2021.10.17 装饰模式c++

一、今日学习内容

[实验任务一]：手机功能的升级

用装饰模式模拟手机功能的升级过程：简单的手机(SimplePhone)在接收来电时，会发出声音提醒主人；而JarPhone除了声音还能振动；更高级的手机(ComplexPhone)除了声音、振动外，还有灯光闪烁提示。

 

 

 

 

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

class Phone
{
public:
    Phone() {}
    virtual ~Phone() {}
    virtual void ShowDecorate() {}
};
//具体的手机类
class NokiaPhone : public Phone
{
private:
    string m_name;
public:
    NokiaPhone(string name) : m_name(name) {}
    ~NokiaPhone() {}
    void ShowDecorate() { cout <<"--------------" <<m_name << "------------------" << endl; }
};
//装饰类
class DecoratorPhone : public Phone
{
private:
    Phone* m_phone;  //要装饰的手机
public:
    DecoratorPhone(Phone* phone) : m_phone(phone) {}
    virtual void ShowDecorate() { m_phone->ShowDecorate(); }
};
//具体的装饰类
class DecoratorPhoneA : public DecoratorPhone
{
public:
    DecoratorPhoneA(Phone* phone) : DecoratorPhone(phone) {}
    void ShowDecorate() { DecoratorPhone::ShowDecorate(); AddDecorate(); }
private:
    void AddDecorate() { cout << "声音提示" << endl; } //增加的装饰
};
//具体的装饰类
class DecoratorPhoneB : public DecoratorPhone
{
public:
    DecoratorPhoneB(Phone* phone) : DecoratorPhone(phone) {}
    void ShowDecorate() { DecoratorPhone::ShowDecorate(); AddDecorate(); }
private:
    void AddDecorate() { cout << "震动提示" << endl; } //增加的装饰
};
//具体的装饰类
class DecoratorPhoneC : public DecoratorPhone
{
public:
    DecoratorPhoneC(Phone* phone) : DecoratorPhone(phone) {}
    void ShowDecorate() { DecoratorPhone::ShowDecorate(); AddDecorate(); }
private:
    void AddDecorate() { cout << "灯光闪烁提示" << endl; } //增加的装饰
};
int main()
{
    Phone* iphone = new NokiaPhone("SimplePhone");
    Phone* dpa = new DecoratorPhoneA(iphone);
    dpa->ShowDecorate();

    Phone* phone = new NokiaPhone("JarPhone");
    Phone* dpA = new DecoratorPhoneA(phone);
    Phone* dpb = new DecoratorPhoneB(dpA);
    dpb->ShowDecorate();

    Phone* cphone = new NokiaPhone("ComplexPhone");
    Phone* d = new DecoratorPhoneA(cphone);
    Phone* dpB = new DecoratorPhoneB(d);
    Phone* dpC = new DecoratorPhoneC(dpB);
    dpC->ShowDecorate();

    delete dpa;
    delete iphone;

    delete dpA;
    delete dpb;
    delete phone;

    delete d;
    delete dpB;
    delete dpC;
    delete cphone;
}