[Gimp-developer] gimp_coordinates and "value_changed"

[David Necas (Yeti) <yeti@xxxxxxxxxxxxxxx>]

Hello,

could someone please explain me why gimp_coordinates_callback()
does this (libgimpwidgets/gimpwidgets.c:1036):

  if (gimp_chain_button_get_active (gcd->chainbutton))
      {
          g_signal_stop_emission_by_name (G_OBJECT (widget), "value_changed");
          ........

It may have some esoteric reasons I don't see, but the
practical outcome is when one connects a callback to the
GimpSizeEntry on "value_changed", the callback is called
when only when the chain button is disconnected.

Or is there any other way of getting "value_changed"
delivered when the value changes, which work regardless of
the chain button state?  (Disassembling the GtkTable and
connecting directly to spinbuttons/entries doesn't count,
though it surely is a way).

Thanks,

Yeti