public GridCell < P > createCellAt ( int row , int column ) { GridCell < P > cell = this . cells [ row ] [ column ] ; if ( cell == null ) { cell = new GridCell <> ( row , column , getCellBounds ( row , column ) ) ; this . cells [ row ] [ column ] = cell ; ++ this . cellCount ; } return cell ; }
Create a cell at the specified location if there is no cell at this location .