Tycho is the next-generation user-interface system we are building for
the Ptolemy project. It is a complete [incr Tcl] application
structured as an extensible class library. Our goal is to make it
easy to extend this basic application with functionality and a user
interface for specialized applications such as electronic design and
simulation. The Tycho library includes a selection of general-purpose
widgets, syntax-sensitive text editors, and graphical editing support.
It incorporates architectural features that make it easy for different
editors and viewers to share data and screen space. Finally,
structured support for incorporating C and Java packages into this
framework allows us to use those languages to complement the scripting
and user-interface features of Tcl/Tk.