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generalize Fixed and bring back some more of the arranger

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🪞👃🪞 2024-09-17 00:38:22 +03:00
parent d577449b72
commit 2352b72377
4 changed files with 51 additions and 52 deletions
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22
crates/tek_core/src/space.rs
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@ -298,12 +298,32 @@ pub enum Fixed<U: Number, T> {
/// Enforce fixed width and height
XY(U, U, T),
}
impl<N: Number, T> Fixed<N, T> {
pub fn inner (&self) -> &T {
match self { Self::X(_, i) => i, Self::Y(_, i) => i, Self::XY(_, _, i) => i, }
}
}
impl<E: Engine, T: Widget<Engine = E>> Widget for Fixed<E::Unit, T> {
type Engine = E;
fn layout (&self, to: E::Size) -> Perhaps<E::Size> {
Ok(match self {
Self::X(w, _) =>
if to.w() >= *w { Some([*w, to.h()].into()) } else { None },
Self::Y(h, _) =>
if to.h() >= *h { Some([to.w(), *h].into()) } else { None },
Self::XY(w, h, _)
=> if to.w() >= *w && to.h() >= *h { Some([*w, *h].into()) } else { None },
})
}
fn render (&self, to: &mut E::Output) -> Usually<()> {
// 🡘 🡙 ←🡙→
if let Some(size) = self.layout(to.area().wh().into())? {
to.render_in(to.area().clip(size).into(), self.inner())
} else {
Ok(())
}
}
}
/// Enforce minimum size of drawing area
pub enum Min<U: Number, T> {