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  1. Qt
  2. QTBUG-38086

QComboBox delegate popup leads to crash when added to qgraphicsscene as a qraphicsproxywidget

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 5.3.0 Beta1
    • Widgets: GraphicsView
    • None
    • MinGW 32 on Windows 8.1 64bit or Windows 7 64bit

    Description

      A QComboBox is used as a delegate for a QTableView.
      The view is embedded as a QGraphicsProxyWidget in a QGraphicsScene.
      When the delegate popup closes, the application crashes on:

      QGraphicsItem::hasFocus
              3216	in graphicsview\qgraphicsitem.cpp
      0x8ae0d50  <+0x000a>         mov    -0xc(%ebp),%eax
      0x8ae0d53  <+0x000d>         add    $0x4,%eax
      0x8ae0d56  <+0x0010>         mov    %eax,%ecx
      0x8ae0d58  <+0x0012>         call   0x8c36010 <QScopedPointer<QGraphicsItemPrivate, QScopedPointerDeleter<QGraphicsItemPrivate> >::operator->() const>
      0x8ae0d5d  <+0x0017>         mov    0x70(%eax),%eax
      

      A second issue is, that if there is no event filter with:

      if(event->type()==QEvent::FocusOut) return true;

      the ListView popup will be closed immediately.

      Example project:

      combodelegate.h
      #ifndef COMBODELEGATE_H
      #define COMBODELEGATE_H
      
      #include <QtWidgets>
      
      class ComboDelegate : public QItemDelegate
      {
          Q_OBJECT
      public:
          explicit ComboDelegate(QObject *parent = 0);
          QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem,
                                const QModelIndex) const;
          void setEditorData(QWidget *editor, const QModelIndex &index) const;
      protected:
          virtual bool eventFilter(QObject, QEvent *event);
      };
      
      #endif // COMBODELEGATE_H
      
      combodelegate.cpp
      #include "combodelegate.h"
      
      ComboDelegate::ComboDelegate(QObject *parent) : QItemDelegate(parent)
      {}
      
      QWidget *ComboDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem,
                                const QModelIndex) const
      {
          QComboBox *comboBox = new QComboBox(parent);
          comboBox->addItem("One");
          comboBox->addItem("Two");
          comboBox->addItem("Three");
          return comboBox;
      }
      
      void ComboDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
      {
          QString value = index.model()->data(index, Qt::EditRole).toString();
          QComboBox *comboBox = static_cast<QComboBox*>(editor);
          comboBox->setEditText(value);
      }
      
      bool ComboDelegate::eventFilter(QObject, QEvent *event)
      // prevents ListView popup from closing immediately
      {
          if(event->type()==QEvent::FocusOut) return true;
          return false;
      }
      
      main.cpp
      #include <QApplication>
      #include <QtWidgets>
      #include "combodelegate.h"
      
      int main(int argc, char *argv[])
      {
          QApplication a(argc, argv);
      
          QGraphicsScene scene;
          QTableWidget *table = new QTableWidget(4,2);
          table->setItemDelegate(new ComboDelegate(table));
          QGraphicsProxyWidget *proxy = new QGraphicsProxyWidget();
          proxy->setWidget(table);
          scene.addItem(proxy);
          QGraphicsView view(&scene);
          view.show();
      
          return a.exec();
      }
      
      Backtrace
      Thread 5 (Thread 404.0x1614):
      #0  0x7780c1ac in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #1  0x749740bc in WINMM!PlaySoundW () from C:\WINDOWS\SysWOW64\winmm.dll
      No symbol table info available.
      #2  0x771f495d in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\SysWOW64\kernel32.dll
      No symbol table info available.
      #3  0x778198ee in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #4  0x778198c4 in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #5  0x00000000 in ?? ()
      No symbol table info available.
      
      Thread 4 (Thread 404.0x13c0):
      #0  0x7780c1ac in ntdll!ZwWaitForMultipleObjects () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #1  0x7554865e in TerminateProcess () from C:\WINDOWS\SysWOW64\KernelBase.dll
      No symbol table info available.
      #2  0x76b53984 in combase!CoFreeUnusedLibrariesEx () from C:\WINDOWS\SysWOW64\combase.dll
      No symbol table info available.
      #3  0x76b539f2 in combase!CoFreeUnusedLibrariesEx () from C:\WINDOWS\SysWOW64\combase.dll
      No symbol table info available.
      #4  0x76b53aa8 in combase!CoFreeUnusedLibrariesEx () from C:\WINDOWS\SysWOW64\combase.dll
      No symbol table info available.
      #5  0x76b53bfe in combase!CoFreeUnusedLibrariesEx () from C:\WINDOWS\SysWOW64\combase.dll
      No symbol table info available.
      #6  0x771f495d in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\SysWOW64\kernel32.dll
      No symbol table info available.
      #7  0x778198ee in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #8  0x778198c4 in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #9  0x00000000 in ?? ()
      No symbol table info available.
      
      Thread 3 (Thread 404.0x1ed8):
      #0  0x7780d6ec in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #1  0x777eefd1 in ntdll!RtlWakeAllConditionVariable () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #2  0x771f495d in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\SysWOW64\kernel32.dll
      No symbol table info available.
      #3  0x778198ee in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #4  0x778198c4 in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #5  0x00000000 in ?? ()
      No symbol table info available.
      
      Thread 2 (Thread 404.0x237c):
      #0  0x7780d6ec in ntdll!ZwWaitForWorkViaWorkerFactory () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #1  0x777eefd1 in ntdll!RtlWakeAllConditionVariable () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #2  0x771f495d in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\SysWOW64\kernel32.dll
      No symbol table info available.
      #3  0x778198ee in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #4  0x778198c4 in ntdll!RtlInitializeExceptionChain () from C:\WINDOWS\SYSTEM32\ntdll.dll
      No symbol table info available.
      #5  0x00000000 in ?? ()
      No symbol table info available.
      
      Thread 1 (Thread 404.0x1be4):
      #0  0x08ae0d5d in QGraphicsItem::hasFocus (this=0x14832ad8) at graphicsview\qgraphicsitem.cpp:3216
      No locals.
      #1  0x08879fa8 in QWidget::hasFocus (this=0x148393c8) at kernel\qwidget.cpp:5910
              e = 0x14842958
              window = 0x14841fb8
              w = 0x148393c8
      #2  0x0887a653 in QWidget::clearFocus (this=0x148393c8) at kernel\qwidget.cpp:6106
              w = 0x14841fb8
              topData = 0x13df33b8
      #3  0x0886f122 in QWidget::~QWidget (this=0x148393c8, __in_chrg=<optimized out>) at kernel\qwidget.cpp:1415
              w = 0x148393c8
              window = 0x14841fb8
              e = 0x14842958
              d = 0x148399d0
              blocked = 20
      #4  0x089826b8 in QFrame::~QFrame (this=0x148393c8, __in_chrg=<optimized out>) at widgets\qframe.cpp:217
      No locals.
      #5  0x089fbe7c in QAbstractScrollArea::~QAbstractScrollArea (this=0x148393c8, __in_chrg=<optimized out>) at widgets\qabstractscrollarea.cpp:585
      No locals.
      #6  0x08a6c692 in QAbstractItemView::~QAbstractItemView (this=0x148393c8, __in_chrg=<optimized out>) at itemviews\qabstractitemview.cpp:629
      No locals.
      #7  0x08a84b56 in QListView::~QListView (this=0x148393c8, __in_chrg=<optimized out>) at itemviews\qlistview.cpp:207
      No locals.
      #8  0x08b98b76 in QComboBoxListView::~QComboBoxListView (this=0x148393c8, __in_chrg=<optimized out>) at .moc/debug/../../widgets/qcombobox_p.h:83
      No locals.
      #9  0x08b98b43 in QComboBoxListView::~QComboBoxListView (this=0x148393c8, __in_chrg=<optimized out>) at .moc/debug/../../widgets/qcombobox_p.h:83
      No locals.
      #10 0x6b94feb7 in QObjectPrivate::deleteChildren (this=0x14842030) at kernel\qobject.cpp:1935
              i = 0
      #11 0x0886f302 in QWidget::~QWidget (this=0x14841fb8, __in_chrg=<optimized out>) at kernel\qwidget.cpp:1489
              d = 0x14842030
              blocked = false
      #12 0x089826b8 in QFrame::~QFrame (this=0x14841fb8, __in_chrg=<optimized out>) at widgets\qframe.cpp:217
      No locals.
      #13 0x08bb1346 in QComboBoxPrivateContainer::~QComboBoxPrivateContainer (this=0x14841fb8, __in_chrg=<optimized out>) at .moc/debug/../../widgets/qcombobox_p.h:216
      No locals.
      #14 0x08bb12f7 in QComboBoxPrivateContainer::~QComboBoxPrivateContainer (this=0x14841fb8, __in_chrg=<optimized out>) at .moc/debug/../../widgets/qcombobox_p.h:216
      No locals.
      #15 0x6b94feb7 in QObjectPrivate::deleteChildren (this=0x148317f8) at kernel\qobject.cpp:1935
              i = 1
      #16 0x0886f302 in QWidget::~QWidget (this=0x13df33b8, __in_chrg=<optimized out>) at kernel\qwidget.cpp:1489
              d = 0x148317f8
              blocked = false
      #17 0x08959389 in QComboBox::~QComboBox (this=0x13df33b8, __in_chrg=<optimized out>) at widgets\qcombobox.cpp:1289
      No locals.
      #18 0x089593bf in QComboBox::~QComboBox (this=0x13df33b8, __in_chrg=<optimized out>) at widgets\qcombobox.cpp:1300
      No locals.
      #19 0x6b955d3c in qDeleteInEventHandler (o=0x13df33b8) at kernel\qobject.cpp:4344
      No locals.
      #20 0x6b94eb0f in QObject::event (this=0x13df33b8, e=0x14842828) at kernel\qobject.cpp:1232
      No locals.
      #21 0x0887fbb5 in QWidget::event (this=0x13df33b8, event=0x14842828) at kernel\qwidget.cpp:8376
              d = 0x148317f8
      #22 0x0895dbcb in QComboBox::event (this=0x13df33b8, event=0x14842828) at widgets\qcombobox.cpp:2860
              d = 0x148317f8
      #23 0x0884dead in QApplicationPrivate::notify_helper (this=0x12153998, receiver=0x13df33b8, e=0x14842828) at kernel\qapplication.cpp:3488
              consumed = false
      #24 0x0884dd31 in QApplication::notify (this=0x28fe1c, receiver=0x13df33b8, e=0x14842828) at kernel\qapplication.cpp:3453
              d = 0x12153998
              __PRETTY_FUNCTION__ = "virtual bool QApplication::notify(QObject*, QEvent*)"
              res = false
      #25 0x6b92957e in QCoreApplication::notifyInternal (this=0x28fe1c, receiver=0x13df33b8, event=0x14842828) at kernel\qcoreapplication.cpp:935
              threadData = 0x12156fa8
              loopLevelCounter = {threadData = 0x12156fa8}
              result = false
              cbdata = {0x13df33b8, 0x14842828, 0x28db57}
              d = 0x148317f8
      #26 0x6b9ce70f in QCoreApplication::sendEvent (receiver=0x13df33b8, event=0x14842828) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
      No locals.
      #27 0x6b92a736 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x12156fa8) at kernel\qcoreapplication.cpp:1539
              e = 0x14842828
              pe = @0x13d88440: {receiver = 0x13df33b8, event = 0x0, priority = 0}
              r = 0x13df33b8
              unlocker = {m = @0x28dbd0}
              event_deleter = {d = 0x14842828}
              __PRETTY_FUNCTION__ = "static void QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)"
              locker = {val = 303394756}
              startOffset = 0
              i = @0x12156fbc: 13
              cleanup = {receiver = 0x0, event_type = 0, data = 0x12156fa8, exceptionCaught = true}
      #28 0x6b92a21e in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel\qcoreapplication.cpp:1397
              data = 0x12156fa8
      #29 0x6285c6ad in QWindowsGuiEventDispatcher::sendPostedEvents (this=0x12157000) at qwindowsguieventdispatcher.cpp:88
      No locals.
      #30 0x6b977cf0 in qt_internal_proc(HWND__*, unsigned int, unsigned int, long)@16 (hwnd=0x3b0ada, message=1025, wp=0, lp=0) at kernel\qeventdispatcher_win.cpp:421
              localSerialNumber = 244
              msg = {hwnd = 0x3b0ada, message = 1025, wParam = 0, lParam = 0, time = 0, pt = {x = 196608, y = 0}}
              q = 0x12157000
              dispatcher = 0x12157000
              result = 2677944
              d = 0x13d301d0
      #31 0x75227694 in USER32!CallNextHookEx () from C:\WINDOWS\SysWOW64\user32.dll
      No symbol table info available.
      #32 0x75228baa in USER32!FindWindowA () from C:\WINDOWS\SysWOW64\user32.dll
      No symbol table info available.
      #33 0x75228468 in USER32!CallNextHookEx () from C:\WINDOWS\SysWOW64\user32.dll
      No symbol table info available.
      #34 0x75229c40 in USER32!DispatchMessageW () from C:\WINDOWS\SysWOW64\user32.dll
      No symbol table info available.
      #35 0x6b978ff3 in QEventDispatcherWin32::processEvents (this=0x12157000, flags=...) at kernel\qeventdispatcher_win.cpp:756
              nCount = 0
              msg = {hwnd = 0x3b0ada, message = 1025, wParam = 0, lParam = 0, time = 704373453, pt = {x = 1024, y = 556}}
              haveMessage = true
              waitRet = 0
              pHandles = {0x3153b8, 0x3, 0x75220000, 0x314390, 0x28de70, 0x280000, 0x28dfbc, 0x778614b1 <wcstombs+135>, 0x2da9fc75, 0x2e04ee, 0x7782db45 <ntdll!LdrRscIsTypeExist+161>, 0x7a, 0x27, 0x16, 0x0, 0x28df7c, 0x5a03f8f1, 0x75220000, 0x7f00, 0x7782b1a8 <ntdll!RtlLcidToLocaleName+1474>, 0x2, 0x13d61db8, 0x28dfac, 0x77811b00 <ntdll!RtlDosApplyFileIsolationRedirection_Ustr+1014>, 0x3, 0x752a66c8, 0x75220000, 0x28df68, 0x752a66f8, 0x28e1c0, 0x752a66f8, 0x6040002, 0x778614b1 <wcstombs+135>, 0x95040190, 0x0, 0x0, 0x2e00c0, 0x0, 0x28e020, 0x2e0290, 0x2e0000, 0x386, 0x3, 0x7f, 0x28e020, 0x2e00c0, 0x28e018, 0x1050, 0x0, 0x0, 0x752a6000, 0xdb00860, 0x75220100, 0x2c70, 0x75220000, 0x7f, 0x3153a8, 0x7f, 0x1260000, 0xeeee, 0x100008a, 0x2e00c0, 0x7f}
              processedTimers = {a = 256, s = 0, ptr = 0x28dfa0, {array = "T\f\a\000\023\001\000\000\001\000\000\000\000\000\000\000)\336\373)\375\003\000\000Q\002\000\000\260S1\000\000\000.\000\340\340(\000\000\000.\000\177\000\000\000\340\340(\000\vg}w\001\000\000\000\270S1\000\177\000\000\000\061\362\200w\220\005\000\000`\002.\000\000\000.\000\270S1\000\214\340(\000\204\365\200wbC1\000\003\000\004\a|\003\004{\000\000.\000hC1\000`C1\000\000\000.\000\070\341(\000\000\000.\000\177\000\000\000\070\341(\000\vg}w\001\000\000\000hC1\000\177\000\000\000\061\362\200w\005\306\003Z`C1\000\000\000.\000hC1\000\000\000.\000\260S1\000\000\000.\000\000\000.\000\206\003\004\201\000\000.\000\177\000\000\000\355I\213w\320\033\000\000\000\000.\000\001", '\000' <repeats 11 times>, "|\003\000\000\000\000\000\000\000\000\000\000\344\340(\000d4\213w\177\000\000\000\000\064\213w\220\004.\000\374\001\000\000\000\000.\000`C1\000\206\003\000\000\177\000\000\000\340\350(\000\210>.\000\177\000\000\000\300\000.\000 \034\000\000\240\340(\000\001\000\000\000\261\024\206w\000\000\000\000\206\003\000\000\000\000\000\000~\353\200w\000\000\000\000\000\000\000\000\177\000\000\000\000\000.\000\220\004.\000\374\001\000\000\270S1\000`\002.\000\220\005\000\000\177\000\000\000@\341(\000\210>.\000\001\000\000\000\300\000.\000\000\000\000\000\236\251\207w\324\341(\000\261\024\206w\305\314\253-\376\377\377\377\214\341(\000~\353\200w", '\000' <repeats 14 times>, ".\000\000\000\000\000`C1\000\000\000.\000\000\000.\000\000\000\000\000\000\000.\000\230\341(\000\355I\213w\001\000\000\000\000\000.\000\000\000\000\000\236\251\207w\000\000.\000\001\000\000\000\000\000.\000\000\000\000\000D\005\000\000`\002.\000\000\000.\000\070<\213w\331\306\003Z\000\000.\000\000\000.\000\003\000\004\a\000\000.\000\000\000.\000\310E1\000\300E1\000\000\000.\000X\343(\000\000\000.\000\177\000\000\000X\343(\000\000\000.\000w\326~w\220C1\000\000\000\000\000\017\367\200we\304\003Z(\002\000\000\034\002\000\000\000\000.\000\000\000.\000hC1\000\000\000.\000\236\"\005\314\270S1\000\017\000\205\001\000\020\000\000 \000\000\000*\005.\000\233S1\000\274\372\377\377E\000\000\000\001", '\000' <repeats 11 times>, "\374\341(\000\000\000\000\000\300\342(\000\255T%uwm\244-\265l\324vsl\324vO&\001\254\017\000\205\001\000\000.\000\236\"\005\314", '\000' <repeats 12 times>, 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\000\000\000(\000\000\000\000\000\000\000D\373(\000P\376(\000 \000\000\000 \000\000\000\337\201\235kx\243\330\023\004\000\000\000\005\000\000\000@\242\330\023\000\000\000\000(\000\000\000\001\000\000\000@\242\330\023\b2\025\001 \234\252k\200\373(\000x\373(\000\301w\241k\220\373(\000\230\373(\000\027\366\245k\002\000\000\000\374\373(\000\b2\025\022\000\000\025\022\002\000\000\000\274\373(\000\350\373(\000\227\233yk", q_for_alignment_1 = 1181116468308, q_for_alignment_2 = 5.8354907072832423e-312}}
              canWait = false
              retVal = false
              seenWM_QT_SENDPOSTEDEVENTS = true
              d = 0x13d301d0
              needWM_QT_SENDPOSTEDEVENTS = false
      #36 0x6285c58c in QWindowsGuiEventDispatcher::processEvents (this=0x12157000, flags=...) at qwindowsguieventdispatcher.cpp:80
              __PRETTY_FUNCTION__ = "virtual bool QWindowsGuiEventDispatcher::processEvents(QEventLoop::ProcessEventsFlags)"
              __FUNCTION__ = "processEvents"
              rc = 204
      #37 0x6b927624 in QEventLoop::processEvents (this=0x28fd60, flags=...) at kernel\qeventloop.cpp:136
              d = 0x13d8a310
      #38 0x6b9278bf in QEventLoop::exec (this=0x28fd60, flags=...) at kernel\qeventloop.cpp:212
              locker = {val = 303381184}
              __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
              ref = {d = 0x13d8a310, locker = @0x28fd1c, exceptionCaught = true}
              app = 0x28fe1c
              d = 0x13d8a310
      #39 0x6b929bcd in QCoreApplication::exec () at kernel\qcoreapplication.cpp:1188
              threadData = 0x12156fa8
              __PRETTY_FUNCTION__ = "static int QCoreApplication::exec()"
              eventLoop = {<QObject> = {_vptr.QObject = 0x6bbe0b88 <vtable for QEventLoop+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x6bb74780 <qt_meta_stringdata_QObject>, data = 0x6bb74860 <qt_meta_data_QObject>, static_metacall = 0x6b956736 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x13d8a310}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x6bbc2ee0 <qt_meta_stringdata_Qt>, data = 0x6bbcac20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x6bb7434c <QObject::staticMetaObject>, stringdata = 0x6bbd5f60 <qt_meta_stringdata_QEventLoop>, data = 0x6bbd5fc0 <qt_meta_data_QEventLoop>, static_metacall = 0x6b9ab63c <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
              returnCode = 332885032
      #40 0x0073631e in QGuiApplication::exec () at kernel\qguiapplication.cpp:1436
      No locals.
      #41 0x0884b2c9 in QApplication::exec () at kernel\qapplication.cpp:2736
      No locals.
      #42 0x00401750 in qMain (argc=1, argv=0x12156f70) at ..\GraphicsCombo\main.cpp:18
              a = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x8d4aa88 <vtable for QApplication+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x6bb74780 <qt_meta_stringdata_QObject>, data = 0x6bb74860 <qt_meta_data_QObject>, static_metacall = 0x6b956736 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x12153998}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x6bbc2ee0 <qt_meta_stringdata_Qt>, data = 0x6bbcac20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x6bb7434c <QObject::staticMetaObject>, stringdata = 0x6bbd60c0 <qt_meta_stringdata_QCoreApplication>, data = 0x6bbd6280 <qt_meta_data_QCoreApplication>, static_metacall = 0x6b9ab774 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x28fe1c}, static staticMetaObject = {d = {superdata = 0x6bbd603c <QCoreApplication::staticMetaObject>, stringdata = 0xae3220 <qt_meta_stringdata_QGuiApplication>, data = 0xae3580 <qt_meta_data_QGuiApplication>, static_metacall = 0x73bc60 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0xada020 <QGuiApplication::staticMetaObject>, stringdata = 0x8c7f300 <qt_meta_stringdata_QApplication>, data = 0x8c7f580 <qt_meta_data_QApplication>, static_metacall = 0x884f162 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
              scene = {<QObject> = {_vptr.QObject = 0x8d4d148 <vtable for QGraphicsScene+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x6bb74780 <qt_meta_stringdata_QObject>, data = 0x6bb74860 <qt_meta_data_QObject>, static_metacall = 0x6b956736 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x13d31c78}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x6bbc2ee0 <qt_meta_stringdata_Qt>, data = 0x6bbcac20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x6bb7434c <QObject::staticMetaObject>, stringdata = 0x8cd8f60 <qt_meta_stringdata_QGraphicsScene>, data = 0x8cd9380 <qt_meta_data_QGraphicsScene>, static_metacall = 0x8b15710 <QGraphicsScene::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
              table = 0x13d31718
              proxy = 0x13d74340
              view = {<QAbstractScrollArea> = {<QFrame> = {<QWidget> = {<QObject> = {_vptr.QObject = 0x8d4c2c8 <vtable for QGraphicsView+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x6bb74780 <qt_meta_stringdata_QObject>, data = 0x6bb74860 <qt_meta_data_QObject>, static_metacall = 0x6b956736 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x13d76c28}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x6bbc2ee0 <qt_meta_stringdata_Qt>, data = 0x6bbcac20 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QPaintDevice> = {_vptr.QPaintDevice = 0x8d4c3bc <vtable for QGraphicsView+252>, painters = 0, reserved = 0x0}, static staticMetaObject = {d = {superdata = 0x6bb7434c <QObject::staticMetaObject>, stringdata = 0x8c85260 <qt_meta_stringdata_QWidget>, data = 0x8c85ce0 <qt_meta_data_QWidget>, static_metacall = 0x8884cc8 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, data = 0x13d76cd0}, static staticMetaObject = {d = {superdata = 0x8c7c068 <QWidget::staticMetaObject>, stringdata = 0x8d39f80 <qt_meta_stringdata_QFrame>, data = 0x8d3a160 <qt_meta_data_QFrame>, static_metacall = 0x8b66640 <QFrame::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x8d39ee4 <QFrame::staticMetaObject>, stringdata = 0x8cb0c20 <qt_meta_stringdata_QAbstractScrollArea>, data = 0x8cb0de0 <qt_meta_data_QAbstractScrollArea>, static_metacall = 0x89fdf8a <QAbstractScrollArea::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x8cb0bb0 <QAbstractScrollArea::staticMetaObject>, stringdata = 0x8cdb860 <qt_meta_stringdata_QGraphicsView>, data = 0x8cdbf60 <qt_meta_data_QGraphicsView>, static_metacall = 0x8b2b276 <QGraphicsView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x8e8b4b0 <qt_meta_extradata_QGraphicsView>, extradata = 0x0}}}
      #43 0x00402dfd in WinMain@16 (instance=0x400000, prevInstance=0x0, cmdShow=10) at qtmain_win.cpp:131
              cmdParam = {d = 0x12157038}
              argc = 1
              argv = {d = 0x12156f60}
              result = 4202015
      #44 0x00403f1d in main ()
      No symbol table info available.
      

      Attachments

        1. Backtrace.txt
          41 kB
        2. combodelegate.cpp
          0.8 kB
        3. combodelegate.h
          0.5 kB
        4. GraphicsCombo.pro
          0.4 kB
        5. main.cpp
          0.5 kB

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              Unassigned Unassigned
              fifthfloor Sven Jaeger
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                Created:
                Updated:
                Resolved:

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