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use iced_native::{Point, Vector};
#[derive(Debug, Clone)]
pub struct Path {
raw: lyon::path::Path,
}
impl Path {
pub fn new(f: impl FnOnce(&mut Builder)) -> Self {
let mut builder = Builder::new();
f(&mut builder);
builder.build()
}
}
#[allow(missing_debug_implementations)]
pub struct Builder {
raw: lyon::path::Builder,
}
impl Builder {
pub fn new() -> Builder {
Builder {
raw: lyon::path::Path::builder(),
}
}
#[inline]
pub fn move_to(&mut self, point: Point) {
let _ = self.raw.move_to(lyon::math::Point::new(point.x, point.y));
}
#[inline]
pub fn line_to(&mut self, point: Point) {
let _ = self.raw.line_to(lyon::math::Point::new(point.x, point.y));
}
#[inline]
pub fn arc(&mut self, arc: Arc) {
self.ellipse(arc.into());
}
#[inline]
pub fn ellipse(&mut self, ellipse: Ellipse) {
let arc = lyon::geom::Arc {
center: lyon::math::Point::new(ellipse.center.x, ellipse.center.y),
radii: lyon::math::Vector::new(ellipse.radii.x, ellipse.radii.y),
x_rotation: lyon::math::Angle::radians(ellipse.rotation),
start_angle: lyon::math::Angle::radians(ellipse.start_angle),
sweep_angle: lyon::math::Angle::radians(ellipse.end_angle),
};
arc.for_each_quadratic_bezier(&mut |curve| {
let _ = self.raw.quadratic_bezier_to(curve.ctrl, curve.to);
});
}
#[inline]
pub fn close(&mut self) {
self.raw.close()
}
#[inline]
pub fn build(self) -> Path {
Path {
raw: self.raw.build(),
}
}
}
#[derive(Debug, Clone, Copy)]
pub struct Arc {
pub center: Point,
pub radius: f32,
pub start_angle: f32,
pub end_angle: f32,
}
#[derive(Debug, Clone, Copy)]
pub struct Ellipse {
pub center: Point,
pub radii: Vector,
pub rotation: f32,
pub start_angle: f32,
pub end_angle: f32,
}
impl From<Arc> for Ellipse {
fn from(arc: Arc) -> Ellipse {
Ellipse {
center: arc.center,
radii: Vector::new(arc.radius, arc.radius),
rotation: 0.0,
start_angle: arc.start_angle,
end_angle: arc.end_angle,
}
}
}
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