docs: def requestTreeMenu(self, point):
          """
          Emits the itemMenuRequested and treeMenuRequested signals
          for the given item.
          
          :param      point | <QPoint>
          """
          item = self.uiGanttTREE.itemAt(point)
          if item:
              glbl_pos = self.uiGanttTREE.viewport().mapToGlobal(point)
              self.treeMenuRequested.emit(item, glbl_pos)
              self.itemMenuRequested.emit(item, glbl_pos)