+ QtUi();
+ ~QtUi();
+
+ MessageModel *createMessageModel(QObject *parent) override;
+ AbstractMessageProcessor *createMessageProcessor(QObject *parent) override;
+
+ inline static QtUi *instance();
+ inline static QtUiStyle *style();
+ inline static MainWin *mainWindow();
+
+ static bool haveSystemTray();
+
+ /* Notifications */
+
+ static void registerNotificationBackend(AbstractNotificationBackend *);
+ static void unregisterNotificationBackend(AbstractNotificationBackend *);
+ static void unregisterAllNotificationBackends();
+ static const QList<AbstractNotificationBackend *> ¬ificationBackends();
+ static const QList<AbstractNotificationBackend::Notification> &activeNotifications();
+
+ /**
+ * Determine available fallback icon themes.
+ *
+ * @returns The list of supported fallback themes (Breeze (Dark), Oxygen) that are available on the system
+ */
+ std::vector<std::pair<QString, QString>> availableIconThemes() const;
+
+ /**
+ * Determine the system icon theme set when Quassel was started.
+ *
+ * This property stores the icon theme initially configured in Qt when starting up (may be empty on platforms
+ * not supporting system icon themes). If the --icontheme option is given, uses that.
+ *
+ * Since Qt does not support notifications on theme changes, this property will not be updated when the theme
+ * changes at runtime.
+ *
+ * @returns The system icon theme at startup time
+ */
+ QString systemIconTheme() const;