1 files changed, 74 insertions, 0 deletions

diff --git a/src/common/iterators.c b/src/common/iterators.c
new file mode 100644
index 00000000..36fe7dba
--- /dev/null
+++ b/src/common/iterators.c
@@ -0,0 +1,74 @@
+/*
+     This file is part of GNUnet
+     (C) 2006 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 2, or (at your
+     option) any later version.
+
+     GNUnet 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
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file src/common/iterators.c
+ * @brief This file contains GTK helper functions related to iterations
+ * @author Igor Wronsky
+ * @author Christian Grothoff
+ */
+
+/**
+ * Identical to "gtk_tree_selection_selected_foreach",
+ * except that modifications of the underlying model
+ * during the iteration are tolerated.
+ */
+void ggc_tree_selection_selected_foreach(GtkTreeSelection *selection,
+                                         GtkTreeSelectionForeachFunc func,
+                                         gpointer data) {
+  unsigned int i;
+  unsigned int size;
+  GList * selected;
+  GtkTreeRowReference ** refs;
+  GtkTreeModel * model;
+  GtkTreePath * path;
+  GtkTreeIter iter;
+
+  selected = gtk_tree_selection_get_selected_rows(selection,
+                                                  &model);
+
+  i = g_list_length(selected);
+  size = 0;
+  refs = NULL;
+  GROW(refs,
+       size,
+       i);
+  for (i=0;i<size;i++)
+    refs[i] = gtk_tree_row_reference_new(model,
+                                         g_list_nth_data(selected, i));
+  g_list_foreach(selected,
+                 (GFunc) &gtk_tree_path_free,
+                 NULL);
+  g_list_free(selected);
+  for (i=0;i<size;i++) {
+    path = gtk_tree_row_reference_get_path(refs[i]);
+    gtk_tree_row_reference_free(refs[i]);
+    if (TRUE == gtk_tree_model_get_iter(model,
+                                        &iter,
+                                        path))
+      func(model,
+           path,
+           &iter,
+           data);
+    gtk_tree_path_free(path);
+  }
+  GROW(refs,
+       size,
+       0);
+}