static gboolean
_dtm_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
int i;
if (NODE_OBJECT(iter)) {
if (!NODE_LAYER(iter))
return FALSE;
i = layer_object_get_index (NODE_LAYER(iter), NODE_OBJECT(iter));
++i;
NODE_OBJECT(iter) = layer_object_get_nth(NODE_LAYER(iter), i);
return NODE_OBJECT(iter) != NULL;
} else if (NODE_LAYER(iter)) {
if (!NODE_DIAGRAM(iter))
return FALSE;
i = data_layer_get_index (NODE_DIAGRAM(iter), NODE_LAYER(iter));
++i;
NODE_LAYER(iter) = data_layer_get_nth(NODE_DIAGRAM(iter), i);
return NODE_LAYER(iter) != NULL;
} else if (NODE_DIAGRAM(iter)) {
GList *list = dia_open_diagrams();
i = g_list_index (list, NODE_DIAGRAM(iter));
++i;
list = g_list_nth (list, i);
NODE_DIAGRAM(iter) = list ? list->data : NULL;
return NODE_DIAGRAM(iter) != NULL;
} else {
/* empy iter? */
GList *list = dia_open_diagrams();
NODE_DIAGRAM(iter) = list ? list->data : NULL;
return NODE_DIAGRAM(iter) != NULL;
}
return FALSE;
}
void diagram_ungroup_selected(Diagram *dia)
{
DiaObject *group;
GList *group_list;
GList *selected, *selection_copy;
int group_index;
int any_groups = 0;
if (g_list_length(dia->data->selected) < 1) {
message_error("Trying to ungroup with no selected objects.");
return;
}
selection_copy = g_list_copy(dia->data->selected);
selected = selection_copy;
while (selected != NULL) {
group = (DiaObject *)selected->data;
if (IS_GROUP(group)) {
Change *change;
/* Fix selection */
diagram_unselect_object(dia, group);
group_list = group_objects(group);
group_index = layer_object_get_index(dia->data->active_layer, group);
change = undo_ungroup_objects(dia, group_list, group, group_index);
(change->apply)(change, dia);
diagram_select_list(dia, group_list);
any_groups = 1;
}
selected = g_list_next(selected);
}
g_list_free(selection_copy);
if (any_groups) {
diagram_modified(dia);
diagram_flush(dia);
undo_set_transactionpoint(dia->undo);
}
}
static GtkTreePath *
_dtm_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkTreePath *result;
int index = 0;
if (!NODE_DIAGRAM(iter) && !NODE_LAYER(iter) && !NODE_OBJECT(iter)) {
/* the root path */
return gtk_tree_path_new_first ();
}
result = gtk_tree_path_new ();
if (NODE_DIAGRAM(iter)) {
GList *list = dia_open_diagrams();
gtk_tree_path_append_index (result, g_list_index (list, NODE_DIAGRAM(iter)));
}
if (NODE_LAYER(iter)) {
g_return_val_if_fail (NODE_DIAGRAM(iter) == layer_get_parent_diagram (NODE_LAYER(iter)), NULL);
index = data_layer_get_index (NODE_DIAGRAM(iter), NODE_LAYER(iter));
if (index >= 0)
gtk_tree_path_append_index (result, index);
}
if (index >= 0 && NODE_OBJECT(iter)) {
g_return_val_if_fail (NODE_LAYER(iter) == dia_object_get_parent_layer (NODE_OBJECT(iter)), NULL);
index = layer_object_get_index (NODE_LAYER(iter), NODE_OBJECT(iter));
if (index >= 0)
gtk_tree_path_append_index (result, index);
}
if (index < 0) {
gtk_tree_path_free (result);
return NULL;
}
return result;
}
//! objects are kept in an ordered list, this is the index of the given object
int
dia::Layer::object_index (Object* o) const
{
g_return_val_if_fail (self != NULL, -1);
return layer_object_get_index (self, o->Self());
}
