2004-06-23  Michael Natterer  <mitch@gimp.org>

	* app/actions/context-commands.h: removed enum GimpContextSelectType.

	* app/actions/actions-types.h: added enum GimpActionSelectType.

	* app/actions/actions.[ch]: added utility functions
	action_select_value() and action_select_object().

	* app/actions/context-actions.c
	* app/actions/context-commands.c: changed accordingly.

	* app/actions/layers-actions.c
	* app/actions/layers-commands.[ch]: merged the layer select
	callbacks into one using the GimpActionSelectType functions. Added
	actions and callbacks for modifying the active layer's opacity.

	* app/menus/menus-types.h: #incude "actions/action-types.h".

	* app/gui/gui-types.h: #incude "menus/menus-types.h".

	* app/gui/preferences-dialog.c: allow to enable/disable input
	controllers.