css_ast/units/
angles.rs

1use super::prelude::*;
2
3// https://drafts.csswg.org/css-values/#angles
4#[derive(IntoCursor, Parse, Peek, ToCursors, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
5#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
6#[cfg_attr(feature = "css_feature_data", derive(::csskit_derives::ToCSSFeature), css_feature("css.types.angle"))]
7#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
8pub enum Angle {
9	#[atom(CssAtomSet::Grad)]
10	Grad(T![Dimension]),
11	#[atom(CssAtomSet::Rad)]
12	Rad(T![Dimension]),
13	#[atom(CssAtomSet::Turn)]
14	Turn(T![Dimension]),
15	#[atom(CssAtomSet::Deg)]
16	Deg(T![Dimension]),
17}
18
19impl From<Angle> for f32 {
20	fn from(val: Angle) -> Self {
21		match val {
22			Angle::Grad(f) => f.into(),
23			Angle::Rad(f) => f.into(),
24			Angle::Turn(f) => f.into(),
25			Angle::Deg(f) => f.into(),
26		}
27	}
28}
29
30impl ToNumberValue for Angle {
31	fn to_number_value(&self) -> Option<f32> {
32		Some((*self).into())
33	}
34}
35
36impl Angle {
37	const DEG_GRAD: f32 = 0.9;
38	const DEG_RAD: f32 = 57.295_78;
39	const DEG_TURN: f32 = 360.0;
40
41	pub fn as_degrees(&self) -> f32 {
42		match self {
43			Self::Grad(d) => Into::<f32>::into(*d) * Self::DEG_GRAD,
44			Self::Rad(d) => Into::<f32>::into(*d) * Self::DEG_RAD,
45			Self::Turn(d) => Into::<f32>::into(*d) * Self::DEG_TURN,
46			Self::Deg(d) => (*d).into(),
47		}
48	}
49}
50
51#[derive(IntoCursor, Parse, Peek, ToCursors, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
52#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
53#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(children))]
54pub enum AngleOrZero {
55	Angle(Angle),
56	#[cfg_attr(feature = "visitable", visit(skip))]
57	Zero(#[in_range(0.0..=0.0)] T![Number]),
58}
59
60#[derive(IntoCursor, Parse, Peek, ToCursors, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
61#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
62#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(children))]
63pub enum AngleOrNumber {
64	Angle(Angle),
65	#[cfg_attr(feature = "visitable", visit(skip))]
66	Number(T![Number]),
67}
68
69impl From<AngleOrZero> for f32 {
70	fn from(val: AngleOrZero) -> Self {
71		match val {
72			AngleOrZero::Angle(f) => f.into(),
73			AngleOrZero::Zero(f) => f.into(),
74		}
75	}
76}
77
78#[cfg(test)]
79mod tests {
80	use super::*;
81	use crate::CssAtomSet;
82	use css_parse::assert_parse;
83
84	#[test]
85	fn size_test() {
86		assert_eq!(std::mem::size_of::<Angle>(), 16);
87	}
88
89	#[test]
90	fn test_writes() {
91		assert_parse!(CssAtomSet::ATOMS, Angle, "0grad");
92		assert_parse!(CssAtomSet::ATOMS, Angle, "0deg");
93		assert_parse!(CssAtomSet::ATOMS, AngleOrZero, "0", AngleOrZero::Zero(_));
94	}
95}
css_ast/units/angles.rs

css_ast/units/
angles.rs
