Many bugfixes

3 files changed, 83 insertions, 16 deletions

diff --git a/libkcal/alarm.cpp b/libkcal/alarm.cpp
index 29e6205..1fc7169 100644
--- a/libkcal/alarm.cpp
+++ b/libkcal/alarm.cpp
@@ -1,423 +1,457 @@
 /*
     This file is part of libkcal.
     Copyright (c) 1998 Preston Brown
     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 <kdebug.h>
 
 #include "incidence.h"
 #include "todo.h"
 
 #include "alarm.h"
 
 using namespace KCal;
 #include <qwidget.h>
 Alarm::Alarm(Incidence *parent)
  : mParent(parent),
    mType(Audio),
    mDescription(""),    // to make operator==() not fail
    mFile(""),           // to make operator==() not fail
    mMailSubject(""),    // to make operator==() not fail
    mAlarmSnoozeTime(5),
    mAlarmRepeatCount(0),
    mEndOffset(false),
    mHasTime(false),
    mAlarmEnabled(false)
 {
  
 }
 
 Alarm::~Alarm()
 {
 }
 
 bool Alarm::operator==( const Alarm& rhs ) const
 {
+
   if ( mType != rhs.mType ||
        mAlarmSnoozeTime != rhs.mAlarmSnoozeTime ||
        mAlarmRepeatCount != rhs.mAlarmRepeatCount ||
        mAlarmEnabled != rhs.mAlarmEnabled ||
        mHasTime != rhs.mHasTime)
     return false;
 
+#if 0
+    if ( mType != rhs.mType ) {
+
+        qDebug("aaa1 ");
+        return false;
+    }
+
+    if ( mAlarmSnoozeTime != rhs.mAlarmSnoozeTime  ) {
+
+        qDebug("aaa2 ");
+        return false;
+    }
+
+
+    if ( mAlarmRepeatCount != rhs.mAlarmRepeatCount ) {
+
+        qDebug("aaa3 ");
+        return false;
+    }
+
+    if ( mAlarmEnabled != rhs.mAlarmEnabled  ) {
+
+        qDebug("aaa4 ");
+        return false;
+    }
+
+    if ( mHasTime != rhs.mHasTime ) {
+
+        qDebug("aaa5 ");
+        return false;
+    }
+#endif
+  
+
   if (mHasTime) {
     if (mAlarmTime != rhs.mAlarmTime)
       return false;
   } else {
     if (mOffset != rhs.mOffset ||
         mEndOffset != rhs.mEndOffset)
       return false;
   }
-
   switch (mType) {
     case Display:
       return mDescription == rhs.mDescription;
 
     case Email:
       return mDescription == rhs.mDescription &&
              mMailAttachFiles == rhs.mMailAttachFiles &&
              mMailAddresses == rhs.mMailAddresses &&
              mMailSubject == rhs.mMailSubject;
 
     case Procedure:
       return mFile == rhs.mFile &&
              mDescription == rhs.mDescription;
 
     case Audio:
       return mFile == rhs.mFile;
 
     case Invalid:
       break;
   }
   return false;
 }
 
 void Alarm::setType(Alarm::Type type)
 {
   if (type == mType)
     return;
 
   switch (type) {
     case Display:
       mDescription = "";
       break;
     case Procedure:
       mFile = mDescription = "";
       break;
     case Audio:
       mFile = "";
       break;
     case Email:
       mMailSubject = mDescription = "";
       mMailAddresses.clear();
       mMailAttachFiles.clear();
       break;
     case Invalid:
       break;
     default:
       return;
   }
   mType = type;
   mParent->updated();
 }
 
 Alarm::Type Alarm::type() const
 {
   return mType;
 }
 
 void Alarm::setAudioAlarm(const QString &audioFile)
 {
   mType = Audio;
   mFile = audioFile;
   mParent->updated();
 }
 
 void Alarm::setAudioFile(const QString &audioFile)
 {
   if (mType == Audio) {
     mFile = audioFile;
     mParent->updated();
   }
 }
 
 QString Alarm::audioFile() const
 {
   return (mType == Audio) ? mFile : QString::null;
 }
 
 void Alarm::setProcedureAlarm(const QString &programFile, const QString &arguments)
 {
   mType = Procedure;
   mFile = programFile;
   mDescription = arguments;
   mParent->updated();
 }
 
 void Alarm::setProgramFile(const QString &programFile)
 {
   if (mType == Procedure) {
     mFile = programFile;
     mParent->updated();
   }
 }
 
 QString Alarm::programFile() const
 {
   return (mType == Procedure) ? mFile : QString::null;
 }
 
 void Alarm::setProgramArguments(const QString &arguments)
 {
   if (mType == Procedure) {
     mDescription = arguments;
     mParent->updated();
   }
 }
 
 QString Alarm::programArguments() const
 {
   return (mType == Procedure) ? mDescription : QString::null;
 }
 
 void Alarm::setEmailAlarm(const QString &subject, const QString &text,
                           const QValueList<Person> &addressees, const QStringList &attachments)
 {
   mType = Email;
   mMailSubject = subject;
   mDescription = text;
   mMailAddresses = addressees;
   mMailAttachFiles = attachments;
   mParent->updated();
 }
 
 void Alarm::setMailAddress(const Person &mailAddress)
 {
   if (mType == Email) {
     mMailAddresses.clear();
     mMailAddresses += mailAddress;
     mParent->updated();
   }
 }
 
 void Alarm::setMailAddresses(const QValueList<Person> &mailAddresses)
 {
   if (mType == Email) {
     mMailAddresses = mailAddresses;
     mParent->updated();
   }
 }
 
 void Alarm::addMailAddress(const Person &mailAddress)
 {
   if (mType == Email) {
     mMailAddresses += mailAddress;
     mParent->updated();
   }
 }
 
 QValueList<Person> Alarm::mailAddresses() const
 {
   return (mType == Email) ? mMailAddresses : QValueList<Person>();
 }
 
 void Alarm::setMailSubject(const QString &mailAlarmSubject)
 {
   if (mType == Email) {
     mMailSubject = mailAlarmSubject;
     mParent->updated();
   }
 }
 
 QString Alarm::mailSubject() const
 {
   return (mType == Email) ? mMailSubject : QString::null;
 }
 
 void Alarm::setMailAttachment(const QString &mailAttachFile)
 {
   if (mType == Email) {
     mMailAttachFiles.clear();
     mMailAttachFiles += mailAttachFile;
     mParent->updated();
   }
 }
 
 void Alarm::setMailAttachments(const QStringList &mailAttachFiles)
 {
   if (mType == Email) {
     mMailAttachFiles = mailAttachFiles;
     mParent->updated();
   }
 }
 
 void Alarm::addMailAttachment(const QString &mailAttachFile)
 {
   if (mType == Email) {
     mMailAttachFiles += mailAttachFile;
     mParent->updated();
   }
 }
 
 QStringList Alarm::mailAttachments() const
 {
   return (mType == Email) ? mMailAttachFiles : QStringList();
 }
 
 void Alarm::setMailText(const QString &text)
 {
   if (mType == Email) {
     mDescription = text;
     mParent->updated();
   }
 }
 
 QString Alarm::mailText() const
 {
   return (mType == Email) ? mDescription : QString::null;
 }
 
 void Alarm::setDisplayAlarm(const QString &text)
 {
   mType = Display;
   mDescription = text;
   mParent->updated();
 }
 
 void Alarm::setText(const QString &text)
 {
   if (mType == Display) {
     mDescription = text;
     mParent->updated();
   }
 }
 
 QString Alarm::text() const
 {
   return (mType == Display) ? mDescription : QString::null;
 }
 
 void Alarm::setTime(const QDateTime &alarmTime)
 {
   mAlarmTime = alarmTime;
   mHasTime = true;
 
   mParent->updated();
 }
 int Alarm::offset() 
 {
     if ( hasTime() ) {
         if (mParent->type()=="Todo") {
             Todo *t = static_cast<Todo*>(mParent);
             return  t->dtDue().secsTo( mAlarmTime ) ;
         } else
             return mParent->dtStart().secsTo( mAlarmTime ) ;
     }
     else
         {
             return mOffset.asSeconds();
         }
     
 }
 
 
 QDateTime Alarm::time() const
 {
   if ( hasTime() )
     return mAlarmTime;
   else
   {
     if (mParent->type()=="Todo") {
       Todo *t = static_cast<Todo*>(mParent);
       return mOffset.end( t->dtDue() );
     } else if (mEndOffset) {
       return mOffset.end( mParent->dtEnd() );
     } else {
       return mOffset.end( mParent->dtStart() );
     }
   }
 }
 
 bool Alarm::hasTime() const
 {
   return mHasTime;
 }
 
 void Alarm::setSnoozeTime(int alarmSnoozeTime)
 {
   mAlarmSnoozeTime = alarmSnoozeTime;
   mParent->updated();
 }
 
 int Alarm::snoozeTime() const
 {
   return mAlarmSnoozeTime;
 }
 
 void Alarm::setRepeatCount(int alarmRepeatCount)
 {
   kdDebug(5800) << "Alarm::setRepeatCount(): " << alarmRepeatCount << endl;
 
   mAlarmRepeatCount = alarmRepeatCount;
   mParent->updated();
 }
 
 int Alarm::repeatCount() const
 {
   kdDebug(5800) << "Alarm::repeatCount(): " << mAlarmRepeatCount << endl;
   return mAlarmRepeatCount;
 }
 
 void Alarm::toggleAlarm()
 {
   mAlarmEnabled = !mAlarmEnabled;
   mParent->updated();
 }
 
 void Alarm::setEnabled(bool enable)
 {
   mAlarmEnabled = enable;
   mParent->updated();
 }
 
 bool Alarm::enabled() const
 {
   return mAlarmEnabled;
 }
 
 void Alarm::setStartOffset( const Duration &offset )
 {
   mOffset = offset;
   mEndOffset = false;
   mHasTime = false;
   mParent->updated();
 }
 
 Duration Alarm::startOffset() const
 {
   return (mHasTime || mEndOffset) ? 0 : mOffset;
 }
 
 bool Alarm::hasStartOffset() const
 {
   return !mHasTime && !mEndOffset;
 }
 
 bool Alarm::hasEndOffset() const
 {
   return !mHasTime && mEndOffset;
 }
 
 void Alarm::setEndOffset( const Duration &offset )
 {
   mOffset = offset;
   mEndOffset = true;
   mHasTime = false;
   mParent->updated();
 }
 
 Duration Alarm::endOffset() const
 {
   return (mHasTime || !mEndOffset) ? 0 : mOffset;
 }
 
 void Alarm::setParent( Incidence *parent )
 {
   mParent = parent;
 }
diff --git a/libkcal/recurrence.cpp b/libkcal/recurrence.cpp
index dd74e10..e84f672 100644
--- a/libkcal/recurrence.cpp
+++ b/libkcal/recurrence.cpp
@@ -1,3373 +1,3405 @@
 /*
     This file is part of libkcal.
     Copyright (c) 1998 Preston Brown
     Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
     Copyright (c) 2002 David Jarvie <software@astrojar.org.uk>
 
     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 <limits.h>
 
 #include <kdebug.h>
 #include <kglobal.h>
 #include <klocale.h>
 
 #include "incidence.h"
 
 #include "recurrence.h"
 
 using namespace KCal;
 
 Recurrence::Feb29Type Recurrence::mFeb29YearlyDefaultType = Recurrence::rMar1;
 
 
 Recurrence::Recurrence(Incidence *parent, int compatVersion)
 : recurs(rNone),   // by default, it's not a recurring event
   rWeekStart(1),   // default is Monday
   rDays(7),
   mFloats(parent ? parent->doesFloat() : false),
   mRecurReadOnly(false),
   mRecurExDatesCount(0),
   mFeb29YearlyType(mFeb29YearlyDefaultType),
   mCompatVersion(compatVersion ? compatVersion : INT_MAX),
   mCompatRecurs(rNone),
   mCompatDuration(0),
   mParent(parent)
 {
   rMonthDays.setAutoDelete( true );
   rMonthPositions.setAutoDelete( true );
   rYearNums.setAutoDelete( true );
 }
 
 Recurrence::Recurrence(const Recurrence &r, Incidence *parent)
 : recurs(r.recurs),
   rWeekStart(r.rWeekStart),
   rDays(r.rDays.copy()),
   rFreq(r.rFreq),
   rDuration(r.rDuration),
   rEndDateTime(r.rEndDateTime),
   mRecurStart(r.mRecurStart),
   mFloats(r.mFloats),
   mRecurReadOnly(r.mRecurReadOnly),
   mRecurExDatesCount(r.mRecurExDatesCount),
   mFeb29YearlyType(r.mFeb29YearlyType),
   mCompatVersion(r.mCompatVersion),
   mCompatRecurs(r.mCompatRecurs),
   mCompatDuration(r.mCompatDuration),
   mParent(parent)
 {
   for (QPtrListIterator<rMonthPos> mp(r.rMonthPositions);  mp.current();  ++mp) {
     rMonthPos *tmp = new rMonthPos;
     tmp->rPos     = mp.current()->rPos;
     tmp->negative = mp.current()->negative;
     tmp->rDays    = mp.current()->rDays.copy();
     rMonthPositions.append(tmp);
   }
   for (QPtrListIterator<int> md(r.rMonthDays);  md.current();  ++md) {
     int *tmp = new int;
     *tmp = *md.current();
     rMonthDays.append(tmp);
   }
   for (QPtrListIterator<int> yn(r.rYearNums);  yn.current();  ++yn) {
     int *tmp = new int;
     *tmp = *yn.current();
     rYearNums.append(tmp);
   }
   rMonthDays.setAutoDelete( true );
   rMonthPositions.setAutoDelete( true );
   rYearNums.setAutoDelete( true );
 }
 
 Recurrence::~Recurrence()
 {
 }
 
 
 bool Recurrence::operator==( const Recurrence& r2 ) const
 {  
       
     // the following line is obvious
     if (  recurs == rNone &&  r2.recurs == rNone )
         return true;
     // we need the above line, because two non recurring events may
     // differ in the other settings, because one (or both) 
     // may be not initialized properly
+
     if ( recurs != r2.recurs
   ||   rFreq != r2.rFreq
   ||   rDuration != r2.rDuration
   ||   !rDuration && rEndDateTime != r2.rEndDateTime
   ||   mRecurStart != r2.mRecurStart
   ||   mFloats != r2.mFloats
   ||   mRecurReadOnly != r2.mRecurReadOnly
   ||   mRecurExDatesCount != r2.mRecurExDatesCount )
     return false;
   // no need to compare mCompat* and mParent
   // OK to compare the pointers
   switch ( recurs )
   {
     case rWeekly:
       return rDays == r2.rDays
       &&     rWeekStart == r2.rWeekStart;
-    case rMonthlyPos:
-      return rMonthPositions.count() == r2.rMonthPositions.count();
-    case rMonthlyDay:
-      return rMonthDays.count() == r2.rMonthDays.count();
-    case rYearlyPos:
-      return rYearNums.count() == r2.rYearNums.count()
-      &&     rMonthPositions.count() == r2.rMonthPositions.count();
-    case rYearlyMonth:
-        return rYearNums.count() == r2.rYearNums.count()
-        &&     mFeb29YearlyType == r2.mFeb29YearlyType;
-    case rYearlyDay:
-      return rYearNums == r2.rYearNums;
+  case rMonthlyPos: {
+      QPtrList<rMonthPos> MonthPositions = rMonthPositions;
+      QPtrList<rMonthPos> MonthPositions2 = r2.rMonthPositions;
+      if ( !MonthPositions.count() )
+          return false;
+      if ( !MonthPositions2.count() )
+          return false;
+      return MonthPositions.first()->rPos == MonthPositions2.first()->rPos;
+  }
+  case rMonthlyDay: {
+      QPtrList<int> MonthDays = rMonthDays ; 
+      QPtrList<int> MonthDays2 = r2.rMonthDays ;  
+      if ( !MonthDays.count() )
+          return false;
+      if ( !MonthDays2.count() )
+          return false; 
+      return *MonthDays.first() == *MonthDays2.first() ;
+  }
+  case rYearlyPos: {
+
+      QPtrList<int> YearNums = rYearNums;
+      QPtrList<int> YearNums2 = r2.rYearNums;
+      if ( *YearNums.first() != *YearNums2.first() )
+          return false;
+      QPtrList<rMonthPos> MonthPositions = rMonthPositions;
+      QPtrList<rMonthPos> MonthPositions2 = r2.rMonthPositions;
+      if ( !MonthPositions.count() )
+          return false;
+      if ( !MonthPositions2.count() )
+          return false;
+      return MonthPositions.first()->rPos == MonthPositions2.first()->rPos;
+     
+  }
+  case rYearlyMonth: {
+      QPtrList<int> YearNums = rYearNums;
+      QPtrList<int> YearNums2 = r2.rYearNums;
+      return ( *YearNums.first() == *YearNums2.first()  && mFeb29YearlyType == r2.mFeb29YearlyType);
+  }
+      case rYearlyDay: {
+      QPtrList<int> YearNums = rYearNums;
+      QPtrList<int> YearNums2 = r2.rYearNums;
+      return ( *YearNums.first() == *YearNums2.first() );
+      }
     case rNone:
     case rMinutely:
     case rHourly:
     case rDaily:
     default:
       return true;
   }
 }
 /*
 bool  Recurrence::compareLists( const QPtrList<int> &l1 ,const QPtrList<int> &l2)
 {
     if ( l1.count() != l2.count() )
         return false;
     int count = l1.count();
     int i;
     for ( i = 0; i < count ; ++i ) {
         // if ( l1.at(i) != l2.at(i)   )
         return false;
         qDebug("compüare ");
     }
     return true;
 }
 */
 QString Recurrence::recurrenceText() const
 {
     QString recurText = i18n("No");
     if ( recurs == Recurrence::rMinutely  )
         recurText = i18n("minutely");
     else if ( recurs == Recurrence::rHourly  )
         recurText = i18n("hourly");
     else if ( recurs == Recurrence::rDaily  )
         recurText = i18n("daily");
     else if ( recurs ==  Recurrence::rWeekly ) 
         recurText = i18n("weekly");
     else if ( recurs == Recurrence::rMonthlyPos  )
         recurText = i18n("monthly");
     else if ( recurs ==  Recurrence::rMonthlyDay )
         recurText = i18n("day-monthly");
     else if ( recurs ==  Recurrence::rYearlyMonth )
         recurText = i18n("month-yearly");
     else if ( recurs ==  Recurrence::rYearlyDay )
         recurText = i18n("day-yearly");
     else if ( recurs ==  Recurrence::rYearlyPos )
         recurText = i18n("position-yearly");
     return recurText;
 }
 
 void Recurrence::setCompatVersion(int version)
 {
   mCompatVersion = version ? version : INT_MAX;
 }
 
 ushort Recurrence::doesRecur() const
 {
   return recurs;
 }
 
 bool Recurrence::recursOnPure(const QDate &qd) const
 {
   switch(recurs) {
     case rMinutely:
       return recursSecondly(qd, rFreq*60);
     case rHourly:
       return recursSecondly(qd, rFreq*3600);
     case rDaily:
       return recursDaily(qd);
     case rWeekly:
       return recursWeekly(qd);
     case rMonthlyPos:
     case rMonthlyDay:
       return recursMonthly(qd);
     case rYearlyMonth:
       return recursYearlyByMonth(qd);
     case rYearlyDay:
       return recursYearlyByDay(qd);
     case rYearlyPos:
       return recursYearlyByPos(qd);
     default:
         return false;
     case rNone:
       return false;
   } // case
   return false;
 }
 
 bool Recurrence::recursAtPure(const QDateTime &dt) const
 {
   switch(recurs) {
   case rMinutely:
     return recursMinutelyAt(dt, rFreq);
   case rHourly:
     return recursMinutelyAt(dt, rFreq*60);
   default:
     if (dt.time() != mRecurStart.time())
       return false;
     switch(recurs) {
       case rDaily:
         return recursDaily(dt.date());
       case rWeekly:
         return recursWeekly(dt.date());
       case rMonthlyPos:
       case rMonthlyDay:
         return recursMonthly(dt.date());
       case rYearlyMonth:
         return recursYearlyByMonth(dt.date());
       case rYearlyDay:
         return recursYearlyByDay(dt.date());
       case rYearlyPos:
         return recursYearlyByPos(dt.date());
       default:
           return false;
       case rNone:
         return false;
     }
   } // case
   return false;
 }
 
 QDate Recurrence::endDate() const
 {
   int count = 0;
   QDate end;
   if (recurs != rNone) {
     if (rDuration < 0)
       return QDate();    // infinite recurrence
     if (rDuration == 0)
       return rEndDateTime.date();
 
     // The end date is determined by the recurrence count
     QDate dStart = mRecurStart.date();
     switch (recurs)
     {
     case rMinutely:
       return mRecurStart.addSecs((rDuration-1+mRecurExDatesCount)*rFreq*60).date();
     case rHourly:
       return mRecurStart.addSecs((rDuration-1+mRecurExDatesCount)*rFreq*3600).date();
     case rDaily:
       return dStart.addDays((rDuration-1+mRecurExDatesCount)*rFreq);
 
     case rWeekly:
       count = weeklyCalc(END_DATE_AND_COUNT, end);
       break;
     case rMonthlyPos:
     case rMonthlyDay:
       count = monthlyCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyMonth:
       count = yearlyMonthCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyDay:
       count = yearlyDayCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyPos:
       count = yearlyPosCalc(END_DATE_AND_COUNT, end);
       break;
     default:
       // catch-all.  Should never get here.
       kdDebug(5800) << "Control should never reach here in endDate()!" << endl;
       break;
     }
   }
   if (!count)
     return QDate();     // error - there is no recurrence
   return end;
 }
 
 QDateTime Recurrence::endDateTime() const
 {
   int count = 0;
   QDate end;
   if (recurs != rNone) {
     if (rDuration < 0)
       return QDateTime();    // infinite recurrence
     if (rDuration == 0)
       return rEndDateTime;
 
     // The end date is determined by the recurrence count
     QDate dStart = mRecurStart.date();
     switch (recurs)
     {
     case rMinutely:
       return mRecurStart.addSecs((rDuration-1+mRecurExDatesCount)*rFreq*60);
     case rHourly:
       return mRecurStart.addSecs((rDuration-1+mRecurExDatesCount)*rFreq*3600);
     case rDaily:
       return dStart.addDays((rDuration-1+mRecurExDatesCount)*rFreq);
 
     case rWeekly:
       count = weeklyCalc(END_DATE_AND_COUNT, end);
       break;
     case rMonthlyPos:
     case rMonthlyDay:
       count = monthlyCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyMonth:
       count = yearlyMonthCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyDay:
       count = yearlyDayCalc(END_DATE_AND_COUNT, end);
       break;
     case rYearlyPos:
       count = yearlyPosCalc(END_DATE_AND_COUNT, end);
       break;
     default:
       // catch-all.  Should never get here.
       kdDebug(5800) << "Control should never reach here in endDate()!" << endl;
       break;
     }
   }
   if (!count)
     return QDateTime();     // error - there is no recurrence
   return QDateTime(end, mRecurStart.time());
 }
 
 int Recurrence::durationTo(const QDate &date) const
 {
   QDate d = date;
   return recurCalc(COUNT_TO_DATE, d);
 }
 
 int Recurrence::durationTo(const QDateTime &datetime) const
 {
   QDateTime dt = datetime;
   return recurCalc(COUNT_TO_DATE, dt);
 }
 
 void Recurrence::unsetRecurs()
 {
   if (mRecurReadOnly) return;
   recurs = rNone;
   rMonthPositions.clear();
   rMonthDays.clear();
   rYearNums.clear();
 }
 
 void Recurrence::setRecurStart(const QDateTime &start)
 {
   mRecurStart = start;
   mFloats = false;
   switch (recurs)
   {
     case rMinutely:
     case rHourly:
       break;
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos:
     default:
       rEndDateTime.setTime(start.time());
       break;
   }
 }
 
 void Recurrence::setRecurStart(const QDate &start)
 {
   mRecurStart.setDate(start);
   mRecurStart.setTime(QTime(0,0,0));
   switch (recurs)
   {
     case rMinutely:
     case rHourly:
       break;
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos:
     default:
       mFloats = true;
       break;
   }
 }
 
 void Recurrence::setFloats(bool f)
 {
   switch (recurs)
   {
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos:
       break;
     case rMinutely:
     case rHourly:
     default:
       return;     // can't set sub-daily to floating
   }
   mFloats = f;
   if (f) {
     mRecurStart.setTime(QTime(0,0,0));
     rEndDateTime.setTime(QTime(0,0,0));
   }
 }
 
 int Recurrence::frequency() const
 {
   return rFreq;
 }
 
 int Recurrence::duration() const
 {
   return rDuration;
 }
 
 void Recurrence::setDuration(int _rDuration)
 {
   if (mRecurReadOnly) return;
   if (_rDuration > 0) {
     rDuration = _rDuration;
     // Compatibility mode is only needed when reading the calendar in ICalFormatImpl,
     // so explicitly setting the duration means no backwards compatibility is needed.
     mCompatDuration = 0;
   }
 }
 
 QString Recurrence::endDateStr(bool shortfmt) const
 {
   return KGlobal::locale()->formatDate(rEndDateTime.date(),shortfmt);
 }
 
 const QBitArray &Recurrence::days() const
 {
   return rDays;
 }
 
 const QPtrList<Recurrence::rMonthPos> &Recurrence::monthPositions() const
 {
   return rMonthPositions;
 }
 
 const QPtrList<Recurrence::rMonthPos> &Recurrence::yearMonthPositions() const
 {
   return rMonthPositions;
 }
 
 const QPtrList<int> &Recurrence::monthDays() const
 {
   return rMonthDays;
 }
 
 void Recurrence::setMinutely(int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   setDailySub(rMinutely, _rFreq, _rDuration);
 }
 
 void Recurrence::setMinutely(int _rFreq, const QDateTime &_rEndDateTime)
 {
   if (mRecurReadOnly) return;
   rEndDateTime = _rEndDateTime;
   setDailySub(rMinutely, _rFreq, 0);
 }
 
 void Recurrence::setHourly(int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   setDailySub(rHourly, _rFreq, _rDuration);
 }
 
 void Recurrence::setHourly(int _rFreq, const QDateTime &_rEndDateTime)
 {
   if (mRecurReadOnly) return;
   rEndDateTime = _rEndDateTime;
   setDailySub(rHourly, _rFreq, 0);
 }
 
 void Recurrence::setDaily(int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   setDailySub(rDaily, _rFreq, _rDuration);
 }
 
 void Recurrence::setDaily(int _rFreq, const QDate &_rEndDate)
 {
   if (mRecurReadOnly) return;
   rEndDateTime.setDate(_rEndDate);
   rEndDateTime.setTime(mRecurStart.time());
   setDailySub(rDaily, _rFreq, 0);
 }
 
 void Recurrence::setWeekly(int _rFreq, const QBitArray &_rDays,
                                int _rDuration, int _rWeekStart)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   recurs = rWeekly;
 
   rFreq = _rFreq;
   rDays = _rDays;
   rWeekStart = _rWeekStart;
   rDuration = _rDuration;
   if (mCompatVersion < 310 && _rDuration > 0) {
     // Backwards compatibility for KDE < 3.1.
     // rDuration was set to the number of time periods to recur,
     // with week start always on a Monday.
     // Convert this to the number of occurrences.
     mCompatDuration = _rDuration;
     int weeks = ((mCompatDuration-1+mRecurExDatesCount)*7) + (7 - mRecurStart.date().dayOfWeek());
     QDate end(mRecurStart.date().addDays(weeks * rFreq));
     rDuration = INT_MAX;    // ensure that weeklyCalc() does its job correctly
     rDuration = weeklyCalc(COUNT_TO_DATE, end);
   } else {
     mCompatDuration = 0;
   }
   rMonthPositions.clear();
   rMonthDays.clear();
   if (mParent) mParent->updated();
 }
 
 void Recurrence::setWeekly(int _rFreq, const QBitArray &_rDays,
                                const QDate &_rEndDate, int _rWeekStart)
 {
   if (mRecurReadOnly) return;
   recurs = rWeekly;
 
   rFreq = _rFreq;
   rDays = _rDays;
   rWeekStart = _rWeekStart;
   rEndDateTime.setDate(_rEndDate);
   rEndDateTime.setTime(mRecurStart.time());
   rDuration = 0; // set to 0 because there is an end date
   mCompatDuration = 0;
   rMonthPositions.clear();
   rMonthDays.clear();
   rYearNums.clear();
   if (mParent) mParent->updated();
 }
 
 void Recurrence::setMonthly(short type, int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   recurs = type;
 
   rFreq = _rFreq;
   rDuration = _rDuration;
   if (mCompatVersion < 310)
     mCompatDuration = (_rDuration > 0) ? _rDuration : 0;
   rYearNums.clear();
   if (mParent) mParent->updated();
 }
 
 void Recurrence::setMonthly(short type, int _rFreq,
                             const QDate &_rEndDate)
 {
   if (mRecurReadOnly) return;
   recurs = type;
 
   rFreq = _rFreq;
   rEndDateTime.setDate(_rEndDate);
   rEndDateTime.setTime(mRecurStart.time());
   rDuration = 0; // set to 0 because there is an end date
   mCompatDuration = 0;
   rYearNums.clear();
   if (mParent) mParent->updated();
 }
 
 void Recurrence::addMonthlyPos(short _rPos, const QBitArray &_rDays)
 {
   if (recurs == rMonthlyPos)
     addMonthlyPos_(_rPos, _rDays);
 }
 
 void Recurrence::addMonthlyPos_(short _rPos, const QBitArray &_rDays)
 {
   if (mRecurReadOnly
   ||  _rPos == 0 || _rPos > 5 || _rPos < -5)    // invalid week number
     return;
 
   for (rMonthPos* it = rMonthPositions.first();  it;  it = rMonthPositions.next()) {
     int itPos = it->negative ? -it->rPos : it->rPos;
     if (_rPos == itPos) {
       // This week is already in the list.
       // Combine the specified days with those in the list.
       it->rDays |= _rDays;
       if (mParent) mParent->updated();
       return;
     }
   }
   // Add the new position to the list
   rMonthPos *tmpPos = new rMonthPos;
   if (_rPos > 0) {
     tmpPos->rPos = _rPos;
     tmpPos->negative = false;
   } else {
     tmpPos->rPos = -_rPos; // take abs()
     tmpPos->negative = true;
   }
   tmpPos->rDays = _rDays;
   tmpPos->rDays.detach();
   rMonthPositions.append(tmpPos);
 
   if (mCompatVersion < 310 && mCompatDuration > 0) {
     // Backwards compatibility for KDE < 3.1.
     // rDuration was set to the number of time periods to recur.
     // Convert this to the number of occurrences.
     int monthsAhead = (mCompatDuration-1+mRecurExDatesCount) * rFreq;
     int month = mRecurStart.date().month() - 1 + monthsAhead;
     QDate end(mRecurStart.date().year() + month/12, month%12 + 1, 31);
     rDuration = INT_MAX;    // ensure that recurCalc() does its job correctly
     rDuration = recurCalc(COUNT_TO_DATE, end);
   }
 
   if (mParent) mParent->updated();
 }
 
 void Recurrence::addMonthlyDay(short _rDay)
 {
   if (mRecurReadOnly || (recurs != rMonthlyDay && recurs != rYearlyMonth)
   ||  _rDay == 0 || _rDay > 31 || _rDay < -31)   // invalid day number
     return;
   for (int* it = rMonthDays.first();  it;  it = rMonthDays.next()) {
     if (_rDay == *it)
       return;        // this day is already in the list - avoid duplication
   }
   int *tmpDay = new int;
   *tmpDay = _rDay;
   rMonthDays.append(tmpDay);
 
   if (mCompatVersion < 310 && mCompatDuration > 0) {
     // Backwards compatibility for KDE < 3.1.
     // rDuration was set to the number of time periods to recur.
     // Convert this to the number of occurrences.
     int monthsAhead = (mCompatDuration-1+mRecurExDatesCount) * rFreq;
     int month = mRecurStart.date().month() - 1 + monthsAhead;
     QDate end(mRecurStart.date().year() + month/12, month%12 + 1, 31);
     rDuration = INT_MAX;    // ensure that recurCalc() does its job correctly
     rDuration = recurCalc(COUNT_TO_DATE, end);
   }
 
   if (mParent) mParent->updated();
 }
 
 void Recurrence::setYearly(int type, int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   if (mCompatVersion < 310)
     mCompatDuration = (_rDuration > 0) ? _rDuration : 0;
   setYearly_(type, mFeb29YearlyDefaultType, _rFreq, _rDuration);
 }
 
 void Recurrence::setYearly(int type, int _rFreq, const QDate &_rEndDate)
 {
   if (mRecurReadOnly) return;
   rEndDateTime.setDate(_rEndDate);
   rEndDateTime.setTime(mRecurStart.time());
   mCompatDuration = 0;
   setYearly_(type, mFeb29YearlyDefaultType, _rFreq, 0);
 }
 
 void Recurrence::setYearlyByDate(Feb29Type type, int _rFreq, int _rDuration)
 {
   if (mRecurReadOnly || _rDuration == 0 || _rDuration < -1)
     return;
   if (mCompatVersion < 310)
     mCompatDuration = (_rDuration > 0) ? _rDuration : 0;
   setYearly_(rYearlyMonth, type, _rFreq, _rDuration);
 }
 
 void Recurrence::setYearlyByDate(Feb29Type type, int _rFreq, const QDate &_rEndDate)
 {
   if (mRecurReadOnly) return;
   rEndDateTime.setDate(_rEndDate);
   rEndDateTime.setTime(mRecurStart.time());
   mCompatDuration = 0;
   setYearly_(rYearlyMonth, type, _rFreq, 0);
 }
 
 void Recurrence::addYearlyMonthPos(short _rPos, const QBitArray &_rDays)
 {
   if (recurs == rYearlyPos)
     addMonthlyPos_(_rPos, _rDays);
 }
 
 const QPtrList<int> &Recurrence::yearNums() const
 {
   return rYearNums;
 }
 void Recurrence::addYearlyMonth(short _rPos )
 { 
     if (mRecurReadOnly  ||  recurs != rYearlyMonth)    // invalid day/month number
     return;
   rMonthPos *tmpPos = new rMonthPos;
   if ( _rPos > 0) {
     tmpPos->rPos = _rPos;
     tmpPos->negative = false;
   } else {
     tmpPos->rPos = -_rPos; // take abs()
     tmpPos->negative = true;
   }
   rMonthPositions.append(tmpPos);
 }
 void Recurrence::addYearlyNum(short _rNum)
 {
   if (mRecurReadOnly
   ||  (recurs != rYearlyMonth && recurs != rYearlyDay && recurs != rYearlyPos)
   ||  _rNum <= 0)    // invalid day/month number
     return;
 
   if (mCompatVersion < 310 && mCompatRecurs == rYearlyDay) {
     // Backwards compatibility for KDE < 3.1.
     // Dates were stored as day numbers, with a fiddle to take account of leap years.
     // Convert the day number to a month.
     if (_rNum <= 0 || _rNum > 366 || (_rNum == 366 && mRecurStart.date().daysInYear() < 366))
       return;     // invalid day number
     _rNum = QDate(mRecurStart.date().year(), 1, 1).addDays(_rNum - 1).month();
   } else
   if ((recurs == rYearlyMonth || recurs == rYearlyPos) && _rNum > 12
   ||  recurs == rYearlyDay && _rNum > 366)
     return;     // invalid day number
 
   uint i = 0;
   for (int* it = rYearNums.first();  it && _rNum >= *it;  it = rYearNums.next()) {
     if (_rNum == *it)
       return;        // this day/month is already in the list - avoid duplication
     ++i;
   }
 
   int *tmpNum = new int;
   *tmpNum = _rNum;
   rYearNums.insert(i, tmpNum);   // insert the day/month in a sorted position
 
   if (mCompatVersion < 310 && mCompatDuration > 0) {
     // Backwards compatibility for KDE < 3.1.
     // rDuration was set to the number of time periods to recur.
     // Convert this to the number of occurrences.
     QDate end(mRecurStart.date().year() + (mCompatDuration-1+mRecurExDatesCount)*rFreq, 12, 31);
     rDuration = INT_MAX;    // ensure that recurCalc() does its job correctly
     rDuration = recurCalc(COUNT_TO_DATE, end);
   }
 
   if (mParent) mParent->updated();
 }
 
 
 QDateTime Recurrence::getNextDateTime(const QDateTime &preDateTime, bool *last) const
 {  
     if (last)
         *last = false;
   int freq;
   switch (recurs)
   {
     case rMinutely:
       freq = rFreq * 60;
       break;
     case rHourly:
       freq = rFreq * 3600;
       break;
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos: {
       QDate preDate = preDateTime.date();
       if (!mFloats && mRecurStart.time() > preDateTime.time())
         preDate = preDate.addDays(-1);
       return QDateTime(getNextDateNoTime(preDate, last), mRecurStart.time());
     }
     default:
       return QDateTime();
   }
 
   // It's a sub-daily recurrence
   if (preDateTime < mRecurStart)
     return mRecurStart;
   int count = mRecurStart.secsTo(preDateTime) / freq + 2;
   if (rDuration > 0) {
     if (count > rDuration)
       return QDateTime();
     if (last && count == rDuration)
       *last = true;
   }
   QDateTime endtime = mRecurStart.addSecs((count - 1)*freq);
   if (rDuration == 0) {
     if (endtime > rEndDateTime)
       return QDateTime();
     if (last && endtime == rEndDateTime)
       *last = true;
   }
   return endtime;
 }
 
 QDate Recurrence::getNextDate(const QDate &preDate, bool *last) const
 { 
     if (last)
         *last = false;
     switch (recurs)
   {
     case rMinutely:
     case rHourly:
       return getNextDateTime(QDateTime(preDate, QTime(23,59,59)), last).date();
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos:
       return getNextDateNoTime(preDate, last);
     default:
       return QDate();
   }
 }
 
 
 QDateTime Recurrence::getPreviousDateTime(const QDateTime &afterDateTime, bool *last) const
 {
     if (last)
         *last = false;
   int freq;
   switch (recurs)
   {
     case rMinutely:
       freq = rFreq * 60;
       break;
     case rHourly:
       freq = rFreq * 3600;
       break;
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos: {
       QDate afterDate = afterDateTime.date();
       if (!mFloats && mRecurStart.time() < afterDateTime.time())
         afterDate = afterDate.addDays(1);
       return QDateTime(getPreviousDateNoTime(afterDate, last), mRecurStart.time());
     }
     default:
       return QDateTime();
   }
 
   // It's a sub-daily recurrence
   if (afterDateTime <= mRecurStart)
     return QDateTime();
   int count = (mRecurStart.secsTo(afterDateTime) - 1) / freq + 1;
   if (rDuration > 0) {
     if (count > rDuration)
       count = rDuration;
     if (last && count == rDuration)
       *last = true;
   }
   QDateTime endtime = mRecurStart.addSecs((count - 1)*freq);
   if (rDuration == 0) {
     if (endtime > rEndDateTime)
       endtime = rEndDateTime;
     if (last && endtime == rEndDateTime)
       *last = true;
   }
   return endtime;
 }
 
 QDate Recurrence::getPreviousDate(const QDate &afterDate, bool *last) const
 {
   if (last)
         *last = false;
   switch (recurs)
   {
     case rMinutely:
     case rHourly:
       return getPreviousDateTime(QDateTime(afterDate, QTime(0,0,0)), last).date();
     case rDaily:
     case rWeekly:
     case rMonthlyPos:
     case rMonthlyDay:
     case rYearlyMonth:
     case rYearlyDay:
     case rYearlyPos:
       return getPreviousDateNoTime(afterDate, last);
     default:
       return QDate();
   }
 }
 
 
 /***************************** PROTECTED FUNCTIONS ***************************/
 
 bool Recurrence::recursSecondly(const QDate &qd, int secondFreq) const
 {
   if ((qd >= mRecurStart.date()) &&
       ((rDuration > 0) && (qd <= endDate()) ||
        ((rDuration == 0) && (qd <= rEndDateTime.date())) ||
        (rDuration == -1))) {
     // The date queried falls within the range of the event.
     if (secondFreq < 24*3600)
       return true;      // the event recurs at least once each day
     int after = mRecurStart.secsTo(QDateTime(qd));
     if (after / secondFreq != (after + 24*3600) / secondFreq)
       return true;
   }
   return false;
 }
 
 bool Recurrence::recursMinutelyAt(const QDateTime &dt, int minuteFreq) const
 {
   if ((dt >= mRecurStart) &&
       ((rDuration > 0) && (dt <= endDateTime()) ||
        ((rDuration == 0) && (dt <= rEndDateTime)) ||
        (rDuration == -1))) {
     // The time queried falls within the range of the event.
     if (((mRecurStart.secsTo(dt) / 60) % minuteFreq) == 0)
       return true;
   }
   return false;
 }
 
 bool Recurrence::recursDaily(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   if ((dStart.daysTo(qd) % rFreq) == 0) {
     // The date is a day which recurs
     if (qd >= dStart
     &&  ((rDuration > 0 && qd <= endDate()) ||
          (rDuration == 0 && qd <= rEndDateTime.date()) ||
          rDuration == -1)) {
       // The date queried falls within the range of the event.
       return true;
     }
   }
   return false;
 }
 
 bool Recurrence::recursWeekly(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   if ((dStart.daysTo(qd)/7) % rFreq == 0) {
     // The date is in a week which recurs
     if (qd >= dStart
     && ((rDuration > 0 && qd <= endDate()) ||
         (rDuration == 0 && qd <= rEndDateTime.date()) ||
         rDuration == -1)) {
       // The date queried falls within the range of the event.
       // check if the bits set match today.
       int i = qd.dayOfWeek()-1;
       if (rDays.testBit((uint) i))
         return true;
     }
   }
   return false;
 }
 
 bool Recurrence::recursMonthly(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   int year  = qd.year();
   int month = qd.month();
   int day   = qd.day();
   // calculate how many months ahead this date is from the original
   // event's date
   int monthsAhead = (year - dStart.year()) * 12 + (month - dStart.month());
   if ((monthsAhead % rFreq) == 0) {
     // The date is in a month which recurs
     if (qd >= dStart
     &&  ((rDuration > 0 && qd <= endDate()) ||
          (rDuration == 0 && qd <= rEndDateTime.date()) ||
          rDuration == -1)) {
       // The date queried falls within the range of the event.
       QValueList<int> days;
       int daysInMonth = qd.daysInMonth();
       if (recurs == rMonthlyDay)
         getMonthlyDayDays(days, daysInMonth);
       else if (recurs == rMonthlyPos)
         getMonthlyPosDays(days, daysInMonth, QDate(year, month, 1).dayOfWeek());
       for (QValueList<int>::Iterator it = days.begin();  it != days.end();  ++it) {
         if (*it == day)
           return true;
       }
       // no dates matched
     }
   }
   return false;
 }
 
 bool Recurrence::recursYearlyByMonth(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   int startDay = dStart.day();
   int qday     = qd.day();
   int qmonth   = qd.month();
   int qyear    = qd.year();
   bool match = (qday == startDay);
   if (!match && startDay == 29 && dStart.month() == 2) {
     // It's a recurrence on February 29th
     switch (mFeb29YearlyType) {
       case rFeb28:
         if (qday == 28 && qmonth == 2 && !QDate::leapYear(qyear))
           match = true;
         break;
       case rMar1:
         if (qday == 1 && qmonth == 3 && !QDate::leapYear(qyear)) {
           qmonth = 2;
           match = true;
         }
         break;
       case rFeb29:
         break;
     }
   }
 
   if (match) {
     // The day of the month matches. Calculate how many years ahead
     // this date is from the original event's date.
     int yearsAhead = (qyear - dStart.year());
     if (yearsAhead % rFreq == 0) {
       // The date is in a year which recurs
       if (qd >= dStart
       &&  ((rDuration > 0 && qd <= endDate()) ||
            (rDuration == 0 && qd <= rEndDateTime.date()) ||
            rDuration == -1)) {
         // The date queried falls within the range of the event.
         int i = qmonth;
         for (QPtrListIterator<int> qlin(rYearNums); qlin.current(); ++qlin) {
           if (i == *qlin.current())
             return true;
         }
       }
     }
   }
   return false;
 }
 
 bool Recurrence::recursYearlyByPos(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   int year  = qd.year();
   int month = qd.month();
   int day   = qd.day();
   // calculate how many years ahead this date is from the original
   // event's date
   int yearsAhead = (year - dStart.year());
   if (yearsAhead % rFreq == 0) {
     // The date is in a year which recurs
     if (qd >= dStart
     &&  ((rDuration > 0 && qd <= endDate()) ||
          (rDuration == 0 && qd <= rEndDateTime.date()) ||
          rDuration == -1)) {
       // The date queried falls within the range of the event.
       for (QPtrListIterator<int> qlin(rYearNums); qlin.current(); ++qlin) {
         if (month == *qlin.current()) {
           // The month recurs
           QValueList<int> days;
           getMonthlyPosDays(days, qd.daysInMonth(), QDate(year, month, 1).dayOfWeek());
           for (QValueList<int>::Iterator it = days.begin();  it != days.end();  ++it) {
             if (*it == day)
               return true;
           }
         }
       }
     }
   }
   return false;
 }
 
 bool Recurrence::recursYearlyByDay(const QDate &qd) const
 {
   QDate dStart = mRecurStart.date();
   // calculate how many years ahead this date is from the original
   // event's date
   int yearsAhead = (qd.year() - dStart.year());
   if (yearsAhead % rFreq == 0) {
     // The date is in a year which recurs
     if (qd >= dStart
     &&  ((rDuration > 0 && qd <= endDate()) ||
          (rDuration == 0 && qd <= rEndDateTime.date()) ||
          rDuration == -1)) {
       // The date queried falls within the range of the event.
       int i = qd.dayOfYear();
       for (QPtrListIterator<int> qlin(rYearNums); qlin.current(); ++qlin) {
         if (i == *qlin.current())
           return true;
       }
     }
   }
   return false;
 }
 
 /* Get the date of the next recurrence, after the specified date.
  * If 'last' is non-null, '*last' is set to true if the next recurrence is the
  * last recurrence, else false.
  * Reply = date of next recurrence, or invalid date if none.
  */
 QDate Recurrence::getNextDateNoTime(const QDate &preDate, bool *last) const
 {
   if (last)
     *last = false;
   QDate dStart = mRecurStart.date();
   if (preDate < dStart)
     return dStart;
   QDate earliestDate = preDate.addDays(1);
   QDate nextDate;
 
   switch (recurs) {
     case rDaily:
       nextDate = dStart.addDays((dStart.daysTo(preDate)/rFreq + 1) * rFreq);
       break;
 
     case rWeekly: {
       QDate start = dStart.addDays(1 - dStart.dayOfWeek());   // start of week for dStart
       int earliestDayOfWeek = earliestDate.dayOfWeek();
       int weeksAhead = start.daysTo(earliestDate) / 7;
       int notThisWeek = weeksAhead % rFreq;    // zero if this week is a recurring week
       weeksAhead -= notThisWeek;               // latest week which recurred
       int weekday = 0;
       // First check for any remaining day this week, if this week is a recurring week
       if (!notThisWeek)
         weekday = getFirstDayInWeek(earliestDayOfWeek);
       // Check for a day in the next scheduled week
       if (!weekday  &&  earliestDayOfWeek > 1)
         weekday = getFirstDayInWeek(rWeekStart) + rFreq*7;
       if (weekday)
         nextDate = start.addDays(weeksAhead*7 + weekday - 1);
       break;
     }
     case rMonthlyDay:
     case rMonthlyPos: {
       int startYear  = dStart.year();
       int startMonth = dStart.month();     // 1..12
       int earliestYear = earliestDate.year();
       int monthsAhead = (earliestYear - startYear)*12 + earliestDate.month() - startMonth;
       int notThisMonth = monthsAhead % rFreq;    // zero if this month is a recurring month
       monthsAhead -= notThisMonth;               // latest month which recurred
       // Check for the first later day in the current month
       if (!notThisMonth)
         nextDate = getFirstDateInMonth(earliestDate);
       if (!nextDate.isValid()  &&  earliestDate.day() > 1) {
         // Check for a day in the next scheduled month
         int months = startMonth - 1 + monthsAhead + rFreq;
         nextDate = getFirstDateInMonth(QDate(startYear + months/12, months%12 + 1, 1));
       }
       break;
     }
     case rYearlyMonth:
     case rYearlyPos:
     case rYearlyDay: {
       int startYear  = dStart.year();
       int yearsAhead = earliestDate.year() - startYear;
       int notThisYear = yearsAhead % rFreq;   // zero if this year is a recurring year
       yearsAhead -= notThisYear;              // latest year which recurred
       // Check for the first later date in the current year
       if (!notThisYear)
         nextDate = getFirstDateInYear(earliestDate);
       // Check for a date in the next scheduled year
       if (!nextDate.isValid()  &&  earliestDate.dayOfYear() > 1)
         nextDate = getFirstDateInYear(QDate(startYear + yearsAhead + rFreq, 1, 1));
       break;
     }
     case rNone:
     default:
       return QDate();
   }
 
   if (rDuration >= 0 && nextDate.isValid()) {
     // Check that the date found is within the range of the recurrence
     QDate end = endDate();
     if (nextDate > end)
       return QDate();
     if (last  &&  nextDate == end)
       *last = true;
   }
   return nextDate;
 }
 
 /* Get the date of the last previous recurrence, before the specified date.
  * Reply = date of previous recurrence, or invalid date if none.
  */
 QDate Recurrence::getPreviousDateNoTime(const QDate &afterDate, bool *last) const
 {
   if (last)
     *last = false;
   QDate dStart = mRecurStart.date();
   QDate latestDate = afterDate.addDays(-1);
   if (latestDate < dStart)
     return QDate();
   QDate prevDate;
 
   switch (recurs) {
     case rDaily:
       prevDate = dStart.addDays((dStart.daysTo(latestDate) / rFreq) * rFreq);
       break;
 
     case rWeekly: {
       QDate start = dStart.addDays(1 - dStart.dayOfWeek());   // start of week for dStart
       int latestDayOfWeek = latestDate.dayOfWeek();
       int weeksAhead = start.daysTo(latestDate) / 7;
       int notThisWeek = weeksAhead % rFreq;    // zero if this week is a recurring week
       weeksAhead -= notThisWeek;               // latest week which recurred
       int weekday = 0;
       // First check for any previous day this week, if this week is a recurring week
       if (!notThisWeek)
         weekday = getLastDayInWeek(latestDayOfWeek);
       // Check for a day in the previous scheduled week
       if (!weekday) {
         int weekEnd = (rWeekStart + 5)%7 + 1;
         if (latestDayOfWeek < weekEnd) {
           if (!notThisWeek)
             weeksAhead -= rFreq;
           weekday = getLastDayInWeek(weekEnd);
         }
       }
       if (weekday)
         prevDate = start.addDays(weeksAhead*7 + weekday - 1);
       break;
     }
     case rMonthlyDay:
     case rMonthlyPos: {
       int startYear  = dStart.year();
       int startMonth = dStart.month();     // 1..12
       int latestYear = latestDate.year();
       int monthsAhead = (latestYear - startYear)*12 + latestDate.month() - startMonth;
       int notThisMonth = monthsAhead % rFreq;    // zero if this month is a recurring month
       monthsAhead -= notThisMonth;               // latest month which recurred
       // Check for the last earlier day in the current month
       if (!notThisMonth)
         prevDate = getLastDateInMonth(latestDate);
       if (!prevDate.isValid()  &&  latestDate.day() < latestDate.daysInMonth()) {
         // Check for a day in the previous scheduled month
         if (!notThisMonth)
           monthsAhead -= rFreq;
         int months = startMonth + monthsAhead;   // get the month after the one that recurs
         prevDate = getLastDateInMonth(QDate(startYear + months/12, months%12 + 1, 1).addDays(-1));
       }
       break;
     }
     case rYearlyMonth:
     case rYearlyPos:
     case rYearlyDay: {
       int startYear  = dStart.year();
       int yearsAhead = latestDate.year() - startYear;
       int notThisYear = yearsAhead % rFreq;   // zero if this year is a recurring year
       yearsAhead -= notThisYear;              // latest year which recurred
       // Check for the first later date in the current year
       if (!notThisYear)
         prevDate = getLastDateInYear(latestDate);
       if (!prevDate.isValid()  &&  latestDate.dayOfYear() < latestDate.daysInYear()) {
         // Check for a date in the next scheduled year
         if (!notThisYear)
           yearsAhead -= rFreq;
         prevDate = getLastDateInYear(QDate(startYear + yearsAhead, 12, 31));
       }
       break;
     }
     case rNone:
     default:
       return QDate();
   }
 
   if (prevDate.isValid()) {
     // Check that the date found is within the range of the recurrence
     if (prevDate < dStart)
       return QDate();
     if (rDuration >= 0) {
       QDate end = endDate();
       if (prevDate >= end) {
         if (last)
           *last = true;
         return end;
       }
     }
   }
   return prevDate;
 }
 
 void Recurrence::setDailySub(short type, int freq, int duration)
 {
   recurs = type;
   rFreq = freq;
   rDuration = duration;
   rMonthPositions.clear();
   rMonthDays.clear();
   rYearNums.clear();
   if (type != rDaily)
     mFloats = false;     // sub-daily types can't be floating
 
   if (mParent) mParent->updated();
 }
 
 void Recurrence::setYearly_(short type, Feb29Type feb29type, int freq, int duration)
 {
   recurs = type;
   if (mCompatVersion < 310 && type == rYearlyDay) {
     mCompatRecurs = rYearlyDay;
     recurs = rYearlyMonth;      // convert old yearly-by-day to yearly-by-month
     feb29type = rMar1;          // retain the same day number in the year
   }
 
   mFeb29YearlyType = feb29type;
   rFreq = freq;
   rDuration = duration;
   if (type != rYearlyPos)
     rMonthPositions.clear();
   rMonthDays.clear();
   if (mParent) mParent->updated();
 }
 
 int Recurrence::recurCalc(PeriodFunc func, QDateTime &endtime) const
 {
   QDate enddate = endtime.date();
   switch (func) {
     case END_DATE_AND_COUNT:
       if (rDuration < 0) {
         endtime = QDateTime();
         return 0;    // infinite recurrence
       }
       if (rDuration == 0) {
         endtime = rEndDateTime;
         func = COUNT_TO_DATE;
       }
       break;
     case COUNT_TO_DATE:
       // Count recurrences up to and including the specified date/time.
       if (endtime < mRecurStart)
         return 0;
       if (rDuration == 0 && endtime > rEndDateTime)
         enddate = rEndDateTime.date();
       else if (!mFloats && mRecurStart.time() > endtime.time())
         enddate = enddate.addDays(-1);
       break;
     case NEXT_AFTER_DATE:
       // Find next recurrence AFTER endtime
       if (endtime < mRecurStart) {
         endtime = mRecurStart;
         return 1;
       }
       if (rDuration == 0 && endtime >= rEndDateTime) {
         endtime = QDateTime();
         return 0;
       }
       if (!mFloats && mRecurStart.time() > endtime.time())
         enddate = enddate.addDays(-1);
       break;
     default:
       endtime = QDateTime();
       return 0;
   }
 
   int count = 0;     // default = error
   bool timed = false;
   switch (recurs) {
     case rMinutely:
       timed = true;
       count = secondlyCalc(func, endtime, rFreq*60);
       break;
     case rHourly:
       timed = true;
       count = secondlyCalc(func, endtime, rFreq*3600);
       break;
     case rDaily:
       count = dailyCalc(func, enddate);
       break;
     case rWeekly:
       count = weeklyCalc(func, enddate);
       break;
     case rMonthlyPos:
     case rMonthlyDay:
       count = monthlyCalc(func, enddate);
       break;
     case rYearlyMonth:
       count = yearlyMonthCalc(func, enddate);
       break;
     case rYearlyPos:
       count = yearlyPosCalc(func, enddate);
       break;
     case rYearlyDay:
       count = yearlyDayCalc(func, enddate);
       break;
     default:
       break;
   }
 
   switch (func) {
     case END_DATE_AND_COUNT:
     case NEXT_AFTER_DATE:
       if (count == 0)
         endtime = QDateTime();
       else if (!timed) {
         endtime.setDate(enddate);
         endtime.setTime(mRecurStart.time());
       }
       break;
     case COUNT_TO_DATE:
       break;
   }
   return count;
 }
 
 int Recurrence::recurCalc(PeriodFunc func, QDate &enddate) const
 {
   QDateTime endtime(enddate, QTime(23,59,59));
   switch (func) {
     case END_DATE_AND_COUNT:
       if (rDuration < 0) {
         enddate = QDate();
         return 0;    // infinite recurrence
       }
       if (rDuration == 0) {
         enddate = rEndDateTime.date();
         func = COUNT_TO_DATE;
       }
       break;
     case COUNT_TO_DATE:
       // Count recurrences up to and including the specified date.
       if (enddate < mRecurStart.date())
         return 0;
       if (rDuration == 0 && enddate > rEndDateTime.date()) {
         enddate = rEndDateTime.date();
         endtime.setDate(enddate);
       }
       break;
     case NEXT_AFTER_DATE:
       if (enddate < mRecurStart.date()) {
         enddate = mRecurStart.date();
         return 1;
       }
       if (rDuration == 0 && enddate >= rEndDateTime.date()) {
         enddate = QDate();
         return 0;
       }
       break;
     default:
       enddate = QDate();
       return 0;
   }
 
   int count = 0;     // default = error
   bool timed = false;
   switch (recurs) {
     case rMinutely:
       timed = true;
       count = secondlyCalc(func, endtime, rFreq*60);
       break;
     case rHourly:
       timed = true;
       count = secondlyCalc(func, endtime, rFreq*3600);
       break;
     case rDaily:
       count = dailyCalc(func, enddate);
       break;
     case rWeekly:
       count = weeklyCalc(func, enddate);
       break;
     case rMonthlyPos:
     case rMonthlyDay:
       count = monthlyCalc(func, enddate);
       break;
     case rYearlyMonth:
       count = yearlyMonthCalc(func, enddate);
       break;
     case rYearlyPos:
       count = yearlyPosCalc(func, enddate);
       break;
     case rYearlyDay:
       count = yearlyDayCalc(func, enddate);
       break;
     default:
       break;
   }
 
   switch (func) {
     case END_DATE_AND_COUNT:
     case NEXT_AFTER_DATE:
       if (count == 0)
         endtime = QDate();
       else if (timed)
         enddate = endtime.date();
       break;
     case COUNT_TO_DATE:
       break;
   }
   return count;
 }
 
 /* Find count and, depending on 'func', the end date/time of a secondly recurrence.
  * Reply = total number of occurrences up to 'endtime', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'endtime' is updated to the
  * recurrence end date/time.
  */
 int Recurrence::secondlyCalc(PeriodFunc func, QDateTime &endtime, int freq) const
 {
   switch (func) {
     case END_DATE_AND_COUNT:
       endtime = mRecurStart.addSecs((rDuration + mRecurExDatesCount - 1) * freq);
       return rDuration + mRecurExDatesCount;
     case COUNT_TO_DATE: {
       int n = mRecurStart.secsTo(endtime)/freq + 1;
       if (rDuration > 0 && n > rDuration + mRecurExDatesCount)
         return rDuration + mRecurExDatesCount;
       return n;
     }
     case NEXT_AFTER_DATE: {
       int count = mRecurStart.secsTo(endtime) / freq + 2;
       if (rDuration > 0 && count > rDuration)
         return 0;
       endtime = mRecurStart.addSecs((count - 1)*freq);
       return count;
     }
   }
   return 0;
 }
 
 /* Find count and, depending on 'func', the end date of a daily recurrence.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 int Recurrence::dailyCalc(PeriodFunc func, QDate &enddate) const
 {
   QDate dStart = mRecurStart.date();
   switch (func) {
     case END_DATE_AND_COUNT:
       enddate = dStart.addDays((rDuration + mRecurExDatesCount - 1) * rFreq);
       return rDuration + mRecurExDatesCount;
     case COUNT_TO_DATE: {
       int n = dStart.daysTo(enddate)/rFreq + 1;
       if (rDuration > 0 && n > rDuration + mRecurExDatesCount)
         return rDuration + mRecurExDatesCount;
       return n;
     }
     case NEXT_AFTER_DATE: {
       int count = dStart.daysTo(enddate) / rFreq + 2;
       if (rDuration > 0 && count > rDuration)
         return 0;
       enddate = dStart.addDays((count - 1)*rFreq);
       return count;
     }
   }
   return 0;
 }
 
 /* Find count and, depending on 'func', the end date of a weekly recurrence.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 int Recurrence::weeklyCalc(PeriodFunc func, QDate &enddate) const
 {
   int daysPerWeek = 0;
   for (int i = 0;  i < 7;  ++i) {
     if (rDays.testBit((uint)i))
       ++daysPerWeek;
   }
   if (!daysPerWeek)
     return 0;     // there are no days to recur on
 
   switch (func) {
     case END_DATE_AND_COUNT:
       return weeklyCalcEndDate(enddate, daysPerWeek);
     case COUNT_TO_DATE:
       return weeklyCalcToDate(enddate, daysPerWeek);
     case NEXT_AFTER_DATE:
       return weeklyCalcNextAfter(enddate, daysPerWeek);
   }
   return 0;
 }
 
 int Recurrence::weeklyCalcEndDate(QDate &enddate, int daysPerWeek) const
 {
   int startDayOfWeek = mRecurStart.date().dayOfWeek();     // 1..7
   int countGone = 0;
   int daysGone = 0;
   uint countTogo = rDuration + mRecurExDatesCount;
   if (startDayOfWeek != rWeekStart) {
     // Check what remains of the start week
     for (int i = startDayOfWeek - 1;  i != rWeekStart - 1;  i = (i + 1) % 7) {
           ++daysGone;
       if (rDays.testBit((uint)i)) {
         ++countGone;
         if (--countTogo == 0)
           break;
       }
     }
     daysGone += 7 * (rFreq - 1);
   }
   if (countTogo) {
     // Skip the remaining whole weeks
     // Leave at least 1 recurrence remaining, in order to get its date
     int wholeWeeks = (countTogo - 1) / daysPerWeek;
     daysGone += wholeWeeks * 7 * rFreq;
     countGone += wholeWeeks * daysPerWeek;
     countTogo -= wholeWeeks * daysPerWeek;
     // Check the last week in the recurrence
     for (int i = rWeekStart - 1;  ;  i = (i + 1) % 7) {
           ++daysGone;
       if (rDays.testBit((uint)i)) {
         ++countGone;
         if (--countTogo == 0) 
           break;
       }
     }
   }
   enddate = mRecurStart.date().addDays(daysGone);
   return countGone;
 }
 
 int Recurrence::weeklyCalcToDate(const QDate &enddate, int daysPerWeek) const
 {
   QDate dStart = mRecurStart.date();
   int startDayOfWeek = dStart.dayOfWeek();     // 1..7
   int countGone = 0;
   int daysGone  = 0;
   int totalDays = dStart.daysTo(enddate) + 1;
   int countMax  = (rDuration > 0) ? rDuration + mRecurExDatesCount : INT_MAX;
 
   if (startDayOfWeek != rWeekStart) {
     // Check what remains of the start week
     for (int i = startDayOfWeek - 1;  i != rWeekStart - 1;  i = (i + 1) % 7) {
       if (rDays.testBit((uint)i)) {
         if (++countGone >= countMax)
           return countMax;
       }
       if (++daysGone == totalDays)
         return countGone;
     }
     daysGone += 7 * (rFreq - 1);
     if (daysGone >= totalDays)
       return countGone;
   }
   // Skip the remaining whole weeks
   int wholeWeeks = (totalDays - daysGone) / 7;
   countGone += (wholeWeeks / rFreq) * daysPerWeek;
   if (countGone >= countMax)
     return countMax;
   daysGone += wholeWeeks * 7;
   if (daysGone >= totalDays     // have we reached the end date?
   ||  wholeWeeks % rFreq)       // is end week a recurrence week?
     return countGone;
 
   // Check the last week in the recurrence
   for (int i = rWeekStart - 1;  ;  i = (i + 1) % 7) {
     if (rDays.testBit((uint)i)) {
       if (++countGone >= countMax)
         return countMax;
     }
     if (++daysGone == totalDays)
       return countGone;
   }
   return countGone;
 }
 
 int Recurrence::weeklyCalcNextAfter(QDate &enddate, int daysPerWeek) const
 {
   QDate dStart = mRecurStart.date();
   int  startDayOfWeek = dStart.dayOfWeek();     // 1..7
   int  totalDays = dStart.daysTo(enddate) + 1;
   uint countTogo = (rDuration > 0) ? rDuration + mRecurExDatesCount : UINT_MAX;
   int  countGone = 0;
   int  daysGone = 0;
   int recurWeeks;
 
   if (startDayOfWeek != rWeekStart) {
     // Check what remains of the start week
     for (int i = startDayOfWeek - 1;  i != rWeekStart - 1;  i = (i + 1) % 7) {
       ++daysGone;
       if (rDays.testBit((uint)i)) {
         ++countGone;
         if (daysGone > totalDays)
           goto ex;
         if (--countTogo == 0)
           return 0;
       }
     }
     daysGone += 7 * (rFreq - 1);
   }
 
   // Skip the remaining whole weeks
   recurWeeks = (totalDays - daysGone) / (7 * rFreq);
   if (recurWeeks) {
     int n = recurWeeks * daysPerWeek;
     if (static_cast<uint>(n) > countTogo)
         return 0;     // reached end of recurrence
     countGone += n;
     countTogo -= n;
    daysGone += recurWeeks * 7 * rFreq;
   }
 
   // Check the last week or two in the recurrence
   for ( ; ; ) {
     for (int i = rWeekStart - 1;  ;  i = (i + 1) % 7) {
       ++daysGone;
       if (rDays.testBit((uint)i)) {
         ++countGone;
         if (daysGone > totalDays)
           goto ex;
         if (--countTogo == 0)
           return 0;
       }
     }
     daysGone += 7 * (rFreq - 1);
   }
 ex:
   enddate = dStart.addDays(daysGone);
   return countGone;
 }
 
 /* Find count and, depending on 'func', the end date of a monthly recurrence.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 struct Recurrence::MonthlyData {
     const Recurrence *recurrence;
     int               year;          // current year
     int               month;         // current month 0..11
     int               day;           // current day of month 1..31
     bool              varies;        // true if recurring days vary between different months
   private:
     QValueList<int>   days28, days29, days30, days31;   // recurring days in months of each length
     QValueList<int>  *recurDays[4];
   public:
     MonthlyData(const Recurrence* r, const QDate &date)
              : recurrence(r), year(date.year()), month(date.month()-1), day(date.day())
              { recurDays[0] = &days28;
                recurDays[1] = &days29;
                recurDays[2] = &days30;
                recurDays[3] = &days31;
                varies = (recurrence->recurs == rMonthlyPos)
                         ? true : recurrence->getMonthlyDayDays(days31, 31);
              }
     const QValueList<int>* dayList() const {
             if (!varies)
               return &days31;
             QDate startOfMonth(year, month + 1, 1);
             int daysInMonth = startOfMonth.daysInMonth();
             QValueList<int>* days = recurDays[daysInMonth - 28];
             if (recurrence->recurs == rMonthlyPos)
               recurrence->getMonthlyPosDays(*days, daysInMonth, startOfMonth.dayOfWeek());
             else if (days->isEmpty())
               recurrence->getMonthlyDayDays(*days, daysInMonth);
             return days;
     }
     int    yearMonth() const    { return year*12 + month; }
     void   addMonths(int diff)  { month += diff;  year += month / 12;  month %= 12; }
     QDate  date() const         { return QDate(year, month + 1, day); }
 };
 
 int Recurrence::monthlyCalc(PeriodFunc func, QDate &enddate) const
 {
   if (recurs == rMonthlyPos && rMonthPositions.isEmpty()
   ||  recurs == rMonthlyDay && rMonthDays.isEmpty())
     return 0;
 
   MonthlyData data(this, mRecurStart.date());
   switch (func) {
     case END_DATE_AND_COUNT:
       return monthlyCalcEndDate(enddate, data);
     case COUNT_TO_DATE:
       return monthlyCalcToDate(enddate, data);
     case NEXT_AFTER_DATE:
       return monthlyCalcNextAfter(enddate, data);
   }
   return 0;
 }
 
 int Recurrence::monthlyCalcEndDate(QDate &enddate, MonthlyData &data) const
 {
   uint countTogo = rDuration + mRecurExDatesCount;
   int  countGone = 0;
   QValueList<int>::ConstIterator it;
   const QValueList<int>* days = data.dayList();
 
   if (data.day > 1) {
     // Check what remains of the start month
     for (it = days->begin();  it != days->end();  ++it) {
       if (*it >= data.day) {
         ++countGone;
         if (--countTogo == 0) {
           data.day = *it;
           break;
         }
       }
     }
     if (countTogo) {
       data.day = 1;
       data.addMonths(rFreq);
     }
   }
   if (countTogo) {
     if (data.varies) {
       // The number of recurrence days varies from month to month,
       // so we need to check month by month.
       for ( ; ; ) {
         days = data.dayList();
         uint n = days->count();    // number of recurrence days in this month
         if (n >= countTogo)
           break;
         countTogo -= n;
         countGone += n;
         data.addMonths(rFreq);
       }
     } else {
       // The number of recurrences is the same every month,
       // so skip the month-by-month check.
       // Skip the remaining whole months, but leave at least
       // 1 recurrence remaining, in order to get its date.
       int daysPerMonth = days->count();
       int wholeMonths = (countTogo - 1) / daysPerMonth;
       data.addMonths(wholeMonths * rFreq);
       countGone += wholeMonths * daysPerMonth;
       countTogo -= wholeMonths * daysPerMonth;
     }
     if (countTogo) {
       // Check the last month in the recurrence
       for (it = days->begin();  it != days->end();  ++it) {
         ++countGone;
         if (--countTogo == 0) {
           data.day = *it;
           break;
         }
       }
     }
   }
   enddate = data.date();
   return countGone;
 }
 
 int Recurrence::monthlyCalcToDate(const QDate &enddate, MonthlyData &data) const
 {
   int countGone = 0;
   int countMax  = (rDuration > 0) ? rDuration + mRecurExDatesCount : INT_MAX;
   int endYear  = enddate.year();
   int endMonth = enddate.month() - 1;     // zero-based
   int endDay   = enddate.day();
   int endYearMonth = endYear*12 + endMonth;
   QValueList<int>::ConstIterator it;
   const QValueList<int>* days = data.dayList();
 
   if (data.day > 1) {
     // Check what remains of the start month
     for (it = days->begin();  it != days->end();  ++it) {
       if (*it >= data.day) {
         if (data.yearMonth() == endYearMonth && *it > endDay)
           return countGone;
         if (++countGone >= countMax)
           return countMax;
       }
     }
     data.day = 1;
     data.addMonths(rFreq);
   }
 
   if (data.varies) {
     // The number of recurrence days varies from month to month,
     // so we need to check month by month.
     while (data.yearMonth() < endYearMonth) {
       countGone += data.dayList()->count();
       if (countGone >= countMax)
         return countMax;
       data.addMonths(rFreq);
     }
     days = data.dayList();
   } else {
     // The number of recurrences is the same every month,
     // so skip the month-by-month check.
     // Skip the remaining whole months.
     int daysPerMonth = days->count();
     int wholeMonths = endYearMonth - data.yearMonth();
     countGone += (wholeMonths / rFreq) * daysPerMonth;
     if (countGone >= countMax)
       return countMax;
     if (wholeMonths % rFreq)
       return countGone;      // end year isn't a recurrence year
     data.year  = endYear;
     data.month = endMonth;
   }
 
   // Check the last month in the recurrence
   for (it = days->begin();  it != days->end();  ++it) {
     if (*it > endDay)
       return countGone;
     if (++countGone >= countMax)
       return countMax;
   }
   return countGone;
 }
 
 int Recurrence::monthlyCalcNextAfter(QDate &enddate, MonthlyData &data) const
 {
   uint countTogo = (rDuration > 0) ? rDuration + mRecurExDatesCount : UINT_MAX;
   int countGone = 0;
   int endYear = enddate.year();
   int endDay  = enddate.day();
   int endYearMonth = endYear*12 + enddate.month() - 1;
   QValueList<int>::ConstIterator it;
   const QValueList<int>* days = data.dayList();
 
   if (data.day > 1) {
     // Check what remains of the start month
     for (it = days->begin();  it != days->end();  ++it) {
       if (*it >= data.day) {
         ++countGone;
         if (data.yearMonth() == endYearMonth && *it > endDay) {
           data.day = *it;
           goto ex;
         }
         if (--countTogo == 0)
           return 0;
       }
     }
     data.day = 1;
     data.addMonths(rFreq);
   }
 
   if (data.varies) {
     // The number of recurrence days varies from month to month,
     // so we need to check month by month.
     while (data.yearMonth() <= endYearMonth) {
       days = data.dayList();
       uint n = days->count();    // number of recurrence days in this month
       if (data.yearMonth() == endYearMonth && days->last() > endDay)
         break;
       if (n >= countTogo)
         return 0;
       countGone += n;
       countTogo -= n;
       data.addMonths(rFreq);
     }
     days = data.dayList();
   } else {
     // The number of recurrences is the same every month,
     // so skip the month-by-month check.
     // Skip the remaining whole months to at least end year/month.
     int daysPerMonth = days->count();
     int elapsed = endYearMonth - data.yearMonth();
     int recurMonths = (elapsed + rFreq - 1) / rFreq;
     if (elapsed % rFreq == 0  &&  days->last() <= endDay)
       ++recurMonths;    // required month is after endYearMonth
     if (recurMonths) {
       int n = recurMonths * daysPerMonth;
       if (static_cast<uint>(n) > countTogo)
         return 0;     // reached end of recurrence
       countTogo -= n;
       countGone += n;
       data.addMonths(recurMonths * rFreq);
     }
   }
 
   // Check the last month in the recurrence
   for (it = days->begin();  it != days->end();  ++it) {
     ++countGone;
     if (data.yearMonth() > endYearMonth  ||  *it > endDay) {
       data.day = *it;
       break;
     }
     if (--countTogo == 0)
       return 0;
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 
 /* Find count and, depending on 'func', the end date of an annual recurrence by date.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 struct Recurrence::YearlyMonthData {
     const Recurrence *recurrence;
     int               year;          // current year
     int               month;         // current month 1..12
     int               day;           // current day of month 1..31
     bool              leapyear;      // true if February 29th recurs and current year is a leap year
     bool              feb29;         // true if February 29th recurs
   private:
     QValueList<int>   months;        // recurring months in non-leap years  1..12
     QValueList<int>   leapMonths;    // recurring months in leap years  1..12
   public:
     YearlyMonthData(const Recurrence* r, const QDate &date)
           : recurrence(r), year(date.year()), month(date.month()), day(date.day())
           { feb29 = recurrence->getYearlyMonthMonths(day, months, leapMonths);
             leapyear = feb29 && QDate::leapYear(year);
           }
     const QValueList<int>* monthList() const
                          { return leapyear ? &leapMonths : &months; }
     const QValueList<int>* leapMonthList() const  { return &leapMonths; }
     QDate            date() const  { return QDate(year, month, day); }
 };
 
 int Recurrence::yearlyMonthCalc(PeriodFunc func, QDate &enddate) const
 {
   if (rYearNums.isEmpty())
     return 0;
   YearlyMonthData data(this, mRecurStart.date());
   switch (func) {
     case END_DATE_AND_COUNT:
       return yearlyMonthCalcEndDate(enddate, data);
     case COUNT_TO_DATE:
       return yearlyMonthCalcToDate(enddate, data);
     case NEXT_AFTER_DATE:
       return yearlyMonthCalcNextAfter(enddate, data);
   }
   return 0;
 }
 
 // Find total count and end date of an annual recurrence by date.
 // Reply = total number of occurrences.
 int Recurrence::yearlyMonthCalcEndDate(QDate &enddate, YearlyMonthData &data) const
 {
   uint countTogo = rDuration + mRecurExDatesCount;
   int  countGone = 0;
   QValueList<int>::ConstIterator it;
   const QValueList<int>* mons = data.monthList();   // get recurring months for this year
 
   if (data.month > 1) {
     // Check what remains of the start year
     for (it = mons->begin();  it != mons->end();  ++it) {
       if (*it >= data.month) {
         ++countGone;
         if (--countTogo == 0) {
           data.month = *it;
           if (data.month == 2 && data.feb29 && !data.leapyear) {
             // The recurrence should end on February 29th, but it's a non-leap year
             switch (mFeb29YearlyType) {
               case rFeb28:
                 data.day = 28;
                 break;
               case rMar1:
                 data.month = 3;
                 data.day   = 1;
                 break;
               case rFeb29:
                 break;
             }
           }
           break;
         }
       }
     }
     if (countTogo) {
       data.month = 1;
       data.year += rFreq;
     }
   }
   if (countTogo) {
     if (data.feb29 && mFeb29YearlyType == rFeb29) {
       // The number of recurrences is different on leap years,
       // so check year-by-year.
       for ( ; ; ) {
         mons = data.monthList();
         uint n = mons->count();
         if (n >= countTogo)
           break;
         countTogo -= n;
         countGone += n;
         data.year += rFreq;
       }
     } else {
       // The number of recurrences is the same every year,
       // so skip the year-by-year check.
       // Skip the remaining whole years, but leave at least
       // 1 recurrence remaining, in order to get its date.
       int monthsPerYear = mons->count();
       int wholeYears = (countTogo - 1) / monthsPerYear;
       data.year += wholeYears * rFreq;
       countGone += wholeYears * monthsPerYear;
       countTogo -= wholeYears * monthsPerYear;
     }
     if (countTogo) {
       // Check the last year in the recurrence
       for (it = mons->begin();  it != mons->end();  ++it) {
         ++countGone;
         if (--countTogo == 0) {
           data.month = *it;
           if (data.month == 2 && data.feb29 && !QDate::leapYear(data.year)) {
             // The recurrence should end on February 29th, but it's a non-leap year
             switch (mFeb29YearlyType) {
               case rFeb28:
                 data.day = 28;
                 break;
               case rMar1:
                 data.month = 3;
                 data.day   = 1;
                 break;
               case rFeb29:
                 break;
             }
           }
           break;
         }
       }
     }
   }
   enddate = data.date();
   return countGone;
 }
 
 // Find count of an annual recurrence by date.
 // Reply = total number of occurrences up to 'enddate'.
 int Recurrence::yearlyMonthCalcToDate(const QDate &enddate, YearlyMonthData &data) const
 {
   int countGone = 0;
   int countMax  = (rDuration > 0) ? rDuration + mRecurExDatesCount : INT_MAX;
   int endYear  = enddate.year();
   int endMonth = enddate.month();
   int endDay   = enddate.day();
   if (endDay < data.day) {
     /* The end day of the month is earlier than the recurrence day of the month.
      * If Feb 29th recurs and:
      * 1) it recurs on Feb 28th in non-leap years, don't adjust the end month
      *    if enddate is Feb 28th on a non-leap year.
      * 2) it recurs on Mar 1st in non-leap years, allow the end month to be
      *    adjusted to February, to simplify calculations.
      */
     if (data.feb29  &&  !QDate::leapYear(endYear)
     &&  mFeb29YearlyType == rFeb28  &&  endDay == 28  &&  endMonth == 2) {
     }
     else if (--endMonth == 0) {
       endMonth = 12;
       --endYear;
     }
   }
   QValueList<int>::ConstIterator it;
   const QValueList<int>* mons = data.monthList();
 
   if (data.month > 1) {
     // Check what remains of the start year
     for (it = mons->begin();  it != mons->end();  ++it) {
       if (*it >= data.month) {
         if (data.year == endYear && *it > endMonth)
           return countGone;
         if (++countGone >= countMax)
           return countMax;
       }
     }
     data.month = 1;
     data.year += rFreq;
   }
   if (data.feb29 && mFeb29YearlyType == rFeb29) {
     // The number of recurrences is different on leap years,
     // so check year-by-year.
     while (data.year < endYear) {
       countGone += data.monthList()->count();
       if (countGone >= countMax)
         return countMax;
       data.year += rFreq;
     }
     mons = data.monthList();
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years.
     int monthsPerYear = mons->count();
     int wholeYears = endYear - data.year;
     countGone += (wholeYears / rFreq) * monthsPerYear;
     if (countGone >= countMax)
       return countMax;
     if (wholeYears % rFreq)
       return countGone;      // end year isn't a recurrence year
     data.year = endYear;
   }
 
   // Check the last year in the recurrence
   for (it = mons->begin();  it != mons->end();  ++it) {
     if (*it > endMonth)
       return countGone;
     if (++countGone >= countMax)
       return countMax;
   }
   return countGone;
 }
 
 // Find count and date of first recurrence after 'enddate' of an annual recurrence by date.
 // Reply = total number of occurrences up to 'enddate'.
 int Recurrence::yearlyMonthCalcNextAfter(QDate &enddate, YearlyMonthData &data) const
 {
   uint countTogo = (rDuration > 0) ? rDuration + mRecurExDatesCount : UINT_MAX;
   int  countGone = 0;
   int endYear  = enddate.year();
   int endMonth = enddate.month();
   int endDay   = enddate.day();
   bool mar1TooEarly = false;
   bool feb28ok      = false;
   if (endDay < data.day) {
     if (data.feb29 && mFeb29YearlyType == rMar1 && endMonth == 3)
       mar1TooEarly = true;
     if (data.feb29 && mFeb29YearlyType == rFeb28 && endMonth == 2 && endDay == 28)
       feb28ok = true;
     else if (--endMonth == 0) {
       endMonth = 12;
       --endYear;
     }
   }
   QValueList<int>::ConstIterator it;
   const QValueList<int>* mons = data.monthList();
 
   if (data.month > 1) {
     // Check what remains of the start year
     for (it = mons->begin();  it != mons->end();  ++it) {
       if (*it >= data.month) {
         ++countGone;
         if (data.year == endYear
         &&  (   *it > endMonth && (*it > 3 || !mar1TooEarly)
              || *it == 2 && feb28ok && data.leapyear)) {
           if (*it == 2 && data.feb29 && !data.leapyear) {
             // The next recurrence should be on February 29th, but it's a non-leap year
             switch (mFeb29YearlyType) {
               case rFeb28:
                 data.month = 2;
                 data.day   = 28;
                 break;
               case rMar1:
                 data.month = 3;
                 data.day   = 1;
                 break;
               case rFeb29:   // impossible in this context!
                 break;
             }
           }
           else
             data.month = *it;
           goto ex;
         }
         if (--countTogo == 0)
           return 0;
       }
     }
     data.month = 1;
     data.year += rFreq;
   }
 
   if (data.feb29 && mFeb29YearlyType == rFeb29) {
     // The number of recurrences is different on leap years,
     // so check year-by-year.
     while (data.year <= endYear) {
       mons = data.monthList();
       if (data.year == endYear && mons->last() > endMonth)
         break;
       uint n = mons->count();
       if (n >= countTogo)
         break;
       countTogo -= n;
       countGone += n;
       data.year += rFreq;
     }
     mons = data.monthList();
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years to at least endYear.
     int monthsPerYear = mons->count();
     int recurYears = (endYear - data.year + rFreq - 1) / rFreq;
     if ((endYear - data.year)%rFreq == 0
     &&  mons->last() <= endMonth)
       ++recurYears;    // required year is after endYear
     if (recurYears) {
       int n = recurYears * monthsPerYear;
       if (static_cast<uint>(n) > countTogo)
         return 0;     // reached end of recurrence
       countTogo -= n;
       countGone += n;
       data.year += recurYears * rFreq;
     }
   }
 
   // Check the last year in the recurrence
   for (it = mons->begin();  it != mons->end();  ++it) {
     ++countGone;
     if (data.year > endYear
     ||  (   *it > endMonth && (*it > 3 || !mar1TooEarly)
          || *it == 2 && feb28ok && QDate::leapYear(data.year))) {
       if (*it == 2 && data.feb29 && !QDate::leapYear(data.year)) {
         // The next recurrence should be on February 29th, but it's a non-leap year
         switch (mFeb29YearlyType) {
           case rFeb28:
             data.month = 2;
             data.day   = 28;
             break;
           case rMar1:
             data.month = 3;
             data.day   = 1;
             break;
           case rFeb29:   // impossible in this context!
             break;
         }
       }
       else
         data.month = *it;
       break;
     }
     if (--countTogo == 0)
       return 0;
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 
 /* Find count and, depending on 'func', the end date of an annual recurrence by date.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 struct Recurrence::YearlyPosData {
     const Recurrence *recurrence;
     int               year;          // current year
     int               month;         // current month 1..12
     int               day;           // current day of month 1..31
     int               daysPerMonth;  // number of days which recur each month, or -1 if variable
     int               count;         // number of days which recur each year, or -1 if variable
     bool              varies;        // true if number of days varies from year to year
   private:
     mutable QValueList<int> days;
   public:
     YearlyPosData(const Recurrence* r, const QDate &date)
           : recurrence(r), year(date.year()), month(date.month()), day(date.day()), count(-1)
             { if ((daysPerMonth = r->countMonthlyPosDays()) > 0)
                 count = daysPerMonth * r->rYearNums.count();
               varies = (daysPerMonth < 0);
             }
     const QValueList<int>* dayList() const {
             QDate startOfMonth(year, month, 1);
             recurrence->getMonthlyPosDays(days, startOfMonth.daysInMonth(), startOfMonth.dayOfWeek());
             return &days;
     }
     int    yearMonth() const    { return year*12 + month - 1; }
     void   addMonths(int diff)  { month += diff - 1;  year += month / 12;  month = month % 12 + 1; }
     QDate  date() const         { return QDate(year, month, day); }
 };
 
 int Recurrence::yearlyPosCalc(PeriodFunc func, QDate &enddate) const
 {
   if (rYearNums.isEmpty() || rMonthPositions.isEmpty())
     return 0;
   YearlyPosData data(this, mRecurStart.date());
   switch (func) {
     case END_DATE_AND_COUNT:
       return yearlyPosCalcEndDate(enddate, data);
     case COUNT_TO_DATE:
       return yearlyPosCalcToDate(enddate, data);
     case NEXT_AFTER_DATE:
       return yearlyPosCalcNextAfter(enddate, data);
   }
   return 0;
 }
 
 int Recurrence::yearlyPosCalcEndDate(QDate &enddate, YearlyPosData &data) const
 {
   uint countTogo = rDuration + mRecurExDatesCount;
   int  countGone = 0;
   QValueList<int>::ConstIterator id;
   const QValueList<int>* days;
 
   if (data.month > 1 || data.day > 1) {
     // Check what remains of the start year
     for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
       if (*im.current() >= data.month) {
         // Check what remains of the start month
         if (data.day > 1 || data.varies
         ||  static_cast<uint>(data.daysPerMonth) >= countTogo) {
           data.month = *im.current();
           days = data.dayList();
           for (id = days->begin();  id != days->end();  ++id) {
             if (*id >= data.day) {
               ++countGone;
               if (--countTogo == 0) {
                 data.month = *im.current();
                 data.day = *id;
                 goto ex;
               }
             }
           }
           data.day = 1;
         } else {
           // The number of days per month is constant, so skip
           // the whole month.
           countTogo -= data.daysPerMonth;
           countGone += data.daysPerMonth;
         }
       }
     }
     data.month = 1;
     data.year += rFreq;
   }
 
   if (data.varies) {
     // The number of recurrences varies from year to year.
     for ( ; ; ) {
       for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
         data.month = *im.current();
         days = data.dayList();
         int n = days->count();
         if (static_cast<uint>(n) >= countTogo) {
           // Check the last month in the recurrence
           for (id = days->begin();  id != days->end();  ++id) {
             ++countGone;
             if (--countTogo == 0) {
               data.day = *id;
               goto ex;
             }
           }
         }
         countTogo -= n;
         countGone += n;
       }
       data.year += rFreq;
     }
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years, but leave at least
     // 1 recurrence remaining, in order to get its date.
     int wholeYears = (countTogo - 1) / data.count;
     data.year += wholeYears * rFreq;
     countGone += wholeYears * data.count;
     countTogo -= wholeYears * data.count;
 
     // Check the last year in the recurrence.
     for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
       if (static_cast<uint>(data.daysPerMonth) >= countTogo) {
         // Check the last month in the recurrence
         data.month = *im.current();
         days = data.dayList();
         for (id = days->begin();  id != days->end();  ++id) {
           ++countGone;
           if (--countTogo == 0) {
             data.day = *id;
             goto ex;
           }
         }
       }
       countTogo -= data.daysPerMonth;
       countGone += data.daysPerMonth;
     }
     data.year += rFreq;
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 int Recurrence::yearlyPosCalcToDate(const QDate &enddate, YearlyPosData &data) const
 {
   int countGone = 0;
   int countMax  = (rDuration > 0) ? rDuration + mRecurExDatesCount : INT_MAX;
   int endYear  = enddate.year();
   int endMonth = enddate.month();
   int endDay   = enddate.day();
   if (endDay < data.day && --endMonth == 0) {
     endMonth = 12;
     --endYear;
   }
   int endYearMonth = endYear*12 + endMonth;
   QValueList<int>::ConstIterator id;
   const QValueList<int>* days;
 
   if (data.month > 1 || data.day > 1) {
     // Check what remains of the start year
     for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
       if (*im.current() >= data.month) {
         data.month = *im.current();
         if (data.yearMonth() > endYearMonth)
           return countGone;
         // Check what remains of the start month
         bool lastMonth = (data.yearMonth() == endYearMonth);
         if (lastMonth || data.day > 1 || data.varies) {
           days = data.dayList();
           if (lastMonth || data.day > 1) {
             for (id = days->begin();  id != days->end();  ++id) {
               if (*id >= data.day) {
                 if (lastMonth && *id > endDay)
                   return countGone;
                 if (++countGone >= countMax)
                   return countMax;
               }
             }
           } else {
             countGone += days->count();
             if (countGone >= countMax)
               return countMax;
           }
           data.day = 1;
         } else {
           // The number of days per month is constant, so skip
           // the whole month.
           countGone += data.daysPerMonth;
           if (countGone >= countMax)
             return countMax;
         }
       }
     }
     data.month = 1;
     data.year += rFreq;
   }
 
   if (data.varies) {
     // The number of recurrences varies from year to year.
     for ( ; ; ) {
       for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
         data.month = *im.current();
         days = data.dayList();
         if (data.yearMonth() >= endYearMonth) {
           if (data.yearMonth() > endYearMonth)
             return countGone;
           // Check the last month in the recurrence
           for (id = days->begin();  id != days->end();  ++id) {
             if (*id > endDay)
               return countGone;
             if (++countGone >= countMax)
               return countMax;
           }
         } else {
           countGone += days->count();
           if (countGone >= countMax)
             return countMax;
         }
       }
       data.year += rFreq;
     }
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years, but leave at least
     // 1 recurrence remaining, in order to get its date.
     int wholeYears = endYear - data.year;
     countGone += (wholeYears / rFreq) * data.count;
     if (countGone >= countMax)
       return countMax;
     if (wholeYears % rFreq)
       return countGone;      // end year isn't a recurrence year
     data.year = endYear;
 
     // Check the last year in the recurrence.
     for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
       data.month = *im.current();
       if (data.month >= endMonth) {
         if (data.month > endMonth)
           return countGone;
         // Check the last month in the recurrence
         days = data.dayList();
         for (id = days->begin();  id != days->end();  ++id) {
           if (*id > endDay)
             return countGone;
           if (++countGone >= countMax)
             return countMax;
         }
       } else {
         countGone += data.daysPerMonth;
         if (countGone >= countMax)
           return countMax;
       }
     }
   }
   return countGone;
 }
 
 int Recurrence::yearlyPosCalcNextAfter(QDate &enddate, YearlyPosData &data) const
 {
   uint countTogo = (rDuration > 0) ? rDuration + mRecurExDatesCount : UINT_MAX;
   int  countGone = 0;
   int endYear  = enddate.year();
   int endMonth = enddate.month();
   int endDay   = enddate.day();
   if (endDay < data.day && --endMonth == 0) {
     endMonth = 12;
     --endYear;
   }
   int endYearMonth = endYear*12 + endMonth;
   QValueList<int>::ConstIterator id;
   const QValueList<int>* days;
 
   if (data.varies) {
     // The number of recurrences varies from year to year.
     for ( ; ; ) {
       // Check the next year
       for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
         if (*im.current() >= data.month) {
           // Check the next month
           data.month = *im.current();
           int ended = data.yearMonth() - endYearMonth;
           days = data.dayList();
           if (ended >= 0 || data.day > 1) {
             // This is the start or end month, so check each day
             for (id = days->begin();  id != days->end();  ++id) {
               if (*id >= data.day) {
                 ++countGone;
                 if (ended > 0 || (ended == 0 && *id > endDay)) {
                   data.day = *id;
                   goto ex;
                 }
                 if (--countTogo == 0)
                   return 0;
               }
             }
           } else {
             // Skip the whole month
             uint n = days->count();
             if (n >= countTogo)
               return 0;
             countGone += n;
           }
           data.day = 1;      // we've checked the start month now
         }
       }
       data.month = 1;        // we've checked the start year now
       data.year += rFreq;
     }
   } else {
     // The number of recurrences is the same every year.
     if (data.month > 1 || data.day > 1) {
       // Check what remains of the start year
       for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
         if (*im.current() >= data.month) {
           // Check what remains of the start month
           data.month = *im.current();
           int ended = data.yearMonth() - endYearMonth;
           if (ended >= 0 || data.day > 1) {
             // This is the start or end month, so check each day
             days = data.dayList();
             for (id = days->begin();  id != days->end();  ++id) {
               if (*id >= data.day) {
                 ++countGone;
                 if (ended > 0 || (ended == 0 && *id > endDay)) {
                   data.day = *id;
                   goto ex;
                 }
                 if (--countTogo == 0)
                   return 0;
               }
             }
             data.day = 1;      // we've checked the start month now
           } else {
             // Skip the whole month.
             if (static_cast<uint>(data.daysPerMonth) >= countTogo)
               return 0;
             countGone += data.daysPerMonth;
           }
         }
       }
       data.year += rFreq;
     }
     // Skip the remaining whole years to at least endYear.
     int recurYears = (endYear - data.year + rFreq - 1) / rFreq;
     if ((endYear - data.year)%rFreq == 0
     &&  *rYearNums.getLast() <= endMonth)
       ++recurYears;    // required year is after endYear
     if (recurYears) {
       int n = recurYears * data.count;
       if (static_cast<uint>(n) > countTogo)
         return 0;     // reached end of recurrence
       countTogo -= n;
       countGone += n;
       data.year += recurYears * rFreq;
     }
 
     // Check the last year in the recurrence
     for (QPtrListIterator<int> im(rYearNums); im.current(); ++im) {
       data.month = *im.current();
       int ended = data.yearMonth() - endYearMonth;
       if (ended >= 0) {
         // This is the end month, so check each day
         days = data.dayList();
         for (id = days->begin();  id != days->end();  ++id) {
           ++countGone;
           if (ended > 0 || (ended == 0 && *id > endDay)) {
             data.day = *id;
             goto ex;
           }
           if (--countTogo == 0)
             return 0;
         }
       } else {
         // Skip the whole month.
         if (static_cast<uint>(data.daysPerMonth) >= countTogo)
           return 0;
         countGone += data.daysPerMonth;
       }
     }
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 
 /* Find count and, depending on 'func', the end date of an annual recurrence by day.
  * Reply = total number of occurrences up to 'enddate', or 0 if error.
  * If 'func' = END_DATE_AND_COUNT or NEXT_AFTER_DATE, 'enddate' is updated to the
  * recurrence end date.
  */
 struct Recurrence::YearlyDayData {
     int    year;       // current year
     int    day;        // current day of year 1..366
     bool   varies;     // true if day 366 recurs
   private:
     int    daycount;
   public:
     YearlyDayData(const Recurrence* r, const QDate &date)
              : year(date.year()), day(date.dayOfYear()), varies(*r->rYearNums.getLast() == 366),
                daycount(r->rYearNums.count()) { }
     bool  leapYear() const       { return QDate::leapYear(year); }
     int   dayCount() const       { return daycount - (varies && !QDate::leapYear(year) ? 1 : 0); }
     bool  isMaxDayCount() const  { return !varies || QDate::leapYear(year); }
     QDate date() const           { return QDate(year, 1, 1).addDays(day - 1); }
 };
 
 int Recurrence::yearlyDayCalc(PeriodFunc func, QDate &enddate) const
 {
   if (rYearNums.isEmpty())
     return 0;
   YearlyDayData data(this, mRecurStart.date());
   switch (func) {
     case END_DATE_AND_COUNT:
       return yearlyDayCalcEndDate(enddate, data);
     case COUNT_TO_DATE:
       return yearlyDayCalcToDate(enddate, data);
     case NEXT_AFTER_DATE:
       return yearlyDayCalcNextAfter(enddate, data);
   }
   return 0;
 }
 
 int Recurrence::yearlyDayCalcEndDate(QDate &enddate, YearlyDayData &data) const
 {
   uint countTogo = rDuration + mRecurExDatesCount;
   int countGone = 0;
 
   if (data.day > 1) {
     // Check what remains of the start year
     bool leapOK = data.isMaxDayCount();
     for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
       int d = *it.current();
       if (d >= data.day && (leapOK || d < 366)) {
         ++countGone;
         if (--countTogo == 0) {
           data.day = d;
           goto ex;
         }
       }
     }
     data.day = 1;
     data.year += rFreq;
   }
 
   if (data.varies) {
     // The number of recurrences is different in leap years,
     // so check year-by-year.
     for ( ; ; ) {
       uint n = data.dayCount();
       if (n >= countTogo)
         break;
       countTogo -= n;
       countGone += n;
       data.year += rFreq;
     }
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years, but leave at least
     // 1 recurrence remaining, in order to get its date.
     int daysPerYear = rYearNums.count();
     int wholeYears = (countTogo - 1) / daysPerYear;
     data.year += wholeYears * rFreq;
     countGone += wholeYears * daysPerYear;
     countTogo -= wholeYears * daysPerYear;
   }
   if (countTogo) {
     // Check the last year in the recurrence
     for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
       ++countGone;
       if (--countTogo == 0) {
         data.day = *it.current();
         break;
       }
     }
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 int Recurrence::yearlyDayCalcToDate(const QDate &enddate, YearlyDayData &data) const
 {
   int countGone = 0;
   int countMax  = (rDuration > 0) ? rDuration + mRecurExDatesCount : INT_MAX;
   int endYear = enddate.year();
   int endDay  = enddate.dayOfYear();
 
   if (data.day > 1) {
     // Check what remains of the start year
     bool leapOK = data.isMaxDayCount();
     for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
       int d = *it.current();
       if (d >= data.day && (leapOK || d < 366)) {
         if (data.year == endYear && d > endDay)
           return countGone;
         if (++countGone >= countMax)
           return countMax;
       }
     }
     data.day = 1;
     data.year += rFreq;
   }
 
   if (data.varies) {
     // The number of recurrences is different in leap years,
     // so check year-by-year.
     while (data.year < endYear) {
       uint n = data.dayCount();
       countGone += n;
       if (countGone >= countMax)
         return countMax;
       data.year += rFreq;
     }
     if (data.year > endYear)
       return countGone;
   } else {
     // The number of recurrences is the same every year.
     // Skip the remaining whole years.
     int wholeYears = endYear - data.year;
     countGone += (wholeYears / rFreq) * rYearNums.count();
     if (countGone >= countMax)
       return countMax;
     if (wholeYears % rFreq)
       return countGone;      // end year isn't a recurrence year
     data.year = endYear;
   }
 
   if (data.year <= endYear) {
     // Check the last year in the recurrence
     for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
       if (*it.current() > endDay)
         return countGone;
       if (++countGone >= countMax)
         return countMax;
     }
   }
   return countGone;
 }
 
 int Recurrence::yearlyDayCalcNextAfter(QDate &enddate, YearlyDayData &data) const
 {
   uint countTogo = (rDuration > 0) ? rDuration + mRecurExDatesCount : UINT_MAX;
   int  countGone = 0;
   int  endYear = enddate.year();
   int  endDay  = enddate.dayOfYear();
 
   if (data.day > 1) {
     // Check what remains of the start year
     bool leapOK = data.isMaxDayCount();
     for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
       int d = *it.current();
       if (d >= data.day && (leapOK || d < 366)) {
         ++countGone;
         if (data.year == endYear && d > endDay) {
           data.day = d;
           goto ex;
         }
         if (--countTogo == 0)
           return 0;
       }
     }
     data.day = 1;
     data.year += rFreq;
   }
 
   if (data.varies) {
     // The number of recurrences is different in leap years,
     // so check year-by-year.
     while (data.year <= endYear) {
       uint n = data.dayCount();
       if (data.year == endYear && *rYearNums.getLast() > endDay)
         break;
       if (n >= countTogo)
         break;
       countTogo -= n;
       countGone += n;
       data.year += rFreq;
     }
   } else {
     // The number of recurrences is the same every year,
     // so skip the year-by-year check.
     // Skip the remaining whole years to at least endYear.
     int daysPerYear = rYearNums.count();
     int recurYears = (endYear - data.year + rFreq - 1) / rFreq;
     if ((endYear - data.year)%rFreq == 0
     &&  *rYearNums.getLast() <= endDay)
       ++recurYears;    // required year is after endYear
     if (recurYears) {
       int n = recurYears * daysPerYear;
       if (static_cast<uint>(n) > countTogo)
         return 0;     // reached end of recurrence
       countTogo -= n;
       countGone += n;
       data.year += recurYears * rFreq;
     }
   }
 
   // Check the last year in the recurrence
   for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
     ++countGone;
     int d = *it.current();
     if (data.year > endYear || d > endDay) {
       data.day = d;
       break;
     }
     if (--countTogo == 0)
       return 0;
   }
 ex:
   enddate = data.date();
   return countGone;
 }
 
 // Get the days in this month which recur, in numerical order.
 // Parameters: daysInMonth = number of days in this month
 //             startDayOfWeek = day of week for first day of month.
 void Recurrence::getMonthlyPosDays(QValueList<int> &list, int daysInMonth, int startDayOfWeek) const
 {
   list.clear();
   int endDayOfWeek = (startDayOfWeek + daysInMonth - 2) % 7 + 1;
   // Go through the list, compiling a bit list of actual day numbers
   Q_UINT32 days = 0;
   for (QPtrListIterator<rMonthPos> pos(rMonthPositions); pos.current(); ++pos) {
     int weeknum = pos.current()->rPos - 1;   // get 0-based week number
     QBitArray &rdays = pos.current()->rDays;
     if (pos.current()->negative) {
       // nth days before the end of the month
       for (uint i = 1; i <= 7; ++i) {
         if (rdays.testBit(i - 1)) {
           int day = daysInMonth - weeknum*7 - (endDayOfWeek - i + 7) % 7;
           if (day > 0)
             days |= 1 << (day - 1);
         }
       }
     } else {
       // nth days after the start of the month
       for (uint i = 1; i <= 7; ++i) {
         if (rdays.testBit(i - 1)) {
           int day = 1 + weeknum*7 + (i - startDayOfWeek + 7) % 7;
           if (day <= daysInMonth)
             days |= 1 << (day - 1);
         }
       }
     }
   }
   // Compile the ordered list
   Q_UINT32 mask = 1;
   for (int i = 0; i < daysInMonth; mask <<= 1, ++i) {
     if (days & mask)
       list.append(i + 1);
   }
 }
 
 // Get the number of days in the month which recur.
 // Reply = -1 if the number varies from month to month.
 int Recurrence::countMonthlyPosDays() const
 {
   int count = 0;
   Q_UINT8 positive[5] = { 0, 0, 0, 0, 0 };
   Q_UINT8 negative[4] = { 0, 0, 0, 0 };
   for (QPtrListIterator<rMonthPos> pos(rMonthPositions); pos.current(); ++pos) {
     int weeknum = pos.current()->rPos;
     Q_UINT8* wk;
     if (pos.current()->negative) {
       // nth days before the end of the month
       if (weeknum > 4)
         return -1;       // days in 5th week are often missing
       wk = &negative[4 - weeknum];
     } else {
       // nth days after the start of the month
       if (weeknum > 4)
         return -1;       // days in 5th week are often missing
       wk = &positive[weeknum - 1];
     }
     QBitArray &rdays = pos.current()->rDays;
     for (uint i = 0; i < 7; ++i) {
       if (rdays.testBit(i)) {
         ++count;
         *wk |= (1 << i);
       }
     }
   }
   // Check for any possible days which could be duplicated by
   // a positive and a negative position.
   for (int i = 0; i < 4; ++i) {
     if (negative[i] & (positive[i] | positive[i+1]))
       return -1;
   }
   return count;
 }
 
 // Get the days in this month which recur, in numerical order.
 // Reply = true if day numbers varies from month to month.
 bool Recurrence::getMonthlyDayDays(QValueList<int> &list, int daysInMonth) const
 {
   list.clear();
   bool variable = false;
   Q_UINT32 days = 0;
   for (QPtrListIterator<int> it(rMonthDays); it.current(); ++it) {
     int day = *it.current();
     if (day > 0) {
       // date in the month
       if (day <= daysInMonth)
         days |= 1 << (day - 1);
       if (day > 28 && day <= 31)
         variable = true;     // this date does not appear in some months
     } else if (day < 0) {
       // days before the end of the month
       variable = true;       // this date varies depending on the month length
       day = daysInMonth + day;    // zero-based day of month
       if (day >= 0)
         days |= 1 << day;
     }
   }
   // Compile the ordered list
   Q_UINT32 mask = 1;
   for (int i = 0; i < daysInMonth; mask <<= 1, ++i) {
     if (days & mask)
       list.append(i + 1);
   }
   return variable;
 }
 
 // Get the months which recur, in numerical order, for both leap years and non-leap years.
 // N.B. If February 29th recurs on March 1st in non-leap years, February (not March) is
 // included in the non-leap year month list.
 // Reply = true if February 29th also recurs.
 bool Recurrence::getYearlyMonthMonths(int day, QValueList<int> &list, QValueList<int> &leaplist) const
 {
   list.clear();
   leaplist.clear();
   bool feb29 = false;
   for (QPtrListIterator<int> it(rYearNums); it.current(); ++it) {
     int month = *it.current();
     if (month == 2) {
       if (day <= 28) {
         list.append(month);     // date appears in February
         leaplist.append(month);
       }
       else if (day == 29) {
         // February 29th
         leaplist.append(month);
         switch (mFeb29YearlyType) {
           case rFeb28:
           case rMar1:
             list.append(2);
             break;
           case rFeb29:
             break;
         }
         feb29 = true;
       }
     }
     else if (day <= 30 || QDate(2000, month, 1).daysInMonth() == 31) {
       list.append(month);       // date appears in every month
       leaplist.append(month);
     }
   }
   return feb29;
 }
 
 /* From the recurrence day of the week list, get the earliest day in the
  * specified week which is >= the startDay.
  * Parameters:  startDay = 1..7 (Monday..Sunday)
  *              useWeekStart = true to end search at day before next rWeekStart
  *                           = false to search for a full 7 days
  * Reply = day of the week (1..7), or 0 if none found.
  */
 int Recurrence::getFirstDayInWeek(int startDay, bool useWeekStart) const
 {
   int last = ((useWeekStart ? rWeekStart : startDay) + 5)%7;
   for (int i = startDay - 1;  ;  i = (i + 1)%7) {
     if (rDays.testBit(i))
       return i + 1;
     if (i == last)
       return 0;
   }
 }
 
 /* From the recurrence day of the week list, get the latest day in the
  * specified week which is <= the endDay.
  * Parameters:  endDay = 1..7 (Monday..Sunday)
  *              useWeekStart = true to end search at rWeekStart
  *                           = false to search for a full 7 days
  * Reply = day of the week (1..7), or 0 if none found.
  */
 int Recurrence::getLastDayInWeek(int endDay, bool useWeekStart) const
 {
   int last = useWeekStart ? rWeekStart - 1 : endDay%7;
   for (int i = endDay - 1;  ;  i = (i + 6)%7) {
     if (rDays.testBit(i))
       return i + 1;
     if (i == last)
       return 0;
   }
 }
 
 /* From the recurrence monthly day number list or monthly day of week/week of
  * month list, get the earliest day in the specified month which is >= the
  * earliestDate.
  */
 QDate Recurrence::getFirstDateInMonth(const QDate &earliestDate) const
 {
   int earliestDay = earliestDate.day();
   int daysInMonth = earliestDate.daysInMonth();
   switch (recurs) {
     case rMonthlyDay: {
       int minday = daysInMonth + 1;
       for (QPtrListIterator<int> it(rMonthDays);  it.current();  ++it) {
         int day = *it.current();
         if (day < 0)
           day = daysInMonth + day + 1;
         if (day >= earliestDay  &&  day < minday)
           minday = day;
       }
       if (minday <= daysInMonth)
         return earliestDate.addDays(minday - earliestDay);
       break;
     }
     case rMonthlyPos:
     case rYearlyPos: {
       QDate monthBegin(earliestDate.addDays(1 - earliestDay));
       QValueList<int> dayList;
       getMonthlyPosDays(dayList, daysInMonth, monthBegin.dayOfWeek());
       for (QValueList<int>::ConstIterator id = dayList.begin();  id != dayList.end();  ++id) {
         if (*id >= earliestDay)
           return monthBegin.addDays(*id - 1);
       }
       break;
     }
   }
   return QDate();
 }
 
 /* From the recurrence monthly day number list or monthly day of week/week of
  * month list, get the latest day in the specified month which is <= the
  * latestDate.
  */
 QDate Recurrence::getLastDateInMonth(const QDate &latestDate) const
 {
   int latestDay = latestDate.day();
   int daysInMonth = latestDate.daysInMonth();
   switch (recurs) {
     case rMonthlyDay: {
       int maxday = -1;
       for (QPtrListIterator<int> it(rMonthDays);  it.current();  ++it) {
         int day = *it.current();
         if (day < 0)
           day = daysInMonth + day + 1;
         if (day <= latestDay  &&  day > maxday)
           maxday = day;
       }
       if (maxday > 0)
         return QDate(latestDate.year(), latestDate.month(), maxday);
       break;
     }
     case rMonthlyPos:
     case rYearlyPos: {
       QDate monthBegin(latestDate.addDays(1 - latestDay));
       QValueList<int> dayList;
       getMonthlyPosDays(dayList, daysInMonth, monthBegin.dayOfWeek());
       for (QValueList<int>::ConstIterator id = dayList.fromLast();  id != dayList.end();  --id) {
         if (*id <= latestDay)
           return monthBegin.addDays(*id - 1);
       }
       break;
     }
   }
   return QDate();
 }
 
 /* From the recurrence yearly month list or yearly day list, get the earliest
  * month or day in the specified year which is >= the earliestDate.
  * Note that rYearNums is sorted in numerical order.
  */
 QDate Recurrence::getFirstDateInYear(const QDate &earliestDate) const
 {
   QPtrListIterator<int> it(rYearNums);
   switch (recurs) {
     case rYearlyMonth: {
       int day = recurStart().date().day();
       int earliestYear  = earliestDate.year();
       int earliestMonth = earliestDate.month();
       int earliestDay   = earliestDate.day();
       if (earliestDay > day) {
         // The earliest date is later in the month than the recurrence date,
         // so skip to the next month before starting to check
         if (++earliestMonth > 12)
           return QDate();
       }
       for ( ;  it.current();  ++it) {
         int month = *it.current();
         if (month >= earliestMonth) {
           if (day <= 28  ||  QDate::isValid(earliestYear, month, day))
             return QDate(earliestYear, month, day);
           if (day == 29  &&  month == 2) {
             // It's a recurrence on February 29th, in a non-leap year
             switch (mFeb29YearlyType) {
               case rMar1:
                 return QDate(earliestYear, 3, 1);
               case rFeb28:
                 if (earliestDay <= 28)
                   return QDate(earliestYear, 2, 28);
                 break;
               case rFeb29:
                 break;
             }
           }
         }
       }
       break;
     }
     case rYearlyPos: {
       QValueList<int> dayList;
       int earliestYear  = earliestDate.year();
       int earliestMonth = earliestDate.month();
       int earliestDay   = earliestDate.day();
       for ( ;  it.current();  ++it) {
         int month = *it.current();
         if (month >= earliestMonth) {
           QDate monthBegin(earliestYear, month, 1);
           getMonthlyPosDays(dayList, monthBegin.daysInMonth(), monthBegin.dayOfWeek());
           for (QValueList<int>::ConstIterator id = dayList.begin();  id != dayList.end();  ++id) {
             if (*id >= earliestDay)
               return monthBegin.addDays(*id - 1);
           }
           earliestDay = 1;
         }
       }
       break;
     }
     case rYearlyDay: {
       int earliestDay = earliestDate.dayOfYear();
       for ( ;  it.current();  ++it) {
         int day = *it.current();
         if (day >= earliestDay && (day <= 365 || day <= earliestDate.daysInYear()))
           return earliestDate.addDays(day - earliestDay);
       }
       break;
     }
   }
   return QDate();
 }
 
 /* From the recurrence yearly month list or yearly day list, get the latest
  * month or day in the specified year which is <= the latestDate.
  * Note that rYearNums is sorted in numerical order.
  */
 QDate Recurrence::getLastDateInYear(const QDate &latestDate) const
 {
   QPtrListIterator<int> it(rYearNums);
   switch (recurs) {
     case rYearlyMonth: {
       int day = recurStart().date().day();
       int latestYear  = latestDate.year();
       int latestMonth = latestDate.month();
       if (latestDate.day() > day) {
         // The latest date is earlier in the month than the recurrence date,
         // so skip to the previous month before starting to check
         if (--latestMonth <= 0)
           return QDate();
       }
       for (it.toLast();  it.current();  --it) {
         int month = *it.current();
         if (month <= latestMonth) {
           if (day <= 28  ||  QDate::isValid(latestYear, month, day))
             return QDate(latestYear, month, day);
           if (day == 29  &&  month == 2) {
             // It's a recurrence on February 29th, in a non-leap year
             switch (mFeb29YearlyType) {
               case rMar1:
                 if (latestMonth >= 3)
                   return QDate(latestYear, 3, 1);
                 break;
               case rFeb28:
                 return QDate(latestYear, 2, 28);
               case rFeb29:
                 break;
             }
           }
         }
       }
       break;
     }
     case rYearlyPos: {
       QValueList<int> dayList;
       int latestYear  = latestDate.year();
       int latestMonth = latestDate.month();
       int latestDay   = latestDate.day();
       for (it.toLast();  it.current();  --it) {
         int month = *it.current();
         if (month <= latestMonth) {
           QDate monthBegin(latestYear, month, 1);
           getMonthlyPosDays(dayList, monthBegin.daysInMonth(), monthBegin.dayOfWeek());
           for (QValueList<int>::ConstIterator id = dayList.fromLast();  id != dayList.end();  --id) {
             if (*id <= latestDay)
               return monthBegin.addDays(*id - 1);
           }
           latestDay = 31;
         }
       }
       break;
     }
     case rYearlyDay: {
       int latestDay = latestDate.dayOfYear();
       for (it.toLast();  it.current();  --it) {
         int day = *it.current();
         if (day <= latestDay)
           return latestDate.addDays(day - latestDay);
       }
       break;
     }
   }
   return QDate();
 }
 
 void Recurrence::dump() const
 {
   kdDebug() << "Recurrence::dump():" << endl;
 
   kdDebug() << "  type: " << recurs << endl;
   
   kdDebug() << "  rDays: " << endl;
   int i;
   for( i = 0; i < 7; ++i ) {
     kdDebug() << "    " << i << ": "
               << ( rDays.testBit( i ) ? "true" : "false" ) << endl;
   }
 }
diff --git a/libkcal/sharpformat.cpp b/libkcal/sharpformat.cpp
index defdb09..89eb72f 100644
--- a/libkcal/sharpformat.cpp
+++ b/libkcal/sharpformat.cpp
@@ -1,1018 +1,1019 @@
 /*
     This file is part of libkcal.
 
     Copyright (c) 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., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #include <qdatetime.h>
 #include <qstring.h>
 #include <qapplication.h>
 #include <qptrlist.h>
 #include <qregexp.h>
 #include <qmessagebox.h>
 #include <qclipboard.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qtextcodec.h>
 #include <qxml.h>
 #include <qlabel.h>
 
 #include <kdebug.h>
 #include <klocale.h>
 #include <kglobal.h>
 
 #include "calendar.h"
 #include "alarm.h"
 #include "recurrence.h"
 #include "calendarlocal.h"
 
 #include "sharpformat.h"
 #include "syncdefines.h"
 
 using namespace KCal;
 
 //CARDID,CATEGORY,DSRP,PLCE,MEM1,TIM1,TIM2,ADAY,ARON,ARMN,ARSD,RTYP,RFRQ,RPOS,RDYS,REND,REDT,ALSD,ALED,MDAY
 //  0       1      2     3   4    5     6   7    8     9   10   11   12   13   14   15   16   17   18   19
 
 //ARSD  silentalarm = 0
 // 11 RTYP 225 no /0 dialy/ 1 weekly/ 3 month by date/ 2 month by day(pos)/ yearly
 // 12 RFRQ
 // 13 RPOS pos = 4. monday in month
 // 14 RDYS days: 1 mon/ 2 tue .. 64 sun
 // 15 REND 0 = no end/ 1 = end
 // 16 REDT rec end dt  
 //ALSD
 //ALED
 //MDAY
 
 class SharpParser : public QObject
 {
   public:
     SharpParser( Calendar *calendar ) : mCalendar( calendar ) {
         oldCategories = 0;
     }
   
     bool startElement( Calendar *existingCalendar, const QStringList & attList, QString qName )
     {
         int i = 1;
         bool skip = true;
         int max = attList.count() -2;
         while ( i < max ) {
             if ( !attList[i].isEmpty() ) {
                 skip = false;
                 break;
             } 
             ++i ;
         }
         if ( skip )
             return false;
         ulong cSum = SharpFormat::getCsum(attList );
         
         if ( qName == "Event" ) {
             Event *event;
             event = existingCalendar->event( "Sharp_DTM",attList[0] );
             if ( event )
                 event = (Event*)event->clone();
             else
                 event = new Event;
             event->setID("Sharp_DTM", attList[0] );
             event->setCsum( "Sharp_DTM", QString::number( cSum ));
             event->setTempSyncStat(SYNC_TEMPSTATE_NEW_EXTERNAL );
 
             event->setSummary( attList[2] );
             event->setLocation( attList[3] );
             event->setDescription( attList[4]  );
             if ( attList[7] == "1" ) {
                 event->setDtStart( QDateTime(fromString( attList[17]+"T000000", false ).date(),QTime(0,0,0 ) ));
                 event->setDtEnd( QDateTime(fromString( attList[18]+"T000000", false ).date(),QTime(0,0,0 )));
                 event->setFloats( true );
             } else {
                 event->setFloats( false );
                 event->setDtStart( fromString( attList[5] ) );
                 event->setDtEnd( fromString( attList[6]  ));
             }
         
             QString rtype = attList[11];
             if ( rtype != "255" ) {
                 //  qDebug("recurs ");
                 QDate startDate = event->dtStart().date();
         
                 QString freqStr = attList[12];
                 int freq = freqStr.toInt();
 
                 QString hasEndDateStr = attList[15] ;
                 bool hasEndDate = hasEndDateStr == "1";
         
                 QString endDateStr = attList[16];
                 QDate endDate = fromString( endDateStr ).date();
 
                 QString weekDaysStr = attList[14];
                 uint weekDaysNum = weekDaysStr.toInt();
         
                 QBitArray weekDays( 7 );
                 int i;
                 int bb = 1;
                 for( i = 1; i <= 7; ++i ) {
                     weekDays.setBit( i - 1, ( bb & weekDaysNum )); 
                     bb =  2 << (i-1);
                     //qDebug(" %d bit %d ",i-1,weekDays.at(i-1) );
                 }
                 // qDebug("next ");
                 QString posStr = attList[13];
                 int pos = posStr.toInt();
                 Recurrence *r = event->recurrence();
 
                 if ( rtype == "0" ) {
                     if ( hasEndDate ) r->setDaily( freq, endDate );
                     else r->setDaily( freq, -1 );
                 } else if ( rtype == "1" ) {
                     if ( hasEndDate ) r->setWeekly( freq, weekDays, endDate );
                     else r->setWeekly( freq, weekDays, -1 );
                 } else if ( rtype == "3" ) {
                     if ( hasEndDate )
                         r->setMonthly( Recurrence::rMonthlyDay, freq, endDate );
                     else
                         r->setMonthly( Recurrence::rMonthlyDay, freq, -1 );
                     r->addMonthlyDay( startDate.day() );
                 } else if ( rtype == "2" ) {
                     if ( hasEndDate )
                         r->setMonthly( Recurrence::rMonthlyPos, freq, endDate );
                     else
                         r->setMonthly( Recurrence::rMonthlyPos, freq, -1 );
                     QBitArray days( 7 );
                     days.fill( false );
                     days.setBit( startDate.dayOfWeek() - 1 );
                     r->addMonthlyPos( pos, days );
                 } else if ( rtype == "4" ) {
                     if ( hasEndDate )
                         r->setYearly( Recurrence::rYearlyMonth, freq, endDate );
                     else
                         r->setYearly( Recurrence::rYearlyMonth, freq, -1 );
                     r->addYearlyNum( startDate.month() );
                 }
             } else {
                 event->recurrence()->unsetRecurs();
             }
         
             QString categoryList = attList[1] ;
             event->setCategories( lookupCategories( categoryList ) );
 
             // strange 0 semms to mean: alarm enabled
             if ( attList[8] == "0" ) {
                 Alarm *alarm;
                 if (  event->alarms().count() > 0 )
                     alarm = event->alarms().first();
                 else {
                     alarm = new Alarm( event );
                     event->addAlarm( alarm );
+                    alarm->setType( Alarm::Audio );
                 }
-                alarm->setType( Alarm::Audio );
+                //alarm->setType( Alarm::Audio );
                 alarm->setEnabled( true );
                 int alarmOffset = attList[9].toInt();
                 alarm->setStartOffset( alarmOffset * -60 );
             } else {
                 Alarm *alarm;
                 if (  event->alarms().count() > 0 ) {
                     alarm = event->alarms().first();
                     alarm->setType( Alarm::Audio );
                     alarm->setStartOffset( -60*15 );
                     alarm->setEnabled( false );
                 }
             }
         
             mCalendar->addEvent( event);
         } else if ( qName == "Todo" ) {
             Todo *todo;
 
             todo = existingCalendar->todo( "Sharp_DTM", attList[0] );
             if (todo )
                 todo = (Todo*)todo->clone();
             else
                 todo = new Todo;
 
 //CARDID,CATEGORY,ETDY,LTDY,FNDY,MARK,PRTY,TITL,MEM1
 //  0      1       2    3    4    5    6    7    8
 //1,,,,,1,4,Loch zumachen,""
 //3,Privat,20040317T000000,20040318T000000,20040319T000000,0,5,Call bbb,"notes123 bbb gggg ""bb ""   "
 //2,"Familie,Freunde,Holiday",20040318T000000,20040324T000000,20040317T000000,1,2,tod2,notes
      
             todo->setID( "Sharp_DTM", attList[0]);
             todo->setCsum( "Sharp_DTM", QString::number( cSum ));
             todo->setTempSyncStat( SYNC_TEMPSTATE_NEW_EXTERNAL );
       
             todo->setSummary( attList[7] );
             todo->setDescription( attList[8]);
         
             int priority = attList[6].toInt();
             if ( priority == 0 ) priority = 3;
             todo->setPriority( priority );
         
             QString categoryList = attList[1];
             todo->setCategories( lookupCategories( categoryList ) );
         
        
         
             QString hasDateStr = attList[3]; // due
             if ( !hasDateStr.isEmpty() ) {
                 if ( hasDateStr.right(6) == "000000" ) {
                     todo->setDtDue( QDateTime(fromString( hasDateStr, false ).date(), QTime(0,0,0 )) );
                     todo->setFloats( true );
                 }
                 else {
                     todo->setDtDue( fromString( hasDateStr ) );
                     todo->setFloats( false );
                 }
                 
                 todo->setHasDueDate( true );
             }
             hasDateStr = attList[2];//start
             if ( !hasDateStr.isEmpty() ) {
           
                 todo->setDtStart( fromString( hasDateStr ) );
                 todo->setHasStartDate( true);
             } else
                 todo->setHasStartDate( false );
             hasDateStr = attList[4];//completed
             if ( !hasDateStr.isEmpty() ) {
                 todo->setCompleted(fromString( hasDateStr ) );
             }
             QString completedStr = attList[5];
             if ( completedStr == "0" )
                 todo->setCompleted( true );
             else
                 todo->setCompleted( false );
             mCalendar->addTodo( todo );
         
         } else if ( qName == "Category" ) {
             /*
               QString id = attributes.value( "id" );
               QString name = attributes.value( "name" );
               setCategory( id, name );
             */
         }
         //qDebug("end ");
         return true;
     }
 
    
     void  setCategoriesList ( QStringList * c )
     {
         oldCategories = c;
     }
 
    QDateTime fromString ( QString  s, bool useTz = true ) {
        QDateTime dt;
        int y,m,t,h,min,sec;
        y = s.mid(0,4).toInt();
        m = s.mid(4,2).toInt();
        t = s.mid(6,2).toInt();
        h = s.mid(9,2).toInt();
        min = s.mid(11,2).toInt();
        sec = s.mid(13,2).toInt();
        dt = QDateTime(QDate(y,m,t), QTime(h,min,sec));
       int offset =  KGlobal::locale()->localTimeOffset( dt );
       if ( useTz )
           dt =  dt.addSecs ( offset*60);
        return dt;
 
    }
   protected:
     QDateTime toDateTime( const QString &value )
     {
       QDateTime dt;
       dt.setTime_t( value.toUInt() );
       
       return dt;
     }
 
     QStringList lookupCategories( const QString &categoryList )
     {
       QStringList categoryIds = QStringList::split( ";", categoryList );
       QStringList categories;
       QStringList::ConstIterator it;
       for( it = categoryIds.begin(); it != categoryIds.end(); ++it ) {
           QString cate = category( *it );
           if ( oldCategories ) {
               if ( ! oldCategories->contains( cate ) )
                   oldCategories->append( cate );
               }
           categories.append(cate );
       }
       return categories;
     }
 
   private:
     Calendar *mCalendar;
     QStringList * oldCategories;
     static QString category( const QString &id )
     {
       QMap<QString,QString>::ConstIterator it = mCategoriesMap.find( id );
       if ( it == mCategoriesMap.end() ) return id;
       else return *it;
     }
 
     static void setCategory( const QString &id, const QString &name )
     {
       mCategoriesMap.insert( id, name );
     }
 
     static QMap<QString,QString> mCategoriesMap;
 };
 
 QMap<QString,QString> SharpParser::mCategoriesMap;
 
 SharpFormat::SharpFormat()
 {
     mCategories = 0;
 }
 
 SharpFormat::~SharpFormat()
 {
 }
 ulong SharpFormat::getCsum( const QStringList &  attList)
 {
     int max = attList.count() -1;
     ulong cSum = 0;
     int j,k,i;
     int add;
     for ( i = 1; i < max ; ++i ) {
         QString s = attList[i];
         if ( ! s.isEmpty() ){
             j = s.length();
             for ( k = 0; k < j; ++k ) {
                 int mul = k +1;
                 add = s[k].unicode ();
                 if ( k < 16 )
                     mul = mul * mul;
                 add = add * mul *i*i*i;
                 cSum += add;
             }
         }
     }
     return cSum;
 
 }
 #include <stdlib.h>
-#define DEBUGMODE false
+//#define DEBUGMODE false
+#define DEBUGMODE true
 bool SharpFormat::load( Calendar *calendar, Calendar *existngCal )
 {
 
    
     bool debug = DEBUGMODE;
-    //debug = true;
     QString text;
     QString codec = "utf8";
     QLabel status ( i18n("Reading events ..."), 0 );
     
     int w = status.sizeHint().width()+20 ;
     if ( w < 200 ) w = 200;
     int h = status.sizeHint().height()+20 ;
     int dw = QApplication::desktop()->width();
     int dh = QApplication::desktop()->height();
     status.setCaption(i18n("Reading DTM Data") );
     status.setGeometry( (dw-w)/2, (dh - h )/2 ,w,h );
     status.show();
     status.raise();
     qApp->processEvents();
     QString  fileName; 
     if ( ! debug ) {
         fileName = "/tmp/kopitempout";
         QString command ="db2file datebook -r -c "+ codec + " > " + fileName;
         system (  command.latin1() );
     } else {
         fileName = "/tmp/events.txt";
         
     }  
     QFile file( fileName );
     if (!file.open( IO_ReadOnly ) ) {
         return false;
         
     } 
     QTextStream ts( &file );
     ts.setCodec( QTextCodec::codecForName("utf8") );
     text = ts.read();
     file.close();  
     status.setText(  i18n("Processing events ...") );
     status.raise();
     qApp->processEvents();
     fromString2Cal( calendar, existngCal, text, "Event" ); 
     status.setText(  i18n("Reading todos ...") );
     qApp->processEvents();
     if ( ! debug ) {
         fileName = "/tmp/kopitempout";
         QString command = "db2file todo -r -c " + codec+ " > " + fileName;
         system (  command.latin1() );
     } else {
         fileName = "/tmp/todo.txt";
     } 
     file.setName( fileName );
     if (!file.open( IO_ReadOnly ) ) {
         return false;
         
     } 
     ts.setDevice( &file );
     text = ts.read();
     file.close();  
 
     status.setText(  i18n("Processing todos ...") );
     status.raise();
     qApp->processEvents();
     fromString2Cal( calendar, existngCal, text, "Todo" ); 
     return true;
 }
 int  SharpFormat::getNumFromRecord( QString answer, Incidence* inc ) 
 {
     int retval = -1;
     QStringList templist; 
     QString tempString;         
     int start = 0;
     int len = answer.length();
     int end = answer.find ("\n",start)+1;
     bool ok = true;
     start = end;
     int ccc = 0;
     while ( start > 0 ) {
         templist.clear();
         ok = true;
         int loopCount = 0;
         while ( ok ) {
             ++loopCount;
             if ( loopCount >  25 ) {
                 qDebug("KO: Error in while loop"); 
                 ok = false;
                 start = 0;
                 break;
             }
             if ( ok )
                 tempString = getPart(  answer, ok, start );
             if ( start >= len || start == 0 ) {
                 start = 0;
                 ok = false;
             }
             if ( tempString.right(1) =="\n" )
                 tempString = tempString.left( tempString.length()-1);
            
             templist.append( tempString ); 
         }
         ++ccc;
         if ( ccc == 2 && loopCount < 25 ) { 
             start = 0;
             bool ok;
             int newnum = templist[0].toInt( &ok );
             if ( ok && newnum > 0) {
                 retval = newnum; 
                 inc->setID( "Sharp_DTM",templist[0] );
                 inc->setCsum( "Sharp_DTM", QString::number( getCsum( templist ) ));
                 inc->setTempSyncStat( SYNC_TEMPSTATE_NEW_ID );
             }
         }
     }
     //qDebug("getNumFromRecord returning : %d ", retval);
     return retval;
 }
 bool SharpFormat::save( Calendar *calendar)
 {
 
     QLabel status ( i18n("Processing/adding events ..."), 0 );
     int w = status.sizeHint().width()+20 ;
     if ( w < 200 ) w = 200;
     int h = status.sizeHint().height()+20 ;
     int dw = QApplication::desktop()->width();
     int dh = QApplication::desktop()->height();
     status.setCaption(i18n("Writing DTM Data") );
     status.setGeometry( (dw-w)/2, (dh - h )/2 ,w,h );
     status.show();
     status.raise();
     qApp->processEvents();
     bool debug = DEBUGMODE;
     QString codec = "utf8";
     QString answer;
     QString ePrefix = "CARDID,CATEGORY,DSRP,PLCE,MEM1,TIM1,TIM2,ADAY,ARON,ARMN,ARSD,RTYP,RFRQ,RPOS,RDYS,REND,REDT,ALSD,ALED,MDAY\n";
     QString tPrefix = "CARDID,CATEGORY,ETDY,LTDY,FNDY,MARK,PRTY,TITL,MEM1\n";
     QString command;
     QPtrList<Event> er = calendar->rawEvents(); 
     Event* ev = er.first();
     QString  fileName = "/tmp/kopitempout";
     int i = 0;
     QString changeString = ePrefix;
     QString  deleteString = ePrefix;
     bool deleteEnt = false;
     bool changeEnt = false;
     QString message = i18n("Processing event # ");
     int procCount = 0;
     while ( ev ) {
         //qDebug("i %d ", ++i);
         if ( ev->tempSyncStat() != SYNC_TEMPSTATE_NEW_EXTERNAL ) {
             status.setText ( message + QString::number ( ++procCount ) );
              qApp->processEvents();
             QString eString = getEventString( ev );
             if ( ev->tempSyncStat() == SYNC_TEMPSTATE_DELETE ) { // delete
                 // deleting empty strings does not work.
                 // we write first and x  and then delete the record with the x
                 eString = eString.replace( QRegExp(",\"\""),",\"x\"" );
                 changeString += eString + "\n";
                 deleteString += eString + "\n";
                 deleteEnt = true;
                 changeEnt = true;
                 }
             else  if ( ev->getID("Sharp_DTM").isEmpty()  ) {       // add new 
                 command = "(echo \"" + ePrefix + eString + "\" ) | db2file datebook -w -g -c " + codec+ " > "+ fileName;
                 system (  command.utf8() );
                 QFile file( fileName );
                 if (!file.open( IO_ReadOnly ) ) {
                     return false;
                     
                 } 
                 QTextStream ts( &file );
                 ts.setCodec( QTextCodec::codecForName("utf8") );
                 answer = ts.read();
                 file.close();  
                 //qDebug("answer \n%s ", answer.latin1());
                 getNumFromRecord( answer, ev  ) ;
 
             }
             else { // change existing
                 //qDebug("canging %d %d",ev->zaurusStat() ,ev->zaurusId() );
                 //command = "(echo \"" + ePrefix + eString + "\" ) | db2file datebook -w -g -c " + codec+ " > "+ fileName;
                 changeString += eString + "\n";
                 changeEnt = true;
 
             }
         } 
         ev =  er.next();
     }
     status.setText ( i18n("Changing events ...") );
     qApp->processEvents();
     //qDebug("changing... ");
     if ( changeEnt ) {
         QFile file( fileName );
         if (!file.open( IO_WriteOnly ) ) {
             return false;
             
         } 
         QTextStream ts( &file );
         ts.setCodec( QTextCodec::codecForName("utf8") );
         ts << changeString ;
         file.close();
         command = "db2file datebook -w -g -c " + codec+ " < "+ fileName;
         system (  command.latin1() );
         //qDebug("command %s file :\n%s ", command.latin1(), changeString.latin1());
         
     }
     status.setText ( i18n("Deleting events ...") );
     qApp->processEvents();
     //qDebug("deleting... ");
     if ( deleteEnt  ) {
         QFile file( fileName );
         if (!file.open( IO_WriteOnly ) ) {
             return false;
             
         } 
         QTextStream ts( &file );
         ts.setCodec( QTextCodec::codecForName("utf8") );
         ts << deleteString;
         file.close();
         command = "db2file datebook -d -c " + codec+ " < "+ fileName;
         system ( command.latin1() );
         // qDebug("command %s file :\n%s ", command.latin1(), deleteString.latin1());
     }
 
 
     changeString = tPrefix;
     deleteString = tPrefix;
     status.setText ( i18n("Processing todos ...") );
     qApp->processEvents();
     QPtrList<Todo> tl = calendar->rawTodos(); 
     Todo* to = tl.first();
     i = 0;
     message = i18n("Processing todo # ");
     procCount = 0;
     while ( to ) {
        if ( to->tempSyncStat() != SYNC_TEMPSTATE_NEW_EXTERNAL ) {
              status.setText ( message + QString::number ( ++procCount ) );
              qApp->processEvents();
             QString eString = getTodoString( to );
             if ( to->tempSyncStat() == SYNC_TEMPSTATE_DELETE ) { // delete
                 // deleting empty strings does not work.
                 // we write first and x  and then delete the record with the x
                 eString = eString.replace( QRegExp(",\"\""),",\"x\"" );
                 changeString += eString + "\n";
                 deleteString += eString + "\n";
                 deleteEnt = true;
                 changeEnt = true;
                 }
             else  if ( to->getID("Sharp_DTM").isEmpty() ) {       // add new 
                 command = "(echo \"" + tPrefix + eString + "\" ) | db2file todo -w -g -c " + codec+ " > "+ fileName;
                 system (  command.utf8() );
                 QFile file( fileName );
                 if (!file.open( IO_ReadOnly ) ) {
                     return false;
                     
                 } 
                 QTextStream ts( &file );
                 ts.setCodec( QTextCodec::codecForName("utf8") );
                 answer = ts.read();
                 file.close();  
                 //qDebug("answer \n%s ", answer.latin1());
                 getNumFromRecord( answer, to  ) ;
 
             }
             else { // change existing
                 //qDebug("canging %d %d",to->zaurusStat() ,to->zaurusId() );
                 //command = "(echo \"" + ePrefix + eString + "\" ) | db2file datebook -w -g -c " + codec+ " > "+ fileName;
                 changeString += eString + "\n";
                 changeEnt = true;
 
             }
         } 
         
         to = tl.next();
     }
     status.setText ( i18n("Changing todos ...") );
     qApp->processEvents();
     //qDebug("changing... ");
     if ( changeEnt ) {
         QFile file( fileName );
         if (!file.open( IO_WriteOnly ) ) {
             return false;
             
         } 
         QTextStream ts( &file );
         ts.setCodec( QTextCodec::codecForName("utf8") );
         ts << changeString ;
         file.close();
         command = "db2file todo -w -g -c " + codec+ " < "+ fileName;
         system (  command.latin1() );
         //qDebug("command %s file :\n%s ", command.latin1(), changeString.latin1());
         
     }
     status.setText ( i18n("Deleting todos ...") );
     qApp->processEvents();
     //qDebug("deleting... ");
     if ( deleteEnt  ) {
         QFile file( fileName );
         if (!file.open( IO_WriteOnly ) ) {
             return false;
             
         } 
         QTextStream ts( &file );
         ts.setCodec( QTextCodec::codecForName("utf8") );
         ts << deleteString;
         file.close();
         command = "db2file todo -d -c " + codec+ " < "+ fileName;
         system ( command.latin1() );
         // qDebug("command %s file :\n%s ", command.latin1(), deleteString.latin1());
     }
         
   return true;
 }
 QString SharpFormat::dtToString( const QDateTime& dti, bool useTZ )
 {
         QString datestr;
         QString timestr;
     int offset =  KGlobal::locale()->localTimeOffset( dti );
     QDateTime   dt;
     if (useTZ)
         dt =  dti.addSecs ( -(offset*60));
     else
         dt =  dti;
         if(dt.date().isValid()){
                 const QDate& date = dt.date();
                 datestr.sprintf("%04d%02d%02d",
                 date.year(), date.month(), date.day());
         }
         if(dt.time().isValid()){
                 const QTime& time = dt.time();
                 timestr.sprintf("T%02d%02d%02d",
                 time.hour(), time.minute(), time.second());
         }
         return datestr + timestr;
 }
 QString SharpFormat::getEventString( Event* event )
 {
     QStringList list;
     list.append( event->getID("Sharp_DTM")  );
     list.append( event->categories().join(",") );
     if ( !event->summary().isEmpty() )
         list.append( event->summary() );
     else
         list.append("" );
     if ( !event->location().isEmpty() )
         list.append( event->location() );
     else
         list.append("" );
     if ( !event->description().isEmpty() )
         list.append( event->description() );
     else
         list.append( "" );
     if ( event->doesFloat () ) {
         list.append( dtToString( QDateTime(event->dtStart().date(), QTime(0,0,0)), false ));
         list.append( dtToString( QDateTime(event->dtEnd().date(),QTime(23,59,59)), false )); //6
         list.append( "1" );
 
     }
     else {
         list.append( dtToString( event->dtStart()) );
         list.append( dtToString( event->dtEnd()) ); //6
         list.append( "0" );
     }
     bool noAlarm = true;
     if ( event->alarms().count() > 0 ) {
         Alarm * al = event->alarms().first();
         if ( al->enabled() ) {
             noAlarm = false;
             list.append( "0" ); // yes, 0 == alarm
             list.append( QString::number( al->startOffset().asSeconds()/(-60) ) ); 
             if ( al->type() == Alarm::Audio )
                 list.append( "1" ); //  type audio
             else
                 list.append( "0" ); //  type silent     
         }
     }
     if ( noAlarm ) {
         list.append( "1" ); // yes, 1 == no alarm
         list.append( "0" ); // no alarm offset
         list.append( "1" ); // type
     }
     // next is: 11
     // next is: 11-16 are recurrence
     Recurrence* rec = event->recurrence();
    
     bool writeEndDate = false;
     switch ( rec->doesRecur() )
         {
         case Recurrence::rDaily: // 0
             list.append( "0" );
             list.append( QString::number( rec->frequency() ));//12
             list.append( "0" );
             list.append( "0" );
             writeEndDate = true;
             break;
         case Recurrence::rWeekly:// 1
             list.append( "1" );
             list.append( QString::number( rec->frequency()) );//12
             list.append( "0" );
             {
                 int days = 0;
                 QBitArray weekDays = rec->days(); 
                 int i;
                 for( i = 1; i <= 7; ++i ) {
                     if ( weekDays[i-1] ) {
                         days += 1 << (i-1);
                     }
                 }
                 list.append( QString::number( days ) );
             }
             //pending weekdays
             writeEndDate = true;
            
             break;
         case Recurrence::rMonthlyPos:// 2
             list.append( "2" );
             list.append( QString::number( rec->frequency()) );//12
            
             writeEndDate = true; 
             {
                 int count = 1;
                 QPtrList<Recurrence::rMonthPos> rmp;
                 rmp = rec->monthPositions();
                 if ( rmp.first()->negative )
                     count = 5 - rmp.first()->rPos - 1;
                 else
                     count = rmp.first()->rPos - 1;
                 list.append( QString::number( count ) );
            
             }
 
             list.append( "0" );
             break;
         case Recurrence::rMonthlyDay:// 3
             list.append( "3" );
             list.append( QString::number( rec->frequency()) );//12
             list.append( "0" );
             list.append( "0" );
             writeEndDate = true;
             break;
         case Recurrence::rYearlyMonth://4
             list.append( "4" );
             list.append( QString::number( rec->frequency()) );//12
             list.append( "0" );
             list.append( "0" );
             writeEndDate = true;
             break;
        
         default:
             list.append( "255" );
             list.append( QString() );
             list.append( "0" );
             list.append( QString() );
             list.append( "0" );
             list.append( "20991231T000000" );
             break;
         }
     if  ( writeEndDate ) {
         
         if ( rec->endDate().isValid() ) { // 15 + 16
             list.append( "1" );
             list.append( dtToString( rec->endDate()) );
         } else {
             list.append( "0" );
             list.append( "20991231T000000" );
         }
         
     }
     if ( event->doesFloat () ) {
         list.append( dtToString( event->dtStart(), false ).left( 8 ));
         list.append( dtToString( event->dtEnd(), false ).left( 8 )); //6
         
     }
     else {
         list.append( QString() );
         list.append( QString() );
         
     }
     if (event->dtStart().date() == event->dtEnd().date() )
         list.append( "0" );
     else
         list.append( "1" );
 
 
                 for(QStringList::Iterator it=list.begin();
                                 it!=list.end(); ++it){
                         QString& s = (*it);
                         s.replace(QRegExp("\""), "\"\"");
                         if(s.contains(QRegExp("[,\"\r\n]")) || s.stripWhiteSpace() != s){
                                 s.prepend('\"');
                                 s.append('\"');
                         } else if(s.isEmpty() && !s.isNull()){
                                 s = "\"\"";
                         }
                 }
                 return list.join(",");
 
 
 }
 QString SharpFormat::getTodoString( Todo* todo )
 {
     QStringList list;
     list.append(  todo->getID("Sharp_DTM")  );
     list.append( todo->categories().join(",") );
 
     if ( todo->hasStartDate() ) {
         list.append( dtToString( todo->dtStart()) );
     } else
         list.append( QString() );
 
     if ( todo->hasDueDate() ) {
         QTime tim;
         if ( todo->doesFloat()) {
         list.append( dtToString( QDateTime(todo->dtDue().date(),QTime( 0,0,0  )), false)) ;
         } else {
             list.append( dtToString(todo->dtDue() ) );
         }
     } else
         list.append( QString() );
 
     if ( todo->isCompleted() ) {  
         list.append( dtToString( todo->completed()) );
         list.append( "0" ); // yes 0 == completed
     } else {
         list.append( dtToString( todo->completed()) );
         list.append( "1" );
     }
     list.append( QString::number( todo->priority() ));
     if( ! todo->summary().isEmpty() )
         list.append( todo->summary() );
     else
         list.append( "" );
     if (! todo->description().isEmpty()  )
         list.append( todo->description() );
     else
         list.append( "" );
         for(QStringList::Iterator it=list.begin();
         it!=list.end(); ++it){
         QString& s = (*it);
         s.replace(QRegExp("\""), "\"\"");
         if(s.contains(QRegExp("[,\"\r\n]")) || s.stripWhiteSpace() != s){
             s.prepend('\"');
             s.append('\"');
         } else if(s.isEmpty() && !s.isNull()){
             s = "\"\"";
         }
     }
     return list.join(",");
 }
 QString SharpFormat::getPart( const QString & text, bool &ok, int &start )
 {
     //qDebug("start %d ", start);
   
     QString retval ="";
     if ( text.at(start) == '"' ) {
         if ( text.mid( start,2) == "\"\"" && !( text.mid( start+2,1) == "\"")) {
             start = start +2; 
             if ( text.mid( start,1) == "," ) {
                 start += 1;
             }
             retval = "";
             if ( text.mid( start,1) == "\n" ) {
                 start += 1;
                 ok = false; 
             }
             return retval;
         }
         int hk = start+1;
         hk = text.find ('"',hk);
         while ( text.at(hk+1) == '"' )
             hk = text.find ('"',hk+2);
         retval = text.mid( start+1, hk-start-1);
         start = hk+1;
         retval.replace( QRegExp("\"\""), "\""); 
         if ( text.mid( start,1) == "," ) {
             start += 1;
         }
         if ( text.mid( start,1) == "\n" ) {
             start += 1;
             ok = false; 
         }
         //qDebug("retval***%s*** ",retval.latin1() );
         return retval;
 
     } else {
         int nl = text.find ("\n",start);
         int kom = text.find (',',start);
         if ( kom < nl ) {
             // qDebug("kom < nl %d ", kom);
             retval = text.mid(start, kom-start);
             start = kom+1;
             return retval;
         } else {
             if ( nl == kom ) {
                 // qDebug(" nl == kom ");
                 start = 0;
                 ok = false;
                 return "0";
             }
             // qDebug(" nl < kom ", nl);
             retval = text.mid( start, nl-start);
             ok = false;
             start = nl+1;
             return retval;
         }
     }
 }
 bool SharpFormat::fromString( Calendar *calendar, const QString & text)
 {
     return false;
 }
 bool SharpFormat::fromString2Cal( Calendar *calendar,Calendar *existingCalendar, const QString & text, const QString & type)
 {
     // qDebug("test %s ", text.latin1());
     QStringList templist;
     QString tempString;
     int start = 0;
     int len = text.length();
     int end = text.find ("\n",start)+1;
     bool ok = true;
     start = end;
     SharpParser handler( calendar );
     handler.setCategoriesList( mCategories );
     while ( start > 0 ) {
         templist.clear();
         ok = true;
         while ( ok ) {
             tempString = getPart(  text, ok, start );
             if ( start >= len || start == 0 ) {
                 start = 0;
                 ok = false;
             }
             if ( tempString.right(1) =="\n" )
                 tempString = tempString.left( tempString.length()-1);
             //if ( ok ) 
                 templist.append( tempString ); 
                 //qDebug("%d ---%s---", templist.count(),tempString.latin1() );
         }
         handler.startElement( existingCalendar, templist, type );
     }
 
     return false;
 }
 
 QString SharpFormat::toString( Calendar * )
 {
   return QString::null;
 }