Slicing QGraphicsItem

[Ilan]

I have an item inherited from QGraphicsItem
I draw in the item (using QPainterPath)
Then I want to do 2 things:
Scale the item so that the QPainterPath boundaries will have the item size
Resize the item to the original size so that it will include only the QPainterPath
I managed to do the first mission using transform
How can I set the item's boundaries to that of the enlarged QPainterPath

[Ilan]

@Ilan said in Slicing QGraphicsItem:

I have an item inherited from QGraphicsItem
I draw in the item (using QPainterPath)
Then I want to do 2 things:
Scale the item so that the QPainterPath boundaries will have the item size
Resize the item to the original size so that it will include only the QPainterPath
I managed to do the first mission using transform
How can I set the item's boundaries to that of the enlarged QPainterPath
Here is the code I tried

def updateTransform(self):
        self.dx = self.boundingRect().width()/self.charPath.boundingRect().width()
        self.dy = self.boundingRect().height()/self.charPath.boundingRect().height()
        transform = self.transform()
        transform.scale(self.dx,self.dy)
        self.setTransform(transform)
        self.prepareGeometryChange()
        # scene bounding rect
        self.rect = self.charPath.boundingRect()
        self.rect = self.mapToScene(self.rect)
        self.rect = self.rect.boundingRect()
        self.rect.setWidth(self.rect.width() / self.dx)
        self.rect.setHeight(self.rect.height() / self.dy)
        

    def sceneBoundingRect(self):
        return self.rect

Thanks,
Ilan