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/*
This file is part of Akregator.
Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
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.
As a special exception, permission is given to link this program
with any edition of Qt, and distribute the resulting executable,
without including the source code for Qt in the source distribution.
*/
#ifndef AKREGATOR_TREENODEVISITOR_H
#define AKREGATOR_TREENODEVISITOR_H
namespace Akregator
{
class TreeNode;
class Folder;
class Feed;
class TagNode;
class TagFolder;
class TreeNodeVisitor
{
public:
virtual bool visit(TreeNode* node);
virtual bool visitTreeNode(TreeNode* /*node*/) { return false; }
virtual bool visitFolder(Folder* /*node*/) { return false; }
virtual bool visitTagFolder(TagFolder* /*node*/) { return false; }
virtual bool visitFeed(Feed* /*node*/) { return false; }
virtual bool visitTagNode(TagNode* /*node*/) { return false; }
};
}
#endif
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