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More heading configuration

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This commit is contained in:
Laurenz 2022-01-13 14:14:34 +01:00
parent c7f52ed048
commit 8013a0d0e6
1 changed files with 27 additions and 2 deletions
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29
src/library/heading.rs
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@ -17,9 +17,16 @@ pub struct HeadingNode {
impl HeadingNode {
/// The heading's font family.
pub const FAMILY: Smart<FontFamily> = Smart::Auto;
/// The size of text in the heading. Just the surrounding text size if
/// `auto`.
pub const SIZE: Smart<Linear> = Smart::Auto;
/// The fill color of text in the heading. Just the surrounding text color
/// if `auto`.
pub const FILL: Smart<Paint> = Smart::Auto;
/// The extra padding above the heading.
pub const ABOVE: Length = Length::zero();
/// The extra padding below the heading.
pub const BELOW: Length = Length::zero();
fn construct(_: &mut EvalContext, args: &mut Args) -> TypResult<Node> {
Ok(Node::block(Self {
@ -30,7 +37,10 @@ impl HeadingNode {
fn set(args: &mut Args, styles: &mut StyleMap) -> TypResult<()> {
styles.set_opt(Self::FAMILY, args.named("family")?);
styles.set_opt(Self::SIZE, args.named("size")?);
styles.set_opt(Self::FILL, args.named("fill")?);
styles.set_opt(Self::ABOVE, args.named("above")?);
styles.set_opt(Self::BELOW, args.named("below")?);
Ok(())
}
}
@ -46,7 +56,10 @@ impl Layout for HeadingNode {
let mut passed = StyleMap::new();
passed.set(TextNode::STRONG, true);
passed.set(TextNode::SIZE, Relative::new(upscale).into());
passed.set(
TextNode::SIZE,
styles.get(Self::SIZE).unwrap_or(Relative::new(upscale).into()),
);
if let Smart::Custom(family) = styles.get_ref(Self::FAMILY) {
passed.set(
@ -62,6 +75,18 @@ impl Layout for HeadingNode {
passed.set(TextNode::FILL, fill);
}
self.child.layout(ctx, regions, passed.chain(&styles))
let mut frames = self.child.layout(ctx, regions, passed.chain(&styles));
let above = styles.get(Self::ABOVE);
let below = styles.get(Self::BELOW);
// FIXME: Constraints and region size.
for Constrained { item: frame, .. } in &mut frames {
let frame = Rc::make_mut(frame);
frame.size.y += above + below;
frame.translate(Point::with_y(above));
}
frames
}
}