[nostalgia/studio] Start on ImGui version of Studio

src/nostalgia/studio/lib/task.hpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2016 - 2021 gary@drinkingtea.net
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <ox/event/signal.hpp>
+
+#include <nostalgia/core/context.hpp>
+
+namespace nostalgia::studio {
+
+enum class TaskState {
+	Running,
+	Done
+};
+
+class Task: public ox::SignalHandler {
+	public:
+		virtual ~Task() noexcept = default;
+		virtual TaskState update(nostalgia::core::Context *ctx) noexcept = 0;
+};
+
+class TaskRunner {
+	private:
+		ox::Vector<ox::UniquePtr<studio::Task>> m_tasks;
+	public:
+		void update(core::Context *ctx) noexcept;
+		void add(Task *task) noexcept;
+};
+
+}