graphicfactory.h

包含几乎所有的c语言的库函数

// GraphicFactory.h: interface for the GraphicFactory class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_GRAPHICFACTORY_H__B075C7A8_7615_485B_AE4F_1BF446BEDF48__INCLUDED_)
#define AFX_GRAPHICFACTORY_H__B075C7A8_7615_485B_AE4F_1BF446BEDF48__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "Point.h"
#include "Line.h"
#include "Circle.h"
#include "Rect.h"

//=================================================================
//类工厂基类 : 子类为单件类工厂(SingleTon);
//=================================================================
class GraphicFactory  
{
public:
	virtual ~GraphicFactory();

protected:
	//不允许客户实例化;
	GraphicFactory();

public:
    //创建点图形元素;
	virtual Point*     CreatePoint    ()=0;

	//创建直线图形元素;
	virtual Line*      CreateLine     ()=0;

	//创建圆图形元素;
	virtual Circle*    CreateCircle   ()=0;

	//创建矩形图形元素;
	virtual Rect* CreateRectangle()=0;

};

#endif // !defined(AFX_GRAPHICFACTORY_H__B075C7A8_7615_485B_AE4F_1BF446BEDF48__INCLUDED_)