LogReplayLinkController.h

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#pragma once
 
#include <QtCore/QPointer>
#include <QtCore/QString>
#include <QtQmlIntegration/QtQmlIntegration>
 
class LogReplayLink;
 
class LogReplayLinkController : public QObject
{
    Q_OBJECT
    QML_ELEMENT
    Q_MOC_INCLUDE("LogReplayLink.h")
    Q_PROPERTY(LogReplayLink    *link           READ    link            WRITE setLink               NOTIFY linkChanged)
    Q_PROPERTY(bool             isPlaying       READ    isPlaying       WRITE setIsPlaying          NOTIFY isPlayingChanged)
    Q_PROPERTY(qreal            percentComplete READ    percentComplete WRITE setPercentComplete    NOTIFY percentCompleteChanged)
    Q_PROPERTY(QString          totalTime       MEMBER  _totalTime                                  NOTIFY totalTimeChanged)
    Q_PROPERTY(QString          playheadTime    MEMBER  _playheadTime                               NOTIFY playheadTimeChanged)
    Q_PROPERTY(qreal            playbackSpeed   MEMBER  _playbackSpeed                              NOTIFY playbackSpeedChanged)
 
public:
    explicit LogReplayLinkController(QObject *parent = nullptr);
    ~LogReplayLinkController();
 
    LogReplayLink *link() const { return _link; }
    void setLink(LogReplayLink *link);
 
    bool isPlaying() const { return _isPlaying; }
    void setIsPlaying(bool isPlaying) const;
 
    qreal percentComplete() const { return _percentComplete; }
    void setPercentComplete(qreal percentComplete) const;
 
signals:
    void isPlayingChanged(bool isPlaying);
    void linkChanged(LogReplayLink *link);
    void percentCompleteChanged(qreal percentComplete);
    void playbackSpeedChanged(qreal playbackSpeed);
    void playheadTimeChanged(const QString &playheadTime);
    void totalTimeChanged(const QString &totalTime);
 
private slots:
    void _currentLogTimeSecs(uint32_t secs);
    void _linkDisconnected() { setLink(nullptr); }
    void _logFileStats(uint32_t logDurationSecs);
    void _playbackAtEnd();
    void _playbackPaused();
    void _playbackPercentCompleteChanged(qreal percentComplete);
    void _playbackStarted();
 
private:
    static QString _secondsToHMS(uint32_t seconds);
 
    static constexpr int64_t kNoPlayhead = -1;
 
    bool _isPlaying = false;
    qreal _percentComplete = 0;
    int64_t _playheadSecs = kNoPlayhead;
    qreal _playbackSpeed = 1;
    QString _playheadTime;
    QString _totalTime;
    QPointer<LogReplayLink> _link;
};