akregator/src

treenodevisitor.h

00001 /*
00002     This file is part of Akregator.
00003 
00004     Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00019 
00020     As a special exception, permission is given to link this program
00021     with any edition of Qt, and distribute the resulting executable,
00022     without including the source code for Qt in the source distribution.
00023 */
00024 #ifndef AKREGATOR_TREENODEVISITOR_H
00025 #define AKREGATOR_TREENODEVISITOR_H
00026 
00027 namespace Akregator 
00028 {
00029 
00030 class TreeNode;
00031 class Folder;
00032 class Feed;
00033 class TagNode;
00034 class TagFolder;
00035 
00036 class TreeNodeVisitor
00037 {
00038     public:
00039         virtual bool visit(TreeNode* node);
00040         virtual bool visitTreeNode(TreeNode* /*node*/) { return false; }
00041         virtual bool visitFolder(Folder* /*node*/) { return false; }
00042         virtual bool visitTagFolder(TagFolder* /*node*/) { return false; }
00043         virtual bool visitFeed(Feed* /*node*/) { return false; }
00044         virtual bool visitTagNode(TagNode* /*node*/) { return false; }
00045 };
00046 
00047 }
00048 
00049 #endif
KDE Home | KDE Accessibility Home | Description of Access Keys