/* $Id: treestore.hg,v 1.5 2004/04/03 12:53:49 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 Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library 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>
#include <gtkmm/treedragdest.h>
#include <gtkmm/treedragsource.h>
// We couldn't include it in treemodel.h, but doing it here makes it easier for people.
#include <gtkmm/treepath.h>

_DEFS(gtkmm,gtk)
_PINCLUDE(glibmm/private/object_p.h)

namespace Gtk
{

/**
 * @ingroup TreeView
 */
class TreeStore :
  public Glib::Object,
  public Gtk::TreeModel,
  public TreeSortable,
  public TreeDragSource,
  public TreeDragDest
{
  _CLASS_GOBJECT(TreeStore, GtkTreeStore, GTK_TREE_STORE, Glib::Object, GObject)
  _IMPLEMENTS_INTERFACE(TreeModel)
  _IMPLEMENTS_INTERFACE(TreeSortable)
  _IMPLEMENTS_INTERFACE(TreeDragSource)
  _IMPLEMENTS_INTERFACE(TreeDragDest)
  _IGNORE(gtk_tree_store_set, gtk_tree_store_set_valist,
          gtk_tree_store_insert, gtk_tree_store_append, gtk_tree_store_prepend,
          gtk_tree_store_reorder, gtk_tree_store_move_after, gtk_tree_store_move_before)

protected:
  /** When using this constructor, you must use set_column_types() immediately afterwards.
   * This can be useful when deriving from this class, with a fixed TreeModelColumnRecord
   * that is a member of the class.
   * There is no create() method that corresponds to this constructor, because this
   * constructor should only be used by derived classes.
   */
  _CTOR_DEFAULT
  
  explicit TreeStore(const TreeModelColumnRecord& columns);

public:
  /** Instantiate a new TreeStore.
   * @param columns The column types for this tree model.
   * @result The new TreeStore.
   */
  _WRAP_CREATE(const TreeModelColumnRecord& columns)

  void set_column_types(const TreeModelColumnRecord& columns);
  _IGNORE(gtk_tree_store_set_column_types)

  /** Removes the given row from the list store.
   * @param iter The iterator to the row to be removed.
   * @result An iterator to the next row, or end() if there is none.
   */
  iterator erase(const iterator& iter);
  _IGNORE(gtk_tree_store_remove)

  //TODO: Make this documentation similar to documentation for Standard C++ insert methods.
  /** Creates a new row before the position.
   * If iter is end() then a new row will be appended to the list.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also prepend() and append().
   *
   * @param iter An iterator to the row before which the new row will be inserted.
   * @result An iterator to the new row.
   */
  iterator insert(const iterator& iter);
  _IGNORE(gtk_tree_store_insert_before)

  /** Creates a new row after the position.
   * If iter is end() then a new row will be prepended to the list.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also prepend() and append().
   *
   * @param iter An iterator to the row after which the new row will be inserted.
   * @result An iterator to the new row.
   */
  iterator insert_after(const iterator& iter);
  _IGNORE(gtk_tree_store_insert_after)

  /** Creates a new row at the start of the top-level.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also insert() and append().
   *
   * @result An iterator to the new row.
   */
  iterator prepend();

  /** Creates a new row at the start of the row's children.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also insert() and append().
   *
   * @param node The list of the parent row's children, as returned by Gtk::TreeModel::iterator::children().
   * @result An iterator to the new row.
   */
  iterator prepend(const TreeNodeChildren& node);


  /** Creates a new row at the end of the top-level.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also insert() and prepend().
   *
   * @result An iterator to the new row.
   */
  iterator append();

  /** Creates a new row at the end of the row's children.
   * The row will be empty - to fill in values, you need to dereference the returned iterator and use Row::operator[] or Row::set_value().
   * See also insert() and prepend().
   *
   * @param node The list of the parent row's children, as returned by Gtk::TreeModel::iterator::children().
   * @result An iterator to the new row.
   */  
  iterator append(const TreeNodeChildren& node);

  _WRAP_METHOD(void iter_swap(const iterator& a, const iterator& b), gtk_tree_store_swap)

  /** Moves @a source to the position at @a destination.
   * @a source and @a destination should be at the same level.
   * Note that this function only works with unsorted stores.
   * @param source The row that should be moved.
   * @param destination The position to move to.
   */
  void move(const iterator& source, const iterator& destination);

  /** Reorders the children of @a node to follow the order indicated by @a new_order.
   * Note that this function only works with unsorted stores.
   */
  void reorder(const TreeNodeChildren& node, const Glib::ArrayHandle<int>& new_order);

  _WRAP_METHOD(void clear(), gtk_tree_store_clear)
  _WRAP_METHOD(bool is_ancestor(const iterator& iter, const iterator& descendant) const, gtk_tree_store_is_ancestor)
  _WRAP_METHOD(int iter_depth(const iterator& iter) const, gtk_tree_store_iter_depth)

  _WRAP_METHOD(bool iter_is_valid(const iterator& iter) const, gtk_tree_store_iter_is_valid)

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

} // namespace Gtk