richeditpage.cpp

MFC窗口程序设计源代码。相信大家看得懂。

// @parm    DWORD  | dwCookie | handle to the file in which will be 
//								the rich edit control content
// @parm    LPBYTE | pbBuff   | Pointer to a buffer to write to .
//                              For a stream-out (write) operation, 
//                              the buffer contains data from the 
//								control that the callback function 
//								writes to some storage 
// @parm    LONG   | cb       | Number of bytes to write 
// @parm    LONG   | *pcb     | Pointer to a variable that the 
//								callback function sets to the number 
//								of bytes actually write  
//----------------------------------------------------------------------------
// @prog 
// Frunza Adriana
// @revs 
// 20-09-2001 - First implementation
//----------------------------------------------------------------------------
// @todo 
//----------------------------------------------------------------------------
	
DWORD CALLBACK CRicheditPage::MyStreamOutCallback(DWORD dwCookie, 
								LPBYTE pbBuff, LONG cb, LONG *pcb)
{
   CFile* pFile = (CFile*) dwCookie;
   pFile->Write(pbBuff, cb);
   *pcb = cb;
   return 0;
}

// function added with classwizard in 20 september 2001
void CRicheditPage::OnFileSaveAs() 
{
	m_nFileNew++;
if ( m_bBeginWriting )
{ 
	if ( m_nBeginWriting==1)
	{

	// I define the file dialog
	CFileDialog fileDlg(FALSE, "rtf", NULL, OFN_PATHMUSTEXIST|OFN_OVERWRITEPROMPT,
                       "rtf files(*.rtf)|*.rtf|");
	// display the file dialog
	if (fileDlg.DoModal () == IDCANCEL) 
	{
		m_nBeginWriting=0;
		m_rtf.SetModify(); 
		return;
	}

	// I obtain the file name
	CString filename = fileDlg.GetPathName ();
    m_strFilename=filename; 
	CFile fis;
	
	EDITSTREAM es;
	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback; 

	// I open the file with tne modeWrite and modeCreate mode
	fis.Open(filename, CFile::modeCreate | CFile::modeWrite);

	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback;
	// I put the content in the file
	m_rtf.StreamOut(SF_RTF, es);
	fis.Close();
	m_rtf.SetModify(FALSE); 
	}// end m_nBeginWriting == 1
	else if ( m_nBeginWriting >1)
	{

	CFile fis;
	
	EDITSTREAM es;
	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback; 
	// I open the file with tne modeWrite mode
	fis.Open(m_strFilename,  CFile::modeWrite);
	// I put the content in the file
	m_rtf.StreamOut(SF_RTF, es);
	m_rtf.SetModify(FALSE); 
	fis.Close(); 
	}
}//end if begin writing

else if ( m_bFisNou)
{ 
	if ( m_nFileNew == 1)
	{

	// define the dialog window
	CFileDialog fileDlg(FALSE, "rtf", NULL, OFN_PATHMUSTEXIST|OFN_OVERWRITEPROMPT,
                       "rtf files(*.rtf)|*.rtf|");
	// display the dialog window
	if (fileDlg.DoModal () == IDCANCEL) 
	{
		m_nFileNew=0;
		m_rtf.SetModify(); 
		return;
	}

	// obtain the file name
	CString filename = fileDlg.GetPathName ();
	m_strFilename=filename;
	CFile fis;
	
	EDITSTREAM es;
	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback; 
	// I open the file with tne modeWrite and modeCreate mode
	fis.Open(filename, CFile::modeCreate | CFile::modeWrite);

	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback;
	// put the content in the file
	m_rtf.StreamOut(SF_RTF, es);
	fis.Close();
	m_rtf.SetModify(FALSE); 
	}// end m_nFileNew==1
	else if ( m_nFileNew > 1 )
	{

	CFile fis;
	
	EDITSTREAM es;
	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback; 
	// open the file with the modeWrite mode
	fis.Open(m_strFilename,  CFile::modeWrite);
	// put the content in the file
	m_rtf.StreamOut(SF_RTF, es);
	m_rtf.SetModify(FALSE); 
	fis.Close(); 
	}
}//end if file new
else if (m_bFisOpen)// file open
{
	// if I want to save the file that I have opened and I did not 
	// CREATED and I have changed the content, I don't want to appear 
	// the dialog box which asks me for the name to save the file, but
	// I want the file to be saved with the name the file has already

	CFile fis;
	
	EDITSTREAM es;
	es.dwCookie = (DWORD) &fis;
	es.pfnCallback = MyStreamOutCallback; 
	// open the file with the modeWrite mode
	fis.Open(m_strFilename,  CFile::modeWrite);
	// put the content in the file
	m_rtf.StreamOut(SF_RTF, es);
	m_rtf.SetModify(FALSE); 
	fis.Close(); 
}// end file open
  CString msg;	
  msg.Format("MyRtf - %s" , m_strFilename );
  SetWindowText ( msg ) ;

}

// function added with classwizard in 20 september 2001
void CRicheditPage::OnFilePrint() 
{
	Print(TRUE);
}
// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnBold() 
{
	m_rtf.SetSelectionBold();
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnItalic() 
{
	m_rtf.SetSelectionItalic();	
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnUnderline() 
{
	m_rtf.SetSelectionUnderline();	
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnEditUndo() 
{
	// if possible undo the last operation
	if (m_rtf.CanUndo())   
		m_rtf.Undo();	
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnEditCut() 
{
	// Delete the selected text and copy it to the clipboard.
	m_rtf.Cut();	
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnEditCopy() 
{
	// Copy the text to the clipboard.   
    m_rtf.Copy();	
}

// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnEditPaste() 
{
	// Paste the clipboard data if possible.
	if (m_rtf.CanPaste())
		 // Replace the selected text with the text in the clipboard.
		 m_rtf.Paste();
}


// FUNCTION ADDED ON SATURDAY 22 SEPTEMBER 2001
void CRicheditPage::OnColour() 
{
	m_rtf.SetColour();	
}


// function added with classwizard on Friday 21 september 2001
void CRicheditPage::OnClose() 
{
	// Reset the modified state only if the text has been modified.
   if (m_rtf.GetModify()) 
	{ 
	   MessageBeep(0xFFFFFFFF);	
	   int nResp = MessageBox(" Do you want to save the changes made to your document?", "MyRtf",MB_ICONWARNING | MB_YESNOCANCEL);
		if ( nResp  == IDYES )
		{
			OnFileSave();
			m_rtf.SetModify(FALSE);
			CDialog::OnClose();
		}
		else if ( nResp == IDNO )
			CDialog::OnClose(); 
	    else if ( nResp == IDCANCEL )
		{/* do not close the application*/}
	}
   	else CDialog::OnClose(); 
}

// function added with classwizard on Saturday 21 september 2001
void CRicheditPage::OnParagraphLeft() 
{
	m_rtf.SetParagraphLeft();		
}

// function added with classwizard on Monday 24 september 2001
void CRicheditPage::OnParagraphCenter() 
{
	m_rtf.SetParagraphCenter();			
}

// function added with classwizard on Monday 24 september 2001
void CRicheditPage::OnParagraphRight() 
{
	m_rtf.SetParagraphRight();			
}

// function added with classwizard on Monday 24 september 2001
void CRicheditPage::OnParagraphBulleted() 
{
	m_rtf.SetParagraphBulleted();				
}

// function added with classwizard on Wednesday 26 september 2001
void CRicheditPage::OnFormatFont() 
{

	CFontDialog dlg( NULL , CF_BOTH | CF_EFFECTS );
	if ( dlg.DoModal() != IDOK )
		return;

	if ( dlg.IsUnderline() )
	{
		m_rtf.SetSelectionUnderline ();
	}
	
	CString faceName = dlg.GetFaceName();
	m_rtf.SetFontName( faceName ) ;
	
	COLORREF clr= dlg.GetColor ();
	m_rtf.SetColor(clr); 

	int nPointSize = dlg.GetSize();
	m_rtf.SetFontSize( nPointSize ) ;

}

// function added with classwizard on Tuesday 16 octomber 2001
// select all of the text
void CRicheditPage::OnEditSelectAll() 
{
	m_rtf.SetSel(0, -1);
}

// function added with classwizard on Tuesday 16 octomber 2001
// delete the current selection
void CRicheditPage::OnEditDelete() 
{
	m_rtf.Clear();
}


// function added with classwizard on Saturday 20 octomber 2001
// this code is taken from dlgcbr32
BOOL CRicheditPage::OnToolTipText(UINT, NMHDR* pNMHDR, LRESULT* pResult)
{    
		ASSERT(pNMHDR->code == TTN_NEEDTEXTA || pNMHDR->code == TTN_NEEDTEXTW);

	// allow top level routing frame to handle the message
	if (GetRoutingFrame() != NULL)
		return FALSE;

	// need to handle both ANSI and UNICODE versions of the message
	TOOLTIPTEXTA* pTTTA = (TOOLTIPTEXTA*)pNMHDR;
	TOOLTIPTEXTW* pTTTW = (TOOLTIPTEXTW*)pNMHDR;
	TCHAR szFullText[256];
	CString strTipText;
	UINT nID = pNMHDR->idFrom;
	if (pNMHDR->code == TTN_NEEDTEXTA && (pTTTA->uFlags & TTF_IDISHWND) ||
		pNMHDR->code == TTN_NEEDTEXTW && (pTTTW->uFlags & TTF_IDISHWND))
	{
		// idFrom is actually the HWND of the tool
		nID = ((UINT)(WORD)::GetDlgCtrlID((HWND)nID));
	}

	if (nID != 0) // will be zero on a separator
	{
		AfxLoadString(nID, szFullText);
		// this is the command id, not the button index
		AfxExtractSubString(strTipText, szFullText, 1, '\n');
	}
#ifndef _UNICODE
	if (pNMHDR->code == TTN_NEEDTEXTA)
		lstrcpyn(pTTTA->szText, strTipText,
			(sizeof(pTTTA->szText)/sizeof(pTTTA->szText[0])));
	else
		_mbstowcsz(pTTTW->szText, strTipText,
			(sizeof(pTTTW->szText)/sizeof(pTTTW->szText[0])));
#else
	if (pNMHDR->code == TTN_NEEDTEXTA)
		_wcstombsz(pTTTA->szText, strTipText,
			(sizeof(pTTTA->szText)/sizeof(pTTTA->szText[0])));
	else
		lstrcpyn(pTTTW->szText, strTipText,
			(sizeof(pTTTW->szText)/sizeof(pTTTW->szText[0])));
#endif
	*pResult = 0;

	// bring the tooltip window above other popup windows
	::SetWindowPos(pNMHDR->hwndFrom, HWND_TOP, 0, 0, 0, 0,
		SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOMOVE);

	return TRUE;    // message was handled
}



/////////////////////////////////////////////////////////////////////////////
// CRicheditPage::OnEnterIdle
//      OnEnterIdle updates the status bar when there's nothing better to do.
//      This code is based on CFrameWnd::OnEnterIdle.

void CRicheditPage::OnEnterIdle(UINT nWhy, CWnd* pWho)
{
	if (nWhy != MSGF_MENU || m_nIDTracking == m_nIDLastMessage)
		return;

	ASSERT(m_nIDTracking == m_nIDLastMessage);
}

void CRicheditPage::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);
	
	// TODO: Add your message handler code here
	// this code is taken from Ftptree MSDN sample