clock.h

#ifndef CLOCK_H
#define CLOCK_H

#include <tools/global.h>

#include <QDateTime>
#include <QMultiMap>
#include <QTimer>

namespace domain
{

class StorableData;

class DOMAIN_EXPORT Clock : public QObject
{
        Q_OBJECT

    public:

        Clock();

        const QDateTime& time() const;

        void setTime(const QDateTime& time);

        void addEvent(const QDateTime& time, StorableData* data);

        void removeEvents(StorableData* data);

        void setTicking(bool enable);

        bool isTicking() const;

        static QDateTime currentTime();

        static void newEvent(const QDateTime& time, StorableData* data);

        static void deleteEvents(StorableData* data);

    Q_SIGNALS:

        void timeChanged(const QDateTime& newTime);

    private Q_SLOTS:

        void tick();

    private:

        QDateTime m_time;
        QMultiMap<QDateTime, StorableData*> m_events;
        QTimer m_timer;
};

}

#endif

---