#0  QStandardItemPrivate::setModel (this=this@entry=0x7fffe8003660, mod=0x71a0a0) at itemmodels/qstandarditemmodel.cpp:386
#1  0x00007ffff71de269 in QStandardItemPrivate::setParentAndModel (mod=<optimized out>, par=0x792900, this=<optimized out>) at ../../include/QtGui/5.12.0/QtGui/private/../../../../../src/gui/itemmodels/qstandarditemmodel_p.h:178
#2  QStandardItemPrivate::setChild (this=0x792920, row=0, column=0, item=<optimized out>, emitChanged=emitChanged@entry=true) at itemmodels/qstandarditemmodel.cpp:134
#3  0x00007ffff71de6bc in QStandardItemModel::setItem (this=<optimized out>, row=<optimized out>, column=<optimized out>, item=<optimized out>) at itemmodels/qstandarditemmodel.cpp:2371
#4  0x0000000000404618 in YMainWnd::onTest (this=0x7fffffffdac0) at mainwnd.cpp:65
#5  0x000000000040644f in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (YMainWnd::*)()>::call(void (YMainWnd::*)(), YMainWnd*, void**) (f=(void (YMainWnd::*)(YMainWnd * const)) 0x40436c <YMainWnd::onTest()>, o=0x7fffffffdac0, arg=0x7fffffffcad0) at /opt/qtsdk_5.12.0/include/QtCore/qobjectdefs_impl.h:152
#6  0x00000000004062e0 in QtPrivate::FunctionPointer<void (YMainWnd::*)()>::call<QtPrivate::List<>, void>(void (YMainWnd::*)(), YMainWnd*, void**) (f=(void (YMainWnd::*)(YMainWnd * const)) 0x40436c <YMainWnd::onTest()>, o=0x7fffffffdac0, arg=0x7fffffffcad0) at /opt/qtsdk_5.12.0/include/QtCore/qobjectdefs_impl.h:185
#7  0x00000000004061aa in QtPrivate::QSlotObject<void (YMainWnd::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x77ea90, r=0x7fffffffdac0, a=0x7fffffffcad0, ret=0x0) at /opt/qtsdk_5.12.0/include/QtCore/qobjectdefs_impl.h:414
#8  0x00007ffff686f5c5 in QtPrivate::QSlotObjectBase::call (a=<optimized out>, r=0x7fffffffdac0, this=0x77ea90) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#9  QMetaObject::activate (sender=sender@entry=0x63ea70, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffcad0) at kernel/qobject.cpp:3759
#10 0x00007ffff686fa57 in QMetaObject::activate (sender=sender@entry=0x63ea70, m=m@entry=0x7ffff7da7700 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffcad0) at kernel/qobject.cpp:3631
#11 0x00007ffff766df3e in QAction::triggered (this=this@entry=0x63ea70, _t1=<optimized out>) at .moc/moc_qaction.cpp:380
#12 0x00007ffff7670d73 in QAction::activate (this=0x63ea70, event=event@entry=QAction::Trigger) at kernel/qaction.cpp:1166
#13 0x00007ffff787753f in QAction::trigger (this=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qaction.h:187
#14 QToolButton::nextCheckState (this=<optimized out>) at widgets/qtoolbutton.cpp:969
#15 0x00007ffff7778b3e in QAbstractButtonPrivate::click (this=this@entry=0x67cf70) at widgets/qabstractbutton.cpp:397
#16 0x00007ffff7778e5f in QAbstractButton::mouseReleaseEvent (this=0x836ca0, e=0x7fffffffd0e0) at widgets/qabstractbutton.cpp:1011
#17 0x00007ffff78774ec in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:622
#18 0x00007ffff76bb820 in QWidget::event (this=0x836ca0, event=0x7fffffffd0e0) at kernel/qwidget.cpp:8888
#19 0x00007ffff7779fb5 in QAbstractButton::event (this=this@entry=0x836ca0, e=e@entry=0x7fffffffd0e0) at widgets/qabstractbutton.cpp:968
#20 0x00007ffff78775ca in QToolButton::event (this=0x836ca0, event=0x7fffffffd0e0) at widgets/qtoolbutton.cpp:985
#21 0x00007ffff7675d3d in QApplicationPrivate::notify_helper (this=this@entry=0x6231d0, receiver=receiver@entry=0x836ca0, e=0x7fffffffd0e0) at kernel/qapplication.cpp:3752
#22 0x00007ffff767d189 in QApplication::notify (this=<optimized out>, receiver=0x836ca0, e=0x7fffffffd0e0) at kernel/qapplication.cpp:3213
#23 0x00007ffff683e934 in QCoreApplication::notifyInternal2 (receiver=0x836ca0, event=0x7fffffffd0e0) at kernel/qcoreapplication.cpp:1061
#24 0x00007ffff683eb7a in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x836ca0, event=event@entry=0x7fffffffd0e0) at kernel/qcoreapplication.cpp:1463
#25 0x00007ffff767c50b in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x836ca0, event=event@entry=0x7fffffffd0e0, alienWidget=alienWidget@entry=0x836ca0, nativeWidget=0x7fffffffdac0, buttonDown=buttonDown@entry=0x7ffff7dd6940 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2699
#26 0x00007ffff76d83fb in QWidgetWindow::handleMouseEvent (this=this@entry=0x77eac0, event=event@entry=0x7fffffffd6d0) at kernel/qwidgetwindow.cpp:661
#27 0x00007ffff76da6d5 in QWidgetWindow::event (this=0x77eac0, event=0x7fffffffd6d0) at kernel/qwidgetwindow.cpp:281
#28 0x00007ffff7675d3d in QApplicationPrivate::notify_helper (this=this@entry=0x6231d0, receiver=receiver@entry=0x77eac0, e=e@entry=0x7fffffffd6d0) at kernel/qapplication.cpp:3752
#29 0x00007ffff767cee6 in QApplication::notify (this=0x7fffffffdb30, receiver=0x77eac0, e=0x7fffffffd6d0) at kernel/qapplication.cpp:3109
#30 0x00007ffff683e934 in QCoreApplication::notifyInternal2 (receiver=0x77eac0, event=0x7fffffffd6d0) at kernel/qcoreapplication.cpp:1061
#31 0x00007ffff683eb7a in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x77eac0, event=event@entry=0x7fffffffd6d0) at kernel/qcoreapplication.cpp:1463
#32 0x00007ffff6e93d20 in QGuiApplicationPrivate::processMouseEvent (e=0x779c90) at kernel/qguiapplication.cpp:2102
#33 0x00007ffff6e95196 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x779c90) at kernel/qguiapplication.cpp:1837
#34 0x00007ffff6e6f3b9 in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1068
#35 0x00007ffff0719d0a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#36 0x00007ffff3c30017 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#37 0x00007ffff3c30250 in ?? () from /usr/lib64/libglib-2.0.so.0
#38 0x00007ffff3c302dc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#39 0x00007ffff689b846 in QEventDispatcherGlib::processEvents (this=0x62b420, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#40 0x00007ffff071a050 in QXcbGlibEventDispatcher::processEvents (this=<optimized out>, flags=...) at qxcbeventdispatcher.cpp:143
#41 0x00007ffff683ca55 in QEventLoop::processEvents (this=this@entry=0x7fffffffda60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:138
#42 0x00007ffff683ce6a in QEventLoop::exec (this=this@entry=0x7fffffffda60, flags=flags@entry=...) at kernel/qeventloop.cpp:225
#43 0x00007ffff6846792 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1364
#44 0x00007ffff6e8ac4e in QGuiApplication::exec () at kernel/qguiapplication.cpp:1779
#45 0x00007ffff7675c1d in QApplication::exec () at kernel/qapplication.cpp:2909
#46 0x0000000000403c8d in main (iArgc=1, iArgv=0x7fffffffdc48) at app.cpp:18