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diff --git a/libkcal/icalformat.h b/libkcal/icalformat.h
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+/*
+    This file is part of libkcal.
+
+    Copyright (c) 2001-2003 Cornelius Schumacher <schumacher@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+#ifndef KCAL_ICALFORMAT_H
+#define KCAL_ICALFORMAT_H
+
+#include <qstring.h>
+
+#include "scheduler.h"
+
+#include "calformat.h"
+#include <kdepimmacros.h>
+
+namespace KCal {
+
+class ICalFormatImpl;
+class FreeBusy;
+
+/**
+  This class implements the iCalendar format. It provides methods for
+  loading/saving/converting iCalendar format data into the internal KOrganizer
+  representation as Calendar and Events.
+
+  @short iCalendar format implementation
+*/
+class LIBKCAL_EXPORT ICalFormat : public CalFormat
+{
+  public:
+    ICalFormat();
+    virtual ~ICalFormat();
+
+    /**
+      Loads a calendar on disk in iCalendar format into calendar.
+      Returns true if successful, else returns false. Provides more error
+      information by exception().
+
+      @param calendar Calendar object to be filled.
+      @param fileName The name of the calendar file on disk.
+    */
+    bool load( Calendar * calendar, const QString &fileName );
+    /**
+      Writes out the calendar to disk in iCalendar format. Returns true if
+      successful and false on error.
+     
+      @param calendar The Calendar object to be written.
+      @param fileName The name of the calendar file on disk.
+    */
+    bool save( Calendar * calendar, const QString &fileName );
+
+    /**
+      Parse string and populate calendar with that information.
+    */
+    bool fromString( Calendar * calendar, const QString & );
+
+    /**
+      Parse string and return first ical component.
+    */
+    Incidence *fromString( const QString & );
+
+    /**
+      Return calendar information as string.
+    */
+    QString toString( Calendar * );
+    /**
+      Return incidence as full iCalendar formatted text.
+    */
+    QString toICalString( Incidence * );
+    /**
+      Return incidence as iCalendar formatted text.
+    */
+    QString toString( Incidence * );
+    /**
+      Return recurrence rule as iCalendar formatted text.
+    */
+    QString toString( RecurrenceRule * );
+    /**
+      Parse string and fill recurrence object with
+      that information
+    */
+    bool fromString ( RecurrenceRule *, const QString& );
+  
+    /**
+      Create a scheduling message for event @p e using method @p m.
+    */
+    QString createScheduleMessage(IncidenceBase *e,Scheduler::Method m);
+    /**
+      Parse scheduling message provided as string @p s.
+    */
+    ScheduleMessage *parseScheduleMessage( Calendar *, const QString &s);
+
+    /**
+      Parse FREEBUSY object.
+    */
+    FreeBusy *parseFreeBusy( const QString & );
+
+    /**
+      Set id of used time zone and whether this time zone is UTC or not.
+    */
+    void setTimeZone( const QString &id, bool utc );
+    /**
+      Return id string of timezone used.
+    */
+    QString timeZoneId() const;
+    /**
+      Return true if timezone used is UTC, otherwise return false.
+    */
+    bool utc() const;
+
+  protected:
+    /**
+      Parse string and return first ical component of a raw byte array of 
+      a utf8 encoded string. This is an overload used for efficiency reading
+      to avoid utf8 conversions, which are expensive, when reading from disk.
+    */
+    bool fromRawString( Calendar * calendar, const QCString & );
+    void setImplementation( ICalFormatImpl *impl );
+
+  private:
+    ICalFormatImpl *mImpl;
+
+    QString mTimeZoneId;
+    bool mUtc;
+
+    class Private;
+    Private *d;
+};
+
+}
+
+#endif