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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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IdentityDictionary subclass:#KeyboardMap
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instanceVariableNames:'current'
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classVariableNames:''
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poolDictionaries:''
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category:'Interface-Support'
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!
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KeyboardMap comment:'
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libview/KeyboardMap.st,v 1.6 1995-02-06 00:37:29 claus Exp $
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'!
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!KeyboardMap class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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72
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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version
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"
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$Header: /cvs/stx/stx/libview/KeyboardMap.st,v 1.6 1995-02-06 00:37:29 claus Exp $
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"
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!
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documentation
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"
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instances of KeyboardMap are used for mapping keystrokes AND sequences
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of keystrokes to a function key.
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89
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There is usually only one instance in the system - held in an instance
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variable of Display.
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The setup of this map is done in the 'smalltalk.rc' or one of the
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'display.rc' files during startup.
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To add a mapping (for example, to attach the logical function 'DoIt' to
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the key-combination Cmd-'d'):
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|m|
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m := Display keyboardMap.
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m bindValue:#DoIt to:#Cmdd.
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Key sequences can also be defined (hey emacs fans ;-) as in:
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|m|
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m := Display keyboardMap.
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m bindValue:#DoIt to:#Ctrlx followedBy:#Ctrld
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Key prefixes are defined in the DeviceWorkstation>>translateKey: method.
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Typical prefixes are Cmd (for Alt or Meta), Ctrl etc.
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Some keyboards offer both Alt and Meta keys - on those, the first has a
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prefix of Alt, the second has Cmd as prefix. Keyboards with only an Alt
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key will will create prefix codes of Cmd for that.
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To remove a mapping, use the same value for both logical and physical key,
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as in:
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|m|
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m := Display keyboardMap.
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m bindValue:#Cmdd to:#Cmdd.
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"
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! !
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!KeyboardMap methodsFor:'accessing'!
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bindValue:logicalKey to:aKey
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aKey == logicalKey ifTrue:[
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self removeKey:aKey
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] ifFalse:[
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self at:aKey put:logicalKey
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]
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!
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bindValue:logicalKey to:key1 followedBy:key2
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|submap|
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submap := self at:key1 ifAbsent:[].
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submap isNil ifTrue:[
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submap := KeyboardMap new.
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self at:key1 put:submap.
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].
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submap at:key2 put:logicalKey
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!
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valueFor:aKey
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|where value|
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where := (current notNil ifTrue:[current] ifFalse:[self]).
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value := where at:aKey ifAbsent:aKey.
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(value isMemberOf:KeyboardMap) ifTrue:[
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current := value.
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^ nil.
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].
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current := nil.
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^ value
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! !
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