2001-02-05  Michael Natterer  <mitch@gimp.org>

	* app/Makefile.am
	* app/apptypes.h: some new files and data types:

	* app/gimppreview.[ch]: new widgets which provides a view
	of a GimpViewable.

	* app/gimpcontainerview.[ch]: new abstract widget base class for
	views of GimpContainers of GimpViewables

	* app/gimpcontainerlistview.[ch]: (still) simple implementation of
	a list view of the container.

	* app/gimpbrush.[ch]
	* app/gimppattern.[ch]: provide dumb implementations of the
	GimpViewable's "preview" method.

	* app/image_render.c: quick bad hack to enable preview sizes which
	are != "preview_size": Always allocate data chunks for previews up
	to 256 pixels width.

	* app/drawable.c: emit the "incalidate_preview" signal from
	drawable_update(). This may cause useless updates at the moment
	but as we want to move from explicit updates to signal-driven
	model-view stuff it's the right thing (TM).

	* app/commands.[ch]
	* app/interface.c
	* app/menus.c: Added a "Test dialogs" menu to the Toolbox.

	* app/pdb/image_cmds.c
	* libgimp/gimpenums.h
	* plug-ins/script-fu/script-fu-constants.c
	* tools/pdbgen/enums.pl: propagated the new alpha channel stuff
	to the autogenerated files.