2004-09-29  Sven Neumann  <sven@gimp.org>

	* libgimpwidgets/gimppreview.[ch]
	* libgimpwidgets/gimpscrolledpreview.[ch]
	* libgimpwidgets/gimpwidgets.def: moved the offsets and the
	draw_thumb method back to the GimpPreview class.

	* libgimp/gimpdrawablepreview.c: changed accordingly.

	* plug-ins/common/bumpmap.c
	* plug-ins/common/cartoon.c
	* plug-ins/common/deinterlace.c
	* plug-ins/common/despeckle.c
	* plug-ins/common/dog.c
	* plug-ins/common/edge.c
	* plug-ins/common/engrave.c
	* plug-ins/common/exchange.c
	* plug-ins/common/gauss.c
	* plug-ins/common/grid.c
	* plug-ins/common/mblur.c
	* plug-ins/common/neon.c
	* plug-ins/common/noisify.c
	* plug-ins/common/oilify.c
	* plug-ins/common/photocopy.c
	* plug-ins/common/sel_gauss.c
	* plug-ins/common/sharpen.c
	* plug-ins/common/shift.c
	* plug-ins/common/sobel.c
	* plug-ins/common/softglow.c
	* plug-ins/common/spread.c
	* plug-ins/common/struc.c
	* plug-ins/common/unsharp.c
	* plug-ins/common/wind.c: back to using gimp_preview_get_position().

	* libgimp/gimpregioniterator.c (gimp_rgn_iterator_new): corrected
	gtk-doc comment.