1 // Generated by gtkmmproc -- DO NOT MODIFY!
4 #include <gtkmm/treeiter.h>
5 #include <gtkmm/private/treeiter_p.h>
10 /* Copyright 1998-2002 The gtkmm Development Team
12 * This library is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Library General Public
14 * License as published by the Free Software Foundation; either
15 * version 2 of the License, or (at your option) any later version.
17 * This library is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Library General Public License for more details.
22 * You should have received a copy of the GNU Library General Public
23 * License along with this library; if not, write to the Free
24 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <gtkmm/treemodel.h>
32 // This is copied from Totem. In future there might be a version in GTK+ itself - see bug #
33 static void gtkmm_gtk_tree_model_iter_previous(GtkTreeModel* tree_model, GtkTreeIter* iter)
35 GtkTreePath *const path = gtk_tree_model_get_path(tree_model, iter);
37 if(gtk_tree_path_prev(path))
38 gtk_tree_model_get_iter(tree_model, iter, path);
40 g_assert_not_reached();
42 gtk_tree_path_free(path);
45 } // anonymous namespace
51 /**** Gtk::TreeIter ********************************************************/
60 TreeIter::TreeIter(TreeModel* model)
67 TreeIter::TreeIter(GtkTreeModel* model, const GtkTreeIter* iter)
70 model_ (dynamic_cast<TreeModel*>(Glib::wrap_auto((GObject*) model))),
74 TreeIter& TreeIter::operator++()
78 GtkTreeIter previous = gobject_;
80 if(!gtk_tree_model_iter_next(model_->gobj(), &gobject_))
83 gtk_tree_model_iter_parent(model_->gobj(), &gobject_, &previous);
89 const TreeIter TreeIter::operator++(int)
93 TreeIter previous (*this);
95 if(!gtk_tree_model_iter_next(model_->gobj(), &gobject_))
98 gtk_tree_model_iter_parent(model_->gobj(), &gobject_, &previous.gobject_);
104 TreeIter& TreeIter::operator--()
108 gtkmm_gtk_tree_model_iter_previous(model_->gobj(), &gobject_);
110 else // --end yields last
112 GtkTreeIter next = gobject_;
113 GtkTreeIter *const parent = (next.stamp != 0) ? &next : 0;
115 const int index = gtk_tree_model_iter_n_children(model_->gobj(), parent) - 1;
116 is_end_ = !gtk_tree_model_iter_nth_child(model_->gobj(), &gobject_, parent, index);
124 const TreeIter TreeIter::operator--(int)
126 TreeIter next (*this);
130 gtkmm_gtk_tree_model_iter_previous(model_->gobj(), &gobject_);
132 else // --end yields last
134 GtkTreeIter *const parent = (next.gobject_.stamp != 0) ? &next.gobject_ : 0;
136 const int index = gtk_tree_model_iter_n_children(model_->gobj(), parent) - 1;
137 is_end_ = !gtk_tree_model_iter_nth_child(model_->gobj(), &gobject_, parent, index);
145 /* There is no public gtk_tree_iter_equal(), so we must write our own.
147 bool TreeIter::equal(const TreeIter& other) const
149 g_assert(model_ == other.model_);
151 // A GtkTreeIter has the same stamp value as its model.
152 g_assert(gobject_.stamp == other.gobject_.stamp || is_end_ || other.is_end_);
154 // If all user_data pointers are equal we can assume the iterators to be
155 // equal. This should be safe since GtkTreeIter lacks destroy notification,
156 // thus there is no way to attach more data fields to the iterator.
157 return (is_end_ == other.is_end_) &&
158 (gobject_.user_data == other.gobject_.user_data) &&
159 (gobject_.user_data2 == other.gobject_.user_data2) &&
160 (gobject_.user_data3 == other.gobject_.user_data3);
163 TreeIter::operator bool() const
165 // Test whether the GtkTreeIter is valid and not an end iterator. This check
166 // is almost the same as the private VALID_ITER() macro in gtkliststore.c and
168 return (!is_end_ && gobject_.stamp != 0);
171 void TreeIter::setup_end_iterator(const TreeIter& last_valid)
173 g_assert(model_ == last_valid.model_);
175 if(last_valid.is_end_)
176 gobject_ = last_valid.gobject_;
178 gtk_tree_model_iter_parent(model_->gobj(), &gobject_, const_cast<GtkTreeIter*>(&last_valid.gobject_));
183 void TreeIter::set_model_refptr(const Glib::RefPtr<TreeModel>& model)
185 model_ = model.operator->();
188 void TreeIter::set_model_gobject(GtkTreeModel* model)
190 model_ = dynamic_cast<TreeModel*>(Glib::wrap_auto((GObject*) model));
193 GtkTreeModel* TreeIter::get_model_gobject() const
195 return (model_) ? model_->gobj() : 0;
199 int TreeIter::get_stamp() const
201 return gobj()->stamp;
204 void TreeIter::set_stamp(int stamp)
206 gobj()->stamp = stamp;
210 /**** Gtk::TreeRow *********************************************************/
212 const TreeNodeChildren& TreeRow::children() const
216 return static_cast<const TreeNodeChildren&>(static_cast<const TreeIter&>(*this));
219 TreeIter TreeRow::parent() const
221 TreeIter iter (model_);
224 iter.gobject_ = gobject_;
226 gtk_tree_model_iter_parent(model_->gobj(), iter.gobj(), const_cast<GtkTreeIter*>(&gobject_));
231 void TreeRow::set_value_impl(int column, const Glib::ValueBase& value) const
233 model_->set_value_impl(*this, column, value);
236 void TreeRow::get_value_impl(int column, Glib::ValueBase& value) const
238 model_->get_value_impl(*this, column, value);
241 TreeRow::operator bool() const
243 return TreeIter::operator bool();
247 /**** Gtk::TreeNodeChildren ************************************************/
249 TreeNodeChildren::iterator TreeNodeChildren::begin()
251 iterator iter (model_);
253 // If the iterator is invalid (stamp == 0), assume a 'virtual' toplevel
254 // node. This behaviour is needed to implement Gtk::TreeModel::children().
256 if(gobject_.stamp != 0)
258 if(!gtk_tree_model_iter_children(model_->gobj(), iter.gobj(), const_cast<GtkTreeIter*>(&gobject_)))
260 // Assign the already known parent, in order to create an end iterator.
261 iter.gobject_ = gobject_;
267 if(!gtk_tree_model_get_iter_first(model_->gobj(), iter.gobj()))
269 // No need to copy the GtkTreeIter, since iter.gobject_ is already empty.
277 TreeNodeChildren::const_iterator TreeNodeChildren::begin() const
279 //TODO: Reduce the copy/paste from the non-const begin()?
281 const_iterator iter (model_);
283 // If the iterator is invalid (stamp == 0), assume a 'virtual' toplevel
284 // node. This behaviour is needed to implement Gtk::TreeModel::children().
286 if(gobject_.stamp != 0)
288 if(!gtk_tree_model_iter_children(model_->gobj(), iter.gobj(), const_cast<GtkTreeIter*>(&gobject_)))
290 // Assign the already known parent, in order to create an end iterator.
291 iter.gobject_ = gobject_;
297 if(!gtk_tree_model_get_iter_first(model_->gobj(), iter.gobj()))
299 // No need to copy the GtkTreeIter, since iter.gobject_ is already empty.
307 TreeNodeChildren::iterator TreeNodeChildren::end()
309 // Just copy the parent, and turn it into an end iterator.
310 iterator iter (*this);
315 TreeNodeChildren::const_iterator TreeNodeChildren::end() const
317 // Just copy the parent, and turn it into an end iterator.
318 const_iterator iter (*this);
323 TreeNodeChildren::value_type TreeNodeChildren::operator[](TreeNodeChildren::size_type index) const
325 iterator iter (model_);
327 GtkTreeIter *const parent = const_cast<GtkTreeIter*>(get_parent_gobject());
329 if(!gtk_tree_model_iter_nth_child(model_->gobj(), iter.gobj(), parent, index))
331 // Assign the already known parent, in order to create an end iterator.
332 iter.gobject_ = gobject_;
339 TreeNodeChildren::size_type TreeNodeChildren::size() const
341 GtkTreeIter *const parent = const_cast<GtkTreeIter*>(get_parent_gobject());
343 return gtk_tree_model_iter_n_children(model_->gobj(), parent);
346 bool TreeNodeChildren::empty() const
348 // If the iterator is invalid (stamp == 0), assume a 'virtual' toplevel
349 // node. This behaviour is needed to implement Gtk::TreeModel::children().
351 if(gobject_.stamp == 0)
354 return !gtk_tree_model_get_iter_first(model_->gobj(), &dummy);
357 return !gtk_tree_model_iter_has_child(model_->gobj(), const_cast<GtkTreeIter*>(&gobject_));
365 } // anonymous namespace
373 GType TreeIterBase::get_type()
375 return gtk_tree_iter_get_type();
378 TreeIterBase::TreeIterBase()
380 GLIBMM_INITIALIZE_STRUCT(gobject_, GtkTreeIter);
383 TreeIterBase::TreeIterBase(const GtkTreeIter* gobject)
388 GLIBMM_INITIALIZE_STRUCT(gobject_, GtkTreeIter);