[Fedora-trans-ar] Re: Arabic issue #18: app.setFont(QFont("")) causes a run-time crash!

[Munzir Taha]

On Thursday 10 March 2005 07:33, Munzir Taha wrote:
> On Yaum al-Khamees 15 Muharram 1426 13:18, Munzir Taha wrote:
> >         app.setFont(QFont(""));
> >
> >         QHBoxWidget *hbox = new QHBoxWidget(0);
> >         QSpinBox *spinBox = new QSpinBox(hbox);
> >
> >         spinBox->setValue(35);
> >         hbox->show();
> >
> > PROBLEM:
> > A run-time crash with this message:
> > ASSERT: "(next == length && gp == current.num_glyphs) ||
> > logClusters[next] == gp" in file
> > /usr/local/qt/src/gui/text/qtextlayout.cpp, line 1146 Aborted (core
> > dumped)
>
> Lars, have you been able to reproduce/solve this? If not, I will try to
> come with something more concrete than QFont(""). Just drop me a note.

This is still reproducable with Qt 4.0.0-b2-snapshot-20050318 as

ASSERT: "(next == length && gp == current.num_glyphs) || logClusters[next] == 
gp" in file /usr/local/qt-sync/src/gui/text/qtextlayout.cpp, line 1121

I managed now to reproduce it with QFont("anygarbage"), so for some reason 
QFont didn't recognize some fonts passed which indicates two bugs. Bug 1: why 
not recognized? Bug 2: Even though why not falling back to the default 
application font instead of the crash? I can send/post one of those fonts 
that are not recognized if wanted.

-- 
Munzir Taha  PGP Key available
gpg --recv-keys --keyserver www.mandrakesecure.net F0671821

Telecommunications and Electronics Engineer
Mandrake Club Member
Maintainer of the OpenBugs project page at
http://www.arabic-fedora.org/munzir/OpenBugs.html
Maintainer of Fedora Arabic Translation Project
https://listman.redhat.com/mailman/listinfo/fedora-trans-ar
CIW Designer, ICDL, MOUS, Linux+, LPI 101
New Horizons CLC, Riyadh, SA