Feature-request: Simple drawing from ghci functionality

[permeakra]

It would be great to have a function that could be called from ghci to simply display the diagram in a new resizable window with everything required to setup gtk hidden.

[byorgey]

Sounds like a great idea to me. This could be a good little project for someone looking to get their toes wet contributing to diagrams. The hardest part is just figuring out how to do the requisite GTK setup, but it should be possible to crib a lot of that from other similar projects.