2 Copyright (C) 2020 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/>.
22 #ifndef DCPOMATIC_WEAK_FILM_H
23 #define DCPOMATIC_WEAK_FILM_H
26 #include "dcpomatic_assert.h"
33 class WeakFilmTemplate
36 WeakFilmTemplate (std::weak_ptr<T> f)
41 std::weak_ptr<T> _film;
43 std::shared_ptr<T> film () const {
44 std::shared_ptr<T> f = _film.lock();
51 typedef WeakFilmTemplate<const Film> WeakConstFilm;
52 typedef WeakFilmTemplate<Film> WeakFilm;