1 files changed, 188 insertions, 0 deletions

diff --git a/libopie2/opiepim/core/opimtimezone.cpp b/libopie2/opiepim/core/opimtimezone.cpp
new file mode 100644
index 0000000..be21b1b
--- a/dev/null
+++ b/libopie2/opiepim/core/opimtimezone.cpp
@@ -0,0 +1,188 @@
+/*
+                             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 "opimtimezone.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
+{
+OPimTimeZone::OPimTimeZone( const ZoneName& zone )
+        : m_name( zone )
+{}
+
+
+OPimTimeZone::~OPimTimeZone()
+{}
+
+
+bool OPimTimeZone::isValid() const
+{
+    return !m_name.isEmpty();
+}
+
+/*
+ * we will get the current timezone
+ * and ask it to convert to the timezone date
+ */
+QDateTime OPimTimeZone::toLocalDateTime( const QDateTime& dt )
+{
+    return OPimTimeZone::current().toDateTime( dt, *this );
+}
+
+
+QDateTime OPimTimeZone::toUTCDateTime( const QDateTime& dt )
+{
+    return OPimTimeZone::utc().toDateTime( dt, *this );
+}
+
+
+QDateTime OPimTimeZone::fromUTCDateTime( time_t t )
+{
+    return utcTime( t );
+}
+
+
+QDateTime OPimTimeZone::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 OPimTimeZone::toDateTime( const QDateTime& dt, const OPimTimeZone& 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 OPimTimeZone::fromDateTime( const QDateTime& time )
+{
+    return to_Time_t( time, m_name );
+}
+
+
+time_t OPimTimeZone::fromUTCDateTime( const QDateTime& time )
+{
+    return to_Time_t( time, "UTC" );
+}
+
+
+OPimTimeZone OPimTimeZone::current()
+{
+    QCString str = ::getenv( "TZ" );
+    OPimTimeZone zone( str );
+    return zone;
+}
+
+
+OPimTimeZone OPimTimeZone::utc()
+{
+    return OPimTimeZone( "UTC" );
+}
+
+
+QString OPimTimeZone::timeZone() const
+{
+    return m_name;
+}
+
+}