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/*
Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @return Pieces of content type C that overlap a specified time range in the given ContentList */
template<class C>
std::list<boost::shared_ptr<C> >
overlaps (ContentList cl, DCPTime from, DCPTime to)
{
std::list<boost::shared_ptr<C> > overlaps;
DCPTimePeriod period (from, to);
for (typename ContentList::const_iterator i = cl.begin(); i != cl.end(); ++i) {
boost::shared_ptr<C> c = boost::dynamic_pointer_cast<C> (*i);
if (!c) {
continue;
}
if (DCPTimePeriod(c->position(), c->end()).overlaps (period)) {
overlaps.push_back (c);
}
}
return overlaps;
}
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