Details
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Bug
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Resolution: Done
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P2: Important
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5.10
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None
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Windows 10
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3f1229bb7bfd45fdc09ce8c2a16cc59e322d5d1c
Description
I have a ListView with ItemDelegates whose model is set to a custom model. A ButtonGroup monitors the ListView's delegates. When removing items from the model using beginRemoveRows()/endRemoveRows(), I get a crash:
1 QQuickAbstractButton::setChecked qquickabstractbutton.cpp 554 0x7fffa4501711 2 QQuickButtonGroup::setCheckedButton qquickbuttongroup.cpp 277 0x7fffa451f2bb 3 QQuickButtonGroupPrivate::_q_updateCurrent qquickbuttongroup.cpp 205 0x7fffa451ffb9 4 QQuickButtonGroup::qt_static_metacall moc_qquickbuttongroup_p.cpp 140 0x7fffa451ef1d 5 QMetaCallEvent::placeMetaCall qobject.cpp 504 0x72123c51 6 QObject::event qobject.cpp 1246 0x7211c6ff 7 QCoreApplicationPrivate::notify_helper qcoreapplication.cpp 1171 0x720c5a7e 8 doNotify qcoreapplication.cpp 1111 0x720c71e8 9 QCoreApplication::notify qcoreapplication.cpp 1098 0x720c3221 10 QGuiApplication::notify qguiapplication.cpp 1696 0x7fff980bacc9 11 QCoreApplication::notifyInternal2 qcoreapplication.cpp 1021 0x720c4b46 12 QCoreApplication::sendEvent qcoreapplication.h 234 0x720cfba2 13 QCoreApplicationPrivate::sendPostedEvents qcoreapplication.cpp 1696 0x720c645d 14 QEventDispatcherWin32::sendPostedEvents qeventdispatcher_win.cpp 1079 0x7218201a 15 QWindowsGuiEventDispatcher::sendPostedEvents qwindowsguieventdispatcher.cpp 82 0x7fffa4936574 16 qt_internal_proc qeventdispatcher_win.cpp 239 0x7217fe1b 17 CallWindowProcW USER32 0x7fffd370bc50 18 DispatchMessageW USER32 0x7fffd370b5cf 19 QEventDispatcherWin32::processEvents qeventdispatcher_win.cpp 630 0x7218078d 20 QWindowsGuiEventDispatcher::processEvents qwindowsguieventdispatcher.cpp 74 0x7fffa4936534 21 QCoreApplication::processEvents qcoreapplication.cpp 1254 0x720c28d6 22 QTest::qWait qtestsystem.h 65 0x7ff6629629ff 23 tst_App::openClose tst_app.cpp 57 0x7ff6629634a4 24 tst_App::qt_static_metacall tst_app.moc 75 0x7ff662963263 25 QMetaMethod::invoke qmetaobject.cpp 2306 0x720d4121 26 QMetaMethod::invoke qmetaobject.h 124 0x71cbacb9 27 QTest::TestMethods::invokeTestOnData qtestcase.cpp 895 0x7fffb0c3a0ea 28 QTest::TestMethods::invokeTest qtestcase.cpp 1077 0x7fffb0c39929 29 QTest::TestMethods::invokeTests qtestcase.cpp 1393 0x7fffb0c39211 30 QTest::qRun qtestcase.cpp 1833 0x7fffb0c358e6 31 QTest::qExec qtestcase.cpp 1720 0x7fffb0c359ea 32 main tst_app.cpp 62 0x7ff6629634ff 33 invoke_main exe_common.inl 65 0x7ff66296a7c4 34 __scrt_common_main_seh exe_common.inl 253 0x7ff66296a687 35 __scrt_common_main exe_common.inl 296 0x7ff66296a54e 36 mainCRTStartup exe_main.cpp 17 0x7ff66296a7e9 37 BaseThreadInitThunk KERNEL32 0x7fffd3872774 38 RtlUserThreadStart ntdll 0x7fffd4ef0d51
Snippets (minimal reproducible project attached):
layermodel.cpp
// ... #define CRASH void LayerModel::clearLayers() { #ifdef CRASH while (!mLayers.isEmpty()) { beginRemoveRows(QModelIndex(), 0, 0); mLayers.takeAt(0); endRemoveRows(); } #else beginResetModel(); mLayers.clear(); endResetModel(); #endif } // ...
main.qml
// ...
ButtonGroup {
objectName: "layerPanelButtonGroup"
buttons: listView.contentItem.children
}
ListView {
id: listView
objectName: "layerListView"
anchors.fill: parent
boundsBehavior: ListView.StopAtBounds
clip: true
model: LayerModel {
id: layerModel
}
// Works:
// model: 3
delegate: ItemDelegate {
objectName: "itemDelegate" + index
checkable: true
checked: index == 0
}
}
// ...
Attachments
Issue Links
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- Closed
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