Re: Bug in GtkText

[Nuno Ferreira <nmrf rnl ist utl pt>]

On Sun, Aug 30, 1998 at 08:55:39AM -0400, Owen Taylor wrote:
> 
> Nuno Ferreira <nmrf@rnl.ist.utl.pt> writes:
> 
> > I think I found a bug in GtkText. When starting gnomecal it never shows up
> > and eats all your cpu IF you have an event on the current day.
> > I found out it's spinning in this loop at line 3389
> > 
> > - gtktext.c::find_line_containing_point 
> > /* Scroll the bottom of the line is on screen, or until
> >  * the line is the first onscreen line.
> >  */
> > while (cache->next != text->line_start_cache && lph > height)
> > {
> >     TEXT_SHOW_LINE (text, cache, "cache");
> >     TEXT_SHOW_LINE (text, cache->next, "cache->next");
> >     scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next)));
> >     lph = pixel_height_of (text, cache->next);
> > }
> > 
> > As you can see cache->next never changes so the loop can never finish.
> 
> Hmmm, actually it isn't that simple - cache->next doesn't change
> but text->line_start_cache and lph _do_ change, so the loop
> (in theory) can finish. 
> 
> I made some fixes to the Text widget recently related to problems
> like this, so if you are using 1.1.1, you might want to
> try grabbing the latest version from anoncvs.
> 
> Regards,
>                                         Owen

This was with the latest version from CVS. I checked it with GDB and I'm
almost sure that all values were not  changing. I'm certain that at least
lph kept the same value. If you need further help I'll recheck when I
manage to have some free time.

-- 
Nuno Ferreira
nmrf@rnl.ist.utl.pt