editpaddoc.h

一个完整的编辑器的代码（很值得参考

///////////////////////////////////////////////////////////////////////////
//  File:    editpaddoc.h
//  Version: 1.1.0.4
//  Updated: 19-Jul-1998
//
//  Document core
//
//  Copyright:  Ferdinand Prantl, portions by Stcherbatchenko Andrei
//  E-mail:     [e-mail]
//
//  You are free to use or modify this code to the following restrictions:
//  - Acknowledge me somewhere in your about box, simple "Parts of code by.."
//  will be enough. If you can't (or don't want to), contact me personally.
//  - LEAVE THIS HEADER INTACT
////////////////////////////////////////////////////////////////////////////

// editpaddoc.h : interface of the CEditPadDoc class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_EDITPADDOC_H__BC121A96_FEE3_11D2_9ACA_00600875DD5F__INCLUDED_)
#define AFX_EDITPADDOC_H__BC121A96_FEE3_11D2_9ACA_00600875DD5F__INCLUDED_

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

#include "ccrystaltextbuffer.h"
#include "filevent.h"

class CEditPadDoc : public CDocument, public CFileEvent
  {
protected :                   // create from serialization only
    CEditPadDoc ();
    DECLARE_DYNCREATE (CEditPadDoc)

    // Attributes
public :
class CEditPadTextBuffer : public CCrystalTextBuffer
      {
private :
        CEditPadDoc * m_pOwnerDoc;
public :
        CEditPadTextBuffer (CEditPadDoc * pDoc)
        {
          m_pOwnerDoc = pDoc;
        };
        BOOL GetLine( int nLineIndex, CString &strLine )
        {
	        int		nLineLength = CCrystalTextBuffer::GetLineLength( nLineIndex );

	        if( nLineLength <= 0 )
		        return FALSE;

	        _tcsncpy ( strLine.GetBuffer( nLineLength ), CCrystalTextBuffer::GetLineChars( nLineIndex ), nLineLength );
	        strLine.ReleaseBuffer( nLineLength );

	        return TRUE;
        }
        virtual void SetModified (BOOL bModified = TRUE)
        {
          CCrystalTextBuffer::SetModified (bModified);
          m_pOwnerDoc->SetModifiedFlag (bModified);
          if (bModified)
            {
              CString sTitle;
              CWnd *pWnd = AfxGetMainWnd ();
              pWnd->GetWindowText (sTitle);
              if (sTitle.Right (2) != _T(" *"))
                {
                  sTitle += _T (" *");
                  pWnd->SetWindowText (sTitle);
                }
            }
          else
            {
              CString sTitle;
              CWnd *pWnd = AfxGetMainWnd ();
              pWnd->GetWindowText (sTitle);
              if (sTitle.Right (2) == _T(" *"))
                {
                  sTitle = sTitle.Left (sTitle.GetLength () - 2);
                  pWnd->SetWindowText (sTitle);
                }
            }
        };
      };

    CEditPadTextBuffer m_xTextBuffer;
  	virtual void OnFileEvent (WPARAM wEvent, LPCTSTR pszPathName);

    // Operations
public:

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

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

    // Generated message map functions
    //{{AFX_MSG(CEditPadDoc)
    afx_msg void OnReadOnly ();
    afx_msg void OnUpdateReadOnly (CCmdUI * pCmdUI);
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP ()
  };

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

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

#endif // !defined(AFX_EDITPADDOC_H__BC121A96_FEE3_11D2_9ACA_00600875DD5F__INCLUDED_)