I've been playing with QGraphicsTextItem to display editable property texts of the components(QGraphicsItems). I found this helpful.
But unfortunately now the shortcut assigned to one of QAction interferes while editing text in textitem.
That QAction is assigned to delete key whose job is to delete selected components.
Because of this delete key doesn't work in the edit which triggers the action instead.
ShortcutContexts were helpless here. I can't even use grabKeyboard() since it is not a widget.

Please do help me solve this problem.