1// -*- c++ -*-
2/* $Id: treesortable.ccg,v 1.7 2006/05/11 11:40:24 murrayc Exp $ */
3
4/* Copyright 1998-2002 The gtkmm Development Team
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free
18 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21static int SignalProxy_Compare_gtk_callback(GtkTreeModel* model, GtkTreeIter* lhs, GtkTreeIter* rhs, void* data)
22{
23  Gtk::TreeSortable::SlotCompare* the_slot = static_cast<Gtk::TreeSortable::SlotCompare*>(data);
24
25  try
26  {
27    // use Slot::operator()
28    return (*the_slot)(Gtk::TreeIter(model, lhs), Gtk::TreeIter(model, rhs));
29  }
30  catch(...)
31  {
32    Glib::exception_handlers_invoke();
33  }
34
35  return 0;
36}
37
38static void SignalProxy_Compare_gtk_callback_destroy(void* data)
39{
40  delete static_cast<Gtk::TreeSortable::SlotCompare*>(data);
41}
42
43namespace Gtk
44{
45
46void TreeSortable::set_sort_func(int sort_column_id, const SlotCompare& slot)
47{
48  SlotCompare* slot_copy = new SlotCompare(slot);
49
50  gtk_tree_sortable_set_sort_func(
51      gobj(), sort_column_id,
52      &SignalProxy_Compare_gtk_callback, slot_copy,
53      &SignalProxy_Compare_gtk_callback_destroy);
54}
55
56void TreeSortable::set_sort_func(const Gtk::TreeModelColumnBase& sort_column, const SlotCompare& slot)
57{
58  set_sort_func(sort_column.index(), slot);
59}
60
61void TreeSortable::set_default_sort_func(const SlotCompare& slot)
62{
63  SlotCompare* slot_copy = new SlotCompare(slot);
64
65  gtk_tree_sortable_set_default_sort_func(
66      gobj(),
67      &SignalProxy_Compare_gtk_callback, slot_copy,
68      &SignalProxy_Compare_gtk_callback_destroy);
69}
70
71void TreeSortable::unset_default_sort_func()
72{
73  gtk_tree_sortable_set_default_sort_func(
74      gobj(), 0, 0, 0); /* See GTK+ docs about the 0s. */
75}
76
77_DEPRECATE_IFDEF_START
78void TreeSortable::set_sort_column_id(const TreeModelColumnBase& sort_column, SortType order)
79{
80  set_sort_column(sort_column, order);
81}
82
83void TreeSortable::set_sort_column_id(int sort_column_id, SortType order)
84{
85  set_sort_column(sort_column_id, order);
86}
87_DEPRECATE_IFDEF_END
88
89} // namespace Gtk
90
91