48 lines
1.5 KiB
Rust
48 lines
1.5 KiB
Rust
use bezier_rs::subpath::{ManipulatorGroup, Subpath, ToSVGOptions};
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use glam::DVec2;
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use wasm_bindgen::prelude::*;
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use crate::svg_drawing::*;
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/// Wrapper of the `Subpath` struct to be used in JS.
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#[wasm_bindgen]
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pub struct WasmSubpath(Subpath);
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#[wasm_bindgen]
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impl WasmSubpath {
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/// Expects js_points to be an unbounded list of triples, where each item is a tuple of floats.
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pub fn from_triples(js_points: &JsValue, closed: bool) -> WasmSubpath {
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let point_triples: Vec<[Option<DVec2>; 3]> = js_points.into_serde().unwrap();
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let manipulator_groups = point_triples
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.into_iter()
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.map(|point_triple| ManipulatorGroup {
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anchor: point_triple[0].unwrap(),
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in_handle: point_triple[1],
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out_handle: point_triple[2],
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})
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.collect();
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WasmSubpath(Subpath::new(manipulator_groups, closed))
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}
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pub fn set_anchor(&mut self, index: usize, x: f64, y: f64) {
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self.0[index].anchor = DVec2::new(x, y);
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}
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pub fn set_in_handle(&mut self, index: usize, x: f64, y: f64) {
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self.0[index].in_handle = Some(DVec2::new(x, y));
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}
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pub fn set_out_handle(&mut self, index: usize, x: f64, y: f64) {
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self.0[index].out_handle = Some(DVec2::new(x, y));
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}
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pub fn to_svg(&self) -> String {
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format!("{}{}{}", SVG_OPEN_TAG, self.0.to_svg(ToSVGOptions::default()), SVG_CLOSE_TAG)
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}
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pub fn length(&self) -> String {
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let length_text = draw_text(format!("Length: {:.2}", self.0.length(None)), 5., 193., BLACK);
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format!("{}{}{}{}", SVG_OPEN_TAG, self.0.to_svg(ToSVGOptions::default()), length_text, SVG_CLOSE_TAG)
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}
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}
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