void slotDeleteEffect(ClipItem *clip, int track, QDomElement effect, bool affectGroup = true);
void slotChangeEffectState(ClipItem *clip, int track, int effectPos, bool disable);
void slotChangeEffectPosition(ClipItem *clip, int track, int currentPos, int newPos);
void slotDeleteEffect(ClipItem *clip, int track, QDomElement effect, bool affectGroup = true);
void slotChangeEffectState(ClipItem *clip, int track, int effectPos, bool disable);
void slotChangeEffectPosition(ClipItem *clip, int track, int currentPos, int newPos);