Add nondestructive vector editing (#1676)

* Initial vector modify node

* Initial extraction of data from monitor nodes

* Migrate to point id

* Start converting to modify node

* Non destructive spline tool (tout le reste est cassé)

* Fix unconnected modify node

* Fix freehand tool

* Pen tool

* Migrate demo art

* Select points

* Fix the demo artwork

* Fix the X and Y inputs for path tool

* G1 continous toggle

* Delete points

* Fix test

* Insert point

* Improve robustness of handles

* Fix GRS shortcuts on path

* Dragging points

* Fix build

* Preserve opposing handle lengths

* Update demo art and snapping

* Fix polygon tool

* Double click end anchor

* Improve dragging

* Fix text shifting

* Select only connected verts

* Colinear alt

* Cleanup

* Fix imports

* Improve pen tool avoiding handle placement

* Improve disolve

* Remove pivot widget from Transform node properties

* Fix demo art

* Fix bugs

* Re-save demo artwork

* Code review

* Serialize hashmap as tuple vec to enable deserialize_inputs

* Fix migrate

* Add document upgrade function to editor_api.rs

* Finalize document upgrading

* Rename to the Path node

* Remove smoothing from Freehand tool

* Upgrade demo artwork

* Propertly disable raw-rs tests

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>
Co-authored-by: Adam <adamgerhant@gmail.com>
Co-authored-by: Dennis Kobert <dennis@kobert.dev>

libraries/bezier-rs/src/bezier/mod.rs

@@ -48,6 +48,14 @@ impl BezierHandles {
 		matches!(self, Self::Cubic { .. })
 	}
 
+	pub fn is_finite(&self) -> bool {
+		match self {
+			BezierHandles::Linear => true,
+			BezierHandles::Quadratic { handle } => handle.is_finite(),
+			BezierHandles::Cubic { handle_start, handle_end } => handle_start.is_finite() && handle_end.is_finite(),
+		}
+	}
+
 	/// Get the coordinates of the bezier segment's first handle point. This represents the only handle in a quadratic segment.
 	pub fn start(&self) -> Option<DVec2> {
 		match *self {
@@ -64,6 +72,18 @@ impl BezierHandles {
 		}
 	}
 
+	pub fn move_start(&mut self, delta: DVec2) {
+		if let BezierHandles::Cubic { handle_start, .. } | BezierHandles::Quadratic { handle: handle_start } = self {
+			*handle_start += delta
+		}
+	}
+
+	pub fn move_end(&mut self, delta: DVec2) {
+		if let BezierHandles::Cubic { handle_end, .. } = self {
+			*handle_end += delta
+		}
+	}
+
 	/// Returns a Bezier curve that results from applying the transformation function to each handle point in the Bezier.
 	#[must_use]
 	pub fn apply_transformation(&self, transformation_function: impl Fn(DVec2) -> DVec2) -> Self {
@@ -80,6 +100,17 @@ impl BezierHandles {
 			}
 		}
 	}
+
+	#[must_use]
+	pub fn flipped(self) -> Self {
+		match self {
+			BezierHandles::Cubic { handle_start, handle_end } => Self::Cubic {
+				handle_start: handle_end,
+				handle_end: handle_start,
+			},
+			_ => self,
+		}
+	}
 }
 
 #[cfg(feature = "dyn-any")]