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harbour-core/harbour/utils/hbmake/radios.prg
2000-12-26 22:26:15 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* radios.Prg radios gets for hbmake
*
* Copyright 2000 Luiz Rafael Culik <culik@sl.conex.net>
* 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 "getexit.ch"
#include "inkey.ch"
#include "radios.ch"
#include "common.ch"
#include "radiodef.ch"
FUNCTION RadioGets(bVar, cVar, aChoices, aGetList)
LOCAL oGet
LOCAL nRow := Row(), nCol := Col()
LOCAL nGets := Len(aChoices)
LOCAL nGet
LOCAL nStartGet := Len(aGetList) + 1
// For each element in aChoices
FOR nGet := 1 To nGets
// Display ( ) before the get
DevPos(nRow, nCol)
DevOut("( ) ")
// Create an empty get object and add it to the list
oGet := GetNew(nRow++,ncol+4,t(aChoices[nGet]),cvar)
Aadd(aGetList, oGet)
oGet:cargo := Array(RADIO_NUM_IVARS)
oGet:radioGsb := bVar
oGet:radioGets := Array(nGets)
Aeval(oGet:radioGets, {|x, n| oGet:radioGets[n] := nStartGet + n - 1})
// Radio gets have their own reader, of course
oGet:reader := {|o| RadioReader(o, aGetList) }
oGet:display()
NEXT
RETURN oGet
FUNCTION t(c)
RETURN {|x| c }
// The reader for radio buttons
Proc RadioReader( oGet, aGetList )
// read the GET if the WHEN condition is satisfied
IF ( GetPreValidate(oGet) )
// activate the GET for reading
oGet:SetFocus()
DO WHILE ( oGet:exitState == GE_NOEXIT )
// check for initial typeout (no editable positions)
IF ( oGet:typeOut )
oGet:exitState := GE_ENTER
ENDIF
// apply keystrokes until exit
DO WHILE ( oGet:exitState == GE_NOEXIT )
RadioApplyKey(oGet, InKey(0), aGetList)
ENDDO
// disallow exit if the VALID condition is not satisfied
IF ( !GetPostValidate(oGet) )
oGet:exitState := GE_NOEXIT
ENDIF
ENDDO
// de-activate the GET
oGet:KillFocus()
ENDIF
RETURN
PROC RadioApplyKey(oGet, nKey, aGetList)
LOCAL cKey
LOCAL bKeyBlock
LOCAL nSaveRow, nSaveCol
// check for SET KEY first
IF ( (bKeyBlock := SetKey(nKey)) <> NIL )
GetDoSetKey(bKeyBlock, oGet)
RETURN // NOTE
ENDIF
DO CASE
CASE ( nKey == K_UP )
oGet:exitState := GE_UP
CASE ( nKey == K_SH_TAB )
oGet:exitState := GE_UP
CASE ( nKey == K_DOWN )
oGet:exitState := GE_DOWN
CASE ( nKey == K_TAB )
oGet:exitState := GE_DOWN
CASE ( nKey == K_ENTER )
oGet:exitState := GE_ENTER
CASE nKey == K_SPACE
// Toggle state of this radio button. If the get
// currently contains this radio button, clear it.
// If it does not, set it to that value
IF Eval(oGet:radioGsb) == Eval(oGet:block)
Eval(oGet:radioGsb, "")
ELSE
// This sets the real variable to the value
// of this radio button
Eval(oGet:radioGsb, Eval(oGet:block))
ENDIF
// Ensure Updated() gets set
oGet:changed := .T.
// And redraw the getlist
DrawRadios(aGetlist, oGet)
CASE ( nKey == K_ESC )
IF ( Set(_SET_ESCAPE) )
oGet:undo()
oGet:exitState := GE_ESCAPE
ENDIF
CASE (nKey == K_PGUP )
oGet:exitState := GE_WRITE
CASE (nKey == K_PGDN )
oGet:exitState := GE_WRITE
CASE ( nKey == K_CTRL_HOME )
oGet:exitState := GE_TOP
// both ^W and ^End terminate the READ (the default)
CASE (nKey == K_CTRL_W)
oGet:exitState := GE_WRITE
CASE (nKey == K_INS)
Set( _SET_INSERT, !Set(_SET_INSERT) )
ENDCASE
RETURN
// Draw all radio buttons in aGetList to which the get object in
// oGet is attached
PROC DrawRadios(aGetList, oGet)
LOCAL nRadios := Len(oGet:radioGets)
LOCAL oGet1
LOCAL nSaveRow := Row()
LOCAL nSaveCol := Col()
LOCAL nGet
FOR nGet := 1 TO nRadios
oGet1 := aGetList[oGet:radioGets[nGet]]
DevPos(oGet1:row, oGet1:col - 3)
IF Eval(oGet1:radioGsb) == Eval(oGet1:block)
DevOut(RADIO_BUTTON)
ELSE
DevOut(" ")
ENDIF
NEXT
DevPos(nSaveRow, nSaveCol)
RETURN