95 lines
1.5 KiB
C++
95 lines
1.5 KiB
C++
#ifndef __DECORATOR_PATTERN_H__
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#define __DECORATOR_PATTERN_H__
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// 抽象构件
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class Component
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{
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public:
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Component(){}
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virtual ~Component(){}
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virtual void operation() = 0;
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};
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// 具体构件
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class Phone :public Component
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{
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public:
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Phone(){}
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void operation(){
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printf("手机\n");
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}
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};
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// 抽象装饰类
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class Decorator :public Component
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{
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public:
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Decorator(){}
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Decorator(Component *c){
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this->component = c;
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}
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void operation(){
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this->component->operation();
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}
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Component *getComponent(){
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return this->component;
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}
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void setComponent(Component *c){
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this->component = c;
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}
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private:
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Component *component;
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};
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// 具体装饰类：手机壳
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class DecoratorShell:public Decorator
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{
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public:
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DecoratorShell(){}
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DecoratorShell(Component *c){
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this->setComponent(c);
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}
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void operation(){
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this->getComponent()->operation();
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this->newBehavior();
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}
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void newBehavior(){
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printf("安装手机壳\n");
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}
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};
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// 具体装饰类：手机贴纸
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class DecoratorSticker :public Decorator
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{
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public:
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DecoratorSticker(){}
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DecoratorSticker(Component *c){
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this->setComponent(c);
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}
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void operation(){
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this->getComponent()->operation();
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this->newBehavior();
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}
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void newBehavior(){
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printf("贴卡通贴纸ֽ\n");
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}
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};
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// 具体装饰类：挂绳
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class DecoratorRope :public Decorator
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{
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public:
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DecoratorRope(){}
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DecoratorRope(Component *c){
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this->setComponent(c);
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}
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void operation(){
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this->getComponent()->operation();
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this->newBehavior();
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}
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void newBehavior(){
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printf("系手机挂绳\n");
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}
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};
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#endif //__DECORATOR_PATTERN_H__
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