connect(transitionList, SIGNAL(activated(int)), this, SLOT(slotTransitionChanged()));
connect(transitionTrack, SIGNAL(activated(int)), this, SLOT(slotTransitionTrackChanged()));
connect(transitionList, SIGNAL(activated(int)), this, SLOT(slotTransitionChanged()));
connect(transitionTrack, SIGNAL(activated(int)), this, SLOT(slotTransitionTrackChanged()));