2007-11-20  Michael Natterer  <mitch@gimp.org>

	* app/widgets/widgets-types.h
	* app/widgets/Makefile.am
	* app/widgets/gimphandlebar.[ch]: new widget implementing the slider
	bar known from histogram and levels.

	* app/widgets/gimphistogrambox.[ch]: use the new widget. General
	cleanup and UI streamlining.


svn path=/trunk/; revision=24198