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Semi-support Qt6 for wxQt port.#24345

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dsa-t wants to merge 6 commits intowxWidgets:masterfrom
dsa-t:wxqt-qt6
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Semi-support Qt6 for wxQt port.#24345
dsa-t wants to merge 6 commits intowxWidgets:masterfrom
dsa-t:wxqt-qt6

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@dsa-t dsa-t commented Feb 21, 2024 •
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Gets wxQt with Qt6 building with CMake, and samples (widgets, cube, pyramid) running.

Sort of implements #24208.

glib-2.0 is needed to work around removal of QAbstractEventDispatcher::hasPendingEvents() in Qt6.

wxQtEventSignalHandler::HandleDestroyedSignal is removed due to assert when using Qt 6.6.2 linux desktop installed via aqt. When using distro's default 6.2.4+dfsg-2ubuntu1.1, it just hangs.
Scenario: in widgets sample, select last entry in "All controls", then hold Up arrow key.

Assert details

ASSERT failure in QTreeWidget: "Called object is not of the correct type (class destructor may have already run)", file .../qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h, line 129

libc.so.6!__pthread_kill_implementation(int no_tid, int signo, pthread_t threadid) (pthread_kill.c:44)
libc.so.6!__pthread_kill_internal(int signo, pthread_t threadid) (pthread_kill.c:78)
libc.so.6!__GI___pthread_kill(pthread_t threadid, int signo) (pthread_kill.c:89)
libc.so.6!__GI_raise(int sig) (raise.c:26)
libc.so.6!__GI_abort() (abort.c:79)
libQt6Core.so.6!qAbort() (Unknown Source:0)
libQt6Core.so.6![Unknown/Just-In-Time compiled code] (Unknown Source:0)
libQt6Core.so.6!QMessageLogger::fatal(char const*, ...) const (Unknown Source:0)
libQt6Core.so.6!qt_assert_x(char const*, char const*, char const*, int) (Unknown Source:0)
libwx_qtu_core-3.3.so.0!QtPrivate::assertObjectType<wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl> >(QObject * o) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:129)
libwx_qtu_core-3.3.so.0!QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)()>::call(void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)(), wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>*, void**)(void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)(wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl> * const) f, wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl> * o, void ** arg) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:144)
libwx_qtu_core-3.3.so.0!QtPrivate::FunctionPointer<void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)()>::call<QtPrivate::List<>, void>(void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)(), wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>*, void**)(QtPrivate::FunctionPointer<void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)()>::Function f, wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl> * o, void ** arg) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:182)
libwx_qtu_core-3.3.so.0!QtPrivate::QCallableObject<void (wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)(int which, QtPrivate::QSlotObjectBase * this_, QObject * r, void ** a, bool * ret) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:520)
libQt6Core.so.6![Unknown/Just-In-Time compiled code] (Unknown Source:0)
libQt6Core.so.6!QObject::destroyed(QObject*) (Unknown Source:0)
libQt6Widgets.so.6!QWidget::~QWidget() (Unknown Source:0)
libwx_qtu_core-3.3.so.0!wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl>::~wxQtEventSignalHandler(wxQtEventSignalHandler<QTreeWidget, wxTreeCtrl> * const this) (/home/alex/wx-debug/wxWidgets-qt/include/wx/qt/private/winevent.h:76)
libwx_qtu_core-3.3.so.0!wxQTreeWidget::~wxQTreeWidget(wxQTreeWidget * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/treectrl.cpp:128)
libwx_qtu_core-3.3.so.0!wxQTreeWidget::~wxQTreeWidget(wxQTreeWidget * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/treectrl.cpp:128)
libwx_qtu_core-3.3.so.0!wxWindow::~wxWindow(wxWindow * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/window.cpp:379)
libwx_qtu_core-3.3.so.0!wxControlBase::~wxControlBase(wxControlBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/ctrlcmn.cpp:47)
wxControl::~wxControl(wxControl * const this) (/home/alex/wx-debug/wxWidgets-qt/include/wx/qt/control.h:11)
libwx_qtu_core-3.3.so.0!wxSystemThemedControl<wxControl>::~wxSystemThemedControl(wxSystemThemedControl<wxControl> * const this) (/home/alex/wx-debug/wxWidgets-qt/include/wx/systhemectrl.h:64)
libwx_qtu_core-3.3.so.0!wxTreeCtrlBase::~wxTreeCtrlBase(wxTreeCtrlBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/treebase.cpp:176)
libwx_qtu_core-3.3.so.0!wxTreeCtrl::~wxTreeCtrl(wxTreeCtrl * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/treectrl.cpp:598)
libwx_qtu_core-3.3.so.0!wxTreeCtrl::~wxTreeCtrl(wxTreeCtrl * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/treectrl.cpp:598)
libwx_qtu_core-3.3.so.0!wxWindowBase::Destroy(wxWindowBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/wincmn.cpp:570)
libwx_qtu_core-3.3.so.0!wxWindowBase::DestroyChildren(wxWindowBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/wincmn.cpp:602)
libwx_qtu_core-3.3.so.0!wxWindow::~wxWindow(wxWindow * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/window.cpp:370)
libwx_qtu_core-3.3.so.0!wxControlBase::~wxControlBase(wxControlBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/ctrlcmn.cpp:47)
wxControl::~wxControl(wxControl * const this) (/home/alex/wx-debug/wxWidgets-qt/include/wx/qt/control.h:11)
libwx_qtu_core-3.3.so.0!wxGenericDirCtrl::~wxGenericDirCtrl(wxGenericDirCtrl * const this) (/home/alex/wx-debug/wxWidgets-qt/src/generic/dirctrlg.cpp:420)
libwx_qtu_core-3.3.so.0!wxGenericDirCtrl::~wxGenericDirCtrl(wxGenericDirCtrl * const this) (/home/alex/wx-debug/wxWidgets-qt/src/generic/dirctrlg.cpp:420)
DirCtrlWidgetsPage::CreateDirCtrl(DirCtrlWidgetsPage * const this, bool defaultPath) (/home/alex/wx-debug/wxWidgets-qt/samples/widgets/dirctrl.cpp:302)
DirCtrlWidgetsPage::Reset(DirCtrlWidgetsPage * const this) (/home/alex/wx-debug/wxWidgets-qt/samples/widgets/dirctrl.cpp:255)
DirCtrlWidgetsPage::CreateContent(DirCtrlWidgetsPage * const this) (/home/alex/wx-debug/wxWidgets-qt/samples/widgets/dirctrl.cpp:236)
WidgetsFrame::OnPageChanged(WidgetsFrame * const this, wxBookCtrlEvent & event) (/home/alex/wx-debug/wxWidgets-qt/samples/widgets/widgets.cpp:801)
libwx_baseu-3.3.so.0!wxAppConsoleBase::HandleEvent(const wxAppConsoleBase * const this, wxEvtHandler * handler, wxEventFunction func, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:642)
libwx_baseu-3.3.so.0!wxAppConsoleBase::CallEventHandler(const wxAppConsoleBase * const this, wxEvtHandler * handler, wxEventFunctor & functor, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:654)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEventIfMatchesId(const wxEventTableEntryBase & entry, wxEvtHandler * handler, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1444)
libwx_baseu-3.3.so.0!wxEvtHandler::SearchDynamicEventTable(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1904)
libwx_baseu-3.3.so.0!wxEvtHandler::TryHereOnly(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1627)
libwx_baseu-3.3.so.0!wxEvtHandler::TryBeforeAndHere(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/include/wx/event.h:3990)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEventLocally(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1564)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1537)
libwx_qtu_core-3.3.so.0!wxWindowBase::TryAfter(wxWindowBase * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/wincmn.cpp:3519)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1550)
libwx_qtu_core-3.3.so.0!wxWindowBase::TryAfter(wxWindowBase * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/wincmn.cpp:3519)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1550)
libwx_qtu_core-3.3.so.0!wxBookCtrlBase::DoSetSelection(wxBookCtrlBase * const this, size_t n, int flags) (/home/alex/wx-debug/wxWidgets-qt/src/common/bookctrl.cpp:538)
libwx_qtu_core-3.3.so.0!wxTreebook::SetSelection(wxTreebook * const this, size_t n) (/home/alex/wx-debug/wxWidgets-qt/include/wx/treebook.h:130)
libwx_qtu_core-3.3.so.0!wxTreebook::OnTreeSelectionChange(wxTreebook * const this, wxTreeEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/generic/treebkg.cpp:603)
libwx_baseu-3.3.so.0!wxAppConsoleBase::HandleEvent(const wxAppConsoleBase * const this, wxEvtHandler * handler, wxEventFunction func, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:642)
libwx_baseu-3.3.so.0!wxAppConsoleBase::CallEventHandler(const wxAppConsoleBase * const this, wxEvtHandler * handler, wxEventFunctor & functor, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:654)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEventIfMatchesId(const wxEventTableEntryBase & entry, wxEvtHandler * handler, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1444)
libwx_baseu-3.3.so.0!wxEventHashTable::HandleEvent(wxEventHashTable * const this, wxEvent & event, wxEvtHandler * self) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1049)
libwx_baseu-3.3.so.0!wxEvtHandler::TryHereOnly(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1631)
libwx_baseu-3.3.so.0!wxEvtHandler::TryBeforeAndHere(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/include/wx/event.h:3990)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEventLocally(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1564)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1537)
libwx_qtu_core-3.3.so.0!wxWindowBase::TryAfter(wxWindowBase * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/wincmn.cpp:3519)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1550)
libwx_baseu-3.3.so.0!wxEvtHandler::SafelyProcessEvent(wxEvtHandler * const this, wxEvent & event) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1653)
libwx_baseu-3.3.so.0!wxEvtHandler::ProcessPendingEvents(wxEvtHandler * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/event.cpp:1411)
libwx_baseu-3.3.so.0!wxAppConsoleBase::ProcessPendingEvents(wxAppConsoleBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:551)
libwx_qtu_core-3.3.so.0!wxQtIdleTimer::idle(wxQtIdleTimer * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/evtloop.cpp:74)
libwx_qtu_core-3.3.so.0!QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (wxQtIdleTimer::*)()>::call(void (wxQtIdleTimer::*)(), wxQtIdleTimer*, void**)(void (wxQtIdleTimer::*)(wxQtIdleTimer * const) f, wxQtIdleTimer * o, void ** arg) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:145)
libwx_qtu_core-3.3.so.0!QtPrivate::FunctionPointer<void (wxQtIdleTimer::*)()>::call<QtPrivate::List<>, void>(void (wxQtIdleTimer::*)(), wxQtIdleTimer*, void**)(QtPrivate::FunctionPointer<void (wxQtIdleTimer::*)()>::Function f, wxQtIdleTimer * o, void ** arg) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:182)
libwx_qtu_core-3.3.so.0!QtPrivate::QCallableObject<void (wxQtIdleTimer::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)(int which, QtPrivate::QSlotObjectBase * this_, QObject * r, void ** a, bool * ret) (/home/alex/qt/6.6.2/gcc_64/include/QtCore/qobjectdefs_impl.h:520)
libQt6Core.so.6![Unknown/Just-In-Time compiled code] (Unknown Source:0)
libQt6Core.so.6!QTimer::timeout(QTimer::QPrivateSignal) (Unknown Source:0)
libQt6Core.so.6!QObject::event(QEvent*) (Unknown Source:0)
libQt6Widgets.so.6!QApplicationPrivate::notify_helper(QObject*, QEvent*) (Unknown Source:0)
libQt6Core.so.6!QCoreApplication::notifyInternal2(QObject*, QEvent*) (Unknown Source:0)
libQt6Core.so.6!QTimerInfoList::activateTimers() (Unknown Source:0)
libQt6Core.so.6![Unknown/Just-In-Time compiled code] (Unknown Source:0)
libglib-2.0.so.0!g_main_context_dispatch (Unknown Source:0)
libglib-2.0.so.0![Unknown/Just-In-Time compiled code] (Unknown Source:0)
libglib-2.0.so.0!g_main_context_iteration (Unknown Source:0)
libQt6Core.so.6!QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (Unknown Source:0)
libQt6Core.so.6!QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (Unknown Source:0)
libwx_qtu_core-3.3.so.0!wxQtEventLoopBase::DoRun(wxQtEventLoopBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/qt/evtloop.cpp:122)
libwx_baseu-3.3.so.0!wxEventLoopBase::Run(wxEventLoopBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/evtloopcmn.cpp:87)
libwx_baseu-3.3.so.0!wxAppConsoleBase::MainLoop(wxAppConsoleBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:362)
libwx_baseu-3.3.so.0!wxAppConsoleBase::OnRun(wxAppConsoleBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/appbase.cpp:280)
libwx_qtu_core-3.3.so.0!wxAppBase::OnRun(wxAppBase * const this) (/home/alex/wx-debug/wxWidgets-qt/src/common/appcmn.cpp:349)
libwx_baseu-3.3.so.0!wxEntry(int & argc, wxChar ** argv) (/home/alex/wx-debug/wxWidgets-qt/src/common/init.cpp:570)
libwx_baseu-3.3.so.0!wxEntry(int & argc, char ** argv) (/home/alex/wx-debug/wxWidgets-qt/src/common/init.cpp:581)
main(int argc, char ** argv) (/home/alex/wx-debug/wxWidgets-qt/samples/widgets/widgets.cpp:327)

MaartenBent
MaartenBent reviewed Feb 21, 2024
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Nice addition.
AppVeyor is still set to Qt 5.11 so requiring 5.15 causes problems there.

@dsa-t dsa-t mentioned this pull request May 29, 2024
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vadz pushed a commit that referenced this pull request Jun 15, 2024
@dsa-t @vadz
wxQt: switch to QOpenGLWidget for wxGLCanvas
6dcacd8 
QGLWidget is deprecated (and removed in Qt 6) and doesn't work under
KDE6 with Wayland.

See #24345.

Closes #24208.

Closes #24577.
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vadz commented May 10, 2025

@AliKet Is there anything still worth keeping here or should this one be closed?

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AliKet commented May 10, 2025

Can safely be closed as everything here is in master now, thanks.

@vadz vadz closed this May 10, 2025
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@dsa-t @vadz @AliKet @MaartenBent