DesignPattern/10.DecoratorPattern/2.Code/DecoratorPattern.h

95 lines
1.5 KiB
C++

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