plotcanvas: avoid trying to adjust scrollbars if nothing drawn

For example, if Clear() is called on a plotcanvas, _adjustScrollbars() will not work, so avoid trying to do it if nothing is drawn currently.
oleksis · Jan 12, 2022 · b2199e2 · b2199e2
1 parent 77fa6cf
commit b2199e2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/wx/lib/plot/plotcanvas.py b/wx/lib/plot/plotcanvas.py
@@ -707,7 +707,8 @@ def showScrollbars(self, value):
 
         def _do_update():
             self.Layout()
-            self._adjustScrollbars()
+            if self.last_draw is not None:
+                self._adjustScrollbars()
         wx.CallAfter(_do_update)
 
     def SetUseScientificNotation(self, useScientificNotation):