2004-01-13  Michael Natterer  <mitch@gimp.org>

	* app/base/gimphistogram.c: added GimpHistogramChannel index
	fiddling hacks for GRAYA images to all gimp_histogram_get_*()
	functions. The public API now does what their enum values pretend
	to do.

	(gimp_histogram_calculate): restructured to reduce indentation depth.

	* app/widgets/gimphistogrameditor.c
	* app/widgets/gimphistogramview.c
	* tools/pdbgen/pdb/color.pdb: removed hacks here and always use
	the unchanged enum values.

	* app/pdb/color_cmds.c: regenerated.