use crate::*;
pub trait HasSampler {
    fn sampler (&self) -> &Option<Sampler>;
    fn sampler_mut (&mut self) -> &mut Option<Sampler>;
    fn sample_index (&self) -> usize;
    fn view_sample <'a> (&'a self, compact: bool) -> impl Content<TuiOut> + 'a {
        self.sampler().as_ref().map(|sampler|Max::y(
            if compact { 0u16 } else { 5 }.into(),
            Fill::x(sampler.viewer(self.sample_index()))
        ))
    }
    fn view_sampler <'a> (&'a self, compact: bool, editor: &Option<MidiEditor>) -> impl Content<TuiOut> + 'a {
        self.sampler().as_ref().map(|sampler|Fixed::x(
            if compact { 4u16 } else { 40 }.into(),
            Push::y(
                if compact { 1u16 } else { 0 }.into(),
                editor.as_ref().map(|e|Fill::y(sampler.list(compact, e)))
            )
        ))
    }
}
#[macro_export] macro_rules! has_sampler {
    (|$self:ident:$Struct:ty| { sampler = $e0:expr; index = $e1:expr; }) => {
        impl HasSampler for $Struct {
            fn sampler (&$self) -> &Option<Sampler> { &$e0 }
            fn sampler_mut (&mut $self) -> &mut Option<Sampler> { &mut $e0 }
            fn sample_index (&$self) -> usize { $e1 }
        }
    }
}