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- // scribdoc.cpp : implementation of the CScribDoc class
- //
- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and Microsoft
- // QuickHelp and/or WinHelp documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
-
-
- #include "stdafx.h"
- #include "scribble.h"
-
- #include "scribdoc.h"
- #include "pendlg.h"
-
- #ifdef _DEBUG
- #undef THIS_FILE
- static char BASED_CODE THIS_FILE[] = __FILE__;
- #endif
-
- /////////////////////////////////////////////////////////////////////////////
- // CScribDoc
-
- IMPLEMENT_DYNCREATE(CScribDoc, CDocument)
-
- BEGIN_MESSAGE_MAP(CScribDoc, CDocument)
- //{{AFX_MSG_MAP(CScribDoc)
- // NOTE - the ClassWizard will add and remove mapping macros here.
- // DO NOT EDIT what you see in these blocks of generated code !
- ON_COMMAND(ID_EDIT_CLEAR_ALL, OnEditClearAll)
- ON_UPDATE_COMMAND_UI(ID_EDIT_CLEAR_ALL, OnUpdateEditClearAll)
- ON_COMMAND(ID_PEN_THICK_OR_THIN, OnPenThickOrThin)
- ON_UPDATE_COMMAND_UI(ID_PEN_THICK_OR_THIN, OnUpdatePenThickOrThin)
- ON_COMMAND(ID_PEN_WIDTHS, OnPenWidths)
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
-
- /////////////////////////////////////////////////////////////////////////////
- // CScribDoc construction/destruction
-
- CScribDoc::CScribDoc()
- {
- // TODO: add one-time construction code here
- }
-
- CScribDoc::~CScribDoc()
- {
- }
-
- /////////////////////////////////////////////////////////////////////////////
- void CScribDoc::DeleteContents()
- {
- while (!m_strokeList.IsEmpty())
- {
- delete m_strokeList.RemoveHead();
- }
- }
-
- void CScribDoc::InitDocument()
- {
- m_bThickPen = FALSE;
- m_nThinWidth = 2; // default thin pen is 2 pixels wide
- m_nThickWidth = 5; // default thick pen is 5 pixels wide
- ReplacePen(); // initialze pen according to current width
- }
-
- BOOL CScribDoc::OnNewDocument()
- {
- if (!CDocument::OnNewDocument())
- return FALSE;
- InitDocument();
- return TRUE;
- }
-
- BOOL CScribDoc::OnOpenDocument(const char* pszPathName)
- {
- if (!CDocument::OnOpenDocument(pszPathName))
- return FALSE;
- InitDocument();
- return TRUE;
- }
-
- /////////////////////////////////////////////////////////////////////////////
- // CScribDoc serialization
-
- void CScribDoc::Serialize(CArchive& ar)
- {
- if (ar.IsStoring())
- {
- }
- else
- {
- }
- m_strokeList.Serialize(ar);
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- // CScribDoc diagnostics
-
- #ifdef _DEBUG
- void CScribDoc::AssertValid() const
- {
- CDocument::AssertValid();
- }
-
- void CScribDoc::Dump(CDumpContext& dc) const
- {
- CDocument::Dump(dc);
- }
-
- #endif //_DEBUG
-
- /////////////////////////////////////////////////////////////////////////////
- // CScribDoc commands
-
- void CScribDoc::OnEditClearAll()
- {
- DeleteContents();
- SetModifiedFlag(); // Mark the document as having been modified, for
- // purposes of confirming File Close.
- UpdateAllViews(NULL);
- }
-
- void CScribDoc::OnUpdateEditClearAll(CCmdUI* pCmdUI)
- {
- // Enable the command user interface object (menu item or tool bar
- // button) if the document is non-empty, i.e., has at least one stroke.
- pCmdUI->Enable(!m_strokeList.IsEmpty());
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- void CScribDoc::OnPenThickOrThin()
- {
- // Toggle the state of the pen between thin or thick.
- m_bThickPen = !m_bThickPen;
-
- // Change the current pen to reflect the new user-specified width.
- ReplacePen();
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- void CScribDoc::OnUpdatePenThickOrThin(CCmdUI* pCmdUI)
- {
- // Add check mark to Draw Thick Line menu item, if the current
- // pen width is "thick".
- pCmdUI->SetCheck(m_bThickPen);
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- void CScribDoc::OnPenWidths()
- {
- CPenWidthsDlg dlg;
- // Initialize dialog data
- dlg.m_nThinWidth = m_nThinWidth;
- dlg.m_nThickWidth = m_nThickWidth;
-
- // Invoke the dialog box
- if (dlg.DoModal() == IDOK)
- {
- // retrieve the dialog data
- m_nThinWidth = dlg.m_nThinWidth;
- m_nThickWidth = dlg.m_nThickWidth;
-
- // Update the pen that is used by views when drawing new strokes,
- // to reflect the new pen width definitions for "thick" and "thin".
- ReplacePen();
- }
- }
-
- /////////////////////////////////////////////////////////////////////////////
- void CScribDoc::ReplacePen()
- {
- m_nPenWidth = m_bThickPen? m_nThickWidth : m_nThinWidth;
-
- // Change the current pen to reflect the new user-specified width.
- m_penCur.DeleteObject();
- m_penCur.CreatePen(PS_SOLID, m_nPenWidth, RGB(0,0,0)); // solid black
- }
-
- /////////////////////////////////////////////////////////////////////////////
- CStroke* CScribDoc::NewStroke()
- {
- CStroke* pStrokeItem = new CStroke(m_nPenWidth);
- m_strokeList.AddTail(pStrokeItem);
- SetModifiedFlag(); // Mark the document as having been modified, for
- // purposes of confirming File Close.
- return pStrokeItem;
- }
-
- /////////////////////////////////////////////////////////////////////////////
- POSITION CScribDoc::GetFirstStrokePos()
- {
- return m_strokeList.GetHeadPosition();
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- CStroke* CScribDoc::GetNextStroke(POSITION& pos)
- {
- return (CStroke*)m_strokeList.GetNext(pos);
- }
-
-
- /////////////////////////////////////////////////////////////////////////////
- // CStroke
-
- // Each time we change what gets serialized, we change the
- // schema number.
- IMPLEMENT_SERIAL(CStroke, CObject, 1)
- /////////////////////////////////////////////////////////////////////////////
- CStroke::CStroke()
- {
- // this empty constructor should be used by serialization only
- }
-
- /////////////////////////////////////////////////////////////////////////////
- CStroke::CStroke(UINT nPenWidth)
- {
- m_nPenWidth = nPenWidth;
- }
-
- /////////////////////////////////////////////////////////////////////////////
- void CStroke::AddPoint(CPoint pt)
- {
- m_pointArray.Add(MAKELONG(pt.x, pt.y));
- }
-
- /////////////////////////////////////////////////////////////////////////////
- BOOL CStroke::DrawStroke(CDC* pDC)
- {
- CPen penStroke;
- if (!penStroke.CreatePen(PS_SOLID, m_nPenWidth, RGB(0,0,0)))
- return FALSE;
- CPen* pOldPen = pDC->SelectObject(&penStroke);
- pDC->MoveTo(GetPoint(0));
- for (int i=1; i < m_pointArray.GetSize(); i++)
- {
- pDC->LineTo(GetPoint(i));
- }
-
- pDC->SelectObject(pOldPen);
- return TRUE;
- }
-
- /////////////////////////////////////////////////////////////////////////////
- void CStroke::Serialize(CArchive& ar)
- {
- if (ar.IsStoring())
- {
- ar << (WORD)m_nPenWidth;
- m_pointArray.Serialize(ar);
- }
- else
- {
- WORD w;
- ar >> w;
- m_nPenWidth = w;
- m_pointArray.Serialize(ar);
- }
- }
-
-
-
-