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COPYRIGHT (c) 1995 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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'From Smalltalk/X, Version:2.10.5 on 30-mar-1995 at 5:32:55 am'!
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Object subclass:#KeyboardForwarder
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instanceVariableNames:'sourceView destinationView'
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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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!KeyboardForwarder class methodsFor:'documentation'!
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version
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"
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$Header: /cvs/stx/stx/libview/KeyboardForwarder.st,v 1.1 1995-03-31 02:57:21 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 this class can be used as delegates to forward keyboard
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events to some other view.
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Notice, that delegates dont have to be instances of
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myself; any object with a protocol similar to mine can be used as
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a delegate.
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(i.e. any object that responds to handlesKeyPress:view: / keyPress:x:y:view: etc.)
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Instance Variables:
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destinationView <View> the view which shall receive
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the forwarded keyboard events.
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"
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!
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copyright
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"
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COPYRIGHT (c) 1995 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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! !
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!KeyboardForwarder class methodsFor:'instance creation'!
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from:sourceView to:destinationView
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^ self new sourceView:sourceView; destinationView:destinationView
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!
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to:destinationView
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^ self new destinationView:destinationView
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! !
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!KeyboardForwarder methodsFor:'accessing'!
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destinationView:aView
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destinationView := aView
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!
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sourceView:aView
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sourceView := aView
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!
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destinationView
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^ destinationView
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!
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sourceView
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^ sourceView
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! !
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!KeyboardForwarder methodsFor:'queries'!
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handlesKeyPress:key inView:aView
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sourceView notNil ifTrue:[
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^ aView == sourceView
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].
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^ true
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!
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handlesKeyRelease:key inView:aView
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sourceView notNil ifTrue:[
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^ aView == sourceView
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].
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^ true
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! !
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!KeyboardForwarder methodsFor:'event forwarding'!
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keyPress:key x:x y:y view:aView
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x < 0 ifTrue:[
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"
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already delegated ... ignore
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"
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^ self
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].
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destinationView keyPress:key x:-1 y:-1
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!
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keyRelease:key x:x y:y view:aView
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x < 0 ifTrue:[
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"
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already delegated ... ignore
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"
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^ self
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].
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destinationView keyRelease:key x:-1 y:-1
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! !
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