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 /*
  * Copyright (c) 2003-2008 André Wöbbeking <Woebbeking@kde.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program 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 General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
 #ifndef UPDATEVIEW_VISITORS_H
 #define UPDATEVIEW_VISITORS_H
 
 #include "updateview.h"
 
 #include <set>
 
 class UpdateItem;
 class UpdateDirItem;
 class UpdateFileItem;
 
 class Visitor
 {
 public:
     virtual ~Visitor() = default;
 
     virtual void preVisit(UpdateDirItem *) = 0;
     virtual void postVisit(UpdateDirItem *) = 0;
 
     virtual void visit(UpdateFileItem *) = 0;
 };
 
 class ApplyFilterVisitor : public Visitor
 {
 public:
     explicit ApplyFilterVisitor(UpdateView::Filter filter);
 
     void preVisit(UpdateDirItem *) override;
     void postVisit(UpdateDirItem *) override;
 
     void visit(UpdateFileItem *) override;
 
 private:
     void markAllParentsAsVisible(UpdateItem *);
 
     UpdateView::Filter m_filter;
 
     using TItemSet = std::set<UpdateItem *>;
     TItemSet m_invisibleDirItems;
 };
 
 #endif // UPDATEVIEW_VISITORS_H