handle case where sibling == iter (gtk_tree_store_insert_after): handle

handle case where sibling == iter (gtk_tree_store_insert_after): handle

2001-01-10  Havoc Pennington  <hp@redhat.com>

	* gtk/gtktreestore.c (gtk_tree_store_insert_before): handle case
	where sibling == iter
	(gtk_tree_store_insert_after): handle sibling == iter
	(gtk_tree_store_prepend): remove stamp checks
	(gtk_tree_store_insert_before): ditto
	(gtk_tree_store_append): ditto
	(gtk_tree_store_get_path): ditto
	(gtk_tree_store_get_value): ditto
	(gtk_tree_store_iter_has_child): ditto
	(gtk_tree_store_iter_n_children): ditto
	(gtk_tree_store_iter_nth_child): ditto
	(gtk_tree_store_insert_after): ditto
	(gtk_tree_store_is_ancestor): ditto
	(gtk_tree_store_iter_depth): ditto
	(gtk_tree_store_insert_before): assert that sibling's parent is
	the same as the passed-in parent
	(gtk_tree_store_insert_after): assert that sibling's parent is
	the same as the passed-in parent

	* gtk/gtktreemodel.c (gtk_tree_model_get_first): new convenience
	function to get the first iterator in a model

	* gtk/gtktreestore.c (gtk_tree_store_get_root_iter): remove,
	conventionally the "root" in this sense is just NULL afaict.

	* gtk/gtkliststore.c (gtk_list_store_insert_before): handle case
	where sibling == iter
	(gtk_list_store_insert_after): handle case where sibling == iter

	* tests/testtreeview.c (run_automated_tests): fairly lame basic
	automated tests for ListStore, TreeStore

        * gtk/gtkliststore.c (gtk_list_store_remove): update tail pointer
	(gtk_list_store_insert): update tail pointer, and fix it to work
	(gtk_list_store_insert_before): update tail pointer, and fix it to work
	(gtk_list_store_append): use tail to be faster
	(gtk_list_store_prepend): fix it, update tail pointer
	(gtk_list_store_insert_after): fix it, update tail pointer

	* gtk/gtkliststore.h (struct _GtkListStore): add tail pointer for
	the list