PRF: change draw on release to a draw_idle

tacaswell · tacaswell · commit 8bc19ec4ed46 · 2015-12-14T20:23:23.000-05:00
diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
@@ -1514,7 +1514,7 @@ def _release(self, event):
             self.stay_rect.set_height(self.rect.get_height())
             self.stay_rect.set_visible(True)
 
-        self.canvas.draw()
+        self.canvas.draw_idle()
         vmin = self.pressv
         xdata, ydata = self._get_data(event)
         if self.direction == 'horizontal':
