2001-11-10  Michael Natterer  <mitch@gimp.org>

	* app/Makefile.am
	* app/qmask.[ch]: removed.

	* app/core/gimpimage.[ch]: added "qmask_changed" signal and
	gimp_image_[set|get]_qmask_state().

	* app/display/Makefile.am
	* app/display/gimpdisplayshell-qmask.[ch]: put the stuff here.

	* app/display/gimpdisplayshell-handlers.[ch]: new files: handlers
	for GimpImage signals handled by GimpDisplayShell.

	* app/display/gimpdisplay-handlers.c: removed some of them here.
	Don't include any GimpDisplayShell stuff any more.

	* app/display/gimpdisplay.c: no need to update the qmask buttons
	in gimp_display_flush_whenever().

	* app/display/gimpdisplayshell.c: call gimp_display_shell_connect()
	and disconnect().