docs: def adjustSize( self ):
          """
          Adjusts the size of this node to support the length of its contents.
          """
          cell      = self.scene().cellWidth() * 2
          minheight = cell
          minwidth  = 2 * cell
          
          # fit to the grid size
          metrics = QFontMetrics(QApplication.font())
          width   = metrics.width(self.displayName()) + 20
          width   = ((width/cell) * cell) + (cell % width)
          
          height  = self.rect().height()
          
          # adjust for the icon
          icon = self.icon()
          if icon and not icon.isNull():
              width += self.iconSize().width() + 2
              height = max(height, self.iconSize().height() + 2)
          
          w = max(width, minwidth)
          h = max(height, minheight)
          
          max_w = self.maximumWidth()
          max_h = self.maximumHeight()
          
          if max_w is not None:
              w = min(w, max_w)
          if max_h is not None:
              h = min(h, max_h)
          
          self.setMinimumWidth(w)
          self.setMinimumHeight(h)
          
          self.rebuild()