Is it possible to emulate the Gamecube controller perfectly?

[Stefan]

Thanks Jhonn I now see the options Constant, Ramp, Square, Sine, Triangle, Sawtooth Up, and Sawtooth Down.
However when I press test after selecting Constant, Ramp or Sine there is no response.
When I try Square, Triangle, Sawtooth Up or Sawtooth Down it causes Dolphin to crash.