cel_observable.h

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//----------------------------------------------------------------------------
//
// (C) 2003-2006 Celartem Technology Inc. All rights reserved.
//----------------------------------------------------------------------------

#ifndef _cel_observable_h_
#define _cel_observable_h_

#include "cel_types.h"
#include "cel_referable.h"
#include "cel_syncobjs.h"
#include <vector>

namespace Celartem
{
    class Observer;

    class Observable : public Referable
    {
    public:
        virtual void notify();

        void attachObserver(Observer *inObserver);

        void detachObserver(Observer *inObserver);

        void detachAllObservers();

    protected:
        Observable();
        virtual ~Observable();

    private:
        Mutex m_mutex;
        std::vector<Observer*> m_observers;
        typedef std::vector<Observer*>::iterator Iterator;

        // duplication is not permitted
        Observable(const Observable&);
        Observable& operator=(const Observable&);
    };

    class Observer
    {
    public:
        virtual ~Observer() {}

        virtual void update(Observable *inObservable) = 0;
    };

    class ObserverImpl : public Observer
    {
    public:
        ObserverImpl();

        virtual ~ObserverImpl();

        void attachObservable(Observable *inObservable);

        void detachObservable(Observable *inObservable);

        void detachAllObservables();

        virtual void update(Observable *inObservable) = 0;

    private:
        Mutex m_mutex;
        std::vector<Observable *> m_observables;
        typedef std::vector<Observable *>::iterator Iterator;
    };

} // namespace Celartem

#endif // _cel_observable_h_

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This document is automatically generated using doxygen 1.5.4 at Fri Jun 27 18:21:54 2008.