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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QMULTIMEDIAUTILS_P_H
#define QMULTIMEDIAUTILS_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtMultimedia/qtmultimediaglobal.h>
#include <QtCore/private/qglobal_p.h>
#include <qstring.h>
#include <utility>
#include <optional>
QT_BEGIN_NAMESPACE
template<typename Value>
class QMaybe
{
public:
QMaybe(const Value &v) : m_value(v) { }
QMaybe(Value &&v) : m_value(std::move(v)) { }
QMaybe(QString error) : m_error(std::move(error)) { }
constexpr explicit operator bool() const { return bool(m_value); }
constexpr Value &value() { return *m_value; }
constexpr const Value &value() const { return *m_value; }
constexpr const QString &error() const { return m_error; }
private:
std::optional<Value> m_value;
const QString m_error;
};
template<typename Value>
class QMaybe<Value *>
{
public:
QMaybe(Value *v) : m_value(v) { }
QMaybe(QString error) : m_error(std::move(error)) { }
constexpr explicit operator bool() const { return bool(m_value); }
constexpr Value *value() { return m_value; }
constexpr const Value *value() const { return m_value; }
constexpr const QString &error() const { return m_error; }
private:
Value *m_value = nullptr;
const QString m_error;
};
struct Fraction {
int numerator;
int denominator;
};
Q_MULTIMEDIA_EXPORT Fraction qRealToFraction(qreal value);
QT_END_NAMESPACE
#endif // QMULTIMEDIAUTILS_P_H
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