Re: QtHandles: Qt-based toolkit with uicontrol/uipanel support

[Kai Habel]

On 09.10.2011 21:47, Michael Goffioul wrote:
> On Sun, Oct 9, 2011 at 8:43 PM, John W. Eaton<address@hidden>  wrote:
> > I see the following when I try to build on Debian testing, amd64, with
> > Qt 4.7 libraries:
> My god, everybody is using 64bits... ;)
>
> Ok, John, Martin and Kai, you're all suffering from the same problem. See
> my answer to Kai. There's some preprocessor statement in Backend.cpp
> that apparently does not work as expected.
>
> Michael.
Michael,

I had the time to compile QtHandles today. Unfortunately it crashes for 
me when I try to open a qt-based figure. I have updated octave and 
QtHandles to their most recent version.

Kai


octave-qt:1> graphics_toolkit qt
Missing separate debuginfo for /usr/lib64/libQtOpenGL.so.4
Try: zypper install -C 
"debuginfo(build-id)=3fbbbe1b08637395bf3b12506f29951f045fc7de"
octave-qt:2> figure
Backend::initialize figure from thread e67b9700
ObjectFactory::createObject: create figure from thread f7fb4800
20 0
Backend::update figure(2031) from thread f7fb4800
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700
Backend::initialize uimenu from thread e67b9700

...

ObjectFactory::createObject: create uimenu from thread f7fb4800

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff43be5bb in std::basic_string<char, std::char_traits<char>, 
std::allocator<char> >::basic_string(std::basic_string<char, 
std::char_traits<char>, std::allocator<char> > const&) () from 
/usr/lib64/libstdc++.so.6
(gdb) bt
#0  0x00007ffff43be5bb in std::basic_string<char, 
std::char_traits<char>, std::allocator<char> 
>::basic_string(std::basic_string<char, std::char_traits<char>, 
std::allocator<char> > const&) () from /usr/lib64/libstdc++.so.6
#1  0x00007fffe3388378 in string_value (this=0xf544f0, go=<value 
optimized out>, action=0xc390f0, parent=0x7fffdc002ef0)
    at /usr/local/include/octave-3.5.0+/octave/../octave/graphics.h:495
#2  get_label (this=0xf544f0, go=<value optimized out>, action=0xc390f0, 
parent=0x7fffdc002ef0)
    at /usr/local/include/octave-3.5.0+/octave/../octave/graphics.h:10297
#3  QtHandles::Menu::Menu (this=0xf544f0, go=<value optimized out>, 
action=0xc390f0, parent=0x7fffdc002ef0) at Menu.cpp:59
#4  0x00007fffe33886d7 in QtHandles::Menu::create (go=...) at Menu.cpp:46
#5  0x00007fffe338aaaa in QtHandles::ObjectFactory::createObject 
(this=<value optimized out>, handle=-1.6126398324907572)
    at ObjectFactory.cpp:120
#6  0x00007fffe339a361 in QtHandles::ObjectFactory::qt_metacall 
(this=0x7fffe35acfe0, _c=QMetaObject::InvokeMetaMethod,
    _id=<value optimized out>, _a=0x7fffdc0535b0) at 
moc_ObjectFactory.cpp:73
#7  0x00007ffff49ba37a in QObject::event(QEvent*) () from 
/usr/lib64/libQtCore.so.4
#8  0x00007ffff4ea5144 in QApplicationPrivate::notify_helper(QObject*, 
QEvent*) () from /usr/lib64/libQtGui.so.4
#9  0x00007ffff4ead6fa in QApplication::notify(QObject*, QEvent*) () 
from /usr/lib64/libQtGui.so.4
#10 0x00007ffff49a647c in QCoreApplication::notifyInternal(QObject*, 
QEvent*) () from /usr/lib64/libQtCore.so.4
#11 0x00007ffff49a9c75 in 
QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) ()
   from /usr/lib64/libQtCore.so.4
#12 0x00007ffff49d1093 in ?? () from /usr/lib64/libQtCore.so.4
#13 0x00007fffef8a9bd3 in g_main_context_dispatch () from 
/lib64/libglib-2.0.so.0
#14 0x00007fffef8aa3b0 in ?? () from /lib64/libglib-2.0.so.0
#15 0x00007fffef8aa650 in g_main_context_iteration () from 
/lib64/libglib-2.0.so.0
#16 0x00007ffff49d122f in 
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) 
()
   from /usr/lib64/libQtCore.so.4
#17 0x00007ffff4f4abae in ?? () from /usr/lib64/libQtGui.so.4
#18 0x00007ffff49a58d2 in 
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from 
/usr/lib64/libQtCore.so.4
#19 0x00007ffff49a5ae5 in 
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from 
/usr/lib64/libQtCore.so.4
#20 0x00007ffff49a9f2b in QCoreApplication::exec() () from 
/usr/lib64/libQtCore.so.4
#21 0x0000000000401131 in main (argc=1, argv=0x7fffffffdd78) at 
octave-qt.cpp:62
(gdb)