minor improvements and fixes

Author: 0SlowPoke0

editor/src/messages/tool/tool_message_handler.rs

@@ -76,8 +76,8 @@ impl MessageHandler<ToolMessage, ToolMessageData<'_>> for ToolMessageHandler {
 				self.tool_is_active = true;
 
 				// Send the old and new tools a transition to their FSM Abort states
-				let mut send_abort_to_tool = |tool_type, update_hints_and_cursor: bool| {
-					if let Some(tool) = tool_data.tools.get_mut(&tool_type) {
+				let mut send_abort_to_tool = |old_tool: ToolType, new_tool: ToolType, update_hints_and_cursor: bool| {
+					if let Some(tool) = tool_data.tools.get_mut(&new_tool) {
 						let mut data = ToolActionHandlerData {
 							document,
 							document_id,
@@ -101,9 +101,13 @@ impl MessageHandler<ToolMessage, ToolMessageData<'_>> for ToolMessageHandler {
 							tool.process_message(ToolMessage::UpdateCursor, responses, &mut data);
 						}
 					}
+					if matches!(old_tool, ToolType::Path | ToolType::Select) {
+						responses.add(TransformLayerMessage::CancelTransformOperation);
+					}
 				};
-				send_abort_to_tool(tool_type, true);
-				send_abort_to_tool(old_tool, false);
+
+				send_abort_to_tool(old_tool, tool_type, true);
+				send_abort_to_tool(old_tool, old_tool, false);
 
 				// Unsubscribe old tool from the broadcaster
 				tool_data.tools.get(&tool_type).unwrap().deactivate(responses);

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

@@ -645,19 +645,7 @@ impl Fsm for PathToolFsmState {
 				self
 			}
 			(Self::InsertPoint, PathToolMessage::Escape | PathToolMessage::Delete | PathToolMessage::RightClick) => tool_data.end_insertion(shape_editor, responses, InsertEndKind::Abort),
-			(Self::InsertPoint, PathToolMessage::GRS { key: propagate }) => {
-				// MAYBE: use `InputMapperMessage::KeyDown(..)` instead
-				match propagate {
-					// TODO: Don't use `Key::G` directly, instead take it as a variable from the input mappings list like in all other places
-					Key::KeyG => responses.add(TransformLayerMessage::BeginGrab),
-					// TODO: Don't use `Key::R` directly, instead take it as a variable from the input mappings list like in all other places
-					Key::KeyR => responses.add(TransformLayerMessage::BeginRotate),
-					// TODO: Don't use `Key::S` directly, instead take it as a variable from the input mappings list like in all other places
-					Key::KeyS => responses.add(TransformLayerMessage::BeginScale),
-					_ => warn!("Unexpected GRS key"),
-				}
-				tool_data.end_insertion(shape_editor, responses, InsertEndKind::Abort)
-			}
+			(Self::InsertPoint, PathToolMessage::GRS { key: _ }) => PathToolFsmState::InsertPoint,
 			// Mouse down
 			(
 				_,

editor/src/messages/tool/transform_layer/transform_layer_message_handler.rs

@@ -43,6 +43,7 @@ type TransformData<'a> = (&'a DocumentMessageHandler, &'a InputPreprocessorMessa
 impl MessageHandler<TransformLayerMessage, TransformData<'_>> for TransformLayerMessageHandler {
 	fn process_message(&mut self, message: TransformLayerMessage, responses: &mut VecDeque<Message>, (document, input, tool_data, shape_editor): TransformData) {
 		let using_path_tool = tool_data.active_tool_type == ToolType::Path;
+		let using_select_tool = tool_data.active_tool_type == ToolType::Select;
 
 		// TODO: Add support for transforming layer not in the document network
 		let selected_layers = document
@@ -120,6 +121,17 @@ impl MessageHandler<TransformLayerMessage, TransformData<'_>> for TransformLayer
 				responses.add(NodeGraphMessage::RunDocumentGraph);
 			}
 			TransformLayerMessage::BeginGrab => {
+				if !(using_path_tool || using_select_tool) {
+					return;
+				}
+				let points = shape_editor.selected_points();
+				let selected_points: Vec<&ManipulatorPointId> = points.collect();
+
+				if using_path_tool && selected_points.is_empty() {
+					responses.add(TransformLayerMessage::CancelTransformOperation);
+					return;
+				}
+
 				if let TransformOperation::Grabbing(_) = self.transform_operation {
 					return;
 				}
@@ -136,6 +148,56 @@ impl MessageHandler<TransformLayerMessage, TransformData<'_>> for TransformLayer
 				selected.original_transforms.clear();
 			}
 			TransformLayerMessage::BeginRotate => {
+				if !(using_path_tool || using_select_tool) {
+					return;
+				}
+				let Some(&layer) = selected_layers.first() else {
+					return;
+				};
+				let Some(vector_data) = document.network_interface.compute_modified_vector(layer) else {
+					return;
+				};
+				let points = shape_editor.selected_points();
+				let selected_points: Vec<&ManipulatorPointId> = points.collect();
+
+				if using_path_tool && selected_points.is_empty() {
+					responses.add(TransformLayerMessage::CancelTransformOperation);
+					return;
+				}
+
+				if selected_points.len() == 1 {
+					if let Some(point) = selected_points.first() {
+						match point {
+							ManipulatorPointId::Anchor(_) => {
+								if let Some([handle1, handle2]) = point.get_handle_pair(&vector_data) {
+									if (handle1.get_handle_length(&vector_data) == 0.0 && handle2.get_handle_length(&vector_data) == 0.0)
+										|| (handle1.get_handle_length(&vector_data) == f64::MAX && handle2.get_handle_length(&vector_data) == f64::MAX)
+									{
+										self.transform_operation = TransformOperation::None;
+
+										responses.add(TransformLayerMessage::CancelTransformOperation);
+										return;
+									}
+								}
+							}
+							_ => {
+								let handle_position = point.get_position(&vector_data);
+								let anchor_position = point.get_anchor_position(&vector_data);
+
+								if let (Some(handle_pos), Some(anchor_pos)) = (handle_position, anchor_position) {
+									// Calculate the distance between the handle and anchor
+									let distance = (handle_pos - anchor_pos).length();
+
+									// If the distance is zero, return early
+									if distance == 0.0 {
+										return;
+									}
+								}
+							}
+						}
+					}
+				}
+
 				if let TransformOperation::Rotating(_) = self.transform_operation {
 					return;
 				}
@@ -152,6 +214,39 @@ impl MessageHandler<TransformLayerMessage, TransformData<'_>> for TransformLayer
 				selected.original_transforms.clear();
 			}
 			TransformLayerMessage::BeginScale => {
+				if !(using_path_tool || using_select_tool) {
+					return;
+				}
+				let Some(&layer) = selected_layers.first() else {
+					return;
+				};
+				let Some(vector_data) = document.network_interface.compute_modified_vector(layer) else {
+					return;
+				};
+
+				let points = shape_editor.selected_points();
+				let selected_points: Vec<&ManipulatorPointId> = points.collect();
+
+				if using_path_tool && selected_points.is_empty() {
+					responses.add(TransformLayerMessage::CancelTransformOperation);
+					return;
+				}
+
+				if selected_points.len() == 1 {
+					if let Some(point) = selected_points.first() {
+						if let ManipulatorPointId::Anchor(_) = point {
+							if let Some([handle1, handle2]) = point.get_handle_pair(&vector_data) {
+								if (handle1.get_handle_length(&vector_data) == 0.0 && handle2.get_handle_length(&vector_data) == 0.0)
+									|| (handle1.get_handle_length(&vector_data) == f64::MAX && handle2.get_handle_length(&vector_data) == f64::MAX)
+								{
+									responses.add(TransformLayerMessage::CancelTransformOperation);
+									return;
+								}
+							}
+						}
+					}
+				}
+
 				if let TransformOperation::Scaling(_) = self.transform_operation {
 					return;
 				}

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

@@ -403,6 +403,13 @@ impl HandleId {
 		}
 	}
 
+	pub fn get_handle_length(self, vector_data: &VectorData) -> f64 {
+		let anchor_position = self.to_manipulator_point().get_anchor_position(&vector_data).unwrap();
+		let handle_position = self.to_manipulator_point().get_position(&vector_data);
+		let handle_length = handle_position.map(|pos| (pos - anchor_position).length()).unwrap_or(f64::MAX);
+		handle_length
+	}
+
 	/// Set the handle's position relative to the anchor which is the start anchor for the primary handle and end anchor for the end handle.
 	#[must_use]
 	pub fn set_relative_position(self, relative_position: DVec2) -> VectorModificationType {