SassyTomato Timer (for pomodoros)

tomato.rb

Shoes.app :height => 215, :width => 215, :title => "SassyTomato" do
  background pink

  @time_to_start = Time.new
  @stopped = true

  def timer_button(args)
    button args[:name] do
      @time_to_stop = Time.now + args[:minutes] * 60 + 0.05
      run
    end
  end

  flow do
    stack :margin => [10, 45, 0, 0], :width => 75 do
      image "http://i.imgur.com/NgtbE.jpg"
    end

    stack :margin => 10, :width => -75 do
      edit_line(text = "current task", width: 100)

      timer_button(name: "Start",       minutes: 25)
      timer_button(name: "Short Break", minutes: 5)
      timer_button(name: "Long Break",  minutes: 15)

      stop_button = button "Stop"
      stop_button.click { stop }
    end

    flow :align => "center" do
      @label = para "Press start."
    end
  end

  def run
    @stopped = false
    every 1 do
      return if @stopped
      stop   if Time.now > @time_to_stop

      tick
    end
  end

  def stop
    @stopped = true
    @label.replace "Done!"
  end

  def tick
    time_left = @time_to_stop - Time.now
    minutes   = (time_left / 60).to_i
    seconds   = "%02d" % (time_left % 60).to_i

    @label.replace "#{minutes}:#{seconds} remaining."
  end
end