[ox/mc] Fix more Clang issues

deps/glutils/include/glutils/glutils.hpp

@@ -111,7 +111,7 @@ extern template struct GLObject<deleteProgram>;
 extern template struct GLObject<deleteShader>;
 
 using GLBuffer = GLObject<deleteBuffer>;
-using GLFrameBuffer = GLObject<deleteBuffer>;
+using GLFrameBuffer = GLObject<deleteFrameBuffer>;
 using GLRenderBuffer = GLObject<deleteRenderBuffer>;
 using GLShader = GLObject<deleteShader>;
 using GLProgram = GLObject<deleteProgram>;

deps/ox/src/ox/fs/filesystem/filelocation.cpp

@@ -45,9 +45,14 @@ FileAddress &FileAddress::operator=(const FileAddress &other) noexcept {
 	switch (m_type) {
 		case FileAddressType::Path:
 		{
+			if (other.m_data.path) {
 				auto strSize = ox_strlen(other.m_data.path) + 1;
 				m_data.path = new char[strSize];
 				ox_memcpy(m_data.path, other.m_data.path, strSize);
+			} else {
+				m_data.constPath = "";
+				m_type = FileAddressType::ConstPath;
+			}
 			break;
 		}
 		case FileAddressType::ConstPath:

deps/ox/src/ox/model/modelhandleradaptor.hpp

@@ -47,7 +47,11 @@ class ModelHandlerInterface {
 
 		template<std::size_t len>
 		constexpr Error fieldCString(const char *name, const char val[len]) noexcept requires(opType_v != OpType::Read) {
+			if constexpr(opType_v != OpType::Read) {
 				return m_handler->fieldCString(name, &val[0], len);
+			} else {
+				return {};
+			}
 		}
 
 		constexpr Error fieldCString(const char *name, char **val) noexcept {
@@ -55,11 +59,21 @@ class ModelHandlerInterface {
 		}
 
 		constexpr Error fieldCString(const char *name, const char *const*val) noexcept requires(opType_v != OpType::Read) {
+			// this check looks pointless, but it's to address a Clang bug
+			if constexpr(opType_v != OpType::Read) {
 				return m_handler->fieldCString(name, val);
+			} else {
+				return {};
+			}
 		}
 
 		constexpr Error fieldCString(const char *name, const char **val) noexcept requires(opType_v != OpType::Read) {
+			// this check looks pointless, but it's to address a Clang bug
+			if constexpr(opType_v != OpType::Read) {
 				return m_handler->fieldCString(name, val);
+			} else {
+				return {};
+			}
 		}
 
 		constexpr Error fieldCString(const char *name, char **val, std::size_t buffLen) noexcept {
@@ -67,7 +81,12 @@ class ModelHandlerInterface {
 		}
 
 		constexpr Error fieldCString(const char *name, const char **val, std::size_t buffLen) noexcept requires(opType_v != OpType::Read) {
+			// this check looks pointless, but it's to address a Clang bug
+			if constexpr(opType_v != OpType::Read) {
 				return m_handler->fieldCString(name, val, buffLen);
+			} else {
+				return {};
+			}
 		}
 
 		constexpr Error fieldCString(const char *name, char *val, std::size_t buffLen) noexcept {

deps/ox/src/ox/oc/write.cpp

@@ -27,7 +27,7 @@ Error OrganicClawWriter::fieldCString(const char *key, const char *const*val, in
 }
 
 Error OrganicClawWriter::fieldCString(const char *key, const char *const*val) noexcept {
-	return fieldCString(key, const_cast<const char**>(val), {});
+	return fieldCString(key, const_cast<const char**>(val), static_cast<int>(ox_strlen(val)));
 }
 
 Error OrganicClawWriter::field(const char *key, const UUID *uuid) noexcept {

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp

@@ -44,12 +44,13 @@ ox::Error toPngFile(
 TileSheetEditorImGui::TileSheetEditorImGui(turbine::Context &ctx, ox::CRStringView path):
 		Editor(path),
 		m_ctx(ctx),
-	m_tileSheetEditor(m_ctx, path, *undoStack()) {
+		m_view(m_ctx, path, *undoStack()),
+		m_model(m_view.model()) {
 	oxIgnoreError(setPaletteSelection());
 	// connect signal/slots
 	undoStack()->changeTriggered.connect(this, &TileSheetEditorImGui::markUnsavedChanges);
 	m_subsheetEditor.inputSubmitted.connect(this, &TileSheetEditorImGui::updateActiveSubsheet);
-	model()->paletteChanged.connect(this, &TileSheetEditorImGui::setPaletteSelection);
+	m_model.paletteChanged.connect(this, &TileSheetEditorImGui::setPaletteSelection);
 }
 
 void TileSheetEditorImGui::exportFile() {
@@ -57,15 +58,15 @@ void TileSheetEditorImGui::exportFile() {
 }
 
 void TileSheetEditorImGui::cut() {
-	model()->cut();
+	m_model.cut();
 }
 
 void TileSheetEditorImGui::copy() {
-	model()->copy();
+	m_model.copy();
 }
 
 void TileSheetEditorImGui::paste() {
-	model()->paste();
+	m_model.paste();
 }
 
 void TileSheetEditorImGui::keyStateChanged(turbine::Key key, bool down) {
@@ -75,23 +76,32 @@ void TileSheetEditorImGui::keyStateChanged(turbine::Key key, bool down) {
 	if (key == turbine::Key::Escape) {
 		m_subsheetEditor.close();
 	}
-	auto pal = model()->pal();
+	auto pal = m_model.pal();
 	if (pal) {
 		const auto colorCnt = pal->colors.size();
 		if (key == turbine::Key::Alpha_D) {
 			m_tool = Tool::Draw;
-			model()->clearSelection();
+			setCopyEnabled(false);
+			setCutEnabled(false);
+			setPasteEnabled(false);
+			m_model.clearSelection();
 		} else if (key == turbine::Key::Alpha_S) {
 			m_tool = Tool::Select;
+			setCopyEnabled(true);
+			setCutEnabled(true);
+			setPasteEnabled(true);
 		} else if (key == turbine::Key::Alpha_F) {
 			m_tool = Tool::Fill;
-			model()->clearSelection();
+			setCopyEnabled(false);
+			setCutEnabled(false);
+			setPasteEnabled(false);
+			m_model.clearSelection();
 		} else if (key >= turbine::Key::Num_1 && key <= turbine::Key::Num_9 && key <= turbine::Key::Num_0 + colorCnt) {
 			auto idx = ox::min<std::size_t>(static_cast<uint32_t>(key - turbine::Key::Num_1), colorCnt - 1);
-			m_tileSheetEditor.setPalIdx(idx);
+			m_view.setPalIdx(idx);
 		} else if (key == turbine::Key::Num_0 && colorCnt >= 10) {
 			auto idx = ox::min<std::size_t>(static_cast<uint32_t>(key - turbine::Key::Num_1 + 9), colorCnt - 1);
-			m_tileSheetEditor.setPalIdx(idx);
+			m_view.setPalIdx(idx);
 		}
 	}
 }
@@ -118,12 +128,12 @@ void TileSheetEditorImGui::draw(turbine::Context&) noexcept {
 			ImGui::SameLine();
 			if (ImGui::Selectable("Draw", m_tool == Tool::Draw, 0, btnSz)) {
 				m_tool = Tool::Draw;
-				model()->clearSelection();
+				m_model.clearSelection();
 			}
 			ImGui::SameLine();
 			if (ImGui::Selectable("Fill", m_tool == Tool::Fill, 0, btnSz)) {
 				m_tool = Tool::Fill;
-				model()->clearSelection();
+				m_model.clearSelection();
 			}
 		}
 		ImGui::EndChild();
@@ -139,17 +149,17 @@ void TileSheetEditorImGui::draw(turbine::Context&) noexcept {
 			static constexpr auto btnHeight = 18;
 			const auto btnSize = ImVec2(18, btnHeight);
 			if (ImGui::Button("+", btnSize)) {
-				auto insertOnIdx = model()->activeSubSheetIdx();
-				const auto &parent = *model()->activeSubSheet();
-				model()->addSubsheet(insertOnIdx);
+				auto insertOnIdx = m_model.activeSubSheetIdx();
+				const auto &parent = *m_model.activeSubSheet();
+				m_model.addSubsheet(insertOnIdx);
 				insertOnIdx.emplace_back(parent.subsheets.size() - 1);
-				model()->setActiveSubsheet(insertOnIdx);
+				m_model.setActiveSubsheet(insertOnIdx);
 			}
 			ImGui::SameLine();
 			if (ImGui::Button("-", btnSize)) {
-				const auto &activeSubsheetIdx = model()->activeSubSheetIdx();
+				const auto &activeSubsheetIdx = m_model.activeSubSheetIdx();
 				if (activeSubsheetIdx.size() > 0) {
-					model()->rmSubsheet(activeSubsheetIdx);
+					m_model.rmSubsheet(activeSubsheetIdx);
 				}
 			}
 			ImGui::SameLine();
@@ -167,7 +177,7 @@ void TileSheetEditorImGui::draw(turbine::Context&) noexcept {
 				ImGui::TableSetupColumn("Columns", ImGuiTableColumnFlags_WidthFixed, 50);
 				ImGui::TableSetupColumn("Rows", ImGuiTableColumnFlags_WidthFixed, 50);
 				ImGui::TableHeadersRow();
-				drawSubsheetSelector(&m_tileSheetEditor.img().subsheet, &path);
+				drawSubsheetSelector(&m_view.img().subsheet, &path);
 				ImGui::EndTable();
 			}
 		}
@@ -182,7 +192,7 @@ void TileSheetEditorImGui::drawSubsheetSelector(TileSheet::SubSheet *subsheet, T
 	using Str = ox::BasicString<100>;
 	auto pathStr = ox::join<Str>("##", *path).value;
 	auto lbl = ox::sfmt<Str>("{}##{}", subsheet->name, pathStr);
-	const auto rowSelected = *path == model()->activeSubSheetIdx();
+	const auto rowSelected = *path == m_model.activeSubSheetIdx();
 	const auto flags = ImGuiTreeNodeFlags_SpanFullWidth
 	                 | ImGuiTreeNodeFlags_OpenOnArrow
 	                 | ImGuiTreeNodeFlags_DefaultOpen
@@ -192,7 +202,7 @@ void TileSheetEditorImGui::drawSubsheetSelector(TileSheet::SubSheet *subsheet, T
 	const auto open = ImGui::TreeNodeEx(lbl.c_str(), flags);
 	ImGui::SameLine();
 	if (ImGui::IsItemClicked()) {
-		model()->setActiveSubsheet(*path);
+		m_model.setActiveSubsheet(*path);
 	}
 	if (ImGui::IsMouseDoubleClicked(0) && ImGui::IsItemHovered()) {
 		showSubsheetEditor();
@@ -229,11 +239,11 @@ ox::Vec2 TileSheetEditorImGui::clickPos(ImVec2 const&winPos, ox::Vec2 clickPos)
 }
 
 ox::Error TileSheetEditorImGui::saveItem() noexcept {
-	return model()->saveFile();
+	return m_model.saveFile();
 }
 
 void TileSheetEditorImGui::showSubsheetEditor() noexcept {
-	const auto sheet = model()->activeSubSheet();
+	const auto sheet = m_model.activeSubSheet();
 	if (sheet->subsheets.size()) {
 		m_subsheetEditor.show(sheet->name, -1, -1);
 	} else {
@@ -247,9 +257,9 @@ void TileSheetEditorImGui::exportSubhseetToPng() noexcept {
 		return;
 	}
 	// subsheet to png
-	const auto &img = model()->img();
-	const auto &s = *model()->activeSubSheet();
-	const auto &pal = model()->pal();
+	const auto &img = m_model.img();
+	const auto &s = *m_model.activeSubSheet();
+	const auto &pal = m_model.pal();
 	err = toPngFile(path, s, *pal, img.bpp);
 	if (err) {
 		oxErrorf("Tilesheet export failed: {}", toStr(err));
@@ -261,20 +271,17 @@ void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const&fbSize) noexcept {
 	const auto fbSizei = ox::Size(static_cast<int>(fbSize.x), static_cast<int>(fbSize.y));
 	if (m_framebuffer.width != fbSizei.width || m_framebuffer.height != fbSizei.height) {
 		glutils::resizeInitFrameBuffer(m_framebuffer, fbSizei.width, fbSizei.height);
-		m_tileSheetEditor.resizeView(fbSize);
-	} else if (m_tileSheetEditor.updated()) {
-		m_tileSheetEditor.ackUpdate();
+		m_view.resizeView(fbSize);
+	} else if (m_view.updated()) {
+		m_view.ackUpdate();
 	}
 	glBindFramebuffer(GL_FRAMEBUFFER, m_framebuffer);
 	// clear screen and draw
 	glViewport(0, 0, fbSizei.width, fbSizei.height);
-	m_tileSheetEditor.draw();
+	m_view.draw();
 	glBindFramebuffer(GL_FRAMEBUFFER, 0);
-	ImTextureID buffId{};
-	static_assert(sizeof(ImTextureID) >= sizeof(m_framebuffer.color.id));
-	memcpy(&buffId, &m_framebuffer.color.id, sizeof(m_framebuffer.color.id));
 	ImGui::Image(
-		buffId,
+		std::bit_cast<ImTextureID>(uintptr_t{m_framebuffer.color.id}),
 		static_cast<ImVec2>(fbSize),
 		ImVec2(0, 1),
 		ImVec2(1, 0));
@@ -287,22 +294,22 @@ void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const&fbSize) noexcept {
 		if (wheel != 0) {
 			const auto zoomMod = ox::defines::OS == ox::OS::Darwin ?
 			                     io.KeySuper : turbine::buttonDown(m_ctx, turbine::Key::Mod_Ctrl);
-			m_tileSheetEditor.scrollV(fbSize, wheel, zoomMod);
+			m_view.scrollV(fbSize, wheel, zoomMod);
 		}
 		if (wheelh != 0) {
-			m_tileSheetEditor.scrollH(fbSize, wheelh);
+			m_view.scrollH(fbSize, wheelh);
 		}
 		if (io.MouseDown[0] && m_prevMouseDownPos != mousePos) {
 			m_prevMouseDownPos = mousePos;
 			switch (m_tool) {
 				case Tool::Draw:
-					m_tileSheetEditor.clickDraw(fbSize, clickPos(winPos, mousePos));
+					m_view.clickDraw(fbSize, clickPos(winPos, mousePos));
 					break;
 				case Tool::Fill:
-					m_tileSheetEditor.clickFill(fbSize, clickPos(winPos, mousePos));
+					m_view.clickFill(fbSize, clickPos(winPos, mousePos));
 					break;
 				case Tool::Select:
-					m_tileSheetEditor.clickSelect(fbSize, clickPos(winPos, mousePos));
+					m_view.clickSelect(fbSize, clickPos(winPos, mousePos));
 					break;
 				case Tool::None:
 					break;
@@ -312,22 +319,22 @@ void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const&fbSize) noexcept {
 	if (ImGui::BeginPopupContextItem("TileMenu", ImGuiPopupFlags_MouseButtonRight)) {
 		const auto popupPos = ox::Vec2(ImGui::GetWindowPos());
 		if (ImGui::MenuItem("Insert Tile")) {
-			m_tileSheetEditor.insertTile(fbSize, clickPos(winPos, popupPos));
+			m_view.insertTile(fbSize, clickPos(winPos, popupPos));
 		}
 		if (ImGui::MenuItem("Delete Tile")) {
-			m_tileSheetEditor.deleteTile(fbSize, clickPos(winPos, popupPos));
+			m_view.deleteTile(fbSize, clickPos(winPos, popupPos));
 		}
 		ImGui::EndPopup();
 	}
 	if (io.MouseReleased[0]) {
 		m_prevMouseDownPos = {-1, -1};
-		m_tileSheetEditor.releaseMouseButton();
+		m_view.releaseMouseButton();
 	}
 }
 
 void TileSheetEditorImGui::drawPaletteSelector() noexcept {
-	auto sctx = applicationData<studio::StudioContext>(m_ctx);
-	const auto &files = sctx->project->fileList(core::FileExt_npal);
+	auto &sctx = *applicationData<studio::StudioContext>(m_ctx);
+	const auto &files = sctx.project->fileList(core::FileExt_npal);
 	const auto first = m_selectedPaletteIdx < files.size() ?
 		files[m_selectedPaletteIdx].c_str() : "";
 	if (ImGui::BeginCombo("Palette", first, 0)) {
@@ -335,7 +342,7 @@ void TileSheetEditorImGui::drawPaletteSelector() noexcept {
 			const auto selected = (m_selectedPaletteIdx == n);
 			if (ImGui::Selectable(files[n].c_str(), selected) && m_selectedPaletteIdx != n) {
 				m_selectedPaletteIdx = n;
-				oxLogError(model()->setPalette(files[n]));
+				oxLogError(m_model.setPalette(files[n]));
 			}
 			if (selected) {
 				ImGui::SetItemDefaultFocus();
@@ -349,15 +356,15 @@ void TileSheetEditorImGui::drawPaletteSelector() noexcept {
 		ImGui::TableSetupColumn("", 0, 0.22f);
 		ImGui::TableSetupColumn("Color16", 0, 3);
 		ImGui::TableHeadersRow();
-		if (auto pal = m_tileSheetEditor.pal()) {
+		if (auto pal = m_view.pal()) {
 			for (auto i = 0u; auto c: pal->colors) {
 				ImGui::PushID(static_cast<int>(i));
 				// Column: color idx
 				ImGui::TableNextColumn();
 				const auto label = ox::BString<8>() + (i + 1);
-				const auto rowSelected = i == m_tileSheetEditor.palIdx();
+				const auto rowSelected = i == m_view.palIdx();
 				if (ImGui::Selectable(label.c_str(), rowSelected, ImGuiSelectableFlags_SpanAllColumns)) {
-					m_tileSheetEditor.setPalIdx(i);
+					m_view.setPalIdx(i);
 				}
 				// Column: color RGB
 				ImGui::TableNextColumn();
@@ -375,13 +382,13 @@ void TileSheetEditorImGui::drawPaletteSelector() noexcept {
 }
 
 ox::Error TileSheetEditorImGui::updateActiveSubsheet(ox::StringView const&name, int cols, int rows) noexcept {
-	return model()->updateSubsheet(model()->activeSubSheetIdx(), name, cols, rows);
+	return m_model.updateSubsheet(m_model.activeSubSheetIdx(), name, cols, rows);
 }
 
 ox::Error TileSheetEditorImGui::setPaletteSelection() noexcept {
-	const auto &palPath = model()->palPath();
-	auto sctx = applicationData<studio::StudioContext>(m_ctx);
-	const auto &palList = sctx->project->fileList(core::FileExt_npal);
+	const auto &palPath = m_model.palPath();
+	auto &sctx = *applicationData<studio::StudioContext>(m_ctx);
+	const auto &palList = sctx.project->fileList(core::FileExt_npal);
 	for (std::size_t i = 0; const auto &pal : palList) {
 		if (palPath == pal) {
 			m_selectedPaletteIdx = i;

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.hpp

@@ -47,7 +47,8 @@ class TileSheetEditorImGui: public studio::Editor {
 		ox::Vector<ox::String> m_paletteList;
 		SubSheetEditor m_subsheetEditor;
 		glutils::FrameBuffer m_framebuffer;
-		TileSheetEditorView m_tileSheetEditor;
+		TileSheetEditorView m_view;
+		TileSheetEditorModel &m_model;
 		float m_palViewWidth = 300;
 		ox::Vec2 m_prevMouseDownPos;
 		Tool m_tool = Tool::Draw;
@@ -82,16 +83,6 @@ class TileSheetEditorImGui: public studio::Editor {
 
 		void exportSubhseetToPng() noexcept;
 
-		[[nodiscard]]
-		constexpr auto model() const noexcept {
-			return m_tileSheetEditor.model();
-		}
-
-		[[nodiscard]]
-		constexpr auto model() noexcept {
-			return m_tileSheetEditor.model();
-		}
-
 		void drawTileSheet(ox::Vec2 const&fbSize) noexcept;
 
 		void drawPaletteSelector() noexcept;

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditormodel.hpp

@@ -124,18 +124,6 @@ class TileSheetEditorModel: public ox::SignalHandler {
 	private:
 		void pushCommand(studio::UndoCommand *cmd) noexcept;
 
-		void setPalette();
-
-		void saveState();
-
-		void restoreState();
-
-		[[nodiscard]]
-		ox::String paletteName(ox::String const&palettePath) const;
-
-		[[nodiscard]]
-		ox::String palettePath(ox::String const&palettePath) const;
-
 };
 
 constexpr const TileSheet &TileSheetEditorModel::img() const noexcept {

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditorview.hpp

@@ -84,13 +84,13 @@ class TileSheetEditorView: public ox::SignalHandler {
 		constexpr const Palette *pal() const noexcept;
 
 		[[nodiscard]]
-		constexpr auto *model() noexcept {
-			return &m_model;
+		constexpr auto &model() noexcept {
+			return m_model;
 		}
 
 		[[nodiscard]]
-		constexpr auto *model() const noexcept {
-			return &m_model;
+		constexpr auto &model() const noexcept {
+			return m_model;
 		}
 
 		constexpr auto setPalIdx(auto palIdx) noexcept {

src/olympic/studio/applib/src/main.cpp

@@ -53,7 +53,7 @@ static ox::Error runApp(
 	turbine::setConstantRefresh(*ctx, false);
 	studio::StudioContext studioCtx;
 	turbine::setApplicationData(*ctx, &studioCtx);
-	StudioUI ui(ctx.get(), projectDataDir);
+	StudioUI ui(*ctx, projectDataDir);
 	studioCtx.ui = &ui;
 	StudioUIDrawer drawer(ui);
 	turbine::gl::addDrawer(*ctx, &drawer);

src/olympic/studio/applib/src/studioapp.cpp

@@ -15,7 +15,12 @@
 
 namespace studio {
 
-ox::Vector<const studio::Module*> modules;
+static ox::Vector<const studio::Module*> modules;
+
+void registerModule(studio::Module const*mod) noexcept {
+	modules.emplace_back(mod);
+}
+
 
 struct StudioConfig {
 	static constexpr auto TypeName = "net.drinkingtea.studio.StudioConfig";
@@ -33,25 +38,27 @@ oxModelBegin(StudioConfig)
 	oxModelFieldRename(show_project_explorer, showProjectExplorer)
 oxModelEnd()
 
-StudioUI::StudioUI(turbine::Context *ctx, ox::StringView projectDir) noexcept:
-	m_ctx(*ctx),
-	m_projectDir(projectDir),
+StudioUI::StudioUI(turbine::Context &ctx, ox::StringView projectDataDir) noexcept:
+		m_ctx(ctx),
+		m_projectDataDir(projectDataDir),
 		m_projectExplorer(ox::make_unique<ProjectExplorer>(m_ctx)),
-	m_aboutPopup(*ctx) {
+		m_aboutPopup(m_ctx) {
 	m_projectExplorer->fileChosen.connect(this, &StudioUI::openFile);
 	ImGui::GetIO().IniFilename = nullptr;
 	loadModules();
 	// open project and files
-	const auto [config, err] = studio::readConfig<StudioConfig>(keelCtx(*ctx));
+	auto const [config, err] = studio::readConfig<StudioConfig>(keelCtx(m_ctx));
 	m_showProjectExplorer = config.showProjectExplorer;
 	if (!err) {
-		oxIgnoreError(openProject(config.projectPath));
-		for (const auto &f : config.openFiles) {
+		auto const openProjErr = openProject(config.projectPath);
+		if (!openProjErr) {
+			for (const auto &f: config.openFiles) {
 				auto openFileErr = openFileActiveTab(f, config.activeTabItemName == f);
 				if (openFileErr) {
 					oxErrorf("\nCould not open editor for file:\n\t{}\nReason:\n\t{}\n", f, toStr(openFileErr));
 				}
 			}
+		}
 	} else {
 		if constexpr(!ox::defines::Debug) {
 			oxErrf("Could not open studio config file: {}: {}\n", err.errCode, toStr(err));
@@ -83,7 +90,9 @@ void StudioUI::handleKeyEvent(turbine::Key key, bool down) noexcept {
 				toggleProjectExplorer();
 				break;
 			case turbine::Key::Alpha_C:
+				if (m_activeEditor && m_activeEditor->copyEnabled()) {
 					m_activeEditor->copy();
+				}
 				break;
 			case turbine::Key::Alpha_N:
 				m_newMenu.open();
@@ -98,10 +107,14 @@ void StudioUI::handleKeyEvent(turbine::Key key, bool down) noexcept {
 				save();
 				break;
 			case turbine::Key::Alpha_V:
+				if (m_activeEditor && m_activeEditor->pasteEnabled()) {
 					m_activeEditor->paste();
+				}
 				break;
 			case turbine::Key::Alpha_X:
+				if (m_activeEditor && m_activeEditor->cutEnabled()) {
 					m_activeEditor->cut();
+				}
 				break;
 			case turbine::Key::Alpha_Y:
 				redo();
@@ -169,19 +182,19 @@ void StudioUI::drawMenu() noexcept {
 		if (ImGui::BeginMenu("Edit")) {
 			auto undoStack = m_activeEditor ? m_activeEditor->undoStack() : nullptr;
 			if (ImGui::MenuItem("Undo", "Ctrl+Z", false, undoStack && undoStack->canUndo())) {
-				 m_activeEditor->undoStack()->undo();
+				undoStack->undo();
 			}
 			if (ImGui::MenuItem("Redo", "Ctrl+Y", false, undoStack && undoStack->canRedo())) {
-				 m_activeEditor->undoStack()->redo();
+				undoStack->redo();
 			}
 			ImGui::Separator();
-			if (ImGui::MenuItem("Copy", "Ctrl+C")) {
+			if (ImGui::MenuItem("Copy", "Ctrl+C", false, m_activeEditor && m_activeEditor->copyEnabled())) {
 				m_activeEditor->copy();
 			}
-			if (ImGui::MenuItem("Cut", "Ctrl+X")) {
+			if (ImGui::MenuItem("Cut", "Ctrl+X", false, m_activeEditor && m_activeEditor->cutEnabled())) {
 				m_activeEditor->cut();
 			}
-			if (ImGui::MenuItem("Paste", "Ctrl+V")) {
+			if (ImGui::MenuItem("Paste", "Ctrl+V", false, m_activeEditor && m_activeEditor->pasteEnabled()) && m_activeEditor) {
 				m_activeEditor->paste();
 			}
 			ImGui::EndMenu();
@@ -240,6 +253,9 @@ void StudioUI::drawTabs() noexcept {
 		}
 		if (!open) {
 			e->close();
+			if (m_activeEditor == (*it).get()) {
+				m_activeEditor = nullptr;
+			}
 			try {
 				oxThrowError(m_editors.erase(it).moveTo(&it));
 			} catch (const ox::Exception &ex) {
@@ -305,7 +321,7 @@ ox::Error StudioUI::openProject(ox::CRStringView path) noexcept {
 	oxRequireM(fs, keel::loadRomFs(path));
 	oxReturnError(keel::setRomFs(keelCtx(m_ctx), std::move(fs)));
 	turbine::setWindowTitle(m_ctx, ox::sfmt("{} - {}", keelCtx(m_ctx).appName, path));
-	m_project = ox::make_unique<studio::Project>(keelCtx(m_ctx), ox::String(path), m_projectDir);
+	m_project = ox::make_unique<studio::Project>(keelCtx(m_ctx), ox::String(path), m_projectDataDir);
 	auto sctx = applicationData<studio::StudioContext>(m_ctx);
 	sctx->project = m_project.get();
 	m_project->fileAdded.connect(m_projectExplorer.get(), &ProjectExplorer::refreshProjectTreeModel);
@@ -324,6 +340,9 @@ ox::Error StudioUI::openFile(ox::CRStringView path) noexcept {
 }
 
 ox::Error StudioUI::openFileActiveTab(ox::CRStringView path, bool makeActiveTab) noexcept {
+	if (!m_project) {
+		return OxError(1, "No project open to open a file from");
+	}
 	if (m_openFiles.contains(path)) {
 		for (auto &e : m_editors) {
 			if (makeActiveTab && e->itemPath() == path) {
@@ -332,7 +351,7 @@ ox::Error StudioUI::openFileActiveTab(ox::CRStringView path, bool makeActiveTab)
 				break;
 			}
 		}
-		return OxError(0);
+		return {};
 	}
 	oxRequire(ext, studio::fileExt(path).to<ox::String>([](auto const&v) {return ox::String(v);}));
 	// create Editor
@@ -372,18 +391,14 @@ ox::Error StudioUI::openFileActiveTab(ox::CRStringView path, bool makeActiveTab)
 
 ox::Error StudioUI::closeFile(ox::CRStringView path) noexcept {
 	if (!m_openFiles.contains(path)) {
-		return OxError(0);
+		return {};
 	}
 	oxIgnoreError(m_openFiles.erase(std::remove(m_openFiles.begin(), m_openFiles.end(), path)));
 	// save to config
 	studio::editConfig<StudioConfig>(keelCtx(m_ctx), [&](StudioConfig *config) {
 		oxIgnoreError(config->openFiles.erase(std::remove(config->openFiles.begin(), config->openFiles.end(), path)));
 	});
-	return OxError(0);
-}
-
-void registerModule(const studio::Module *mod) noexcept {
-	modules.emplace_back(mod);
+	return {};
 }
 
 }

src/olympic/studio/applib/src/studioapp.hpp

@@ -24,27 +24,27 @@ class StudioUI: public ox::SignalHandler {
 
 	private:
 		turbine::Context &m_ctx;
-		ox::String m_projectDir;
-		ox::UniquePtr<studio::Project> m_project;
+		ox::String m_projectDataDir;
+		ox::UPtr<studio::Project> m_project;
 		studio::TaskRunner m_taskRunner;
-		ox::Vector<ox::UniquePtr<studio::BaseEditor>> m_editors;
-		ox::Vector<ox::UniquePtr<studio::Widget>> m_widgets;
+		ox::Vector<ox::UPtr<studio::BaseEditor>> m_editors;
+		ox::Vector<ox::UPtr<studio::Widget>> m_widgets;
 		ox::HashMap<ox::String, studio::EditorMaker::Func> m_editorMakers;
-		ox::UniquePtr<ProjectExplorer> m_projectExplorer;
+		ox::UPtr<ProjectExplorer> m_projectExplorer;
 		ox::Vector<ox::String> m_openFiles;
 		studio::BaseEditor *m_activeEditorOnLastDraw = nullptr;
 		studio::BaseEditor *m_activeEditor = nullptr;
 		studio::BaseEditor *m_activeEditorUpdatePending = nullptr;
 		NewMenu m_newMenu;
 		AboutPopup m_aboutPopup;
-		const ox::Array<studio::Popup*, 2> m_popups = {
+		ox::Array<studio::Popup*, 2> const m_popups = {
 			&m_newMenu,
 			&m_aboutPopup
 		};
 		bool m_showProjectExplorer = true;
 
 	public:
-		explicit StudioUI(turbine::Context *ctx, ox::StringView projectDir) noexcept;
+		explicit StudioUI(turbine::Context &ctx, ox::StringView projectDataDir) noexcept;
 
 		void update() noexcept;
 

src/olympic/studio/modlib/include/studio/editor.hpp

@@ -76,17 +76,17 @@ class BaseEditor: public Widget {
 		void setCutEnabled(bool);
 
 		[[nodiscard]]
-		bool cutEnabled() const;
+		bool cutEnabled() const noexcept;
 
 		void setCopyEnabled(bool);
 
 		[[nodiscard]]
-		bool copyEnabled() const;
+		bool copyEnabled() const noexcept;
 
 		void setPasteEnabled(bool);
 
 		[[nodiscard]]
-		bool pasteEnabled() const;
+		bool pasteEnabled() const noexcept;
 
 	protected:
 		/**

src/olympic/studio/modlib/src/editor.cpp

@@ -76,7 +76,7 @@ void BaseEditor::setCutEnabled(bool v) {
 	cutEnabledChanged.emit(v);
 }
 
-bool BaseEditor::cutEnabled() const {
+bool BaseEditor::cutEnabled() const noexcept {
 	return m_cutEnabled;
 }
 
@@ -85,7 +85,7 @@ void BaseEditor::setCopyEnabled(bool v) {
 	copyEnabledChanged.emit(v);
 }
 
-bool BaseEditor::copyEnabled() const {
+bool BaseEditor::copyEnabled() const noexcept {
 	return m_copyEnabled;
 }
 
@@ -94,12 +94,12 @@ void BaseEditor::setPasteEnabled(bool v) {
 	pasteEnabledChanged.emit(v);
 }
 
-bool BaseEditor::pasteEnabled() const {
+bool BaseEditor::pasteEnabled() const noexcept {
 	return m_pasteEnabled;
 }
 
 ox::Error BaseEditor::saveItem() noexcept {
-	return OxError(0);
+	return {};
 }
 
 UndoStack *BaseEditor::undoStack() noexcept {