docs: def setCurrentDateTime(self, dtime):
          """
          Sets the current date time for this widget.
          
          :param      dtime | <datetime.datetime>
          """
          view = self.uiGanttVIEW
          scene = view.scene()
          point = view.mapToScene(0, 0)
          x = scene.datetimeXPos(dtime)
          y = point.y()
          view.ensureVisible(x, y, 1, 1)