qt-everywhere-src-5.15.1/qtmultimedia/src/multimedia/qmediatimerange.h

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#ifndef QMEDIATIMERANGE_H
#define QMEDIATIMERANGE_H

#include <QtMultimedia/qtmultimediaglobal.h>
#include <QtMultimedia/qmultimedia.h>
#include <QtCore/qshareddata.h>

QT_BEGIN_NAMESPACE


class QMediaTimeRangePrivate;

class Q_MULTIMEDIA_EXPORT QMediaTimeInterval
{
public:
    QMediaTimeInterval();
    QMediaTimeInterval(qint64 start, qint64 end);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
    QMediaTimeInterval(const QMediaTimeInterval&);
    QMediaTimeInterval &operator=(const QMediaTimeInterval&) = default;
    QMediaTimeInterval(QMediaTimeInterval &&) = default;
    QMediaTimeInterval &operator=(QMediaTimeInterval &&) = default;
#endif

    qint64 start() const;
    qint64 end() const;

    bool contains(qint64 time) const;

    bool isNormal() const;
    QMediaTimeInterval normalized() const;
    QMediaTimeInterval translated(qint64 offset) const;

private:
    friend class QMediaTimeRangePrivate;
    friend class QMediaTimeRange;

    qint64 s;
    qint64 e;
};

Q_MULTIMEDIA_EXPORT bool operator==(const QMediaTimeInterval&, const QMediaTimeInterval&);
Q_MULTIMEDIA_EXPORT bool operator!=(const QMediaTimeInterval&, const QMediaTimeInterval&);

class Q_MULTIMEDIA_EXPORT QMediaTimeRange
{
public:

    QMediaTimeRange();
    QMediaTimeRange(qint64 start, qint64 end);
    QMediaTimeRange(const QMediaTimeInterval&);
    QMediaTimeRange(const QMediaTimeRange &range);
    ~QMediaTimeRange();

    QMediaTimeRange &operator=(const QMediaTimeRange&);
    QMediaTimeRange &operator=(const QMediaTimeInterval&);

    qint64 earliestTime() const;
    qint64 latestTime() const;

    QList<QMediaTimeInterval> intervals() const;
    bool isEmpty() const;
    bool isContinuous() const;

    bool contains(qint64 time) const;

    void addInterval(qint64 start, qint64 end);
    void addInterval(const QMediaTimeInterval &interval);
    void addTimeRange(const QMediaTimeRange&);

    void removeInterval(qint64 start, qint64 end);
    void removeInterval(const QMediaTimeInterval &interval);
    void removeTimeRange(const QMediaTimeRange&);

    QMediaTimeRange& operator+=(const QMediaTimeRange&);
    QMediaTimeRange& operator+=(const QMediaTimeInterval&);
    QMediaTimeRange& operator-=(const QMediaTimeRange&);
    QMediaTimeRange& operator-=(const QMediaTimeInterval&);

    void clear();

private:
    QSharedDataPointer<QMediaTimeRangePrivate> d;
};

Q_MULTIMEDIA_EXPORT bool operator==(const QMediaTimeRange&, const QMediaTimeRange&);
Q_MULTIMEDIA_EXPORT bool operator!=(const QMediaTimeRange&, const QMediaTimeRange&);
Q_MULTIMEDIA_EXPORT QMediaTimeRange operator+(const QMediaTimeRange&, const QMediaTimeRange&);
Q_MULTIMEDIA_EXPORT QMediaTimeRange operator-(const QMediaTimeRange&, const QMediaTimeRange&);

#ifndef QT_NO_DEBUG_STREAM
Q_MULTIMEDIA_EXPORT QDebug operator<<(QDebug, const QMediaTimeRange &);
#endif

QT_END_NAMESPACE


#endif  // QMEDIATIMERANGE_H