Diffstat (limited to 'libopie2/opiepim/core/opimtimezone.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libopie2/opiepim/core/opimtimezone.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/libopie2/opiepim/core/opimtimezone.h b/libopie2/opiepim/core/opimtimezone.h new file mode 100644 index 0000000..284e80f --- a/dev/null +++ b/libopie2/opiepim/core/opimtimezone.h @@ -0,0 +1,107 @@ +/* + This file is part of the Opie Project + Copyright (C) The Main Author <main-author@whereever.org> + =. Copyright (C) The Opie Team <opie-devel@handhelds.org> + .=l. + .>+-= + _;:, .> :=|. This program is free software; you can +.> <`_, > . <= redistribute it and/or modify it under +:`=1 )Y*s>-.-- : the terms of the GNU Library General Public +.="- .-=="i, .._ License as published by the Free Software + - . .-<_> .<> Foundation; either version 2 of the License, + ._= =} : or (at your option) any later version. + .%`+i> _;_. + .i_,=:_. -<s. This program is distributed in the hope that + + . -:. = it will be useful, but WITHOUT ANY WARRANTY; + : .. .:, . . . without even the implied warranty of + =_ + =;=|` MERCHANTABILITY or FITNESS FOR A + _.=:. : :=>`: PARTICULAR PURPOSE. See the GNU +..}^=.= = ; Library General Public License for more +++= -. .` .: details. + : = ...= . :.=- + -. .:....=;==+<; You should have received a copy of the GNU + -_. . . )=. = Library General Public License along with + -- :-=` this library; see the file COPYING.LIB. + If not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#ifndef OTIMEZONE_H +#define OTIMEZONE_H + +/* QT */ +#include <qdatetime.h> + +/* STD */ +#include <time.h> + +namespace Opie +{ +/** + * A very primitive class to convert time + * from one timezone to another + * and to localtime + * and time_t + */ +class OPimTimeZone { + + public: + typedef QString ZoneName; + OPimTimeZone( const ZoneName& = ZoneName::null ); + virtual ~OPimTimeZone(); // 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 OPimTimeZone& 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 OPimTimeZone current(); + static OPimTimeZone utc(); + + QString timeZone() const; + + private: + ZoneName m_name; + class Private; + Private* d; +}; +}; + +#endif |