C++ : Qt: resize a QGraphicsItem (boundingRect()) into a QGraphicsScene with the mouse

C++ : Qt: resize a QGraphicsItem (boundingRect()) into a QGraphicsScene with the mouse
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C++ : Qt: resize a QGraphicsItem (boundingRect()) into a QGraphicsScene with the mouse
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a mouse QGraphicsScene with a into the QGraphicsItem resize (boundingRect()) : C++ Qt:

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