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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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78
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ButtonController subclass:#ToggleController
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instanceVariableNames:'action'
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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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88
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!ToggleController class methodsFor:'documentation'!
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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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version
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"
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125
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$Header: /cvs/stx/stx/libwidg/Attic/ToggleC.st,v 1.5 1995-05-09 01:56:56 claus Exp $
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88
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"
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!
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documentation
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"
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ToggleControllers redefine some of ButtonControllers behavior;
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user interaction: they always triggerOnDown, and ignore buttonrelease.
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Finally, every buttonPress leads to a toggle action.
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125
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ToggleController redefines the actionBlock, since it inherits press-
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and releaseActions, while we want one actionBlock to be used for both
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on- and off. The actionBlock (if any) is evaluated with the current
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toggles state if it expects an argument, or without argument if its a no-arg
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block.
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88
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"
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! !
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!ToggleController methodsFor:'initialization'!
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initialize
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super initialize.
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self beToggle
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! !
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!ToggleController methodsFor:'events'!
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performAction
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action notNil ifTrue:[
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active := true.
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action numArgs == 0 ifTrue:[
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action value
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] ifFalse:[
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action value:pressed
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].
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active := false.
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].
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super performAction
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! !
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!ToggleController methodsFor:'accessing'!
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action:aBlock
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"set the action to be performed. This is called
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with the toggles state as argument."
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action := aBlock
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! !
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