Question about QAbstractItemModel::canDropMimeData()
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In my custom model's implementation of
dropMimeData():Do I need to call
canDropMimeData()myself before proceeding with the actual implementation, or can I assume that the underlying framework has already called this before it callsdropMimeData()?My custom model has its own implementation of
canDropMimeData(). -
canDropMimeData() is there to see if a drop can occour - if it returns false dropMimeData() will not be called (otherwise canDropMimeData() would be useless).
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canDropMimeData() is there to see if a drop can occour - if it returns false dropMimeData() will not be called (otherwise canDropMimeData() would be useless).
@christian-ehrlicher : Thanks for the clear explanation. It is logical that the framework would call this function at some point. But I could not find any place in the Qt source code where
QTableViewor one of the other item view classes actually calls this. Can anyone please point it out? -
It's the base class which is calling the function. See https://code.woboq.org/qt5/qtbase/src/widgets/itemviews/qabstractitemview_p.h.html#_ZN24QAbstractItemViewPrivate7canDropEP10QDropEvent
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It's the base class which is calling the function. See https://code.woboq.org/qt5/qtbase/src/widgets/itemviews/qabstractitemview_p.h.html#_ZN24QAbstractItemViewPrivate7canDropEP10QDropEvent
@christian-ehrlicher : Excellent ... thank you!
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It's the base class which is calling the function. See https://code.woboq.org/qt5/qtbase/src/widgets/itemviews/qabstractitemview_p.h.html#_ZN24QAbstractItemViewPrivate7canDropEP10QDropEvent
@christian-ehrlicher : And thanks for the link to the fantastic woboq.org site which was new to me. All the sources are hyperlinked, so it is very easy to navigate!
