2001-07-31  Sven Neumann  <sven@gimp.org>

	* app/core/core-types.h: removed g_signal_handlers_disconnect_by_data
	again. As Owen pointed out, it's generally a bad idea to use it since
	you can't be absolutely sure that no one else has a pointer to the
	data you are disconnecting.

	* app/gdisplay.c: added the macro here temporarily.

	* app/module_db.c
	* app/undo_history.c
	* app/gui/brush-editor.c
	* app/gui/brush-select.c
	* app/gui/gradient-select.c
	* app/gui/pattern-select.c: use g_signal_handlers_disconnect_by_func.

	* libgimpwidgets/gimpbutton.c
	* libgimpwidgets/gimpchainbutton.c
	* libgimpwidgets/gimpcolorarea.c
	* libgimpwidgets/gimpcolorbutton.c
	* libgimpwidgets/gimpfileselection.c
	* libgimpwidgets/gimphelpui.c
	* libgimpwidgets/gimpoffsetarea.c
	* libgimpwidgets/gimppatheditor.c
	* libgimpwidgets/gimpsizeentry.c
	* libgimpwidgets/gimpunitmenu.c
	* libgimpwidgets/gimpwidgets.c: GObject porting.