Fix 'Shallow Select' mode behavior for selection context transference (#2604)

* Fix ancestor always returning None during shallow select

* Fixes

* fix shift remove on both

* cleanup

* one more cleanup

* final(?) fix

* some cleanup

* more stuff

* make shallow the default

* fixes

* fix

* fix

* fix

* Code review

---------

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

Author: mTvare6

editor/src/messages/portfolio/document/overlays/utility_types.rs

@@ -310,13 +310,10 @@ impl OverlayContext {
 	}
 
 	pub fn draw_angle(&mut self, pivot: DVec2, radius: f64, arc_radius: f64, offset_angle: f64, angle: f64) {
-		let color_line = COLOR_OVERLAY_BLUE;
-
 		let end_point1 = pivot + radius * DVec2::from_angle(angle + offset_angle);
 		let end_point2 = pivot + radius * DVec2::from_angle(offset_angle);
-		self.line(pivot, end_point1, Some(color_line), None);
-		self.line(pivot, end_point2, Some(color_line), None);
-
+		self.line(pivot, end_point1, None, None);
+		self.dashed_line(pivot, end_point2, None, None, Some(2.), Some(2.), Some(0.5));
 		self.draw_arc(pivot, arc_radius, offset_angle, (angle) % TAU + offset_angle);
 	}
 

editor/src/messages/portfolio/document/utility_types/document_metadata.rs

@@ -261,11 +261,21 @@ impl LayerNodeIdentifier {
 		metadata.get_relations(self).and_then(|relations| relations.last_child)
 	}
 
-	/// Does the layer have children? If so, then it is a folder
+	/// Does the layer have children? If so, then it is a folder.
 	pub fn has_children(self, metadata: &DocumentMetadata) -> bool {
 		self.first_child(metadata).is_some()
 	}
 
+	/// Is the layer a child of the given layer?
+	pub fn is_child_of(self, metadata: &DocumentMetadata, parent: &LayerNodeIdentifier) -> bool {
+		parent.children(metadata).any(|child| child == self)
+	}
+
+	/// Is the layer an ancestor of the given layer?
+	pub fn is_ancestor_of(self, metadata: &DocumentMetadata, child: &LayerNodeIdentifier) -> bool {
+		child.ancestors(metadata).any(|ancestor| ancestor == self)
+	}
+
 	/// Iterator over all direct children (excluding self and recursive children)
 	pub fn children(self, metadata: &DocumentMetadata) -> AxisIter {
 		AxisIter {

editor/src/messages/tool/common_functionality/measure.rs

@@ -10,6 +10,7 @@ fn draw_dashed_line(line_start: DVec2, line_end: DVec2, transform: DAffine2, ove
 
 	overlay_context.dashed_line(min_viewport, max_viewport, None, None, Some(2.), Some(2.), Some(0.5));
 }
+
 /// Draws a solid line with a length annotation between two points transformed by the given affine transformations.
 fn draw_line_with_length(line_start: DVec2, line_end: DVec2, transform: DAffine2, document_to_viewport: DAffine2, overlay_context: &mut OverlayContext, label_alignment: LabelAlignment) {
 	let transform_to_document = document_to_viewport.inverse() * transform;

editor/src/messages/tool/tool_messages/artboard_tool.rs

@@ -267,7 +267,7 @@ impl Fsm for ArtboardToolFsmState {
 				let constrain_square = input.keyboard.get(constrain_axis_or_aspect as usize);
 				tool_data.resize_artboard(responses, document, input, from_center, constrain_square);
 
-				// AutoPanning
+				// Auto-panning
 				let messages = [
 					ArtboardToolMessage::PointerOutsideViewport { constrain_axis_or_aspect, center }.into(),
 					ArtboardToolMessage::PointerMove { constrain_axis_or_aspect, center }.into(),
@@ -306,7 +306,7 @@ impl Fsm for ArtboardToolFsmState {
 					bounds.bounds[0] = position.round();
 					bounds.bounds[1] = position.round() + size.round();
 
-					// AutoPanning
+					// Auto-panning
 					let messages = [
 						ArtboardToolMessage::PointerOutsideViewport { constrain_axis_or_aspect, center }.into(),
 						ArtboardToolMessage::PointerMove { constrain_axis_or_aspect, center }.into(),
@@ -345,7 +345,7 @@ impl Fsm for ArtboardToolFsmState {
 					})
 				}
 
-				// AutoPanning
+				// Auto-panning
 				let messages = [
 					ArtboardToolMessage::PointerOutsideViewport { constrain_axis_or_aspect, center }.into(),
 					ArtboardToolMessage::PointerMove { constrain_axis_or_aspect, center }.into(),
@@ -377,25 +377,25 @@ impl Fsm for ArtboardToolFsmState {
 				ArtboardToolFsmState::Ready { hovered }
 			}
 			(ArtboardToolFsmState::ResizingBounds, ArtboardToolMessage::PointerOutsideViewport { .. }) => {
-				// AutoPanning
+				// Auto-panning
 				let _ = tool_data.auto_panning.shift_viewport(input, responses);
 
 				ArtboardToolFsmState::ResizingBounds
 			}
 			(ArtboardToolFsmState::Dragging, ArtboardToolMessage::PointerOutsideViewport { .. }) => {
-				// AutoPanning
+				// Auto-panning
 				tool_data.auto_panning.shift_viewport(input, responses);
 
 				ArtboardToolFsmState::Dragging
 			}
 			(ArtboardToolFsmState::Drawing, ArtboardToolMessage::PointerOutsideViewport { .. }) => {
-				// AutoPanning
+				// Auto-panning
 				tool_data.auto_panning.shift_viewport(input, responses);
 
 				ArtboardToolFsmState::Drawing
 			}
 			(state, ArtboardToolMessage::PointerOutsideViewport { constrain_axis_or_aspect, center }) => {
-				// AutoPanning
+				// Auto-panning
 				let messages = [
 					ArtboardToolMessage::PointerOutsideViewport { constrain_axis_or_aspect, center }.into(),
 					ArtboardToolMessage::PointerMove { constrain_axis_or_aspect, center }.into(),