156 lines
4.1 KiB
Plaintext
156 lines
4.1 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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* SETKEY() and related functions
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*
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* Copyright 1999 A White <awhite@user.rose.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 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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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 program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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/*
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* ChangeLog:
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*
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* V 1.1 A White Fixed wrong parameter aClone() bug in SetKeySave()
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* Added SetKeyCheck()
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* Added SetKeyGet()
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* V 1.0 A White Initial version, submitted to Harbour Projects
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*
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*/
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#include "common.ch"
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// macro substitutions to access sub-array elements of aSetKeys[]
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#define KEY 1
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#define BLOCK 2
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#define CONDITION 3
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// holds array of hot-key id, code-block, activation-block
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static s_aSetKeys := {}
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Function SetKey( anKey, bBlock, bCondition )
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local nFound
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local bReturn
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local aKey
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if ISARRAY( anKey )
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aEval( anKey, {|x| setKey( x, bBlock, bCondition ) } )
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elseif ISNUMBER( anKey ) .and. anKey <> 0
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if ( nFound := aScan( s_aSetKeys, {|x| x[ KEY ] == anKey } ) ) == 0
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if ISBLOCK( bBlock )
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aAdd( s_aSetKeys, { anKey, bBlock, bCondition } )
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endif
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else
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aKey := s_aSetKeys[ nFound ]
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if aKey[ CONDITION ] == NIL .or. eval( aKey[ CONDITION ], anKey )
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bReturn := aKey[ BLOCK ]
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endif
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if ISBLOCK( bBlock )
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aKey[ BLOCK ] := bBlock
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aKey[ CONDITION ] := bCondition
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elseif pcount() > 1 .and. bBlock == NIL
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aSize( aDel( s_aSetKeys, nFound ), len( s_aSetKeys ) - 1 )
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endif
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endif
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endif
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return bReturn
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Function HB_SetKeyGet( nKey, bCondition )
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local nFound
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if ISNUMBER( nKey ) .and. nKey <> 0
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if ( nFound := aScan( s_aSetKeys, {|x| x[ KEY ] == nKey } ) ) == 0
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bCondition := NIL
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else
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bCondition := s_aSetKeys[ nFound, CONDITION ]
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return s_aSetKeys[ nFound, BLOCK ]
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endif
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endif
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return NIL
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Function HB_SetKeySave( OldKeys )
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local aReturn := aClone( s_aSetKeys )
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if pcount() != 0 .or. ISARRAY( OldKeys )
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if OldKeys == NIL
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s_aSetKeys := {}
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else
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s_aSetKeys := aClone( OldKeys )
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endif
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endif
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return aReturn
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Function HB_SetKeyCheck( nKey, p1, p2, p3 )
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local nFound
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local aKey
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local bBlock
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if ( nFound := aScan( s_aSetKeys, {|x| x[ KEY ] == nKey } ) ) > 0
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aKey := s_aSetKeys[ nFound ]
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bBLock := aKey[ BLOCK ]
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if aKey[ CONDITION ] == NIL .or. eval( aKey[ CONDITION ], nKey )
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// is this overkill? if a code-block checks its own pcount(),
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// passing nil parameters would skew the count!
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do case
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case pcount() == 1 ; eval( bBlock, nKey )
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case pcount() == 2 ; eval( bBlock, p1, nKey )
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case pcount() == 3 ; eval( bBlock, p1, p2, nKey )
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otherwise ; eval( bBlock, p1, p2, p3, nKey )
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end case
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return .t.
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endif
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endif
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return .f.
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