This class provides deletion support for most simple JGraph components.
A list of GraphListeners which is smart enough to call the correct methods on these listeners given a GraphEvent's ID.
A logger of graph events.
A Figure that is customized for representing state bubbles.
A NodeRenderer implementation which allows a user to add different specialized node renderers which are called selectively, based on the type of the user object that is contained in the node that is being rendered.