scribdoc.h

侯捷大师的《深入浅出MFC》的scribble源代码

// ScribDoc.h : interface of the CScribbleDoc class
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1995 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.
/////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////
// class CStroke
//
// A stroke is a series of connected points in the scribble drawing.
// A scribble document may have multiple strokes.

class CStroke : public CObject
{
public:
        CStroke(UINT nPenWidth);

protected:
        CStroke();
        DECLARE_SERIAL(CStroke)

// Attributes
protected:
        UINT                   m_nPenWidth;    // one pen width applies to entire stroke
public:
        CArray<CPoint,CPoint>  m_pointArray;   // series of connected points

// Operations
public:
        BOOL DrawStroke(CDC* pDC);

public:
        virtual void Serialize(CArchive& ar);
};

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

class CScribbleDoc : public CDocument
{
protected: // create from serialization only
        CScribbleDoc();
        DECLARE_DYNCREATE(CScribbleDoc)

// Attributes
protected:
        // The document keeps track of the current pen width on
        // behalf of all views. We'd like the user interface of
        // Scribble to be such that if the user chooses the Draw
        // Thick Line command, it will apply to all views, not just
        // the view that currently has the focus.

        UINT            m_nPenWidth;        // current user-selected pen width
        BOOL            m_bThickPen;        // TRUE if current pen is thick
		UINT            m_nThickWidth;
		UINT            m_nThinWidth;
		CPen            m_penCur;           // pen created according to
                                                                                // user-selected pen style (width)
public:
        CTypedPtrList<CObList,CStroke*>     m_strokeList;
        CPen*           GetCurrentPen() { return &m_penCur; }

// Operations
public:
        CStroke* NewStroke();

// Overrides
        // ClassWizard generated virtual function overrides
        //{{AFX_VIRTUAL(CScribbleDoc)
        public:
        virtual BOOL OnNewDocument();
        virtual void Serialize(CArchive& ar);
        virtual BOOL OnOpenDocument(LPCTSTR lpszPathName);
        virtual void DeleteContents();
        //}}AFX_VIRTUAL

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

protected:
        void            InitDocument();
		void            ReplacePen();

// Generated message map functions
protected:
        //{{AFX_MSG(CScribbleDoc)
	afx_msg void OnEditClearAll();
	afx_msg void OnPenThickOrThin();
	afx_msg void OnUpdateEditClearAll(CCmdUI* pCmdUI);
	afx_msg void OnUpdatePenThickOrThin(CCmdUI* pCmdUI);
	//}}AFX_MSG
        DECLARE_MESSAGE_MAP()
};