Use pango_layout_get_pixel_extents() to remove a large number of '/

Use pango_layout_get_pixel_extents() to remove a large number of '/

Sun Jul  2 17:06:40 2000  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkcalendar.c gtk/gtkclist.c gtk/gtkctree.c gtk/gtkhscale.c
	gtk/gtkprogressbar.c gtk/gtkscale.c gtk/gtkvscale.c gtk/gtkaccellabel.c: Use
	pango_layout_get_pixel_extents() to remove a large number of '/ PANGO_SCALE'.

	* gtk/gtk[hv]ruler.c gtk/gtklabel.c: replace some / PANGO_SCALE with
	PANGO_PIXELS() macro.