Connect 2 custom movable QGraphicsItems with an auto adjustable multiline

[ppetukhov]

Hello there ;)

Right now I am doing a custom project and using DIagram Scene as a reference. That's all coming ok but I need to connect my custom QGraphicsItems in a special way.
So here how it should look like:

Move left item a little bit on top and right

So as you can see lines stay only vertical and horizontal position. Is it possible to achieve such a behavior with
QGraphicsPathItem or should I use something else?

Also I want to implement a feature to show points from where connection could be possible. So if a user clicks this point and drags it to the point on the other item a line will be drawn.
It should look like this example from Visio: