Listing 2

user_name.left = 6cm;
user_name.top = 0.3cm;
user_name.width = parent.width - 6.3cm;
user_name.height = 1cm;

password.left = 6cm;
password.top = user_name.top + 0.3cm;
password.width = parent.width - 6.3cm;
password.height = 1cm;

do_login.left = parent.width - 10cm;
do_login.top = 3.6cm;
do_login.width = 3.5cm;
do_login.height = 1cm;
cancel.left = 
  do_login.left + do_login.width + 0.2cm;
cancel.top = do_login.top;
cancel.width = 3.5cm;
cancel.height = 1cm;