33 lines
900 B
Rust
33 lines
900 B
Rust
use super::*;
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use crate::geom::Linear;
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/// A node that can fix its child's width and height.
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#[derive(Debug, Clone, PartialEq)]
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pub struct NodeFixed {
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/// The fixed width, if any.
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pub width: Option<Linear>,
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/// The fixed height, if any.
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pub height: Option<Linear>,
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/// The child node whose size to fix.
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pub child: Node,
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}
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impl Layout for NodeFixed {
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fn layout(&self, ctx: &mut LayoutContext, areas: &Areas) -> Layouted {
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let Areas { current, full, .. } = areas;
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let size = Size::new(
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self.width.map(|w| w.resolve(full.width)).unwrap_or(current.width),
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self.height.map(|h| h.resolve(full.height)).unwrap_or(current.height),
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);
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let areas = Areas::once(size);
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self.child.layout(ctx, &areas)
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}
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}
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impl From<NodeFixed> for NodeAny {
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fn from(fixed: NodeFixed) -> Self {
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Self::new(fixed)
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}
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}
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