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Michael Pyne authored
So the PlaylistBox stuff exists in a sort of unusual class structure: * PlaylistCollection, a plain class just holding playlist info * PlaylistCollection::ActionHandler, used for non-GUI stuff that still needs signals/slots (i.e. action handling) * PlaylistBox, the actual GUI class with full-blown QWidgets and the rest. This sort of makes sense (it's an early instance of the approach Qt would take with Model/View in Qt4) but it was even confusing me again. So I've tried to rename to make the roles more clear, removed "using namespace" stuff that muddies the picture up more and did some minor other cleanups while I was here.
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