rust-lang/rust

#[derive(Clone)]
pub struct ChessBoard
{
    drawing_area: DrawingArea,
    reversed: bool,
    logic: RefCell<ChessGame>,
    cells_size: u32,
    moved_piece: RefCell<Option<MovedPiece>>,
    pieces_images: HashMap<char, Pixbuf>,
}

#[derive(Clone, Debug)]
struct MovedPiece
{
    piece_type: Piece,
    coords_x: f64,
    coords_y: f64,
    start_file: u8,
    start_rank: u8
}

fn handle_mouse_moved(&self, coords: (f64, f64)) {
        match self.moved_piece.into_inner() {
            Some(ref mut moved_piece) => moved_piece.translate_to(coords.0, coords.1),
            None => {}
        }
    }