wxgui: fix exception in callback before label set

bhilburn · Jun 14, 2013 · d51eab5 · d51eab5
1 parent dbcba6e
commit d51eab5
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/gr-wxgui/src/python/plotter/grid_plotter_base.py b/gr-wxgui/src/python/plotter/grid_plotter_base.py
@@ -87,7 +87,10 @@ def set_point_label_coordinate(self, coor):
 		self.unlock()
 
 	def call_freq_callback(self, coor):
-		x, y = self._point_label_coordinate
+		try:
+			x, y = self._point_label_coordinate
+		except:
+			return
 		if x < self.padding_left or x > self.width-self.padding_right: return
 		if y < self.padding_top or y > self.height-self.padding_bottom: return
 		#scale to window bounds