regression: exporting atlas as image crashes QGIS

[qgib]

Author Name: Mathieu Pellerin - nIRV (Mathieu Pellerin - nIRV)
Original Redmine Issue: 16623
Affected QGIS version: master
Redmine category:map_composer/printing

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Under QGIS master, attempting to export an atlas as a set of images crashes QGIS. The crash occurs prior to displaying the "pick a directory" dialog.

Steps to reproduce

1. Open an atlas-enabled project, and open its composer
2. Export the atlas-enabled composer as image
3. boom

gdb where output

#_0  0x00007ffff49af124 in QLayout::parentWidget() const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_1  0x00007ffff49b008c in QLayout::addChildWidget(QWidget*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_2  0x00007ffff49b01ff in QLayout::addWidget(QWidget*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_3  0x00007ffff757311c in QgsComposer::exportCompositionAsImage(QgsComposer::OutputMode) (this=0x555556210630, mode=QgsComposer::Atlas) at /home/webmaster/dev/cpp/QGIS/src/app/composer/qgscomposer.cpp:2164
#_4  0x00007ffff7570595 in QgsComposer::on_mActionExportAtlasAsImage_triggered() (this=0x555556210630) at /home/webmaster/dev/cpp/QGIS/src/app/composer/qgscomposer.cpp:1911
#_5  0x00007ffff773bd52 in QgsComposer::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x555556210630, _c=QMetaObject::InvokeMetaMethod, _id=82, _a=0x7fffffffb230)
    at /home/webmaster/dev/cpp/QGIS/bm-qt5/src/app/composer/moc_qgscomposer.cpp:688
#_6  0x00007ffff773c334 in QgsComposer::qt_metacall(QMetaObject::Call, int, void**) (this=0x555556210630, _c=QMetaObject::InvokeMetaMethod, _id=82, _a=0x7fffffffb230)
    at /home/webmaster/dev/cpp/QGIS/bm-qt5/src/app/composer/moc_qgscomposer.cpp:785
#_7  0x00007ffff3ce1644 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_8  0x00007ffff4986992 in QAction::triggered(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_9  0x00007ffff4989380 in QAction::activate(QAction::ActionEvent) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_10 0x00007ffff4af89ba in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_11 0x00007ffff4b00044 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_12 0x00007ffff4b01016 in QMenu::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_13 0x00007ffff49d4a78 in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_14 0x00007ffff4b03343 in QMenu::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_15 0x00007ffff498d35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_16 0x00007ffff49959cd in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_17 0x00007ffff55c7691 in QgsApplication::notify(QObject*, QEvent*) (this=0x7fffffffda10, receiver=0x555555b555e0, event=0x7fffffffb900) at /home/webmaster/dev/cpp/QGIS/src/core/qgsapplication.cpp:295
#_18 0x00007ffff3cb58a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_19 0x00007ffff499407d in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_20 0x00007ffff49ef506 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_21 0x00007ffff49f1b03 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_22 0x00007ffff498d35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_23 0x00007ffff4994b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_24 0x00007ffff55c7691 in QgsApplication::notify(QObject*, QEvent*) (this=0x7fffffffda10, receiver=0x5555598849e0, event=0x7fffffffbda0) at /home/webmaster/dev/cpp/QGIS/src/core/qgsapplication.cpp:295
#_25 0x00007ffff3cb58a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_26 0x00007ffff41f9723 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#_27 0x00007ffff41fb2a5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#_28 0x00007ffff41d923b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#_29 0x00007fffd1be4830 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#_30 0x00007fffea1f0377 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_31 0x00007fffea1f05e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_32 0x00007fffea1f068c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_33 0x00007ffff3d09f0f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_34 0x00007ffff3cb388a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_35 0x00007ffff4afdb0d in QMenu::exec(QPoint const&, QAction*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_36 0x00007ffff4b427a5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_37 0x00007ffff3ce14a9 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_38 0x00007ffff4a75f17 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_39 0x00007ffff4a765e1 in QAbstractButton::mousePressEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_40 0x00007ffff4b4349f in QToolButton::mousePressEvent(QMouseEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_41 0x00007ffff49d53ef in QWidget::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_42 0x00007ffff4b43749 in QToolButton::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_43 0x00007ffff498d35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_44 0x00007ffff49959cd in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_45 0x00007ffff55c7691 in QgsApplication::notify(QObject*, QEvent*) (this=0x7fffffffda10, receiver=0x555556117dd0, event=0x7fffffffc950) at /home/webmaster/dev/cpp/QGIS/src/core/qgsapplication.cpp:295
#_46 0x00007ffff3cb58a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#_47 0x00007ffff499407d in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_48 0x00007ffff49ef0f6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_49 0x00007ffff49f1b03 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_50 0x00007ffff498d35c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_51 0x00007ffff4994b11 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#_52 0x00007ffff55c7691 in QgsApplication::notify(QObject*, QEvent*) (this=0x7fffffffda10, receiver=0x555556064600, event=0x7fffffffcdf0) at /home/webmaster/dev/cpp/QGIS/src/core/qgsapplication.cpp:295
#_53 0x00007ffff3cb58a0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

[qgib]

Author Name: Mathieu Pellerin - nIRV (Mathieu Pellerin - nIRV)

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Applied in changeset e0cad1f.

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• done_ratio was changed from 0 to 100
• status_id was changed from Open to Closed