pub trait MenuIndexFromScreenCoord {
fn menu_index_from_screen_coord<'a, T: Copy>(
&self,
menu: &'a Menu<T>,
coord: Coord
) -> Option<usize>;
}
pub trait MenuIndexFromScreenCoord {
fn menu_index_from_screen_coord<'a, T: Copy>(
&self,
menu: &'a Menu<T>,
coord: Coord
) -> Option<usize>;
}