Environment:      Siren
Superclass:         Siren.LayoutManager
Category:         MusicUI-Layout
Instance variables:   length xStep yStep treeAccessor

Instances of the HierarchyLayoutManager classes are used to generate display lists from tree-like data and tree accessors.

Instance Variables:
   length       temp. depth used in layout
   xStep       step size for x
   yStep       step size for x
   treeAccessor    the TreeAccessor used to access the model

accessing

accessor: aTA
   Set the receiver's tree accessor to the argument.

xStep: aNumber
   Set the receiver's x step size to the argument.

yStep: aNumber
   Set the receiver's y step size to the argument.

generating

addItem1: aModelNode atNode: aPath in: aDisplayList
   Add the given item to the display list.

addItem: aModelNode atNode: aPath in: aDisplayList
   Add the given item to the display list.

displayPositionFor: aPath
   Answer the display position of the element at the given path.

generateDisplayList
   Generate and answer the receiver's display list.

MetaClass:         HierarchyLayoutManager class