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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.
*/
#include "otimezone.h"
/* STD */
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
namespace Opie
{
QDateTime utcTime( time_t t )
{
tm * broken = ::gmtime( &t );
QDateTime ret;
ret.setDate( QDate( broken->tm_year + 1900, broken->tm_mon + 1, broken->tm_mday ) );
ret.setTime( QTime( broken->tm_hour, broken->tm_min, broken->tm_sec ) );
return ret;
}
QDateTime utcTime( time_t t, const QString& zone )
{
QCString org = ::getenv( "TZ" );
#ifndef Q_OS_MACX // Following line causes bus errors on Mac
::setenv( "TZ", zone.latin1(), true );
::tzset();
tm* broken = ::localtime( &t );
::setenv( "TZ", org, true );
#else
#warning "Need a replacement for MacOSX!!"
tm* broken = ::localtime( &t );
#endif
QDateTime ret;
ret.setDate( QDate( broken->tm_year + 1900, broken->tm_mon + 1, broken->tm_mday ) );
ret.setTime( QTime( broken->tm_hour, broken->tm_min, broken->tm_sec ) );
return ret;
}
time_t to_Time_t( const QDateTime& utc, const QString& str )
{
QDate d = utc.date();
QTime t = utc.time();
tm broken;
broken.tm_year = d.year() - 1900;
broken.tm_mon = d.month() - 1;
broken.tm_mday = d.day();
broken.tm_hour = t.hour();
broken.tm_min = t.minute();
broken.tm_sec = t.second();
QCString org = ::getenv( "TZ" );
#ifndef Q_OS_MACX // Following line causes bus errors on Mac
::setenv( "TZ", str.latin1(), true );
::tzset();
time_t ti = ::mktime( &broken );
::setenv( "TZ", org, true );
#else
#warning "Need a replacement for MacOSX!!"
time_t ti = ::mktime( &broken );
#endif
return ti;
}
}
namespace Opie
{
OTimeZone::OTimeZone( const ZoneName& zone )
: m_name( zone )
{}
OTimeZone::~OTimeZone()
{}
bool OTimeZone::isValid() const
{
return !m_name.isEmpty();
}
/*
* we will get the current timezone
* and ask it to convert to the timezone date
*/
QDateTime OTimeZone::toLocalDateTime( const QDateTime& dt )
{
return OTimeZone::current().toDateTime( dt, *this );
}
QDateTime OTimeZone::toUTCDateTime( const QDateTime& dt )
{
return OTimeZone::utc().toDateTime( dt, *this );
}
QDateTime OTimeZone::fromUTCDateTime( time_t t )
{
return utcTime( t );
}
QDateTime OTimeZone::toDateTime( time_t t )
{
return utcTime( t, m_name );
}
/*
* convert dt to utc using zone.m_name
* convert utc -> timeZoneDT using this->m_name
*/
QDateTime OTimeZone::toDateTime( const QDateTime& dt, const OTimeZone& zone )
{
time_t utc = to_Time_t( dt, zone.m_name );
qWarning( "%d %s", utc, zone.m_name.latin1() );
return utcTime( utc, m_name );
}
time_t OTimeZone::fromDateTime( const QDateTime& time )
{
return to_Time_t( time, m_name );
}
time_t OTimeZone::fromUTCDateTime( const QDateTime& time )
{
return to_Time_t( time, "UTC" );
}
OTimeZone OTimeZone::current()
{
QCString str = ::getenv( "TZ" );
OTimeZone zone( str );
return zone;
}
OTimeZone OTimeZone::utc()
{
return OTimeZone( "UTC" );
}
QString OTimeZone::timeZone() const
{
return m_name;
}
}
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