Handle collision via Signal?

[Rhadel]

Hi,

For now, I capture "mouseMoveEvent" to check if selected QGraphicsItem collides with another QGraphicsItem in my scene. It doesn't seem like a good way to handle collision. I'm not able to find a signal (maybe a signal triggered when an item has collided with other one) to handle a collision between items only when a collision is produced.

Any suggestion?