firstline.h

电子画图板

//FirstLine直线类   
//FirstLine.h

//包含的头文件

//类定义
class FirstLine:public Shape{	//继承于Shape类
	DECLARE_SERIAL(FirstLine) 
private:
	double a;		//直线参数a	  (y=a*x+b)
	double b;		//直线参数b   (y=a*x+b)
public:
	FirstLine();
	FirstLine(double a,double b);
	~FirstLine();
public:
	virtual void drawShape(CDC *pDC,Coordinate co);		//画直线
	virtual void Serialize(CArchive& ar);				//串行化
};