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50 lines
1.6 KiB
50 lines
1.6 KiB
/*
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This file is part of Akregator.
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Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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As a special exception, permission is given to link this program
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with any edition of TQt, and distribute the resulting executable,
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without including the source code for TQt in the source distribution.
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*/
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#ifndef AKREGATOR_TREENODEVISITOR_H
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#define AKREGATOR_TREENODEVISITOR_H
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namespace Akregator
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{
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class TreeNode;
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class Folder;
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class Feed;
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class TagNode;
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class TagFolder;
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class TreeNodeVisitor
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{
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public:
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virtual bool visit(TreeNode* node);
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virtual bool visitTreeNode(TreeNode* /*node*/) { return false; }
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virtual bool visitFolder(Folder* /*node*/) { return false; }
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virtual bool visitTagFolder(TagFolder* /*node*/) { return false; }
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virtual bool visitFeed(Feed* /*node*/) { return false; }
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virtual bool visitTagNode(TagNode* /*node*/) { return false; }
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};
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}
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#endif
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