Struct tiny_skia_path::PathStroker

pub struct PathStroker {

    radius: f32,
    inv_miter_limit: f32,
    res_scale: f32,
    inv_res_scale: f32,
    inv_res_scale_squared: f32,
    first_normal: Point,
    prev_normal: Point,
    first_unit_normal: Point,
    prev_unit_normal: Point,
    first_pt: Point,
    prev_pt: Point,
    first_outer_pt: Point,
    first_outer_pt_index_in_contour: usize,
    segment_count: i32,
    prev_is_line: bool,
    capper: fn(pivot: Point, normal: Point, stop: Point, other_path: Option<&PathBuilder>, path: &mut PathBuilder),
    joiner: fn(before_unit_normal: Point, pivot: Point, after_unit_normal: Point, radius: f32, inv_miter_limit: f32, prev_is_line: bool, curr_is_line: bool, builders: SwappableBuilders<'_>),
    inner: PathBuilder,
    outer: PathBuilder,
    cusper: PathBuilder,
    stroke_type: StrokeType,
    recursion_depth: i32,
    found_tangents: bool,
    join_completed: bool,
}

A path stroker.

Fields

radius: f32

inv_miter_limit: f32

res_scale: f32

inv_res_scale: f32

inv_res_scale_squared: f32

first_normal: Point

prev_normal: Point

first_unit_normal: Point

prev_unit_normal: Point

first_pt: Point

prev_pt: Point

first_outer_pt: Point

first_outer_pt_index_in_contour: usize

segment_count: i32

prev_is_line: bool

capper: fn(pivot: Point, normal: Point, stop: Point, other_path: Option<&PathBuilder>, path: &mut PathBuilder)

joiner: fn(before_unit_normal: Point, pivot: Point, after_unit_normal: Point, radius: f32, inv_miter_limit: f32, prev_is_line: bool, curr_is_line: bool, builders: SwappableBuilders<'_>)

inner: PathBuilder

outer: PathBuilder

cusper: PathBuilder

stroke_type: StrokeType

recursion_depth: i32

found_tangents: bool

join_completed: bool

Implementations

impl PathStroker

pub fn new() -> Self

Creates a new PathStroker.

pub fn compute_resolution_scale(ts: &Transform) -> f32

Computes a resolution scale.

Resolution scale is the “intended” resolution for the output. Default is 1.0.

Larger values (res > 1) indicate that the result should be more precise, since it will be zoomed up, and small errors will be magnified.

Smaller values (0 < res < 1) indicate that the result can be less precise, since it will be zoomed down, and small errors may be invisible.

pub fn stroke( &mut self, path: &Path, stroke: &Stroke, resolution_scale: f32, ) -> Option<Path>

Stokes the path.

Can be called multiple times to reuse allocated buffers.

resolution_scale can be obtained via compute_resolution_scale.

fn stroke_inner( &mut self, path: &Path, width: NonZeroPositiveF32, miter_limit: f32, line_cap: LineCap, line_join: LineJoin, res_scale: f32, ) -> Option<Path>

fn builders(&mut self) -> SwappableBuilders<'_>

fn move_to_pt(&self) -> Point

fn move_to(&mut self, p: Point)

fn line_to(&mut self, p: Point, iter: Option<&PathSegmentsIter<'_>>)

fn quad_to(&mut self, p1: Point, p2: Point)

fn cubic_to(&mut self, pt1: Point, pt2: Point, pt3: Point)

fn cubic_stroke( &mut self, cubic: &[Point; 4], quad_points: &mut QuadConstruct, ) -> bool

fn cubic_mid_on_line( &self, cubic: &[Point; 4], quad_points: &mut QuadConstruct, ) -> bool

fn cubic_quad_mid( &self, cubic: &[Point; 4], quad_points: &mut QuadConstruct, mid: &mut Point, )

fn cubic_perp_ray( &self, cubic: &[Point; 4], t: NormalizedF32, t_pt: &mut Point, on_pt: &mut Point, tangent: Option<&mut Point>, )

fn set_cubic_end_normal( &mut self, cubic: &[Point; 4], normal_ab: Point, unit_normal_ab: Point, normal_cd: &mut Point, unit_normal_cd: &mut Point, )

fn compare_quad_cubic( &self, cubic: &[Point; 4], quad_points: &mut QuadConstruct, ) -> ResultType

fn cubic_quad_ends(&self, cubic: &[Point; 4], quad_points: &mut QuadConstruct)

fn close(&mut self, is_line: bool)

fn finish_contour(&mut self, close: bool, curr_is_line: bool)

fn pre_join_to( &mut self, p: Point, curr_is_line: bool, normal: &mut Point, unit_normal: &mut Point, ) -> bool

fn post_join_to(&mut self, p: Point, normal: Point, unit_normal: Point)

fn init_quad( &mut self, stroke_type: StrokeType, start: NormalizedF32, end: NormalizedF32, quad_points: &mut QuadConstruct, )

fn quad_stroke( &mut self, quad: &[Point; 3], quad_points: &mut QuadConstruct, ) -> bool

fn compare_quad_quad( &mut self, quad: &[Point; 3], quad_points: &mut QuadConstruct, ) -> ResultType

fn set_ray_points( &self, tp: Point, dxy: &mut Point, on_p: &mut Point, tangent: Option<&mut Point>, )

fn quad_perp_ray( &self, quad: &[Point; 3], t: NormalizedF32, tp: &mut Point, on_p: &mut Point, tangent: Option<&mut Point>, )

fn add_degenerate_line(&mut self, quad_points: &QuadConstruct)

fn stroke_close_enough( &self, stroke: &[Point; 3], ray: &[Point; 2], quad_points: &mut QuadConstruct, ) -> ResultType

fn intersect_ray( &self, intersect_ray_type: IntersectRayType, quad_points: &mut QuadConstruct, ) -> ResultType

fn tangents_meet( &self, cubic: &[Point; 4], quad_points: &mut QuadConstruct, ) -> ResultType

fn finish(&mut self, is_line: bool) -> Option<Path>

fn has_only_move_to(&self) -> bool

fn is_current_contour_empty(&self) -> bool

Trait Implementations

impl Clone for PathStroker

fn clone(&self) -> PathStroker

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for PathStroker

fn default() -> Self

Returns the “default value” for a type.