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use crate::library::prelude::*;
/// Horizontal spacing.
pub struct HNode;
#[node]
impl HNode {
fn construct(_: &mut Context, args: &mut Args) -> TypResult<Content> {
Ok(Content::Horizontal(args.expect("spacing")?))
}
}
/// Vertical spacing.
pub struct VNode;
#[node]
impl VNode {
fn construct(_: &mut Context, args: &mut Args) -> TypResult<Content> {
Ok(Content::Vertical(args.expect("spacing")?))
}
}
/// Kinds of spacing.
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
pub enum Spacing {
/// Spacing specified in absolute terms and relative to the parent's size.
Relative(Relative<RawLength>),
/// Spacing specified as a fraction of the remaining free space in the parent.
Fractional(Fraction),
}
impl Spacing {
/// Whether this is fractional spacing.
pub fn is_fractional(self) -> bool {
matches!(self, Self::Fractional(_))
}
}
impl From<Length> for Spacing {
fn from(length: Length) -> Self {
Self::Relative(length.into())
}
}
castable! {
Spacing,
Expected: "relative length or fraction",
Value::Length(v) => Self::Relative(v.into()),
Value::Ratio(v) => Self::Relative(v.into()),
Value::Relative(v) => Self::Relative(v),
Value::Fraction(v) => Self::Fractional(v),
}
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