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misc/observer.cpp

Go to the documentation of this file.

#include "observer.h"

using namespace std;


GltObserverAbstract::GltObserverAbstract()
{
}

GltObserverAbstract::GltObserverAbstract(const GltObserverAbstract &other)
{
}

GltObserverAbstract::~GltObserverAbstract() 
{
    for (list<GltSubject *>::iterator i=_subjects.begin(); i!=_subjects.end(); i++)
        (*i)->_observers.remove(this);
    _subjects.clear();
}

GltObserverAbstract &
GltObserverAbstract::operator=(const GltObserverAbstract &other)
{
    return *this;
}

void 
GltObserverAbstract::observe(GltSubject &subject)
{
    subject._observers.push_back(this);
    _subjects.push_back(&subject);
}

void 
GltObserverAbstract::forget(GltSubject &subject)
{
    subject._observers.remove(this);
    _subjects.remove(&subject);
}


GltSubject::GltSubject()  
{
}

GltSubject::GltSubject(const GltSubject &other)
{
}

GltSubject::~GltSubject() 
{
    for (list<GltObserverAbstract *>::iterator i=_observers.begin(); i!=_observers.end(); i++)
        (*i)->_subjects.remove(this);
    _observers.clear();
}

GltSubject &
GltSubject::operator=(const GltSubject &other)
{
    return *this;
}

void 
GltSubject::notify(const void *object)
{
    for (list<GltObserverAbstract *>::iterator i=_observers.begin(); i!=_observers.end(); i++)
        (*i)->OnNotify(object);
}

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