graphicsview.h

MFC图形功能演示

// GraphicsView.h : interface of the CGraphicsView class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_GRAPHICSVIEW_H__F6BBC990_3C92_4612_B276_58605FB8516D__INCLUDED_)
#define AFX_GRAPHICSVIEW_H__F6BBC990_3C92_4612_B276_58605FB8516D__INCLUDED_

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


class CGraphicsView : public CView
{
protected: // create from serialization only
	CGraphicsView();
	DECLARE_DYNCREATE(CGraphicsView)

// Attributes
public:
	CGraphicsDoc* GetDocument();

// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CGraphicsView)
	public:
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	protected:
	virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);
	virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);
	virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);
	//}}AFX_VIRTUAL

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

protected:
	int m_nDrawType;
	int m_nLineWidth;
	BOOL m_bDrawing;
	CDC* m_pMemDC;
	CBitmap* m_pBitmap;
	int m_nMaxX;
	int m_nMaxY;
	CPoint m_ptStart;
	CPoint m_ptOld;
	COLORREF m_cLineColor;
	COLORREF m_cFillColor;


// Generated message map functions
protected:
	//{{AFX_MSG(CGraphicsView)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
	afx_msg void OnSelectDrawType(UINT nID);
	afx_msg void OnUpdateSelectDrawType(CCmdUI* pCmdUI);
	afx_msg void OnSelectLineWidth(UINT nID);
	afx_msg void OnUpdateSelectLineWidth(CCmdUI* pCmdUI);
};

#ifndef _DEBUG  // debug version in GraphicsView.cpp
inline CGraphicsDoc* CGraphicsView::GetDocument()
   { return (CGraphicsDoc*)m_pDocument; }
#endif

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

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

#endif // !defined(AFX_GRAPHICSVIEW_H__F6BBC990_3C92_4612_B276_58605FB8516D__INCLUDED_)