Qt QGraphicsView抢断关注OSX上的悬停？_Qt

Qt QGraphicsView抢断关注OSX上的悬停？

Qt QGraphicsView抢断关注OSX上的悬停？,qt,Qt,我有一个包含各种Qdock小部件的QMainWindow。其中一个QdockWidget具有QDoubleSpinBox。中间有一个QGraphicsView 当用户在SpinBox中编辑一个值，然后将鼠标悬停在QGraphicsView上时，它会窃取焦点。这可以通过在SpinBox的focusOutEvent（）期间检查QApplication:：focusWidget（）来确认添加以下代码可以消除焦点窃取，从而确认焦点正在移动到QGraphicsView void OtherQGraphi

我有一个包含各种Qdock小部件的QMainWindow。其中一个QdockWidget具有QDoubleSpinBox。中间有一个QGraphicsView

当用户在SpinBox中编辑一个值，然后将鼠标悬停在QGraphicsView上时，它会窃取焦点。这可以通过在SpinBox的focusOutEvent（）期间检查QApplication:：focusWidget（）来确认

添加以下代码可以消除焦点窃取，从而确认焦点正在移动到QGraphicsView

void OtherQGraphicsView::mouseMoveEvent(QMouseEvent *event) {
    QWidget *w = QApplication::focusWidget();
    if (w == this) {
        event->accept();
    }
}

据我所知，Qt不支持focusfollowshover模型。QGraphicsView如何通过mouseMoveEvent获得焦点

我应该对SpinBox做些什么来防止偷窃发生

例如，只需从Qt creator内置示例加载DiagramScene示例即可。当鼠标悬停在主面板上时，顶部的字体选择器将失去焦点
编辑：这发生在OSX（约塞米蒂）上，而不是Windows（8.1）
编辑2：发生违规事件时的堆栈跟踪：

0 NumberEdit::focusOutEvent(QFocusEvent *) inspector.cpp 123 0x10003cc00 1 QWidget::event(QEvent *) QWidget::event(QEvent*) 0x1001a8add 2 QAbstractSpinBox::event(QEvent *) QAbstractSpinBox::event(QEvent*) 0x100252bc9 3 QApplicationPrivate::notify_helper(QObject *, QEvent *) QApplicationPrivate::notify_helper(QObject*, QEvent*) 0x10016932b 4 QApplication::notify(QObject *, QEvent *) QApplication::notify(QObject*, QEvent*) 0x10016c648 5 QCoreApplication::notifyInternal(QObject *, QEvent *) QCoreApplication::notifyInternal(QObject*, QEvent*) 0x100fe1d83 6 QApplicationPrivate::setFocusWidget(QWidget *, Qt::FocusReason) QApplicationPrivate::setFocusWidget(QWidget*, Qt::FocusReason) 0x1001670ce 7 QWidget::setFocus(Qt::FocusReason) QWidget::setFocus(Qt::FocusReason) 0x1001a4809 8 QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget *, QEvent *, QPoint) QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget*, QEvent*, QPoint) 0x10016d348 9 QApplication::notify(QObject *, QEvent *) QApplication::notify(QObject*, QEvent*) 0x10016bef1 10 QCoreApplication::notifyInternal(QObject *, QEvent *) QCoreApplication::notifyInternal(QObject*, QEvent*) 0x100fe1d83 11 QApplicationPrivate::translateRawTouchEvent(QWidget *, QTouchDevice *, QList<QTouchEvent::TouchPoint> const&, unsigned long) QApplicationPrivate::translateRawTouchEvent(QWidget*, QTouchDevice*, QList<QTouchEvent::TouchPoint> const&, unsigned long) 0x10016ef2b 12 QWidgetWindow::event(QEvent *) QWidgetWindow::event(QEvent*) 0x1001c2eb5 13 QApplicationPrivate::notify_helper(QObject *, QEvent *) QApplicationPrivate::notify_helper(QObject*, QEvent*) 0x10016932b 14 QApplication::notify(QObject *, QEvent *) QApplication::notify(QObject*, QEvent*) 0x10016c648 15 QCoreApplication::notifyInternal(QObject *, QEvent *) QCoreApplication::notifyInternal(QObject*, QEvent*) 0x100fe1d83 16 QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::TouchEvent *) QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::TouchEvent*) 0x10081eb09 17 QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *) QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) 0x10081bc69 18 QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) 0x1008092da 19 QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void *) QCocoaEventDispatcherPrivate::postedEventsSourceCallback(void*) 0x1033b0411 20 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ 0x7fff895e87c1 21 __CFRunLoopDoSources0 __CFRunLoopDoSources0 0x7fff895da94d 22 __CFRunLoopRun __CFRunLoopRun 0x7fff895d9f7f 23 CFRunLoopRunSpecific CFRunLoopRunSpecific 0x7fff895d9998 24 RunCurrentEventLoopInMode RunCurrentEventLoopInMode 0x7fff880a27df 25 ReceiveNextEventCommon ReceiveNextEventCommon 0x7fff880a245e 26 _BlockUntilNextEventMatchingListInModeWithFilter _BlockUntilNextEventMatchingListInModeWithFilter 0x7fff880a239b 27 _DPSNextEvent _DPSNextEvent 0x7fff8b739a6d 28 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] 0x7fff8b739220 29 -[NSApplication run] -[NSApplication run] 0x7fff8b72d0c3 30 QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) QCocoaEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) 0x1033af2fd 31 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) 0x100fdf37d 32 QCoreApplication::exec() QCoreApplication::exec() 0x100fe235a 33 main main.cpp 100 0x100004b82 34 start start 0x100004014

0 NumberEdit:：focusOutEvent（QFocusEvent*）inspector.cpp 123 0x10003cc00 1 QWidget:：event（QEvent*）QWidget:：event（QEvent*）0x1001a8add 2 QAbstractSpinBox:：事件（QEvent*）QAbstractSpinBox:：事件（QEvent*）0x100252bc9 3 QApplicationPrivate:：notify_helper（QObject*，QEvent*）QApplicationPrivate:：notify_helper（QObject*，QEvent*）0x10016932b 4 QApplication:：notify（QObject*，QEvent*）QApplication:：notify（QObject*，QEvent*）0x10016c648 5 QCoreApplication:：notifyInternal（QObject*，QEvent*）QCoreApplication:：notifyInternal（QObject*，QEvent*）0x100fe1d83 6 QApplicationPrivate:：setFocusWidget（QWidget*，Qt:：FocusReason）QApplicationPrivate:：setFocusWidget（QWidget*，Qt:：FocusReason）0x1001670ce 7 QWidget:：setFocus（Qt:：FocusReason）QWidget:：setFocus（Qt:：FocusReason）0x1001a4809 8 QApplicationPrivate:：giveFocusAccordingToFocusPolicy（QWidget*，QEvent*，QPoint）QApplicationPrivate:：giveFocusAccordingToFocusPolicy（QWidget*，QEvent*，QPoint）0x10016d348 9 QApplication:：notify（QObject*，QEvent*）QApplication:：notify（QObject*，QEvent*）0x10016bef1 10 QCoreApplication:：notifyInternal（QObject*，QEvent*）QCoreApplication:：notifyInternal（QObject*，QEvent*）0x100fe1d83 11 QApplicationPrivate:：translateRawTouchEvent（QWidget*，QTouchDevice*，QList常量和，无符号长）QApplicationPrivate:：translateRawTouchEvent（QWidget*，QTouchDevice*，QList常量和，无符号长）0x10016ef2b 12 QWidgetWindow:：事件（QEvent*）QWidgetWindow:：事件（QEvent*）0x1001c2eb5 13 QApplicationPrivate:：notify_helper（QObject*，QEvent*）QApplicationPrivate:：notify_helper（QObject*，QEvent*）0x10016932b 14 QApplication:：notify（QObject*，QEvent*）QApplication:：notify（QObject*，QEvent*）0x10016c648 15 QCoreApplication:：notifyInternal（QObject*，QEvent*）QCoreApplication:：notifyInternal（QObject*，QEvent*）0x100fe1d83 16 QGuiApplicationPrivate:：processTouchEvent（QWindowsSystemInterfacePrivate:：TouchEvent*）QGuiApplicationPrivate:：processTouchEvent（QWindowsSystemInterfacePrivate:：TouchEvent*）0x10081eb09 17 QGuiApplicationPrivate:：ProcessWindowsSystemEvent（QWindowsSystemInterfacePrivate:：WindowsSystemEvent*）QGuiApplicationPrivate:：ProcessWindowsSystemEvent（QWindowsSystemInterfacePrivate:：WindowsSystemEvent*）0x10081bc69 18 QWindowsSystemInterface:：SendWindowsSystemEvents（QFlags）QWindowsSystemInterface:：SendWindowsSystemEvents（QFlags）0x1008092da 19 QCocoaEventDispatcherPrivate:：postedEventsSourceCallback（void*）QCocoaEventDispatcherPrivate:：postedEventsSourceCallback（void*）0x1033b0411 20 \uuuuCFRUNLOOP\uuuuuuuuuuuuuuuuuuuuCFRUNLOOP\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuCFRUNLOOP\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu 21 uuu CFRunLoopDoSources0 uuu CFRunLoopDoSources0 0x7fff895da94d 22 \uuuu CFRunLoopRun \uuuu CFRunLoopRun 0x7fff895d9f7f 23 cfrunloopspecific cfrunloopspecific 0x7fff895d9998 24 RunCurrentEventLoopInMode RunCurrentEventLoopInMode 0x7fff880a27df 25 ReceiveNextEventCommon ReceiveNextEventCommon 0x7fff880a245e 26 _blockuntinexteventmatchinglistinmodewithfilter _blockuntinexteventmatchinglistinmodewithfilter0x7FFF880A239B 27 _dpsnextent _dpsnextent0x7FFF8B739A6D 28-[NSApplication NextEventMachingmask:untilDate:inMode:dequeue:][NSApplication NextEventMachingmask:untilDate:inMode:dequeue:]0x7fff8b739220 29-[NSApplication run]-[NSApplication run]0x7fff8b72d0c3 30 QCocoaEventDispatcher:：processEvents（QFlags）QCocoaEventDispatcher:：processEvents（QFlags）0x1033af2fd 31 QEventLoop:：exec（QFlags）QEventLoop:：exec（QFlags）0x100fdf37d 32 QCoreApplication:：exec（）QCoreApplication:：exec（）0x100fe235a 33 main.cpp 100 0x100004b82 34开始0x10000414
听起来像是一个bug。我会在Qt bugtracker中报告一个这样的bug，举一个最小的例子。你能用最小的代码重现这个问题吗？这将证明它不是由您的一些代码引起的，这些代码是您没有想到的。
qgraphicscene
是否包含一些可聚焦项？在该方法中设置断点并重现问题。当程序停止时，检查调用堆栈是否包含任何干扰。将此调用堆栈粘贴到您的问题。堆栈跟踪中唯一奇怪的是从未调用QGUI应用程序私有：：processTouchEventQWindow:：touchEvent（），并且焦点小部件的Qt:：WA_AcceptTouchEvents为false。