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/*
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 OPIE_TIME_ZONE_H
#define OPIE_TIME_ZONE_H
#include <time.h>
#include <qdatetime.h>
namespace Opie
{
/**
* 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
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