Index: sources/gui/guicontroller.h
===================================================================
diff -u -re1605219ac2baf49ef21d0889f845ac53d59c3c1 -r56d00a82669a7a2c00ab90109a89dbec8db27527
--- sources/gui/guicontroller.h	(.../guicontroller.h)	(revision e1605219ac2baf49ef21d0889f845ac53d59c3c1)
+++ sources/gui/guicontroller.h	(.../guicontroller.h)	(revision 56d00a82669a7a2c00ab90109a89dbec8db27527)
@@ -30,13 +30,25 @@
 {
     Q_OBJECT
 
+    QThread *_thread = nullptr;
+    bool     _init   = false;
+
+// singleton
 SINGLETON(GuiController)
-public:
-    void init();
 
+public slots:
+    bool init();
+    bool init(QThread &vThread);
+
+private slots:
+    void quit();
+
 private:
     void initConnections();
 
+    void initThread(QThread &vThread);
+    void quitThread();
+
     bool    handleTransmit(GuiActionType vAction, const QVariantList &vData);
 
 public slots: