280 lines
7.0 KiB
Plaintext
280 lines
7.0 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 2001 Maurilio Longo <maurilio.longo@libero.it>
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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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#include "hbclass.ch"
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#include "common.ch"
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#include "fileio.ch"
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#include "inkey.ch"
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// Color definitions and positions inside ::cColorSpec
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#define CLR_CODE 0 // color of code
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#define CLR_CURSOR 1 // color of highlighted line (the line to be executed)
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#define CLR_BKPT 2 // color of breakpoint line
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#define CLR_HIBKPT 3 // color of highlighted breakpoint line
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CLASS TBrwText FROM HBEditor
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DATA cFileName // the name of the browsed file
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DATA nActiveLine // Active line inside Code Window (the line to be executed)
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DATA aBreakPoints // Array with line numbers of active Break Points
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DATA lLineNumbers // If .T. source code lines are preceded by their number
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ACCESS colorSpec INLINE ::cColorSpec
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ASSIGN colorSpec(cClr) INLINE ::cColorSpec:=cClr
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METHOD New(nTop, nLeft, nBottom, nRight, cFileName, cColor)
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METHOD GoTop() // Methods available on a standard TBrowse, needed to handle a HBEditor like a TBrowse
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METHOD GoBottom()
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METHOD Up()
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METHOD Down()
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METHOD Left()
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METHOD Right()
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METHOD PageUp()
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METHOD PageDown()
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METHOD RefreshAll()
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METHOD RefreshCurrent()
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METHOD ForceStable() INLINE NIL
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METHOD GotoLine(n) // Moves active line cursor
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METHOD SetActiveLine( n ) // Sets the line to be executed
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METHOD GetLine(nRow) // Redefine HBEditor method to add line number
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METHOD LineColor(nRow) // Redefine HBEditor method to handle line coloring
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METHOD ToggleBreakPoint(nRow, lSet) // if lSet is .T. there is a BreakPoint active at nRow,
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// if lSet is .F. BreakPoint at nRow has to be removed
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METHOD Search( cString, lCaseSensitive, nMode ) // 0 from Begining to end, 1 Forward, 2 Backwards
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METHOD LoadFile(cFileName)
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ENDCLASS
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METHOD New(nTop, nLeft, nBottom, nRight, cFileName, cColor, lLineNumbers) CLASS TBrwText
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DEFAULT cColor TO SetColor()
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DEFAULT lLineNumbers TO .T.
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::cFileName := cFileName
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::nActiveLine := 1
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::aBreakPoints := {}
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::lLineNumbers := lLineNumbers
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Super:New("", nTop, nLeft, nBottom, nRight, .T.)
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Super:SetColor(cColor)
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Super:LoadFile(cFileName)
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return Self
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METHOD LoadFile(cFileName) CLASS TBrwText
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Super:LoadFile(cFileName)
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return Self
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METHOD GoTop() CLASS TBrwText
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::MoveCursor(K_CTRL_PGUP)
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return Self
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METHOD GoBottom() CLASS TBrwText
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::MoveCursor(K_CTRL_PGDN)
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return Self
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METHOD Up() CLASS TBrwText
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::MoveCursor(K_UP)
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return Self
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METHOD Left() CLASS TBrwText
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::MoveCursor(K_LEFT)
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return Self
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METHOD Right() CLASS TBrwText
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::MoveCursor(K_RIGHT)
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return Self
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METHOD Down() CLASS TBrwText
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::MoveCursor(K_DOWN)
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return Self
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METHOD PageUp() CLASS TBrwText
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::MoveCursor(K_PGUP)
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return Self
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METHOD PageDown() CLASS TBrwText
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::MoveCursor(K_PGDN)
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return Self
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METHOD RefreshAll() CLASS TBrwText
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::RefreshWindow()
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return Self
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METHOD RefreshCurrent() CLASS TBrwText
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::RefreshLine()
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return Self
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METHOD SetActiveLine( n ) CLASS TBrwText
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::nActiveLine := n
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::RefreshWindow()
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return Self
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METHOD GotoLine(n) CLASS TBrwText
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Super:GotoLine(n)
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return Self
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METHOD GetLine(nRow) CLASS TBrwText
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return iif(::lLineNumbers, AllTrim(Str(nRow)) + ": ", "") + Super:GetLine(nRow)
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METHOD LineColor(nRow) CLASS TBrwText
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local cColor, lHilited, lBreak, nIndex := CLR_CODE
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lHilited := (nRow == ::nActiveLine)
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lBreak := AScan(::aBreakPoints, nRow) > 0
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if lHilited
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nIndex += CLR_CURSOR
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endif
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if lBreak
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nIndex += CLR_BKPT
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endif
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cColor := hb_ColorIndex(::cColorSpec, nIndex)
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return cColor
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METHOD ToggleBreakPoint(nRow, lSet) CLASS TBrwText
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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 Search( cString, lCaseSensitive, nMode ) CLASS TBrwText
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local nFrom, nTo, nStep, nFor
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local lFound
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DEFAULT lCaseSensitive TO .f., ;
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nMode TO 0
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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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nFrom := 1
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nTo := ::naTextLen
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nStep := 1
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case nMode == 1 // Forward
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nFrom := Min( ::nRow + 1, ::naTextLen )
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nTo := ::naTextLen
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nStep := 1
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case nMode == 2 // Backward
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nFrom := Max( ::nRow - 1, 1 )
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nTo := 1
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nStep := -1
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end case
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for nFor := nFrom to nTo Step nStep
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if cString $ iif( lCaseSensitive, ::GetLine( nFor ), Upper( ::GetLine( nFor ) ) )
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lFound := .t.
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::GotoLine( nFor )
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exit
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endif
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next
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return lFound
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