Details
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Bug
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Resolution: Fixed
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P2: Important
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5.10.1, 5.12.3, 5.15.1
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None
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Ubuntu 18.04 amd64
Windows 10 x64
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Linux/X11,
Windows
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2
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e71430cd2b82cda52a2886c941b227eb6cdbcb7a
Description
An attempt to zoom out a chart with a logarithmic axis too many times leads to crash. Namely, if you maximize the window of the following program on a FullHD screen, and then right-click the chart 9 or 10 times to zoom out, you'll get a segfault due to stack overflow on the final click.
#include <QtCharts> #include <QApplication> int main(int argc, char** argv) { QApplication a(argc,argv); QChartView view; view.setRubberBand(QChartView::RectangleRubberBand); const auto series=new QLineSeries; for(int i=1;i<100;++i) series->append(i,i); view.chart()->addSeries(series); const auto axisY=new QLogValueAxis; axisY->setBase(10); view.chart()->addAxis(axisY, Qt::AlignLeft); series->attachAxis(axisY); view.show(); return a.exec(); }
The backtrace looks like follows:
#0 0x00007ffff72d645f in QString::reallocData(unsigned int, bool) () at /opt/qt512/lib/libQt5Core.so.5 #1 0x00007ffff645f978 in QTextBlock::text() const () at /opt/qt512/lib/libQt5Gui.so.5 #2 0x00007ffff643634c in QTextEngine::validate() const () at /opt/qt512/lib/libQt5Gui.so.5 #3 0x00007ffff643d461 in QTextEngine::itemize() const () at /opt/qt512/lib/libQt5Gui.so.5 #4 0x00007ffff644773c in QTextLayout::beginLayout() () at /opt/qt512/lib/libQt5Gui.so.5 #5 0x00007ffff649307d in () at /opt/qt512/lib/libQt5Gui.so.5 #6 0x00007ffff6494594 in () at /opt/qt512/lib/libQt5Gui.so.5 #7 0x00007ffff649a402 in () at /opt/qt512/lib/libQt5Gui.so.5 #8 0x00007ffff649aa09 in () at /opt/qt512/lib/libQt5Gui.so.5 #9 0x00007ffff649ac78 in QTextDocumentLayout::doLayout(int, int, int) () at /opt/qt512/lib/libQt5Gui.so.5 #10 0x00007ffff649bbd3 in QTextDocumentLayout::documentChanged(int, int, int) () at /opt/qt512/lib/libQt5Gui.so.5 #11 0x00007ffff6479400 in QTextDocumentPrivate::clear() () at /opt/qt512/lib/libQt5Gui.so.5 #12 0x00007ffff6467aea in QTextDocument::setHtml(QString const&) () at /opt/qt512/lib/libQt5Gui.so.5 #13 0x00007ffff7a9fa80 in () at /opt/qt512/lib/libQt5Widgets.so.5 #14 0x00007ffff7eda497 in QtCharts::ChartPresenter::textBoundingRect(QFont const&, QString const&, double) () at /opt/qt512/lib/libQt5Charts.so.5 #15 0x00007ffff7f190d3 in QtCharts::ChartLogValueAxisY::sizeHint(Qt::SizeHint, QSizeF const&) const () at /opt/qt512/lib/libQt5Charts.so.5 #16 0x00007ffff7bbe173 in () at /opt/qt512/lib/libQt5Widgets.so.5 #17 0x00007ffff7bbe940 in QGraphicsLayoutItem::effectiveSizeHint(Qt::SizeHint, QSizeF const&) const () at /opt/qt512/lib/libQt5Widgets.so.5 #18 0x00007ffff7f7b620 in QtCharts::CartesianChartLayout::calculateAxisGeometry(QRectF const&, QList<QtCharts::ChartAxisElement*> const&, bool) const () at /opt/qt512/lib/libQt5Charts.so.5 #19 0x00007ffff7f7af13 in QtCharts::AbstractChartLayout::setGeometry(QRectF const&) () at /opt/qt512/lib/libQt5Charts.so.5 #20 0x00007ffff7efd777 in QtCharts::ChartAxisElement::handleRangeChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #21 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #22 0x00007ffff7f0288d in QtCharts::QAbstractAxisPrivate::rangeChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #23 0x00007ffff7f19d03 in QtCharts::QLogValueAxisPrivate::setRange(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #24 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #25 0x00007ffff7f26a00 in QtCharts::AbstractDomain::rangeVerticalChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #26 0x00007ffff7f29f5a in QtCharts::XLogYDomain::setRange(double, double, double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #27 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #28 0x00007ffff7f0288d in QtCharts::QAbstractAxisPrivate::rangeChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #29 0x00007ffff7f19d03 in QtCharts::QLogValueAxisPrivate::setRange(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #30 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #31 0x00007ffff7f26a00 in QtCharts::AbstractDomain::rangeVerticalChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #32 0x00007ffff7f29f5a in QtCharts::XLogYDomain::setRange(double, double, double, double) () at /opt/qt512/lib/libQt5Charts.so.5 ... (lots of repetitions of the six calls) ... #66685 0x00007ffff7f26a00 in QtCharts::AbstractDomain::rangeVerticalChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #66686 0x00007ffff7f29f5a in QtCharts::XLogYDomain::setRange(double, double, double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #66687 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #66688 0x00007ffff7f0288d in QtCharts::QAbstractAxisPrivate::rangeChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #66689 0x00007ffff7f19d03 in QtCharts::QLogValueAxisPrivate::setRange(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #66690 0x00007ffff7466a45 in QMetaObject::activate(QObject*, int, int, void**) () at /opt/qt512/lib/libQt5Core.so.5 #66691 0x00007ffff7f26a00 in QtCharts::AbstractDomain::rangeVerticalChanged(double, double) () at /opt/qt512/lib/libQt5Charts.so.5 #66692 0x00007ffff7ed49da in QtCharts::ChartDataSet::zoomOutDomain(QRectF const&) () at /opt/qt512/lib/libQt5Charts.so.5 #66693 0x00007ffff7ee1995 in QtCharts::QChartPrivate::zoomOut(double) () at /opt/qt512/lib/libQt5Charts.so.5 #66694 0x00007ffff7ee3448 in QtCharts::QChartView::mouseReleaseEvent(QMouseEvent*) () at /opt/qt512/lib/libQt5Charts.so.5 #66695 0x00007ffff7904fd8 in QWidget::event(QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66696 0x00007ffff79a7c9e in QFrame::event(QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66697 0x00007ffff7bfc6b3 in QGraphicsView::viewportEvent(QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66698 0x00007ffff7436c5d in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Core.so.5 #66699 0x00007ffff78c4c35 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66700 0x00007ffff78cd058 in QApplication::notify(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66701 0x00007ffff7436ed8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Core.so.5 #66702 0x00007ffff78cb65f in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /opt/qt512/lib/libQt5Widgets.so.5 #66703 0x00007ffff791fec1 in () at /opt/qt512/lib/libQt5Widgets.so.5 #66704 0x00007ffff7922b5a in () at /opt/qt512/lib/libQt5Widgets.so.5 #66705 0x00007ffff78c4c5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66706 0x00007ffff78cc190 in QApplication::notify(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Widgets.so.5 #66707 0x00007ffff7436ed8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /opt/qt512/lib/libQt5Core.so.5 #66708 0x00007ffff634a8fb in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /opt/qt512/lib/libQt5Gui.so.5 #66709 0x00007ffff634ba65 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /opt/qt512/lib/libQt5Gui.so.5 #66710 0x00007ffff63242bb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /opt/qt512/lib/libQt5Gui.so.5 #66711 0x00007ffff03ada6a in () at /opt/qt512/plugins/platforms/../../lib/libQt5XcbQpa.so.5 #66712 0x00007ffff4d3b387 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #66713 0x00007ffff4d3b5c0 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #66714 0x00007ffff4d3b64c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #66715 0x00007ffff7493f7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /opt/qt512/lib/libQt5Core.so.5 #66716 0x00007ffff74351fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /opt/qt512/lib/libQt5Core.so.5 #66717 0x00007ffff743e330 in QCoreApplication::exec() () at /opt/qt512/lib/libQt5Core.so.5 #66718 0x00005555555551a3 in main(int, char**) (argc=1, argv=0x7fffffffdcf8) at test.cpp:24