1 files changed, 184 insertions, 0 deletions

diff --git a/libkcal/freebusy.cpp b/libkcal/freebusy.cpp
new file mode 100644
index 0000000..ba15d6d
--- a/dev/null
+++ b/libkcal/freebusy.cpp
@@ -0,0 +1,184 @@
+/*
+    This file is part of libkcal.
+    Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
+
+    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., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, 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() << "FreeBusy::FreeBusy" << endl;
+  mCalendar = calendar;
+
+  setDtStart(start);
+  setDtEnd(end);
+
+  //Gets all the events in the calendar
+  QPtrList<Event> eventList = mCalendar->events();
+  Event *event;
+
+  int extraDays, i, x, duration;
+  duration = start.daysTo(end);
+  QDate day;
+  QDateTime tmpStart;
+  QDateTime tmpEnd;
+  //Loops through every event in the calendar
+  for( event = eventList.first(); event; event = eventList.next() ) {
+    //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->recurrence())).doesRecur() ) {
+        if ( event->isMultiDay() ) {
+          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-reocurring events
+    addLocalPeriod(event->dtStart(), event->dtEnd());
+  }
+
+  sortList();
+}
+
+FreeBusy::~FreeBusy()
+{
+}
+
+bool FreeBusy::setDtEnd( const QDateTime &end )
+{
+  mDtEnd = end;
+  return true;
+}
+
+QDateTime FreeBusy::dtEnd() const
+{
+  return mDtEnd;
+}
+
+QValueList<Period> 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 (!((((this->dtStart()).secsTo(eventStart)>=0)&&(eventStart.secsTo(this->dtEnd())>=0)) 
+    ||(((this->dtStart()).secsTo(eventEnd) >= 0)&&(eventEnd.secsTo(this->dtEnd()) >= 0))))
+    return false;
+
+  if ( eventStart.secsTo(this->dtStart())>=0) {
+    tmpStart = this->dtStart();
+  } else {
+    tmpStart = eventStart;
+  }
+
+  if ( eventEnd.secsTo(this->dtEnd())<=0 ) {
+    tmpEnd = this->dtEnd();
+  } else {
+    tmpEnd = eventEnd;
+  }  
+
+  Period p(tmpStart, tmpEnd);  
+  mBusyPeriods.append( p );
+
+  return true;
+}
+
+FreeBusy::FreeBusy(QValueList<Period> busyPeriods)
+{
+  mBusyPeriods = busyPeriods;
+}
+
+void FreeBusy::sortList()
+{
+  typedef QValueList<Period> PeriodList;
+
+  PeriodList::Iterator tmpPeriod, earlyPeriod;
+  PeriodList sortedList;
+  QDateTime earlyTime;
+
+  while( mBusyPeriods.count() > 0 ) {
+    earlyTime=(*mBusyPeriods.begin()).start();
+    for (tmpPeriod=mBusyPeriods.begin(); tmpPeriod!=mBusyPeriods.end(); tmpPeriod++) {
+      if (earlyTime.secsTo((*tmpPeriod).start()) <= 0) {
+        earlyTime=(*tmpPeriod).start();
+        earlyPeriod=tmpPeriod;
+      }
+    } 
+    //Move tmpPeriod to sortedList
+    Period tmpPeriod( (*earlyPeriod).start(), (*earlyPeriod).end() );
+    sortedList.append( tmpPeriod );
+    mBusyPeriods.remove( earlyPeriod );
+  }
+  mBusyPeriods=sortedList;
+}
+
+void FreeBusy::addPeriod(const QDateTime &start, const QDateTime &end)
+{
+  Period p(start, end);
+  mBusyPeriods.append( p );
+
+  sortList();
+}