[vtkusers] VTk/Examples/GUI/Qt/GraphicsView crashed on win7
Luke
hazelnusse at gmail.com
Wed May 2 03:57:30 EDT 2012
Thanks. This fixes the problem for me.
What are the steps to submit a review on gerrit? Is there a standard
procedure to follow for reviewing patches?
Luke
On Tue, May 1, 2012 at 7:40 AM, Clinton Stimpson <clinton at elemtech.com> wrote:
> Here's a fix for this problem.
> http://review.source.kitware.com/#/c/5427/
>
> Clint
>
> On Apr 29, 2012, at 4:12 PM, Luke wrote:
>
>> I am getting a seg fault with the example qtgraphicsview. It happens
>> when I use the mouse wheel or right click on either the
>> GraphLayoutViewItem or the TreeRingViewItem. It looks like a null
>> pointer is being deferenced in vtkRenderer::GetActiveCamera, I am not
>> familiar enough with this code to know what is needed to prevent it
>> from happening.
>>
>> This is Qt 4.7.4, vtk 5.10-rc3.
>>
>> Here is the backtrace from gdb, hopefully it will be helpful to
>> somebody in tracking down the bug:
>>
>> luke at LenovoW510 ~/repos/VTK-build $ gdb bin/qtgraphicsview
>> GNU gdb (Gentoo 7.3.1 p2) 7.3.1
>> Copyright (C) 2011 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
>> and "show warranty" for details.
>> This GDB was configured as "x86_64-pc-linux-gnu".
>> For bug reporting instructions, please see:
>> <http://bugs.gentoo.org/>...
>> Reading symbols from /home/luke/repos/VTK-build/bin/qtgraphicsview...done.
>> (gdb) run
>> Starting program: /home/luke/repos/VTK-build/bin/qtgraphicsview
>> warning: Could not load shared library symbols for linux-vdso.so.1.
>> Do you need "set solib-search-path" or "set sysroot"?
>> [Thread debugging using libthread_db enabled]
>> [New Thread 0x7fffec829700 (LWP 24213)]
>> [New Thread 0x7fffebf08700 (LWP 24214)]
>> [New Thread 0x7fffeae77700 (LWP 24215)]
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x000000000084df3e in vtkRenderer::GetActiveCamera (this=0x0) at
>> /home/luke/repos/VTK/Rendering/vtkRenderer.cxx:732
>> 732 if ( this->ActiveCamera == NULL )
>> (gdb) bt full
>> #0 0x000000000084df3e in vtkRenderer::GetActiveCamera (this=0x0) at
>> /home/luke/repos/VTK/Rendering/vtkRenderer.cxx:732
>> No locals.
>> #1 0x0000000000a7ddb8 in vtkInteractorStyleRubberBand2D::OnMouseMove
>> (this=0x19fddf0)
>> at /home/luke/repos/VTK/Rendering/vtkInteractorStyleRubberBand2D.cxx:160
>> lastPt = {272, 301}
>> lastFocalPt = {6.9533558069077419e-310,
>> 8.0260568914393828e-317, 6.9533558069128802e-310}
>> rwi = 0x19db8e0
>> curPt = {272, 302}
>> camera = 0xf7cd34
>> lastScale = 6.9533558069109039e-310
>> lastPos = {1.7601598508840916e-316, 8.0251626326204102e-317,
>> 1.7424003648049405e-316}
>> #2 0x00000000008c010f in vtkInteractorStyle::ProcessEvents (event=26,
>> clientdata=0x19fddf0, calldata=0x7fffffffbb20)
>> at /home/luke/repos/VTK/Rendering/vtkInteractorStyle.cxx:1007
>> self = 0x19fddf0
>> #3 0x0000000000ee7c1f in vtkCallbackCommand::Execute (this=0x19fe090,
>> caller=0x19db8e0, event=26, callData=0x7fffffffbb20)
>> at /home/luke/repos/VTK/Common/vtkCallbackCommand.cxx:42
>> No locals.
>> #4 0x0000000000f7c7b5 in vtkSubjectHelper::InvokeEvent
>> (this=0x19f73c0, event=26, callData=0x7fffffffbb20, self=0x19db8e0)
>> at /home/luke/repos/VTK/Common/vtkObject.cxx:602
>> command = 0x19fe090
>> vIter = {first = 28, second = true}
>> focusHandled = 0
>> saveListModified = 1
>> visited = std::map with 32 elements = {[24] = false, [25] =
>> false, [26] = false, [27] = false, [28] = true, [29] = false, [30] =
>> false,
>> [31] = false, [32] = false, [33] = false, [34] = false, [35]
>> = false, [36] = false, [37] = false, [38] = false, [39] = false, [40]
>> = false,
>> [41] = false, [42] = false, [43] = false, [44] = false, [45]
>> = false, [46] = false, [47] = false, [48] = false, [49] = false, [50]
>> = false,
>> [51] = false, [52] = false, [53] = false, [54] = false, [55] = false}
>> elem = 0x19f6810
>> next = 0x19f6940
>> #5 0x0000000000f7ccbf in vtkObject::InvokeEvent (this=0x19db8e0,
>> event=26, callData=0x7fffffffbb20) at
>> /home/luke/repos/VTK/Common/vtkObject.cxx:770
>> No locals.
>> #6 0x00000000008455a2 in QVTKInteractorAdapter::ProcessEvent
>> (this=0x19f74a0, e=0x7fffffffbb20, iren=0x19db8e0)
>> at /home/luke/repos/VTK/GUISupport/Qt/QVTKInteractorAdapter.cxx:117
>> e2 = 0x7fffffffbb20
>> t = QEvent::MouseMove
>> #7 0x0000000000838a56 in QVTKGraphicsItem::mouseMoveEvent
>> (this=0x18ff3d0, e=0x7fffffffc320) at
>> /home/luke/repos/VTK/GUISupport/Qt/QVTKGraphicsItem.cxx:282
>> pf = {xp = 272, yp = 209}
>> pi = {xp = 272, yp = 209}
>> e2 = <incomplete type>
>> #8 0x00007ffff5ee75de in QGraphicsItem::sceneEvent(QEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #9 0x00007ffff5f0fbfa in
>> QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #10 0x00007ffff5f106fc in
>> QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> ---Type <return> to continue, or q <return> to quit---
>> #11 0x00007ffff5f1e6bb in QGraphicsScene::event(QEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #12 0x00007ffff5959944 in QApplicationPrivate::notify_helper(QObject*,
>> QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #13 0x00007ffff595e7b3 in QApplication::notify(QObject*, QEvent*) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #14 0x00007ffff489ee5c in QCoreApplication::notifyInternal(QObject*,
>> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #15 0x00007ffff5f38319 in
>> QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #16 0x00007ffff5f3853e in QGraphicsView::mouseMoveEvent(QMouseEvent*)
>> () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #17 0x00007ffff59a73f6 in QWidget::event(QEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #18 0x00007ffff5d20466 in QFrame::event(QEvent*) () from
>> /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #19 0x00007ffff5f3ca2b in QGraphicsView::viewportEvent(QEvent*) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #20 0x00007ffff489efe8 in
>> QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*,
>> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #21 0x00007ffff595990f in QApplicationPrivate::notify_helper(QObject*,
>> QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #22 0x00007ffff595efef in QApplication::notify(QObject*, QEvent*) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #23 0x00007ffff489ee5c in QCoreApplication::notifyInternal(QObject*,
>> QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #24 0x00007ffff595a912 in
>> QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*,
>> QWidget*, QWidget**, QPointer<QWidget>&, bool) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #25 0x00007ffff59d2f18 in QETWidget::translateMouseEvent(_XEvent
>> const*) () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #26 0x00007ffff59d1d1a in QApplication::x11ProcessEvent(_XEvent*) ()
>> from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #27 0x00007ffff59f8cb2 in x11EventSourceDispatch(_GSource*, int
>> (*)(void*), void*) () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> #28 0x00007ffff1bf15dd in g_main_context_dispatch () from
>> /usr/lib64/libglib-2.0.so.0
>> No symbol table info available.
>> #29 0x00007ffff1bf1dd8 in g_main_context_iterate.isra.21 () from
>> /usr/lib64/libglib-2.0.so.0
>> No symbol table info available.
>> #30 0x00007ffff1bf1fa9 in g_main_context_iteration () from
>> /usr/lib64/libglib-2.0.so.0
>> No symbol table info available.
>> #31 0x00007ffff48c8a1f in
>> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
>> () from /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #32 0x00007ffff59f894e in
>> QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
>> () from /usr/lib64/qt4/libQtGui.so.4
>> No symbol table info available.
>> ---Type <return> to continue, or q <return> to quit---
>> #33 0x00007ffff489e062 in
>> QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
>> from /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #34 0x00007ffff489e25f in
>> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
>> /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #35 0x00007ffff48a2257 in QCoreApplication::exec() () from
>> /usr/lib64/qt4/libQtCore.so.4
>> No symbol table info available.
>> #36 0x00000000008323b0 in main (argc=1, argv=0x7fffffffdbd8) at
>> /home/luke/repos/VTK/Examples/GUI/Qt/GraphicsView/main.cpp:13
>> app = <incomplete type>
>> view = {<QGraphicsView> = {<No data fields>}, mCtx =
>> 0x18fec90, mWidget = 0x18fd370}
>> (gdb) kill
>> Kill the program being debugged? (y or n) y
>> (gdb) quit
>> luke at LenovoW510 ~/repos/VTK-build $
>>
>>
>> On Thu, Mar 29, 2012 at 2:08 AM, septem <septem.wu at gmail.com> wrote:
>>> Thank you for your response.
>>>
>>> Qt4.8 is configured use the configure.exe
>>>
>>> vtk is configured use cmake and build against Qt4.8
>>>
>>> All the classes and functions are working fine except QVTKGraphicsItem
>>>
>>> After I removed the code which contains "QVTKGraphicsItem", the program runs
>>> ok.
>>>
>>> --
>>> View this message in context: http://vtk.1045678.n5.nabble.com/VTk-Examples-GUI-Qt-GraphicsView-crashed-on-win7-tp5602763p5603110.html
>>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>> _______________________________________________
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>>
>>
>>
>> --
>> "Those who would give up essential liberty to purchase a little
>> temporary safety deserve neither liberty nor safety."
>>
>> -- Benjamin Franklin, Historical Review of Pennsylvania, 1759
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
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>
--
"Those who would give up essential liberty to purchase a little
temporary safety deserve neither liberty nor safety."
-- Benjamin Franklin, Historical Review of Pennsylvania, 1759
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