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108 lines
3.7 KiB
Plaintext
108 lines
3.7 KiB
Plaintext
/*
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* Harbour Project source code:
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* CT3 video functions (screen-like functions):
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*
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* ScreenMark()
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* Copyright 2004 Pavel Tsarenko <tpe2.mail.ru>
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* www - http://harbour-project.org
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*
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* Copyright 2007 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
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* modified for better CT3 compatibility and GT drivers which do not use
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* VGA compatible video buffer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING.txt. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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FUNCTION ScreenMark( cSearch, xAttr, lUpperLower, lAll, cForward, cTrailing )
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LOCAL lFound := .F.
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LOCAL nCount := 1
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LOCAL nAt, nLen, nLast, nRow, nCol, nEnd, nCols
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LOCAL cScreen
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hb_default( @lUpperLower, .F. )
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hb_default( @lAll, .F. )
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IF ! HB_ISSTRING( cForward ) .OR. cForward == ""
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cForward := NIL
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ENDIF
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IF ! HB_ISSTRING( cTrailing ) .OR. cTrailing == ""
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cTrailing := NIL
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ENDIF
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nCols := MaxCol()
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cScreen := ScreenText( 0, 0, MaxRow(), nCols++ )
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nLen := Len( cSearch )
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nLast := Len( cScreen ) - nLen + 1
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IF ! lUpperLower
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cSearch := Upper( cSearch )
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cScreen := Upper( cScreen )
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ENDIF
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DO WHILE ( nAt := AtNum( cSearch, cScreen, nCount ) ) != 0
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IF ( nAt == 1 .OR. cForward == NIL .OR. ;
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SubStr( cScreen, nAt, 1 ) $ cForward ) .AND. ;
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( nAt == nLast .OR. cTrailing == NIL .OR. ;
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SubStr( cScreen, nAt + nLen ) $ cTrailing )
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lFound := .T.
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--nAt
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nRow := Int( nAt / nCols )
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nCol := Int( nAt % nCols )
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nEnd := nCol + Len( cSearch ) - 1
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ColorWin( nRow, nCol, nRow, nEnd, xAttr )
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DO WHILE nEnd >= nCols
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nEnd -= nCols
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nCol := 0
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++nRow
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ColorWin( nRow, nCol, nRow, nEnd, xAttr )
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ENDDO
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IF ! lAll
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EXIT
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ENDIF
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ENDIF
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nCount++
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ENDDO
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RETURN lFound
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