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#0043 if (!CDocument::OnNewDocument())
#0044 return FALSE;
#0045 InitDocument();
#0046 return TRUE;
#0047 }
#0048
#0049 /////////////////////////////////////////////////////////////////
#0050 // CScribbleDoc serialization
#0051
#0052 void CScribbleDoc::Serialize(CArchive& ar)
#0053 {
#0054 if (ar。IsStoring())
#0055 {
#0056 ar 》 m_sizeDoc;
#0061 }
#0062 m_strokeList。Serialize(ar);
#0063 }
#0064
#0065 ////////////////////////////////////////////////////////////////
#0066 // CScribbleDoc diagnostics
#0067
#0068 #ifdef _DEBUG
#0069 void CScribbleDoc::AssertValid() const
#0070 {
#0071 CDocument::AssertValid();
#0072 }
#0073
#0074 void CScribbleDoc::Dump(CDumpContext& dc) const
#0075 {
#0076 CDocument::Dump(dc);
#0077 }
#0078 #endif //_DEBUG
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附錄B Scribble Step5 完整原始碼
#0079
#0080 /////////////////////////////////////////////////////////////////
#0081 // CScribbleDoc mands
#0082
#0083 BOOL CScribbleDoc::OnOpenDocument(LPCTSTR lpszPathName)
#0084 {
#0085 if (!CDocument::OnOpenDocument(lpszPathName))
#0086 return FALSE;
#0087 InitDocument();
#0088 return TRUE;
#0089 }
#0090
#0091 void CScribbleDoc::DeleteContents()
#0092 {
#0093 while (!m_strokeList。IsEmpty())
#0094 {
#0095 delete m_strokeList。RemoveHead();
#0096 }
#0097 CDocument::DeleteContents();
#0098 }
#0099
#0100 void CScribbleDoc::InitDocument()
#0101 {
#0102 m_bThickPen = FALSE;
#0103 m_nThinWidth = 2; // default thin pen is 2 pixels wide
#0104 m_nThickWidth = 5; // default thick pen is 5 pixels wide
#0105 ReplacePen(); // initialize pen according to current width
#0106
#0107 // default document size is 800 x 900 screen pixels
#0108 m_sizeDoc = CSize(800;900);
#0109 }
#0110
#0111 CStroke* CScribbleDoc::NewStroke()
#0112 {
#0113 CStroke* pStrokeItem = new CStroke(m_nPenWidth);
#0114 m_strokeList。AddTail(pStrokeItem);
#0115 SetModifiedFlag(); // Mark the document as having been modified; for
#0116 // purposes of confirming File Close。
#0117 return pStrokeItem;
#0118 }
#0119
#0120
#0121
#0122
#0123 /////////////////////////////////////////////////////////////////
#0124 // CStroke
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第五篇 附錄
#0125
#0126 IMPLEMENT_SERIAL(CStroke; CObject; 2)
#0127 CStroke::CStroke()
#0128 {
#0129 // This empty constructor should be used by serialization only
#0130 }
#0131
#0132 CStroke::CStroke(UINT nPenWidth)
#0133 {
#0134 m_nPenWidth = nPenWidth;
#0135 m_rectBounding。SetRectEmpty();
#0136 }
#0137
#0138 void CStroke::Serialize(CArchive& ar)
#0139 {
#0140 if (ar。IsStoring())
#0141 {
#0142 ar m_rectBounding;
#0149 WORD w;
#0150 ar 》》 w;
#0151 m_nPenWidth = w;
#0152 m_pointArray。Serialize(ar);
#0153 }
#0154 }
#0155
#0156 BOOL CStroke::DrawStroke(CDC* pDC)
#0157 {
#0158 CPen penStroke;
#0159 if (!penStroke。CreatePen(PS_SOLID; m_nPenWidth; RGB(0;0;0)))
#0160 return FALSE;
#0161 CPen* pOldPen = pDC…》SelectObject(&penStroke);
#0162 pDC…》MoveTo(m_pointArray'0');
#0163 for (int i=1; i 《 m_pointArray。GetSize(); i++)
#0164 {
#0165 pDC…》LineTo(m_pointArray'i');
#0166 }
#0167
#0168 pDC…》SelectObject(pOldPen);
#0169 return TRUE;
#0170 }
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附錄B Scribble Step5 完整原始碼
#0171 void CScribbleDoc::OnEditClearAll()
#0172 {
#0173 DeleteContents();
#0174 SetModifiedFlag(); // Mark the document as having been modified; for
#0175 // purposes of confirming File Close。
#0176 UpdateAllViews(NULL);
#0177 }
#0178
#0179 void CScribbleDoc::OnPenThickOrThin()
#0180 {
#0181 // Toggle the state of the pen between thin or thick。
#0182 m_bThickPen = !m_bThickPen;
#0183
#0184 // Change the current pen to reflect the new user…specified width。
#0185 ReplacePen();
#0186 }
#0187
#0188 void CScribbleDoc::ReplacePen()
#0189 {
#0190 m_nPenWidth = m_bThickPen? m_nThickWidth : m_nThinWidth;
#0191
#0192 // Change the current pen to reflect the new user…specified width。
#0193 m_penCur。DeleteObject();
#0194 m_penCur。CreatePen(PS_SOLID; m_nPenWidth; RGB(0;0;0)); // solid black
#0195 }
#0196
#0197 void CScribbleDoc::OnUpdateEditClearAll(CCmdUI* pCmdUI)
#0198 {
#0199 // Enable the mand user interface object (menu item or tool bar
#0200 // button) if the document is non…empty; i。e。; has at least one stroke。
#0201 pCmdUI…》Enable(!m_strokeList。IsEmpty());
#0202 }
#0203
#0204 void CScribbleDoc::OnUpdatePenThickOrThin(CCmdUI* pCmdUI)
#0205 {
#0206 // Add check mark to Draw Thick Line menu item; if the current
#0207 // pen width is 〃thick〃。
#0208 pCmdUI…》SetCheck(m_bThickPen);
#0209 }
#0210
#0211 void CScribbleDoc::OnPenWidths()
#0212 {
#0213 CPenWidthsDlg dlg;
#0214 // Ini