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harbour-core/harbour/source/rtl/mssgline.prg

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/*
* $Id$
*/
/*
* Harbour Project source code:
* Message Line Class
*
* Copyright 2002 Larry Sevilla <lsevilla@nddc.edu.ph>
* www - http://www.harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbsetup.ch"
#include "hbclass.ch"
#ifdef HB_COMPAT_C53
CLASS MssgLine
DATA Flag
DATA Row
DATA Left
DATA Right
DATA Color
DATA aMsg // for backwards compatibility
/*
// Graphics support - not yet implemented
DATA Back1
DATA Back2
DATA Fore
DATA FontCol
DATA FontRow
*/
DATA ScreenSaved PROTECTED
METHOD New( nRow, nLeft, nRight, cColor )
METHOD SaveScreen()
METHOD Show( cMsg )
METHOD RestScreen()
MESSAGE Erase() METHOD RestScreen()
ENDCLASS
METHOD New( nRow, nLeft, nRight, cColor ) CLASS MssgLine
::Row := nRow
::Left := nLeft
::Right := nRight
::Color := cColor
::Flag := ( VALTYPE(nRow) + VALTYPE(nLeft) + VALTYPE(nRight) == "NNN" )
IF !( VALTYPE(cColor) == "C" )
::Color := GetClrPair( SetColor(), 1 )
ENDIF
::aMsg := { ::Flag, nRow, nLeft, nRight, ::Color ,,,,, }
// GUI not yet supported
return Self
METHOD SaveScreen() CLASS MssgLine
::ScreenSaved := saveScreen( ::row, ::left, ::row, ::right )
return Self
METHOD RestScreen() CLASS MssgLine
restScreen( ::row, ::left, ::row, ::right, ::ScreenSaved )
return Self
/***
*
* ShowMsg() --> NIL
*
***/
METHOD Show( cMsg ) CLASS MssgLine
local nRow, nCol
IF ::Right == NIL
RETURN Self
ENDIF
nRow := row()
nCol := col()
@ ::row, ::left SAY PadC( cMsg, ::right - ::left + 1 ) COLOR ::Color
setPos( nRow, nCol )
return Self
CLASS GetMssgLine FROM MssgLine
METHOD Show( oGet )
ENDCLASS
/***
*
* ShowGetMsg() --> NIL
*
***/
METHOD Show( oGet ) CLASS GetMssgLine
local cMsg := IIF( VALTYPE( oGet:Control ) == "O", ;
oGet:Control:Message, oGet:Message )
IF !EMPTY( cMsg )
::super:Show( cMsg )
ENDIF
return Self
CLASS MenuMssgLine FROM MssgLine
METHOD Show( oMenu, lMode )
ENDCLASS
/***
*
* ShowMsg( <aMsg>, <lMode> ) --> .T.
*
* Erase and Show Messages.
* Erase Message then ShowMsg() if lMode is .T.
* Only erases Menu Message if lMode is .F.
* SaveScreen()/RestScreen() is used for the
* Message area in both text or graphics mode.
*
***/
METHOD Show( oMenu, lMode ) CLASS MenuMssgLine
LOCAL nCurrent, cMsg := NIL
LOCAL cSaveColor := SetColor()
LOCAL mlOldState := MSetCursor( .F. )
IF ( ValType( oMenu:lOldMsgFlag ) == "L" .AND. oMenu:lOldMsgFlag )
::RestScreen()
ENDIF
IF lMode
IF ( ::Flag .AND. ;
( nCurrent := oMenu:oMenu:Current ) != 0 )
IF !EMPTY( cMsg := oMenu:oMenu:GetItem( nCurrent ):Message )
::super:show( cMsg )
ENDIF
ENDIF
oMenu:cOldMessage := cMsg
oMenu:lOldMsgFlag := ::Flag
ENDIF
MSetCursor( mlOldState )
RETURN ( .T. )
#endif