48 lines
2.0 KiB
Rust
48 lines
2.0 KiB
Rust
use glam::DVec2;
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use vector_types::subpath::{ManipulatorGroup, Subpath};
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use vector_types::vector::PointId;
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pub fn convert_usvg_path(path: &usvg::Path) -> Vec<Subpath<PointId>> {
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let mut subpaths = Vec::new();
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let mut manipulators_list = Vec::new();
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let mut points = path.data().points().iter();
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let to_vec = |p: &usvg::tiny_skia_path::Point| DVec2::new(p.x as f64, p.y as f64);
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for verb in path.data().verbs() {
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match verb {
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usvg::tiny_skia_path::PathVerb::Move => {
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subpaths.push(Subpath::new(std::mem::take(&mut manipulators_list), false));
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let Some(start) = points.next().map(to_vec) else { continue };
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manipulators_list.push(ManipulatorGroup::new(start, Some(start), Some(start)));
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}
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usvg::tiny_skia_path::PathVerb::Line => {
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let Some(end) = points.next().map(to_vec) else { continue };
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manipulators_list.push(ManipulatorGroup::new(end, Some(end), Some(end)));
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}
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usvg::tiny_skia_path::PathVerb::Quad => {
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let Some(handle) = points.next().map(to_vec) else { continue };
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let Some(end) = points.next().map(to_vec) else { continue };
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if let Some(last) = manipulators_list.last_mut() {
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last.out_handle = Some(last.anchor + (2. / 3.) * (handle - last.anchor));
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}
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manipulators_list.push(ManipulatorGroup::new(end, Some(end + (2. / 3.) * (handle - end)), Some(end)));
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}
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usvg::tiny_skia_path::PathVerb::Cubic => {
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let Some(first_handle) = points.next().map(to_vec) else { continue };
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let Some(second_handle) = points.next().map(to_vec) else { continue };
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let Some(end) = points.next().map(to_vec) else { continue };
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if let Some(last) = manipulators_list.last_mut() {
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last.out_handle = Some(first_handle);
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}
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manipulators_list.push(ManipulatorGroup::new(end, Some(second_handle), Some(end)));
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}
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usvg::tiny_skia_path::PathVerb::Close => {
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subpaths.push(Subpath::new(std::mem::take(&mut manipulators_list), true));
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}
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}
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}
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subpaths.push(Subpath::new(manipulators_list, false));
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subpaths
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}
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