d-shape.h

来自「一些学习c++的例题」· C头文件 代码 · 共 28 行

#ifndef __SHAPE_H__
#define __SHAPE_H__

#include "graphenv.h"

class CShape
{
private:
   static long m_nObjectCount;

protected:
   long m_nID;

public:
   CShape() { m_nID = m_nObjectCount++; }
   ~CShape() { m_nObjectCount--; }

   virtual void Show(const int color) const = 0;
   virtual void Move(const int offsetX, const int offsetY) = 0;
   virtual void Inflate(const float s) = 0;
};

#ifndef __OBJECT_COUNT__
#define __OBJECT_COUNT__
long CShape::m_nObjectCount = 0;
#endif

#endif