Does a shower drain have to run vertical to the trap?

thanks in advance for any input. I am running 2" drain line on the first floor with open basement access from below. About 7-8" directly below where the shower drain is to come through the floor is a copper supply line. My question is if is is okay to use 2 45's back to back as in the picture to give me the offset needed. The 2" from the drain would be on top and the p trap at the bottom of the picture. I can replumb the existing copper if need be, but if this is okay it would be quicker.

Thanks,
ET

edit: picture didn't load.

 

thanks for the reply hj. I am going to try and get the straight pipe in there if there is enough play but nice to know this is an option if I don't want to repipe.

 

use two street 45 degrees and roll them to wbere open end is up to the drain. this creates less angle if needed. the shower gasket will fit on male end of the street fitting