MNT: don't trigger draw idle if canvas is saving

tacaswell · tacaswell · commit e6be6b007c0d · 2015-09-26T16:15:43.000-04:00
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -1685,7 +1685,7 @@ def __init__(self, figure):
         #  - in interactive mode
         #  - not bunching `draw_idle` calls (ex not in IPython)
         self._is_idle_drawing = True
-
+        self._is_saving = False
         figure.set_canvas(self)
         self.figure = figure
         # a dictionary from event name to a dictionary that maps cid->func
@@ -1698,7 +1698,6 @@ def __init__(self, figure):
         self.scroll_pick_id = self.mpl_connect('scroll_event', self.pick)
         self.mouse_grabber = None  # the axes currently grabbing mouse
         self.toolbar = None  # NavigationToolbar2 will set me
-        self._is_saving = False
         self._is_idle_drawing = False
 
     @contextmanager
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -564,7 +564,7 @@ def _auto_draw_if_interactive(fig, val):
     fig : Figure
         A figure object which is assumed to be associated with a canvas
     """
-    if val and matplotlib.is_interactive():
+    if val and matplotlib.is_interactive() and not fig.canvas.is_saving():
         fig.canvas.draw_idle()
 
 
