Rotation of a sprite that has a SubRect renders incorrectly

[Ghabry]

That's a problem when spritesheets (cough New RPG2k3 version cough) are involved. During a rotation the parts of the sprite that are not in the rect are visible:

And the following lines in game_picture.cpp are wrong when a SubRect is involved (the pivot is placed incorrectly)

sprite->SetOx((int)(sprite->GetBitmap()->GetWidth() / 2));
sprite->SetOy((int)(sprite->GetBitmap()->GetHeight() / 2));

Code to fix the pivot:

sprite->SetOx((int)(sprite->GetWidth() / 2 + sprite->GetSrcRect().x));
sprite->SetOy((int)(sprite->GetHeight() / 2 + sprite->GetSrcRect().y));