d-circle.h

一些学习c++的例题

#ifndef __CIRCLE_H__
#define __CIRCLE_H__

class CCircle : public CShape
{
private:
   CPoint m_Center;
   int m_nRadius;

public:
   CCircle(const int x, const int y, const int r)
    : m_Center(x, y), m_nRadius(r) {}

   CCircle(const CPoint& p, const int r) : m_Center(p), m_nRadius(r) {}

   CCircle(const CCircle& c)
    : m_Center(c.m_Center), m_nRadius(c.m_nRadius) {}

   ~CCircle() {}

   void Show(const int color) const
   {
      CGraphEnv::SetColor(color);
      CGraphEnv::Circle(m_Center.x, m_Center.y, m_nRadius);
   }

   void Move(const int offsetX, const int offsetY)
   {
      m_Center += CPoint(offsetX, offsetY);
      Show(CGraphEnv::COLOR_LIGHTMAGENTA);
      CGraphEnv::Outtextxy(m_Center.x, m_Center.y, "moved");
   }

   void Inflate(const float s)
   {
      m_Center *= s;
      m_nRadius = int(m_nRadius * s);
      Show(CGraphEnv::COLOR_YELLOW);
      CGraphEnv::Outtextxy(m_Center.x, m_Center.y, "inflated");
   }
};

#endif