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path: root/libkcal/recurrence.cpp
authorzautrix <zautrix>2005-02-07 21:06:04 (UTC)
committer zautrix <zautrix>2005-02-07 21:06:04 (UTC)
commitedaad9a9d7ede1b4bc50b9e758eaf32a5fbb547e (patch) (side-by-side diff)
tree7653e521f003a0c4e316530d38c09f3190c4edaf /libkcal/recurrence.cpp
parentda5e47069d88fa9aa656423ce4c60bf505728e1c (diff)
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recurrence fixes
Diffstat (limited to 'libkcal/recurrence.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libkcal/recurrence.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/libkcal/recurrence.cpp b/libkcal/recurrence.cpp
index e84f672..5181eaf 100644
--- a/libkcal/recurrence.cpp
+++ b/libkcal/recurrence.cpp
@@ -834,96 +834,97 @@ QDateTime Recurrence::getNextDateTime(const QDateTime &preDateTime, bool *last)
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:
+ qDebug("Recurrence::getNextDate: MAY BE BROKEN ");
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) {
@@ -1121,96 +1122,97 @@ bool Recurrence::recursYearlyByPos(const QDate &qd) const
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;
}