parameters: (self, event)
docstring: This is called when the mouse moves across the canvas
          :param event: An event object with information on the current mouse position
docstring_summary: This is called when the mouse moves across the canvas
          :param event: An event object with information on the current mouse position
docstring_tokens: This is called when the mouse moves across the canvas : param event : An event object with information on the current mouse position
function: def motion_notify_callback(self, event):
          """
          This is called when the mouse moves across the canvas
          :param event: An event object with information on the current mouse position
          """
          self.mouse_state.motion_notify_callback(event)
function_tokens: def motion_notify_callback ( self , event ) : self . mouse_state . motion_notify_callback ( event )