+/** @brief Recursion step for choose_get_visible()
+ * @param parent A visible node, or NULL for the root
+ * @param cdv Visible nodes accumulated here
+ */
+static void choose_visible_recurse(GtkTreeIter *parent,
+ void (*callback)(GtkTreeIter *it,
+ struct choosedata *cd,
+ void *userdata),
+ void *userdata) {
+ struct choosedata *cd;
+ int expanded;
+ if(parent) {
+ cd = choose_iter_to_data(parent);
+ callback(parent, cd, userdata);
+ if(cd->type != CHOOSE_DIRECTORY)
+ /* Only directories can be expanded so we can avoid the more
+ * expensive test below */
+ return;
+ GtkTreePath *parent_path
+ = gtk_tree_model_get_path(GTK_TREE_MODEL(choose_store),
+ parent);
+ expanded = gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view),
+ parent_path);
+ gtk_tree_path_free(parent_path);
+ } else
+ expanded = 1;
+ /* See if parent is expanded */
+ if(expanded) {
+ /* Parent is expanded, visit all its children */
+ GtkTreeIter it[1];
+ gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
+ it,
+ parent);
+ while(itv) {
+ choose_visible_recurse(it, callback, userdata);
+ itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it);
+ }
+ }
+}
+
+static void choose_visible_visit(void (*callback)(GtkTreeIter *it,
+ struct choosedata *cd,
+ void *userdata),
+ void *userdata) {
+ choose_visible_recurse(NULL, callback, userdata);
+}
+
+static void count_choosedatas(struct choosedata **cds,
+ int counts[2]) {
+ struct choosedata *cd;
+ counts[CHOOSE_FILE] = counts[CHOOSE_DIRECTORY] = 0;
+ while((cd = *cds++))
+ ++counts[cd->type];
+}
+
+
+static void choose_selectall_sensitive_callback
+ (GtkTreeIter attribute((unused)) *it,
+ struct choosedata *cd,
+ void *userdata) {
+ if(cd->type == CHOOSE_FILE)
+ ++*(int *)userdata;
+}
+