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/*
* karecurrence.h - recurrence with special yearly February 29th handling
* Program: kalarm
* Copyright © 2005,2006 by David Jarvie <software@astrojar.org.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef KARECURRENCE_H
#define KARECURRENCE_H
#include <libkcal/recurrence.h>
class DateTime;
class KARecurrence : public KCal::Recurrence
{
public:
/** The recurrence's period type.
* This is a subset of the possible KCal recurrence types.
*/
enum Type {
NO_RECUR, // does not recur
MINUTELY, // at an hours/minutes interval
DAILY, // daily
WEEKLY, // weekly, on specified weekdays
MONTHLY_POS, // monthly, on specified weekdays in a specified week of the month
MONTHLY_DAY, // monthly, on a specified day of the month
ANNUAL_DATE, // yearly, on a specified date in each of the specified months
ANNUAL_POS // yearly, on specified weekdays in the specified weeks of the specified months
};
/** The date on which a yearly February 29th recurrence falls in non-leap years */
enum Feb29Type {
FEB29_FEB29, // February 29th recurrences are omitted in non-leap years
FEB29_MAR1, // February 29th recurrences are on March 1st in non-leap years
FEB29_FEB28 // February 29th recurrences are on February 28th in non-leap years
};
KARecurrence() : KCal::Recurrence(), mFeb29Type(FEB29_FEB29), mCachedType(-1) { }
KARecurrence(const KCal::Recurrence& r) : KCal::Recurrence(r) { fix(); }
KARecurrence(const KARecurrence& r) : KCal::Recurrence(r), mFeb29Type(r.mFeb29Type), mCachedType(r.mCachedType) { }
bool set(const TQString& icalRRULE);
bool set(Type t, int freq, int count, const DateTime& start, const TQDateTime& end)
{ return set(t, freq, count, -1, start, end); }
bool set(Type t, int freq, int count, const DateTime& start, const TQDateTime& end, Feb29Type f29)
{ return set(t, freq, count, f29, start, end); }
bool init(KCal::RecurrenceRule::PeriodType t, int freq, int count, const DateTime& start, const TQDateTime& end)
{ return init(t, freq, count, -1, start, end); }
bool init(KCal::RecurrenceRule::PeriodType t, int freq, int count, const DateTime& start, const TQDateTime& end, Feb29Type f29)
{ return init(t, freq, count, f29, start, end); }
void fix();
void writeRecurrence(KCal::Recurrence&) const;
TQDateTime endDateTime() const;
TQDate endDate() const;
bool recursOn(const TQDate&) const;
TQDateTime getNextDateTime(const TQDateTime& preDateTime) const;
TQDateTime getPreviousDateTime(const TQDateTime& afterDateTime) const;
int longestInterval() const;
Type type() const;
static Type type(const KCal::RecurrenceRule*);
static bool dailyType(const KCal::RecurrenceRule*);
Feb29Type feb29Type() const { return mFeb29Type; }
static Feb29Type defaultFeb29Type() { return mDefaultFeb29; }
static void setDefaultFeb29Type(Feb29Type t) { mDefaultFeb29 = t; }
private:
bool set(Type, int freq, int count, int feb29Type, const DateTime& start, const TQDateTime& end);
bool init(KCal::RecurrenceRule::PeriodType, int freq, int count, int feb29Type, const DateTime& start, const TQDateTime& end);
int combineDurations(const KCal::RecurrenceRule*, const KCal::RecurrenceRule*, TQDate& end) const;
int longestWeeklyInterval(const TQBitArray& days, int frequency);
static Feb29Type mDefaultFeb29;
Feb29Type mFeb29Type; // yearly recurrence on Feb 29th (leap years) / Mar 1st (non-leap years)
mutable int mCachedType;
};
#endif // KARECURRENCE_H
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