[okular] [Bug 378696] Selecting annotation and reloading file crashes Okular

[Oliver Sander]

https://bugs.kde.org/show_bug.cgi?id=378696

--- Comment #1 from Oliver Sander <oliver.sander at tu-dresden.de> ---
valgrind trace seems useful:

==24464== Invalid read of size 4
==24464==    at 0x1F11765C: QRect::height() const (qrect.h:261)
==24464==    by 0x1F19EC2B: PageViewItem::uncroppedHeight() const
(pageviewutils.cpp:97)
==24464==    by 0x1F170676: MouseAnnotation::routePaint(QPainter*, QRect
const&) (pageviewmouseannotation.cpp:275)
==24464==    by 0x1F17D02D: PageView::paintEvent(QPaintEvent*)
(pageview.cpp:1757)
==24464==    by 0x7FAB277: QWidget::event(QEvent*) (in
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==    by 0x8093A0D: QFrame::event(QEvent*) (in
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==    by 0x1F185D31: PageView::viewportEvent(QEvent*)
(pageview.cpp:3318)
==24464==    by 0x8CB0740:
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (in
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.7.1)
==24464==    by 0x7F63B64: QApplicationPrivate::notify_helper(QObject*,
QEvent*) (in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==    by 0x7F6B340: QApplication::notify(QObject*, QEvent*) (in
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==    by 0x8CB09DF: QCoreApplication::notifyInternal2(QObject*, QEvent*)
(in /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.7.1)
==24464==    by 0x7FA3FD9: QWidgetPrivate::sendPaintEvent(QRegion const&) (in
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==  Address 0x1d06ebd0 is 48 bytes inside a block of size 104 free'd
==24464==    at 0x4C2D2DB: operator delete(void*) (vg_replace_malloc.c:576)
==24464==    by 0x1F17967F: PageView::notifySetup(QVector<Okular::Page*>
const&, int) (pageview.cpp:962)
==24464==    by 0x1F4ED719: Okular::Document::closeDocument()
(document.cpp:2614)
==24464==    by 0x1F0FDE99: Okular::Part::closeUrl(bool) (part.cpp:1660)
==24464==    by 0x1F0FDFFB: Okular::Part::closeUrl() (part.cpp:1681)
==24464==    by 0x1F0FE811: Okular::Part::slotDoFileDirty() (part.cpp:1805)
==24464==    by 0x1F103048: Okular::Part::slotReload() (part.cpp:2725)
==24464==    by 0x1F10ED57: QtPrivate::FunctorCall<QtPrivate::IndexesList<>,
QtPrivate::List<>, void, void (Okular::Part::*)()>::call(void
(Okular::Part::*)(), Okular::Part*, void**) (qobjectdefs_impl.h:141)
==24464==    by 0x1F10DD8E: void QtPrivate::FunctionPointer<void
(Okular::Part::*)()>::call<QtPrivate::List<>, void>(void (Okular::Part::*)(),
Okular::Part*, void**) (qobjectdefs_impl.h:160)
==24464==    by 0x1F10C230: QtPrivate::QSlotObject<void (Okular::Part::*)(),
QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*,
void**, bool*) (qobject_impl.h:120)
==24464==    by 0x8CDC95D: QMetaObject::activate(QObject*, int, int, void**)
(in /usr/lib/x86_64-linux-gnu/libQt5Core.so.5.7.1)
==24464==    by 0x7F5D1C1: QAction::triggered(bool) (in
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.7.1)
==24464==  Block was alloc'd at
==24464==    at 0x4C2C21F: operator new(unsigned long)
(vg_replace_malloc.c:334)
==24464==    by 0x1F179767: PageView::notifySetup(QVector<Okular::Page*>
const&, int) (pageview.cpp:976)
==24464==    by 0x1F4EC73A: Okular::Document::openDocument(QString const&, QUrl
const&, QMimeType const&, QString const&) (document.cpp:2452)
==24464==    by 0x1F0FB57A: Okular::Part::doOpenFile(QMimeType const&, QString
const&, bool*) (part.cpp:1292)
==24464==    by 0x1F0FC236: Okular::Part::openFile() (part.cpp:1414)
==24464==    by 0x4E5F810: ??? (in
/usr/lib/x86_64-linux-gnu/libKF5Parts.so.5.28.0)
==24464==    by 0x4E606A3: KParts::ReadOnlyPart::openUrl(QUrl const&) (in
/usr/lib/x86_64-linux-gnu/libKF5Parts.so.5.28.0)
==24464==    by 0x1F0FD58F: Okular::Part::openUrl(QUrl const&) (part.cpp:1567)
==24464==    by 0x11BB87: Shell::openUrl(QUrl const&, QString const&)
(shell.cpp:277)
==24464==    by 0x11B666: Shell::openDocument(QUrl const&, QString const&)
(shell.cpp:218)
==24464==    by 0x118ABB: Okular::main(QStringList const&, QString const&)
(okular_main.cpp:170)
==24464==    by 0x1152AB: main (main.cpp:72)
==24464==

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