ListEntry.st
author Claus Gittinger <cg@exept.de>
Mon, 11 Dec 1995 18:05:14 +0100
changeset 108 b228b94be590
parent 98 de14b996ee80
child 109 88467c13bf31
permissions -rw-r--r--
displayOpaque fixes
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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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Object subclass:#ListEntry
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	 instanceVariableNames:''
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	 classVariableNames:''
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	 poolDictionaries:''
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	 category:'Views-Support'
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!
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!ListEntry 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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documentation
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    ListEntry is an abstract superclass for objects which can be used
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    in place of strings in ListViews or SelectionInListViews.
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    If you want to create new subclasses, implement (at least) the methods
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    found in the 'required protocol' category.
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"
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! !
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!ListEntry methodsFor:'queries'!
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includes:aCharacter 
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    ^ self string includes:aCharacter
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!
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string
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    ^ self asString
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! !
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!ListEntry methodsFor:'drawing'!
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displayOpaqueOn:aGC x:x y:y
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    "display the receiver on a GC"
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    ^ self displayOn:aGC x:x y:y opaque:true
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!
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displayOn:aGC x:x y:y
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    "display the receiver on a GC"
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    ^ self displayOn:aGC x:x y:y opaque:false 
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! !
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!ListEntry methodsFor:'required protocol'!
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asString
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    "return the receiver as a string (for example, to store it in a file)"
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    ^ self subclassResponsibility
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!
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displayOn:aGC x:x y:yopaque:opaque
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    "display the receiver on a GC"
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    ^ self subclassResponsibility
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!
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heightIn:aGC
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    "return the height of the receiver when displayed in aGC.
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     Assume the GC's font is taken. If that is not the case in a
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     particular subclass, this method is to be redefined there."
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    ^ aGC font height
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    "Created: 23.11.1995 / 00:19:45 / cg"
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!
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widthIn:aGC
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    "return the width (in device units) of the receiver when displayed in aGC"
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    ^ self subclassResponsibility
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! !
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!ListEntry class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/libwidg2/ListEntry.st,v 1.6 1995-12-11 17:05:13 cg Exp $'
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! !