You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
529 lines
23 KiB
529 lines
23 KiB
/*
|
|
This file is part of libkcal.
|
|
|
|
Copyright (c) 1998 Preston Brown <pbrown@kde.org>
|
|
Copyright (c) 2001,2003 Cornelius Schumacher <schumacher@kde.org>
|
|
Copyright (c) 2002 David Jarvie <software@astrojar.org.uk>
|
|
Copyright (C) 2005 Reinhold Kainhofer <reinhold@kainhofer.com>
|
|
|
|
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., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
*/
|
|
#ifndef KCAL_RECURRENCE_H
|
|
#define KCAL_RECURRENCE_H
|
|
|
|
#include <tqstring.h>
|
|
#include <tqbitarray.h>
|
|
#include <tqptrlist.h>
|
|
|
|
#include "libkcal_export.h"
|
|
#include "recurrencerule.h"
|
|
|
|
namespace KCal {
|
|
|
|
class RecurrenceRule;
|
|
|
|
/**
|
|
This class represents a recurrence rule for a calendar incidence.
|
|
|
|
It manages all recurrence rules, recurrence date/times, exception rules
|
|
and exception date times that can appear inside calendar items.
|
|
Each recurrence rule and exception rule is represented as an object
|
|
of type RecurrenceRule.
|
|
|
|
For the simple case where at most one recurrence
|
|
rule is present, this class provides shortcut methods to set the type:
|
|
setMinutely()
|
|
setHourly()
|
|
setDaily()
|
|
setWeekly()
|
|
setMonthly()
|
|
setYearly()
|
|
to set/get general information about the recurrence:
|
|
setEndDate()
|
|
setEndDateTime()
|
|
duration()
|
|
durationTo()
|
|
setDuration()
|
|
frequency()
|
|
setFrequency()
|
|
and to set/get specific information about the recurrence within the interval:
|
|
days()
|
|
monthDays()
|
|
monthPositions()
|
|
yearDays()
|
|
yearDates()
|
|
yearMonths()
|
|
yearPositions()
|
|
addMonthlyPos()
|
|
addMonthlyDate()
|
|
addYearlyDay()
|
|
addYearlyDate()
|
|
addYearlyPos()
|
|
addYearlyMonth()
|
|
These are all available so that you don't have to work on the RecurrenceRule
|
|
objects themselves.
|
|
In other words, in that simple situation the interface stays almost the
|
|
same compared to the old Recurrence class, which allowed only one
|
|
recurrence rule.
|
|
|
|
As soon as your recurrence consists of multiple recurrence rules or exception
|
|
rules, you cannot use the methods mentioned above any more (since each rule
|
|
will have a different type and different settings). If you still call
|
|
any of them, the set*ly methods will remove all rules and add one rule with
|
|
the specified type. The add* and the other set* methods will change only
|
|
the first recurrence rule, but leave the others untouched.
|
|
*/
|
|
class LIBKCAL_EXPORT Recurrence : public RecurrenceRule::Observer
|
|
{
|
|
public:
|
|
class Observer {
|
|
public:
|
|
virtual ~Observer() {}
|
|
/** This method will be called on each change of the recurrence object */
|
|
virtual void recurrenceUpdated( Recurrence * ) = 0;
|
|
};
|
|
|
|
/** enumeration for describing how an event recurs, if at all. */
|
|
enum { rNone = 0, rMinutely = 0x001, rHourly = 0x0002, rDaily = 0x0003,
|
|
rWeekly = 0x0004, rMonthlyPos = 0x0005, rMonthlyDay = 0x0006,
|
|
rYearlyMonth = 0x0007, rYearlyDay = 0x0008, rYearlyPos = 0x0009,
|
|
rOther = 0x000A, rMax=0x00FF };
|
|
|
|
Recurrence();
|
|
Recurrence( const Recurrence& );
|
|
virtual ~Recurrence();
|
|
|
|
bool operator==( const Recurrence& ) const;
|
|
bool operator!=( const Recurrence& r ) const { return !operator==(r); }
|
|
|
|
/** Return the start date/time of the recurrence (Time for floating incidences will be 0:00).
|
|
@return the current start/time of the recurrence. */
|
|
TQDateTime startDateTime() const;
|
|
/** Return the start date/time of the recurrence */
|
|
TQDate startDate() const { return mStartDateTime.date(); }
|
|
/** Set start of recurrence, as a date and time. Also sets the incidence to non-floating.
|
|
@param start the new start date/time of the incidence.
|
|
*/
|
|
void setStartDateTime( const TQDateTime &start );
|
|
/** Set start of recurrence, as a date. Also sets the incidence to floating.
|
|
@param start The new start date of the incidence.
|
|
*/
|
|
void setStartDate( const TQDate &start );
|
|
|
|
/** Set whether the recurrence has no time, just a date.
|
|
* Floating means -- according to rfc2445 -- that the event has no time
|
|
* associated.
|
|
* N.B. This property is derived by default from whether setStartDateTime() or
|
|
* setStartDate() is called.
|
|
* @return whether the recurrence has a time (false) or it is just a date (true). */
|
|
bool doesFloat() const { return mFloating; }
|
|
/** Sets whether the dtstart is a floating time (i.e. has no time attached)
|
|
@param floats If the recurrence is for all-day item (true) or has a time associated (false).
|
|
*/
|
|
void setFloats( bool floats );
|
|
|
|
/** Set if recurrence is read-only or can be changed. */
|
|
void setRecurReadOnly(bool readOnly) { mRecurReadOnly = readOnly; }
|
|
/** Returns true if the recurrence is read-only, or false if it can be changed. */
|
|
bool recurReadOnly() const { return mRecurReadOnly; }
|
|
|
|
/** Returns whether the event recurs at all. */
|
|
bool doesRecur() const;
|
|
/** Returns the event's recurrence status. See the enumeration at the top
|
|
* of this file for possible values. */
|
|
ushort recurrenceType() const;
|
|
/** Returns the recurrence status for a recurrence rule.
|
|
* See the enumeration at the top of this file for possible values. */
|
|
static ushort recurrenceType( const RecurrenceRule *rrule );
|
|
/** Returns true if the date specified is one on which the event will
|
|
* recur. */
|
|
bool recursOn( const TQDate &qd ) const;
|
|
/** Returns true if the date/time specified is one at which the event will
|
|
* recur. Times are rounded down to the nearest minute to determine the result. */
|
|
bool recursAt( const TQDateTime & ) const;
|
|
/** Removes all recurrence rules. Recurrence dates and exceptions are
|
|
not removed. */
|
|
void unsetRecurs();
|
|
/** Removes all recurrence and exception rules and dates. */
|
|
void clear();
|
|
|
|
/** Returns a list of the times on the specified date at which the
|
|
* recurrence will occur.
|
|
* @param date the date for which to find the recurrence times.
|
|
*/
|
|
TQValueList<TQTime> recurTimesOn(const TQDate &date) const;
|
|
|
|
/** Returns a list of all the times at which the recurrence will occur
|
|
* between two specified times.
|
|
*
|
|
* There is a (large) maximum limit to the number of times returned. If due to
|
|
* this limit the list is incomplete, this is indicated by the last entry being
|
|
* set to an invalid TQDateTime value. If you need further values, call the
|
|
* method again with a start time set to just after the last valid time returned.
|
|
*
|
|
* @param start inclusive start of interval
|
|
* @param end inclusive end of interval
|
|
* @return list of date/time values
|
|
*/
|
|
DateTimeList timesInInterval( const TQDateTime &start, const TQDateTime &end ) const;
|
|
|
|
|
|
/** Returns the date and time of the next recurrence, after the specified date/time.
|
|
* If the recurrence has no time, the next date after the specified date is returned.
|
|
* @param preDateTime the date/time after which to find the recurrence.
|
|
* @return date/time of next recurrence (strictly later than the given QDateTiem), or invalid date if none.
|
|
*/
|
|
TQDateTime getNextDateTime( const TQDateTime& preDateTime ) const;
|
|
/** Returns the date and time of the last previous recurrence, before the specified date/time.
|
|
* If a time later than 00:00:00 is specified and the recurrence has no time, 00:00:00 on
|
|
* the specified date is returned if that date recurs.
|
|
* @param afterDateTime the date/time before which to find the recurrence.
|
|
* @return date/time of previous recurrence (strictly earlier than the given TQDateTime), or invalid date if none.
|
|
*/
|
|
TQDateTime getPreviousDateTime( const TQDateTime& afterDateTime ) const;
|
|
|
|
/** Returns frequency of recurrence, in terms of the recurrence time period type. */
|
|
int frequency() const;
|
|
/** Sets the frequency of recurrence, in terms of the recurrence time period type. */
|
|
void setFrequency(int freq);
|
|
|
|
/**
|
|
* Returns -1 if the event recurs infinitely, 0 if the end date is set,
|
|
* otherwise the total number of recurrences, including the initial occurrence.
|
|
*/
|
|
int duration() const;
|
|
/** Sets the total number of times the event is to occur, including both the
|
|
* first and last. */
|
|
void setDuration(int duration);
|
|
/** Returns the number of recurrences up to and including the date/time specified. */
|
|
int durationTo(const TQDateTime &) const;
|
|
/** Returns the number of recurrences up to and including the date specified. */
|
|
int durationTo( const TQDate &date ) const { return durationTo( TQDateTime( date, TQTime( 23, 59, 59 ) ) ); }
|
|
|
|
/** Returns the date/time of the last recurrence.
|
|
* An invalid date is returned if the recurrence has no end.
|
|
*/
|
|
TQDateTime endDateTime() const;
|
|
/** Returns the date of the last recurrence.
|
|
* An invalid date is returned if the recurrence has no end.
|
|
*/
|
|
TQDate endDate() const;
|
|
/** Sets the date of the last recurrence. The end time is set to the recurrence start time.
|
|
* @param endDate the ending date after which to stop recurring. If the
|
|
* incidence is not floating, the end time will be 23:59.*/
|
|
void setEndDate( const TQDate &endDate );
|
|
/** Sets the date and time of the last recurrence.
|
|
* @param endDateTime the ending date/time after which to stop recurring. */
|
|
void setEndDateTime( const TQDateTime &endDateTime );
|
|
|
|
|
|
|
|
/** Sets an event to recur minutely. By default infinite recurrence is used.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
minutely recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. 2 is every other minute
|
|
*/
|
|
void setMinutely( int freq );
|
|
|
|
/** Sets an event to recur hourly. By default infinite recurrence is used.
|
|
The minute of the recurrence is taken from the start date (if you
|
|
need to change it, you will have to modify the defaultRRule's
|
|
byMinute list manually.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
hourly recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. 2 is every other hour
|
|
*/
|
|
void setHourly( int freq );
|
|
|
|
/** Sets an event to recur daily. By default infinite recurrence is used.
|
|
The minute and second of the recurrence is taken from the start date
|
|
(if you need to change them, you will have to modify the defaultRRule's
|
|
byMinute list manually.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
daily recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. 2 is every other day
|
|
*/
|
|
void setDaily( int freq );
|
|
|
|
/** Sets an event to recur weekly. By default infinite recurrence is used.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
weekly recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. every other week etc.
|
|
* @param weekStart the first day of the week (Monday=1 .. Sunday=7, default is Monday).
|
|
*/
|
|
void setWeekly( int freq, int weekStart = 1 );
|
|
/** Sets an event to recur weekly. By default infinite recurrence is used.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
weekly recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. every other week etc.
|
|
* @param days a 7 bit array indicating which days on which to recur (bit 0 = Monday).
|
|
* @param weekStart the first day of the week (Monday=1 .. Sunday=7, default is Monday).
|
|
*/
|
|
void setWeekly( int freq, const TQBitArray &days, int weekStart = 1 );
|
|
/** Adds days to the weekly day recurrence list.
|
|
* @param days a 7 bit array indicating which days on which to recur (bit 0 = Monday).
|
|
*/
|
|
void addWeeklyDays( const TQBitArray &days );
|
|
/** Returns the first day of the week. Uses only the
|
|
* first RRULE if present (i.e. a second RRULE as well as all EXRULES are
|
|
* ignored!
|
|
* @return Weekday of the first day of the week (Monday=1 .. Sunday=7)
|
|
*/
|
|
int weekStart() const;
|
|
/** Returns week day mask (bit 0 = Monday). */
|
|
TQBitArray days() const; // Emulate the old behavior
|
|
|
|
/** Sets an event to recur monthly. By default infinite recurrence is used.
|
|
The date of the monthly recurrence will be taken from the start date
|
|
unless you explicitly add one or more recurrence dates with
|
|
addMonthlyDate or a recurrence position in the month (e.g. first
|
|
monday) using addMonthlyPos.
|
|
To set an end date use the method setEndDate and to set the number
|
|
of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
monthly recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. 3 for every third month.
|
|
*/
|
|
void setMonthly( int freq );
|
|
/** Adds a position (e.g. first monday) to the monthly recurrence rule.
|
|
* @param pos the position in the month for the recurrence, with valid
|
|
* values being 1-5 (5 weeks max in a month).
|
|
* @param days the days for the position to recur on (bit 0 = Monday).
|
|
* Example: pos = 2, and bits 0 and 2 are set in days:
|
|
* the rule is to repeat every 2nd Monday and Wednesday in the month.
|
|
*/
|
|
void addMonthlyPos( short pos, const TQBitArray &days );
|
|
void addMonthlyPos( short pos, ushort day );
|
|
/** Adds a date (e.g. the 15th of each month) to the monthly day
|
|
* recurrence list.
|
|
* @param day the date in the month to recur.
|
|
*/
|
|
void addMonthlyDate( short day );
|
|
/** Returns list of day positions in months. */
|
|
TQValueList<RecurrenceRule::WDayPos> monthPositions() const;
|
|
/** Returns list of day numbers of a month. */
|
|
// Emulate old behavior
|
|
TQValueList<int> monthDays() const;
|
|
|
|
/** Sets an event to recur yearly. By default, this will recur every year
|
|
* on the same date (e.g. every year on April 15 if the start date was
|
|
* April 15).
|
|
* The day of the year can be specified with addYearlyDay().
|
|
* The day of the month can be specified with addYearlyByDate
|
|
* If both a month and a day ar specified with addYearlyMonth and
|
|
* addYearlyDay, the day is understood as day number within the month.
|
|
*
|
|
* A position (e.g. 3rd Sunday of year/month, or last Friday of year/month)
|
|
* can be specified with addYearlyPos. Again, if a month is specified,
|
|
* this position is understood as within that month, otherwise within
|
|
* the year.
|
|
*
|
|
* By default infinite recurrence is used. To set an end date use the
|
|
* method setEndDate and to set the number of occurrences use setDuration.
|
|
|
|
This method clears all recurrence rules and adds one rule with a
|
|
yearly recurrence. All other recurrence components (recurrence
|
|
date/times, exception date/times and exception rules) are not
|
|
modified.
|
|
* @param freq the frequency to recur, e.g. 3 for every third year.
|
|
*/
|
|
void setYearly( int freq );
|
|
/** Adds day number of year within a yearly recurrence.
|
|
* By default infinite recurrence is used. To set an end date use the
|
|
* method setEndDate and to set the number of occurrences use setDuration.
|
|
* @param day the day of the year for the event. E.g. if day is 60, this
|
|
* means Feb 29 in leap years and March 1 in non-leap years.
|
|
*/
|
|
void addYearlyDay( int day );
|
|
/** Adds date within a yearly recurrence. The month(s) for the recurrence
|
|
* can be specified with addYearlyMonth(), otherwise the month of the
|
|
* start date is used.
|
|
*
|
|
* By default infinite recurrence is used. To set an end date use the
|
|
* method setEndDate and to set the number of occurrences use setDuration.
|
|
* @param date the day of the month for the event
|
|
*/
|
|
void addYearlyDate( int date );
|
|
/** Adds month in yearly recurrence. You can specify specific day numbers
|
|
* within the months (by calling addYearlyDate()) or specific day positions
|
|
* within the month (by calling addYearlyPos).
|
|
* @param _rNum the month in which the event shall recur.
|
|
*/
|
|
void addYearlyMonth( short _rNum );
|
|
/** Adds position within month/year within a yearly recurrence. If months
|
|
* are specified (via addYearlyMonth()), the parameters are understood as
|
|
* position within these months, otherwise within the year.
|
|
*
|
|
* By default infinite recurrence is used.
|
|
* To set an end date use the method setEndDate and to set the number
|
|
* of occurrences use setDuration.
|
|
* @param pos the position in the month/year for the recurrence, with valid
|
|
* values being 1 to 53 and -1 to -53 (53 weeks max in a year).
|
|
* @param days the days for the position to recur on (bit 0 = Monday).
|
|
* Example: pos = 2, and bits 0 and 2 are set in days
|
|
* If months are specified (via addYearlyMonth), e.g. March, the rule is
|
|
* to repeat every year on the 2nd Monday and Wednesday of March.
|
|
* If no months are specified, the fule is to repeat every year on the
|
|
* 2nd Monday and Wednesday of the year.
|
|
*/
|
|
void addYearlyPos( short pos, const TQBitArray &days );
|
|
|
|
/** Returns the day numbers within a yearly recurrence.
|
|
* @return the days of the year for the event. E.g. if the list contains
|
|
* 60, this means the recurrence happens on day 60 of the year, i.e.
|
|
* on Feb 29 in leap years and March 1 in non-leap years.
|
|
*/
|
|
TQValueList<int> yearDays() const;
|
|
/** Returns the dates within a yearly recurrence.
|
|
* @return the days of the month for the event. E.g. if the list contains
|
|
* 13, this means the recurrence happens on the 13th of the month.
|
|
* The months for the recurrence can be obtained through
|
|
* yearlyMonths(). If this list is empty, the month of the start
|
|
* date is used.
|
|
*/
|
|
TQValueList<int> yearDates() const;
|
|
/** Returns the months within a yearly recurrence.
|
|
* @return the months for the event. E.g. if the list contains
|
|
* 11, this means the recurrence happens in November.
|
|
* The days for the recurrence can be obtained either through
|
|
* yearDates() if they are given as dates within the month or
|
|
* through yearlyPositions() if they are given as positions within the
|
|
* month. If none is specified, the date of the start date is used.
|
|
*/
|
|
TQValueList<int> yearMonths() const;
|
|
/** Returns the positions within a yearly recurrence.
|
|
* @return the positions for the event, either within a month (if months
|
|
* are set through addYearlyMonth()) or within the year.
|
|
* E.g. if the list contains {Pos=3, Day=5}, this means the third
|
|
* friday. If a month is set this position is understoodas third
|
|
* Friday in the given months, otherwise as third Friday of the
|
|
* year.
|
|
*/
|
|
/** Returns list of day positions in months, for a recursYearlyPos recurrence rule. */
|
|
TQValueList<RecurrenceRule::WDayPos> yearPositions() const;
|
|
|
|
/** Upper date limit for recurrences */
|
|
static const TQDate MAX_DATE;
|
|
|
|
/**
|
|
Debug output.
|
|
*/
|
|
void dump() const;
|
|
|
|
|
|
// RRULE
|
|
RecurrenceRule::List rRules() const;
|
|
void addRRule( RecurrenceRule *rrule );
|
|
void removeRRule( RecurrenceRule *rrule );
|
|
// EXRULE
|
|
RecurrenceRule::List exRules() const;
|
|
void addExRule( RecurrenceRule *exrule );
|
|
void removeExRule( RecurrenceRule *exrule );
|
|
|
|
// RDATE
|
|
DateTimeList rDateTimes() const;
|
|
DateList rDates() const;
|
|
void setRDateTimes( const DateTimeList &rdates);
|
|
void setRDates( const DateList &rdates);
|
|
void addRDateTime( const TQDateTime &rdate );
|
|
void addRDate( const TQDate &rdate );
|
|
|
|
// ExDATE
|
|
DateTimeList exDateTimes() const;
|
|
DateList exDates() const;
|
|
void setExDateTimes( const DateTimeList &exdates);
|
|
void setExDates( const DateList &exdates);
|
|
void addExDateTime( const TQDateTime &exdate );
|
|
void addExDate( const TQDate &exdate );
|
|
|
|
RecurrenceRule *defaultRRule( bool create = false ) const;
|
|
RecurrenceRule *defaultRRuleConst() const;
|
|
void updated();
|
|
|
|
/**
|
|
Installs an observer. Whenever some setting of this recurrence
|
|
object is changed, the recurrenceUpdated( Recurrence* ) method
|
|
of each observer will be called to inform it of changes.
|
|
@param observer the Recurrence::Observer-derived object, which
|
|
will be installed as an observer of this object.
|
|
*/
|
|
void addObserver( Observer *observer );
|
|
/**
|
|
Removes an observer that was added with addObserver. If the
|
|
given object was not an observer, it does nothing.
|
|
@param observer the Recurrence::Observer-derived object to
|
|
be removed from the list of observers of this object.
|
|
*/
|
|
void removeObserver( Observer *observer );
|
|
|
|
void recurrenceChanged( RecurrenceRule * );
|
|
|
|
protected:
|
|
RecurrenceRule *setNewRecurrenceType( RecurrenceRule::PeriodType type, int freq );
|
|
|
|
private:
|
|
RecurrenceRule::List mExRules;
|
|
RecurrenceRule::List mRRules;
|
|
TQValueList<TQDateTime>mRDateTimes;
|
|
TQValueList<TQDate> mRDates;
|
|
TQValueList<TQDateTime> mExDateTimes;
|
|
TQValueList<TQDate> mExDates;
|
|
|
|
TQDateTime mStartDateTime; // date/time of first recurrence
|
|
bool mFloating; // the recurrence has no time, just a date
|
|
bool mRecurReadOnly;
|
|
|
|
// Cache the type of the recurrence with the old system (e.g. MonthlyPos)
|
|
mutable ushort mCachedType;
|
|
|
|
TQValueList<Observer*> mObservers;
|
|
|
|
class Private;
|
|
Private *d;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|