Package limn.components.tree
Tree is one column of rows at a depth — an indent, a disclosure
triangle where a row can open, and the application's own cell widget. Rows are realized only
where the viewport reaches, as ListView's and Table's are, and the order they
are walked in is a traversal of what is expanded rather than a list.
The application keeps its nodes. A tree is given roots and a model that answers what a
node's children are, whether it can have any at all, and — when they are not known yet — a
Work that fetches them, so a directory or a remote catalogue can open a
row before it can name what is inside it.
Columns are not here: a TreeTable is a widget still to come, and the day it arrives
is the day the anchor walk this package copies from ListView and Table collapses
into one engine the three of them share.
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ClassDescriptionTree<T>An outline over children the application provides: one column of rows at a depth, each with an indent, a disclosure triangle where it can open, and the application's own cell widget.Something was dropped on this tree.Tree.Model<T>What the tree asks the application about its own data.Tree.Move<T>Nodes of this tree were dragged to another place in it.