1 files changed, 104 insertions, 0 deletions
diff --git a/libopie/pim/otimezone.cpp b/libopie/pim/otimezone.cpp
new file mode 100644
index 0000000..b2bd3aa
--- a/dev/null
+++ b/libopie/pim/otimezone.cpp
@@ -0,0 +1,104 @@
+#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" );
+        ::setenv( "TZ", zone.latin1(), true );
+        ::tzset();
+
+        tm* broken = ::localtime( &t );
+        ::setenv( "TZ", org, true );
+
+        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" );
+        ::setenv( "TZ", str.latin1(), true );
+        ::tzset();
+
+        time_t ti = ::mktime( &broken );
+        ::setenv( "TZ", org, true );
+
+        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;
+}