1 files changed, 71 insertions, 0 deletions
diff --git a/libopie/pim/otimezone.h b/libopie/pim/otimezone.h
new file mode 100644
index 0000000..bb08349
--- a/dev/null
+++ b/libopie/pim/otimezone.h
@@ -0,0 +1,71 @@
+#ifndef OPIE_TIME_ZONE_H
+#define OPIE_TIME_ZONE_H
+
+#include <time.h>
+#include <qdatetime.h>
+
+/**
+ * A very primitive class to convert time
+ * from one timezone to another
+ * and to localtime
+ * and time_t
+ */
+class OTimeZone {
+ public:
+    typedef QString ZoneName;
+    OTimeZone( const ZoneName&  = ZoneName::null );
+    virtual ~OTimeZone(); // just in case.
+
+    bool isValid()const;
+
+    /**
+     * converts the QDateTime to a DateTime
+     * in the local timezone
+     * if QDateTime is 25th Jan and takes place in Europe/Berlin at 12h
+     * and the current timezone is Europe/London the returned
+     * time will be 11h.
+     */
+    QDateTime toLocalDateTime( const QDateTime& dt );
+
+    /**
+     * converts the QDateTime to UTC time
+     */
+    QDateTime toUTCDateTime( const QDateTime& dt );
+
+    /**
+     * reads the time_t into a QDateTime using UTC as timezone!
+     */
+    QDateTime fromUTCDateTime( time_t );
+
+    /**
+     * converts the time_t to the time in the timezone
+     */
+    QDateTime toDateTime( time_t );
+
+    /**
+     * converts the QDateTime from one timezone to this timeZone
+     */
+    QDateTime toDateTime( const QDateTime&, const OTimeZone& timeZone );
+
+    /**
+     * converts the date time into a time_t. It takes the timezone into account
+     */
+    time_t fromDateTime( const QDateTime& );
+
+    /**
+     * converts the datetime with timezone UTC
+     */
+    time_t fromUTCDateTime( const QDateTime& );
+
+    static OTimeZone current();
+    static OTimeZone utc();
+
+    QString timeZone()const;
+ private:
+    ZoneName m_name;
+    class Private;
+    Private* d;
+};
+
+
+#endif