ca6779b236
* harbour/source/vm/arrays.c
! protection against possible GPF in hb_rAscan() if user block
reduces the array size
* harbour/source/debug/tbrwtext.prg
! fixed source color text to be more Clipper compatible.
Borrowed from xHarbour by Phil Krylov
* harbour/source/debug/debugger.prg
! added missing :forceStable() to refresh the screen after break point
setting
357 lines
8.6 KiB
Plaintext
357 lines
8.6 KiB
Plaintext
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Text file browser class
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*
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* Copyright 2008 Lorenzo Fiorini <lorenzo.fiorini@gmail.com>
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* www - http://www.harbour-project.org
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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. 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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#pragma DEBUGINFO=OFF
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#define HB_CLS_NOTOBJECT /* do not inherit from HBObject calss */
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#include "hbclass.ch"
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CREATE CLASS HBBrwText
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VAR cFileName
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VAR aRows
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VAR nRows
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VAR nActiveLine
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VAR aBreakPoints INIT {}
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VAR lLineNumbers
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VAR nRow
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VAR nFirstCol
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VAR nCol
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VAR oBrw
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VAR cCurLine
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VAR nLineOffset INIT 1
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VAR nMaxLineLen
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VAR nTabWidth INIT 4
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VAR nTop
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VAR nLeft
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VAR nBottom
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VAR nRight
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VAR nWidth
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VAR nHeight
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METHOD New( nTop, nLeft, nBottom, nRight, cFileName, cColors, lLineNumbers )
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METHOD RefreshAll() INLINE ::oBrw:ForceStable():RefreshAll(), Self
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METHOD ForceStable() INLINE ::oBrw:ForceStable(), Self
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METHOD RefreshCurrent() INLINE ::oBrw:RefreshCurrent(), Self
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METHOD GotoLine( n )
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METHOD SetActiveLine( n )
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METHOD GetLine( n )
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METHOD ToggleBreakPoint( nRow, lSet )
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METHOD Search( cString, lCaseSensitive, nMode )
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METHOD GoFirst()
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METHOD GoLast()
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METHOD Skip( n )
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METHOD GoNext()
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METHOD GoPrev()
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METHOD Resize( nTop, nLeft, nBottom, nRight )
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METHOD GetLineColor()
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METHOD Up() INLINE ::oBrw:Up():ForceStable(), Self
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METHOD Down() INLINE ::oBrw:Down():ForceStable(), Self
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METHOD PageUp() INLINE ::oBrw:PageUp():ForceStable(), Self
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METHOD PageDown() INLINE ::oBrw:PageDown():ForceStable(), Self
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METHOD GoTop() INLINE ::oBrw:GoTop():ForceStable(), Self
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METHOD GoBottom() INLINE ::oBrw:GoBottom():ForceStable(), Self
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METHOD Right() INLINE IIF( ::nLineOffset < ::nMaxLineLen, ( ::nLineOffset++, ::oBrw:RefreshAll():ForceStable() ), ), Self
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METHOD Left() INLINE IIF( ::nLineOffset > 1, ( ::nLineOffset--, ::oBrw:RefreshAll():ForceStable() ), ), Self
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METHOD RowPos() INLINE ::nRow
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METHOD LoadFile( cFileName )
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VAR colorSpec IS colorSpec IN oBrw
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ENDCLASS
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METHOD New( nTop, nLeft, nBottom, nRight, cFileName, cColors, lLineNumbers ) CLASS HBBrwText
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LOCAL oCol
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::nTop := nTop
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::nLeft := nLeft
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::nBottom := nBottom
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::nRight := nRight
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::nWidth := nRight - nLeft + 1
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::nHeight := nBottom - nTop
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::lLineNumbers := lLineNumbers
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::oBrw := HBDbBrowser():New( ::nTop, ::nLeft, ::nBottom, ::nRight )
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::oBrw:colorSpec := cColors
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oCol := HBDbColumnNew( "", {|| ::GetLine() } )
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oCol:colorBlock := {|| ::GetLineColor() }
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::oBrw:AddColumn( oCol )
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::oBrw:goTopBlock := {|| ::nRow := 1 }
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::oBrw:goBottomBlock := {|| ::nRow := ::nRows }
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::oBrw:skipBlock := {| n | ::Skip( n ) }
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IF !Empty( cFileName )
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::LoadFile( cFileName )
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ENDIF
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RETURN Self
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METHOD GotoLine( n ) CLASS HBBrwText
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::oBrw:MoveCursor( n - ::nRow )
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::RefreshAll()
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RETURN Self
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METHOD SetActiveLine( n ) CLASS HBBrwText
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::nActiveLine := n
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::RefreshAll()
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RETURN Self
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METHOD GetLine() CLASS HBBrwText
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RETURN PadR( hb_NToS( ::nRow ) + ": " + SubStr( ;
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MemoLine( ::aRows[ ::nRow ], ::nWidth + ::nLineOffset, 1, ::nTabWidth, .f. ),;
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::nLineOffset ), ::nWidth )
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METHOD ToggleBreakPoint( nRow, lSet) CLASS HBBrwText
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LOCAL nAt := AScan( ::aBreakPoints, nRow )
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IF lSet
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// add it only if not present
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IF nAt == 0
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AAdd( ::aBreakPoints, nRow)
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ENDIF
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ELSE
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IF nAt != 0
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ADel( ::aBreakPoints, nAt )
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ASize( ::aBreakPoints, Len( ::aBreakPoints ) - 1 )
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ENDIF
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ENDIF
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RETURN Self
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METHOD LoadFile( cFileName ) CLASS HBBrwText
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LOCAL nMaxLineLen := 0
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LOCAL cLine
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::cFileName := cFileName
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::aRows := Text2Array( MemoRead( cFileName ) )
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::nRows := Len( ::aRows )
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FOR EACH cLine in ::aRows
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MemoLine( cLine, ::nWidth, 1, ::nTabWidth, .f. )
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nMaxLineLen := Max( nMaxLineLen, ;
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Len( RTrim( MemoLine( cLine, Len( cLine ) + 256, 1, ::nTabWidth, .f. ) ) ) )
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NEXT
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::nMaxLineLen := nMaxLineLen
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::nLineOffset := 1
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RETURN NIL
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METHOD Resize( nTop, nLeft, nBottom, nRight ) CLASS HBBrwText
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LOCAL lResize := .F.
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IF nTop != NIL .AND. nTop != ::nTop
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::nTop := nTop
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lResize := .T.
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ENDIF
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IF nLeft != NIL .AND. nLeft != ::nLeft
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::nLeft := nLeft
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lResize := .T.
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ENDIF
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IF nBottom != NIL .AND. nBottom != ::nBottom
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::nBottom := nBottom
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lResize := .T.
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ENDIF
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IF nRight != NIL .AND. nRight != ::nRight
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::nRight := nRight
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lResize := .T.
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ENDIF
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IF lResize
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::oBrw:Resize( nTop, nLeft, nBottom, nRight )
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::nWidth := nRight - nLeft + 1
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ENDIF
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RETURN Self
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METHOD GetLineColor() CLASS HBBrwText
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LOCAL aColor
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LOCAL lBreak
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lBreak := AScan( ::aBreakPoints, ::nRow ) > 0
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IF lBreak .AND. ::nRow == ::nActiveLine
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aColor := { 4, 4 }
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ELSEIF lBreak
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aColor := { 3, 3 }
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ELSEIF ::nRow == ::nActiveLine
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aColor := { 2, 2 }
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ELSE
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aColor := { 1, 1 }
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ENDIF
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RETURN aColor
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METHOD Search( cString, lCaseSensitive, nMode ) CLASS HBBrwText
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LOCAL bMove
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LOCAL lFound := .F.
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IF !lCaseSensitive
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cString := Upper( cString )
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ENDIF
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DO CASE
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CASE nMode == 0 // From Top
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::GoTop()
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bMove := {|| ::Skip( 1 ) }
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CASE nMode == 1 // Forward
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bMove := {|| ::Skip( 1 ) }
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CASE nMode == 2 // Backward
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bMove := {|| ::Skip( -1 ) }
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ENDCASE
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DO WHILE Eval( bMove ) != 0
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IF cString $ IIF( lCaseSensitive, ::cCurLine, Upper( ::cCurLine ) )
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lFound := .T.
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::RefreshAll()
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EXIT
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ENDIF
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ENDDO
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RETURN lFound
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METHOD GoFirst() CLASS HBBrwText
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::nRow := 1
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RETURN .T.
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METHOD GoLast() CLASS HBBrwText
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::nRow := ::nRows
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RETURN .T.
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METHOD Skip( n ) CLASS HBBrwText
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LOCAL nSkipped := 0
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IF n > 0
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DO WHILE nSkipped != n .AND. ::GoNext()
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nSkipped++
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ENDDO
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ELSE
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DO WHILE nSkipped != n .AND. ::GoPrev()
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nSkipped--
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ENDDO
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ENDIF
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RETURN nSkipped
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METHOD GoPrev() CLASS HBBrwText
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LOCAL lMoved := .F.
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IF ::nRow > 1
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::nRow--
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lMoved := .T.
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ENDIF
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RETURN lMoved
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METHOD GoNext() CLASS HBBrwText
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LOCAL lMoved := .F.
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IF ::nRow < ::nRows
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::nRow++
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lMoved := .T.
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ENDIF
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RETURN lMoved
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STATIC FUNCTION WhichEOL( cString )
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LOCAL nCRPos := At( Chr( 13 ), cString )
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LOCAL nLFPos := At( Chr( 10 ), cString )
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IF nCRPos > 0 .AND. nLFPos == 0
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RETURN Chr( 13 )
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ELSEIF nCRPos == 0 .AND. nLFPos > 0
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RETURN Chr( 10 )
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ELSEIF nCRPos > 0 .AND. nLFPos == nCRPos + 1
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RETURN Chr( 13 ) + Chr( 10 )
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ENDIF
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RETURN HB_OSNewLine()
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STATIC FUNCTION Text2Array( cString )
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RETURN hb_aTokens( cString, WhichEOL( cString ) )
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