# File gtk/sample/testgtk/scrolledwindow.rb, line 36
  def initialize
    super("dialog")

    scrolled_window = Gtk::ScrolledWindow.new
    scrolled_window.border_width = 10
    scrolled_window.set_policy(Gtk::POLICY_AUTOMATIC,
                               Gtk::POLICY_AUTOMATIC)
    vbox.add(scrolled_window)

    table = Gtk::Table.new(20, 20, false)
    table.row_spacings = 10
    table.column_spacings = 10
    scrolled_window.add_with_viewport(table)

    table.focus_hadjustment = scrolled_window.hadjustment
    table.focus_vadjustment = scrolled_window.vadjustment

    for i in 0..19
      for j in 0..19
        buffer = "button (#{i},#{j})"
        button = Gtk::ToggleButton.new(buffer)
        table.attach(button, i, i + 1, j, j + 1)
      end
    end

    button = Gtk::Button.new("close")
    button.signal_connect("clicked"){destroy}
    action_area.pack_start(button, true, true, 0)

    set_default_size(300, 300)
  end