Details
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Bug
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Resolution: Done
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Not Evaluated
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5.0.1
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None
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Mac
Description
Hi
I'm trying to create a Qt app with QGLWidget and some other UI controls.
It crashes after short time after start.
Below are steps to reproduce the problem.
Qt 5.0.1 on Mac.
1. Open QTCreator. Create new project based on QMainWindow class.
2. Add opengl to .pro file:
QT += core gui opengl
3. Create simple GLWidget class inherited from QGLWidget (it does nothing)
#pragma once #include <QGLWidget> class GLWidget : public QGLWidget { Q_OBJECT public: GLWidget() {}; };
4. Do some stuff in Designer:
- Place three vertical layouts on main window.
- Organize them in vertical splitter.
- Set CentralWidget layout to horizontal.
- Place in MainWindow constructor at mainwindow.cpp code which adds GLWidget to the window:
ui->verticalLayout_2->addWidget(new GLWidget);
5. Run. OK!
6. Drop QTreeView widget to the left layout in designer.
7. Run again... CRASH!
0 __pthread_kill 0x7fff83e5d212
1 pthread_kill 0x7fff8b77caf4
2 abort 0x7fff8b7c0dce
3 qt_message_fatal qlogging.cpp 868 0x101711a88
4 QMessageLogger::fatal qlogging.cpp 356 0x1017122ae
5 qt_assert_x qglobal.cpp 1959 0x10170ba5a
6 QWidget::mapTo qwidget.cpp 3866 0x10019dfb8
7 QFocusFramePrivate::updateSize qfocusframe.cpp 95 0x1003b5785
8 QFocusFrame::eventFilter qfocusframe.cpp 282 0x1003b6173
9 QCoreApplicationPrivate::sendThroughObjectEventFilters qcoreapplication.cpp 863 0x10198103c
10 QApplicationPrivate::notify_helper qapplication.cpp 3390 0x10015affb
11 QApplication::notify qapplication.cpp 3359 0x10015fb49
12 QCoreApplication::notifyInternal qcoreapplication.cpp 767 0x101980baf
13 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 206 0x10016329f
14 QWidgetWindow::handleResizeEvent qwidgetwindow.cpp 448 0x1001e1ef5
15 QWidgetWindow::event qwidgetwindow.cpp 160 0x1001e0e18
16 QApplicationPrivate::notify_helper qapplication.cpp 3394 0x10015b025
17 QApplication::notify qapplication.cpp 2825 0x10015cb3f
18 QCoreApplication::notifyInternal qcoreapplication.cpp 767 0x101980baf
19 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 206 0x100dfc6ff
20 QGuiApplicationPrivate::processExposeEvent qguiapplication.cpp 2169 0x100df8870
... <More>
This is assert in QWidget::mapTo function:
QPoint QWidget::mapTo(const QWidget * parent, const QPoint & pos) const { QPoint p = pos; if (parent) { const QWidget * w = this; while (w != parent) { Q_ASSERT_X(w, "QWidget::mapTo(const QWidget *parent, const QPoint &pos)", "parent must be in parent hierarchy"); p = w->mapToParent(p); w = w->parentWidget(); } } return p; }