2008-07-11  Martin Nordholts  <martinn@svn.gnome.org>

	* app/display/gimpdisplayshell-scroll.[ch]
	(gimp_display_shell_get_viewport)
	(gimp_display_shell_get_scaled_viewport)
	(gimp_display_shell_get_scaled_image_viewport_offset): const- and
	g_return_if_fail-ify.

svn path=/trunk/; revision=26140