设计模式例程

inc/observe.hpp

@@ -0,0 +1,39 @@
+#pragma once
+#include "common.hpp"
+
+class WaterHeater;
+
+class Observer    // <20>۲<EFBFBD><DBB2>ߵij<DFB5><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+{
+public:
+	virtual void Update(WaterHeater* waterHeater) const = 0;
+};
+
+class WashingMode :public Observer      // <20>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD>
+{
+public:
+	virtual void Update(WaterHeater* waterHeater) const;
+};
+
+class DrinkingMode :public Observer     // <20>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD>
+{
+public:
+	virtual void Update(WaterHeater* waterHeater) const;
+};
+
+class WaterHeater        // <20><><EFBFBD>۲<EFBFBD><DBB2><EFBFBD><EFBFBD><EFBFBD>   
+{
+public:
+	WaterHeater(int temperature = 25) :m_temperature(temperature) {};
+
+	int getTempetature();
+	void setTemperature(int temperature);
+
+	virtual void HandleObserver();        // ֪ͨ<CDA8>۲<EFBFBD><DBB2><EFBFBD>
+	bool RegisterObserver(Observer* inObserver);      // <20><><EFBFBD>Ӽ<EFBFBD><D3BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۲죩<DBB2><ECA3A9>
+	bool UnRegisterObserver(Observer* inObserver);    // ɾ<><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۲죩<DBB2><ECA3A9>
+
+protected:
+	int m_temperature;
+	vector<Observer*> m_Observers;
+};