Headfirst设计模式的C++实现——外观模式(Facade)

light.h

 1 #ifndef _LIGHT_H_
 2 #define _LIGHT_H_
 3 
 4 #include <iostream>
 5 
 6 class LIGHT {
 7 public:
 8     void dim(int level) { std::cout << "LIGHT dim to " << level << std::endl; }
 9 };
10 
11 #endif

popper.h

 1 #ifndef _POPPER_H_
 2 #define _POPPER_H_
 3 
 4 #include <iostream>
 5 
 6 class POPPER {
 7 public:
 8     void on() { std::cout << "POPPER on" << std::endl; }
 9     void pop() { std::cout << "POPPER pop" << std::endl; }
10 };
11 #endif

facade.h

 1 #ifndef _FACADE_H_
 2 #define _FACADE_H_
 3 
 4 #include "light.h"
 5 #include "popper.h"
 6 
 7 class FACADE {
 8 private:
 9     POPPER & popper;
10     LIGHT & light;
11 public:
12     FACADE(POPPER &_popper, LIGHT &_light) : popper(_popper), light(_light) {}
13     void watch_movie() {
14         popper.on();
15         popper.pop();
16         light.dim(5);
17     }
18 };
19 #endif


main.cpp

1 #include "facade.h"
2 
3 int main()
4 {
5     LIGHT light;
6     POPPER popper;
7     FACADE facade(popper, light);
8     facade.watch_movie();
9 }

 

posted @ 2016-05-02 10:31  Ren.Yu  阅读(126)  评论(0)  编辑  收藏  举报