Hi Stef, I mean, Tree structure is a standard Data Structure including store, edit and visit. (endorder,preorder). tree as a struture has a set of protocol for operations. TreeStruture is a class of Dolphin ( it has become an opensource project now ). TreeStructure implements the <treeModel> protocol and organises a collection of objects into a tree like data structure. You can organise the objects with TreeStructure when need a tree. Only one class for all applications. I think.
But in Pharo , there is no such a standard tree structure. so people makes theri owns. e.g. FTDataSource subclass: #FTTreeDataSource MorphTreeModel subclass: #SpecTreeModel Model subclass: #MorphTreeModel Dictionary subclass: #KeyedTree (not real tree) these implements mix tree structure and other attributes. if we have a standard tree struture, so we can seperate them, make the system become clean and simple. Best Regards! Liang
