require "set"
require "widget"

class Window

  include Widget

  @windows = Set.new

  class << self
    def register(window)
      @windows << window
    end

    def remove(window)
      @windows.delete(window)
    end
  end

  def initialize
    Window.register(self)
    super
    @font = Font.new(Runtime.find(:font, "DejaVuSansMono"), 20)
    @buffer_widget = BufferWidget.new(Buffer.new, @font)
  end

  def close
    Window.remove(self)
  end

  def render
    @buffer_widget.draw
  end

  def resize(x, y, width, height)
    super
    @buffer_widget.resize(x, y, width, height)
  end

end