[Interest] QFile/QDir: force move mode only?

[Alexander Dyagilev]

Hello,

QFile/QDir rename function copies file in the case it's not possible to 
just move it.

Is there a  way to learn in advance what type of operation will occur?

Let's suppose I have 10GB file. In case of copy, I would definitely like 
to use my own copy function and show UI with the progress of the operation.

And of course I do not want to use my copy function always if the fast 
move is available.