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Shrink, Expand

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facile pop culture reference 2026-09-23 13:06:08 +03:00
parent 21d6674ffb
commit 1e8b18134d
1 changed files with 36 additions and 0 deletions
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36
src/layout/axis.rs
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@ -8,6 +8,14 @@ pub enum Exact<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
__(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
}
pub enum Shrink<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
__(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
}
pub enum Expand<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
__(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
}
pub enum Push<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
__(PhantomData<&'a S>), X(I, X), Y(I, X), XY(I, X, X),
}
@ -375,6 +383,34 @@ impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Ma
}
}
impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Expand<'a, S, I, X> {
fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
#[cfg(feature = "prof")] profiling::scope!("expand_draw");
let XYWH(x, y, w0, h0) = to.area();
let (item, w, h) = match self {
Self::W(item, w) => (item, (*w).into(), None),
Self::H(item, h) => (item, None, (*h).into()),
Self::WH(item, w, h) => (item, (*w).into(), (*h).into()),
_ => return Ok(None)
};
to.draw(XYWH(x, y, w0 + w.unwrap_or_default(), h0 + h.unwrap_or_default()), item)
}
}
impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Shrink<'a, S, I, X> {
fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
#[cfg(feature = "prof")] profiling::scope!("shrink_draw");
let XYWH(x, y, w0, h0) = to.area();
let (item, w, h) = match self {
Self::W(item, w) => (item, (*w).into(), None),
Self::H(item, h) => (item, None, (*h).into()),
Self::WH(item, w, h) => (item, (*w).into(), (*h).into()),
_ => return Ok(None)
};
to.draw(XYWH(x, y, w0.minus(w.unwrap_or_default()), h0.minus(h.unwrap_or_default())), item)
}
}
impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Push<'a, S, I, X> {
fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
#[cfg(feature = "prof")] profiling::scope!("push_draw");