client.rb

require 'eventmachine'
require 'Qt4'
require 'emdrb'
require './client_ui'

$time_remaining ||= Time.new(0,1,1,1)
$time_used ||= Time.new(0)

class ClientController
  def initialize
  end

  def time_remaining
    $time_remaining
  end

  def time_remaining=(time)
    $time_remaining = time
  end

  def time_used
    $time_used
  end

  def time_used=(time)
    $time_used = time
  end

  def open_session
  end

  def close_session
  end

  def status
    'Available'
  end

  def get_ip
    puts 'you asked for ip'
    '1.2.3.4'
  end
end

def initialize_ui
  $app = Qt::Application.new(ARGV)
  $ui = Ui::MainWindow.new
  $window = Qt::MainWindow.new
  $ui.setup_ui($window)
  $window.show

  $ui.pushButton.connect(SIGNAL :clicked) { puts $server.foo rescue puts 'bar' }
end

initialize_ui

#  EventMachine::start_server 'localhost', 8888, Control

SERVER_URI = 'druby://localhost:7777'
EventMachine.run do

  DRb.start_drbserver
  $server = DRbObject.new_with_uri(SERVER_URI)

  EM.add_periodic_timer(1) do
    $time_remaining -= 1
    $time_used += 1
    $ui.lcd_time_remaining.display($time_remaining.strftime("%H:%M:%S"))
    $ui.lcd_time_used.display($time_used.strftime("%H:%M:%S"))
  end

  EM.add_periodic_timer(0.01) do
    $app.process_events
    exit if $window.hidden?
  end
end