glyg/scikits-image — pull request #1 by tonysyu (2012-02-25 16:31:50+00:00)
Title: Add `useblit` setting.

Add support for backends that don't support blitting (e.g. macosx; also qt4agg seems to have trouble when blitting is on).

Note: `draw_artist` methods are called in `draw_callback` when blitting is off, but not in `line_changed`. I think this should be handled by `self.canvas.draw_idle()`, but adding this to `draw_callback` (and ignoring `draw_artist` when blitting is off) did not work. I think this is because the artists aren't added to the axes on __init__, but I didn't test this.