MNT: make set_animated smarter

tacaswell · tacaswell · commit a5f5ab51adfe · 2015-08-13T21:42:37.000-04:00
- short circuit if not really chaning state
 - don't fire stale trigger on changing animation state
diff --git a/lib/matplotlib/artist.py b/lib/matplotlib/artist.py
@@ -814,9 +814,9 @@ def set_animated(self, b):
 
         ACCEPTS: [True | False]
         """
-        self._animated = b
-        self.pchanged()
-        self.stale = True
+        if self._animated != b:
+            self._animated = b
+            self.pchanged()
 
     def update(self, props):
         """
