rust_board_snippet

 fn get_chessboard(cells_size: u32, initial_position: &str) -> Option<RefCell<ChessBoard>>
    {
        let drawing_area = DrawingArea::new();

        let logic = ChessGame::new_from_fen(initial_position);

        match logic {
            Some(game_logic) => {
                let chess_board = ChessBoard {
                    drawing_area,
                    reversed: false,
                    logic: game_logic,
                    cells_size,
                };

                let chess_board_ref = RefCell::new(chess_board);
                let chess_board_ref_2 = chess_board_ref.clone();

                chess_board_ref.borrow().drawing_area.connect_draw(move |_drawing_area, cr|{
                    chess_board_ref_2.borrow().paint(cr);
                    Inhibit(false)
                });

                Some(chess_board_ref)
            },
            _ => None
        }
    }