Merge pull request #1982 from efiring/SpanSelector_blit_bug

pelson · pelson · commit 6131cf7562c6 · 2013-05-07T05:20:28.000-07:00
Fix bug in SpanSelector, introduced in commit dd32575
diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
@@ -1072,10 +1072,12 @@ def __init__(self, ax, onselect, direction, minspan=None, useblit=False,
         self.buttonDown = False
         self.prev = (0, 0)
 
+        # Set useblit based on original canvas.
+        self.useblit = useblit and self.canvas.supports_blit
+
         # Reset canvas so that `new_axes` connects events.
         self.canvas = None
         self.new_axes(ax)
-        self.useblit = useblit and self.canvas.supports_blit
 
     def new_axes(self, ax):
         self.ax = ax
