2008-11-08  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpdrawable.[ch]: add optional parameter "PixelRegion
	*destPR" to GimpDrawable::apply_region().

	* app/core/gimpdrawable-combine.[ch]: if the passed destPR is !=
	NULL, write the result of the combination into that region instead
	of the drawable's tiles. The region must have the exact size of
	the result.

	* app/core/gimp-edit.c
	* app/core/gimpchannel.c
	* app/core/gimpdrawable-blend.c
	* app/core/gimpdrawable-bucket-fill.c
	* app/core/gimpdrawable-shadow.c
	* app/core/gimpdrawable-stroke.c
	* app/core/gimpimagemap.c
	* app/core/gimplayer-floating-sel.c
	* app/paint/gimppaintcore.c: pass NULL as destPR. Code actually
	using this feature follows.


svn path=/trunk/; revision=27574