css_ast/units/
resolution.rs

1use super::prelude::*;
2
3// const DPPX_IN: f32 = 96.0;
4// const DPPX_CM: f32 = DPPX_IN / 2.54;
5
6/// <https://drafts.csswg.org/css-values/#resolution>
7///
8/// ```text,ignore
9/// <resolution> = <dimension-token>
10/// ```
11#[node]
12#[derive(
13	ToCursors, Parse, Peek, IntoCursor, ToSpan, SemanticEq, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash,
14)]
15#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
16#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
17#[derive(csskit_derives::NodeWithMetadata)]
18#[metadata(node_kinds = Dimension)]
19pub enum Resolution {
20	#[atom(CssAtomSet::Dpi)]
21	Dpi(T![Dimension]),
22	#[atom(CssAtomSet::Dpcm)]
23	Dpcm(T![Dimension]),
24	#[atom(CssAtomSet::Dppx)]
25	Dppx(T![Dimension]),
26	#[atom(CssAtomSet::X)]
27	X(T![Dimension]),
28}
29
30impl From<Resolution> for f32 {
31	fn from(res: Resolution) -> Self {
32		match res {
33			Resolution::Dpi(r) => r.into(),
34			Resolution::Dpcm(r) => r.into(),
35			Resolution::Dppx(r) => r.into(),
36			Resolution::X(r) => r.into(),
37		}
38	}
39}
40
41#[cfg(test)]
42mod tests {
43	use super::*;
44	use crate::CssAtomSet;
45	use css_parse::assert_parse;
46
47	#[test]
48	fn test_writes() {
49		assert_parse!(CssAtomSet::ATOMS, Resolution, "1dppx");
50		assert_parse!(CssAtomSet::ATOMS, Resolution, "1x");
51	}
52}
css_ast/units/resolution.rs

css_ast/units/
resolution.rs
