bug#20677: tooltips generate garbage

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 01 Jun 2015 23:55:55 +0200
> From: Angelo Graziosi <angelo.graziosi@alice.it>
> CC: 20677@debbugs.gnu.org, jan.h.d@swipnet.se
> 
> Il 01/06/2015 18:19, Eli Zaretskii ha scritto:
> >> Date: Mon, 01 Jun 2015 17:58:36 +0200
> >> From: Angelo Graziosi <angelo.graziosi@alice.it>
> >> CC: 20677@debbugs.gnu.org, jan.h.d@swipnet.se
> >>
> >> Hmm... given the issue and looking at the changes, this caught my attention:
> >>
> >> --- a/src/gtkutil.c
> >> +++ b/src/gtkutil.c
> >> @@ -3824,8 +3824,7 @@ xg_update_scrollbar_pos (struct frame *f,
> >>                 above.  */
> >>    	  oldw += (scale - 1) * oldw;
> >>    	  oldx -= (scale - 1) * oldw;
> >> -          x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
> >> -                        oldx, oldy, oldw, oldh);
> >> +          x_clear_area (f, oldx, oldy, oldw, oldh);
> >>
> >> maybe, on linux+X Emacs needs something like this
> >>
> >> # if def(...X11..)
> >>     [...]
> >>     x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)...
> >> #else
> >>     x_clear_area (f, oldx, oldy, oldw, oldh)...
> >> #endif
> >
> > No, the calling sequence of x_clear_area has changed, so that change
> > was correct, I think.  Are you saying that reverting it makes tooltips
> > work again?
> 
> Really I didn't tested that.. Eventually, I will test that over the next 
> few days..

Can you show a screenshot of the bad tooltip display?