Bridge模式C++代碼

H 檔案

#ifndef Rectangle_h#define Rectangle_hclass Drawing{    public:virtual void drawLine() = 0;virtual void drawCircle() = 0;};class V1Drawing:public Drawing{    public:void drawLine();void drawCircle();};class V2Drawing:public Drawing{    public:void drawLine();void drawCircle();};class Shape{    public:Shape(Drawing* cDrawing){            m_pDrawing = cDrawing;}virtual void draw()=0;protected:void drawLine();void drawCircle();private:Drawing* m_pDrawing;};class Rectangle: public Shape{    public:Rectangle(Drawing* pDrawing):Shape(pDrawing){}void draw();};class Circle: public Shape{    public:Circle(Drawing* pDrawing):Shape(pDrawing){}void draw();};#endif

C檔案代碼

#include "Rectangle.h"#include "iostream"using namespace std;void V1Drawing::drawLine(){    cout<<"V1Drawing::void drawLine()"<<endl;}void V1Drawing::drawCircle(){    cout<<"V1Drawing::void drawCircle()"<<endl;    }void V2Drawing::drawLine(){    cout<<"V2Drawing::void drawLine()"<<endl;  }void V2Drawing::drawCircle(){    cout<<"V2Drawing::void drawLine()"<<endl;      }void Shape::drawLine(){    m_pDrawing->drawLine();}void Shape::drawCircle(){    m_pDrawing->drawCircle();}void Rectangle::draw(){    drawLine();}void Circle::draw(){    drawCircle();}

Main 檔案代碼

#include "iostream"#include "Rectangle.h"using namespace std;void main(void){  Drawing* pV1Drawing = new V1Drawing;  Drawing* pV2Drawing = new V2Drawing;    Rectangle cRectangle1(pV1Drawing);  cRectangle1.draw();  Rectangle cRectangle2(pV2Drawing);  cRectangle2.draw();  Circle cCircle1(pV1Drawing);  cCircle1.draw();  Circle cCircle2(pV2Drawing);  cCircle2.draw();  delete pV1Drawing;  delete pV2Drawing;}