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/*
Copyright (C) 2018-2020 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCPOMATIC_SPL_H
#define DCPOMATIC_SPL_H
#include "spl_entry.h"
#include <dcp/util.h>
#include <nlohmann/json.hpp>
#include <boost/signals2.hpp>
#include <algorithm>
class ContentStore;
/** @class SPL
*
* @brief A "show playlist": what a projection system might play for an entire cinema "show".
*
* For example, it might contain some adverts, some trailers and a feature.
* Each SPL has unique ID, a name, and some SPLEntry objects.
*/
class SPL
{
public:
SPL()
: _id(dcp::make_uuid())
{}
explicit SPL(std::string name)
: _id(dcp::make_uuid())
, _name(name)
{}
void add(SPLEntry e) {
_spl.push_back(e);
}
void remove(std::size_t index) {
_spl.erase(_spl.begin() + index);
}
void insert(SPLEntry entry, boost::optional<std::string> before_id);
std::vector<SPLEntry> const& get() const {
return _spl;
}
SPLEntry const& operator[](std::size_t index) const {
return _spl[index];
}
void swap(size_t a, size_t b) {
std::iter_swap(_spl.begin() + a, _spl.begin() + b);
}
void read(boost::filesystem::path path, ContentStore* store);
void write(boost::filesystem::path path) const;
std::string id() const {
return _id;
}
std::string name() const {
return _name;
}
void set_name(std::string name) {
_name = name;
}
/** @return true if any content was missing when read() was last called on this SPL */
bool missing() const {
return _missing;
}
nlohmann::json as_json_without_content() const;
nlohmann::json as_json_with_content() const;
private:
std::string _id;
std::string _name;
std::vector<SPLEntry> _spl;
/** true if any content was missing when read() was last called on this SPL */
bool _missing = false;
};
/** @class SignalSPL
*
* @brief A wrapper around SPL that signals changes.
*/
class SignalSPL : public SPL
{
public:
enum class Change {
NAME,
CONTENT,
};
SignalSPL() = default;
explicit SignalSPL(std::string name)
: SPL(name)
{}
void set_name(std::string name) {
SPL::set_name (name);
Changed(Change::NAME);
}
void add(SPLEntry e) {
SPL::add(e);
Changed(Change::CONTENT);
}
void remove(std::size_t index) {
SPL::remove(index);
Changed(Change::CONTENT);
}
void insert(SPLEntry e, boost::optional<std::string> before_id) {
SPL::insert(e, before_id);
Changed(Change::CONTENT);
}
void swap(size_t a, size_t b) {
SPL::swap(a, b);
Changed(Change::CONTENT);
}
boost::signals2::signal<void (Change)> Changed;
};
#endif
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