Have just returned from a stay in Salzburg. Unfortunately Austria still largely follows the German tradition and there's a lot of smoke everywhere. However a number of restaurants have declared themselves non-smoking - it seemed to be indicated by a sticker near the door of a green cigarette (this is far from clear to me - I would have read it the other way round). Also many restaurants will have a no-smoking section (Nichtraucher). Most bars and cafes were very much smoking - didn't really find any non-smoking bars and cafes, not even the smart Konditorei, where the smoke damages all the fine goods they have to sell.