MNT : use draw_idle not draw in Gcf.draw_all

tacaswell · tacaswell · commit 8112b436af9b · 2015-05-25T00:50:37.000-04:00
`draw_idle` has a better chance of not stepping on it's own
toes and re-drawing multiple times in quick secession.

I think this will also play nicer with the OSX backend?
diff --git a/lib/matplotlib/_pylab_helpers.py b/lib/matplotlib/_pylab_helpers.py
@@ -148,6 +148,6 @@ def draw_all(cls, force=False):
         for f_mgr in cls.get_all_fig_managers():
             # TODO add logic to check if figure is stale
             if force or f_mgr.canvas.figure.stale:
-                f_mgr.canvas.draw()
+                f_mgr.canvas.draw_idle()
 
 atexit.register(Gcf.destroy_all)
