// -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GTKMM_TREEMODELSORT_H
#define _GTKMM_TREEMODELSORT_H


#include <glibmm.h>

/* $Id: treemodelsort.hg,v 1.5 2006/04/12 11:11:25 murrayc Exp $ */

/* Copyright(C) 1998-2002 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or(at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#include <gtkmm/treeiter.h>
#include <gtkmm/treemodel.h>
#include <gtkmm/treesortable.h>
// We couldn't include it in treemodel.h, but doing it here makes it easier for people.
#include <gtkmm/treepath.h>


#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GtkTreeModelSort GtkTreeModelSort;
typedef struct _GtkTreeModelSortClass GtkTreeModelSortClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


namespace Gtk
{ class TreeModelSort_Class; } // namespace Gtk
namespace Gtk
{

/** A wrapper which makes an underlying Gtk::TreeModel sortable.
 *
 * The TreeModelSort is a model which implements the TreeSortable interface. 
 * It does not hold any data itself, but rather is created with
 * a child model and proxies its data.  It has identical column types to
 * this child model, and the changes in the child are propagated.  The
 * primary purpose of this model is to provide a way to sort a different
 * model without modifying it. Note that the sort function used by
 * TreeModelSort is not guaranteed to be stable. 
 *
 * For instance, you might create two TreeView widgets each with a
 * view of the same data.  If the model is wrapped by a
 * TreeModelSort then the two TreeViews can each sort their
 * view of the data without affecting the other.  By contrast, if we
 * simply put the same model in each widget, then sorting the first would
 * sort the second.
 *
 * @ingroup TreeView
 */

class TreeModelSort : public Glib::Object, public TreeModel, public TreeSortable
{
  
#ifndef DOXYGEN_SHOULD_SKIP_THIS

public:
  typedef TreeModelSort CppObjectType;
  typedef TreeModelSort_Class CppClassType;
  typedef GtkTreeModelSort BaseObjectType;
  typedef GtkTreeModelSortClass BaseClassType;

private:  friend class TreeModelSort_Class;
  static CppClassType treemodelsort_class_;

private:
  // noncopyable
  TreeModelSort(const TreeModelSort&);
  TreeModelSort& operator=(const TreeModelSort&);

protected:
  explicit TreeModelSort(const Glib::ConstructParams& construct_params);
  explicit TreeModelSort(GtkTreeModelSort* castitem);

#endif /* DOXYGEN_SHOULD_SKIP_THIS */

public:
  virtual ~TreeModelSort();

#ifndef DOXYGEN_SHOULD_SKIP_THIS
  static GType get_type()      G_GNUC_CONST;


  static GType get_base_type() G_GNUC_CONST;
#endif

  ///Provides access to the underlying C GObject.
  GtkTreeModelSort*       gobj()       { return reinterpret_cast<GtkTreeModelSort*>(gobject_); }

  ///Provides access to the underlying C GObject.
  const GtkTreeModelSort* gobj() const { return reinterpret_cast<GtkTreeModelSort*>(gobject_); }

  ///Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
  GtkTreeModelSort* gobj_copy();

private:

  
protected:
  explicit TreeModelSort(const Glib::RefPtr<TreeModel>& model);

public:
  
  static Glib::RefPtr<TreeModelSort> create(const Glib::RefPtr<TreeModel>& model);


  /** Returns the model the Gtk::TreeModelSort is sorting.
   * @return The "child model" being sorted.
   */
  Glib::RefPtr<TreeModel> get_model();
  
  /** Returns the model the Gtk::TreeModelSort is sorting.
   * @return The "child model" being sorted.
   */
  Glib::RefPtr<const TreeModel> get_model() const;

  
  /** Converts @a child_path to a path relative to @a tree_model_sort.  That is,
   *  @a child_path points to a path in the child model.  The returned path will
   * point to the same row in the sorted model.  If @a child_path isn't a valid 
   * path on the child model, then <tt>0</tt> is returned.
   * @param child_path A Gtk::TreePath to convert.
   * @return A newly allocated Gtk::TreePath, or <tt>0</tt>.
   */
  Path convert_child_path_to_path(const Path& child_path) const;

  /** Gets an iterator that points to the sorted row that corresponds to the child row pointed at by child_iter.
   *
   * @param child_iter A valid iterator pointing to a row on the child model.
   * @result A valid iterator that points to the row in this sorted model.
   */
  iterator convert_child_iter_to_iter(const iterator& child_iter) const;

  
  /** Converts @a sorted_path to a path on the child model of @a tree_model_sort.  
   * That is, @a sorted_path points to a location in @a tree_model_sort.  The 
   * returned path will point to the same location in the model not being 
   * sorted.  If @a sorted_path does not point to a location in the child model, 
   * <tt>0</tt> is returned.
   * @param sorted_path A Gtk::TreePath to convert.
   * @return A newly allocated Gtk::TreePath, or <tt>0</tt>.
   */
  Path convert_path_to_child_path(const Path& sorted_path) const;

  /** Gets an iterator that points to the child row that corresponds to the sorted row pointed at by sorted_iter.
   *
   * @param sorted_iter A valid iterator pointing to a row on the sorted model.
   * @result A valid iterator that points to the row in the child model.
   */
  iterator convert_iter_to_child_iter(const iterator& sorted_iter) const;

  
  /** This resets the default sort function to be in the 'unsorted' state.  That
   * is, it is in the same order as the child model. It will re-sort the model
   * to be in the same order as the child model only if the Gtk::TreeModelSort
   * is in 'unsorted' state.
   */
  void reset_default_sort_func();
  
  /** This function should almost never be called.  It clears the @a tree_model_sort
   * of any cached iterators that haven't been reffed with
   * ref_node().  This might be useful if the child model being
   * sorted is static (and doesn't change often) and there has been a lot of
   * unreffed access to nodes.  As a side effect of this function, all unreffed
   * iters will be invalid.
   */
  void clear_cache();

  
  /** <warning><para>
   * This function is slow. Only use it for debugging and/or testing purposes.
   * </para></warning>
   * 
   * Checks if the given iter is a valid iter for this Gtk::TreeModelSort.
   * 
   * @newin{2,2}
   * @param iter A Gtk::TreeIter.
   * @return <tt>true</tt> if the iter is valid, <tt>false</tt> if the iter is invalid.
   */
  bool iter_is_valid(const iterator& iter) const;

protected:
  virtual void set_value_impl(const iterator& row, int column, const Glib::ValueBase& value);


public:

public:
  //C++ methods used to invoke GTK+ virtual functions:
#ifdef GLIBMM_VFUNCS_ENABLED
#endif //GLIBMM_VFUNCS_ENABLED

protected:
  //GTK+ Virtual Functions (override these to change behaviour):
#ifdef GLIBMM_VFUNCS_ENABLED
#endif //GLIBMM_VFUNCS_ENABLED

  //Default Signal Handlers::
#ifdef GLIBMM_DEFAULT_SIGNAL_HANDLERS_ENABLED
#endif //GLIBMM_DEFAULT_SIGNAL_HANDLERS_ENABLED


};

} // namespace Gtk


namespace Glib
{
  /** A Glib::wrap() method for this object.
   * 
   * @param object The C instance.
   * @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
   * @result A C++ instance that wraps this C instance.
   *
   * @relates Gtk::TreeModelSort
   */
  Glib::RefPtr<Gtk::TreeModelSort> wrap(GtkTreeModelSort* object, bool take_copy = false);
}


#endif /* _GTKMM_TREEMODELSORT_H */

