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generalize EdnItem.

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maybe should rename it to Atom? ~90 instances of it
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🪞👃🪞 2025-01-17 19:47:35 +01:00
parent 1b9da07280
commit 143cd24e09
20 changed files with 314 additions and 286 deletions
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66
output/src/align.rs
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@ -1,66 +0,0 @@
use crate::*;
#[derive(Debug, Copy, Clone, Default)]
pub enum Alignment { #[default] Center, X, Y, NW, N, NE, E, SE, S, SW, W }
pub struct Align<E, A>(PhantomData<E>, Alignment, A);
impl<E, A> Align<E, A> {
pub fn c (a: A) -> Self { Self(Default::default(), Alignment::Center, a) }
pub fn x (a: A) -> Self { Self(Default::default(), Alignment::X, a) }
pub fn y (a: A) -> Self { Self(Default::default(), Alignment::Y, a) }
pub fn n (a: A) -> Self { Self(Default::default(), Alignment::N, a) }
pub fn s (a: A) -> Self { Self(Default::default(), Alignment::S, a) }
pub fn e (a: A) -> Self { Self(Default::default(), Alignment::E, a) }
pub fn w (a: A) -> Self { Self(Default::default(), Alignment::W, a) }
pub fn nw (a: A) -> Self { Self(Default::default(), Alignment::NW, a) }
pub fn sw (a: A) -> Self { Self(Default::default(), Alignment::SW, a) }
pub fn ne (a: A) -> Self { Self(Default::default(), Alignment::NE, a) }
pub fn se (a: A) -> Self { Self(Default::default(), Alignment::SE, a) }
}
impl<E: Output, A: Content<E>> Content<E> for Align<E, A> {
fn content (&self) -> impl Render<E> {
&self.2
}
fn layout (&self, on: E::Area) -> E::Area {
use Alignment::*;
let it = Render::layout(&self.content(), on).xywh();
let cx = on.x()+(on.w().minus(it.w())/2.into());
let cy = on.y()+(on.h().minus(it.h())/2.into());
let fx = (on.x()+on.w()).minus(it.w());
let fy = (on.y()+on.h()).minus(it.h());
let [x, y] = match self.1 {
Center => [cx, cy],
X => [cx, it.y()],
Y => [it.x(), cy],
NW => [on.x(), on.y()],
N => [cx, on.y()],
NE => [fx, on.y()],
W => [on.x(), cy],
E => [fx, cy],
SW => [on.x(), fy],
S => [cx, fy],
SE => [fx, fy],
}.into();
[x, y, it.w(), it.h()].into()
}
fn render (&self, to: &mut E) {
to.place(Content::layout(self, to.area()), &self.content())
}
}
impl<'a, E: Output + 'a, T: EdnViewData<'a, E>> TryFromEdn<'a, T> for Align<E, RenderBox<'a, E>> {
fn try_from_edn (state: &'a T, head: &EdnItem, tail: &'a [EdnItem]) -> Option<Self> {
use EdnItem::*;
Some(match (head, tail) {
(Key("align/c"), [a]) => Self::c(state.get_content(a).expect("no content")),
(Key("align/x"), [a]) => Self::x(state.get_content(a).expect("no content")),
(Key("align/y"), [a]) => Self::y(state.get_content(a).expect("no content")),
(Key("align/n"), [a]) => Self::n(state.get_content(a).expect("no content")),
(Key("align/s"), [a]) => Self::s(state.get_content(a).expect("no content")),
(Key("align/e"), [a]) => Self::e(state.get_content(a).expect("no content")),
(Key("align/w"), [a]) => Self::w(state.get_content(a).expect("no content")),
(Key("align/nw"), [a]) => Self::nw(state.get_content(a).expect("no content")),
(Key("align/ne"), [a]) => Self::ne(state.get_content(a).expect("no content")),
(Key("align/sw"), [a]) => Self::sw(state.get_content(a).expect("no content")),
(Key("align/se"), [a]) => Self::se(state.get_content(a).expect("no content")),
_ => return None
})
}
}