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//! Create lines from a [`Path`] and assigns them various attributes/styles.
//!
//! [`Path`]: super::Path
pub use crate::geometry::Style;
use iced_core::Color;
/// The style of a stroke.
#[derive(Debug, Clone)]
pub struct Stroke<'a> {
/// The color or gradient of the stroke.
///
/// By default, it is set to a [`Style::Solid`] with [`Color::BLACK`].
pub style: Style,
/// The distance between the two edges of the stroke.
pub width: f32,
/// The shape to be used at the end of open subpaths when they are stroked.
pub line_cap: LineCap,
/// The shape to be used at the corners of paths or basic shapes when they
/// are stroked.
pub line_join: LineJoin,
/// The dash pattern used when stroking the line.
pub line_dash: LineDash<'a>,
}
impl<'a> Stroke<'a> {
/// Sets the color of the [`Stroke`].
pub fn with_color(self, color: Color) -> Self {
Stroke {
style: Style::Solid(color),
..self
}
}
/// Sets the width of the [`Stroke`].
pub fn with_width(self, width: f32) -> Self {
Stroke { width, ..self }
}
/// Sets the [`LineCap`] of the [`Stroke`].
pub fn with_line_cap(self, line_cap: LineCap) -> Self {
Stroke { line_cap, ..self }
}
/// Sets the [`LineJoin`] of the [`Stroke`].
pub fn with_line_join(self, line_join: LineJoin) -> Self {
Stroke { line_join, ..self }
}
}
impl<'a> Default for Stroke<'a> {
fn default() -> Self {
Stroke {
style: Style::Solid(Color::BLACK),
width: 1.0,
line_cap: LineCap::default(),
line_join: LineJoin::default(),
line_dash: LineDash::default(),
}
}
}
/// The shape used at the end of open subpaths when they are stroked.
#[derive(Debug, Clone, Copy, Default)]
pub enum LineCap {
/// The stroke for each sub-path does not extend beyond its two endpoints.
#[default]
Butt,
/// At the end of each sub-path, the shape representing the stroke will be
/// extended by a square.
Square,
/// At the end of each sub-path, the shape representing the stroke will be
/// extended by a semicircle.
Round,
}
/// The shape used at the corners of paths or basic shapes when they are
/// stroked.
#[derive(Debug, Clone, Copy, Default)]
pub enum LineJoin {
/// A sharp corner.
#[default]
Miter,
/// A round corner.
Round,
/// A bevelled corner.
Bevel,
}
/// The dash pattern used when stroking the line.
#[derive(Debug, Clone, Copy, Default)]
pub struct LineDash<'a> {
/// The alternating lengths of lines and gaps which describe the pattern.
pub segments: &'a [f32],
/// The offset of [`LineDash::segments`] to start the pattern.
pub offset: usize,
}
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