Qt is crashing when showing this tooltip. Why?
My Qt application keeps on crashing when "this tooltip":http://www.qtcentre.org/attachment.php?attachmentid=4996&d=1280131546 is shown
To reproduce the problem just set a widget tooltip in the following way:
@QFile file ( "tooltip.txt" ) ;
QString tooltipText = stream.readAll();
I'm using the latest version of Qt (4.6.3) on Windows
I'm going to submit a bugreport, but in the meanwhile can anyone suggest me a solution to fix this crash problem?
Thanks in advance for your help
It's strange, because with root rights i don't get crash and have Plastique style on widget. But without root rights i have Windows Classic style (Ubuntu) and crash with this errors:
0x005354a3 in (anonymous namespace)::LineBreakHelper::adjustRightBearing (this=0xbfffdf18,
maxGlyphs=2147483647) at /var/tmp/qt-src/src/gui/text/qtextlayout.cpp:1692
Something wrong here:
@ inline void adjustRightBearing()
if (currentPosition <= 0)
qreal rb; fontEngine->getGlyphBearings(currentGlyph(), 0, &rb); rightBearing = qMin(QFixed(), QFixed::fromReal(rb)); }@
For me too it is crashing in that function, and precisely when currentGlyph() is called.
Does it crash when using other styles (run the application with @appname -style STYLENAME@)? That would narrow the issue down to the style used:-)
Please consider filing a "bugreport":http://bugreports.qt.nokia.com/ providing as much information as possible.
where can I find the list of styles strings I can launch the application with?
That is indeed a bit tricky:-) The following piece of code dumps the names:
int main(int, char *)
QStyleFactory *sf = new QStyleFactory;
qDebug() << sf->keys();
Thanks Tobias for the trick.
Well I tested the application against the following styles:
It crashes only with WindowsXP and Cleanlooks styles
Good... Please report a bug against those styles then.