A simple timer for the pomodoro technique, written using Shoes.

pomo_timer.rb

# http://www.pomodorotechnique.com/

Shoes.app :width => 200, :height => 150, :resizable => false, :title => 'Pomo!' do
  def update_time!
    @timer_display.text = '%02d:%02d' % [@seconds / 60, @seconds % 60]
  end
    
  background whitesmoke
  paused = true
  @seconds = 0.0
  
  @timer_display = para '00:00', :size => 58
  start_button = button 'start', :width => '33%' do
    paused = false
  end
  pause_button = button 'pause', :width => '33%' do
    paused = true
  end
  reset_button = button 'reset', :width => '33%' do 
    @seconds = 0.0
    update_time!
  end

  animate(1) do
    @seconds += 1 unless paused
    update_time!
    if @seconds >= 1500
      paused = true
      if @timer_display.style[:stroke] == black
        @timer_display.style :stroke => whitesmoke
      else
        @timer_display.style :stroke => black
      end
    end
  end
end