Thu Jan 21 16:03:02 1999  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtkbutton.c (gtk_button_expose): Code cleanup.

	* gtk/gtktree.c: Add a paint routine, fix up bugs
	in drawing where if the expose area was contained
	completely in the right side of the tree the background
	wasn't redraw, etc.

	* gtk/gtkwidget.c (gtk_widget_clip_rect): Fix a bug
	in clipping draw regions while propagating them
	upwards.