First recalculate the position and then show, to prevent blinking and moving while showing the notification

Signed-off-by: Emanoil Kotsev <deloptes@gmail.com>

src/daemon/NotificationsService.cpp

@@ -199,9 +199,9 @@ void NotificationsService::NotifyAsync(
     if(mNotificationMap[nId]->isResident() && timeout != 0)
         timeout = 0; // resident takes advantage of persistence)
     mNotificationMap[nId]->setTimeout(timeout);
+
     mNotificationMap[nId]->adjustSize();
     mNotificationMap[nId]->raise();
-    mNotificationMap[nId]->show();
     mNotificationMap[nId]->setActiveWindow();
 
     // make sure we display the new notification above the older one
@@ -217,6 +217,7 @@ void NotificationsService::NotifyAsync(
         mNotificationMap[nId]->move( d->width()-mNotificationMap[nId]->width(),
                         d->height()-mNotificationMap[nId]->height());
     }
+    mNotificationMap[nId]->show();
 
     NotifyAsyncReply(asyncCallId, nId);
 }