt/TerrainEditor/TerrainEditor/Observer.h

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#ifndef __Observer__
#define __Observer__

#include <list>

using namespace std;


class Observer;
class Observable;


/*****************************************************
*       Observable base class
*****************************************************/

class Observable {
public:
        void attach(Observer* observer);
        void detach(Observer* observer);

        void notify();

protected:
        list<Observer*> _observers;
};





/*****************************************************
*       Observer base class
*****************************************************/

class Observer {
public:
        void attach(Observable* observable);
        void detach(Observable* observable);

        virtual void notify(Observable* observable) = 0;
};


#endif

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