#ifndef OPIE_TIME_ZONE_H #define OPIE_TIME_ZONE_H #include <time.h> #include <qdatetime.h> /** * A very primitive class to convert time * from one timezone to another * and to localtime * and time_t */ class OTimeZone { public: typedef QString ZoneName; OTimeZone( const ZoneName& = ZoneName::null ); virtual ~OTimeZone(); // just in case. bool isValid()const; /** * converts the QDateTime to a DateTime * in the local timezone * if QDateTime is 25th Jan and takes place in Europe/Berlin at 12h * and the current timezone is Europe/London the returned * time will be 11h. */ QDateTime toLocalDateTime( const QDateTime& dt ); /** * converts the QDateTime to UTC time */ QDateTime toUTCDateTime( const QDateTime& dt ); /** * reads the time_t into a QDateTime using UTC as timezone! */ QDateTime fromUTCDateTime( time_t ); /** * converts the time_t to the time in the timezone */ QDateTime toDateTime( time_t ); /** * converts the QDateTime from one timezone to this timeZone */ QDateTime toDateTime( const QDateTime&, const OTimeZone& timeZone ); /** * converts the date time into a time_t. It takes the timezone into account */ time_t fromDateTime( const QDateTime& ); /** * converts the datetime with timezone UTC */ time_t fromUTCDateTime( const QDateTime& ); static OTimeZone current(); static OTimeZone utc(); QString timeZone()const; private: ZoneName m_name; class Private; Private* d; }; #endif