//$Id: exampletreemodel.h,v 1.1 2004/01/16 13:49:39 murrayc Exp $ -*- c++ -*-

/* gtkmm example Copyright (C) 2002 gtkmm development team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef GTKMM_EXAMPLETREEMODEL_H
#define GTKMM_EXAMPLETREEMODEL_H

#include <gtkmm.h>

class ExampleTreeModel
  : public Glib::Object,
    public Gtk::TreeModel
{
public:
  ExampleTreeModel();
  virtual ~ExampleTreeModel();

  static Glib::RefPtr<ExampleTreeModel> create();

  Gtk::TreeModelColumn< Glib::ustring >& get_model_column(int column);

protected:

   // Overrides:
   virtual Gtk::TreeModelFlags get_flags_vfunc();
   virtual int get_n_columns_vfunc();
   virtual GType get_column_type_vfunc(int index);
   virtual void get_value_vfunc(const TreeModel::iterator& iter, int column, GValue* value);
   virtual bool iter_next_vfunc(GtkTreeIter* iter);
   virtual bool iter_children_vfunc(GtkTreeIter* iter, const GtkTreeIter* parent);
   virtual bool iter_has_child_vfunc(const GtkTreeIter* iter);
   virtual int iter_n_children_vfunc(const GtkTreeIter* iter);
   virtual bool iter_nth_child_vfunc(GtkTreeIter* iter, const GtkTreeIter* parent, int n);
   virtual bool iter_parent_vfunc(GtkTreeIter* iter, const GtkTreeIter* child);
   virtual Gtk::TreeModel::Path get_path_vfunc(const Gtk::TreeModel::iterator& iter);
   virtual bool get_iter_vfunc(GtkTreeIter* iter, const Gtk::TreeModel::Path& path);

private:
   typedef std::vector< Glib::ustring> typeRow; //X columns, all of type string.
   typedef std::vector< typeRow > typeListOfRows; //Y rows.
   
   typeListOfRows::iterator get_data_row_iter_from_tree_row_iter(const GtkTreeIter* iter);
   bool check_treeiter_validity(const GtkTreeIter* iter) const;

   //The data:
   typeListOfRows m_rows;

   //Column information:
    Gtk::TreeModel::ColumnRecord m_column_record;
   typedef std::vector< Gtk::TreeModelColumn<Glib::ustring> > typeListOfModelColumns;
   typeListOfModelColumns m_listModelColumns;

   int m_stamp; //When the model's stamp and the TreeIter's stamp are equal, the TreeIter is valid.
};

#endif //GTKMM_EXAMPLETREEMODEL_H