Source Code

# frozen_string_literal: true

#--
# SPDX-FileCopyrightText: 2026 Kerrick Long <me@kerricklong.com>
# SPDX-License-Identifier: MIT-0
#++

$LOAD_PATH.unshift File.expand_path("../../lib", __dir__)

require "ratatui_ruby"

class VerifyQuickstartLayout
  def run
    RatatuiRuby.run do |tui|
      # [SYNC:START:main]
      loop do
        tui.draw do |frame|
          # 1. Split the screen
          top, bottom = tui.layout_split(
            frame.area,
            direction: :vertical,
            constraints: [
              tui.constraint_percentage(75),
              tui.constraint_percentage(25),
            ]
          )

          # 2. Render Top Widget
          frame.render_widget(
            tui.paragraph(
              text: "Hello, Ratatui!",
              alignment: :center,
              block: tui.block(title: "Content", borders: [:all], border_style: { fg: "cyan" })
            ),
            top
          )

          # 3. Render Bottom Widget with Styled Text
          # We use a Line of Spans to style specific characters
          text_line = tui.text_line(
            spans: [
              tui.text_span(content: "Press '"),
              tui.text_span(
                content: "q",
                style: tui.style(modifiers: [:bold, :underlined])
              ),
              tui.text_span(content: "' to quit."),
            ],
            alignment: :center
          )

          frame.render_widget(
            tui.paragraph(
              text: text_line,
              block: tui.block(title: "Controls", borders: [:all])
            ),
            bottom
          )
        end

        case tui.poll_event
        in { type: :key, code: "q" }
          break
        else
          # Ignore other events
        end
      end
      # [SYNC:END:main]
    end
  end
end

VerifyQuickstartLayout.new.run if __FILE__ == $PROGRAM_NAME