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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include "otimezone.h"
namespace {
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;
}
}
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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