35 lines
822 B
Rust
35 lines
822 B
Rust
use crate::prelude::*;
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pub struct Sized {
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pub inner: WidgetHandle,
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pub x: Option<Len>,
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pub y: Option<Len>,
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}
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impl Sized {
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fn apply_to_outer(&self, ctx: &mut SizeCtx) {
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if let Some(x) = self.x {
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ctx.outer.x.select_len(x.apply_rest());
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}
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if let Some(y) = self.y {
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ctx.outer.y.select_len(y.apply_rest());
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}
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}
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}
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impl Widget for Sized {
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fn draw(&mut self, painter: &mut Painter) {
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painter.widget(&self.inner);
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}
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fn desired_width(&mut self, ctx: &mut SizeCtx) -> Len {
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self.apply_to_outer(ctx);
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self.x.unwrap_or_else(|| ctx.width(&self.inner))
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}
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fn desired_height(&mut self, ctx: &mut SizeCtx) -> Len {
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self.apply_to_outer(ctx);
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self.y.unwrap_or_else(|| ctx.height(&self.inner))
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}
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}
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