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/*
Copyright 2009 Ingo Klöcker <[email protected]>
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 "comparisonvisitor.h"
#include "event.h"
#include "freebusy.h"
#include "journal.h"
#include "todo.h"
using namespace KCal;
class ComparisonVisitor::Private
{
public:
Private() : mReference( 0 ) {}
public:
const IncidenceBase *mReference;
};
ComparisonVisitor::ComparisonVisitor() : d( new Private() )
{
}
ComparisonVisitor::~ComparisonVisitor()
{
delete d;
}
bool ComparisonVisitor::compare( IncidenceBase *incidence, const IncidenceBase *reference )
{
d->mReference = reference;
const bool result = incidence ? incidence->accept( *this ) : reference == 0;
d->mReference = 0;
return result;
}
bool ComparisonVisitor::visit( Event *event )
{
Q_ASSERT( event != 0 );
const Event *refEvent = dynamic_cast<const Event*>( d->mReference );
if ( refEvent ) {
return *event == *refEvent;
} else {
// refEvent is no Event and thus cannot be equal to event
return false;
}
}
bool ComparisonVisitor::visit( Todo *todo )
{
Q_ASSERT( todo != 0 );
const Todo *refTodo = dynamic_cast<const Todo*>( d->mReference );
if ( refTodo ) {
return *todo == *refTodo;
} else {
// refTodo is no Todo and thus cannot be equal to todo
return false;
}
}
bool ComparisonVisitor::visit( Journal *journal )
{
Q_ASSERT( journal != 0 );
const Journal *refJournal = dynamic_cast<const Journal*>( d->mReference );
if ( refJournal ) {
return *journal == *refJournal;
} else {
// refJournal is no Journal and thus cannot be equal to journal
return false;
}
}
bool ComparisonVisitor::visit( FreeBusy *freebusy )
{
Q_ASSERT( freebusy != 0 );
const FreeBusy *refFreeBusy = dynamic_cast<const FreeBusy*>( d->mReference );
if ( refFreeBusy ) {
return *freebusy == *refFreeBusy;
} else {
// refFreeBusy is no FreeBusy and thus cannot be equal to freebusy
return false;
}
}
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