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"
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COPYRIGHT (c) 1994 by AEG Industry Automation
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COPYRIGHT (c) 1994 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:#HierarchyNode
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instanceVariableNames:'name id parent children contents disabled hide level'
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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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!HierarchyNode class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1994 by AEG Industry Automation
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COPYRIGHT (c) 1994 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/libwidg2/HierarchyNode.st,v 1.1 1995-11-01 13:43:28 cg Exp $
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"
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!
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documentation
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"
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class to build up tree like structures to represent
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file-trees, class tress etc.
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Especially suited for use with SelectionInHierarchy and
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SelectionInHierarchyView.
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See examples in SelectionInHierarchyView.
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"
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!
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!HierarchyNode class methodsFor:'instance creation'!
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newAsTreeFromSmalltalkClass: aClass
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"create a tree of nodes with aClass and all its
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subclasses as contents."
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|newInst|
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newInst := super new initialize.
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newInst name: aClass name.
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newInst contents: aClass.
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newInst level: aClass allSuperclasses size.
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aClass subclasses do: [ :aSubClass |
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newInst addChild: (self newAsTreeFromSmalltalkClass: aSubClass).
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].
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^newInst
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!
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newWithName: aString
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|newInst|
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newInst := super new initialize.
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newInst name: aString.
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^newInst
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!
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new
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^super new initialize
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!
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newWithName: aString andId: anId
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|newInst|
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newInst := super new initialize.
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newInst name: aString.
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newInst id: anId.
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^newInst
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! !
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!HierarchyNode methodsFor:'accessing'!
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contents
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"Answer the contents of me (e.g. a set of items)"
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^contents
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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name
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"return name"
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^ name
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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level
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"answer the level in hierarchy (0=root)"
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^level
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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contents: anObject
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"Set the contents of me to any object (e.g. a set of items)"
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^contents:= anObject
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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hide: aBoolean
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"Set hide to aBoolean"
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hide:= aBoolean
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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level: anInteger
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"set the level in hierarchy (0=root)"
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level := anInteger.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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hideToFalseForPath
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"set the hide-flag to false"
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hide:= false.
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parent isNil ifTrue: [^self].
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parent hideToFalseForPath
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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parent:something
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"set parent"
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parent := something.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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name: aString
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"set the name that identifys me within my parent's context."
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name := aString.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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id
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"return id"
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^ id
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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id:something
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"set id"
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id := something.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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children: aCollectionWithElementsOfMyKind
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"set my children"
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aCollectionWithElementsOfMyKind do: [:child |
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child parent: self.
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child level: level +1.
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].
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children := aCollectionWithElementsOfMyKind.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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disabled
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"return disabled"
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^ disabled
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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disabled: aBool
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"set disabled"
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disabled := aBool.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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pathName
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"return a full path name to me"
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parent isNil ifTrue: [^ (self delimiterString), name].
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^parent pathName, (self delimiterString), name.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"! !
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!HierarchyNode methodsFor:'queries'!
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hasChildren
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^children size > 0.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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isExpandable
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"Answer true if I have hidden children"
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self hasChildren ifTrue: [ ^hide == true ].
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^false.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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isCollapsable
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"Answer true if I have shown children"
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self hasChildren ifTrue: [ ^hide == false ].
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^false.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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childrenHidden
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"Answer true if my children shall be hidden
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in hierachical printouts etc."
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^hide.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"!
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childrenShown
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"Answer true if my children shall be shown
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in hierachical printouts etc."
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^hide not.
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"Modified: 10.10.94 / 16:13:33 / W.Olberding"! !
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!HierarchyNode methodsFor:'hierarchy operations'!
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withAllShownChildren
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"Answer me, my immediate children and all my grandchildren which are
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currently not hidden.
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-- in hierachical order and alphabeticaly sorted by name within one level."
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| kids |
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kids := OrderedCollection with: self .
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self addAllShownChildrenTo: kids.
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^kids.
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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allChildren
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"Answer my immediate children plus all my grandchildren
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-- in hierachical order and alphabeticaly sorted by name within one level."
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| kids |
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kids := OrderedCollection new.
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self addAllChildrenTo: kids.
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^kids.
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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addChild: anObjectOfMyKind
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"add anObjectOfMyKind to my children"
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anObjectOfMyKind parent: self.
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anObjectOfMyKind level: level +1.
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children add: anObjectOfMyKind.
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280 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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282 |
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expand
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"Show my immediate children in hierachical printouts."
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285 |
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hide := false.
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287 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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289 |
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collapse
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"Hide my children in hierachical printouts."
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hide := true
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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removeChild: anObjectOfMyKind
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"remove anObjectOfMyKind from my children"
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anObjectOfMyKind parent: nil.
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children rehash.
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children remove: anObjectOfMyKind.
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303 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"
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!
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306 |
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removeYourself
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"remove me and all my children"
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309 |
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parent isNil ifTrue: [^nil].
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parent removeChild: self.
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312 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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314 |
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withAllChildren
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316 |
"Answer me, my immediate children and all my grandchildren
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-- in hierachical order and alphabeticaly sorted by name within one level."
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318 |
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| kids |
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kids := OrderedCollection with: self .
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self addAllChildrenTo: kids.
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^kids.
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323 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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325 |
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parent
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"return parent"
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328 |
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^ parent
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330 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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332 |
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children
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"Answer my immediate children."
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335 |
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^ children
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337 |
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338 |
"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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339 |
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addChildren: aCollectionWithElementsOfMyKind
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"add aCollectionWithElementsOfMyKind to my children"
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342 |
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aCollectionWithElementsOfMyKind do: [:child |
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child parent: self.
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child level: level +1.
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].
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children addAll: aCollectionWithElementsOfMyKind.
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348 |
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"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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350 |
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allParents
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"return all my parents (next first - root last)"
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353 |
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parent isNil ifTrue: [ ^OrderedCollection new: 0 ]
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ifFalse: [ ^parent, parent allParents ].
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356 |
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357 |
"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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358 |
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359 |
expandAll
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360 |
"Show my children and all grand children in hierachical printouts."
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361 |
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hide := false.
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363 |
children do: [ :kid | kid expandAll ].
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364 |
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365 |
"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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366 |
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367 |
collapseAll
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368 |
"Hide my children and all my grandchildren in hierachical printouts."
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369 |
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370 |
hide := true.
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371 |
children do: [ :kid | kid collapseAll ].
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372 |
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373 |
"Modified: 10.10.94 / 16:13:34 / W.Olberding"!
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374 |
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375 |
removeAllChildren
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376 |
"Remove all children of me from the tree, i.e. let them
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377 |
forget myself as parent."
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378 |
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379 |
| kids |
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380 |
kids := self allChildren.
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381 |
kids do: [:kid | kid parent: nil ].
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382 |
children := Set new.
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383 |
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384 |
"Modified: 10.10.94 / 16:13:34 / W.Olberding"! !
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385 |
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386 |
!HierarchyNode methodsFor:'private'!
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387 |
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388 |
addAllShownChildrenTo: aCollection
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|
389 |
"Add all my children in hierachical and alphabetical order
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390 |
if they are not hidden."
|
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391 |
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392 |
|myChildren|
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393 |
hide ifTrue: [^self].
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|
394 |
myChildren := children asSortedCollection:
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|
395 |
[:x :y | x name < y name ].
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|
396 |
myChildren do: [:aChild |
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|
397 |
aCollection addLast: aChild.
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|
398 |
aChild addAllShownChildrenTo: aCollection.
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|
399 |
].
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|
400 |
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|
401 |
"Modified: 10.10.94 / 16:13:35 / W.Olberding"!
|
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|
402 |
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|
403 |
addAllChildrenTo: aCollection
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|
404 |
"Add all my children in hierachical and alphabetical order."
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|
405 |
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|
406 |
|myChildren|
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|
407 |
myChildren := children asSortedCollection:
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|
408 |
[:x :y | x name < y name ].
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|
409 |
myChildren do: [:aChild |
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|
410 |
aCollection addLast: aChild.
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|
411 |
aChild addAllChildrenTo: aCollection.
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|
412 |
].
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|
413 |
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|
414 |
"Modified: 10.10.94 / 16:13:35 / W.Olberding"! !
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|
|
415 |
|
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|
416 |
!HierarchyNode methodsFor:'initialize-release'!
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|
417 |
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|
418 |
initialize
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|
419 |
"init some defaults"
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|
420 |
|
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|
421 |
" name
|
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|
422 |
id
|
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|
423 |
parent --"
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|
424 |
children := Set new.
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|
425 |
" contents := Set new."
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|
426 |
disabled := false.
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|
|
427 |
hide := false.
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|
|
428 |
level := 0. "=root"
|
|
|
429 |
|
|
|
430 |
"Modified: 10.10.94 / 16:13:35 / W.Olberding"! !
|
|
|
431 |
|
|
|
432 |
!HierarchyNode methodsFor:'constants'!
|
|
|
433 |
|
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|
434 |
delimiter
|
|
|
435 |
"Answer the delimiter character"
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|
|
436 |
|
|
|
437 |
^$/
|
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|
438 |
|
|
|
439 |
"Modified: 10.10.94 / 16:13:35 / W.Olberding"!
|
|
|
440 |
|
|
|
441 |
delimiterString
|
|
|
442 |
"Answer the delimiter character asString"
|
|
|
443 |
|
|
|
444 |
^self delimiter asString
|
|
|
445 |
|
|
|
446 |
"Modified: 10.10.94 / 16:13:35 / W.Olberding"! !
|
|
|
447 |
|
|
|
448 |
|