Tools__BrowserListWithFilter.st
author Claus Gittinger <cg@exept.de>
Wed, 05 Feb 2014 19:57:41 +0100
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"
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 COPYRIGHT (c) 2006 by eXept Software AG
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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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"{ Package: 'stx:libtool' }"
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"{ NameSpace: Tools }"
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BrowserList subclass:#BrowserListWithFilter
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	instanceVariableNames:'listView filterView filterPatternHolder showFilterHolder'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'Interface-Browsers-New'
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!
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!BrowserListWithFilter class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 2006 by eXept Software AG
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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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"
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    Abstract superclass for a browser list with user filter.
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    Currently used only ChangeList and ChangeSetDiffList, but
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    user filter may be usefull for class/category lists as well.
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    [author:]
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        Jan Vrany <jan.vrany@fit.cvut.cz>
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    [instance variables:]
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    [class variables:]
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    [see also:]
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"
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! !
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!BrowserListWithFilter class methodsFor:'plugIn spec'!
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aspectSelectors
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    ^#(
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        showFilterHolder
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    )
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    "Created: / 11-02-2012 / 22:44:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!BrowserListWithFilter methodsFor:'accessing'!
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filterPattern
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    | p |
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    p := filterPatternHolder value.
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    ^p isEmptyOrNil ifTrue:[
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        nil
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    ] ifFalse:[
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        StringPattern fromString: p
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    ]
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    "Created: / 29-11-2011 / 15:23:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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showFilter
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    ^self showFilterHolder value
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    "Created: / 29-11-2011 / 15:27:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!BrowserListWithFilter methodsFor:'aspects'!
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filterPatternHolder
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    "return/create the 'filterPatternHolder' value holder (automatically generated)"
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    filterPatternHolder isNil ifTrue:[
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        filterPatternHolder := ValueHolder new.
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        filterPatternHolder addDependent:self.
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    ].
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    ^ filterPatternHolder
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!
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menuHolderWithShowFilter
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    ^[
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        | menu |
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        menu := self menuHolder value copy.
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        menu isArray ifTrue:[menu := Menu decodeFromLiteralArray: menu].
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        menu addSeparator.
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        menu addItem:
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            ((MenuItem label:(self resources at: 'Show filter'))
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                indication: self showFilterHolder;
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                yourself).
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        menu
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    ]
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    "Created: / 29-11-2011 / 15:40:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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showFilterHolder
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    "return/create the 'showFilterHolder' value holder (automatically generated)"
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    showFilterHolder isNil ifTrue:[
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        showFilterHolder := ValueHolder with: false.
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        showFilterHolder addDependent:self.
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    ].
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    ^ showFilterHolder
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    "Modified: / 29-11-2011 / 15:43:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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showFilterHolder:something
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    "set the 'showFilterHolder' value holder (automatically generated)"
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    |oldValue newValue|
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    showFilterHolder notNil ifTrue:[
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        oldValue := showFilterHolder value.
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        showFilterHolder removeDependent:self.
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    ].
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    showFilterHolder := something.
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    showFilterHolder notNil ifTrue:[
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        showFilterHolder addDependent:self.
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    ].
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    newValue := showFilterHolder value.
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    oldValue ~~ newValue ifTrue:[
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        self update:#value with:newValue from:showFilterHolder.
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    ].
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! !
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!BrowserListWithFilter methodsFor:'change & update'!
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update:something with:aParameter from:changedObject
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    "Invoked when an object that I depend upon sends a change notification."
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    changedObject == showFilterHolder ifTrue:[
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        self showFilter: showFilterHolder value.
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        ^self.
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    ].
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    changedObject == filterPatternHolder ifTrue:[
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        self enqueueDelayedUpdateList.
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        ^self
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    ].
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    super update:something with:aParameter from:changedObject
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    "Modified: / 29-11-2011 / 15:51:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified (format): / 06-06-2012 / 00:01:37 / cg"
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! !
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!BrowserListWithFilter methodsFor:'event handling-delegation'!
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handlesKeyPress:key inView:aView
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    ^ aView == filterView and:[key == #CursorDown]
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    "Created: / 06-02-2012 / 23:02:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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keyPress:key x:x y:y view:aView
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    (aView == filterView and:[key == #CursorDown]) ifTrue:[
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        listView scrolledView notNil ifTrue:[
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            listView scrolledView 
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                takeFocus;
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                keyPress: key x:x y:y.
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        ].
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    ].
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    "Created: / 06-02-2012 / 23:06:17 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 17-01-2013 / 21:28:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!BrowserListWithFilter methodsFor:'hooks'!
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commonPostBuild
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    super commonPostBuild.
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    listView isNil ifTrue:[listView := builder componentAt:#List].
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    listView isNil ifTrue:[self breakPoint: #jv].
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    filterView isNil ifTrue:[self breakPoint: #jv].
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    filterView delegate: self.
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    self showFilter: showFilterHolder value.
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    "Created: / 29-11-2011 / 14:47:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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postBuildFilterView: aView
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    filterView := aView
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    "Created: / 29-11-2011 / 14:47:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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postBuildListView: aView
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    listView := aView
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    "Created: / 29-11-2011 / 14:47:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!BrowserListWithFilter methodsFor:'private'!
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filterList: list
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    | pattern filteredList |
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    self showFilter ifFalse:[ ^ list ].
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    pattern := self filterPattern.
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    pattern isNil ifTrue:[ ^ list ].    
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    filteredList := list value select:[:each|pattern matchObject: each relax: 1].
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    filteredList isEmpty ifTrue:[
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        filteredList := list value select:[:each|pattern matchObject: each relax: 2].
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        filteredList isEmpty ifTrue:[
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            filteredList := list value select:[:each|pattern matchObject: each relax: 3].
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        ]
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    ].
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    ^filteredList
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    "Created: / 29-11-2011 / 15:31:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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showFilter: aBoolean
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    | offset |
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    listView isNil ifTrue:[ ^ self ].
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    aBoolean ifTrue:[
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        offset := filterView height.
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    ] ifFalse:[
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        offset := 0
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    ].
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    listView layout: (listView layout copy topOffset: offset) .
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    filterView isVisible: aBoolean
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    "Created: / 29-11-2011 / 14:55:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!BrowserListWithFilter class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/libtool/Tools__BrowserListWithFilter.st,v 1.7 2014-02-05 18:57:41 cg Exp $'
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!
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version_CVS
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    ^ '$Header: /cvs/stx/stx/libtool/Tools__BrowserListWithFilter.st,v 1.7 2014-02-05 18:57:41 cg Exp $'
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! !
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