connect(m_item, SIGNAL(changed()), this, SLOT(slotUpdateProperties()));
connect(m_scene, SIGNAL(addKeyframe()), this, SLOT(slotInsertKeyframe()));
connect(m_item, SIGNAL(changed()), this, SLOT(slotUpdateProperties()));
connect(m_scene, SIGNAL(addKeyframe()), this, SLOT(slotInsertKeyframe()));