This link is to Silkcoin github, check cpp file with wallet look: https://github.com/shnurf/silkcoin/blob/master/src/qt/bitcoingui.cpp
it is based on BTC wallet, so all wallet are copy paste with some small modifications. Do you know what open source is? Do you know how is it working? Do not think so. If you want to have coin build from scratch than you will have to wait years because in this situation you cannot use any libs, any algos, nothing at all. It is almost impossible now. Untill people will not understand that stuff like wallet is only tool ALTs are in shit.

SilkCoin cpp file header(wallet gui part):