void CompatPre31::fixRecurrence( const Incidence::Ptr &incidence )
{
CompatPre32::fixRecurrence( incidence );
Recurrence *recur = incidence->recurrence();
RecurrenceRule *r = 0;
if ( recur ) {
r = recur->defaultRRule();
}
if ( recur && r ) {
int duration = r->duration();
if ( duration > 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.
r->setDuration( -1 );
QDate end( r->startDt().date() );
bool doNothing = false;
// # of periods:
int tmp = ( duration - 1 ) * r->frequency();
switch ( r->recurrenceType() ) {
case RecurrenceRule::rWeekly:
{
end = end.addDays( tmp * 7 + 7 - end.dayOfWeek() );
break;
}
case RecurrenceRule::rMonthly:
{
int month = end.month() - 1 + tmp;
end.setDate( end.year() + month / 12, month % 12 + 1, 31 );
break;
}
case RecurrenceRule::rYearly:
{
end.setDate( end.year() + tmp, 12, 31 );
break;
}
default:
doNothing = true;
break;
}
if ( !doNothing ) {
duration = r->durationTo(
KDateTime( end, QTime( 0, 0, 0 ), incidence->dtStart().timeSpec() ) );
r->setDuration( duration );
}
}
/* addYearlyNum */
// Dates were stored as day numbers, with a fiddle to take account of
// leap years. Convert the day number to a month.
QList<int> days = r->byYearDays();
if ( !days.isEmpty() ) {
QList<int> months = r->byMonths();
for ( int i = 0; i < months.size(); ++i ) {
int newmonth =
QDate( r->startDt().date().year(), 1, 1 ).addDays( months.at( i ) - 1 ).month();
if ( !months.contains( newmonth ) ) {
months.append( newmonth );
}
}
r->setByMonths( months );
days.clear();
r->setByYearDays( days );
}
}
}
/******************************************************************************
* Must be called after presetting with a KCal::Recurrence, to convert the
* recurrence to KARecurrence types:
* - Convert hourly recurrences to minutely.
* - Remove all but the first day in yearly date recurrences.
* - Check for yearly recurrences falling on February 29th and adjust them as
* necessary. A 29th of the month rule can be combined with either a 60th day
* of the year rule or a last day of February rule.
*/
void KARecurrence::fix()
{
mCachedType = -1;
mFeb29Type = FEB29_FEB29;
int convert = 0;
int days[2] = { 0, 0 };
RecurrenceRule *rrules[2];
RecurrenceRule::List rrulelist = rRules();
RecurrenceRule::List::ConstIterator rr = rrulelist.begin();
for(int i = 0; i < 2 && rr != rrulelist.end(); ++i, ++rr)
{
RecurrenceRule *rrule = *rr;
rrules[i] = rrule;
bool stop = true;
int rtype = recurrenceType(rrule);
switch(rtype)
{
case rHourly:
// Convert an hourly recurrence to a minutely one
rrule->setRecurrenceType(RecurrenceRule::rMinutely);
rrule->setFrequency(rrule->frequency() * 60);
// fall through to rMinutely
case rMinutely:
case rDaily:
case rWeekly:
case rMonthlyDay:
case rMonthlyPos:
case rYearlyPos:
if(!convert)
++rr; // remove all rules except the first
break;
case rOther:
if(dailyType(rrule))
{
// it's a daily rule with BYDAYS
if(!convert)
++rr; // remove all rules except the first
}
break;
case rYearlyDay:
{
// Ensure that the yearly day number is 60 (i.e. Feb 29th/Mar 1st)
if(convert)
{
// This is the second rule.
// Ensure that it can be combined with the first one.
if(days[0] != 29
|| rrule->frequency() != rrules[0]->frequency()
|| rrule->startDt() != rrules[0]->startDt())
break;
}
QValueList<int> ds = rrule->byYearDays();
if(!ds.isEmpty() && ds.first() == 60)
{
++convert; // this rule needs to be converted
days[i] = 60;
stop = false;
break;
}
break; // not day 60, so remove this rule
}
case rYearlyMonth:
{
QValueList<int> ds = rrule->byMonthDays();
if(!ds.isEmpty())
{
int day = ds.first();
if(convert)
{
// This is the second rule.
// Ensure that it can be combined with the first one.
if(day == days[0] || day == -1 && days[0] == 60
|| rrule->frequency() != rrules[0]->frequency()
|| rrule->startDt() != rrules[0]->startDt())
break;
}
if(ds.count() > 1)
{
ds.clear(); // remove all but the first day
ds.append(day);
rrule->setByMonthDays(ds);
}
if(day == -1)
{
// Last day of the month - only combine if it's February
QValueList<int> months = rrule->byMonths();
if(months.count() != 1 || months.first() != 2)
day = 0;
}
if(day == 29 || day == -1)
{
++convert; // this rule may need to be converted
days[i] = day;
stop = false;
break;
}
}
if(!convert)
++rr;
break;
}
default:
break;
}
if(stop)
break;
}
// Remove surplus rules
for(; rr != rrulelist.end(); ++rr)
{
removeRRule(*rr);
delete *rr;
}
QDate end;
int count;
QValueList<int> months;
if(convert == 2)
{
// There are two yearly recurrence rules to combine into a February 29th recurrence.
// Combine the two recurrence rules into a single rYearlyMonth rule falling on Feb 29th.
// Find the duration of the two RRULEs combined, using the shorter of the two if they differ.
if(days[0] != 29)
{
// Swap the two rules so that the 29th rule is the first
RecurrenceRule *rr = rrules[0];
rrules[0] = rrules[1]; // the 29th rule
rrules[1] = rr;
int d = days[0];
days[0] = days[1];
days[1] = d; // the non-29th day
}
// If February is included in the 29th rule, remove it to avoid duplication
months = rrules[0]->byMonths();
if(months.remove(2))
rrules[0]->setByMonths(months);
count = combineDurations(rrules[0], rrules[1], end);
mFeb29Type = (days[1] == 60) ? FEB29_MAR1 : FEB29_FEB28;
}
else if(convert == 1 && days[0] == 60)
{
// There is a single 60th day of the year rule.
// Convert it to a February 29th recurrence.
count = duration();
if(!count)
end = endDate();
mFeb29Type = FEB29_MAR1;
}
else
return;
// Create the new February 29th recurrence
setNewRecurrenceType(RecurrenceRule::rYearly, frequency());
RecurrenceRule *rrule = defaultRRule();
months.append(2);
rrule->setByMonths(months);
QValueList<int> ds;
ds.append(29);
rrule->setByMonthDays(ds);
if(count)
setDuration(count);
else
setEndDate(end);
}
