frame_step01.txt

来自「C++课件,很好用的,帮助大家学习C++.」· 文本 代码 · 共 51 行

//*****************************************************
//		Step 1
//  Desc: 1) 决定采用Handle类的方法
//	  2) 确定Picture类和抽象类Node的公共接口		
//
//*****************************************************

#ifndef PICTURESH
#define PICTURESH

#include <iostream.h>
class Node;
//------------------------------------------------------
class Picture
{
public:
	Picture(char ** array,int wd, int ht);
	~Picture();
	Picture(const Picture& rhs);
	Picture& operator=(const Picture& rhs);
public:
	void Display() const;
	int  Width() const;
	int  Height() const;
private:
	Node *  pt;
};
//------------------------------------------------------
class Node
{
public:
	Node();
	virtual ~Node()	{}
	virtual  void Display() const=0;
	virtual  int  Width()  const=0;
	virtual  int  Height() const=0;
};
//------------------------------------------------------
class DataPic:public Node
{
};
class FramePic:public Node
{
};
class HCatPic:public Node
{
};
class VCatPic:public Node
{
};
#endif