gistfile1.rb

module Roguish
  module UI
    class CursesUI
      class Window < Curses::Window
        def paint(contents)
          clear
          contents = contents.split("\n") if contents.respond_to?(:split)
          contents.each_with_index do |line, i|
            setpos(i, 0)
            self << line.to_s
          end
          refresh
        end

        class Bordered
          def initialize(options)
            layout = options[:layout]

            @outer = Window.new(*layout)
            @inner = Window.new(*layout.inner)

            draw_border
            refresh
          end

          def paint(contents)
            @inner.paint(contents)
          end

          def draw_border
            @outer.clear
            @outer.box 0, 0
          end

          def refresh
            @outer.refresh
            @inner.refresh
          end

          def close
            @outer.close
            @inner.close
          end

          def getch
            @outer.getch
          end
        end

        class Titled < Bordered
          def initialize(options)
            title = options.delete(:title)
            super

            set_title title
            refresh
          end

          private

          def set_title(title)
            draw_border
            if title
              @outer.setpos(0, 1)
              @outer << " #{title} "
            end
          end
        end

        class Messages
          def initialize(options)
            layout = options[:layout]
            @message_list = options[:message_list]
            @max_messages = layout.inner.height
            @window = TitledWindow.new title: 'Messages:', layout: layout

            paint
          end

          def paint
            @window.paint @message_list.take(@max_messages)
          end
        end
      end

    end

  end
end