Index: sources/gui/GuiView.h
===================================================================
diff -u -r64d87d540594252e8039ab2595016d98f1e3cc28 -ra3030123e885fb9f22dea5839c4e988896a257e4
--- sources/gui/GuiView.h	(.../GuiView.h)	(revision 64d87d540594252e8039ab2595016d98f1e3cc28)
+++ sources/gui/GuiView.h	(.../GuiView.h)	(revision a3030123e885fb9f22dea5839c4e988896a257e4)
@@ -45,6 +45,9 @@
     // has been tested manually
     PROPERTY(bool, sdIsReady   , false)
     PROPERTY(bool, sdIsReadOnly, false)
+
+    // this property will be set if the sd-card space gets lower than required amount in percent that has been defined in DriveWatcher.
+    PROPERTY(qint8, sdTooLowPecent, -1) // -1 means the event never happened
     // coco end
 
 public:
@@ -56,18 +59,18 @@
 private slots:
     void  onActionReceive (GuiActionType vAction, const QVariantList &vData); // UI <= HD/DG
 
-    void  doUSBDriveMount ();
-    void  doUSBDriveRemove();
+    void  onUSBDriveMount ();
+    void  onUSBDriveRemove();
 
-    void  doExport        ();
+    void  onExport        ();
 
+    void  onSDCardStateChange(bool vIsReady, bool vIsReadOnly);
+    void  onSDCardSpaceTooLow(quint8 vAvailablePercent);
+
 public slots: // is public since will be used in the UI and is in the same thread.
     void  doActionTransmit(GuiActionType vAction, const QVariantList &vData); // UI => HD/DG
     void  doActionTransmit(GuiActionType vAction, const QVariant     &vData); // UI => HD/DG
     void  doUSBDriveUmount();
-
-    void  doSDCardStateChange(bool vIsReady, bool vIsReadOnly);
-
     void  doExportLog     ();
 
 signals: