}
}
+ for (SourceList::const_iterator i = _master_sources.begin(); i != _master_sources.end(); ++i) {
+ if (*i == source) {
+ return true;
+ }
+
+ boost::shared_ptr<PlaylistSource> ps = boost::dynamic_pointer_cast<PlaylistSource> (*i);
+
+ if (ps) {
+ if (ps->playlist()->uses_source (source)) {
+ return true;
+ }
+ }
+ }
+
return false;
}