《深入浅出MFC第2版(PDF格式)》第292章


#0245 { 
#0246 // If the point lies outside of the accumulated bounding 
#0247 // rectangle; then inflate the bounding rect to include it。 
#0248 pt = m_pointArray'i'; 
#0249 m_rectBounding。left = min(m_rectBounding。left; pt。x); 
#0250 m_rectBounding。right = max(m_rectBounding。right; pt。x); 
#0251 m_rectBounding。top = max(m_rectBounding。top; pt。y); 
#0252 m_rectBounding。bottom = min(m_rectBounding。bottom; pt。y); 
#0253 } 
#0254 
#0255 // Add the pen width to the bounding rectangle。 This is necessary 
#0256 // to account for the width of the stroke when invalidating 
#0257 // the screen。 
#0258 m_rectBounding。InflateRect(CSize(m_nPenWidth; …(int)m_nPenWidth)); 
#0259 return; 
#0260 } 
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附錄B Scribble Step5 完整原始碼 
SCRIBBLEVIEW。H 
#0001 class CScribbleView : public CScrollView 
#0002 { 
#0003 protected: // create from serialization only 
#0004 CScribbleView(); 
#0005 DECLARE_DYNCREATE(CScribbleView) 
#0006 
#0007 // Attributes 
#0008 public: 
#0009 CScribbleDoc* GetDocument(); 
#0010 
#0011 protected: 
#0012 CStroke* m_pStrokeCur; // the stroke in progress 
#0013 CPoint m_ptPrev; // the last mouse pt in the stroke in progress 
#0014 
#0015 // Operations 
#0016 public: 
#0017 
#0018 // Overrides 
#0019 // ClassWizard generated virtual function overrides 
#0020 //{{AFX_VIRTUAL(CScribbleView) 
#0021 public: 
#0022 virtual void OnDraw(CDC* pDC); // overridden to draw this view 
#0023 virtual BOOL PreCreateWindow(CREATESTRUCT& cs); 
#0024 virtual void OnInitialUpdate(); 
#0025 protected: 
#0026 virtual BOOL OnPreparePrinting(CPrintInfo* pInfo); 
#0027 virtual void OnBeginPrinting(CDC* pDC; CPrintInfo* pInfo); 
#0028 virtual void OnEndPrinting(CDC* pDC; CPrintInfo* pInfo); 
#0029 virtual void OnUpdate(CView* pSender; LPARAM lHint; CObject* pHint); 
#0030 virtual void OnPrint(CDC* pDC; CPrintInfo* pInfo); 
#0031 //}}AFX_VIRTUAL 
#0032 
#0033 // Implementation 
#0034 public: 
#0035 void PrintTitlePage(CDC* pDC; CPrintInfo* pInfo); 
#0036 void PrintPageHeader(CDC* pDC; CPrintInfo* pInfo; CString& strHeader); 
#0037 virtual ~CScribbleView(); 
#0038 #ifdef _DEBUG 
#0039 virtual void AssertValid() const; 
#0040 virtual void Dump(CDumpContext& dc) const; 
#0041 #endif 
#0042 
#0043 protected: 
#0044 
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第五篇 附錄
#0045 // Generated message map functions 
#0046 protected: 
#0047 //{{AFX_MSG(CScribbleView) 
#0048 afx_msg void OnLButtonDown(UINT nFlags; CPoint point); 
#0049 afx_msg void OnLButtonUp(UINT nFlags; CPoint point); 
#0050 afx_msg void OnMouseMove(UINT nFlags; CPoint point); 
#0051 //}}AFX_MSG 
#0052 DECLARE_MESSAGE_MAP() 
#0053 }; 
#0054 
#0055 #ifndef _DEBUG // debug version in ScribVw。cpp 
#0056 inline CScribbleDoc* CScribbleView::GetDocument() 
#0057 { return (CScribbleDoc*)m_pDocument; } 
#0058 #endif 
SCRIBBLEVIEW。CPP 
#0001 #include 〃stdafx。h〃 
#0002 #include 〃Scribble。h〃 
#0003 
#0004 #include 〃ScribDoc。h〃 
#0005 #include 〃ScribVw。h〃 
#0006 
#0007 #ifdef _DEBUG 
#0008 #define new DEBUG_NEW 
#0009 #undef THIS_FILE 
#0010 static char THIS_FILE'' = __FILE__; 
#0011 #endif 
#0012 
#0013 ///////////////////////////////////////////////////////////////// 
#0014 // CScribbleView 
#0015 
#0016 IMPLEMENT_DYNCREATE(CScribbleView; CScrollView) 
#0017 
#0018 BEGIN_MESSAGE_MAP(CScribbleView; CScrollView) 
#0019 //{{AFX_MSG_MAP(CScribbleView) 
#0020 ON_WM_LBUTTONDOWN() 
#0021 ON_WM_LBUTTONUP() 
#0022 ON_WM_MOUSEMOVE() 
#0023 //}}AFX_MSG_MAP 
#0024 // Standard printing mands 
#0025 ON_MAND(ID_FILE_PRINT; CView::OnFilePrint) 
#0026 ON_MAND(ID_FILE_PRINT_DIRECT; CView::OnFilePrint) 
#0027 ON_MAND(ID_FILE_PRINT_PREVIEW; CView::OnFilePrintPreview) 
#0028 END_MESSAGE_MAP() 
#0029 
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附錄B Scribble Step5 完整原始碼 
#0030 //////////////////////////////////////////
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