Sets the current date time for this widget.
        
        :param      dtime | <datetime.datetime>

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)