bug.zip (2.9 MB)
Hello,
I’ve uploaded a video that shows how Tiled crashes when I place a UI under another floating one. Didn’t have time to check the forum to see if this is already reported, but here it is anyways.
Cheers
Hmm, the good news is that I could reproduce this crash also on Linux. However, the crash is entirely happening inside of the Qt framework:
1 QWeakPointer<QObject>::internalData qsharedpointer_impl.h 752 0x7ffff6335b99
2 QPointer<QMainWindowLayout>::data qpointer.h 75 0x7ffff6335b99
3 QMainWindowPrivate::mainWindowLayout qmainwindow.cpp 63 0x7ffff6335b99
4 qt_mainwindow_layout qmainwindow.cpp 69 0x7ffff6335b99
5 QDockWidgetGroupLayout::toolBarAreaLayout qmainwindowlayout.cpp 281 0x7ffff634ac36
6 QMainWindowLayoutSeparatorHelper<QDockWidgetGroupLayout>::findSeparator qmainwindowlayout_p.h 291 0x7ffff634ac36
7 QMainWindowLayoutSeparatorHelper<QDockWidgetGroupLayout>::adjustCursor qmainwindowlayout_p.h 149 0x7ffff634ae43
8 QMainWindowLayoutSeparatorHelper<QDockWidgetGroupLayout>::windowEvent qmainwindowlayout_p.h 224 0x7ffff634b44d
9 QDockWidgetGroupWindow::event qmainwindowlayout.cpp 308 0x7ffff6348527
10 QApplicationPrivate::notify_helper qapplication.cpp 3296 0x7ffff61903f6
11 QApplication::notify qapplication.cpp 2774 0x7ffff6199028
12 QCoreApplication::notifyInternal2 qcoreapplication.cpp 1168 0x7ffff4d7bcaa
13 QCoreApplication::sendSpontaneousEvent qcoreapplication.cpp 1626 0x7ffff4d7becd
14 QApplicationPrivate::sendMouseEvent qapplication.cpp 2355 0x7ffff619836d
15 QWidgetWindow::handleMouseEvent qwidgetwindow.cpp 667 0x7ffff62037b7
16 QWidgetWindow::event qwidgetwindow.cpp 299 0x7ffff6206473
17 QApplicationPrivate::notify_helper qapplication.cpp 3296 0x7ffff61903f6
18 QCoreApplication::notifyInternal2 qcoreapplication.cpp 1168 0x7ffff4d7bcaa
19 QCoreApplication::sendSpontaneousEvent qcoreapplication.cpp 1626 0x7ffff4d7becd
20 QGuiApplicationPrivate::processMouseEvent qguiapplication.cpp 2461 0x7ffff55e58b8
21 QWindowSystemInterface::sendWindowSystemEvents qwindowsysteminterface.cpp 1114 0x7ffff5648aac
22 xcbSourceDispatch qxcbeventdispatcher.cpp 57 0x7ffff14acb9e
23 g_main_context_dispatch_unlocked.lto_priv 0x7ffff44fd28c
24 g_main_context_iterate_unlocked.isra 0x7ffff455d7b8
25 g_main_context_iteration 0x7ffff44fe783
26 QEventDispatcherGlib::processEvents qeventdispatcher_glib.cpp 399 0x7ffff505591e
27 QEventLoop::exec qflags.h 34 0x7ffff4d88fe2
28 QCoreApplication::exec qflags.h 74 0x7ffff4d85166
29 main main.cpp 633 0x21c045
It actually appears to crash upon hovering the separator between the views, due to trying to use the QDockWidgetGroupWindow instance as a QMainWindow, which it isn’t, but it was casted to one in QDockWidgetGroupLayout::toolBarAreaLayout in code introduced in Avoid dock widget separators stealing mouse events from expanded toolbar · qt/qtbase@3d99f90 · GitHub, so it appears to be a regression in Qt 6.8.1.
Fortunately, I found this issue was already reported as QTBUG-132952 and is already fixed for an upcoming Qt release. Until we have a Tiled build against a fixed Qt I would suggest to avoid this kind of layout.
1 Like
Good to know, thx.