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Subject.cpp

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#include "Observer.h"

#include "Subject.h"

void Subject::Attach(Observer* obv) {

_obvs.push_front(obv);

}

void Subject::Detach(Observer* obv) {

if (obv != nullptr) {

_obvs.remove(obv);

}

}

void Subject::Notify() {

for (auto obv : _obvs) {

obv->Update(this);

}

}

Subject::~Subject() { }

Subject::Subject() {

//_obvs.clear();

}

string ConcreteSubject::GetState() {

return _st;

}

void ConcreteSubject::SetState(const string& st) {

_st = st;

}