装饰者模式-c++实现

// decoratorpattern.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#include <string>
#include <iostream>
#include <memory>
using namespace std;

//抽象类Tank
class Tank
{
public:
virtual void shot() = 0;
virtual void run() = 0;

public:
virtual ~Tank()
{
cout << "in the destructor of Tank" << endl;
}
};
//具体类 T50
class T50 :public Tank
{
public:
void shot()
{
cout << "Tank T50 shot()" << endl;
}
void run()
{
cout << "Tank T50 run()" << endl;
}
public:
virtual ~T50()
{
cout << "In the destructor of T50" << endl;
}
};
//具体类T75
class T75 :public Tank
{
public:
void shot()
{
cout << "Tank T75 shot()" << endl;
}
void run()
{
cout << "Tank T75 run()" << endl;
}
public:
virtual ~T75()
{
cout << "In the destructor of T75" << endl;
}
};

//抽象类，Decorator
class Decorator :public Tank
{
protected:
Tank* tank;
public:
Decorator(Tank* tank) :tank(tank) {}  //具体的坦克的装饰类
virtual ~Decorator()
{
cout << "In the destructor of Decorator" << endl;
}
public:
void shot()
{
tank->shot();
}
void run()
{
tank->run();
}
};

class InfraredDecorator : public Decorator
{
private:
string infrared;//这就是所谓的addAtrribute
public:
InfraredDecorator(Tank* tank) :Decorator(tank) {}
virtual ~InfraredDecorator()
{
cout << "in the destructor of InfraredDecorator" << endl;
}
public:
void set_Infrared(const string &infrared)
{
this->infrared = infrared;
}
string get_infrared() const
{
return infrared;
}
void run()
{
tank->run();
set_Infrared("+Infrared");
cout << get_infrared() << endl;
}
void shot()
{
tank->shot();
}
};

class AmphibianDecorator :public Decorator
{
private:
string amphibian;
public:
AmphibianDecorator(Tank* tank) :Decorator(tank) {}
~AmphibianDecorator()
{
cout << "in the destructor of AmphibianDecorator" << endl;
}
public:
void set_amphibian(const string &hibian)
{
this->amphibian = hibian;
}
string get_amphibian() const
{
return amphibian;
}
public:
void run()
{
tank->run();
set_amphibian("+amphibian");
cout << get_amphibian() << endl;
}
void shot()
{
tank->shot();
}
};

int main(int argc, char **argv)
{
//给T50增加红外功能
Tank* tank1(new T50);
Tank* pid1(new InfraredDecorator(tank1));
pid1->shot();
cout << endl;
pid1->run();
cout << endl;
cout << endl << "---------------" << endl;
//给t75增加红外、两栖功能
Tank* tank2(new T75);
tank2->run();
Tank* pid2(new InfraredDecorator(tank2));
Tank* pad2(new AmphibianDecorator(pid2));
pad2->shot();
cout << endl;
pad2->run();
cout << endl;
cout << endl << "--------------" << endl;

//动态撤销其他装饰 ?
tank2->run();

Tank * tank3(tank2);
tank3->run();
return 0;
}