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Model subclass:#ValueModel
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instanceVariableNames:'accepted'
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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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68
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!ValueModel class methodsFor:'documentation'!
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documentation
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"
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abstract superclass for ValueHolders and Adaptors.
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Notice: this class was implemented using protocol information
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from alpha testers - it may not be complete or compatible to
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the corresponding ST-80 class. If you encounter any incompatibilities,
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please forward a note to the ST/X team.
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"
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! !
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!ValueModel class methodsFor:'instance creation'!
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new
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^ (super new) initialize
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! !
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!ValueModel methodsFor:'initialization'!
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initialize
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accepted := false
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! !
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!ValueModel methodsFor:'accessing'!
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accept
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accepted := true
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!
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value
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self subclassResponsibility
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!
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setValue:newValue
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self subclassResponsibility
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!
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value:anObject
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|oldValue|
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oldValue := self value.
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self setValue:anObject.
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anObject ~= oldValue ifTrue:[
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self changed:#value
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]
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! !
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