6 files changed, 50 insertions, 27 deletions

diff --git a/libkcal/calendar.cpp b/libkcal/calendar.cpp
index b7990d4..b1806ee 100644
--- a/libkcal/calendar.cpp
+++ b/libkcal/calendar.cpp
@@ -89,51 +89,70 @@ void Calendar::init()
   // if no time zone was in the config file, write what we just discovered.
   if (tmpStr.isEmpty()) {
 //    KOPrefs::instance()->mTimeZone = tzStr;
   } else {
     tzStr = tmpStr;
   }
 
   // if daylight savings has changed since last load time, we need
   // to rewrite these settings to the config file.
   if ((now->tm_isdst && !dstSetting) ||
       (!now->tm_isdst && dstSetting)) {
     KOPrefs::instance()->mTimeZone = tzStr;
     KOPrefs::instance()->mDaylightSavings = now->tm_isdst;
   }
 
   setTimeZone(tzStr);
 #endif
 
 //  KOPrefs::instance()->writeConfig();
 }
 
 Calendar::~Calendar()
 {
   delete mDefaultFilter;
-  if ( mUndoIncidence )
-      delete mUndoIncidence;
-}
+  clearUndo( 0 );
+} 
+void Calendar::clearUndo( Incidence * newUndo )
+{
+    
+    if ( mUndoIncidence ) {
+        if ( mUndoIncidence->typeID() == eventID )
+            delete  ((Event*) mUndoIncidence) ;
+        else if ( mUndoIncidence->typeID() == todoID )
+            delete ( (Todo*) mUndoIncidence );
+        else if ( mUndoIncidence->typeID() == journalID )
+            delete ( (Journal*) mUndoIncidence );
+        else 
+            delete mUndoIncidence;
+    }
+    mUndoIncidence =  newUndo;
+    if ( mUndoIncidence ) {
+        mUndoIncidence->clearRelations();
+    }
+    
+}   
+
 void Calendar::setDontDeleteIncidencesOnClose ()
 {
     mDeleteIncidencesOnClose = false;
 }
 void Calendar::setDefaultCalendar( int d )
 {
     mDefaultCalendar = d;
 }
 int Calendar::defaultCalendar()
 {
     return mDefaultCalendar;
 }
 const QString &Calendar::getOwner() const
 {
   return mOwner;
 }
 
 bool Calendar::undoDeleteIncidence()
 {
     if (!mUndoIncidence)
         return false;
     addIncidence(mUndoIncidence);
     mUndoIncidence = 0;
     return true;
@@ -426,59 +445,74 @@ void Calendar::setupRelations( Incidence *incidence )
     }
   }
 }
 
 // If a task with subtasks is deleted, move it's subtasks to the orphans list
 void Calendar::removeRelations( Incidence *incidence )
 {
     // qDebug("Calendar::removeRelations ");
     QString uid = incidence->uid();
 
     QPtrList<Incidence> relations = incidence->relations();
     for( Incidence* i = relations.first(); i; i = relations.next() )
         if( !mOrphanUids.find( i->uid() ) ) {
             mOrphans.insert( uid, i );
             mOrphanUids.insert( i->uid(), i );
             i->setRelatedTo( 0 );
             i->setRelatedToUid( uid );
         }
 
     // If this incidence is related to something else, tell that about it
     if( incidence->relatedTo() )
         incidence->relatedTo()->removeRelation( incidence );
 
     // Remove this one from the orphans list
-    if( mOrphanUids.remove( uid ) )
+    if( mOrphanUids.remove( uid ) ) {
+        QString r2uid = incidence->relatedToUid();
+        QPtrList<Incidence> tempList;
+        while( Incidence* i = mOrphans[ r2uid ] ) {
+            mOrphans.remove( r2uid );
+            if ( i != incidence ) tempList.append( i );
+        }
+        Incidence* inc = tempList.first();
+        while ( inc ) {
+            mOrphans.insert( r2uid, inc );
+            inc = tempList.next();
+        }
+    }
+    // LR: and another big bad bug found
+#if 0
         // This incidence is located in the orphans list - it should be removed
         if( !( incidence->relatedTo() != 0 && mOrphans.remove( incidence->relatedTo()->uid() ) ) ) {
             // Removing wasn't that easy
             for( QDictIterator<Incidence> it( mOrphans ); it.current(); ++it ) {
                 if( it.current()->uid() == uid ) {
                     mOrphans.remove( it.currentKey() );
                     break;
                 }
             }
         }
+#endif
 }
 
 void Calendar::registerObserver( Observer *observer )
 {
   mObserver = observer;
   mNewObserver = true;
 }
 
 void Calendar::setModified( bool modified )
 {
     if ( mObserver ) mObserver->calendarModified( modified, this );
   if ( modified != mModified || mNewObserver ) {
     mNewObserver = false;
     // if ( mObserver ) mObserver->calendarModified( modified, this );
     mModified = modified;
   }
 }
 
 void Calendar::setLoadedProductId( const QString &id )
 {
   mLoadedProductId = id;
 }
 
 QString Calendar::loadedProductId()
diff --git a/libkcal/calendar.h b/libkcal/calendar.h
index 95477cd..3f6895d 100644
--- a/libkcal/calendar.h
+++ b/libkcal/calendar.h
@@ -59,48 +59,49 @@ namespace KCal {
 */
 class Calendar : public QObject, public CustomProperties,
                  public IncidenceBase::Observer
 {
     Q_OBJECT
 public:
     Calendar();
     Calendar(const QString &timeZoneId);
     virtual ~Calendar();
     Incidence * undoIncidence() { return mUndoIncidence; };
     bool undoDeleteIncidence();
     void deleteIncidence(Incidence *in);
     void resetTempSyncStat();
     void resetPilotStat(int id);
     /**
       Clears out the current calendar, freeing all used memory etc.
     */
     virtual void close() = 0;
     virtual void addCalendar( Calendar*  ) = 0;
     virtual bool addCalendarFile( QString name, int id ) = 0;
     virtual bool mergeCalendarFile( QString name ) = 0;
     virtual Incidence* incidenceForUid( const QString& uid, bool doNotCheckDuplicates  ) = 0;
     virtual void setSyncEventsReadOnly() = 0;
     virtual void stopAllTodos() = 0;
+    virtual void clearUndo( Incidence * newUndo );
   
     /**
       Sync changes in memory to persistant storage.
     */
     virtual void save() = 0;
     virtual QPtrList<Event> getExternLastSyncEvents() = 0;
     virtual void removeSyncInfo( QString syncProfile) = 0; 
     virtual bool isSaving() { return false; }
 
     /**
       Return the owner of the calendar's full name.
     */
     const QString &getOwner() const;
     /**
       Set the owner of the calendar. Should be owner's full name.
     */
     void setOwner( const QString &os );
     /**
       Return the email address of the calendar owner.
     */
     const QString &getEmail();
     /**
       Set the email address of the calendar owner.
     */
diff --git a/libkcal/calendarlocal.cpp b/libkcal/calendarlocal.cpp
index e8c969f..1a1c6be 100644
--- a/libkcal/calendarlocal.cpp
+++ b/libkcal/calendarlocal.cpp
@@ -247,62 +247,49 @@ void CalendarLocal::stopAllTodos()
     for ( Todo *it = mTodoList.first(); it; it = mTodoList.next() )
         it->setRunning( false );
 
 }
 void CalendarLocal::close()
 {
 
   Todo * i;
   for( i = mTodoList.first(); i; i = mTodoList.next() ) i->setRunning(false);
 
   mEventList.setAutoDelete( true );
   mTodoList.setAutoDelete( true );
   mJournalList.setAutoDelete( true );
 
   mEventList.clear();
   mTodoList.clear();
   mJournalList.clear();
 
   mEventList.setAutoDelete( false );
   mTodoList.setAutoDelete( false );
   mJournalList.setAutoDelete( false );
 
   setModified( false );
 }
- void CalendarLocal::clearUndo()
-{
-    if ( mUndoIncidence ) {
-        if ( mUndoIncidence->typeID() == eventID )
-            delete  ((Event*) mUndoIncidence) ;
-        else if ( mUndoIncidence->typeID() == todoID )
-            delete ( (Todo*) mUndoIncidence );
-        else if ( mUndoIncidence->typeID() == journalID )
-            delete ( (Journal*) mUndoIncidence );
-        else 
-            delete mUndoIncidence;
-    }
-    mUndoIncidence = 0;
-}   
+
 bool CalendarLocal::addAnniversaryNoDup( Event *event )
 {
     QString cat;
     bool isBirthday = true;
     if(  event->categoriesStr() == i18n( "Anniversary" ) ) {
         isBirthday = false;
         cat = i18n( "Anniversary" );
     } else if(  event->categoriesStr() == i18n( "Birthday" ) ) {
         isBirthday = true;
         cat = i18n( "Birthday" );
     } else {
         qDebug("addAnniversaryNoDup called without fitting category! ");
         return false;
     }
     Event * eve;
     for ( eve = mEventList.first(); eve ; eve = mEventList.next() ) {
         if ( !(eve->categories().contains( cat ) ))
             continue;
         // now we have an event with fitting category
         if ( eve->dtStart().date() != event->dtStart().date() )
             continue;
         // now we have an event with fitting category+date
         if ( eve->summary() != event->summary() )
             continue;
@@ -319,50 +306,49 @@ bool CalendarLocal::addEventNoDup( Event *event )
         if ( *eve == *event ) {
             //qDebug("CalendarLocal::Duplicate event found! Not inserted! ");
             return false;
         }
     }
     return addEvent( event );
 }
 
 bool CalendarLocal::addEvent( Event *event )
 {
   insertEvent( event );
 
   event->registerObserver( this );
 
   setModified( true );
   if ( event->calID() == 0 )
       event->setCalID( mDefaultCalendar );
   event->setCalEnabled( true );
 
   return true;
 }
 
 void CalendarLocal::deleteEvent( Event *event )
 {
-    clearUndo();
-    mUndoIncidence = event;
+    clearUndo(event);
     if ( mEventList.removeRef( event ) ) {
         setModified( true );
     }
 }
 
 
 Event *CalendarLocal::event( const QString &uid )
 {
     Event *event;
     Event *retVal = 0;
     for ( event = mEventList.first(); event; event = mEventList.next() ) {
         if ( event->calEnabled() && event->uid() == uid ) {
             if ( retVal ) {
                 if ( retVal->calID() > event->calID() ) {
                     retVal = event;
                 }
             } else {
                 retVal = event;
             }
         }
     }
   return retVal;
 }
 bool CalendarLocal::addTodoNoDup( Todo *todo )
@@ -374,51 +360,50 @@ bool CalendarLocal::addTodoNoDup( Todo *todo )
             return false;
         }
     }
     return addTodo( todo );
 }
 bool CalendarLocal::addTodo( Todo *todo )
 {
   mTodoList.append( todo );
 
   todo->registerObserver( this );
 
   // Set up subtask relations
   setupRelations( todo );
 
   setModified( true );
   if ( todo->calID() == 0 )
   todo->setCalID( mDefaultCalendar );
   todo->setCalEnabled( true );
   return true;
 }
 
 void CalendarLocal::deleteTodo( Todo *todo )
 {
   // Handle orphaned children
-    clearUndo();
     removeRelations( todo );
-    mUndoIncidence = todo;
+    clearUndo(todo);
 
   if ( mTodoList.removeRef( todo ) ) {
     setModified( true );
   }
 }
 
 QPtrList<Todo> CalendarLocal::rawTodos()
 {
     QPtrList<Todo> el;
     for ( Todo *it = mTodoList.first(); it; it = mTodoList.next() )
         if ( it->calEnabled() ) el.append( it );
     return el;
 }
 Todo *CalendarLocal::todo( QString syncProf, QString id )
 {
   Todo *todo;
   for ( todo = mTodoList.first(); todo; todo = mTodoList.next() ) {
       if ( todo->calEnabled() && todo->getID( syncProf ) == id ) return todo;
   }
 
   return 0;
 }
 void CalendarLocal::removeSyncInfo( QString syncProfile)
 {
@@ -878,50 +863,49 @@ QPtrList<Event> CalendarLocal::rawEventsForDate( const QDateTime &qdt )
 
 QPtrList<Event> CalendarLocal::rawEvents()
 {
     QPtrList<Event> el;
     for ( Event *it = mEventList.first(); it; it = mEventList.next() )
         if ( it->calEnabled() ) el.append( it );
     return el;
 }
 
 bool CalendarLocal::addJournal(Journal *journal)
 {
     mJournalList.append(journal);
 
   journal->registerObserver( this );
 
   setModified( true );
   if ( journal->calID() == 0 )
       journal->setCalID( mDefaultCalendar );
   journal->setCalEnabled( true );
   return true;
 }
 
 void CalendarLocal::deleteJournal( Journal *journal )
 {
-    clearUndo();
-    mUndoIncidence = journal;
+    clearUndo(journal);
   if ( mJournalList.removeRef(journal) ) {
     setModified( true );
   }
 }
 
 QPtrList<Journal> CalendarLocal::journals4Date( const QDate & date )
 {
     QPtrList<Journal> el;
     for ( Journal *it = mJournalList.first(); it; it = mJournalList.next() )
         if ( it->calEnabled() && it->dtStart().date() == date) el.append( it );
     return el;
 }
 Journal *CalendarLocal::journal( const QDate &date )
 {
 //  kdDebug(5800) << "CalendarLocal::journal() " << date.toString() << endl;
 
   for ( Journal *it = mJournalList.first(); it; it = mJournalList.next() )
       if ( it->calEnabled() && it->dtStart().date() == date )
       return it;
 
   return 0;
 }
 
 Journal *CalendarLocal::journal( const QString &uid )
@@ -958,49 +942,49 @@ void CalendarLocal::setCalendarRemove( int id )
                 deleteEvent( ev );
             ev = EventList.next();
         }
     }
     {
 
         QPtrList<Todo> TodoList = mTodoList;
         Todo * ev = TodoList.first();
         while ( ev ) {
             if ( ev->calID() == id )
                 deleteTodo( ev );
             ev = TodoList.next();
         }
     }
     {
         QPtrList<Journal> JournalList = mJournalList;
         Journal * ev = JournalList.first();
         while ( ev ) {
             if ( ev->calID() == id )
                 deleteJournal( ev );
             ev = JournalList.next();
         }
     }
 
-    clearUndo();
+    clearUndo(0);
 
 }
 
 void CalendarLocal::setCalendarEnabled( int id, bool enable )
 {
     for ( Journal *it = mJournalList.first(); it; it = mJournalList.next() )
         if ( it->calID() == id ) it->setCalEnabled( enable );
 
     for ( Event *it = mEventList.first(); it; it = mEventList.next() )
         if ( it->calID() == id ) it->setCalEnabled( enable );
 
     for ( Todo *it = mTodoList.first(); it; it = mTodoList.next() )
         if ( it->calID() == id ) it->setCalEnabled( enable );
 
 }
 
 void CalendarLocal::setReadOnly( int id, bool enable )
 {
     for ( Journal *it = mJournalList.first(); it; it = mJournalList.next() )
         if ( it->calID() == id ) it->setReadOnly( enable );
 
     for ( Event *it = mEventList.first(); it; it = mEventList.next() )
         if ( it->calID() == id ) it->setReadOnly( enable );
 
diff --git a/libkcal/calendarlocal.h b/libkcal/calendarlocal.h
index ae7e30c..a7a85c8 100644
--- a/libkcal/calendarlocal.h
+++ b/libkcal/calendarlocal.h
@@ -48,49 +48,48 @@ class CalendarLocal : public Calendar
     bool mergeCalendarFile( QString name );
     bool mergeCalendar( Calendar* cal );
     Incidence* incidenceForUid( const QString& uid, bool doNotCheckDuplicates  );
     void setSyncEventsReadOnly();
     void stopAllTodos();
     /**
       Loads a calendar on disk in vCalendar or iCalendar format into the current
       calendar. Any information already present is lost.
       @return true, if successfull, false on error.
       @param fileName the name of the calendar on disk.
     */
     bool load( const QString &fileName );
     /**
       Writes out the calendar to disk in the specified \a format.
       CalendarLocal takes ownership of the CalFormat object.
       @return true, if successfull, false on error.
       @param fileName the name of the file
     */
     bool save( const QString &fileName, CalFormat *format = 0 );
 
     /**
       Clears out the current calendar, freeing all used memory etc. etc.
     */
     void close();
-    void clearUndo();
 
     void save() {}
   
     /**
       Add Event to calendar.
     */
     void removeSyncInfo( QString syncProfile); 
     bool addAnniversaryNoDup( Event *event );
     bool addEventNoDup( Event *event );
     bool addEvent( Event *event );
     /** 
       Deletes an event from this calendar.
     */
     void deleteEvent( Event *event );
 
     /**
       Retrieves an event on the basis of the unique string ID.
     */
     Event *event( const QString &uid );
     /**
       Return unfiltered list of all events in calendar.
     */
     QPtrList<Event> rawEvents();
     QPtrList<Event> getExternLastSyncEvents();
diff --git a/libkcal/incidence.cpp b/libkcal/incidence.cpp
index 52d94fb..549014e 100644
--- a/libkcal/incidence.cpp
+++ b/libkcal/incidence.cpp
@@ -470,49 +470,53 @@ void Incidence::setCategories(const QString &catStr)
 QStringList* Incidence::categoriesP()
 {
   return &mCategories;
 }
 
 QStringList Incidence::categories() const
 {
   return mCategories;
 }
 
 QString Incidence::categoriesStr()
 {
   return mCategories.join(",");
 }
 QString Incidence::categoriesStrWithSpace()
 {
   return mCategories.join(", ");
 }
 
 void Incidence::setRelatedToUid(const QString &relatedToUid)
 {
   if (mReadOnly) return;
   mRelatedToUid = relatedToUid;
 }
-
+void Incidence::clearRelations()
+{
+    mRelatedTo = 0;
+    mRelations.clear();
+}
 QString Incidence::relatedToUid() const
 {
   return mRelatedToUid;
 }
 
 void Incidence::setRelatedTo(Incidence *relatedTo)
 {
     //qDebug("Incidence::setRelatedTo %d ", relatedTo);
     //qDebug("setRelatedTo(Incidence *relatedTo) %s %s", summary().latin1(), relatedTo->summary().latin1() );
   if (mReadOnly || mRelatedTo == relatedTo) return;
   if(mRelatedTo) {
       // updated();
     mRelatedTo->removeRelation(this);
   }
   mRelatedTo = relatedTo;
   if (mRelatedTo)  {
       mRelatedTo->addRelation(this);
       mRelatedToUid = mRelatedTo->uid();
   } else {
       mRelatedToUid = "";
   }
 }
 
 Incidence *Incidence::relatedTo() const
diff --git a/libkcal/incidence.h b/libkcal/incidence.h
index 88df217..eef9e64 100644
--- a/libkcal/incidence.h
+++ b/libkcal/incidence.h
@@ -93,48 +93,49 @@ class Incidence : public IncidenceBase
 
       private:
         T *mResource;
     };
 
     /** enumeration for describing an event's secrecy. */
     enum { SecrecyPublic = 0, SecrecyPrivate = 1, SecrecyConfidential = 2 };
     typedef ListBase<Incidence> List;
     Incidence();
     Incidence(const Incidence &);
     ~Incidence();
 
     /**
       Accept IncidenceVisitor. A class taking part in the visitor mechanism has to
       provide this implementation:
       <pre>
         bool accept(Visitor &v) { return v.visit(this); }
       </pre>
     */
     virtual bool accept(Visitor &) { return false; }
 
     virtual Incidence *clone() = 0;
     virtual void cloneRelations( Incidence * );
     void addRelationsToList(QPtrList<Incidence> *rel);
+    void clearRelations();
     virtual QDateTime getNextAlarmDateTime( bool * ok, int * offset, QDateTime start_dt ) const = 0;
     void setReadOnly( bool );
 
     /**
       Recreate event. The event is made a new unique event, but already stored
       event information is preserved. Sets uniquie id, creation date, last
       modification date and revision number.
     */
     void recreate();
     Incidence*  recreateCloneException(QDate);
 
     /** set creation date */
     void setCreated(QDateTime);
     /** return time and date of creation. */
     QDateTime created() const;
 
     /** set the number of revisions this event has seen */
     void setRevision(int rev);
     /** return the number of revisions this event has seen */
     int revision() const;
 
     /** Set starting date/time. */
     virtual void setDtStart(const QDateTime &dtStart);
     /** Return the incidence's ending date/time as a QDateTime. */