2 Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef DCPOMATIC_CONTENT_H
21 #define DCPOMATIC_CONTENT_H
24 #include <boost/filesystem.hpp>
25 #include <boost/signals2.hpp>
26 #include <boost/thread/mutex.hpp>
27 #include <boost/enable_shared_from_this.hpp>
28 #include <libxml++/libxml++.h>
41 static int const START;
42 static int const LENGTH;
45 class Content : public boost::enable_shared_from_this<Content>
48 Content (boost::shared_ptr<const Film>, Time);
49 Content (boost::shared_ptr<const Film>, boost::filesystem::path);
50 Content (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
51 Content (Content const &);
52 virtual ~Content () {}
54 virtual void examine (boost::shared_ptr<Job>);
55 virtual std::string summary () const = 0;
56 virtual std::string information () const = 0;
57 virtual void as_xml (xmlpp::Node *) const;
58 virtual boost::shared_ptr<Content> clone () const = 0;
59 virtual Time length () const = 0;
61 boost::filesystem::path file () const {
62 boost::mutex::scoped_lock lm (_mutex);
66 /** @return MD5 digest of the content's file */
67 std::string digest () const {
68 boost::mutex::scoped_lock lm (_mutex);
72 void set_start (Time);
75 boost::mutex::scoped_lock lm (_mutex);
80 return start() + length();
83 void set_change_signals_frequent (bool f) {
84 _change_signals_frequent = f;
87 boost::signals2::signal<void (boost::weak_ptr<Content>, int, bool)> Changed;
90 void signal_changed (int);
92 boost::weak_ptr<const Film> _film;
93 mutable boost::mutex _mutex;
96 boost::filesystem::path _file;
99 bool _change_signals_frequent;