Add "Grid" to the Shape tool along with row/column gizmos (#2921)

* integrated grid shape in shape-tool

* add overlays,detection,transform for gizmo

* fix compile issues

* handle negative correctly,fix undo redo and abort

* fix missed merge conflicts

* fixed mouse cursor,correctly translatiing

* cleanup

* fix click-target area inside rect and spacing

* add 10px closer to gizmo line

* resolved conflicts

* Code review

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

node-graph/gcore/src/vector/misc.rs

@@ -60,7 +60,7 @@ impl AsI64 for f64 {
 #[widget(Radio)]
 pub enum GridType {
 	#[default]
-	Rectangular,
+	Rectangular = 0,
 	Isometric,
 }
 
@@ -102,6 +102,10 @@ pub fn dvec2_to_point(value: DVec2) -> Point {
 	Point { x: value.x, y: value.y }
 }
 
+pub fn get_line_endpoints(line: Line) -> (DVec2, DVec2) {
+	(point_to_dvec2(line.p0), point_to_dvec2(line.p1))
+}
+
 pub fn segment_to_handles(segment: &PathSeg) -> BezierHandles {
 	match *segment {
 		PathSeg::Line(_) => BezierHandles::Linear,

node-graph/gcore/src/vector/vector_attributes.rs

@@ -128,7 +128,10 @@ impl PointDomain {
 	}
 
 	pub fn push(&mut self, id: PointId, position: DVec2) {
-		debug_assert!(!self.id.contains(&id));
+		if self.id.contains(&id) {
+			return;
+		}
+
 		self.id.push(id);
 		self.position.push(position);
 	}