Re: [gtk-list] Re: how to set toggle/radio buttons without "clicked"

["Emmanuel DELOGET" <logout free fr>]

> In message <yb7g0vzw1er.fsf@icon.labs.redhat.com>you write:
> >
> >Paul Barton-Davis <pbd@Op.Net> writes:
> >> i have some radio and toggle buttons. they can be set (in-)active by
> >> the user+mouse, or programmatically as a result of data read from
> >> an external input source.
> >>
> >> if i use gtk_toggle_button_set_active() for the programmatic setting,
> >> then the "clicked" signal is emitted. How can i set the button states
> >> in a way that doesn't make it appear that there was user interaction ?
> >>
> >
> >You have to do gtk_signal_handler_block_*() around your set_active().
>
> but to use that, i need to know the handler_id that needs to be
> blocked, right ? i don't want *anything* that is connected to
> "clicked" to be invoked, even though i have no idea what is connected ...
>
> if this is written down someplace, i'll gladly go read it :)
>
    You can use
        gtk_signal_handler_block_by_func(GtkObject *, GtkSignalFunc *,
gpointer)
    (the func and the data pointer must be equal to the correponding
gtk_signal_connect()
    parameters)

    Or
        gtk_signal_handler_block_by_data(GtkObject *, gpointer)
    (the data parameter must be the same as in the gtk_signal_connect()
call)

    BTW, it should be nice to have a
        gtk_signal_handler_xxx_by_name(GtkObject *, const gchar *)
    where xxx is disconnect, block, unblock or pending.

    This would be something like this (for block_by_name)
    (this is not intended to be used in a application since
gtk_handler_quark is
    a private variable in gtksignal.c

void
gtk_signal_handler_block_by_name(GtkObject *object,
                                                        const gchar *name)
{
    GtkHandler *handler;
    guint            found_one;
    guint            signal_id;

    g_return_if_fail(object != NULL);
    g_return_if_fail(name != NULL);

    signal_id = gtk_signal_lookup (name, GTK_OBJECT_TYPE (object));
    if (signal_id >= 1)
        {
            found_one = FALSE;
            handler = gtk_object_get_data_by_id(object, gtk_handler_quark);
            while (handler)
                {
                     if (handler->id == signal_id)
                        {
                             found_one = TRUE;
                            handler->blocked += 1;
                        }
                    handler = handler->next;
                }
            if (found_one != TRUE)
                {
                    g_warning("blah blah...");
                }
        }
    else
        {
            g_warning("blah blah...");
        }
}

    Yours,

    Emmanuel