Basing on WiringPi I've started to write library to control RaspberryPi GPIO in Qt way. Right now it supports P1 header and prototype of tact switch wrapper with debounce. I'm doing this library as my "learn some electronics" project. In the near future I will extend tact switch support and add hd47780 lcd display support. I hope that someone will find this project usefull or at least find some time to take a look at it and write some suggestions or tips for new features.
Code repository: https://github.com/kklimek/rpifun