//#![feature(lazy_type_alias)]
#![feature(type_alias_impl_trait)]
#![feature(impl_trait_in_assoc_type)]
mod coordinate;   pub use self::coordinate::*;
mod size;         pub use self::size::*;
mod area;         pub use self::area::*;
mod output;       pub use self::output::*;
mod measure;      pub use self::measure::*;
mod thunk;        pub use self::thunk::*;
mod op_cond;      pub use self::op_cond::*;
mod op_iter;      pub use self::op_iter::*;
mod op_align;     pub use self::op_align::*;
mod op_bsp;       pub use self::op_bsp::*;
mod op_transform; pub use self::op_transform::*;
mod view;         pub use self::view::*;
pub(crate) use std::marker::PhantomData;
pub(crate) use std::error::Error;
pub(crate) use ::tek_edn::*;
/// Standard result type.
pub type Usually<T> = Result<T, Box<dyn Error>>;
/// Standard optional result type.
pub type Perhaps<T> = Result<Option<T>, Box<dyn Error>>;
#[cfg(test)] #[test] fn test_stub_output () -> Usually<()> {
    use crate::*;
    struct TestOutput([u16;4]);
    impl Output for TestOutput {
        type Unit = u16;
        type Size = [u16;2];
        type Area = [u16;4];
        fn area (&self) -> [u16;4] {
            self.0
        }
        fn area_mut (&mut self) -> &mut [u16;4] {
            &mut self.0
        }
        fn place (&mut self, _: [u16;4], _: &impl Render<TestOutput>) {
            ()
        }
    }
    impl Content<TestOutput> for String {
        fn render (&self, to: &mut TestOutput) {
            to.area_mut().set_w(self.len() as u16);
        }
    }
    Ok(())
}
#[cfg(test)] #[test] fn test_dimensions () {
    use crate::*;
    assert_eq!(Area::center(&[10u16, 10, 20, 20]), [20, 20]);
}
#[cfg(test)] #[test] fn test_layout () -> Usually<()> {
    use ::tek_tui::{*, tek_output::*};
    let area: [u16;4] = [10, 10, 20, 20];
    let unit = ();
    fn test (area: [u16;4], item: &impl Content<TuiOut>, expected: [u16;4]) {
        assert_eq!(Content::layout(item, area), expected);
        assert_eq!(Render::layout(item, area),  expected);
    };
    test(area, &(),                    [20, 20, 0, 0]);
    test(area, &Fill::xy(()),          area);
    test(area, &Fill::x(()),           [10, 20, 20, 0]);
    test(area, &Fill::y(()),           [20, 10, 0, 20]);
    test(area, &Fixed::x(4, unit),     [18, 20, 4, 0]);
    test(area, &Fixed::y(4, unit),     [20, 18, 0, 4]);
    test(area, &Fixed::xy(4, 4, unit), [18, 18, 4, 4]);
    let four = ||Fixed::<TuiOut, _, _>::xy(4, 4, unit);
    test(area, &Align::nw(four()), [10, 10, 4, 4]);
    test(area, &Align::n(four()),  [18, 10, 4, 4]);
    test(area, &Align::ne(four()), [26, 10, 4, 4]);
    test(area, &Align::e(four()),  [26, 18, 4, 4]);
    test(area, &Align::se(four()), [26, 26, 4, 4]);
    test(area, &Align::s(four()),  [18, 26, 4, 4]);
    test(area, &Align::sw(four()), [10, 26, 4, 4]);
    test(area, &Align::w(four()),  [10, 18, 4, 4]);
    let two_by_four = ||Fixed::<TuiOut, _, _>::xy(4, 2, unit);
    test(area, &Align::nw(two_by_four()), [10, 10, 4, 2]);
    test(area, &Align::n(two_by_four()),  [18, 10, 4, 2]);
    test(area, &Align::ne(two_by_four()), [26, 10, 4, 2]);
    test(area, &Align::e(two_by_four()),  [26, 19, 4, 2]);
    test(area, &Align::se(two_by_four()), [26, 28, 4, 2]);
    test(area, &Align::s(two_by_four()),  [18, 28, 4, 2]);
    test(area, &Align::sw(two_by_four()), [10, 28, 4, 2]);
    test(area, &Align::w(two_by_four()),  [10, 19, 4, 2]);
    Ok(())
}