simplifying_fidgit_api.rb

# Setup window components within 
# Current FXRubyified system managing nesting manually.
def setup
  main_packer = VerticalPacker.new(container, padding: 0) do |packer|
    label = Label.new(packer, text: "Hello!")
    10.times do |i|
      Button.new(packer, text: i.to_s) do |button|
        button.subscribe :clicked_left_mouse_button do |sender, x, y|
          label.text = "Pressed #{sender.text.to_i}"
        end
      end 
    end
  end

  # Later
  @my_slider = Slider.new(main_packer, range: 1..100) do |slider|
     slider.subscribe :changed do |sender, value|
      # Handle changed event
    end
  end

  # Later
  @my_slider.subscribe :changed do |sender, value|
    # Handle changed event  
  end
end

# API trimmed to death / Shoesified?
def setup
  main_packer = pack :vertical, padding: 0 do # Push the container.
    my_label = label(text: "Hello!") # Add a label to the current container.
    10.times do |i|
      button(text: i.to_s) do |sender, x, y| # Assume this is adding a click handler.
        my_label.text = "Pressed #{sender.text.to_i}"
      end 
    end
  end # Push the packer onto the container stack.

  # Later
  inside main_packer do
    @my_slider = slider range: 1..100 do |sender, value|
      # Handle changed event
    end
  end

  # Later
  @my_slider.subscribe do |sender, value| # Assume :changed as the default event.
    # Handle changed event  
  end
end