Small-screen user interface (mini-mode)

[Owen Taylor]

I was finishing up some final touches in the notebooks branch of
Reinteract today, and I had to figure out what to do with the
Hildon/Maemo code as I converted WorksheetWindow from:

The main window of the application

To:

A (rarely used) toplevel used for detached worksheet (no notebooks)

I felt that the changes I was making weren't really consistent with
the goal of being usable on a small-screen device. So, rather than
literally port the old code over, what I did was strip the Hildon code
out of WorkSheetWindow and create a separate toplevel class MiniWindow
that is (supposedly) optimized for small-screen device usage.

There's some notes and screenshots at:

http://www.reinteract.org/trac/wiki/MiniDesign

On the notebooks branch (which I will be merging into the master
branch soon), you can try it out with:

reinteract --ui=mini # Standard GTK+ widgets

or:

reinteract --ui=hildon # Tries to use the hildon libraries if prese

I haven't actually tried it on a small-screen device, so it's a little
theoretical that it's a suitable UI. And I suspect there are some
typos in the hildon code since I didn't test those code branches
around.. Feedback appreciated.

- Owen