Re: [Texmacs-dev] Qt-TeXmacs: segfault with KDE-Oxygen

[Gubinelli Massimiliano]

Hi,

On 19 avr. 09, at 19:21, Norbert Nemec wrote:

> Hi there,
>
> I just tracked down the segfaults of Qt-TeXmacs to the use of the  
> Oxygen style in KDE. When I have that style active, TeXmacs crashes  
> as soon as I click on a menu that contains sub-menus. Menus without  
> sub-menus work fine.

The qt port subclasses (in qt_menus.cpp) the standard qt menus to  
provide lazy behaviour (submenus are constructed only if they need  
to), this is required by the way TeXmacs works since menus are changed  
many times along the life of the application (for example when exiting  
or entering math mode) and at the moment an efficient caching  
mechanism is not in place. Maybe this subclassing causes some problems  
in the Qt/X11 version.


best,
Massimiliano

> The simple solution: use a different style.
>
> I fear the bug really sits in TeXmacs not in the style. I have never  
> experienced problems with the style in any other setting. My guess  
> would be that the menus are set up in some strange way that usually  
> works but does not really follow the standards and causes problems  
> in this special case.
>
> Greetings,
> Norbert
>
>
> _______________________________________________
> Texmacs-dev mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/texmacs-dev