iframe-proxy | Sunbelt Computer Software

This repository was archived by the owner on Oct 19, 2022. It is now read-only.

31 lines (24 loc) · 585 Bytes

#include "Observer.h"
#include "Subject.h"
Observer::~Observer() { }
Observer::Observer() { }
Subject* ConcreteObserver::GetSubject() {
    return _sub;
ConcreteObserver::ConcreteObserver(Subject* sub) {
    _sub = sub;
    _sub->Attach(this);
ConcreteObserver::~ConcreteObserver() {
    _sub->Detach(this);
    //if (_sub != nullptr) {
    //    delete _sub;
void ConcreteObserver::Update(Subject* sub) {
    _st = sub->GetState();
    PrintInfo();
void ConcreteObserver::PrintInfo() {
    cout << "ConcreteObserver::PrintInfo\t" << _sub->GetState() << endl;

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