Made a start with the notification system. However need to figure out

how i want to handle multithreading and screen updates.

pglab/NotificationService.h

@@ -0,0 +1,64 @@
+#ifndef NOTIFICATIONSERVICE_H
+#define NOTIFICATIONSERVICE_H
+
+#include <QObject>
+#include <QString>
+#include <QVector>
+#include <memory>
+#include <shared_mutex>
+
+enum NotificationSeverity {
+	Informational, ///< Use for notifications of succesful completion and other things the user likely does not need to be bothered with
+	Warning, ///<
+	Error, ///< Use for failures like not being able to save the users data
+	Critical ///< Don't think you should ever need this in a correct program....
+};
+
+class Notification: public QObject {
+	Q_OBJECT
+public:
+	Notification(int64_t id, NotificationSeverity severity, const QString &msg, const QString &detail = {});
+
+	int64_t id() const { return m_id; }
+	NotificationSeverity severity() const { return m_severity; }
+	QString shortMessage() const { return m_shortMessage; }
+	QString detailMessage() const { return m_detailMessage; }
+
+private:
+	int64_t m_id;
+	NotificationSeverity m_severity;
+	QString m_shortMessage;
+	QString m_detailMessage;
+
+};
+
+class NotificationService {
+public:
+	static std::shared_ptr<NotificationService> instance();
+
+	NotificationService();
+
+	void addInformational(const QString &msg, const QString &detail = {});
+	void addWarning(const QString &msg, const QString &detail = {});
+	void addError(const QString &msg, const QString &detail = {});
+	void add(NotificationSeverity severity, const QString &msg, const QString &detail = {});
+
+	/// Returns the number of notifications
+	int count() const;
+	const Notification& notification(int index);
+
+signals:
+	void onNewNotification(const Notification &notification);
+private:
+	static std::shared_ptr<NotificationService>	s_instance;
+
+	using NotificationContainer = QVector<Notification>;
+
+	std::shared_mutex m_nofiticationsMutex;
+	NotificationContainer m_notifications;
+};
+
+Q_DECLARE_METATYPE(NotificationSeverity)
+Q_DECLARE_METATYPE(Notification)
+
+#endif // NOTIFICATIONSERVICE_H