2001-02-09  Michael Natterer  <mitch@gimp.org>

	* app/gimpcontainergridview.[ch]
	* app/gimpcontainerlistview.[ch]
	* app/gimpcontainerview.[ch]: follow the GimpPreview API change
	and take only "size" instead of "width" and "height" in the
	constructor.

	* app/gimpdnd.[ch]: first attempt to hack GtkType based DND which
	speaks in terms of GimpViewable instead of Brush, Pattern, ...
	Added functions to remove DND callbacks (used by the multi-views).

	* app/gimppreview.[ch]: new function gimp_preview_set_size_full().

	* app/commands.c: updated the example dialogs to be DND aware.

	* app/gimpimage.c: fixed preview size calculation by ensuring a
	minimal width/height of 1 pixel.
	Reported by Dave Neary <dneary@eircom.net>