todo recurchanges

3 files changed, 52 insertions, 2 deletions

diff --git a/libkcal/icalformatimpl.cpp b/libkcal/icalformatimpl.cpp
index bd13132..bb9cb29 100644
--- a/libkcal/icalformatimpl.cpp
+++ b/libkcal/icalformatimpl.cpp
@@ -147,513 +147,516 @@ icalcomponent *ICalFormatImpl::writeEvent(Event *event)
 
   // start time
   icaltimetype start;
   if (event->doesFloat()) {
 //    kdDebug(5800) << "§§ Incidence " << event->summary() << " floats." << endl;
     start = writeICalDate(event->dtStart().date());
   } else {
 //    kdDebug(5800) << "§§ incidence " << event->summary() << " has time." << endl;
     start = writeICalDateTime(event->dtStart());
   }
   icalcomponent_add_property(vevent,icalproperty_new_dtstart(start));
 
   if (event->hasEndDate()) {
     // end time
     icaltimetype end;
     if (event->doesFloat()) {
 //      kdDebug(5800) << "§§ Event " << event->summary() << " floats." << endl;
       // +1 day because end date is non-inclusive.
       end = writeICalDate( event->dtEnd().date().addDays( 1 ) );
     } else {
 //      kdDebug(5800) << "§§ Event " << event->summary() << " has time." << endl;
       end = writeICalDateTime(event->dtEnd());
     }
     icalcomponent_add_property(vevent,icalproperty_new_dtend(end));
   }
 
 // TODO: attachments, resources
 #if 0
   // attachments
   tmpStrList = anEvent->attachments();
   for ( QStringList::Iterator it = tmpStrList.begin();
         it != tmpStrList.end();
         ++it )
     addPropValue(vevent, VCAttachProp, (*it).utf8());
 
   // resources
   tmpStrList = anEvent->resources();
   tmpStr = tmpStrList.join(";");
   if (!tmpStr.isEmpty())
     addPropValue(vevent, VCResourcesProp, tmpStr.utf8());
 
 #endif
 
   // Transparency
   switch( event->transparency() ) {
   case Event::Transparent:
       icalcomponent_add_property(vevent, icalproperty_new_transp(ICAL_TRANSP_TRANSPARENT));
     break;
   case Event::Opaque:
     icalcomponent_add_property(vevent, icalproperty_new_transp(ICAL_TRANSP_OPAQUE));
     break;
   }
 
   return vevent;
 }
 
 icalcomponent *ICalFormatImpl::writeFreeBusy(FreeBusy *freebusy,
                                              Scheduler::Method method)
 {
 
 
   icalcomponent *vfreebusy = icalcomponent_new(ICAL_VFREEBUSY_COMPONENT);
 
   writeIncidenceBase(vfreebusy,freebusy);
 
   icalcomponent_add_property(vfreebusy, icalproperty_new_dtstart(
       writeICalDateTime(freebusy->dtStart())));
 
   icalcomponent_add_property(vfreebusy, icalproperty_new_dtend(
       writeICalDateTime(freebusy->dtEnd())));
 
   if (method == Scheduler::Request) {
     icalcomponent_add_property(vfreebusy,icalproperty_new_uid(
        freebusy->uid().utf8()));
   }
 
   //Loops through all the periods in the freebusy object
   QValueList<Period> list = freebusy->busyPeriods();
   QValueList<Period>::Iterator it;
   icalperiodtype period;
   for (it = list.begin(); it!= list.end(); ++it) {
     period.start = writeICalDateTime((*it).start());
     period.end = writeICalDateTime((*it).end());
     icalcomponent_add_property(vfreebusy, icalproperty_new_freebusy(period) );
   }
 
   return vfreebusy;
 }
 
 icalcomponent *ICalFormatImpl::writeJournal(Journal *journal)
 {
   icalcomponent *vjournal = icalcomponent_new(ICAL_VJOURNAL_COMPONENT);
 
   writeIncidence(vjournal,journal);
   
   // start time
   if (journal->dtStart().isValid()) {
     icaltimetype start;
     if (journal->doesFloat()) {
 //      kdDebug(5800) << "§§ Incidence " << event->summary() << " floats." << endl;
       start = writeICalDate(journal->dtStart().date());
     } else {
 //      kdDebug(5800) << "§§ incidence " << event->summary() << " has time." << endl;
       start = writeICalDateTime(journal->dtStart());
     }
     icalcomponent_add_property(vjournal,icalproperty_new_dtstart(start));
   }
 
   return vjournal;
 }
 
 void ICalFormatImpl::writeIncidence(icalcomponent *parent,Incidence *incidence)
 {
   // pilot sync stuff
 // TODO: move this application-specific code to kpilot
   if (incidence->pilotId()) {
     incidence->setNonKDECustomProperty("X-PILOTID", QString::number(incidence->pilotId()));
     incidence->setNonKDECustomProperty("X-PILOTSTAT", QString::number(incidence->syncStatus()));
   }
   if ( !incidence->IDStr().isEmpty()) {
       incidence->setNonKDECustomProperty("X-KOPIEXTID",incidence->IDStr() );
   }
 
 
   writeIncidenceBase(parent,incidence);
   if (incidence->cancelled()) {
       icalcomponent_add_property(parent,icalproperty_new_status(ICAL_STATUS_CANCELLED));
   }
 
   // creation date
   icalcomponent_add_property(parent,icalproperty_new_created(
       writeICalDateTime(incidence->created())));
 
   // unique id
   icalcomponent_add_property(parent,icalproperty_new_uid(
       incidence->uid().utf8()));
 
   // revision
   icalcomponent_add_property(parent,icalproperty_new_sequence(
       incidence->revision()));
 
   // last modification date
   icalcomponent_add_property(parent,icalproperty_new_lastmodified(
       writeICalDateTime(incidence->lastModified())));
 
   // description
   if (!incidence->description().isEmpty()) {
     icalcomponent_add_property(parent,icalproperty_new_description(
         incidence->description().utf8()));
   }
 
   // summary
   if (!incidence->summary().isEmpty()) {
     icalcomponent_add_property(parent,icalproperty_new_summary(
         incidence->summary().utf8()));
   }
 
   // location
   if (!incidence->location().isEmpty()) {
     icalcomponent_add_property(parent,icalproperty_new_location(
         incidence->location().utf8()));
   }
 
 // TODO:
   // status
 //  addPropValue(parent, VCStatusProp, incidence->getStatusStr().utf8());
 
   // secrecy
   enum icalproperty_class classInt;
   switch (incidence->secrecy()) {
     case Incidence::SecrecyPublic:
       classInt = ICAL_CLASS_PUBLIC;
       break;
     case Incidence::SecrecyConfidential:
       classInt = ICAL_CLASS_CONFIDENTIAL;
       break;
     case Incidence::SecrecyPrivate:
       classInt =ICAL_CLASS_PRIVATE ;
     default:
       classInt =ICAL_CLASS_PRIVATE ;
       break;
   }
   icalcomponent_add_property(parent,icalproperty_new_class(classInt));
 
   // priority
   icalcomponent_add_property(parent,icalproperty_new_priority(
       incidence->priority()));
 
   // categories
   QStringList categories = incidence->categories();
   QStringList::Iterator it;
   for(it = categories.begin(); it != categories.end(); ++it ) {
     icalcomponent_add_property(parent,icalproperty_new_categories((*it).utf8()));
   }
 // TODO: Ensure correct concatenation of categories properties.
 
 /*
   // categories
   tmpStrList = incidence->getCategories();
   tmpStr = "";
   QString catStr;
   for ( QStringList::Iterator it = tmpStrList.begin();
         it != tmpStrList.end();
         ++it ) {
     catStr = *it;
     if (catStr[0] == ' ')
       tmpStr += catStr.mid(1);
     else
       tmpStr += catStr;
     // this must be a ';' character as the vCalendar specification requires!
     // vcc.y has been hacked to translate the ';' to a ',' when the vcal is
     // read in.
     tmpStr += ";";
   }
   if (!tmpStr.isEmpty()) {
     tmpStr.truncate(tmpStr.length()-1);
     icalcomponent_add_property(parent,icalproperty_new_categories(
         writeText(incidence->getCategories().join(";"))));
   }
 */
 
   // related event
   if (incidence->relatedTo()) {
     icalcomponent_add_property(parent,icalproperty_new_relatedto(
         incidence->relatedTo()->uid().utf8()));
   }
 
   // recurrence rule stuff
   Recurrence *recur = incidence->recurrence();
   if (recur->doesRecur()) {
     
     icalcomponent_add_property(parent,writeRecurrenceRule(recur));
   }
 
   // recurrence excpetion dates
   DateList dateList = incidence->exDates();
   DateList::ConstIterator exIt;
   for(exIt = dateList.begin(); exIt != dateList.end(); ++exIt) {
     icalcomponent_add_property(parent,icalproperty_new_exdate(
         writeICalDate(*exIt)));
   }
   
   // attachments
   QPtrList<Attachment> attachments = incidence->attachments();
   for (Attachment *at = attachments.first(); at; at = attachments.next())
     icalcomponent_add_property(parent,writeAttachment(at));
 
   // alarms
   QPtrList<Alarm> alarms = incidence->alarms();
   Alarm* alarm;
   for (alarm = alarms.first(); alarm; alarm = alarms.next()) {
     if (alarm->enabled()) {
       kdDebug(5800) << "Write alarm for " << incidence->summary() << endl;
       icalcomponent_add_component(parent,writeAlarm(alarm));
     }
   }
-
+  if( incidence->hasRecurrenceID() ) {
+      icalcomponent_add_property(parent,
+                                 icalproperty_new_recurrenceid( writeICalDateTime( incidence->recurrenceID())));
+  }
   // duration
 
 // turned off as it always is set to PTS0 (and must not occur together with DTEND
 
 //  if (incidence->hasDuration()) {
 //    icaldurationtype duration;
 //    duration = writeICalDuration(incidence->duration());
 //    icalcomponent_add_property(parent,icalproperty_new_duration(duration));
 //  }
 }
 
 void ICalFormatImpl::writeIncidenceBase(icalcomponent *parent,IncidenceBase *incidenceBase)
 {
   icalcomponent_add_property(parent,icalproperty_new_dtstamp(
       writeICalDateTime(QDateTime::currentDateTime())));
 
   // organizer stuff
   icalcomponent_add_property(parent,icalproperty_new_organizer(
       ("MAILTO:" + incidenceBase->organizer()).utf8()));
 
   // attendees
   if (incidenceBase->attendeeCount() != 0) {
     QPtrList<Attendee> al = incidenceBase->attendees();
     QPtrListIterator<Attendee> ai(al);
     for (; ai.current(); ++ai) {
       icalcomponent_add_property(parent,writeAttendee(ai.current()));
     }
   }
 
   // custom properties
   writeCustomProperties(parent, incidenceBase);
 }
 
 void ICalFormatImpl::writeCustomProperties(icalcomponent *parent,CustomProperties *properties)
 {
   QMap<QCString, QString> custom = properties->customProperties();
   for (QMap<QCString, QString>::Iterator c = custom.begin();  c != custom.end();  ++c) {
     icalproperty *p = icalproperty_new_x(c.data().utf8());
     icalproperty_set_x_name(p,c.key());
     icalcomponent_add_property(parent,p);
   }
 }
 
 icalproperty *ICalFormatImpl::writeAttendee(Attendee *attendee)
 {
   icalproperty *p = icalproperty_new_attendee("mailto:" + attendee->email().utf8());
 
   if (!attendee->name().isEmpty()) {
     icalproperty_add_parameter(p,icalparameter_new_cn(attendee->name().utf8()));
   }
 
 
   icalproperty_add_parameter(p,icalparameter_new_rsvp(
           attendee->RSVP() ? ICAL_RSVP_TRUE : ICAL_RSVP_FALSE ));
 
   icalparameter_partstat status = ICAL_PARTSTAT_NEEDSACTION;
   switch (attendee->status()) {
     default:
     case Attendee::NeedsAction:
       status = ICAL_PARTSTAT_NEEDSACTION;
       break;
     case Attendee::Accepted:
       status = ICAL_PARTSTAT_ACCEPTED;
       break;
     case Attendee::Declined:
       status = ICAL_PARTSTAT_DECLINED;
       break;
     case Attendee::Tentative:
       status = ICAL_PARTSTAT_TENTATIVE;
       break;
     case Attendee::Delegated:
       status = ICAL_PARTSTAT_DELEGATED;
       break;
     case Attendee::Completed:
       status = ICAL_PARTSTAT_COMPLETED;
       break;
     case Attendee::InProcess:
       status = ICAL_PARTSTAT_INPROCESS;
       break;
   }
   icalproperty_add_parameter(p,icalparameter_new_partstat(status));
 
   icalparameter_role role = ICAL_ROLE_REQPARTICIPANT;
   switch (attendee->role()) {
     case Attendee::Chair:
       role = ICAL_ROLE_CHAIR;
       break;
     default:
     case Attendee::ReqParticipant:
       role = ICAL_ROLE_REQPARTICIPANT;
       break;
     case Attendee::OptParticipant:
       role = ICAL_ROLE_OPTPARTICIPANT;
       break;
     case Attendee::NonParticipant:
       role = ICAL_ROLE_NONPARTICIPANT;
       break;
   }
   icalproperty_add_parameter(p,icalparameter_new_role(role));
 
   if (!attendee->uid().isEmpty()) {
     icalparameter* icalparameter_uid = icalparameter_new_x(attendee->uid().utf8());
     icalparameter_set_xname(icalparameter_uid,"X-UID");
     icalproperty_add_parameter(p,icalparameter_uid);
   }
 
   return p;
 }
 
 icalproperty *ICalFormatImpl::writeAttachment(Attachment *att)
 {
 #if 0
    icalattachtype* attach = icalattachtype_new();
   if (att->isURI())
     icalattachtype_set_url(attach, att->uri().utf8().data());
   else
     icalattachtype_set_base64(attach, att->data(), 0);
 #endif
   icalattach *attach;
   if (att->isURI())
       attach = icalattach_new_from_url( att->uri().utf8().data());
   else
       attach = icalattach_new_from_data ( (unsigned char *)att->data(), 0, 0);
   icalproperty *p = icalproperty_new_attach(attach);
   if (!att->mimeType().isEmpty())
     icalproperty_add_parameter(p,icalparameter_new_fmttype(att->mimeType().utf8().data()));
 
   if (att->isBinary()) {
     icalproperty_add_parameter(p,icalparameter_new_value(ICAL_VALUE_BINARY));
     icalproperty_add_parameter(p,icalparameter_new_encoding(ICAL_ENCODING_BASE64));
   }
   return p;
 }
 
 icalproperty *ICalFormatImpl::writeRecurrenceRule(Recurrence *recur)
 {
 //  kdDebug(5800) << "ICalFormatImpl::writeRecurrenceRule()" << endl;
 
   icalrecurrencetype r;
 
   icalrecurrencetype_clear(&r);
 
   int index = 0;
   int index2 = 0;
 
   QPtrList<Recurrence::rMonthPos> tmpPositions;
   QPtrList<int> tmpDays;
   int *tmpDay;
   Recurrence::rMonthPos *tmpPos;
   bool datetime = false;
   int day;
   int i;
 
   switch(recur->doesRecur()) {
     case Recurrence::rMinutely:
       r.freq = ICAL_MINUTELY_RECURRENCE;
       datetime = true;
       break;
     case Recurrence::rHourly:
       r.freq = ICAL_HOURLY_RECURRENCE;
       datetime = true;
       break;
     case Recurrence::rDaily:
       r.freq = ICAL_DAILY_RECURRENCE;
       break;
     case Recurrence::rWeekly:
       r.freq = ICAL_WEEKLY_RECURRENCE;
       r.week_start = static_cast<icalrecurrencetype_weekday>(recur->weekStart()%7 + 1);
       for (i = 0; i < 7; i++) {
         if (recur->days().testBit(i)) {
           day = (i + 1)%7 + 1;     // convert from Monday=0 to Sunday=1
           r.by_day[index++] = icalrecurrencetype_day_day_of_week(day);
         }
       }
 //      r.by_day[index] = ICAL_RECURRENCE_ARRAY_MAX;
       break;
     case Recurrence::rMonthlyPos:
       r.freq = ICAL_MONTHLY_RECURRENCE;
 
       tmpPositions = recur->monthPositions();
       for (tmpPos = tmpPositions.first();
            tmpPos;
            tmpPos = tmpPositions.next()) {
         for (i = 0; i < 7; i++) {
           if (tmpPos->rDays.testBit(i)) {
             day = (i + 1)%7 + 1;     // convert from Monday=0 to Sunday=1
             day += tmpPos->rPos*8;
             if (tmpPos->negative) day = -day;
             r.by_day[index++] = day;
           }
         }
       }
 //      r.by_day[index] = ICAL_RECURRENCE_ARRAY_MAX;
       break;
     case Recurrence::rMonthlyDay:
       r.freq = ICAL_MONTHLY_RECURRENCE;
 
       tmpDays = recur->monthDays();
       for (tmpDay = tmpDays.first();
            tmpDay;
            tmpDay = tmpDays.next()) {
         r.by_month_day[index++] = icalrecurrencetype_day_position(*tmpDay*8);//*tmpDay);
       }
 //      r.by_day[index] = ICAL_RECURRENCE_ARRAY_MAX;
       break;
     case Recurrence::rYearlyMonth:
     case Recurrence::rYearlyPos:
       r.freq = ICAL_YEARLY_RECURRENCE;
 
       tmpDays = recur->yearNums();
       for (tmpDay = tmpDays.first();
            tmpDay;
            tmpDay = tmpDays.next()) {
         r.by_month[index++] = *tmpDay;
       }
 //      r.by_set_pos[index] = ICAL_RECURRENCE_ARRAY_MAX;
       if (recur->doesRecur() == Recurrence::rYearlyPos) {
         tmpPositions = recur->monthPositions();
         for (tmpPos = tmpPositions.first();
              tmpPos;
              tmpPos = tmpPositions.next()) {
           for (i = 0; i < 7; i++) {
             if (tmpPos->rDays.testBit(i)) {
               day = (i + 1)%7 + 1;     // convert from Monday=0 to Sunday=1
               day += tmpPos->rPos*8;
               if (tmpPos->negative) day = -day;
               r.by_day[index2++] = day;
             }
           }
         }
 //        r.by_day[index2] = ICAL_RECURRENCE_ARRAY_MAX;
       }
       break;
     case Recurrence::rYearlyDay:
       r.freq = ICAL_YEARLY_RECURRENCE;
 
       tmpDays = recur->yearNums();
       for (tmpDay = tmpDays.first();
            tmpDay;
            tmpDay = tmpDays.next()) {
         r.by_year_day[index++] = *tmpDay;
       }
 //      r.by_year_day[index] = ICAL_RECURRENCE_ARRAY_MAX;
       break;
     default:
       r.freq = ICAL_NO_RECURRENCE;
       kdDebug(5800) << "ICalFormatImpl::writeRecurrence(): no recurrence" << endl;
       break;
   }
 
   r.interval = recur->frequency();
 
   if (recur->duration() > 0) {
     r.count = recur->duration();
   } else if (recur->duration() == -1) {
     r.count = 0;
@@ -951,512 +954,517 @@ Event *ICalFormatImpl::readEvent(icalcomponent *vevent)
     event->setFloats(floats);
     if (floats) {
       QDateTime endDate = event->dtEnd();
       event->setDtEnd(endDate.addDays(-1));
     }
   }
 
   // some stupid vCal exporters ignore the standard and use Description
   // instead of Summary for the default field.  Correct for this.
   if (event->summary().isEmpty() &&
       !(event->description().isEmpty())) {
     QString tmpStr = event->description().simplifyWhiteSpace();
     event->setDescription("");
     event->setSummary(tmpStr);
   }
 
   return event;
 }
 
 FreeBusy *ICalFormatImpl::readFreeBusy(icalcomponent *vfreebusy)
 {
   FreeBusy *freebusy = new FreeBusy;
 
   readIncidenceBase(vfreebusy,freebusy);
 
   icalproperty *p = icalcomponent_get_first_property(vfreebusy,ICAL_ANY_PROPERTY);
 
   icaltimetype icaltime;
   icalperiodtype icalperiod;
   QDateTime period_start, period_end;
 
   while (p) {
     icalproperty_kind kind = icalproperty_isa(p);
     switch (kind) {
 
       case ICAL_DTSTART_PROPERTY:  // start date and time
         icaltime = icalproperty_get_dtstart(p);
         freebusy->setDtStart(readICalDateTime(icaltime));
         break;
 
       case ICAL_DTEND_PROPERTY:  // start End Date and Time
         icaltime = icalproperty_get_dtend(p);
         freebusy->setDtEnd(readICalDateTime(icaltime));
         break;
 
       case ICAL_FREEBUSY_PROPERTY:  //Any FreeBusy Times
         icalperiod = icalproperty_get_freebusy(p);
         period_start = readICalDateTime(icalperiod.start);
         period_end = readICalDateTime(icalperiod.end);
         freebusy->addPeriod(period_start, period_end);
         break;
 
       default:
         kdDebug(5800) << "ICALFormat::readIncidence(): Unknown property: " << kind
                   << endl;
       break;
     }
     p = icalcomponent_get_next_property(vfreebusy,ICAL_ANY_PROPERTY);
   }
 
   return freebusy;
 }
 
 Journal *ICalFormatImpl::readJournal(icalcomponent *vjournal)
 {
   Journal *journal = new Journal;
 
   readIncidence(vjournal,journal);
 
   return journal;
 }
 
 Attendee *ICalFormatImpl::readAttendee(icalproperty *attendee)
 {
   icalparameter *p = 0;
 
   QString email = QString::fromUtf8(icalproperty_get_attendee(attendee));
 
   QString name;
   QString uid = QString::null;
   p = icalproperty_get_first_parameter(attendee,ICAL_CN_PARAMETER);
   if (p) {
     name = QString::fromUtf8(icalparameter_get_cn(p));
   } else {
   }
 
   bool rsvp=false;
   p = icalproperty_get_first_parameter(attendee,ICAL_RSVP_PARAMETER);
   if (p) {
     icalparameter_rsvp rsvpParameter = icalparameter_get_rsvp(p);
     if (rsvpParameter == ICAL_RSVP_TRUE) rsvp = true;
   }
 
   Attendee::PartStat status = Attendee::NeedsAction;
   p = icalproperty_get_first_parameter(attendee,ICAL_PARTSTAT_PARAMETER);
   if (p) {
     icalparameter_partstat partStatParameter = icalparameter_get_partstat(p);
     switch(partStatParameter) {
       default:
       case ICAL_PARTSTAT_NEEDSACTION:
         status = Attendee::NeedsAction;
         break;
       case ICAL_PARTSTAT_ACCEPTED:
         status = Attendee::Accepted;
         break;
       case ICAL_PARTSTAT_DECLINED:
         status = Attendee::Declined;
         break;
       case ICAL_PARTSTAT_TENTATIVE:
         status = Attendee::Tentative;
         break;
       case ICAL_PARTSTAT_DELEGATED:
         status = Attendee::Delegated;
         break;
       case ICAL_PARTSTAT_COMPLETED:
         status = Attendee::Completed;
         break;
       case ICAL_PARTSTAT_INPROCESS:
         status = Attendee::InProcess;
         break;
     }
   }
 
   Attendee::Role role = Attendee::ReqParticipant;
   p = icalproperty_get_first_parameter(attendee,ICAL_ROLE_PARAMETER);
   if (p) {
     icalparameter_role roleParameter = icalparameter_get_role(p);
     switch(roleParameter) {
       case ICAL_ROLE_CHAIR:
         role = Attendee::Chair;
         break;
       default:
       case ICAL_ROLE_REQPARTICIPANT:
         role = Attendee::ReqParticipant;
         break;
       case ICAL_ROLE_OPTPARTICIPANT:
         role = Attendee::OptParticipant;
         break;
       case ICAL_ROLE_NONPARTICIPANT:
         role = Attendee::NonParticipant;
         break;
     }
   }
 
   p = icalproperty_get_first_parameter(attendee,ICAL_X_PARAMETER);
   uid = icalparameter_get_xvalue(p);
   // This should be added, but there seems to be a libical bug here.
   /*while (p) {
    // if (icalparameter_get_xname(p) == "X-UID") {
     uid = icalparameter_get_xvalue(p);
     p = icalproperty_get_next_parameter(attendee,ICAL_X_PARAMETER);
   } */
 
   return new Attendee( name, email, rsvp, status, role, uid );
 }
 
 Attachment *ICalFormatImpl::readAttachment(icalproperty *attach)
 {
   icalattach *a = icalproperty_get_attach(attach);
   icalparameter_value v = ICAL_VALUE_NONE;
   icalparameter_encoding e = ICAL_ENCODING_NONE;
  
   Attachment *attachment = 0;
   /*
   icalparameter *vp = icalproperty_get_first_parameter(attach, ICAL_VALUE_PARAMETER);
   if (vp)
     v = icalparameter_get_value(vp);
 
   icalparameter *ep = icalproperty_get_first_parameter(attach, ICAL_ENCODING_PARAMETER);
   if (ep)
     e = icalparameter_get_encoding(ep);
   */
   int isurl = icalattach_get_is_url (a);
   if (isurl == 0)
       attachment = new Attachment((const char*)icalattach_get_data(a));
   else {
     attachment = new Attachment(QString(icalattach_get_url(a)));
   }
 
   icalparameter *p = icalproperty_get_first_parameter(attach, ICAL_FMTTYPE_PARAMETER);
   if (p)
     attachment->setMimeType(QString(icalparameter_get_fmttype(p)));
 
   return attachment;
 }
 #include <qtextcodec.h> 
 void ICalFormatImpl::readIncidence(icalcomponent *parent,Incidence *incidence)
 {
   readIncidenceBase(parent,incidence);
 
   icalproperty *p = icalcomponent_get_first_property(parent,ICAL_ANY_PROPERTY);
   bool readrec = false;
   const char *text;
   int intvalue;
   icaltimetype icaltime;
   icaldurationtype icalduration;
   struct icalrecurrencetype rectype;
   QStringList categories;
 
   while (p) {
     icalproperty_kind kind = icalproperty_isa(p);
     switch (kind) {
 
       case ICAL_CREATED_PROPERTY:
         icaltime = icalproperty_get_created(p);
         incidence->setCreated(readICalDateTime(icaltime));
         break;
 
       case ICAL_SEQUENCE_PROPERTY:  // sequence
         intvalue = icalproperty_get_sequence(p);
         incidence->setRevision(intvalue);
         break;
 
       case ICAL_LASTMODIFIED_PROPERTY:  // last modification date
         icaltime = icalproperty_get_lastmodified(p);
         incidence->setLastModified(readICalDateTime(icaltime));
         break;
 
       case ICAL_DTSTART_PROPERTY:  // start date and time
         icaltime = icalproperty_get_dtstart(p);
         if (icaltime.is_date) {
           incidence->setDtStart(QDateTime(readICalDate(icaltime),QTime(0,0,0)));
           incidence->setFloats(true);
         } else {
           incidence->setDtStart(readICalDateTime(icaltime));
         }
         break;
 
       case ICAL_DURATION_PROPERTY:  // start date and time
         icalduration = icalproperty_get_duration(p);
         incidence->setDuration(readICalDuration(icalduration));
         break;
 
       case ICAL_DESCRIPTION_PROPERTY:  // description
         text = icalproperty_get_description(p);
         incidence->setDescription(QString::fromUtf8(text));
         break;
 
       case ICAL_SUMMARY_PROPERTY:  // summary
           {
               text = icalproperty_get_summary(p);
               incidence->setSummary(QString::fromUtf8(text));
           }
         break;
        case ICAL_STATUS_PROPERTY:  // summary
         {
             if ( ICAL_STATUS_CANCELLED == icalproperty_get_status(p) )
                 incidence->setCancelled( true );
         }
         break;
 
       case ICAL_LOCATION_PROPERTY:  // location
         text = icalproperty_get_location(p);
         incidence->setLocation(QString::fromUtf8(text));
         break;
 
+      case ICAL_RECURRENCEID_PROPERTY:
+        icaltime = icalproperty_get_recurrenceid(p);
+        incidence->setRecurrenceID( readICalDateTime(icaltime) );
+        qDebug(" RecurrenceID %s",incidence->recurrenceID().toString().latin1() );
+        break;
 #if 0
   // status
   if ((vo = isAPropertyOf(vincidence, VCStatusProp)) != 0) {
     incidence->setStatus(s = fakeCString(vObjectUStringZValue(vo)));
     deleteStr(s);
   }
   else
     incidence->setStatus("NEEDS ACTION");
 #endif
 
       case ICAL_PRIORITY_PROPERTY:  // priority
         intvalue = icalproperty_get_priority(p);
         incidence->setPriority(intvalue);
         break;
 
       case ICAL_CATEGORIES_PROPERTY:  // categories
         text = icalproperty_get_categories(p);
         categories.append(QString::fromUtf8(text));
         break;
         //*******************************************
       case ICAL_RRULE_PROPERTY:
           // we do need (maybe )start datetime of incidence for recurrence
           // such that we can read recurrence only after we read incidence completely
           readrec = true;
           rectype = icalproperty_get_rrule(p);
         break;
 
       case ICAL_EXDATE_PROPERTY:
         icaltime = icalproperty_get_exdate(p);
         incidence->addExDate(readICalDate(icaltime));
         break;
 
     case ICAL_CLASS_PROPERTY: {
         int inttext = icalproperty_get_class(p);
         if (inttext == ICAL_CLASS_PUBLIC ) {
           incidence->setSecrecy(Incidence::SecrecyPublic);
         } else if (inttext == ICAL_CLASS_CONFIDENTIAL ) {
           incidence->setSecrecy(Incidence::SecrecyConfidential);
         } else {
           incidence->setSecrecy(Incidence::SecrecyPrivate);
         }
     }
         break;
 
       case ICAL_ATTACH_PROPERTY:  // attachments
         incidence->addAttachment(readAttachment(p));
         break;
  
       default:
 //        kdDebug(5800) << "ICALFormat::readIncidence(): Unknown property: " << kind
 //                  << endl;
         break;
     }
 
     p = icalcomponent_get_next_property(parent,ICAL_ANY_PROPERTY);
   }
   if ( readrec ) {
       readRecurrenceRule(rectype,incidence);
   }
   // kpilot stuff
 // TODO: move this application-specific code to kpilot
   QString kp = incidence->nonKDECustomProperty("X-PILOTID");
   if (!kp.isNull()) {
     incidence->setPilotId(kp.toInt());
   }
   kp = incidence->nonKDECustomProperty("X-PILOTSTAT");
   if (!kp.isNull()) {
     incidence->setSyncStatus(kp.toInt());
   }
 
 
   kp = incidence->nonKDECustomProperty("X-KOPIEXTID");
   if (!kp.isNull()) {
     incidence->setIDStr(kp);
   }
 
   // Cancel backwards compatibility mode for subsequent changes by the application
   incidence->recurrence()->setCompatVersion();
 
   // add categories
   incidence->setCategories(categories);
 
   // iterate through all alarms
   for (icalcomponent *alarm = icalcomponent_get_first_component(parent,ICAL_VALARM_COMPONENT);
        alarm;
        alarm = icalcomponent_get_next_component(parent,ICAL_VALARM_COMPONENT)) {
     readAlarm(alarm,incidence);
   }
 }
 
 void ICalFormatImpl::readIncidenceBase(icalcomponent *parent,IncidenceBase *incidenceBase)
 {
   icalproperty *p = icalcomponent_get_first_property(parent,ICAL_ANY_PROPERTY);
 
   while (p) {
     icalproperty_kind kind = icalproperty_isa(p);
     switch (kind) {
 
       case ICAL_UID_PROPERTY:  // unique id
         incidenceBase->setUid(QString::fromUtf8(icalproperty_get_uid(p)));
         break;
 
       case ICAL_ORGANIZER_PROPERTY:  // organizer
         incidenceBase->setOrganizer(QString::fromUtf8(icalproperty_get_organizer(p)));
         break;
 
       case ICAL_ATTENDEE_PROPERTY:  // attendee
         incidenceBase->addAttendee(readAttendee(p));
         break;
 
       default:
         break;
     }
 
     p = icalcomponent_get_next_property(parent,ICAL_ANY_PROPERTY);
   }
 
   // custom properties
   readCustomProperties(parent, incidenceBase);
 }
 
 void ICalFormatImpl::readCustomProperties(icalcomponent *parent,CustomProperties *properties)
 {
   QMap<QCString, QString> customProperties;
 
   icalproperty *p = icalcomponent_get_first_property(parent,ICAL_X_PROPERTY);
 
   while (p) {
     QString value = QString::fromUtf8(icalproperty_get_x(p));
     customProperties[icalproperty_get_x_name(p)] = value;
     //qDebug("ICalFormatImpl::readCustomProperties %s %s",value.latin1(), icalproperty_get_x_name(p) );
 
     p = icalcomponent_get_next_property(parent,ICAL_X_PROPERTY);
   }
 
   properties->setCustomProperties(customProperties);
 }
 
 void ICalFormatImpl::readRecurrenceRule(struct icalrecurrencetype rrule,Incidence *incidence)
 {
 //  kdDebug(5800) << "Read recurrence for " << incidence->summary() << endl;
 
   Recurrence *recur = incidence->recurrence();
   recur->setCompatVersion(mCalendarVersion);
   recur->unsetRecurs();
 
   struct icalrecurrencetype r = rrule;
 
   dumpIcalRecurrence(r);
   readRecurrence( r, recur, incidence);
 }
 
 void ICalFormatImpl::readRecurrence( const struct icalrecurrencetype &r, Recurrence* recur, Incidence *incidence)
 {
     int wkst;
     int index = 0;
     short day = 0;
     QBitArray qba(7);
     int frequ = r.freq;
     int interv = r.interval;
     // preprocessing for odd recurrence definitions
     
     if ( r.freq == ICAL_MONTHLY_RECURRENCE ) {
         if ( r.by_month[0] != ICAL_RECURRENCE_ARRAY_MAX) {
             interv = 12;
         }
     }
     if ( r.freq == ICAL_YEARLY_RECURRENCE ) {
         if ( r.by_month[0] != ICAL_RECURRENCE_ARRAY_MAX && r.by_day[0] != ICAL_RECURRENCE_ARRAY_MAX ) {
             frequ = ICAL_MONTHLY_RECURRENCE;
             interv = 12* r.interval;
         }
     }
   
     switch (frequ) {
     case ICAL_MINUTELY_RECURRENCE:
         if (!icaltime_is_null_time(r.until)) {
             recur->setMinutely(interv,readICalDateTime(r.until));
         } else {
             if (r.count == 0)
                 recur->setMinutely(interv,-1);
             else
                 recur->setMinutely(interv,r.count);
         }
         break;
     case ICAL_HOURLY_RECURRENCE:
         if (!icaltime_is_null_time(r.until)) {
             recur->setHourly(interv,readICalDateTime(r.until));
         } else {
             if (r.count == 0)
                 recur->setHourly(interv,-1);
             else
                 recur->setHourly(interv,r.count);
         }
         break;
     case ICAL_DAILY_RECURRENCE:
         if (!icaltime_is_null_time(r.until)) {
             recur->setDaily(interv,readICalDate(r.until));
         } else {
             if (r.count == 0)
                 recur->setDaily(interv,-1);
             else
                 recur->setDaily(interv,r.count);
         }
         break;
     case ICAL_WEEKLY_RECURRENCE:
         //      kdDebug(5800) << "WEEKLY_RECURRENCE" << endl;
         wkst = (r.week_start + 5)%7 + 1;
         if (!icaltime_is_null_time(r.until)) {
             recur->setWeekly(interv,qba,readICalDate(r.until),wkst);
         } else {
             if (r.count == 0)
                 recur->setWeekly(interv,qba,-1,wkst);
             else
                 recur->setWeekly(interv,qba,r.count,wkst);
         } 
         if ( r.by_day[0] == ICAL_RECURRENCE_ARRAY_MAX) {
             int wday = incidence->dtStart().date().dayOfWeek ()-1;
             //qDebug("weekly error found ");
             qba.setBit(wday);  
         } else {
             while((day = r.by_day[index++]) != ICAL_RECURRENCE_ARRAY_MAX) {
                 //        kdDebug(5800) << " " << day << endl;
                 qba.setBit((day+5)%7);    // convert from Sunday=1 to Monday=0
             }
         }
         break;
     case ICAL_MONTHLY_RECURRENCE:
        
         if (r.by_day[0] != ICAL_RECURRENCE_ARRAY_MAX) {
             if (!icaltime_is_null_time(r.until)) {
                 recur->setMonthly(Recurrence::rMonthlyPos,interv,
                                   readICalDate(r.until));
             } else {
                 if (r.count == 0)
                     recur->setMonthly(Recurrence::rMonthlyPos,interv,-1);
                 else
                     recur->setMonthly(Recurrence::rMonthlyPos,interv,r.count);
             }
             bool useSetPos = false;
             short pos = 0;
             while((day = r.by_day[index++]) != ICAL_RECURRENCE_ARRAY_MAX) {
                 //          kdDebug(5800) << "----a " << index << ": " << day << endl;
                 pos = icalrecurrencetype_day_position(day);
                 if (pos) {
                     day = icalrecurrencetype_day_day_of_week(day);
                     QBitArray ba(7);          // don't wipe qba
                     ba.setBit((day+5)%7);     // convert from Sunday=1 to Monday=0
                     recur->addMonthlyPos(pos,ba);
                 } else {
                     qba.setBit((day+5)%7);    // convert from Sunday=1 to Monday=0
                     useSetPos = true;
                 }
             }
             if (useSetPos) {
                 if (r.by_set_pos[0] != ICAL_RECURRENCE_ARRAY_MAX) {
diff --git a/libkcal/incidence.cpp b/libkcal/incidence.cpp
index f9e1e9e..dbc159c 100644
--- a/libkcal/incidence.cpp
+++ b/libkcal/incidence.cpp
@@ -1,428 +1,461 @@
 /*
     This file is part of libkcal.
     Copyright (c) 2001 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., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #include <kglobal.h>
 #include <klocale.h>
 #include <kdebug.h>
 
 #include "calformat.h"
 
 #include "incidence.h"
 #include "todo.h"
 
 using namespace KCal;
 
 Incidence::Incidence() :
   IncidenceBase(),
   mRelatedTo(0), mSecrecy(SecrecyPublic), mPriority(3)
 {
   mRecurrence = new Recurrence(this);
   mCancelled = false;
   recreate();
   mHasStartDate = true;
   mAlarms.setAutoDelete(true);
   mAttachments.setAutoDelete(true);
+  mHasRecurrenceID = false;
 }
 
 Incidence::Incidence( const Incidence &i ) : IncidenceBase( i )
 {
 // TODO: reenable attributes currently commented out.
   mRevision = i.mRevision;
   mCreated = i.mCreated;
   mDescription = i.mDescription;
   mSummary = i.mSummary;
   mCategories = i.mCategories;
 //  Incidence *mRelatedTo;          Incidence *mRelatedTo;
   mRelatedTo = 0;
   mRelatedToUid = i.mRelatedToUid;
 //  QPtrList<Incidence> mRelations;    QPtrList<Incidence> mRelations;
   mExDates = i.mExDates;
   mAttachments = i.mAttachments;
   mResources = i.mResources;
   mSecrecy = i.mSecrecy;
   mPriority = i.mPriority;
   mLocation = i.mLocation;
   mCancelled = i.mCancelled;
   mHasStartDate = i.mHasStartDate;
   QPtrListIterator<Alarm> it( i.mAlarms );
   const Alarm *a;
   while( (a = it.current()) ) {
     Alarm *b = new Alarm( *a );
     b->setParent( this );
     mAlarms.append( b );
 
     ++it;
   }
   mAlarms.setAutoDelete(true);
-
+  mHasRecurrenceID = i.mHasRecurrenceID;
+  mRecurrenceID = i.mRecurrenceID;
   mRecurrence = new Recurrence( *(i.mRecurrence), this );
 }
 
 Incidence::~Incidence()
 {
    
   Incidence *ev;
    QPtrList<Incidence> Relations = relations();
   for (ev=Relations.first();ev;ev=Relations.next()) {
     if (ev->relatedTo() == this) ev->setRelatedTo(0);
   } 
   if (relatedTo()) relatedTo()->removeRelation(this);
   delete mRecurrence; 
  
 }
+bool Incidence::hasRecurrenceID() const
+{
+    return mHasRecurrenceID;
+}
+
+void Incidence::setHasRecurrenceID( bool b )
+{
+    mHasRecurrenceID = b;
+}
+   
+void Incidence::setRecurrenceID(QDateTime d)
+{
+    mRecurrenceID = d;
+    mHasRecurrenceID = true;
+    updated(); 
+}
+QDateTime Incidence::recurrenceID () const
+{
+    return mRecurrenceID;
+}
 
 bool Incidence::cancelled() const
 {
     return mCancelled;
 }
 void Incidence::setCancelled( bool b )
 {
     mCancelled = b;
     updated();
 }
 bool Incidence::hasStartDate() const
 {
   return mHasStartDate;
 }
 
 void Incidence::setHasStartDate(bool f)
 {
   if (mReadOnly) return;
   mHasStartDate = f;
   updated();
 }
 
 // A string comparison that considers that null and empty are the same
 static bool stringCompare( const QString& s1, const QString& s2 )
 {
     if ( s1.isEmpty() && s2.isEmpty() )
         return true;
     return s1 == s2;
 }
 
 bool KCal::operator==( const Incidence& i1, const Incidence& i2 )
 {
   
     if( i1.alarms().count() != i2.alarms().count() ) {
         return false; // no need to check further
     }
     if ( i1.alarms().count() > 0 ) {
         if ( !( *(i1.alarms().first()) == *(i2.alarms().first())) ) 
             {
             qDebug("alarm not equal ");
             return false;
         }
     }
 #if 0
     QPtrListIterator<Alarm> a1( i1.alarms() );
     QPtrListIterator<Alarm> a2( i2.alarms() );
     for( ; a1.current() && a2.current(); ++a1, ++a2 ) {
         if( *a1.current() == *a2.current() ) {
             continue;
         }
         else {
             return false;
         }
     }
 #endif
   
+    if ( i1.hasRecurrenceID() == i2.hasRecurrenceID() ) {
+        if ( i1.hasRecurrenceID() ) {
+            if ( i1.recurrenceID() != i2.recurrenceID() )
+                return false;
+        }
+
+    } else {
+        return false;
+    }
+
     if ( ! operator==( (const IncidenceBase&)i1, (const IncidenceBase&)i2 ) )
         return false;
     if ( i1.hasStartDate() == i2.hasStartDate() ) {
         if ( i1.hasStartDate() ) {
             if ( i1.dtStart() != i2.dtStart() )
                 return false;
         }
     } else {
         return false;
     }
     if (!( *i1.recurrence() == *i2.recurrence()) ) {
         qDebug("recurrence is NOT equal ");
         return false;
     }
     return
         //  i1.created() == i2.created() &&
         stringCompare( i1.description(), i2.description() ) &&
         stringCompare( i1.summary(), i2.summary() ) &&
         i1.categories() == i2.categories() &&
         // no need to compare mRelatedTo
         stringCompare( i1.relatedToUid(), i2.relatedToUid() ) &&
         //      i1.relations() == i2.relations() &&
         i1.exDates() == i2.exDates() &&
         i1.attachments() == i2.attachments() &&
         i1.resources() == i2.resources() &&
         i1.secrecy() == i2.secrecy() &&
         i1.priority() == i2.priority() &&
+        i1.cancelled() == i2.cancelled() &&
         stringCompare( i1.location(), i2.location() );
 }
 
 Incidence* Incidence::recreateCloneException( QDate d  )
 {
     Incidence* newInc = clone();
     newInc->recreate();
     if ( doesRecur() ) {
         addExDate( d );
         newInc->recurrence()->unsetRecurs();
         int len = dtStart().secsTo( ((Event*)this)->dtEnd());
         QTime tim = dtStart().time();
         newInc->setDtStart( QDateTime(d, tim) );
         ((Event*)newInc)->setDtEnd( newInc->dtStart().addSecs( len ) );
     }
     return newInc;
 }
 
 void Incidence::recreate()
 {
   setCreated(QDateTime::currentDateTime());
 
   setUid(CalFormat::createUniqueId());
 
   setRevision(0);
   setIDStr( ":" );
   setLastModified(QDateTime::currentDateTime());
 }
 
 void Incidence::setReadOnly( bool readOnly )
 {
   IncidenceBase::setReadOnly( readOnly );
   recurrence()->setRecurReadOnly( readOnly);
 }
 
 void Incidence::setCreated(QDateTime created)
 {
   if (mReadOnly) return;
   mCreated = getEvenTime(created);
 }
 
 QDateTime Incidence::created() const
 {
   return mCreated;
 }
 
 void Incidence::setRevision(int rev)
 {
   if (mReadOnly) return;
   mRevision = rev;
 
   updated();
 }
 
 int Incidence::revision() const
 {
   return mRevision;
 }
 
 void Incidence::setDtStart(const QDateTime &dtStart)
 {
 
   QDateTime  dt = getEvenTime(dtStart);
   recurrence()->setRecurStart( dt);
   IncidenceBase::setDtStart( dt );
 }
 
 void Incidence::setDescription(const QString &description)
 {
   if (mReadOnly) return;
   mDescription = description;
   updated();
 }
 
 QString Incidence::description() const
 {
   return mDescription;
 }
 
 
 void Incidence::setSummary(const QString &summary)
 {
   if (mReadOnly) return;
   mSummary = summary;
   updated();
 }
 
 QString Incidence::summary() const
 {
   return mSummary;
 }
 
 void Incidence::setCategories(const QStringList &categories)
 {
   if (mReadOnly) return;
   mCategories = categories;
   updated();
 }
 
 // TODO: remove setCategories(QString) function
 void Incidence::setCategories(const QString &catStr)
 {
   if (mReadOnly) return;
   mCategories.clear();
 
   if (catStr.isEmpty()) return;
 
   mCategories = QStringList::split(",",catStr);
 
   QStringList::Iterator it;
   for(it = mCategories.begin();it != mCategories.end(); ++it) {
     *it = (*it).stripWhiteSpace();
   }
 
   updated();
 }
 
 QStringList Incidence::categories() const
 {
   return mCategories;
 }
 
 QString Incidence::categoriesStr()
 {
   return mCategories.join(",");
 }
 
 void Incidence::setRelatedToUid(const QString &relatedToUid)
 {
   if (mReadOnly) return;
   mRelatedToUid = relatedToUid;
 }
 
 QString Incidence::relatedToUid() const
 {
   return mRelatedToUid;
 }
 
 void Incidence::setRelatedTo(Incidence *relatedTo)
 {
     //qDebug("Incidence::setRelatedTo %d ", relatedTo);
     //qDebug("setRelatedTo(Incidence *relatedTo) %s %s", summary().latin1(), relatedTo->summary().latin1() );
   if (mReadOnly || mRelatedTo == relatedTo) return;
   if(mRelatedTo) {
       // updated();
     mRelatedTo->removeRelation(this);
   }
   mRelatedTo = relatedTo;
   if (mRelatedTo) mRelatedTo->addRelation(this);
 }
 
 Incidence *Incidence::relatedTo() const
 {
   return mRelatedTo;
 }
 
 QPtrList<Incidence> Incidence::relations() const
 {
   return mRelations;
 }
 
 void Incidence::addRelation(Incidence *event)
 {
   if( mRelations.findRef( event ) == -1 ) {
     mRelations.append(event);
     //updated();
   }
 }
 
 void Incidence::removeRelation(Incidence *event)
 {
   
   mRelations.removeRef(event); 
  
 //  if (event->getRelatedTo() == this) event->setRelatedTo(0);
 }
 
 bool Incidence::recursOn(const QDate &qd) const
 {
   if (recurrence()->recursOnPure(qd) && !isException(qd)) return true;
   else return false;
 }
 
 void Incidence::setExDates(const DateList &exDates)
 {
   if (mReadOnly) return;
   mExDates = exDates;
 
   recurrence()->setRecurExDatesCount(mExDates.count());
 
   updated();
 }
 
 void Incidence::addExDate(const QDate &date)
 {
   if (mReadOnly) return;
   mExDates.append(date);
 
   recurrence()->setRecurExDatesCount(mExDates.count());
 
   updated();
 }
 
 DateList Incidence::exDates() const
 {
   return mExDates;
 }
 
 bool Incidence::isException(const QDate &date) const
 {
   DateList::ConstIterator it;
   for( it = mExDates.begin(); it != mExDates.end(); ++it ) {
     if ( (*it) == date ) {
       return true;
     }
   }
 
   return false;
 }
 
 void Incidence::addAttachment(Attachment *attachment)
 {
   if (mReadOnly || !attachment) return;
   mAttachments.append(attachment);
   updated();
 }
 
 void Incidence::deleteAttachment(Attachment *attachment)
 {
   mAttachments.removeRef(attachment);
 }
 
 void Incidence::deleteAttachments(const QString& mime)
 {
   Attachment *at = mAttachments.first();
   while (at) {
     if (at->mimeType() == mime)
       mAttachments.remove();
     else
       at = mAttachments.next();
   }
 }
 
 QPtrList<Attachment> Incidence::attachments() const
 {
   return mAttachments;
 }
 
 QPtrList<Attachment> Incidence::attachments(const QString& mime) const
 {
   QPtrList<Attachment> attachments;
   QPtrListIterator<Attachment> it( mAttachments );
   Attachment *at;
   while ( (at = it.current()) ) {
     if (at->mimeType() == mime)
       attachments.append(at);
diff --git a/libkcal/incidence.h b/libkcal/incidence.h
index de2a381..38d2aaa 100644
--- a/libkcal/incidence.h
+++ b/libkcal/incidence.h
@@ -11,289 +11,298 @@
     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.
 */
 #ifndef INCIDENCE_H
 #define INCIDENCE_H
 //
 // Incidence - base class of calendaring components
 //
 
 #include <qdatetime.h>
 #include <qstringlist.h>
 #include <qvaluelist.h>
 
 #include "recurrence.h"
 #include "alarm.h"
 #include "attachment.h"
 #include "listbase.h"
 #include "incidencebase.h"
 
 namespace KCal {
 
 class Event;
 class Todo;
 class Journal;
 
 /**
   This class provides the base class common to all calendar components.
 */
 class Incidence : public IncidenceBase
 {
   public:
     /**
       This class provides the interface for a visitor of calendar components. It
       serves as base class for concrete visitors, which implement certain actions on
       calendar components. It allows to add functions, which operate on the concrete
       types of calendar components, without changing the calendar component classes.
     */
     class Visitor
     {
       public:
         /** Destruct Incidence::Visitor */
         virtual ~Visitor() {}
 
         /**
           Reimplement this function in your concrete subclass of IncidenceVisitor to perform actions
           on an Event object.
         */
         virtual bool visit(Event *) { return false; }
         /**
           Reimplement this function in your concrete subclass of IncidenceVisitor to perform actions
           on an Todo object.
         */
         virtual bool visit(Todo *) { return false; }
         /**
           Reimplement this function in your concrete subclass of IncidenceVisitor to perform actions
           on an Journal object.
         */
         virtual bool visit(Journal *) { return false; }
 
       protected:
         /** Constructor is protected to prevent direct creation of visitor base class. */
         Visitor() {}
     };
 
     /**
       This class implements a visitor for adding an Incidence to a resource
       supporting addEvent(), addTodo() and addJournal() calls.
     */
     template<class T>
     class AddVisitor : public Visitor
     {
       public:
         AddVisitor( T *r ) : mResource( r ) {}
         bool visit( Event *e ) { return mResource->addEvent( e ); }
         bool visit( Todo *t ) { return mResource->addTodo( t ); }
         bool visit( Journal *j ) { return mResource->addJournal( j ); }
 
       private:
         T *mResource;
     };
 
     /** enumeration for describing an event's secrecy. */
     enum { SecrecyPublic = 0, SecrecyPrivate = 1, SecrecyConfidential = 2 };
     typedef ListBase<Incidence> List;
     Incidence();
     Incidence(const Incidence &);
     ~Incidence();
 
     /**
       Accept IncidenceVisitor. A class taking part in the visitor mechanism has to
       provide this implementation:
       <pre>
         bool accept(Visitor &v) { return v.visit(this); }
       </pre>
     */
     virtual bool accept(Visitor &) { return false; }
 
     virtual Incidence *clone() = 0;
 
     virtual QDateTime getNextAlarmDateTime( bool * ok, int * offset ) const = 0;
     void setReadOnly( bool );
 
     /**
       Recreate event. The event is made a new unique event, but already stored
       event information is preserved. Sets uniquie id, creation date, last
       modification date and revision number.
     */
     void recreate();
     Incidence*  recreateCloneException(QDate);
 
     /** set creation date */
     void setCreated(QDateTime);
     /** return time and date of creation. */
     QDateTime created() const;
 
     /** set the number of revisions this event has seen */
     void setRevision(int rev);
     /** return the number of revisions this event has seen */
     int revision() const;
 
     /** Set starting date/time. */
     virtual void setDtStart(const QDateTime &dtStart);
     /** Return the incidence's ending date/time as a QDateTime. */
     virtual QDateTime dtEnd() const  { return QDateTime(); }
 
     /** sets the event's lengthy description. */
     void setDescription(const QString &description);
     /** returns a reference to the event's description. */
     QString description() const;
 
     /** sets the event's short summary. */
     void setSummary(const QString &summary);
     /** returns a reference to the event's summary. */
     QString summary() const;
 
     /** set event's applicable categories */
     void setCategories(const QStringList &categories);
     /** set event's categories based on a comma delimited string */
     void setCategories(const QString &catStr);
     /** return categories in a list */
     QStringList categories() const;
     /** return categories as a comma separated string */
     QString categoriesStr();
 
     /** point at some other event to which the event relates. This function should
      *  only be used when constructing a calendar before the related Event
      *  exists. */
     void setRelatedToUid(const QString &);
     /** what event does this one relate to? This function should
      *  only be used when constructing a calendar before the related Event
      *  exists. */
     QString relatedToUid() const;
     /** point at some other event to which the event relates */
     void setRelatedTo(Incidence *relatedTo);
     /** what event does this one relate to? */
     Incidence *relatedTo() const;
     /** All events that are related to this event */
     QPtrList<Incidence> relations() const;
     /** Add an event which is related to this event */
     void addRelation(Incidence *);
     /** Remove event that is related to this event */
     void removeRelation(Incidence *);
 
     /** returns the list of dates which are exceptions to the recurrence rule */
     DateList exDates() const;
     /** sets the list of dates which are exceptions to the recurrence rule */
     void setExDates(const DateList &_exDates);
     void setExDates(const char *dates);
     /** Add a date to the list of exceptions of the recurrence rule. */
     void addExDate(const QDate &date);
 
     /** returns true if there is an exception for this date in the recurrence
      rule set, or false otherwise. */
     bool isException(const QDate &qd) const;
 
     /** add attachment to this event */
     void addAttachment(Attachment *attachment);
     /** remove and delete a specific attachment */
     void deleteAttachment(Attachment *attachment);
     /** remove and delete all attachments with this mime type */
     void deleteAttachments(const QString& mime);
     /** return list of all associated attachments */
     QPtrList<Attachment> attachments() const;
     /** find a list of attachments with this mime type */
     QPtrList<Attachment> attachments(const QString& mime) const;
 
     /** sets the event's status the value specified.  See the enumeration
      * above for possible values. */
     void setSecrecy(int);
     /** return the event's secrecy. */
     int secrecy() const;
     /** return the event's secrecy in string format. */
     QString secrecyStr() const;
     /** return list of all availbale secrecy classes */
     static QStringList secrecyList();
     /** return human-readable name of secrecy class */
     static QString secrecyName(int);
 
     /** returns TRUE if the date specified is one on which the event will
      * recur. */
     bool recursOn(const QDate &qd) const;
 
     // VEVENT and VTODO, but not VJOURNAL (move to EventBase class?):
 
     /** set resources used, such as Office, Car, etc. */
     void setResources(const QStringList &resources);
     /** return list of current resources */
     QStringList resources() const;
 
     /** set the event's priority, 0 is undefined, 1 highest (decreasing order) */
     void setPriority(int priority);
     /** get the event's priority */
     int priority() const;
 
     /** All alarms that are associated with this incidence */
     QPtrList<Alarm> alarms() const;
     /** Create a new alarm which is associated with this incidence */
     Alarm* newAlarm();
     /** Add an alarm which is associated with this incidence */
     void addAlarm(Alarm*);
     /** Remove an alarm that is associated with this incidence */
     void removeAlarm(Alarm*);
     /** Remove all alarms that are associated with this incidence */
     void clearAlarms();
     /** return whether any alarm associated with this incidence is enabled */
     bool isAlarmEnabled() const;
 
     /**
       Return the recurrence rule associated with this incidence. If there is
       none, returns an appropriate (non-0) object.
     */
     Recurrence *recurrence() const;
     void setRecurrence(Recurrence * r);
     /**
       Forward to Recurrence::doesRecur().
     */
     ushort doesRecur() const;
 
     /** set the event's/todo's location. Do _not_ use it with journal */
     void setLocation(const QString &location);
     /** return the event's/todo's location. Do _not_ use it with journal */
     QString location() const;  
    /** returns TRUE or FALSE depending on whether the todo has a start date */
     bool hasStartDate() const;
     /** sets the event's hasStartDate value. */
     void setHasStartDate(bool f);
     QDateTime getNextOccurence( const QDateTime& dt, bool* yes ) const;
     bool cancelled() const;
     void setCancelled( bool b );
 
+    bool hasRecurrenceID() const;
+    void setHasRecurrenceID( bool b );
+    
+    void setRecurrenceID(QDateTime);
+    QDateTime recurrenceID () const;
+    
+
 protected:
     QPtrList<Alarm> mAlarms;
     QPtrList<Incidence> mRelations;
   private:
     int mRevision;
     bool mCancelled;
 
     // base components of jounal, event and todo
+    QDateTime mRecurrenceID;
+    bool mHasRecurrenceID;
     QDateTime mCreated;
     QString mDescription;
     QString mSummary;
     QStringList mCategories;
     Incidence *mRelatedTo;
     QString mRelatedToUid;
     DateList mExDates;
     QPtrList<Attachment> mAttachments;
     QStringList mResources;
     bool mHasStartDate;                  // if todo has associated start date
 
     int mSecrecy;
     int mPriority;                        // 1 = highest, 2 = less, etc.
 
     //QPtrList<Alarm> mAlarms;
     Recurrence *mRecurrence;
     
     QString mLocation;
 };
 
 bool operator==( const Incidence&, const Incidence& );
 
 }
 
 #endif