File: TemplateNodeIterator.hh

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// Copyright (C) 2000-2004, Luca Padovani <luca.padovani@cs.unibo.it>.
//
// This file is part of GtkMathView, a Gtk widget for MathML.
// 
// GtkMathView 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.
//
// GtkMathView 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 GtkMathView; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// 
// For details, see the GtkMathView World-Wide-Web page,
// http://helm.cs.unibo.it/mml-widget/, or send a mail to
// <lpadovan@cs.unibo.it>

#ifndef __TemplateNodeIterator_hh__
#define __TemplateNodeIterator_hh__

#include "gmv_defines.h"

template <class Model>
class GMV_MathView_EXPORT TemplateNodeIterator
{
public:
  TemplateNodeIterator(const typename Model::Node& root) : currentNode(Model::getFirstChild(root)) { }

  typename Model::Node node(void) const { return currentNode; }
  bool more(void) const { return currentNode; }
  void next(void)
  {
    assert(currentNode);
    currentNode = Model::getNextSibling(currentNode);
  }
  
protected:
  typename Model::Node currentNode;
};

#endif // __TemplateNodeIterator_hh__