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/*
Copyright (C) 2013 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.
*/
#ifndef DCPOMATIC_CONTENT_H
#define DCPOMATIC_CONTENT_H
#include <set>
#include <boost/filesystem.hpp>
#include <boost/signals2.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <libxml++/libxml++.h>
#include "types.h"
namespace cxml {
class Node;
}
class Job;
class Film;
class ContentProperty
{
public:
static int const START;
static int const LENGTH;
};
class Content : public boost::enable_shared_from_this<Content>, public boost::noncopyable
{
public:
Content (boost::shared_ptr<const Film>, Time);
Content (boost::shared_ptr<const Film>, boost::filesystem::path);
Content (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
virtual ~Content () {}
virtual void examine (boost::shared_ptr<Job>);
virtual std::string summary () const = 0;
virtual std::string information () const = 0;
virtual void as_xml (xmlpp::Node *) const;
virtual Time length () const = 0;
boost::shared_ptr<Content> clone () const;
boost::filesystem::path file () const {
boost::mutex::scoped_lock lm (_mutex);
return _file;
}
/** @return MD5 digest of the content's file */
std::string digest () const {
boost::mutex::scoped_lock lm (_mutex);
return _digest;
}
void set_start (Time);
Time start () const {
boost::mutex::scoped_lock lm (_mutex);
return _start;
}
Time end () const {
return start() + length();
}
void set_change_signals_frequent (bool f) {
_change_signals_frequent = f;
}
boost::signals2::signal<void (boost::weak_ptr<Content>, int, bool)> Changed;
protected:
void signal_changed (int);
boost::weak_ptr<const Film> _film;
mutable boost::mutex _mutex;
private:
boost::filesystem::path _file;
std::string _digest;
Time _start;
bool _change_signals_frequent;
};
#endif
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