repos_ecs/其他2015后/SkinST/SkinBuilder/SPMaskEditT.h

/********************************************
** 工作室：S&P工作室
** 作者	 ：张东斌
** 日期  ：2006年3月
*********************************************/
#if !defined(__XTMASKEDITEX_H__)
#define __XTMASKEDITEX_H__

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

//////////////////////////////////////////////////////////////////////
// Summary:
//     CXTMaskEditT is a template class. It allows text masking to be
//     applied to the control to format it for special editing restrictions.
//////////////////////////////////////////////////////////////////////
template < class TBase >
class CXTMaskEditT : public TBase
{
public:

	//-----------------------------------------------------------------------
	// Summary:
	//     Constructs a CXTMaskEditT object
	//-----------------------------------------------------------------------
	CXTMaskEditT() : m_nStartChar( 0 ) , m_nEndChar( 0 ) , m_bOverType( true ) , m_bUseMask( true ) , m_bRedo( false ) , m_bModified( false ) , m_strWindowText( _T( "" ) ) , m_strMask( _T( "" ) ) , m_strLiteral( _T( "" ) ) , m_strDefault( _T( "" ) ) , m_strUndoBuffer( _T( "" ) ) , m_chPrompt( _T( '_' ) )
	{
	}

public:

	//-----------------------------------------------------------------------
	// Parameters:
	//     bUseMask - true to enable the mask. false to disable the mask.
	// Summary:
	//     Call this member function to enable or disable the mask for the mask
	//     edit control.
	//-----------------------------------------------------------------------
	void SetUseMask( bool bUseMask )
	{
		m_bUseMask = bUseMask;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to determine if the mask for the edit
	//     control can be used.
	// Returns:
	//     true if the mask can be used, otherwise returns false.
	//-----------------------------------------------------------------------
	bool CanUseMask()
	{
		return m_bUseMask && ( ( GetStyle() & ES_READONLY ) == 0 );
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to enable or disable type over, also
	//     known as insert mode.
	// Parameters:
	//     bOverType - true to enable type over.
	//-----------------------------------------------------------------------
	void SetOverType( bool bOverType )
	{
		m_bOverType = bOverType;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to determine if type over has been enabled.
	// Returns:
	//     true if type over is enabled, otherwise returns false.
	//-----------------------------------------------------------------------
	bool CanOverType()
	{
		return m_bOverType;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to determine if the index specified
	//     by 'iPos' is a valid index for the currently displayed edit text.
	// Parameters:
	//     iPos - Index of the character to check.
	// Returns:
	//     true if the index is valid, otherwise returns false.
	//-----------------------------------------------------------------------
	bool PosInRange( int iPos )
	{
		return ( ( iPos >= 0 ) && ( iPos < m_strLiteral.GetLength() ) );
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function retrieves the character that is currently used as
	//     the mask prompt. The mask prompt indicates that the field is editable.
	// Returns:
	//     A TCHAR data type.
	//-----------------------------------------------------------------------
	TCHAR GetPromptChar()
	{
		return m_chPrompt;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to set the prompt character that is
	//     displayed to the user that indicates the field can be edited.
	// Parameters:
	//     ch - A TCHAR data type.
	//-----------------------------------------------------------------------
	void SetPromptChar( TCHAR ch )
	{
		if ( m_chPrompt == ch )
		{
			return;
		}

		for ( int i = 0; i < m_strLiteral.GetLength(); i++ )
		{
			if ( m_strLiteral[i] == m_chPrompt )
			{
				m_strLiteral.SetAt( i,ch );
			}
		}

		for ( int j = 0; j < m_strWindowText.GetLength(); j++ )
		{
			if ( m_strWindowText[j] == m_chPrompt )
			{
				m_strWindowText.SetAt( j,ch );
			}
		}

		m_chPrompt = ch;
		SetWindowText( m_strWindowText );
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to perform a cut operation using the
	//     currently selected text.
	//-----------------------------------------------------------------------
	void MaskCut()
	{
		if ( !CanUseMask() )
		{
			DefWindowProc( WM_CUT,0,0 );
		}
		else
		{
			MaskCopy();
			MaskClear();

			m_bRedo = false;
			m_bModified = true;
			SetWindowText( m_strWindowText );

			CorrectPosition( m_nStartChar );
			m_nEndChar = m_nStartChar;
			SetSel( m_nStartChar,m_nEndChar );
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to perform a copy operation using the
	//     currently selected text.
	//-----------------------------------------------------------------------
	void MaskCopy()
	{
		if ( !CanUseMask() )
		{
			DefWindowProc( WM_COPY,0,0 );
		}
		else
		{
			GetSel( m_nStartChar,m_nEndChar );

			CString	strBuffer;
			int		i;
			for ( i = m_nStartChar; i < m_nEndChar; ++i )
			{
				if ( m_strLiteral.GetAt( i ) == m_chPrompt )
				{
					if ( m_strWindowText.GetAt( i ) == m_chPrompt )
						continue;

					strBuffer += m_strWindowText.GetAt( i );
				}
			}

			CopyToClipboard( strBuffer );
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to perform a paste operation using the
	//     current clipboard text.
	//-----------------------------------------------------------------------
	void MaskPaste()
	{
		if ( !CanUseMask() )
		{
			DefWindowProc( WM_PASTE,0,0 );
		}
		else
		{
			GetSel( m_nStartChar,m_nEndChar );
			MaskClear();

			if ( !OpenClipboard() )
				return;

			LPTSTR	lptstrPaste	= NULL;
			HGLOBAL	hglbPaste	= ::GetClipboardData( CF_TEXT );
			if ( hglbPaste != NULL )
			{
				lptstrPaste = ( TCHAR * ) ::GlobalLock( hglbPaste );
				if ( lptstrPaste != NULL )
				{
					::GlobalUnlock( hglbPaste );
				}
			}

			::CloseClipboard();

			int	i, x = m_nStartChar, iLen = ( int ) _tcslen( lptstrPaste );

			for ( i = 0; i < iLen; ++i )
			{
				UINT	ch	= lptstrPaste[i];

				if ( CheckChar( ch,false ) )
				{
					InsertCharAt( x,( TCHAR ) ch );
					++x;

					if ( x == m_strWindowText.GetLength() )
						break;
				}
			}

			m_bRedo = false;
			m_bModified = true;
			SetWindowText( m_strWindowText );

			m_nEndChar = m_nStartChar;
			SetSel( m_nStartChar,m_nEndChar );
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to clear the current text selection.
	//-----------------------------------------------------------------------
	void MaskClear()
	{
		if ( !CanUseMask() )
		{
			DefWindowProc( WM_CLEAR,0,0 );
		}
		else
		{
			if ( m_nStartChar == m_nEndChar )
				return;

			// check to see if there is anything left to delete
			int	iLength	= m_strWindowText.GetLength();

			int	i;
			for ( i = m_nStartChar; i < iLength; ++i )
			{
				TCHAR	ch1	= m_strLiteral.GetAt( i );
				TCHAR	ch2	= m_strWindowText.GetAt( i );

				if ( ( ch1 == m_chPrompt ) && ( ch2 != m_chPrompt ) )
				{
					break;
				}
			}

			if ( i == iLength )
			{
				::MessageBeep( ( UINT ) - 1 );
				return;
			}

			for ( i = m_nStartChar; i < m_nEndChar; ++i )
			{
				if ( m_strLiteral.GetAt( i ) == m_chPrompt )
				{
					DeleteCharAt( m_nStartChar );
				}
			}

			m_bRedo = false;
			m_bModified = true;
			SetWindowText( m_strWindowText );

			m_nEndChar = m_nStartChar;
			SetSel( m_nStartChar,m_nEndChar );
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to undo the previous action.
	//-----------------------------------------------------------------------
	void MaskUndo()
	{
		if ( !CanUseMask() )
		{
			DefWindowProc( EM_UNDO,0,0 );
		}
		else
		{
			GetSel( m_nStartChar,m_nEndChar );

			if ( m_bRedo )
			{
				m_bRedo = false;
				m_bModified = true;
				SetWindowText( m_strRedoBuffer );
			}
			else
			{
				m_bRedo = true;
				m_bModified = true;
				GetWindowText( m_strRedoBuffer );
				SetWindowText( m_strUndoBuffer );
			}

			GetWindowText( m_strWindowText );
			m_nEndChar = m_nStartChar;
			SetSel( m_nStartChar,m_nEndChar );
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is called to select all text in the mask edit
	//     control.
	//-----------------------------------------------------------------------
	void MaskSelectAll()
	{
		if ( !CanUseMask() )
		{
			CEdit::SetSel( 0,-1 );
		}
		else
		{
			m_nStartChar = 0;
			CorrectPosition( m_nStartChar );
			SetSel( m_nStartChar,-1 );
		}
	}

	//-----------------------------------------------------------------------}
	// Summary:
	//     This member function is called to determine if the text has been modified.
	// Returns:
	//     true if the text has changed, otherwise returns false.
	//-----------------------------------------------------------------------
	bool IsModified()
	{
		return m_bModified;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This method called to set masked text for the edit control.
	// Parameters:
	//     lpszMaskedText - Text string without mask.
	// Remarks:
	//     If a mask is used, then the mask will be applied to the text
	//     in lpszMaskedText.
	//-----------------------------------------------------------------------
	void SetMaskedText( LPCTSTR lpszMaskedText )
	{
		CString	strMaskedText	= lpszMaskedText;
		int		nLen			= strMaskedText.GetLength();
		int		x				= 0;

		m_strWindowText = m_strLiteral;

		for ( int i = 0; ( i < m_strWindowText.GetLength() ) && ( x < nLen ); i++ )
		{
			if ( strMaskedText[x] == m_strWindowText[i] )
			{
				x ++;
			}
			else if ( m_strWindowText[i] == m_chPrompt )
			{
				m_strWindowText.SetAt( i,strMaskedText[x] );
				x ++;
			}
		}

		// set the window text for the control.
		m_bRedo = false;
		m_bModified = false;
		SetWindowText( m_strWindowText );

		m_strUndoBuffer = m_strWindowText;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function will set the mask for the edit control.
	// Parameters:
	//     lpszMask    - The format for the mask field. For example, if you wanted to set
	//  				 the mask for a phone number, and you only wanted digits to be entered,
	//  				 your mask might look like this; _T("(000) 000-0000").
	//     lpszLiteral - The literal format is entered here. Wherever you place an underscore
	//  				 ('_') is where the user will be allowed to enter data only. Using
	//  				 the phone number example; _T("(___) ___-____").
	//     lpszDefault - Text that is to be displayed when the control is initialized. For
	//  				 example; _T("(800) 555-1212"). If NULL, 'lpszLiteral' is used to initialize
	//  				 the edit text.
	// Remarks:
	//     The values that can be set are:
	//     <TABLE>
	//  		<b>Mask Character</b>  <b>Description</b>
	//  		---------------------  ------------------------
	//  		0   				   Numeric (0-9)
	//  		9   				   Numeric (0-9) or space (' ')
	//  		#   				   Numeric (0-9) or space (' ') or ('+') or ('-')
	//  		L   				   Alpha (a-Z)
	//  		?   				   Alpha (a-Z) or space (' ')
	//  		A   				   Alpha numeric (0-9 and a-Z)
	//  		a   				   Alpha numeric (0-9 and a-Z) or space (' ')
	//  		&   				   All print character only
	//  		H   				   Hex digit (0-9 and A-F)
	//  		X   				   Hex digit (0-9 and A-F) and space (' ')
	//  		>   				   Forces characters to upper case (A-Z)
	//  		<   				   Forces characters to lower case (a-z)
	//     </TABLE>
	//-----------------------------------------------------------------------
	virtual void SetEditMask( LPCTSTR lpszMask , LPCTSTR lpszLiteral , LPCTSTR lpszDefault = NULL )
	{
		ASSERT( lpszMask );
		ASSERT( lpszLiteral );

		// initialize the mask for the control.
		m_strMask = lpszMask;
		m_strLiteral = lpszLiteral;

		ASSERT( m_strMask.GetLength() == m_strLiteral.GetLength() );

		if ( lpszDefault == NULL )
		{
			m_strWindowText = lpszLiteral;
			m_strDefault = lpszLiteral;
		}
		else
		{
			SetMaskedText( lpszDefault );
			m_strDefault = m_strWindowText;
		}

		ASSERT( m_strWindowText.GetLength() == m_strLiteral.GetLength() );

		// set the window text for the control.
		m_bRedo = false;
		m_bModified = false;
		SetWindowText( m_strWindowText );

		m_strUndoBuffer = m_strWindowText;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     Converts character to Upper/Lower case.
	// Parameters:
	//     nChar - Char to be converted
	//     bUpperCase  - TRUE to convert to upper case
	// Returns:
	//     Converted character.
	//-----------------------------------------------------------------------
	TCHAR ConvertUnicodeAlpha( TCHAR nChar , BOOL bUpperCase )
	{
		CString	strTemp	( nChar );
		if ( bUpperCase )
		{
			strTemp.MakeUpper();
		}
		else
		{
			strTemp.MakeLower();
		}
		return strTemp[0];
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This method determines if nChar is alpha character
	// Parameters:
	//     nChar - Character need to test
	// Returns:
	//     true if nChar is alpha character.
	//-----------------------------------------------------------------------
	bool IsUnicodeAlpha( TCHAR nChar )
	{
		if ( ConvertUnicodeAlpha( nChar,TRUE ) != nChar )
		{
			return TRUE;
		}

		if ( ConvertUnicodeAlpha( nChar,FALSE ) != nChar )
		{
			return TRUE;
		}

		return FALSE;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is used internally to validate the character indicated
	//     by 'nChar'.
	// Parameters:
	//     nChar - Contains the character code value of the key.
	//     bBeep - true to enable beep. false to disable beep.
	// Returns:
	//     true if successful, otherwise returns false.
	//-----------------------------------------------------------------------
	virtual bool CheckChar( UINT & nChar , bool bBeep = true )
	{
		// do not use mask
		if ( !CanUseMask() )
		{
			return false;
		}

		// control character, OK
		if ( !_istprint( ( TCHAR ) nChar ) && !IsUnicodeAlpha( ( TCHAR ) nChar ) )
		{
			return true;
		}

		// advance to the first character input position.
		int	i;
		for ( i = m_nStartChar; i < m_strLiteral.GetLength(); ++i )
		{
			if ( m_strLiteral.GetAt( i ) == m_chPrompt )
			{
				SetSel( i,i );
				break;
			}
		}

		// make sure the string is not longer than the mask
		if ( i >= m_strMask.GetLength() )
		{
			if ( bBeep )
			{
				:: MessageBeep( ( UINT ) - 1 );
			}
			return false;
		}

		if ( !ProcessMask( nChar,i ) )
		{
			if ( bBeep )
			{
				:: MessageBeep( ( UINT ) - 1 );
			}
			return false;
		}

		return true;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     This member function is used internally to process the character passed
	//     in by 'nChar' whose index is specified by 'nEndPos'.
	// Parameters:
	//     nChar - Contains the character code value of the key.
	//     nEndPos - Index of character in display string.
	// Returns:
	//     true if successful, otherwise returns false.
	//-----------------------------------------------------------------------
	virtual bool ProcessMask( UINT & nChar , int nEndPos )
	{
		// check the key against the mask
		switch ( m_strMask.GetAt( nEndPos ) )
		{
		case '0':
			// digit only //completely changed this
			{
				if ( _istdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				break;
			}
		case '9':
			// digit or space
			{
				if ( _istdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' )
				{
					return true;
				}
				break;
			}
		case '#':
			// digit or space or '+' or '-'
			{
				if ( _istdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' || nChar == '-' || nChar == '+' )
				{
					return true;
				}
				break;
			}
		case 'd':
			// decimal
			{
				if ( _istdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' || nChar == '-' || nChar == '+' || nChar == '.' || nChar == ',' )
				{
					return true;
				}
				break;
			}
		case 'L':
			// alpha only
			{
				if ( _istalpha( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					return true;
				}
				break;
			}
		case '?':
			// alpha or space
			{
				if ( _istalpha( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' )
				{
					return true;
				}
				break;
			}
		case 'A':
			// alpha numeric only
			{
				if ( _istalnum( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					return true;
				}
				break;
			}
		case 'a':
			// alpha numeric or space
			{
				if ( _istalnum( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' )
				{
					return true;
				}
				break;
			}
		case '&':
			// all print character only
			{
				if ( _istprint( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					return true;
				}
				break;
			}
		case 'H':
			// hex digit
			{
				if ( _istxdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				break;
			}
		case 'X':
			// hex digit or space
			{
				if ( _istxdigit( ( TCHAR ) nChar ) )
				{
					return true;
				}
				if ( nChar == ' ' )
				{
					return true;
				}
				break;
			}
		case '>':
			{
				if ( _istalpha( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					nChar = ConvertUnicodeAlpha( ( TCHAR ) nChar,TRUE );
					return true;
				}
				break;
			}
		case '<':
			{
				if ( _istalpha( ( TCHAR ) nChar ) || IsUnicodeAlpha( ( TCHAR ) nChar ) )
				{
					nChar = ConvertUnicodeAlpha( ( TCHAR ) nChar,FALSE );
					return true;
				}
				break;
			}
		}

		return false;
	}

public:

	//-----------------------------------------------------------------------
	// Summary:
	//     Used by class CWinApp to translate window messages before they are dispatched to theTranslateMessage andDispatchMessage Windows functions.
	// Parameters:
	//     pMsg - Points to a MSG structure that contains the message to process.
	// Returns:
	//     Nonzero if the message was translated and should not be dispatched; 0 if the message was not translated and should be dispatched.
	//-----------------------------------------------------------------------
	virtual BOOL PreTranslateMessage( MSG * pMsg )
	{
		if ( !CanUseMask() )
		{
			return TBase::PreTranslateMessage( pMsg );
		}

		// intercept Ctrl+C (copy), Ctrl+V (paste), Ctrl+X (cut) and Ctrl+Z (undo)
		// before CEdit base class gets a hold of them.

		if ( pMsg->message == WM_KEYDOWN )
		{
			if ( ::GetKeyState( VK_SUBTRACT ) < 0 )
			{
				OnChar( '-',1,1 );
				return TRUE;
			}

			if ( ::GetKeyState( VK_ADD ) < 0 )
			{
				OnChar( '+',1,1 );
				return TRUE;
			}

			if ( ::GetKeyState( VK_CONTROL ) < 0 )
			{
				switch ( pMsg->wParam )
				{
				case 'X':
				case 'x':
					{
						MaskCut();
						return TRUE;
					}

				case 'C':
				case 'c':
					{
						MaskCopy();
						return TRUE;
					}

				case 'V':
				case 'v':
					{
						MaskPaste();
						return TRUE;
					}

				case 'Z':
				case 'z':
					{
						MaskUndo();
						return TRUE;
					}
				}
			}
			else
			{
				switch ( pMsg->wParam )
				{
				case '-':
					{
						OnChar( '-',1,1 );
						return TRUE;
					}

				case '+':
					{
						OnChar( '+',1,1 );
						return TRUE;
					}
				}
			}
		}

		return TBase::PreTranslateMessage( pMsg );
	}

	//{{AFX_CODEJOCK_PRIVATE
	virtual bool CorrectPosition(int& iPos, bool bForward=true, bool bBeep=true) // used internally
	{
		GetWindowText( m_strWindowText );
		int iLen = m_strWindowText.GetLength( );
		if ( iPos == iLen )
		{
			if ( bBeep )
			{
				::MessageBeep( ( UINT )-1 );
			}
			return false;
		}
		if (! PosInRange(iPos))
			return false;
		if ( m_strLiteral.GetAt( iPos ) != m_chPrompt )
		{
			int i;
			if ( bForward )
			{
				for ( i = iPos; i < iLen; ++i )
				{
					if ( m_strLiteral.GetAt( i ) == m_chPrompt )
					{
						iPos = i;
						break;
					}
				}
			}
			else
			{
				for ( i = iPos; i >= 0; --i )
				{
					if ( m_strLiteral.GetAt( i ) == m_chPrompt )
					{
						iPos = i;
						break;
					}
				}
				if ( i == -1 )
				{
					iPos++;
					if ( bBeep )
					{
						::MessageBeep( ( UINT )-1 );
					}
					return false;
				}
			}
			if ( i == iLen )
			{
				if ( bBeep )
				{
					::MessageBeep( ( UINT )-1 );
				}
				return false;
			}
		}
		return true;
	}
	//}}AFX_CODEJOCK_PRIVATE

	//-----------------------------------------------------------------------
	// Summary:
	//     Deletes character in specified position
	// Parameters:
	//     iPos - Position for character to be deleted.
	//-----------------------------------------------------------------------
	virtual void DeleteCharAt( int iPos )
	{
		if ( !PosInRange( iPos ) )
		{
			return;
		}

		CString	strBuffer	= GetMaskedText( iPos + 1 );
		strBuffer += m_chPrompt;

		int	x		= 0;
		int	iLen	= strBuffer.GetLength();
		int	i;
		for ( i = iPos; i < m_strLiteral.GetLength(); ++i )
		{
			if ( ( m_strLiteral.GetAt( i ) == m_chPrompt ) )
			{
				m_strWindowText.SetAt( i,strBuffer.GetAt( x ) );
				++x;

				if ( x == iLen )
					break;
			}
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     Inserts character to specified position.
	// Parameters:
	//     iPos - Position to insert
	//     nChar - Character to be inserted
	//-----------------------------------------------------------------------
	virtual void InsertCharAt( int iPos , TCHAR nChar )
	{
		if ( !PosInRange( iPos ) )
		{
			return;
		}

		UINT	uChar	= nChar;
		if ( !CheckChar( uChar,false ) )
		{
			return;
		}

		CString	strBuffer	= GetMaskedText( iPos );

		CString	strTemp		( nChar );
		int		i, x = 0, iLen = strBuffer.GetLength();
		for ( i = 1; i < strBuffer.GetLength(); ++i )
		{
			strTemp += strBuffer.GetAt( i - 1 );
		}
		strBuffer = strTemp;

		for ( i = iPos; i < m_strWindowText.GetLength(); ++i )
		{
			if ( m_strLiteral.GetAt( i ) == m_chPrompt )
			{
				m_strWindowText.SetAt( i,strBuffer[x] );
				++x;

				if ( x == iLen )
					break;
			}
		}
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     Copies text to system clipboard
	// Parameters:
	//     lpszText - Text to be copied
	// Returns:
	//     TRUE if successful; otherwise returns FALSE
	//-----------------------------------------------------------------------
	virtual bool CopyToClipboard( LPCTSTR lpszText )
	{
		if ( !OpenClipboard() )
		{
			return false;
		}

		::EmptyClipboard();

		int		iLen		= ( int ) _tcslen( lpszText ) + 1;

		HGLOBAL	hglbCopy	= ::GlobalAlloc( GMEM_MOVEABLE,iLen );

		if ( hglbCopy == NULL )
		{
			::CloseClipboard();
			return false;
		}

		LPTSTR	lptstrCopy	= ( TCHAR * ) ::GlobalLock( hglbCopy );
		memcpy( lptstrCopy,lpszText,iLen );
		::GlobalUnlock( hglbCopy );

		::SetClipboardData( CF_TEXT,hglbCopy );

		if ( !::CloseClipboard() )
		{
			return false;
		}

		return true;
	}

	//-----------------------------------------------------------------------
	// Summary:
	//     Retrieves masked text of the control
	// Parameters:
	//     iPos - Start position
	// Returns:
	//     Masked text of the control.
	//-----------------------------------------------------------------------
	virtual CString GetMaskedText( int iPos = 0 )
	{
		int	iWndLen	= m_strWindowText.GetLength();

		ASSERT( iWndLen == m_strLiteral.GetLength() ); // must be equal in length

		CString	strBuffer;
		int		i;
		for ( i = iPos; i < iWndLen; ++i )
		{
			if ( m_strLiteral.GetAt( i ) == m_chPrompt )
			{
				strBuffer += m_strWindowText.GetAt( i );
			}
		}

		return strBuffer;
	}


	//-----------------------------------------------------------------------
	// Summary:
	//     Call this member function to determine if a selection has been made
	// Returns:
	//     TRUE if successful; otherwise returns FALSE
	//-----------------------------------------------------------------------
	virtual BOOL SelectionMade()
	{
		GetSel( m_nStartChar,m_nEndChar ); return ( m_nStartChar != m_nEndChar );
	}


protected:


	//{{AFX_CODEJOCK_PRIVATE
		afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
		{
			if (!CanUseMask())
			{
				TBase::OnKeyDown( nChar, nRepCnt, nFlags ); // default processing.
				return;
			}

			GetWindowText( m_strWindowText ); // refresh
			GetSel( m_nStartChar, m_nEndChar );

			if ( m_strMask.IsEmpty( ) )
			{
				TBase::OnKeyDown( nChar, nRepCnt, nFlags ); // default processing.
				return;
			}

			bool bShift = (::GetKeyState(VK_SHIFT) < 0);

			switch ( nChar )
			{
			case VK_UP:
			case VK_LEFT:
				{
					TBase::OnKeyDown( nChar, nRepCnt, nFlags );
					GetSel( m_nStartChar, m_nEndChar );

					int iStartChar = m_nStartChar;
					CorrectPosition( iStartChar, false, false );

					if ( m_nStartChar < iStartChar )
					{
						m_nStartChar = iStartChar;

						if ( !bShift )
							m_nEndChar = iStartChar;

						SetSel( m_nStartChar, m_nEndChar );
					}
				}
				return;

			case VK_DOWN:
			case VK_RIGHT:
				{
					TBase::OnKeyDown( nChar, nRepCnt, nFlags );
					GetSel( m_nStartChar, m_nEndChar );

					int iEndChar = m_nEndChar;
					CorrectPosition( iEndChar, true, false );

					if ( m_nEndChar > iEndChar )
					{
						m_nEndChar = iEndChar;

						if ( !bShift )
							m_nStartChar = iEndChar;

						SetSel( m_nStartChar, m_nEndChar );
					}
				}
				return;

			case VK_HOME:
				{
					TBase::OnKeyDown( nChar, nRepCnt, nFlags );
					GetSel( m_nStartChar, m_nEndChar );

					int iStartChar = m_nStartChar;
					CorrectPosition( iStartChar, true, false );

					if ( m_nStartChar < iStartChar )
					{
						m_nStartChar = iStartChar;

						if (!bShift)
						{
							m_nEndChar = m_nStartChar;
						}
						SetSel( m_nStartChar, m_nEndChar );
					}
				}
				return;

			case VK_END:
				{
					TBase::OnKeyDown( nChar, nRepCnt, nFlags );
					GetSel( m_nStartChar, m_nEndChar );

					int iEndChar = m_nEndChar;
					CorrectPosition( iEndChar, true, false );

					if ( m_nEndChar > iEndChar )
					{
						m_nEndChar = iEndChar;

						if ( !bShift )
							m_nStartChar = iEndChar;

						SetSel( m_nStartChar, m_nEndChar );
					}
				}
				return;

			case VK_INSERT:
				{
					if ( bShift )
					{
						MaskPaste( );
					}
					else
					{
						m_bOverType = !m_bOverType; // set the type-over flag
					}
				}
				return;

			case VK_DELETE:
				{
					if ( m_nStartChar == m_nEndChar )
					{
						if ( CorrectPosition( m_nStartChar ) )
						{
							DeleteCharAt( m_nStartChar );

							m_bRedo = false;
							m_bModified = true;
							SetWindowText( m_strWindowText );

							m_nEndChar = m_nStartChar;
							SetSel( m_nStartChar, m_nEndChar );
						}
					}
					else
					{
						MaskClear( );
					}
				}
				return;

			case VK_SPACE:
				{
					GetWindowText( m_strWindowText ); // refresh

					if ( CorrectPosition( m_nStartChar ) )
					{
						if ( m_nStartChar < m_strLiteral.GetLength( ) )
						{
							if ( ProcessMask( nChar, m_nStartChar ) )
							{
								if ( CanOverType( ) )
								{
									m_strWindowText.SetAt( m_nStartChar, ' ' );
								}
								else
								{
									InsertCharAt( m_nStartChar, ( TCHAR )nChar );
								}
							}
							else
							{
								m_strWindowText.SetAt( m_nStartChar, m_chPrompt );
							}

							m_bRedo = false;
							m_bModified = true;
							SetWindowText( m_strWindowText );

							m_nStartChar++;
							m_nEndChar = m_nStartChar;
							SetSel( m_nStartChar, m_nEndChar );
						}
						else
						{
							::MessageBeep( ( UINT )-1 );
						}
					}
				}
				return;

			case VK_BACK:
				{
					GetWindowText( m_strWindowText ); // refresh

					if ( ( m_nStartChar > 0 ) &&
						( m_nStartChar <= m_strLiteral.GetLength( ) ) )
					{
						m_nStartChar--;

						if ( CorrectPosition( m_nStartChar, false ) )
						{
							TCHAR ch = m_chPrompt;

							// get the masked literal representation.
							if ( !m_strDefault.IsEmpty( ) )
							{
								ch = m_strDefault.GetAt( m_nStartChar );
							}

							m_strWindowText.SetAt( m_nStartChar, ch );

							m_bRedo = false;
							m_bModified = true;
							SetWindowText( m_strWindowText );

							m_nEndChar = m_nStartChar;
							SetSel( m_nStartChar, m_nEndChar );
						}
					}
					else
					{
						::MessageBeep( ( UINT )-1 );
					}
				}
				return;
			}

			TBase::OnKeyDown( nChar, nRepCnt, nFlags );

		}
		afx_msg void OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
		{
			if (!CanUseMask())
			{
				TBase::OnChar(nChar, nRepCnt, nFlags);
				return;
			}

			switch ( nChar )
			{
			case VK_UP:
			case VK_LEFT:
			case VK_DOWN:
			case VK_RIGHT:
			case VK_HOME:
			case VK_END:
			case VK_DELETE:
			case VK_SPACE:
			case VK_BACK:
				return; // handled in WM_KEYDOWN
			}

			if (!CheckChar(nChar))
			{
				return;
			}

			if ( CanUseMask( ) )
			{
				if ( _istprint( ( TCHAR )nChar ) || IsUnicodeAlpha(( TCHAR )nChar))
				{
					int iLen = m_strLiteral.GetLength( );
					if ( m_nStartChar >= iLen )
					{
						::MessageBeep( ( UINT )-1 );
						return;
					}

					if ( m_nEndChar >= iLen )
						m_nEndChar = iLen-1;

					if ( m_nStartChar != m_nEndChar )
					{
						int i;
						for ( i = m_nStartChar; i < m_nEndChar; ++i )
						{
							if ( m_strLiteral.GetAt( i ) == m_chPrompt )
							{
								DeleteCharAt( m_nStartChar );
							}
						}
					}

					SetWindowText( m_strWindowText );

					if ( CorrectPosition( m_nStartChar ) )
					{
						if ( CanOverType( ) )
						{
							if ( m_nStartChar != m_nEndChar )
							{
								InsertCharAt( m_nStartChar, ( TCHAR )nChar );
							}
							else
							{
								m_strWindowText.SetAt( m_nStartChar, ( TCHAR )nChar );
							}
						}
						else
						{
							InsertCharAt( m_nStartChar, ( TCHAR )nChar );
						}
					}

					m_bRedo = false;
					m_bModified = true;
					SetWindowText( m_strWindowText );

					if (m_nStartChar < iLen )
						m_nStartChar++;

					if ( m_nStartChar < iLen )
						CorrectPosition( m_nStartChar );

					m_nEndChar = m_nStartChar;
					SetSel( m_nStartChar, m_nEndChar );

					return;
				}
			}

			if (nChar != 127)
				TBase::OnChar(nChar, nRepCnt, nFlags);

			// update the window text string.
			GetWindowText( m_strWindowText );

		}
		afx_msg void OnLButtonDown(UINT nFlags, CPoint point)
		{
			TBase::OnLButtonDown(nFlags, point);

			if (!CanUseMask())
			{
				return;
			}

			GetSel( m_nStartChar, m_nEndChar );
			CorrectPosition( m_nStartChar, true, false );

			if ( ::GetKeyState( VK_SHIFT ) < 0 )
				m_nEndChar = m_nStartChar;

			SetSel( m_nStartChar, m_nEndChar );

		}
		afx_msg void OnSetFocus(CWnd* pOldWnd)
		{
			TBase::OnSetFocus(pOldWnd);

			if (!CanUseMask())
			{
				return;
			}

			GetSel( m_nStartChar, m_nEndChar );
			CorrectPosition( m_nStartChar, true, false );

			m_nEndChar = m_nStartChar;
			SetSel( m_nStartChar, m_nEndChar );

		}
		afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point)
		{
			TBase::OnLButtonDblClk(nFlags, point);

			if (!CanUseMask())
			{
				return;
			}

			GetSel( m_nStartChar, m_nEndChar );
			CorrectPosition( m_nStartChar, true, false );
			CorrectPosition( m_nEndChar, true, false );

			SetSel( m_nStartChar, m_nEndChar );

		}
		afx_msg void OnUpdateEditUndo(CCmdUI* pCmdUI)
		{
			if (!CanUseMask())
			{
				pCmdUI->Enable( CanUndo( ) );
			}
			else
			{
				pCmdUI->Enable( m_bModified );
			}

		}
	//}}AFX_CODEJOCK_PRIVATE

	//-----------------------------------------------------------------------
	// Summary:
	//     The framework calls this member function when the user selects an item from a menu
	// Parameters:
	//     wParam - The low-order word of wParam identifies the command ID of the menu item, control, or accelerator. The high-order word of wParam specifies the notification message if the message is from a control. If the message is from an accelerator, the high-order word is 1. If the message is from a menu, the high-order word is 0
	//     lParam - Identifies the control that sends the message if the message is from a control. Otherwise, lParam is 0.
	// Returns:
	//     An application returns nonzero if it processes this message; otherwise 0.
	//-----------------------------------------------------------------------
	virtual BOOL OnCommand( WPARAM wParam , LPARAM lParam )
	{
		switch ( LOWORD( wParam ) )
		{
		case ID_EDIT_CUT:
			if ( !CanUseMask() )
				CEdit::Cut();
			else
				MaskCut();
			return TRUE;

		case ID_EDIT_COPY:
			if ( !CanUseMask() )
				CEdit::Copy();
			else
				MaskCopy();
			return TRUE;

		case ID_EDIT_PASTE:
			if ( !CanUseMask() )
				CEdit::Paste();
			else
				MaskPaste();
			return TRUE;

		case ID_EDIT_CLEAR:
			if ( !CanUseMask() )
				CEdit::Clear();
			else
				MaskClear();
			return TRUE;

		case ID_EDIT_UNDO:
			if ( !CanUseMask() )
				CEdit::Undo();
			else
				MaskUndo();
			return TRUE;

		case ID_EDIT_SELECT_ALL:
			MaskSelectAll();
			return TRUE;
		}
		return TBase::OnCommand( wParam,lParam );
	}

protected:

	int		m_nStartChar;   	// Current position of the first character in the current selection.
	int		m_nEndChar; 		// Current position of the first non-selected character past the end of the current selection.
	bool	m_bUseMask; 		// true to use the edit mask.
	bool	m_bOverType;		// true to over type the text, set with VK_INSERT key press.
	bool	m_bRedo;			// true to redo, or false to undo.
	bool	m_bModified;		// true if mask edit has been modified.
	TCHAR	m_chPrompt; 		// Prompt character used to identify the text entry.
	CString	m_strMask;  		// Buffer that holds the actual edit mask value.
	CString	m_strDefault;   	// Contains the edit controls default display text.
	CString	m_strUndoBuffer;	// Holds the contents of the undo buffer.
	CString	m_strRedoBuffer;	// Holds the contents of the redo buffer.
	CString	m_strWindowText;	// Buffer that holds the actual edit text.
	CString	m_strLiteral;   	// Literal format that restricts where the user can enter text.
};

//{{AFX_CODEJOCK_PRIVATE
#define ON_MASKEDIT_REFLECT\
	ON_MESSAGE_VOID(WM_CUT, MaskCut)\
	ON_MESSAGE_VOID(WM_PASTE, MaskPaste)\
	ON_MESSAGE_VOID(WM_CLEAR, MaskClear)\
	ON_MESSAGE_VOID(WM_UNDO, MaskUndo)\
	ON_MESSAGE_VOID(WM_COPY, MaskCopy)\
	ON_WM_KEYDOWN()\
	ON_WM_CHAR()\
	ON_WM_LBUTTONDOWN()\
	ON_WM_SETFOCUS()\
	ON_WM_LBUTTONDBLCLK
//}}AFX_CODEJOCK_PRIVATE
//////////////////////////////////////////////////////////////////////


#endif // #if !defined(__XTMASKEDITEX_H__)