qbbbuttoneventnotifier.h

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#ifndef QBBBUTTONSEVENTNOTIFIER_H
#define QBBBUTTONSEVENTNOTIFIER_H

#include <QObject>
#include <QHash>

QT_BEGIN_NAMESPACE

class QSocketNotifier;

class QBBButtonEventNotifier : public QObject
{
    Q_OBJECT
    Q_ENUMS(ButtonId)
public:
    enum ButtonId {
        bid_minus = 0,
        bid_playpause,
        bid_plus,
        bid_power,
        ButtonCount
    };

    enum ButtonState {
        ButtonUp,
        ButtonDown
    };

    explicit QBBButtonEventNotifier(QObject *parent = 0);
    ~QBBButtonEventNotifier();

public Q_SLOTS:
    void start();

private Q_SLOTS:
    void updateButtonStates();

private:
    void close();
    bool parsePPS(const QByteArray &ppsData, QHash<QByteArray, QByteArray> *messageFields) const;

    int mFd;
    QSocketNotifier *mReadNotifier;
    ButtonState mState[ButtonCount];
    QList<QByteArray> mButtonKeys;
};

QT_END_NAMESPACE

#endif // QBBBUTTONSEVENTNOTIFIER_H