[studio,nostalgia/gfx] Add system for adding sub-commands in Modules, add export-tilesheet command

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

@@ -23,15 +23,34 @@ struct EditorMaker {
 	Func make;
 };
 
+struct Command {
+	ox::String name;
+	std::function<ox::Error(Project&, ox::SpanView<ox::CString>)> func;
+	Command(
+		ox::StringParam name,
+		std::function<ox::Error(Project&, ox::SpanView<ox::CString>)> func) noexcept:
+		name(std::move(name)),
+		func(std::move(func)) {}
+};
+
 class Module {
 	public:
 		virtual ~Module() noexcept = default;
 
-		virtual ox::Vector<EditorMaker> editors(studio::Context &ctx) const;
+		[[nodiscard]]
+		virtual ox::String id() const noexcept = 0;
 
-		virtual ox::Vector<ox::UPtr<ItemMaker>> itemMakers(studio::Context&) const;
+		[[nodiscard]]
+		virtual ox::Vector<Command> commands() const;
 
-		virtual ox::Vector<ox::UPtr<ItemTemplate>> itemTemplates(studio::Context&) const;
+		[[nodiscard]]
+		virtual ox::Vector<EditorMaker> editors(Context &ctx) const;
+
+		[[nodiscard]]
+		virtual ox::Vector<ox::UPtr<ItemMaker>> itemMakers(Context&) const;
+
+		[[nodiscard]]
+		virtual ox::Vector<ox::UPtr<ItemTemplate>> itemTemplates(Context&) const;
 
 };
 

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

@@ -59,7 +59,7 @@ class Project: public ox::SignalHandler {
 		ox::HashMap<ox::String, ox::Vector<ox::String>> m_fileExtFileMap;
 
 	public:
-		explicit Project(keel::Context &ctx, ox::String path, ox::StringViewCR projectDataDir);
+		explicit Project(keel::Context &ctx, ox::StringParam path, ox::StringViewCR projectDataDir);
 
 		ox::Error create() noexcept;
 
@@ -101,6 +101,16 @@ class Project: public ox::SignalHandler {
 
 		ox::Error deleteItem(ox::StringViewCR path) noexcept;
 
+		[[nodiscard]]
+		keel::Context &kctx() noexcept {
+			return m_kctx;
+		}
+
+		[[nodiscard]]
+		keel::Context const &kctx() const noexcept {
+			return m_kctx;
+		}
+
 		[[nodiscard]]
 		bool exists(ox::StringViewCR path) const noexcept;
 

src/olympic/studio/modlib/src/module.cpp

@@ -6,6 +6,10 @@
 
 namespace studio {
 
+ox::Vector<Command> Module::commands() const {
+	return {};
+}
+
 ox::Vector<EditorMaker> Module::editors(Context&) const {
 	return {};
 }

src/olympic/studio/modlib/src/project.cpp

@@ -54,7 +54,7 @@ static constexpr bool isParentOf(ox::StringViewCR parent, ox::StringViewCR child
 	return beginsWith(sfmt("{}/", child), parent);
 }
 
-Project::Project(keel::Context &ctx, ox::String path, ox::StringViewCR projectDataDir):
+Project::Project(keel::Context &ctx, ox::StringParam path, ox::StringViewCR projectDataDir):
 	m_kctx(ctx),
 	m_path(std::move(path)),
 	m_projectDataDir(projectDataDir),