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use super::*;
/// A stroke of a geometric shape.
#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
pub struct Stroke {
/// The stroke's paint.
pub paint: Paint,
/// The stroke's thickness.
pub thickness: Abs,
}
impl Default for Stroke {
fn default() -> Self {
Self {
paint: Paint::Solid(Color::BLACK),
thickness: Abs::pt(1.0),
}
}
}
/// A partial stroke representation.
///
/// In this representation, both fields are optional so that you can pass either
/// just a paint (`red`), just a thickness (`0.1em`) or both (`2pt + red`) where
/// this is expected.
#[derive(Default, Copy, Clone, Eq, PartialEq, Hash)]
pub struct PartialStroke<T = Length> {
/// The stroke's paint.
pub paint: Smart<Paint>,
/// The stroke's thickness.
pub thickness: Smart<T>,
}
impl PartialStroke<Abs> {
/// Unpack the stroke, filling missing fields from the `default`.
pub fn unwrap_or(self, default: Stroke) -> Stroke {
Stroke {
paint: self.paint.unwrap_or(default.paint),
thickness: self.thickness.unwrap_or(default.thickness),
}
}
/// Unpack the stroke, filling missing fields with the default values.
pub fn unwrap_or_default(self) -> Stroke {
self.unwrap_or(Stroke::default())
}
}
impl<T: Debug> Debug for PartialStroke<T> {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
match (self.paint, &self.thickness) {
(Smart::Custom(paint), Smart::Custom(thickness)) => {
write!(f, "{thickness:?} + {paint:?}")
}
(Smart::Custom(paint), Smart::Auto) => paint.fmt(f),
(Smart::Auto, Smart::Custom(thickness)) => thickness.fmt(f),
(Smart::Auto, Smart::Auto) => f.pad("<stroke>"),
}
}
}
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