> > >> How can I use a Gtk2::SpinButton to prompt for an integer expressed in
> > >> hex? I've tried the following, but it fails.
> > >>
> > >> ...
> > >>
> > >> The text appears to be correct while I hold either arrow button down; I
> > >> see hex values incrementing. However, single clicks of an arrow button
> > >> fail if the displayed text contains A-F. Hitting the Enter key also
> > >> fails on the same values. In both cases, the text changes to a decimal
> > >> integer.
> > >
> > > What do the '$value's look like in the outputCB (either in a debugger or
> > > ...).
> >
> > With single clicks of the up arrow button, the values in outputCB()
> > increment from 0 to 10. 10 correctly displays as A. One more click of the
> > up arrow calls outputCB() twice for some reason, the first time with a
> > value of 0, and the second with a value of 1. So visibly, 10 wraps to 1
> > instead of 11, or B. If I manually type 'FF' and hit the Enter key,
> > outputCB() is called with a value of 0. I've played with callbacks on the
> > 'input' and 'changed' signals too, but nothing has worked so far.
> >
> > I learned something else. If I change the sprintf() to use '0x%X' instead
> > of '%X', it seems to work. It also works in octal with '0%o' and binary
> > with '0b%b'.
> >
> > Unfortunately, the '0x' prefix is unacceptable to my users. Grr. So I'm
> > still in search of a way to spin a hex value, but with no '0x'. Knowing
> > this about the prefix, though, still may be useful to others wanting
> > something similar.
>
> Hi Jim
>
> If that is the case can you not use chain the sprintf through substr?
>
> e.g.
>
> > $spin->set_text(substr (sprintf '0x%X',$value), 2);
>
> which will drop the first 2 characters of the string that is printed > by
> sprintf?
That's the same as what I had originally, which failed.
$spin->set_text(sprintf('%X',$value));
Gtk2::SpinButton seems to spin hex values fine if the "0x" is in the string.
Your substr() version and my original fail, I think, because the "0x" is
missing. My users, of course, don't want to type the "0x" since the input is
always hex, and it's really a programming convention; not something for a user
interface.
Thanks.
Jim
_______________________________________________
gtk-perl-list mailing list
gtk-perl-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-perl-list
