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output: refactor Content and Render traits

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🪞👃🪞 2025-09-06 08:46:52 +03:00
parent 74b3af2212
commit 1c21a85f27
24 changed files with 346 additions and 613 deletions
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45
output/src/layout_align.rs
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@ -48,33 +48,36 @@ impl<A> Align<A> {
#[inline] pub const fn se (a: A) -> Self { Self(Alignment::SE, a) }
}
impl<E: Output, A: Content<E>> Content<E> for Align<A> {
fn content (&self) -> impl Render<E> + '_ {
&self.1
}
impl<E: Output, A: Render<E>> Render<E> for Align<A> {
fn layout (&self, on: E::Area) -> E::Area {
self.0.align(on, &self.1)
}
fn render (&self, to: &mut E) {
to.place(self.layout(to.area()), &self.1)
}
}
impl Alignment {
fn align <E: Output> (&self, on: E::Area, content: impl Render<E>) -> E::Area {
use Alignment::*;
let it = Render::layout(&self.content(), on).xywh();
let it = content.layout(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.0 {
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();
let [x, y] = match self {
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],
};
[x, y, it.w(), it.h()].into()
}
fn render (&self, to: &mut E) {
to.place(Content::layout(self, to.area()), &self.content())
}
}