Massively reorganize and clean up the whole Rust codebase (#478)

* Massively reorganize and clean up the whole Rust codebase

* Additional changes during code review

editor/src/document/document_message.rs

@@ -0,0 +1,88 @@
+use super::layer_panel::LayerMetadata;
+use super::utility_types::{AlignAggregate, AlignAxis, FlipAxis};
+use crate::message_prelude::*;
+
+use graphene::layers::blend_mode::BlendMode;
+use graphene::layers::style::ViewMode;
+use graphene::LayerId;
+use graphene::Operation as DocumentOperation;
+
+use serde::{Deserialize, Serialize};
+
+#[remain::sorted]
+#[impl_message(Message, PortfolioMessage, Document)]
+#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
+pub enum DocumentMessage {
+	AbortTransaction,
+	AddSelectedLayers(Vec<Vec<LayerId>>),
+	AlignSelectedLayers(AlignAxis, AlignAggregate),
+	#[child]
+	Artboard(ArtboardMessage),
+	CommitTransaction,
+	CreateEmptyFolder(Vec<LayerId>),
+	DebugPrintDocument,
+	DeleteLayer(Vec<LayerId>),
+	DeleteSelectedLayers,
+	DeselectAllLayers,
+	DirtyRenderDocument,
+	DirtyRenderDocumentInOutlineView,
+	DispatchOperation(Box<DocumentOperation>),
+	DocumentHistoryBackward,
+	DocumentHistoryForward,
+	DocumentStructureChanged,
+	DuplicateSelectedLayers,
+	ExportDocument,
+	FlipSelectedLayers(FlipAxis),
+	FolderChanged(Vec<LayerId>),
+	GroupSelectedLayers,
+	LayerChanged(Vec<LayerId>),
+	#[child]
+	Movement(MovementMessage),
+	MoveSelectedLayersTo {
+		path: Vec<LayerId>,
+		insert_index: isize,
+	},
+	NudgeSelectedLayers(f64, f64),
+	#[child]
+	Overlays(OverlaysMessage),
+	Redo,
+	RenameLayer(Vec<LayerId>, String),
+	RenderDocument,
+	ReorderSelectedLayers(i32), // relative_position,
+	RollbackTransaction,
+	SaveDocument,
+	SelectAllLayers,
+	SelectionChanged,
+	SelectLayer(Vec<LayerId>, bool, bool),
+	SetBlendModeForSelectedLayers(BlendMode),
+	SetLayerExpansion(Vec<LayerId>, bool),
+	SetOpacityForSelectedLayers(f64),
+	SetSelectedLayers(Vec<Vec<LayerId>>),
+	SetSnapping(bool),
+	SetViewMode(ViewMode),
+	StartTransaction,
+	ToggleLayerExpansion(Vec<LayerId>),
+	ToggleLayerVisibility(Vec<LayerId>),
+	#[child]
+	TransformLayers(TransformLayerMessage),
+	Undo,
+	UngroupLayers(Vec<LayerId>),
+	UngroupSelectedLayers,
+	UpdateLayerMetadata {
+		layer_path: Vec<LayerId>,
+		layer_metadata: LayerMetadata,
+	},
+	ZoomCanvasToFitAll,
+}
+
+impl From<DocumentOperation> for DocumentMessage {
+	fn from(operation: DocumentOperation) -> DocumentMessage {
+		DocumentMessage::DispatchOperation(Box::new(operation))
+	}
+}
+
+impl From<DocumentOperation> for Message {
+	fn from(operation: DocumentOperation) -> Message {
+		DocumentMessage::DispatchOperation(Box::new(operation)).into()
+	}
+}