+static void
+set_indicator_size (GtkTreeViewColumn *column,
+ GtkCellRenderer *cell,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ gint size;
+ GtkTreePath *path;
+
+ path = gtk_tree_model_get_path (model, iter);
+ size = gtk_tree_path_get_indices (path)[0] * 2 + 10;
+ gtk_tree_path_free (path);
+
+ g_object_set (cell, "indicator_size", size, NULL);
+}
+