deffo a penalty....

the missus had taped the game for me so, when I got home, I checked it out and I reckon it was stonewall.

not saying Ronaldo dived but, why don't refs ever book the striker for diving AND award a penalty?
in last night's case, he obviously thought Ronnie dived but, surely it was still obviously a pen from where he was stood.
so, if the player is fouled, but makes the most of it with a theatrical dive, the correct decision must be to 1) book the striker for diving, 2) send the keeper off for the proffesional foul and 3) give the pen.