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facile pop culture reference 2026-07-31 06:47:30 +03:00
parent 94c26f06cc
commit fc01fd6ad3
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src/layout/full.rs Normal file
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use crate::{*, draw::*};
/// Use whole drawing area along one or both axes.
///
/// ```
/// # fn doctest_layout_full () -> Result<(), Box<dyn std::error::Error>> {
/// use tengri::{Layout, Draw, XYWH};
/// let area = XYWH(0u16, 0, 80, 25);
/// assert_eq!("1".layout(area)?, Some(XYWH(0u16, 0, 1, 1)));
/// assert_eq!("1".full_w().layout(area)?, Some(XYWH(0u16, 0, 80, 1)));
/// assert_eq!("1".full_h().layout(area)?, Some(XYWH(0u16, 0, 1, 25)));
/// assert_eq!("1".full_wh().layout(area)?, Some(XYWH(0u16, 0, 80, 25)));
/// # Ok(()) }
/// ```
pub enum Full<T: Screen, I: Draw<T>> {
__(PhantomData<T>),
W(I),
H(I),
WH(I),
}
impl_draw!(<T: Screen, I: Draw<T>,>|self: Full<T, I>, to: T|{
let XYWH(x0, y0, w0, h0) = to.area();
match self {
Self::W(item) => if let Some(XYWH(_, y, _, h)) = item.layout(to.area())? {
to.clip(XYWH(x0, y, w0, h), |to|item.draw(to))
} else {
Ok(None)
},
Self::H(item) => if let Some(XYWH(x, _, w, _)) = item.layout(to.area())? {
to.clip(XYWH(x, y0, w, h0), |to|item.draw(to))
} else {
Ok(None)
},
Self::WH(item) => if let Some(XYWH(..)) = item.layout(to.area())? {
to.clip(XYWH(x0, y0, w0, h0), |to|item.draw(to))
} else {
Ok(None)
},
_ => unreachable!(),
}
});