[nostalgia] Update release notes

release-notes.md

@@ -1,5 +1,6 @@
 # d2025.06.0
 
+* Add ability to remember recent projects in config
 * PaletteEditor: Add RGB key shortcuts for focusing color channels
 
 # d2025.05.1

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

@@ -36,7 +36,7 @@ OX_MODEL_BEGIN(TileSheetEditorConfig)
 OX_MODEL_END()
 
 static ox::Vector<uint32_t> normalizePixelSizes(
-		ox::Vector<uint8_t> const&inPixels) noexcept {
+		ox::Vector<uint8_t> const &inPixels) noexcept {
 	ox::Vector<uint32_t> outPixels;
 	outPixels.reserve(inPixels.size());
 	outPixels.resize(inPixels.size());
@@ -47,7 +47,7 @@ static ox::Vector<uint32_t> normalizePixelSizes(
 }
 
 static ox::Vector<uint32_t> normalizePixelArrangement(
-		ox::Vector<uint32_t> const&inPixels,
+		ox::Vector<uint32_t> const &inPixels,
 		int const cols,
 		int const scale) {
 	auto const scalePt = ox::Point{scale, scale};
@@ -67,10 +67,10 @@ static ox::Vector<uint32_t> normalizePixelArrangement(
 }
 
 static ox::Error toPngFile(
-		ox::CStringView const&path,
+		ox::CStringViewCR path,
 		ox::Vector<uint32_t> &&pixels,
-		Palette const&pal,
-		size_t page,
+		Palette const &pal,
+		size_t const page,
 		unsigned const width,
 		unsigned const height) noexcept {
 	for (auto &c : pixels) {
@@ -88,7 +88,7 @@ static ox::Error toPngFile(
 }
 
 TileSheetEditorImGui::TileSheetEditorImGui(studio::Context &sctx, ox::StringParam path):
-		Editor(sctx, std::move(path)),
+		Editor{sctx, std::move(path)},
 		m_sctx{sctx},
 		m_tctx{m_sctx.tctx},
 		m_palPicker{"Palette Chooser", keelCtx(sctx), FileExt_npal},
@@ -98,8 +98,11 @@ TileSheetEditorImGui::TileSheetEditorImGui(studio::Context &sctx, ox::StringPara
 	m_subsheetEditor.inputSubmitted.connect(this, &TileSheetEditorImGui::updateActiveSubsheet);
 	m_exportMenu.inputSubmitted.connect(this, &TileSheetEditorImGui::exportSubsheetToPng);
 	// load config
-	auto const&config = studio::readConfig<TileSheetEditorConfig>(
-			keelCtx(m_sctx), itemPath());
+	auto &kctx = keelCtx(m_sctx);
+	auto const ip = itemPath();
+	oxLogError(studio::headerizeConfigFile<TileSheetEditorConfig>(kctx, ip));
+	auto const &config =
+		studio::readConfig<TileSheetEditorConfig>(kctx, ip);
 	if (config.ok()) {
 		m_model.setActiveSubsheet(validateSubSheetIdx(m_model.img(), config.value.activeSubsheet));
 	}
@@ -192,7 +195,7 @@ void TileSheetEditorImGui::draw(studio::Context&) noexcept {
 	if (ig::mainWinHasFocus() && m_tool == TileSheetTool::Select) {
 		if (ImGui::IsKeyDown(ImGuiKey_ModCtrl) && !m_palPathFocused) {
 			if (ImGui::IsKeyPressed(ImGuiKey_A)) {
-				auto const&img = m_model.activeSubSheet();
+				auto const &img = m_model.activeSubSheet();
 				m_model.setSelection({{}, {img.columns * TileWidth - 1, img.rows * TileHeight - 1}});
 			} else if (ImGui::IsKeyPressed(ImGuiKey_G)) {
 				m_model.clearSelection();
@@ -271,14 +274,14 @@ void TileSheetEditorImGui::draw(studio::Context&) noexcept {
 			auto constexpr btnSize = ImVec2{btnHeight, btnHeight};
 			if (ig::PushButton("+", btnSize)) {
 				auto insertOnIdx = m_model.activeSubSheetIdx();
-				auto const&parent = m_model.activeSubSheet();
+				auto const &parent = m_model.activeSubSheet();
 				m_model.addSubsheet(insertOnIdx);
 				insertOnIdx.emplace_back(parent.subsheets.size() - 1);
 				setActiveSubsheet(insertOnIdx);
 			}
 			ImGui::SameLine();
 			if (ig::PushButton("-", btnSize)) {
-				auto const&activeSubsheetIdx = m_model.activeSubSheetIdx();
+				auto const &activeSubsheetIdx = m_model.activeSubSheetIdx();
 				if (!activeSubsheetIdx.empty()) {
 					m_model.rmSubsheet(activeSubsheetIdx);
 				}
@@ -378,7 +381,7 @@ void TileSheetEditorImGui::drawSubsheetSelector(
 }
 
 [[nodiscard]]
-ox::Vec2 TileSheetEditorImGui::clickPos(ImVec2 const&winPos, ox::Vec2 clickPos) noexcept {
+ox::Vec2 TileSheetEditorImGui::clickPos(ImVec2 const &winPos, ox::Vec2 clickPos) noexcept {
 	clickPos.x -= winPos.x + 10;
 	clickPos.y -= winPos.y + 10;
 	return clickPos;
@@ -400,7 +403,7 @@ void TileSheetEditorImGui::navigateTo(ox::StringViewCR arg) noexcept {
 }
 
 void TileSheetEditorImGui::showSubsheetEditor() noexcept {
-	auto const&sheet = m_model.activeSubSheet();
+	auto const &sheet = m_model.activeSubSheet();
 	if (!sheet.subsheets.empty()) {
 		m_subsheetEditor.show(sheet.name, -1, -1);
 	} else {
@@ -411,8 +414,8 @@ void TileSheetEditorImGui::showSubsheetEditor() noexcept {
 ox::Error TileSheetEditorImGui::exportSubsheetToPng(int const scale) const noexcept {
 	OX_REQUIRE(path, studio::saveFile({{"PNG", "png"}}));
 	// subsheet to png
-	auto const&s = m_model.activeSubSheet();
-	auto const&pal = m_model.pal();
+	auto const &s = m_model.activeSubSheet();
+	auto const &pal = m_model.pal();
 	auto const width = s.columns * TileWidth;
 	auto const height = s.rows * TileHeight;
 	auto pixels = normalizePixelSizes(s.pixels);
@@ -430,7 +433,7 @@ ox::Error TileSheetEditorImGui::exportSubsheetToPng(int const scale) const noexc
 	return err;
 }
 
-void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const&fbSize) noexcept {
+void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const &fbSize) noexcept {
 	auto const winPos = ImGui::GetWindowPos();
 	auto const fbSizei = ox::Size{static_cast<int>(fbSize.x), static_cast<int>(fbSize.y)};
 	if (m_framebuffer.width != fbSizei.width || m_framebuffer.height != fbSizei.height) {
@@ -451,7 +454,7 @@ void TileSheetEditorImGui::drawTileSheet(ox::Vec2 const&fbSize) noexcept {
 		{0, 1},
 		{1, 0});
 	// handle input, this must come after drawing
-	auto const&io = ImGui::GetIO();
+	auto const &io = ImGui::GetIO();
 	auto const mousePos = ox::Vec2{ImGui::GetMousePos()};
 	if (ImGui::IsItemHovered()) {
 		auto const wheel = io.MouseWheel;
@@ -556,9 +559,9 @@ void TileSheetEditorImGui::drawPaletteMenu() noexcept {
 		ImGui::TableSetupColumn("Color16", 0, 3);
 		ImGui::TableHeadersRow();
 		{
-			auto const&pal = m_model.pal();
+			auto const &pal = m_model.pal();
 			if (pal.pages.size() > m_model.palettePage()) {
-				for (auto i = 0u; auto const&c: pal.pages[m_model.palettePage()].colors) {
+				for (auto i = 0u; auto const &c: pal.pages[m_model.palettePage()].colors) {
 					ImGui::TableNextRow();
 					ImGui::PushID(static_cast<int>(i));
 					// Column: color idx
@@ -580,7 +583,7 @@ void TileSheetEditorImGui::drawPaletteMenu() noexcept {
 					auto const ic = ImGui::GetColorU32({redf(c), greenf(c), bluef(c), 1});
 					ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, ic);
 					ImGui::TableNextColumn();
-					auto const&name =  i < pal.colorNames.size() ? pal.colorNames[i].c_str() : "";
+					auto const &name =  i < pal.colorNames.size() ? pal.colorNames[i].c_str() : "";
 					ImGui::Text("%s", name);
 					ImGui::TableNextColumn();
 					ImGui::Text("(%02d, %02d, %02d)", red16(c), green16(c), blue16(c));
@@ -594,7 +597,7 @@ void TileSheetEditorImGui::drawPaletteMenu() noexcept {
 }
 
 ox::Error TileSheetEditorImGui::updateActiveSubsheet(
-		ox::StringView const&name, int const cols, int const rows) noexcept {
+		ox::StringViewCR name, int const cols, int const rows) noexcept {
 	return m_model.updateSubsheet(m_model.activeSubSheetIdx(), name, cols, rows);
 }
 

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

@@ -82,7 +82,7 @@ class TileSheetEditorImGui: public studio::Editor {
 		void drawSubsheetSelector(TileSheet::SubSheet&, TileSheet::SubSheetIdx &path);
 
 		[[nodiscard]]
-		static ox::Vec2 clickPos(ImVec2 const&winPos, ox::Vec2 clickPos) noexcept;
+		static ox::Vec2 clickPos(ImVec2 const &winPos, ox::Vec2 clickPos) noexcept;
 
 	protected:
 		ox::Error saveItem() noexcept override;
@@ -94,11 +94,11 @@ class TileSheetEditorImGui: public studio::Editor {
 
 		ox::Error exportSubsheetToPng(int scale) const noexcept;
 
-		void drawTileSheet(ox::Vec2 const&fbSize) noexcept;
+		void drawTileSheet(ox::Vec2 const &fbSize) noexcept;
 
 		void drawPaletteMenu() noexcept;
 
-		ox::Error updateActiveSubsheet(ox::StringView const&name, int cols, int rows) noexcept;
+		ox::Error updateActiveSubsheet(ox::StringViewCR name, int cols, int rows) noexcept;
 
 		void setActiveSubsheet(TileSheet::SubSheetIdx path) noexcept;
 

src/olympic/keel/include/keel/typeconv.hpp

@@ -260,7 +260,7 @@ ox::Result<DstType> convertObjToObj(
 template<typename DstType>
 ox::Result<DstType> convert(Context &ctx, ox::BufferView const&src) noexcept {
 	OX_REQUIRE(out, convert(ctx, src, ox::ModelTypeName_v<DstType>, ox::ModelTypeVersion_v<DstType>));
-	return std::move(wrapCast<DstType>(out));
+	return std::move(wrapCast<DstType>(*out));
 }
 
 template<typename DstType>

src/olympic/studio/applib/src/app.cpp

@@ -71,9 +71,9 @@ static ox::Error run(
 }
 
 ox::Error run(
-		ox::StringView project,
-		ox::StringView appName,
-		ox::StringView projectDataDir,
+		ox::StringView const project,
+		ox::StringView const appName,
+		ox::StringView const projectDataDir,
 		ox::SpanView<ox::CString> args) noexcept {
 	return studio::run(ox::sfmt("{} {}", project, appName), projectDataDir, args);
 }

src/olympic/studio/applib/src/studioui.cpp

@@ -7,6 +7,8 @@
 
 #include <imgui.h>
 
+#include <ox/std/def.hpp>
+
 #include <keel/media.hpp>
 #include <glutils/glutils.hpp>
 #include <turbine/turbine.hpp>
@@ -17,6 +19,8 @@
 #include "font.hpp"
 #include "studioui.hpp"
 
+#include <complex>
+
 #ifdef OX_OS_Darwin
 #define STUDIO_CTRL "Cmd"
 #else
@@ -54,7 +58,7 @@ void registerModule(Module const*mod) noexcept {
 }
 
 
-struct StudioConfig {
+struct StudioConfigV1 {
 	static constexpr auto TypeName = "net.drinkingtea.studio.StudioConfig";
 	static constexpr auto TypeVersion = 1;
 	ox::String projectPath;
@@ -63,13 +67,65 @@ struct StudioConfig {
 	bool showProjectExplorer = true;
 };
 
-OX_MODEL_BEGIN(StudioConfig)
+OX_MODEL_BEGIN(StudioConfigV1)
 	OX_MODEL_FIELD_RENAME(activeTabItemName, active_tab_item_name)
 	OX_MODEL_FIELD_RENAME(projectPath, project_path)
 	OX_MODEL_FIELD_RENAME(openFiles, open_files)
 	OX_MODEL_FIELD_RENAME(showProjectExplorer, show_project_explorer)
 OX_MODEL_END()
 
+
+struct StudioConfigV2 {
+	static constexpr auto TypeName = "net.drinkingtea.studio.StudioConfig";
+	static constexpr auto TypeVersion = 2;
+	struct ProjectConfig {
+		static constexpr auto TypeName = "net.drinkingtea.studio.ProjectConfig";
+		static constexpr auto TypeVersion = 2;
+		ox::String projectPath;
+		ox::String activeTabItemName;
+		ox::Vector<ox::String> openFiles;
+	};
+	ox::Vector<ProjectConfig> projects;
+	bool showProjectExplorer = true;
+
+	[[nodiscard]]
+	constexpr ProjectConfig const *project() const {
+		return projects.empty() ? nullptr : &projects[0];
+	}
+
+	[[nodiscard]]
+	constexpr ProjectConfig *project() {
+		return projects.empty() ? nullptr : &projects[0];
+	}
+};
+
+OX_MODEL_BEGIN(StudioConfigV2::ProjectConfig)
+	OX_MODEL_FIELD_RENAME(activeTabItemName, active_tab_item_name)
+	OX_MODEL_FIELD_RENAME(projectPath, project_path)
+	OX_MODEL_FIELD_RENAME(openFiles, open_files)
+OX_MODEL_END()
+
+OX_MODEL_BEGIN(StudioConfigV2)
+	OX_MODEL_FIELD(projects)
+	OX_MODEL_FIELD_RENAME(showProjectExplorer, show_project_explorer)
+OX_MODEL_END()
+
+static ox::Error convertStudioConfigV1ToStudioConfigV2(
+		keel::Context&,
+		StudioConfigV1 &src,
+		StudioConfigV2 &dst) noexcept {
+	dst.projects.emplace_back(StudioConfigV2::ProjectConfig{
+		.projectPath = std::move(src.projectPath),
+		.activeTabItemName = std::move(src.activeTabItemName),
+		.openFiles = std::move(src.openFiles),
+	});
+	dst.showProjectExplorer = src.showProjectExplorer;
+	return {};
+}
+
+using StudioConfig = StudioConfigV2;
+
+
 StudioUI::StudioUI(turbine::Context &ctx, ox::StringParam projectDataDir) noexcept:
 		m_sctx{*this, ctx},
 		m_tctx{ctx},
@@ -87,6 +143,9 @@ StudioUI::StudioUI(turbine::Context &ctx, ox::StringParam projectDataDir) noexce
 		// and hopefully it will change at some point.
 		io.Fonts->AddFontFromMemoryTTF(const_cast<uint8_t*>(font.data()), static_cast<int>(font.size()), 13, &fontCfg);
 	}
+	auto &kctx = keelCtx(m_tctx);
+	kctx.converters.emplace_back(keel::Converter::make<convertStudioConfigV1ToStudioConfigV2>());
+	oxLogError(headerizeConfigFile<StudioConfigV1>(kctx));
 	turbine::setApplicationData(m_tctx, &m_sctx);
 	turbine::setShutdownHandler(m_tctx, shutdownHandler);
 	m_projectExplorer.fileChosen.connect(this, &StudioUI::openFile);
@@ -102,21 +161,14 @@ StudioUI::StudioUI(turbine::Context &ctx, ox::StringParam projectDataDir) noexce
 	m_newMenu.finished.connect(this, &StudioUI::openFile);
 	m_closeAppConfirm.response.connect(this, &StudioUI::handleCloseAppResponse);
 	m_closeFileConfirm.response.connect(this, &StudioUI::handleCloseFileResponse);
+	m_removeRecentProject.dlg.response.connect(this, &StudioUI::handleRemoveRecentProjectResponse);
 	loadModules();
 	// open project and files
 	auto const [config, err] = studio::readConfig<StudioConfig>(keelCtx(m_tctx));
 	m_showProjectExplorer = config.showProjectExplorer;
 	if (!err) {
-		auto const openProjErr = openProjectPath(config.projectPath);
-		if (!openProjErr) {
-			for (auto const&f: config.openFiles) {
-				auto const openFileErr = openFileActiveTab(f, config.activeTabItemName == f);
-				if (openFileErr) {
-					oxErrorf("\nCould not open editor for file:\n\t{}\nReason:\n\t{}\n", f, toStr(openFileErr));
-					continue;
-				}
-				m_activeEditor = m_editors.back().value->get();
-			}
+		if (auto const pc = config.project()) {
+			oxLogError(openProjectPath(pc->projectPath));
 		}
 	} else {
 		if constexpr(!ox::defines::Debug) {
@@ -142,7 +194,7 @@ void StudioUI::navigateTo(ox::StringParam path, ox::StringParam navArgs) noexcep
 void StudioUI::draw() noexcept {
 	glutils::clearScreen();
 	drawMenu();
-	auto const&viewport = *ImGui::GetMainViewport();
+	auto const &viewport = *ImGui::GetMainViewport();
 	ImGui::SetNextWindowPos(viewport.WorkPos);
 	ImGui::SetNextWindowSize(viewport.WorkSize);
 	ImGui::SetNextWindowViewport(viewport.ID);
@@ -194,6 +246,18 @@ void StudioUI::drawMenu() noexcept {
 			if (ImGui::MenuItem("Open Project...", STUDIO_CTRL "+O")) {
 				m_taskRunner.add(*ox::make<FileDialogManager>(this, &StudioUI::openProjectPath));
 			}
+			if (ImGui::BeginMenu("Recent Projects", m_recentProjects.size() > 1)) {
+				for (size_t i = 1; i < m_recentProjects.size(); ++i) {
+					auto const &p = m_recentProjects[i];
+					if (ImGui::MenuItem(p.c_str())) {
+						if (openProjectPath(p)) {
+							m_removeRecentProject.idx = i;
+							m_removeRecentProject.dlg.open();
+						}
+					}
+				}
+				ImGui::EndMenu();
+			}
 			if (ImGui::MenuItem(
 					"Save",
 					STUDIO_CTRL "+S",
@@ -270,7 +334,7 @@ void StudioUI::drawTabBar() noexcept {
 
 void StudioUI::drawTabs() noexcept {
 	for (auto it = m_editors.begin(); it != m_editors.end();) {
-		auto const&e = *it;
+		auto const &e = *it;
 		auto open = true;
 		auto const unsavedChanges = e->unsavedChanges() ? ImGuiTabItemFlags_UnsavedDocument : 0;
 		auto const selected = m_activeEditorUpdatePending == e.get() ?  ImGuiTabItemFlags_SetSelected : 0;
@@ -279,7 +343,9 @@ void StudioUI::drawTabs() noexcept {
 			if (m_activeEditor != e.get()) [[unlikely]] {
 				m_activeEditor = e.get();
 				studio::editConfig<StudioConfig>(keelCtx(m_tctx), [&](StudioConfig &config) {
-					config.activeTabItemName = m_activeEditor->itemPath();
+					if (auto const pc = config.project()) {
+						pc->activeTabItemName = m_activeEditor->itemPath();
+					}
 				});
 				turbine::setRefreshWithin(m_tctx, 0);
 			} else [[likely]] {
@@ -337,14 +403,14 @@ void StudioUI::drawTabs() noexcept {
 	}
 }
 
-void StudioUI::loadEditorMaker(EditorMaker const&editorMaker) noexcept {
-	for (auto const&ext : editorMaker.fileTypes) {
+void StudioUI::loadEditorMaker(EditorMaker const &editorMaker) noexcept {
+	for (auto const &ext : editorMaker.fileTypes) {
 		m_editorMakers[ext] = editorMaker.make;
 	}
 }
 
-void StudioUI::loadModule(Module const&mod) noexcept {
-	for (auto const&editorMaker : mod.editors(m_sctx)) {
+void StudioUI::loadModule(Module const &mod) noexcept {
+	for (auto const &editorMaker : mod.editors(m_sctx)) {
 		loadEditorMaker(editorMaker);
 	}
 	for (auto &im : mod.itemMakers(m_sctx)) {
@@ -464,14 +530,16 @@ ox::Error StudioUI::renameFile(ox::StringViewCR path) noexcept {
 	return m_renameFile.openPath(path);
 }
 
-ox::Error StudioUI::handleMoveFile(ox::StringViewCR oldPath, ox::StringViewCR newPath, ox::UUID const&) noexcept {
+ox::Error StudioUI::handleMoveFile(ox::StringViewCR oldPath, ox::StringViewCR newPath, ox::UUID const &) noexcept {
 	for (auto &f : m_openFiles) {
 		if (f == oldPath) {
 			f = newPath;
 			editConfig<StudioConfig>(keelCtx(m_sctx), [&](StudioConfig &cfg) {
-				auto p = find(cfg.openFiles.begin(), cfg.openFiles.end(), oldPath);
-				*p = newPath;
-				cfg.activeTabItemName = newPath;
+				if (auto const pc = cfg.project()) {
+					auto p = find(pc->openFiles.begin(), pc->openFiles.end(), oldPath);
+					*p = newPath;
+					pc->activeTabItemName = newPath;
+				}
 			});
 			break;
 		}
@@ -546,8 +614,36 @@ ox::Error StudioUI::openProjectPath(ox::StringParam path) noexcept {
 	m_openFiles.clear();
 	m_editors.clear();
 	studio::editConfig<StudioConfig>(keelCtx(m_tctx), [&](StudioConfig &config) {
-		config.projectPath = ox::String(m_project->projectPath());
-		config.openFiles.clear();
+		auto const pcIt = std::find_if(
+			config.projects.begin(), config.projects.end(),
+			[this](StudioConfig::ProjectConfig const &pc) {
+				return pc.projectPath == m_project->projectPath();
+			});
+		if (pcIt != config.projects.end()) {
+			auto p = std::move(*pcIt);
+			std::ignore = config.projects.erase(pcIt);
+			auto &pc = *config.projects.emplace(0, std::move(p));
+			for (auto const &f: pc.openFiles) {
+				auto const openFileErr = openFileActiveTab(f, pc.activeTabItemName == f);
+				if (openFileErr) {
+					oxErrorf("\nCould not open editor for file:\n\t{}\nReason:\n\t{}\n", f, toStr(openFileErr));
+					continue;
+				}
+				m_activeEditor = m_editors.back().value->get();
+			}
+		} else {
+			config.projects.emplace(0, StudioConfig::ProjectConfig{
+				.projectPath = ox::String{m_project->projectPath()},
+				.activeTabItemName = {},
+				.openFiles = {},
+			});
+		}
+		config.projects.resize(ox::min<size_t>(10, config.projects.size()));
+		m_recentProjects.clear();
+		m_recentProjects.reserve(config.projects.size());
+		for (auto const &p : config.projects) {
+			m_recentProjects.emplace_back(p.projectPath);
+		}
 	});
 	return m_projectExplorer.refreshProjectTreeModel();
 }
@@ -593,8 +689,10 @@ ox::Error StudioUI::openFileActiveTab(ox::StringViewCR path, bool const makeActi
 	}
 	// save to config
 	studio::editConfig<StudioConfig>(keelCtx(m_tctx), [&path](StudioConfig &config) {
-		if (!config.openFiles.contains(path)) {
-			config.openFiles.emplace_back(path);
+		if (auto const pc = config.project()) {
+			if (!pc->openFiles.contains(path)) {
+				pc->openFiles.emplace_back(path);
+			}
 		}
 	});
 	return {};
@@ -618,6 +716,22 @@ ox::Error StudioUI::handleCloseFileResponse(ig::PopupResponse const response) no
 	return {};
 }
 
+ox::Error StudioUI::handleRemoveRecentProjectResponse(ig::PopupResponse const response) noexcept {
+	if (response == ig::PopupResponse::OK) {
+		auto const p = std::move(m_recentProjects[m_removeRecentProject.idx]);
+		studio::editConfig<StudioConfig>(keelCtx(m_tctx), [&p](StudioConfig &config) {
+			std::ignore = config.projects.erase(
+				std::remove_if(
+					config.projects.begin(), config.projects.end(),
+					[&p](StudioConfig::ProjectConfig const &pc) {
+						return pc.projectPath == p;
+					}));
+		});
+		return m_recentProjects.erase(m_removeRecentProject.idx).error;
+	}
+	return {};
+}
+
 ox::Error StudioUI::closeCurrentFile() noexcept {
 	for (auto &e : m_editors) {
 		if (m_activeEditor == e.get()) {
@@ -636,7 +750,9 @@ ox::Error StudioUI::closeFile(ox::StringViewCR path) noexcept {
 	std::ignore = m_openFiles.erase(std::remove(m_openFiles.begin(), m_openFiles.end(), path));
 	// save to config
 	studio::editConfig<StudioConfig>(keelCtx(m_tctx), [&](StudioConfig &config) {
-		std::ignore = config.openFiles.erase(std::remove(config.openFiles.begin(), config.openFiles.end(), path));
+		if (auto const pc = config.project()) {
+			std::ignore = pc->openFiles.erase(std::remove(pc->openFiles.begin(), pc->openFiles.end(), path));
+		}
 	});
 	return {};
 }

src/olympic/studio/applib/src/studioui.hpp

@@ -44,6 +44,7 @@ class StudioUI: public ox::SignalHandler {
 		bool m_closeActiveTab{};
 		ox::Vector<ox::Pair<ox::String>> m_queuedMoves;
 		ox::Vector<ox::Pair<ox::String>> m_queuedDirMoves;
+		ox::Vector<ox::String> m_recentProjects;
 		NewMenu m_newMenu{keelCtx(m_tctx)};
 		AboutPopup m_aboutPopup{m_tctx};
 		DeleteConfirmation m_deleteConfirmation;
@@ -57,7 +58,11 @@ class StudioUI: public ox::SignalHandler {
 		MakeCopyPopup m_copyFilePopup;
 		RenameFile m_renameFile;
 		NewProject m_newProject{m_projectDataDir};
-		ox::Array<Widget*, 10> const m_widgets {
+		struct {
+			ig::QuestionPopup dlg{"Remove From Recents?", "Unable to load project. Remove from recent projects?"};
+			size_t idx{};
+		} m_removeRecentProject;
+		ox::Array<Widget*, 11> const m_widgets {
 			&m_closeFileConfirm,
 			&m_closeAppConfirm,
 			&m_copyFilePopup,
@@ -68,6 +73,7 @@ class StudioUI: public ox::SignalHandler {
 			&m_newDirDialog,
 			&m_renameFile,
 			&m_messagePopup,
+			&m_removeRecentProject.dlg,
 		};
 		bool m_showProjectExplorer = true;
 		struct NavAction {
@@ -100,9 +106,9 @@ class StudioUI: public ox::SignalHandler {
 
 		void drawTabs() noexcept;
 
-		void loadEditorMaker(EditorMaker const&editorMaker) noexcept;
+		void loadEditorMaker(EditorMaker const &editorMaker) noexcept;
 
-		void loadModule(Module const&mod) noexcept;
+		void loadModule(Module const &mod) noexcept;
 
 		void loadModules() noexcept;
 
@@ -124,7 +130,7 @@ class StudioUI: public ox::SignalHandler {
 
 		ox::Error renameFile(ox::StringViewCR path) noexcept;
 
-		ox::Error handleMoveFile(ox::StringViewCR oldPath, ox::StringViewCR newPath, ox::UUID const&id) noexcept;
+		ox::Error handleMoveFile(ox::StringViewCR oldPath, ox::StringViewCR newPath, ox::UUID const &id) noexcept;
 
 		ox::Error handleDeleteDir(ox::StringViewCR path) noexcept;
 
@@ -144,6 +150,8 @@ class StudioUI: public ox::SignalHandler {
 
 		ox::Error handleCloseFileResponse(ig::PopupResponse response) noexcept;
 
+		ox::Error handleRemoveRecentProjectResponse(ig::PopupResponse response) noexcept;
+
 		ox::Error closeCurrentFile() noexcept;
 
 		ox::Error closeFile(ox::StringViewCR path) noexcept;

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

@@ -4,21 +4,21 @@
 
 #pragma once
 
+#include <ox/claw/claw.hpp>
 #include <ox/fs/fs.hpp>
 #include <ox/model/typenamecatcher.hpp>
-#include <ox/oc/oc.hpp>
 #include <ox/std/buffer.hpp>
 #include <ox/std/defines.hpp>
 #include <ox/std/fmt.hpp>
-#include <ox/std/trace.hpp>
 #include <ox/std/string.hpp>
+#include <ox/std/trace.hpp>
 
 #include <keel/context.hpp>
 
 namespace studio {
 
 namespace detail {
-inline ox::String slashesToPct(ox::StringView str) noexcept {
+inline ox::String slashesToPct(ox::StringViewCR str) noexcept {
 	auto out = ox::String{str};
 	for (auto&c: out) {
 		if (c == '/' || c == '\\') {
@@ -30,78 +30,102 @@ inline ox::String slashesToPct(ox::StringView str) noexcept {
 }
 
 [[nodiscard]]
-ox::String configPath(keel::Context const&ctx) noexcept;
+ox::String configPath(keel::Context const&kctx) noexcept;
 
 template<typename T>
-ox::Result<T> readConfig(keel::Context &ctx, ox::StringViewCR name) noexcept {
+ox::Result<T> readConfig(keel::Context &kctx, ox::StringViewCR name) noexcept {
 	oxAssert(name != "", "Config type has no TypeName");
 	auto const path = ox::sfmt("/{}.json", detail::slashesToPct(name));
-	ox::PassThroughFS fs(configPath(ctx));
+	ox::PassThroughFS fs(configPath(kctx));
 	auto const [buff, err] = fs.read(path);
 	if (err) {
 		//oxErrf("Could not read config file: {} - {}\n", path, toStr(err));
 		return err;
 	}
-	return ox::readOC<T>(buff);
+	OX_REQUIRE(id, ox::readClawTypeId(buff));
+	ox::Result<T> out;
+	if (id != ox::ModelTypeId_v<T>) {
+		out = keel::convert<T>(kctx, buff);
+	} else {
+		out = ox::readClaw<T>(buff);
+	}
+	OX_RETURN_ERROR(out);
+	OX_RETURN_ERROR(keel::ensureValid(out.value));
+	return out;
 }
 
 template<typename T>
-ox::Result<T> readConfig(keel::Context &ctx) noexcept {
+ox::Result<T> readConfig(keel::Context &kctx) noexcept {
 	constexpr auto TypeName = ox::requireModelTypeName<T>();
-	return readConfig<T>(ctx, TypeName);
+	return readConfig<T>(kctx, TypeName);
 }
 
 template<typename T>
-ox::Error writeConfig(keel::Context &ctx, ox::StringViewCR name, T const&data) noexcept {
+ox::Error writeConfig(keel::Context &kctx, ox::StringViewCR name, T const&data) noexcept {
 	oxAssert(name != "", "Config type has no TypeName");
 	auto const path = ox::sfmt("/{}.json", detail::slashesToPct(name));
-	ox::PassThroughFS fs(configPath(ctx));
+	ox::PassThroughFS fs(configPath(kctx));
 	if (auto const err = fs.mkdir("/", true)) {
 		//oxErrf("Could not create config directory: {} - {}\n", path, toStr(err));
 		return err;
 	}
-	OX_REQUIRE_M(buff, ox::writeOC(data));
+	OX_REQUIRE_M(buff, ox::writeClaw(data, ox::ClawFormat::Organic));
 	*buff.back().value = '\n';
 	if (auto const err = fs.write(path, buff.data(), buff.size())) {
 		//oxErrf("Could not read config file: {} - {}\n", path, toStr(err));
-		return ox::Error(2, "Could not read config file");
+		return ox::Error{2, "Could not read config file"};
 	}
 	return {};
 }
 
 template<typename T>
-ox::Error writeConfig(keel::Context &ctx, T const&data) noexcept {
+ox::Error writeConfig(keel::Context &kctx, T const&data) noexcept {
 	constexpr auto TypeName = ox::requireModelTypeName<T>();
-	return writeConfig(ctx, TypeName, data);
+	return writeConfig(kctx, TypeName, data);
 }
 
 template<typename T, typename Func>
-void openConfig(keel::Context &ctx, ox::StringViewCR name, Func f) noexcept {
+void openConfig(keel::Context &kctx, ox::StringViewCR name, Func f) noexcept {
 	oxAssert(name != "", "Config type has no TypeName");
-	auto const [c, err] = readConfig<T>(ctx, name);
+	auto const [c, err] = readConfig<T>(kctx, name);
 	oxLogError(err);
 	f(c);
 }
 
 template<typename T, typename Func>
-void openConfig(keel::Context &ctx, Func f) noexcept {
+void openConfig(keel::Context &kctx, Func f) noexcept {
 	constexpr auto TypeName = ox::requireModelTypeName<T>();
-	openConfig<T>(ctx, TypeName, f);
+	openConfig<T>(kctx, TypeName, f);
 }
 
 template<typename T, typename Func>
-void editConfig(keel::Context &ctx, ox::StringViewCR name, Func f) noexcept {
+void editConfig(keel::Context &kctx, ox::StringViewCR name, Func f) noexcept {
 	oxAssert(name !=  "", "Config type has no TypeName");
-	auto [c, err] = readConfig<T>(ctx, name);
+	auto [c, err] = readConfig<T>(kctx, name);
 	oxLogError(err);
 	f(c);
-	oxLogError(writeConfig(ctx, name, c));
+	oxLogError(writeConfig(kctx, name, c));
 }
 
 template<typename T, typename Func>
-void editConfig(keel::Context &ctx, Func f) noexcept {
+void editConfig(keel::Context &kctx, Func f) noexcept {
 	constexpr auto TypeName = ox::requireModelTypeName<T>();
-	editConfig<T>(ctx, TypeName, f);
+	editConfig<T>(kctx, TypeName, f);
+}
+
+/**
+ * Older config files didn't use ClawHeaders, so they can't
+ * use the normal conversion system.
+ * Functions like this shouldn't be necessary moving forward.
+ */
+template<typename T>
+ox::Error headerizeConfigFile(keel::Context &kctx, ox::StringViewCR name = ox::ModelTypeName_v<T>) noexcept {
+	auto const path = ox::sfmt("/{}.json", name);
+	ox::PassThroughFS fs(configPath(kctx));
+	OX_REQUIRE_M(buff, fs.read(path));
+	OX_REQUIRE_M(cv1, ox::readOC<T>(buff));
+	OX_RETURN_ERROR(ox::writeClaw(cv1, ox::ClawFormat::Organic).moveTo(buff));
+	return fs.write(path, buff);
 }
 
 }