Class: SelectionInHierarchy

• Inheritance
• Description
• Instance protocol
  • accessing
  • accessing-sequencable
  • adding & removing
  • hierarchy manipulation
  • private
  • selection
  • testing & debugging

Inheritance:

   Object
   |
   +--Model
      |
      +--SelectionInHierarchy

Package:

stx:libwidg2

Category:

Interface-Support-Models

Version:

rev: 1.19 date: 2023/07/15 18:32:46

user: cg

file: SelectionInHierarchy.st directory: libwidg2

module: stx stc-classLibrary: libwidg2

Description:

THIS CLASS IS OBSOLETE - use HierarchicalListView

model for a selection in a hierarchical list.
See examples in SelectionInHierarchyView.

Notice: this class was provided for free by a customer
        It is more or less obsoleted by SelectionInTree, which provides
        similar (but more sphisticated) functionality.
        SelectionInHierarchy remains in the system for backward compatibility.

copyright
COPYRIGHT (c) 1994 by AEG Industry Automation
COPYRIGHT (c) 1994 by Claus Gittinger
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Instance protocol:

 getHierarchyNodeForContents: something

return the hierarchyNode whose contents is something

 list

Answer a collection of nodes representing the
list of currently viewed objects.

 root: aHierarchyNode

Set the root object - this means initialization.

 selectedPath

Answer the pathName to the currently selected node.

 setHideToChildren: aBoolean startingAt: aHierarchyNode

set the hide-Falg to aBoolean starting at aHierarchyNode down

 showCompleteHierarchyStartingAtNode: aHierarchyNode

Set the hide-Flag to false for the hierarchy starting at aHierarchyNode

 addChildAndSubChildren: aHierarchyNode below: existingHierarchyNode after: aChild

Add a new HierarchyNode to the tree.

 addChildAndSubChildren: aHierarchyNode below: existingHierarchyNode at: anIndex

 add: aChild below: aParent

add a new HierarchyNode to the tree.

 add: aChild belowIndex: aParentIndex

Add a new HierarchyNode to the tree below the node
which is found in the list at anIndex.

 remove: aHierarchyNode

Remove aHierarchyNode and all its children.

 removeBelow: existingHierarchyNode

Remove all children below an existingHierarchyNode .

 removeBelowIndex: anIndex

Remove all the children of aHierarchyNode
which is found in the list at anIndex.

 removeIndex: anIndex

Remove the HierarchyNode and all its children
which is found in the list at anIndex.

 collapse

If possible, collapse the tree at the currently selected node.
The tree structure can be restored again with #expand.

 collapseAll

If possible, collapse the tree at the currently selected node.
A latter #expand will show the next hierarchy level

 expand

If possible, expand the tree
at the currently selected node.

 expandAll

If possible, expand the tree completely to all leaves
at the currently selected node.

 hideShow

If possible, expand or collaps the tree
at the currently selected node.

 setNewList

Travers the tree and build a new list.

 doubleClickSelection: anIndex

Set the current selected object to be the element
at anIndex of the selection list.
Also expand or collapse the tree at that point.

 selectedNode

returns current selected node or nil

 selection

get the selection or nil

 selection: anIndexOrNil

set the selection

 selectionIndex

get the selection or nil

 selectionIndex: anIndexOrNil

set the selection

 root

get the root node