2 Copyright (C) 2017 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
25 #include "content_part.h"
26 #include "dcp_content.h"
27 #include "dcpomatic_time_coalesce.h"
29 #include <boost/foreach.hpp>
34 using boost::shared_ptr;
35 using boost::dynamic_pointer_cast;
36 using boost::function;
38 Empty::Empty (list<shared_ptr<Piece> > pieces, DCPTime length, function<bool (shared_ptr<Piece>)> part)
40 list<DCPTimePeriod> full;
41 BOOST_FOREACH (shared_ptr<Piece> i, pieces) {
43 full.push_back (DCPTimePeriod (i->content->position(), i->content->end()));
47 _periods = subtract (DCPTimePeriod(DCPTime(), length), coalesce(full));
49 if (!_periods.empty ()) {
50 _position = _periods.front().from;
55 Empty::set_position (DCPTime position)
59 BOOST_FOREACH (DCPTimePeriod i, _periods) {
60 if (i.contains(_position)) {
65 BOOST_FOREACH (DCPTimePeriod i, _periods) {
66 if (i.from > _position) {
74 Empty::period_at_position () const
76 BOOST_FOREACH (DCPTimePeriod i, _periods) {
77 if (i.contains(_position)) {
78 return DCPTimePeriod (_position, i.to);
82 DCPOMATIC_ASSERT (false);
89 BOOST_FOREACH (DCPTimePeriod i, _periods) {
90 latest = max (latest, i.to);
93 return _position >= latest;