Make the Pen tool only append new paths when Shift is held (#2102)

* Append to a path with shift

* Fixup transforms

* Revert unnecessary transform change

* Fix delete node button transaction

* Prevent artboard from being selected after making a new document

---------

Co-authored-by: Keavon Chambers <[email protected]>

Author: 0HyperCube

editor/src/messages/dialog/new_document_dialog/new_document_dialog_message_handler.rs

@@ -25,18 +25,18 @@ impl MessageHandler<NewDocumentDialogMessage, ()> for NewDocumentDialogMessageHa
 
 				let create_artboard = !self.infinite && self.dimensions.x > 0 && self.dimensions.y > 0;
 				if create_artboard {
+					responses.add(Message::StartBuffer);
 					responses.add(GraphOperationMessage::NewArtboard {
 						id: NodeId::new(),
 						artboard: graphene_core::Artboard::new(IVec2::ZERO, self.dimensions.as_ivec2()),
 					});
 				}
 
-				responses.add(NodeGraphMessage::RunDocumentGraph);
-				responses.add(NodeGraphMessage::UpdateNewNodeGraph);
-
 				// TODO: Figure out how to get StartBuffer to work here so we can delete this and use `DocumentMessage::ZoomCanvasToFitAll` instead
+				// Currently, it is necessary to use `FrontendMessage::TriggerDelayedZoomCanvasToFitAll` rather than `DocumentMessage::ZoomCanvasToFitAll` because the size of the viewport is not yet populated
 				responses.add(Message::StartBuffer);
 				responses.add(FrontendMessage::TriggerDelayedZoomCanvasToFitAll);
+				responses.add(DocumentMessage::DeselectAllLayers);
 			}
 		}
 

editor/src/messages/input_mapper/input_mappings.rs

@@ -249,7 +249,7 @@ pub fn input_mappings() -> Mapping {
 		//
 		// PenToolMessage
 		entry!(PointerMove; refresh_keys=[Control, Alt, Shift], action_dispatch=PenToolMessage::PointerMove { snap_angle: Shift, break_handle: Alt, lock_angle: Control}),
-		entry!(KeyDown(MouseLeft); action_dispatch=PenToolMessage::DragStart),
+		entry!(KeyDown(MouseLeft); action_dispatch=PenToolMessage::DragStart { append_to_selected: Shift }),
 		entry!(KeyUp(MouseLeft); action_dispatch=PenToolMessage::DragStop),
 		entry!(KeyDown(MouseRight); action_dispatch=PenToolMessage::Confirm),
 		entry!(KeyDown(Escape); action_dispatch=PenToolMessage::Confirm),

editor/src/messages/portfolio/document/document_message_handler.rs

@@ -338,6 +338,7 @@ impl MessageHandler<DocumentMessage, DocumentMessageData<'_>> for DocumentMessag
 				responses.add(NodeGraphMessage::RunDocumentGraph);
 				responses.add(NodeGraphMessage::SelectedNodesUpdated);
 				responses.add(NodeGraphMessage::SendGraph);
+				responses.add(DocumentMessage::EndTransaction);
 			}
 			DocumentMessage::DeleteSelectedLayers => {
 				responses.add(NodeGraphMessage::DeleteSelectedNodes { delete_children: true });
@@ -1279,7 +1280,7 @@ impl MessageHandler<DocumentMessage, DocumentMessageData<'_>> for DocumentMessag
 					layer: node_layer_id,
 					transform: DAffine2::from_translation(bounds_rounded_dimensions / 2.),
 					transform_in: TransformIn::Local,
-					skip_rerender: true,
+					skip_rerender: false,
 				});
 			}
 			DocumentMessage::ZoomCanvasTo100Percent => {
@@ -1297,6 +1298,8 @@ impl MessageHandler<DocumentMessage, DocumentMessageData<'_>> for DocumentMessag
 				if let Some(bounds) = bounds {
 					responses.add(NavigationMessage::CanvasTiltSet { angle_radians: 0. });
 					responses.add(NavigationMessage::FitViewportToBounds { bounds, prevent_zoom_past_100: true });
+				} else {
+					warn!("Cannot zoom due to no bounds")
 				}
 			}
 			DocumentMessage::Noop => (),

editor/src/messages/portfolio/document/navigation/navigation_message_handler.rs

@@ -321,6 +321,7 @@ impl MessageHandler<NavigationMessage, NavigationMessageData<'_>> for Navigation
 				let diagonal = pos2 - pos1;
 
 				if diagonal.length() < f64::EPSILON * 1000. || ipp.viewport_bounds.size() == DVec2::ZERO {
+					warn!("Cannot center since the viewport size is 0");
 					return;
 				}
 

editor/src/messages/portfolio/portfolio_message_handler.rs

@@ -706,6 +706,7 @@ impl MessageHandler<PortfolioMessage, PortfolioMessageData<'_>> for PortfolioMes
 					responses.add(DocumentMessage::WrapContentInArtboard { place_artboard_at_origin: true });
 
 					// TODO: Figure out how to get StartBuffer to work here so we can delete this and use `DocumentMessage::ZoomCanvasToFitAll` instead
+					// Currently, it is necessary to use `FrontendMessage::TriggerDelayedZoomCanvasToFitAll` rather than `DocumentMessage::ZoomCanvasToFitAll` because the size of the viewport is not yet populated
 					responses.add(Message::StartBuffer);
 					responses.add(FrontendMessage::TriggerDelayedZoomCanvasToFitAll);
 				}
@@ -737,6 +738,7 @@ impl MessageHandler<PortfolioMessage, PortfolioMessageData<'_>> for PortfolioMes
 					responses.add(DocumentMessage::WrapContentInArtboard { place_artboard_at_origin: true });
 
 					// TODO: Figure out how to get StartBuffer to work here so we can delete this and use `DocumentMessage::ZoomCanvasToFitAll` instead
+					// Currently, it is necessary to use `FrontendMessage::TriggerDelayedZoomCanvasToFitAll` rather than `DocumentMessage::ZoomCanvasToFitAll` because the size of the viewport is not yet populated
 					responses.add(Message::StartBuffer);
 					responses.add(FrontendMessage::TriggerDelayedZoomCanvasToFitAll);
 				}