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path: root/libopie2/opiepim/core/opimtimezone.cpp
authormickeyl <mickeyl>2004-02-24 12:46:23 (UTC)
committer mickeyl <mickeyl>2004-02-24 12:46:23 (UTC)
commit911473db35a9fce5f3589f03c27210456faaba86 (patch) (side-by-side diff)
tree7d55b6117b24de6ab18747b00a4641d38001c0ed /libopie2/opiepim/core/opimtimezone.cpp
parenta2ead23c3614fe581261455cb4c3f31cee2098f3 (diff)
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*phew* here is the class and file rename patch. not converted yet: backend,
but that will be not visible to application classes so we can change it later.
Diffstat (limited to 'libopie2/opiepim/core/opimtimezone.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opiepim/core/opimtimezone.cpp188
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;
+}
+
+}