drawdoc.h

交互式画图的应用例子! 希望可以供大家学习

// DrawDoc.h : interface of the CDrawDoc class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_DRAWDOC_H__27BF09BB_BC44_416C_A026_BAAD2803A517__INCLUDED_)
#define AFX_DRAWDOC_H__27BF09BB_BC44_416C_A026_BAAD2803A517__INCLUDED_

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

//在这里创建一个新类CShape,专门用来存放图形坐标
class CShape:public CObject
{
protected:
	int Flag;//对象图形坐标类型:1为直线,2为矩形,3为椭圆
	int StartX;//图形的起点X坐标
	int StartY;//图形的起点Y坐标
	int EndX;//图形的终点X坐标
	int EndY;//图形的终点Y坐标
	CShape(){};//构造函数
	DECLARE_SERIAL(CShape)//定义宏，必须在类的缺省构造函数后面
public:
	CShape(int flag,int startx,int starty,int endx,int endy);//公共构造函数
	void Draw(CDC *pDC);//绘制图形

	virtual void Serialize(CArchive &ar);//声明系列化函数
};

class CDrawDoc : public CDocument
{
protected: // create from serialization only
	CDrawDoc();
	DECLARE_DYNCREATE(CDrawDoc)
	CObArray m_Shape;//声明一个CObArray类对象,用于存放CShape类对象

// Attributes
public:
	//增加两个成员函数AddShape和GetShape，
	//用于在m_Shape添加和获取Cshape 的对象指针
	void AddShape(int flag,int startx,int starty,int endx,int endy);
	CShape *GetShape(int index);

	virtual void DeleteContents();//声明删除函数,用于处理"新建"菜单

// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CDrawDoc)
	public:
	virtual BOOL OnNewDocument();
	virtual void Serialize(CArchive& ar);
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~CDrawDoc();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:

// Generated message map functions
protected:
	//{{AFX_MSG(CDrawDoc)
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_DRAWDOC_H__27BF09BB_BC44_416C_A026_BAAD2803A517__INCLUDED_)