author | Claus Gittinger <cg@exept.de> |
Sun, 07 Mar 1999 14:30:12 +0100 | |
changeset 1233 | ba2244433fd4 |
parent 443 | fdff91162cac |
child 1431 | 0cc20a8f2f7c |
permissions | -rw-r--r-- |
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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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SelectionInListView subclass:#SelectionInHierarchyView |
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instanceVariableNames:'itemList showConnectingLines itemClass indent itemPrintConverter' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Views-Trees' |
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! |
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!SelectionInHierarchyView 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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||
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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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[warning:] |
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this class has been more or less obsoleted by |
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the SelectionInTreeView class. |
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SelectionInHierarchyView remains in the system for backward |
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compatibility, but will be no longer maintained. |
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New applications should use SelectionInTreeView. |
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somewhat like a SelectionInListView; but specialized for hierarchical (i.e. tree-like) |
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lists and adds the functions to show/hide subtrees. |
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Requires SelectionInHierarchy as model and HierarchyNode (or compatible) list entries. |
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See examples. |
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[Author:] |
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W. Olberding AEG Factory Automation |
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[See also:] |
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SelectionInTreeView |
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SelectionInHierarchy HierarchyNode |
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SelectionInListView |
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" |
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! |
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examples |
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" |
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shows the tree of smalltalk classes: |
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[exBegin] |
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|top hierarchy hierarchyV scroller| |
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hierarchy := SelectionInHierarchy new. |
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hierarchy root:(HierarchyNode newAsTreeFromSmalltalkClass:Object). |
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hierarchy setHideToChildren:true startingAt:hierarchy root. |
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top := StandardSystemView new. |
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top extent:300@300. |
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hierarchyV := SelectionInHierarchyView new. |
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hierarchyV model: hierarchy. |
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hierarchyV action:[:nr | Transcript show:'selected:'; showCR:nr]. |
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top add:(ScrollableView forView:hierarchyV) |
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in:((0.0 @ 0.0 ) corner:( 1.0 @ 1.0)). |
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top open. |
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[exEnd] |
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same, with nice connecting links: |
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(sorry - this works only with some fonts - see comment in #getListFromModel) |
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[exBegin] |
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|top hierarchy hierarchyV scroller| |
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hierarchy := SelectionInHierarchy new. |
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hierarchy root:(HierarchyNode newAsTreeFromSmalltalkClass:Object). |
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hierarchy setHideToChildren:true startingAt:hierarchy root. |
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top := StandardSystemView new. |
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top extent:300@300. |
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hierarchyV := SelectionInHierarchyView new. |
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hierarchyV showConnectingLines:true. |
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hierarchyV model: hierarchy. |
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hierarchyV action:[:nr | Transcript show:'selected:'; showCR:nr]. |
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top add:(ScrollableView forView:hierarchyV) |
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in:((0.0 @ 0.0 ) corner:( 1.0 @ 1.0)). |
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top open. |
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[exEnd] |
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" |
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! ! |
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!SelectionInHierarchyView methodsFor:'accessing - selection'! |
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selectElement:anObject |
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"select the element with same printString as the argument, anObject" |
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|index| |
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index:= 1. |
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list notNil ifTrue:[ |
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list do:[:each| |
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((each withoutSpaces) = (anObject printString)) ifTrue:[ |
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self selection:index. |
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^ index |
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]. |
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index:= index + 1. |
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]. |
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]. |
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^index |
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"Modified: 10.10.1994 / 16:13:39 / W.Olberding" |
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"Modified: 16.4.1997 / 12:40:05 / cg" |
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! |
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selection: anIndex |
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"Pass the selection along to the model." |
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super selection: anIndex. |
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model selection: anIndex. |
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"Modified: 10.10.94 / 16:13:38 / W.Olberding"! |
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selectionIndex: anIndex |
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"Pass the selection along to the model." |
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super selection: anIndex. |
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model selection: anIndex. |
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"Modified: 10.10.94 / 16:13:38 / W.Olberding" |
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! ! |
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!SelectionInHierarchyView methodsFor:'event handling'! |
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buttonPress:button x:x y:y |
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|oldSelection listLineNr| |
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((button == 1) or:[button == #select]) ifTrue:[ |
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enabled ifTrue:[ |
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oldSelection := selection. |
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listLineNr := self visibleLineToListLine:(self visibleLineOfY:y). |
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(selectConditionBlock isNil or:[selectConditionBlock value:listLineNr]) ifTrue:[ |
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listLineNr notNil ifTrue: [ |
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self selectWithoutScroll:listLineNr |
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]. |
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((ignoreReselect not and:[selection notNil]) |
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or:[selection ~= oldSelection]) ifTrue:[ |
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"actionBlock notNil ifTrue:[actionBlock value:selection]." |
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"the ST-80 way of doing things" |
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model notNil ifTrue:[ |
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model perform:#selectionIndex: with:(selection) |
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] |
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]. |
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clickLine := listLineNr |
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] |
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] |
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] ifFalse:[ |
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super buttonPress:button x:x y:y |
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] |
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"Modified: 10.10.94 / 17:13:38 / W.Olberding" |
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"Modified: 08.11.94 / 15:38:43 / R.Sailer" |
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! |
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keyPress:key x:x y:y |
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"a key was pressed - handle [-][+][*] here" |
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(key == $-) ifTrue: [^ model collapse]. |
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(key == $+) ifTrue: [^ model expand]. |
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(key == $*) ifTrue: [^ model expandAll]. |
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(key == $.) ifTrue: [^ model collapseAll]. |
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super keyPress:key x:x y:y |
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"Modified: 10.10.94 / 16:13:38 / W.Olberding"! ! |
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!SelectionInHierarchyView methodsFor:'initialization'! |
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initialize |
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super initialize. |
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showConnectingLines := true. |
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indent := 2. |
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self doubleClickAction: |
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[:selection | model doubleClickSelection: selection ]. |
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"this will usualy initiate a hide/show operation" |
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"Modified: 10.10.1994 / 16:13:39 / W.Olberding" |
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"Modified: 16.4.1997 / 12:37:38 / cg" |
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! |
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itemPrintConverter:aBlock |
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"set a converter block, which returns a listEntry |
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for a passed node. If left undefined, an indented string |
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based upon the nodes name is generated." |
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itemPrintConverter := aBlock |
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"Modified: 16.4.1997 / 13:06:22 / cg" |
252 | 217 |
! |
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showConnectingLines:aBoolean |
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showConnectingLines := aBoolean |
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252 | 221 |
! ! |
84 | 222 |
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!SelectionInHierarchyView methodsFor:'model access'! |
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getListAttributes |
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"get list attributes (selectable, disabled ...) from model)" |
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^Array new: 0. |
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"Modified: 10.10.94 / 16:13:38 / W.Olberding"! |
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getListFromModel |
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"Get list entries from model. |
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Answer them as idented Text." |
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|listOfNodes itemList textLine treeLevels isLastOnLevel oldLevel |
259 | 237 |
blockGraphicCharacters| |
254 | 238 |
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259 | 239 |
listOfNodes := model list. |
240 |
listOfNodes isNil ifTrue:[^ #()]. |
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itemPrintConverter notNil ifTrue:[ |
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"/ externally provided node-to-listentry converter |
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"/ allows hierarchyNodes to be presented in any |
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"/ programmer defined way ... |
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itemList := listOfNodes collect:[:aNode | |
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248 |
itemPrintConverter value:aNode |
259 | 249 |
]. |
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] ifFalse:[ |
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showConnectingLines ifFalse:[ |
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itemList := listOfNodes collect: [ :aNode | |
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textLine := ReadWriteStream on: String new. |
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aNode level timesRepeat: [ |
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textLine spaces:indent. |
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]. |
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textLine nextPutAll: aNode name. |
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aNode isExpandable ifTrue: [ |
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textLine nextPutAll: ' ...'. |
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]. |
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textLine contents. |
259 | 262 |
]. |
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] ifTrue:[ |
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"/ claus: |
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"/ mhmh - the AEG code depends on those blockGraphic |
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"/ characters being in the font. |
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267 |
"/ |
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268 |
"/ how can we find out what characters there are ? |
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269 |
"/ (X maps missing chars to a space). |
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|
270 |
"/ we should really rewrite this to use a private bitmap font ... |
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271 |
|
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272 |
blockGraphicCharacters := Array with:$| |
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273 |
with:$+ |
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274 |
with:$+ |
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275 |
with:$-. |
84 | 276 |
|
361
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277 |
"/ blockGraphicCharacters := Array with:(Character value:25) |
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|
278 |
"/ with:(Character value:14) |
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|
279 |
"/ with:(Character value:21) |
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|
280 |
"/ with:(Character value:18). |
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281 |
|
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282 |
isLastOnLevel:=Set new. |
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283 |
treeLevels:=Set new. |
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284 |
oldLevel:=0. |
259 | 285 |
|
361
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286 |
listOfNodes reverseDo: [ :aNode | |
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|
287 |
(treeLevels includes:(aNode level)) ifFalse:[ |
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288 |
isLastOnLevel add:aNode. |
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289 |
treeLevels add:(aNode level). |
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290 |
]. |
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|
291 |
aNode level < oldLevel ifTrue:[ |
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292 |
treeLevels remove:oldLevel. |
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293 |
]. |
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294 |
oldLevel:=aNode level. |
259 | 295 |
]. |
361
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296 |
|
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297 |
treeLevels:=Set new. |
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298 |
oldLevel:=0. |
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299 |
itemList := listOfNodes collect: [ :aNode | |
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300 |
textLine := ReadWriteStream on: String new. |
84 | 301 |
|
361
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302 |
1 to:((aNode level)-1) do: [ :l | |
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|
303 |
(treeLevels includes:l) ifTrue:[ |
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|
304 |
textLine space; nextPut:(blockGraphicCharacters at:1); space. |
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|
305 |
]ifFalse:[ |
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|
306 |
textLine space; space; space. |
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|
307 |
] |
259 | 308 |
]. |
361
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|
309 |
treeLevels add:(aNode level). |
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|
310 |
oldLevel:=aNode level. |
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changeset
|
311 |
|
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changeset
|
312 |
(aNode = (listOfNodes first)) ifFalse:[ |
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|
313 |
textLine space. |
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changeset
|
314 |
(isLastOnLevel includes:aNode)ifTrue:[ |
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|
315 |
textLine nextPut:(blockGraphicCharacters at:2). |
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|
316 |
treeLevels remove:(aNode level). |
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changeset
|
317 |
] ifFalse:[ |
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changeset
|
318 |
textLine nextPut:(blockGraphicCharacters at:3). |
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|
319 |
]. |
259 | 320 |
textLine nextPut:(blockGraphicCharacters at:4). |
321 |
]. |
|
361
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|
322 |
aNode isExpandable ifTrue: [ |
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|
323 |
textLine nextPutAll: '[+]'. |
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|
324 |
] ifFalse:[ |
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|
325 |
aNode isCollapsable ifTrue: [ |
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changeset
|
326 |
textLine nextPutAll: '[-]'. |
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|
327 |
] ifFalse:[ |
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changeset
|
328 |
textLine nextPut:(blockGraphicCharacters at:4). |
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changeset
|
329 |
]. |
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diff
changeset
|
330 |
]. |
84 | 331 |
|
361
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changeset
|
332 |
textLine nextPutAll:' ', aNode name. |
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changeset
|
333 |
textLine contents. |
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diff
changeset
|
334 |
]. |
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diff
changeset
|
335 |
] |
259 | 336 |
]. |
84 | 337 |
|
361
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changeset
|
338 |
^itemList |
84 | 339 |
|
361
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|
340 |
"Modified: 10.10.1994 / 16:13:39 / W.Olberding" |
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|
341 |
"Modified: 16.4.1997 / 12:43:20 / cg" |
84 | 342 |
! |
343 |
||
252 | 344 |
getSelectionFromModel |
345 |
"Get the current list selection from model. " |
|
346 |
||
347 |
^ model selectionIndex |
|
348 |
||
349 |
"Modified: 10.10.94 / 16:13:39 / W.Olberding" |
|
350 |
! |
|
351 |
||
254 | 352 |
model:aModel |
353 |
super model:aModel. |
|
354 |
self setNewList |
|
252 | 355 |
! ! |
84 | 356 |
|
252 | 357 |
!SelectionInHierarchyView methodsFor:'private'! |
358 |
||
254 | 359 |
setNewList |
360 |
"Build a completely new hierarchy list." |
|
361 |
||
84 | 362 |
|
254 | 363 |
self setList: (self getListFromModel). |
364 |
"/ self attributes: (self getListAttributes). |
|
365 |
self selection: (self getSelectionFromModel). |
|
252 | 366 |
|
254 | 367 |
"Modified: 10.10.94 / 17:13:38 / W.Olberding" |
368 |
"Modified: 08.11.94 / 15:28:03 / R.Sailer"! ! |
|
84 | 369 |
|
370 |
!SelectionInHierarchyView methodsFor:'updating'! |
|
371 |
||
254 | 372 |
update: aSymbol with:aParameter from:changedObject |
373 |
"Change my apperance according to the occurred change." |
|
84 | 374 |
|
254 | 375 |
aSymbol==#list |
376 |
ifTrue: [^self setNewList]. |
|
377 |
aSymbol==#selection |
|
378 |
ifTrue: [^self selection: self getSelectionFromModel]. |
|
379 |
aSymbol==#attributes |
|
380 |
ifTrue: []. |
|
84 | 381 |
|
254 | 382 |
"Modified: 10.10.94 / 16:13:38 / W.Olberding"! ! |
84 | 383 |
|
259 | 384 |
!SelectionInHierarchyView class methodsFor:'documentation'! |
84 | 385 |
|
252 | 386 |
version |
1233 | 387 |
^ '$Header: /cvs/stx/stx/libwidg2/SelectionInHierarchyView.st,v 1.10 1999-03-07 13:29:53 cg Exp $' |
84 | 388 |
! ! |