[Haskell-cafe] graphical user interface library for editing graphs?

[Malcolm Wallace]

Claude Heiland-Allen <claudiusmaximus at goto10.org> wrote:

> My question: can you suggest a library that would make implementing
> this  specification relatively painless?
> 
> OpenGL-based would be preferable, as I would like to scale the graph 
> under construction automatically to fit the display, and
> launchMissiles  will require something with fast rendering.

There was a Haskell-written graph editor in Dazzle, which the authors
kindly open-sourced, to become the rudimentary application Blobs:

    http://www.cs.york.ac.uk/fp/darcs/Blobs/

The GUI is implemented in wxHaskell, graphs are saved as XML files.
Some of the code may have bit-rotted since the days of ghc-6.4.

As distributed, the functionality for doing things with the graph after
drawing it is (intentionally) rather limited, since many of the
potential backends are in fact closed-source.  However, the backend is
the part that is going to be different for every client of the library
anyway.

Regards,
    Malcolm