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- /**
- * @file common/observer/View.hpp
- * @author The ARTIS Development Team
- * See the AUTHORS or Authors.txt file
- */
- /*
- * ARTIS - the multimodeling and simulation environment
- * This file is a part of the ARTIS environment
- *
- * Copyright (C) 2013-2021 ULCO http://www.univ-littoral.fr
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
- #ifndef ARTIS_COMMON_OBSERVER_ITERATOR_HPP
- #define ARTIS_COMMON_OBSERVER_ITERATOR_HPP
- #include <artis-star/common/observer/View.hpp>
- namespace artis {
- namespace observer {
- template<typename Time>
- class Iterator
- {
- public:
- Iterator(const typename View<Time>::Values &view)
- : _view(view), _iterator(view.begin())
- {}
- virtual ~Iterator() = default;
- bool has_next() const
- { return _iterator != _view.end(); }
- virtual void operator++()
- { _iterator++; }
- virtual const std::pair<double, common::Value> &operator*() const
- { return *_iterator; }
- private:
- const typename View<Time>::Values &_view;
- typename View<Time>::Values::const_iterator _iterator;
- };
- template<typename Time>
- class DiscreteTimeIterator : public Iterator<Time>
- {
- public:
- DiscreteTimeIterator(const typename View<Time>::Values &view,
- const typename Time::type &start, const typename Time::type &step)
- : Iterator<Time>(view), _step(step), _time(start)
- {
- _last_value = &Iterator<Time>::operator*();
- while (Iterator<Time>::operator*().first <= start
- and Iterator<Time>::has_next()) {
- Iterator<Time>::operator++();
- if (Iterator<Time>::operator*().first == start) {
- _last_value = &Iterator<Time>::operator*();
- }
- }
- }
- virtual ~DiscreteTimeIterator() = default;
- void operator++() override
- {
- _time += _step;
- _last_value = &Iterator<Time>::operator*();
- while (Iterator<Time>::operator*().first <= _time and Iterator<Time>::has_next()) {
- Iterator<Time>::operator++();
- if (Iterator<Time>::operator*().first == _time) {
- _last_value = &Iterator<Time>::operator*();
- }
- }
- }
- const std::pair<double, common::Value> &operator*() const override
- { return *_last_value; }
- private:
- typename Time::type _step;
- typename Time::type _time;
- const std::pair<double, common::Value> *_last_value;
- };
- }
- }
- #endif
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