[librsvg/librsvg-2.52: 7/21] Revert "Path::from_cairo() - New function to convert a librsvg path to a Cairo path"

[Federico Mena Quintero <federico src gnome org>]

commit 9f05d56f7db35257fa6818d6d1eff4fb4385ef1b
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Mar 4 21:31:48 2022 -0600

    Revert "Path::from_cairo() - New function to convert a librsvg path to a Cairo path"
    
    This reverts commit 27e89f84262f95e6ea074bfbf0e56e5b2ffb2e7e.
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/672>

 src/drawing_ctx.rs | 64 ------------------------------------------------------
 1 file changed, 64 deletions(-)
---
diff --git a/src/drawing_ctx.rs b/src/drawing_ctx.rs
index b9550057b..1b05b22af 100644
--- a/src/drawing_ctx.rs
+++ b/src/drawing_ctx.rs
@@ -2184,36 +2184,6 @@ impl Path {
 
         cr.status().map_err(|e| e.into())
     }
-
-    /// Converts a `cairo::Path` to a librsvg `Path`.
-    fn from_cairo(cairo_path: cairo::Path) -> Path {
-        let mut builder = PathBuilder::default();
-
-        // First, see if the path is a single MoveTo(0, 0).  Cairo does this when the code that
-        // generated the path didn't include any commands, due to the way it appends a MoveTo to
-        // some paths.
-        //
-        // Only do the conversion if the path is not empty; otherwise
-        // really return a librsvg path with no commands.
-
-        if !cairo_path
-            .iter()
-            .eq([cairo::PathSegment::MoveTo((0.0, 0.0))])
-        {
-            for segment in cairo_path.iter() {
-                match segment {
-                    cairo::PathSegment::MoveTo((x, y)) => builder.move_to(x, y),
-                    cairo::PathSegment::LineTo((x, y)) => builder.line_to(x, y),
-                    cairo::PathSegment::CurveTo((x2, y2), (x3, y3), (x4, y4)) => {
-                        builder.curve_to(x2, y2, x3, y3, x4, y4)
-                    }
-                    cairo::PathSegment::ClosePath => builder.close_path(),
-                }
-            }
-        }
-
-        builder.into_path()
-    }
 }
 
 impl PathCommand {
@@ -2262,37 +2232,3 @@ impl CubicBezierCurve {
         cr.curve_to(pt1.0, pt1.1, pt2.0, pt2.1, to.0, to.1);
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn rsvg_path_from_cairo_path() {
-        let surface = cairo::ImageSurface::create(cairo::Format::ARgb32, 10, 10).unwrap();
-        let cr = cairo::Context::new(&surface).unwrap();
-
-        cr.move_to(1.0, 2.0);
-        cr.line_to(3.0, 4.0);
-        cr.curve_to(5.0, 6.0, 7.0, 8.0, 9.0, 10.0);
-        cr.close_path();
-
-        let cairo_path = cr.copy_path().unwrap();
-        let path = Path::from_cairo(cairo_path);
-
-        assert_eq!(
-            path.iter().collect::<Vec<PathCommand>>(),
-            vec![
-                PathCommand::MoveTo(1.0, 2.0),
-                PathCommand::LineTo(3.0, 4.0),
-                PathCommand::CurveTo(CubicBezierCurve {
-                    pt1: (5.0, 6.0),
-                    pt2: (7.0, 8.0),
-                    to: (9.0, 10.0),
-                }),
-                PathCommand::ClosePath,
-                PathCommand::MoveTo(1.0, 2.0), // cairo inserts a MoveTo after ClosePath
-            ],
-        );
-    }
-}