Files
pilotclient/src/blackmisc/pqstring.h
2014-12-13 01:41:59 +00:00

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2.9 KiB
C++

/* Copyright (C) 2013
* swift project Community / Contributors
*
* This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
* directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
* including this file, may be copied, modified, propagated, or distributed except according to the terms
* contained in the LICENSE file.
*/
//! \file
#ifndef BLACKMISC_PQSTRING_H
#define BLACKMISC_PQSTRING_H
#include "blackmisc/valueobject.h"
#include "blackmisc/blackmiscfreefunctions.h"
#include "blackmisc/variant.h"
namespace BlackMisc
{
namespace PhysicalQuantities
{
/*!
* \brief Represents a physical quantity by a string
* \details Used to parse strings into physical quantities, validate strings
* \sa BlackMisc::PhysicalQuantity
*/
class CPqString : public CValueObjectStdTuple<CPqString>
{
protected:
//! \copydoc CValueObject::convertToQString
virtual QString convertToQString(bool i18n = false) const override;
public:
//! Number separators / group separators
enum SeparatorMode
{
SeparatorsCLocale, //!< 100,000.00
SeparatorsLocale, //!< depending on QLocale, e.g. 100.000,00 in Germany
SeparatorsBestGuess //!< try to figure out
};
//! Group and digit separator
enum SeparatorIndex
{
Group,
Digit
};
//! Default constructor
CPqString() = default;
//! Constructor, for values such as 10km/h
CPqString(const QString &value) : m_string(value) {}
//! Parse a string value like "100m", "10.3Mhz"
static CVariant parseToVariant(const QString &value, SeparatorMode mode = SeparatorsCLocale);
//! Parse into concrete type
template <class PQ> static PQ parse(const QString &value, SeparatorMode mode = SeparatorsCLocale)
{
PQ invalid;
invalid.setNull();
if (value.isEmpty()) return invalid;
CVariant qv = parseToVariant(value, mode);
if (!qv.isNull() && qv.canConvert<PQ>())
{
return qv.value<PQ>();
}
return invalid;
}
//! Locale aware parsing
static double parseNumber(const QString &number, bool &success, SeparatorMode mode = SeparatorsCLocale);
private:
BLACK_ENABLE_TUPLE_CONVERSION(CPqString)
QString m_string;
};
}
}
BLACK_DECLARE_TUPLE_CONVERSION(BlackMisc::PhysicalQuantities::CPqString, (o.m_string))
Q_DECLARE_METATYPE(BlackMisc::PhysicalQuantities::CPqString)
#endif // guard