canvas widget for graph-based interfaces

 Ganv is an interactive Gtk canvas widget for graph-based interfaces
 (patchers, modular synthesizers, finite state automata, interactive
 graphs, etc).
 .
 Ganv provides classes for "Modules" (boxes with "Ports"), Circles,
 and Edges (lines that connect either Ports or Circles). The user
 can rearrange items, or Ganv can automatically arrange items using
 GraphViz. Edges can be made by the user one at a time with the mouse,
 or in groups using the mouse and keyboard.
 .
 This package provides the shared library.