QGraphicsItem move only on certain condition

[wysota]

QGraphicsItem::itemChange()

[pratham_shah]

Thanks for quick reply.

But I have another problem that how will the resize rect objects know about the aspect ratio being maintained. Maintaining the aspect ratio is the property of the associated QGraphicsItem. So how will the item change know that what position to consider invalid.
If I use the item change of the custom QGraphicsItem and set the resize points position on geometry change would still lead to the same issue.

Maybe will need to change the architecture. Is there any other solution ??

[wysota]

"Teach" your handle objects about it. Or use itemChange() on the main object.