HotCocoa 'Hello World'

require 'hotcocoa'
include HotCocoa
application do |app|
  # setting up our window with
  window :size => [150, 50] do |win|
    # now lets set up our layout
    win.view = layout_view :mode => :horizontal do |layout|
      layout.spacing = 5
      # make a button
      b = button(:title => 'Hi!', :layout => { :align => :center})
      # now create an label for the message
      l = label(:text => "", :layout => { :align => :center, :bottom_padding => 3},
          :bordered => true, :frame => [20,75,75,20])
      # add an action to the button that replaces the empty label with the text hello world. 
      b.on_action {l.text = "hello world!" }
      # insert the button first
      layout << b 
      # now the label
      layout << l
    end
  end
end