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"
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COPYRIGHT (c) 1992 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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Object subclass:#Model
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instanceVariableNames:'dependents'
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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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Model comment:'
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COPYRIGHT (c) 1992 by Claus Gittinger
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All Rights Reserved
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'!
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!Model class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1992 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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$Header: /cvs/stx/stx/libview2/Model.st,v 1.5 1994-06-03 00:53:26 claus Exp $
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"
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!
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documentation
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"
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Models are things that are presented in views. Instances keep track of
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which views are dependeent of them and inform them of any changes.
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They should know how to display myself in a GraphicsContext.
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This was written to be more ST-80 conform.
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Instance variables:
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dependentViews Collection the views knowing me
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"
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! !
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!Model methodsFor:'accessing'!
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dependents
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"return a Collection of dependents - nil if there is none"
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^ dependents
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dependents:aCollection
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"set the collection of dependents"
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dependents := aCollection
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! !
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!Model methodsFor:'drawing'!
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displayOn:aGraphicsContext clippingBox:aRectangle
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"display a part of me in aGraphicsContext"
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^ self subclassResponsibility
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!
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displayOn:aGraphicsContext
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"display myself in aGraphicsContext"
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^ self subclassResponsibility
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! !
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