2006-05-23  Michael Natterer  <mitch@gimp.org>

	* app/tools/gimptransformtool.c (gimp_transform_tool_dialog_update):
	don't call the virtual function if there is no dialog.

	(gimp_transform_tool_recalc): show the dialog here after updating it.

	* app/tools/gimpperspectivetool.c
	* app/tools/gimprotatetool.c
	* app/tools/gimpscaletool.c
	* app/tools/gimpsheartool.c (dialog_update): don't show it here.