Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 250 insertions, 0 deletions

diff --git a/libkcal/compat.cpp b/libkcal/compat.cpp
new file mode 100644
index 000000000..a0de0d35a
--- /dev/null
+++ b/libkcal/compat.cpp
@@ -0,0 +1,250 @@
+/*
+    This file is part of libkcal.
+
+    Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (C) 2003-2004 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 "compat.h"
+
+#include <kdebug.h>
+
+#include <qregexp.h>
+
+#include "incidence.h"
+
+using namespace KCal;
+
+Compat *CompatFactory::createCompat( const QString &productId )
+{
+//  kdDebug(5800) << "CompatFactory::createCompat(): '" << productId << "'"
+//                << endl;
+
+  Compat *compat = 0;
+
+  int korg = productId.find( "KOrganizer" );
+  int outl9 = productId.find( "Outlook 9.0" );
+//   int kcal = productId.find( "LibKCal" );
+
+  // TODO: Use the version of LibKCal to determine the compat class...
+  if ( korg >= 0 ) {
+    int versionStart = productId.find( " ", korg );
+    if ( versionStart >= 0 ) {
+      int versionStop = productId.find( QRegExp( "[ /]" ), versionStart + 1 );
+      if ( versionStop >= 0 ) {
+        QString version = productId.mid( versionStart + 1,
+                                         versionStop - versionStart - 1 );
+//        kdDebug(5800) << "Found KOrganizer version: " << version << endl;
+
+        int versionNum = version.section( ".", 0, 0 ).toInt() * 10000 +
+                         version.section( ".", 1, 1 ).toInt() * 100 +
+                         version.section( ".", 2, 2 ).toInt();
+        int releaseStop = productId.find( "/", versionStop );
+        QString release;
+        if ( releaseStop > versionStop ) {
+          release = productId.mid( versionStop+1, releaseStop-versionStop-1 );
+        }
+//        kdDebug(5800) << "KOrganizer release: \"" << release << "\"" << endl;
+
+//        kdDebug(5800) << "Numerical version: " << versionNum << endl;
+
+        if ( versionNum < 30100 ) {
+          compat = new CompatPre31;
+        } else if ( versionNum < 30200 ) {
+          compat = new CompatPre32;
+        } else if ( versionNum == 30200 && release == "pre" ) {
+          kdDebug(5800) << "Generating compat for KOrganizer 3.2 pre " << endl;
+          compat = new Compat32PrereleaseVersions;
+        } else if ( versionNum < 30400 ) {
+          compat = new CompatPre34;
+        } else if ( versionNum < 30500 ) {
+          compat = new CompatPre35;
+        }
+      }
+    }
+  } else if ( outl9 >= 0 ) {
+    kdDebug(5800) << "Generating compat for Outlook < 2000 (Outlook 9.0)" << endl;
+    compat = new CompatOutlook9;
+  }
+
+  if ( !compat ) compat = new Compat;
+
+  return compat;
+}
+
+void Compat::fixEmptySummary( Incidence *incidence )
+{
+  // some stupid vCal exporters ignore the standard and use Description
+  // instead of Summary for the default field. Correct for this: Copy the
+  // first line of the description to the summary (if summary is just one
+  // line, move it)
+  if (incidence->summary().isEmpty() &&
+      !(incidence->description().isEmpty())) {
+    QString oldDescription = incidence->description().stripWhiteSpace();
+    QString newSummary( oldDescription );
+    newSummary.remove( QRegExp("\n.*") );
+    incidence->setSummary( newSummary );
+    if ( oldDescription == newSummary )
+      incidence->setDescription("");
+  }
+}
+
+void Compat::fixRecurrence( Incidence */*incidence*/ )
+{
+  // Prevent use of compatibility mode during subsequent changes by the application
+//  incidence->recurrence()->setCompatVersion();
+}
+
+/** Before kde 3.5, the start date was not automatically a recurring date. So
+    if the start date doesn't match the recurrence rule, we need to add an ex
+    date for the date start. If a duration was given, the DTSTART was only counted
+    if it matched, so by accident this was already the correct behavior, so
+    we don't need to adjust the duration... */
+void CompatPre35::fixRecurrence( Incidence *incidence )
+{
+  Recurrence* recurrence = incidence->recurrence();
+  if (recurrence ) {
+    QDateTime start( incidence->dtStart() );
+    // kde < 3.5 only had one rrule, so no need to loop over all RRULEs.
+    RecurrenceRule *r = recurrence->defaultRRule();
+    if ( r && !r->dateMatchesRules( start )  ) {
+      recurrence->addExDateTime( start );
+    }
+  }
+
+  // Call base class method now that everything else is done
+  Compat::fixRecurrence( incidence );
+}
+
+int CompatPre34::fixPriority( int prio )
+{
+  if ( 0<prio && prio<6 ) {
+    // adjust 1->1, 2->3, 3->5, 4->7, 5->9
+    return 2*prio - 1;
+  } else return prio;
+}
+
+/** The recurrence has a specified number of repetitions.
+    Pre-3.2, this was extended by the number of exception dates.
+    This is also rfc 2445-compliant. The duration of an RRULE also counts
+    events that are later excluded via EXDATE or EXRULE. */
+void CompatPre32::fixRecurrence( Incidence *incidence )
+{
+  Recurrence* recurrence = incidence->recurrence();
+  if ( recurrence->doesRecur() &&  recurrence->duration() > 0 ) {
+    recurrence->setDuration( recurrence->duration() + incidence->recurrence()->exDates().count() );
+  }
+  // Call base class method now that everything else is done
+  CompatPre35::fixRecurrence( incidence );
+}
+
+/** Before kde 3.1, floating events (events without a date) had 0:00 of their
+    last day as the end date. E.g. 28.5.2005  0:00 until 28.5.2005 0:00 for an
+    event that lasted the whole day on May 28, 2005. According to RFC 2445, the
+    end date for such an event needs to be 29.5.2005 0:00.
+
+    Update: We misunderstood rfc 2445 in this regard. For all-day events, the
+    DTEND is the last day of the event. See a mail from the Author or rfc 2445:
+         http://www.imc.org/ietf-calendar/archive1/msg03648.html
+    However, as all other applications also got this wrong, we'll just leave it 
+    as it is and use the wrong interpretation (was also discussed on 
+    ietf-calsify)*/
+void CompatPre31::fixFloatingEnd( QDate &endDate )
+{
+  endDate = endDate.addDays( 1 );
+}
+
+void CompatPre31::fixRecurrence( Incidence *incidence )
+{
+  CompatPre32::fixRecurrence( incidence );
+
+  Recurrence *recur = incidence->recurrence();
+  RecurrenceRule *r = 0;
+  if ( recur ) r = recur->defaultRRule();
+  if ( recur && r ) {
+    int duration = r->duration();
+    if ( duration > 0 ) {
+      // Backwards compatibility for KDE < 3.1.
+      // rDuration was set to the number of time periods to recur,
+      // with week start always on a Monday.
+      // Convert this to the number of occurrences.
+      r->setDuration( -1 );
+      QDate end( r->startDt().date() );
+      bool doNothing = false;
+      // # of periods:
+      int tmp = ( duration - 1 ) * r->frequency();
+      switch ( r->recurrenceType() ) {
+        case RecurrenceRule::rWeekly: {
+          end = end.addDays( tmp * 7 + 7 - end.dayOfWeek() );
+          break; }
+        case RecurrenceRule::rMonthly: {
+          int month = end.month() - 1 + tmp;
+          end.setYMD( end.year() + month / 12, month % 12 + 1, 31 );
+          break; }
+        case RecurrenceRule::rYearly: {
+          end.setYMD( end.year() + tmp, 12, 31);
+          break; }
+        default:
+          doNothing = true;
+          break;
+      }
+      if ( !doNothing ) {
+        duration = r->durationTo( QDateTime( end, QTime( 0, 0, 0 ) ) );
+        r->setDuration( duration );
+      }
+    }
+
+    /* addYearlyNum */
+    // Dates were stored as day numbers, with a fiddle to take account of leap years.
+    // Convert the day number to a month.
+    QValueList<int> days = r->byYearDays();
+    if ( !days.isEmpty() ) {
+      QValueList<int> months = r->byMonths();
+      for ( QValueListConstIterator<int> it = days.begin(); it != days.end(); ++it ) {
+        int newmonth = QDate( r->startDt().date().year(), 1, 1).addDays( (*it) - 1 ).month();
+        if ( !months.contains( newmonth ) )
+          months.append( newmonth );
+      }
+      r->setByMonths( months );
+      days.clear();
+      r->setByYearDays( days );
+    }
+  }
+
+
+}
+
+/** In Outlook 9, alarms have the wrong sign. I.e. RFC 2445 says that negative
+    values for the trigger are before the event's start. Outlook/exchange,
+    however used positive values. */
+void CompatOutlook9::fixAlarms( Incidence *incidence )
+{
+  if ( !incidence ) return;
+  Alarm::List alarms = incidence->alarms();
+  Alarm::List::Iterator it;
+  for ( it = alarms.begin(); it != alarms.end(); ++it ) {
+    Alarm *al = *it;
+    if ( al && al->hasStartOffset() ) {
+      Duration offsetDuration = al->startOffset();
+      int offs = offsetDuration.asSeconds();
+      if ( offs>0 )
+        offsetDuration = Duration( -offs );
+      al->setStartOffset( offsetDuration );
+    }
+  }
+}