2006-06-12  Kristian Rietveld  <kris@imendio.com>

	Introduce grid and tree lines in GtkTreeView. (#106406,
	Martyn Russell).

	* gtk/gtktreeprivate.h: add new fields to GtkTreePrivate.

	* gtk/gtkenums.h: add GtkTreeViewGridLines.

	* gtk/gtktreeview.[ch] (gtk_tree_view_set_grid_lines),
	(gtk_tree_view_get_grid_lines),
	(gtk_tree_view_set_enable_tree_lines),
	(gtk_tree_view_get_enable_tree_lines): new API,
	(gtk_tree_view_class_init): new properties,
	(gtk_tree_view_init), (gtk_tree_view_{get,set}_property),
	(gtk_tree_view_realize), (gtk_tree_view_draw_grid_lines),
	(gtk_tree_view_bin_expose): implement.

	* gtk/gtk.symbols: update.