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Refactor bezier-rs' to_svg functionality (#758)

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* Change Bezier to_svg to include handles and endpoints

* Move params into brackets of format macro, remove unused comment

* Use write macro instead of format

* Fix path for watched directory

* Refactor functions to remove ToSVGOptions
This commit is contained in:
Hannah Li
2022-09-01 23:13:39 -04:00
committed by GitHub
parent 131f24300a
commit 0a1665b87d
9 changed files with 388 additions and 347 deletions
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libraries/bezier-rs/src/bezier/core.rs
+39 -8
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@@ -1,4 +1,5 @@
use super::*;
use std::fmt::Write;
/// Functionality relating to core `Bezier` operations, such as constructors and `abs_diff_eq`.
impl Bezier {
@@ -142,14 +143,44 @@ impl Bezier {
}
}
/// Convert `Bezier` to SVG `path`.
pub fn to_svg(&self) -> String {
format!(
r#"<path d="{SVG_ARG_MOVE}{} {} {}" stroke="black" fill="none"/>"#,
self.start.x,
self.start.y,
self.svg_curve_argument()
)
/// Appends to the `svg` mutable string with an SVG shape representation of the curve.
pub fn curve_to_svg(&self, svg: &mut String, attributes: String) {
let _ = write!(svg, r#"<path d="{SVG_ARG_MOVE}{} {} {}" {}/>"#, self.start.x, self.start.y, self.svg_curve_argument(), attributes);
}
/// Appends to the `svg` mutable string with an SVG shape representation of the handle lines.
pub fn handle_lines_to_svg(&self, svg: &mut String, attributes: String) {
let _ = write!(svg, r#"<path d="{}" {}/>"#, self.svg_handle_line_argument().unwrap_or_else(|| "".to_string()), attributes);
}
/// Appends to the `svg` mutable string with an SVG shape representation of the anchors.
pub fn anchors_to_svg(&self, svg: &mut String, attributes: String) {
let _ = write!(
svg,
r#"<circle cx="{}" cy="{}" {attributes}/><circle cx="{}" cy="{}" {attributes}/>"#,
self.start.x, self.start.y, self.end.x, self.end.y
);
}
/// Appends to the `svg` mutable string with an SVG shape representation of the handles.
pub fn handles_to_svg(&self, svg: &mut String, attributes: String) {
if let BezierHandles::Quadratic { handle } = self.handles {
let _ = write!(svg, r#"<circle cx="{}" cy="{}" {attributes}/>"#, handle.x, handle.y);
} else if let BezierHandles::Cubic { handle_start, handle_end } = self.handles {
let _ = write!(
svg,
r#"<circle cx="{}" cy="{}" {attributes}/><circle cx="{}" cy="{}" {attributes}/>"#,
handle_start.x, handle_start.y, handle_end.x, handle_end.y
);
};
}
/// Appends to the `svg` mutable string with an SVG shape representation that includes the curve, the handle lines, the anchors, and the handles.
pub fn to_svg(&self, svg: &mut String, curve_attributes: String, anchor_attributes: String, handle_attributes: String, handle_line_attributes: String) {
self.curve_to_svg(svg, curve_attributes);
self.handle_lines_to_svg(svg, handle_line_attributes);
self.anchors_to_svg(svg, anchor_attributes);
self.handles_to_svg(svg, handle_attributes);
}
/// Returns true if the corresponding points of the two `Bezier`s are within the provided absolute value difference from each other.