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tdepim/libkcal/freebusy.cpp

225 lines
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/*
This file is part of libkcal.
Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
Copyright (C) 2004 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.
*/
#include <kdebug.h>
#include "freebusy.h"
using namespace KCal;
FreeBusy::FreeBusy()
{
}
FreeBusy::FreeBusy(const QDateTime &start, const QDateTime &end)
{
setDtStart(start);
setDtEnd(end);
}
FreeBusy::FreeBusy( Calendar *calendar, const QDateTime &start, const QDateTime &end )
{
kdDebug(5800) << "FreeBusy::FreeBusy" << endl;
mCalendar = calendar;
setDtStart(start);
setDtEnd(end);
// Get all the events in the calendar
Event::List eventList = mCalendar->rawEvents( start.date(), end.date() );
int extraDays, i, x, duration;
duration = start.daysTo(end);
QDate day;
QDateTime tmpStart;
QDateTime tmpEnd;
// Loops through every event in the calendar
Event::List::ConstIterator it;
for( it = eventList.begin(); it != eventList.end(); ++it ) {
Event *event = *it;
// The code below can not handle floating events. Fixing this resulted
// in a lot of duplicated code. Instead, make a copy of the event and
// set the period to the full day(s). This trick works for recurring,
// multiday, and single day floating events.
Event *floatingEvent = 0;
if ( event->doesFloat() ) {
// Floating event. Do the hack
kdDebug(5800) << "Floating event\n";
floatingEvent = new Event( *event );
// Set the start and end times to be on midnight
QDateTime start( floatingEvent->dtStart().date(), QTime( 0, 0 ) );
QDateTime end( floatingEvent->dtEnd().date(), QTime( 23, 59, 59, 999 ) );
floatingEvent->setFloats( false );
floatingEvent->setDtStart( start );
floatingEvent->setDtEnd( end );
kdDebug(5800) << "Use: " << start.toString() << " to " << end.toString()
<< endl;
// Finally, use this event for the setting below
event = floatingEvent;
}
// This whole for loop is for recurring events, it loops through
// each of the days of the freebusy request
// First check if this is transparent. If it is, it shouldn't be in the
// freebusy list
if ( event->transparency() == Event::Transparent )
// Transparent
continue;
for( i = 0; i <= duration; ++i ) {
day=(start.addDays(i).date());
tmpStart.setDate(day);
tmpEnd.setDate(day);
if( event->doesRecur() ) {
if ( event->isMultiDay() ) {
// FIXME: This doesn't work for sub-daily recurrences or recurrences with
// a different time than the original event.
extraDays = event->dtStart().date().daysTo(event->dtEnd().date());
for ( x = 0; x <= extraDays; ++x ) {
if ( event->recursOn(day.addDays(-x))) {
tmpStart.setDate(day.addDays(-x));
tmpStart.setTime(event->dtStart().time());
tmpEnd=tmpStart.addSecs( (event->duration()) );
addLocalPeriod( tmpStart, tmpEnd );
break;
}
}
} else {
if (event->recursOn(day)) {
tmpStart.setTime(event->dtStart().time());
tmpEnd.setTime(event->dtEnd().time());
addLocalPeriod (tmpStart, tmpEnd);
}
}
}
}
// Non-recurring events
addLocalPeriod(event->dtStart(), event->dtEnd());
// Clean up
delete floatingEvent;
}
sortList();
}
FreeBusy::~FreeBusy()
{
}
bool FreeBusy::setDtEnd( const QDateTime &end )
{
mDtEnd = end;
return true;
}
QDateTime FreeBusy::dtEnd() const
{
return mDtEnd;
}
PeriodList FreeBusy::busyPeriods() const
{
return mBusyPeriods;
}
bool FreeBusy::addLocalPeriod(const QDateTime &eventStart, const QDateTime &eventEnd ) {
QDateTime tmpStart;
QDateTime tmpEnd;
//Check to see if the start *or* end of the event is
//between the start and end of the freebusy dates.
if ( !( ( ( dtStart().secsTo(eventStart) >= 0 ) &&
( eventStart.secsTo(dtEnd()) >= 0 ) )
|| ( ( dtStart().secsTo(eventEnd) >= 0 ) &&
( eventEnd.secsTo(dtEnd()) >= 0 ) ) ) )
return false;
if ( eventStart.secsTo( dtStart() ) >= 0 ) {
tmpStart = dtStart();
} else {
tmpStart = eventStart;
}
if ( eventEnd.secsTo( dtEnd() ) <= 0 ) {
tmpEnd = dtEnd();
} else {
tmpEnd = eventEnd;
}
Period p(tmpStart, tmpEnd);
mBusyPeriods.append( p );
return true;
}
FreeBusy::FreeBusy( PeriodList busyPeriods)
{
mBusyPeriods = busyPeriods;
}
void FreeBusy::sortList()
{
qHeapSort( mBusyPeriods );
return;
}
void FreeBusy::addPeriods(const PeriodList &list )
{
mBusyPeriods += list;
sortList();
}
void FreeBusy::addPeriod(const QDateTime &start, const QDateTime &end)
{
mBusyPeriods.append( Period(start, end) );
sortList();
}
void FreeBusy::addPeriod( const QDateTime &start, const Duration &dur )
{
mBusyPeriods.append( Period(start, dur) );
sortList();
}
void FreeBusy::merge( FreeBusy *freeBusy )
{
if ( freeBusy->dtStart() < dtStart() )
setDtStart( freeBusy->dtStart() );
if ( freeBusy->dtEnd() > dtEnd() )
setDtEnd( freeBusy->dtEnd() );
QValueList<Period> periods = freeBusy->busyPeriods();
QValueList<Period>::ConstIterator it;
for ( it = periods.begin(); it != periods.end(); ++it )
addPeriod( (*it).start(), (*it).end() );
}