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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMEDIATIMERANGE_H
#define QMEDIATIMERANGE_H
#include <QtMultimedia/qtmultimediaglobal.h>
#include <QtCore/qshareddata.h>
QT_BEGIN_NAMESPACE
class QMediaTimeRangePrivate;
QT_DECLARE_QESDP_SPECIALIZATION_DTOR_WITH_EXPORT(QMediaTimeRangePrivate, Q_MULTIMEDIA_EXPORT)
class Q_MULTIMEDIA_EXPORT QMediaTimeRange
{
public:
struct Interval
{
constexpr Interval() noexcept = default;
explicit constexpr Interval(qint64 start, qint64 end) noexcept
: s(start), e(end)
{}
constexpr qint64 start() const noexcept { return s; }
constexpr qint64 end() const noexcept { return e; }
constexpr bool contains(qint64 time) const noexcept
{
return isNormal() ? (s <= time && time <= e)
: (e <= time && time <= s);
}
constexpr bool isNormal() const noexcept { return s <= e; }
constexpr Interval normalized() const
{
return s > e ? Interval(e, s) : *this;
}
constexpr Interval translated(qint64 offset) const
{
return Interval(s + offset, e + offset);
}
friend constexpr bool operator==(Interval lhs, Interval rhs) noexcept
{
return lhs.start() == rhs.start() && lhs.end() == rhs.end();
}
friend constexpr bool operator!=(Interval lhs, Interval rhs) noexcept
{
return lhs.start() != rhs.start() || lhs.end() != rhs.end();
}
private:
friend class QMediaTimeRangePrivate;
qint64 s = 0;
qint64 e = 0;
};
QMediaTimeRange();
explicit QMediaTimeRange(qint64 start, qint64 end);
QMediaTimeRange(const Interval&);
QMediaTimeRange(const QMediaTimeRange &range) noexcept;
~QMediaTimeRange();
QMediaTimeRange &operator=(const QMediaTimeRange&) noexcept;
QMediaTimeRange(QMediaTimeRange &&other) noexcept = default;
QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QMediaTimeRange)
void swap(QMediaTimeRange &other) noexcept
{ qSwap(d, other.d); }
void detach();
QMediaTimeRange &operator=(const Interval&);
qint64 earliestTime() const;
qint64 latestTime() const;
QList<QMediaTimeRange::Interval> intervals() const;
bool isEmpty() const;
bool isContinuous() const;
bool contains(qint64 time) const;
void addInterval(qint64 start, qint64 end);
void addInterval(const Interval &interval);
void addTimeRange(const QMediaTimeRange&);
void removeInterval(qint64 start, qint64 end);
void removeInterval(const Interval &interval);
void removeTimeRange(const QMediaTimeRange&);
QMediaTimeRange& operator+=(const QMediaTimeRange&);
QMediaTimeRange& operator+=(const Interval&);
QMediaTimeRange& operator-=(const QMediaTimeRange&);
QMediaTimeRange& operator-=(const Interval&);
void clear();
friend inline bool operator==(const QMediaTimeRange &lhs, const QMediaTimeRange &rhs)
{ return lhs.intervals() == rhs.intervals(); }
friend inline bool operator!=(const QMediaTimeRange &lhs, const QMediaTimeRange &rhs)
{ return lhs.intervals() != rhs.intervals(); }
private:
QExplicitlySharedDataPointer<QMediaTimeRangePrivate> d;
};
#ifndef QT_NO_DEBUG_STREAM
Q_MULTIMEDIA_EXPORT QDebug operator<<(QDebug, const QMediaTimeRange::Interval &);
Q_MULTIMEDIA_EXPORT QDebug operator<<(QDebug, const QMediaTimeRange &);
#endif
inline QMediaTimeRange operator+(const QMediaTimeRange &r1, const QMediaTimeRange &r2)
{ return (QMediaTimeRange(r1) += r2); }
inline QMediaTimeRange operator-(const QMediaTimeRange &r1, const QMediaTimeRange &r2)
{ return (QMediaTimeRange(r1) -= r2); }
Q_DECLARE_SHARED(QMediaTimeRange)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QMediaTimeRange)
Q_DECLARE_METATYPE(QMediaTimeRange::Interval)
#endif // QMEDIATIMERANGE_H
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