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79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/* Copyright (C) 2013 VATSIM Community / contributors
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "blackmisc/pqbase.h"
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#include "blackmisc/mathematics.h"
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using namespace BlackMisc::Math;
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namespace BlackMisc
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{
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namespace PhysicalQuantities
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{
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// -----------------------------------------------------------------------
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// --- Measurement unit --------------------------------------------------
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// -----------------------------------------------------------------------
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/*
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* Equal operator
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*/
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bool CMeasurementUnit::operator ==(const CMeasurementUnit &other) const
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{
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if (this == &other) return true;
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return this->m_name == other.m_name;
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}
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/*
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* Unequal operator
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*/
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bool CMeasurementUnit::operator !=(const CMeasurementUnit &other) const
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{
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return !(other == *this);
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}
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/*
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* Conversion
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*/
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double CMeasurementUnit::convertFrom(double value, const CMeasurementUnit &unit) const
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{
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Q_ASSERT(this->m_converter);
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Q_ASSERT(unit.m_converter);
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if (this->m_converter == unit.m_converter) return value;
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return this->m_converter->fromDefault(unit.m_converter->toDefault(value));
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}
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/*
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* Value to QString with unit, e.g. "5.00m"
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* @return
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*/
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QString CMeasurementUnit::makeRoundedQStringWithUnit(double value, int digits, bool i18n) const
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{
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return this->makeRoundedQString(value, digits).append(this->getSymbol(i18n));
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}
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/*
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* Value rounded
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*/
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double CMeasurementUnit::roundValue(double value, int digits) const
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{
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if (digits < 0) digits = this->m_displayDigits;
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return CMath::round(value, digits);
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}
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/*
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* Rounded to QString
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*/
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QString CMeasurementUnit::makeRoundedQString(double value, int digits, bool /* i18n */) const
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{
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if (digits < 0) digits = this->m_displayDigits;
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double v = CMath::round(value, digits);
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QString s = QLocale::system().toString(v, 'f', digits);
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return s;
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}
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} // namespace
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} // namespace
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