Re: widget-button-face and [+] which represents more cited text

[Per Abrahamsen <abraham@dina.kvl.dk>]

Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> Pavel.Janik@inet.cz (Pavel Janík ml.) writes:
> 
> >    >  '(widget-button-face ((t (:bold nil :underline t :foreground "yellow"))))
> >    > 
> >    > and now, the whole line with [+] and [-] is underlined. However,
> >    > signature can
> > 
> > the same applies for button representing attachments - the whole line (from
> > left border of the frame to the right border) is underlined.
> 
> Emacs does (somewhat weirdly, I think) underline the rest of the line
> if the newline is underlined.  XEmacs does not.  So, uhm, does anybody
> know why Emacs does this with underlining, but not with other text
> props? 

I believe Emacs does it for all text properties.  It is very useful
for the `editable-field' widget, as you can have empty, visible fields
at the end of line.  Customize uses these all the time.