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harbour-core/harbour/source/rtl/browse.prg
1999-10-16 07:08:52 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* Quick Clipper Browse()
*
* Copyright 1999 Antonio Linares <alinares@fivetech.com>
* 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 of the License, or
* (at your option) any later version, with one exception:
*
* The exception is that if you link the Harbour Runtime Library (HRL)
* and/or the Harbour Virtual Machine (HVM) 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 HRL
* and/or HVM code into it.
*
* 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 program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
* their web site at http://www.gnu.org/).
*
*/
#include "box.ch"
#include "common.ch"
#include "inkey.ch"
function Browse( nTop, nLeft, nBottom, nRight )
local oBrw
local cOldScreen
local n, nKey, nOldCursor
local lExit := .f.
if ! Used()
return .f.
end
DEFAULT nTop TO 1, nLeft TO 0, nBottom TO MaxRow(), nRight TO MaxCol()
nOldCursor = SetCursor( 0 )
cOldScreen = SaveScreen( nTop, nLeft, nBottom, nRight )
@ nTop, nLeft, nBottom, nRight BOX B_DOUBLE
oBrw = TBrowseDb( nTop + 1, nLeft + 1, nBottom - 1, nRight - 1 )
oBrw:HeadSep = Chr( 205 )
for n = 1 to FCount()
oBrw:AddColumn( TbColumnNew( FieldName( n ), FieldBlock( FieldName( n ) ) ) )
next
while ! lExit
oBrw:ForceStable()
nKey = InKey( 0 )
do case
case nKey == K_ESC
lExit = .t.
case nKey == K_UP
oBrw:Up()
case nKey == K_DOWN
oBrw:Down()
case nKey == K_END
oBrw:End()
case nKey == K_HOME
oBrw:Home()
case nKey == K_LEFT
oBrw:Left()
case nKey == K_RIGHT
oBrw:Right()
case nKey == K_PGUP
oBrw:PageUp()
case nKey == K_PGDN
oBrw:PageDown()
case nKey == K_CTRL_PGUP
oBrw:GoTop()
case nKey == K_CTRL_PGDN
oBrw:GoBottom()
endcase
end
RestScreen( nTop, nLeft, nBottom, nRight, cOldScreen )
SetCursor( nOldCursor )
return .t.