97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
//! \~english Unit value class
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//! \~russian Класс значения единицы
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/*
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PIP - Platform Independent Primitives
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Unit value
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PIUNITS_VALUE_H
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#define PIUNITS_VALUE_H
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#include "piunits_base.h"
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namespace PIUnits {
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//! \~english Unit value representation
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//! \~russian Представление значения единицы
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class PIP_EXPORT Value {
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public:
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//! \~english Constructor
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//! \~russian Конструктор
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//! \param v Value
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//! \param t Unit type
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Value(double v = 0., int t = Class::Invalid);
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//! \~english Check if value is valid
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//! \~russian Проверить значение на корректность
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//! \return true if valid
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bool isValid() const { return m_type >= 0 && m_class; }
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//! \~english Check if value is not valid
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//! \~russian Проверить значение на некорректность
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//! \return true if not valid
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bool isNotValid() const { return m_type < 0 || !m_class; }
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//! \~english Get raw value
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//! \~russian Получить сырое значение
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double value() const { return m_value; }
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//! \~english Convert to string
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//! \~russian Преобразовать в строку
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//! \param format Format specifier
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//! \param prec Precision
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//! \return String representation
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PIString toString(char format = 'g', int prec = 5) const;
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//! \~english Convert to different unit type
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//! \~russian Преобразовать в другой тип единицы
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//! \param type_to Target unit type
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//! \return true if successful
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bool convert(int type_to);
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//! \~english Get converted value
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//! \~russian Получить преобразованное значение
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//! \param type_to Target unit type
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//! \return Converted value
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Value converted(int type_to);
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private:
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//! \~english Numeric value
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//! \~russian Числовое значение
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double m_value;
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//! \~english Unit type
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//! \~russian Тип единицы
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int m_type;
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//! \~english Class pointer
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//! \~russian Указатель на класс
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Class::Internal::ClassBase * m_class;
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};
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}; // namespace PIUnits
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//! \~english Output stream operator
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//! \~russian Оператор вывода в поток
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inline PICout operator<<(PICout s, const PIUnits::Value & v) {
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s << v.toString();
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return s;
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}
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#endif
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