[Development] Qt 5.10 : arrow keys not working in QGraphicsProxyWidget

[wim delvaux]

Hi all,

To cut it short (too short ?) I have QLineEdit and QListWidget widgets
embedded in a
QGraphicsScene.

Interacting works partially : Mouse clicking and mouse dragging works
(selection of QLineEdit/item in QListWidget, using scrollbars)

What does not work (anywhere) is using the arrow keys.  So when a QLineEdit
it selected (I can see the highlight of the LE plus I can type in chars) I
cannot move back to previous chars using the left arrow key.  Also in the
QListWidget I cannot scroll inside the content of the LW using the up/down
arrow keys.

AFAIK I have not set any special options when adding the widgets.  I use
the QGraphicsScene::addWidget method to add the widget (and not the new
QGraphicsProxyWidget, QGraphicsProxyWidget::setWidget and then the
QGraphicsScene::addItem method as this seems to break embedding completely
such that even mouse interaction is erroneous)

What could be wrong ?

Thx

W
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