prawnpdf/prawn

# frozen_string_literal: true

require 'prawn/manual_builder'

Prawn::ManualBuilder::Chapter.new do
  title 'Page Margins'

  text do
    prose <<~TEXT
      The default margin for pages is 0.5 inch but you can change that with the
      <code>:margin</code> option or if you'd like to have different margins
      you can use the <code>:left_margin</code>, <code>:right_margin</code>,
      <code>:top_margin</code>, <code>:bottom_margin</code> options.

      These options are available both for starting new pages and creating new
      documents.
    TEXT
  end

  example eval: false, standalone: true do
    Prawn::Document.generate('example.pdf', margin: 100) do
      text '100 pts margins.'
      stroke_bounds

      start_new_page(left_margin: 300)
      text '300 pts margin on the left.'
      stroke_bounds

      start_new_page(top_margin: 300)
      text '300 pts margin both on the top and on the left. Notice that whenever ' \
        'you set an option for a new page it will remain the default for the ' \
        'following pages.'
      stroke_bounds

      start_new_page(margin: 50)
      text '50 pts margins. Using the margin option will reset previous specific ' \
        'calls to left, right, top and bottom margins.'
      stroke_bounds

      start_new_page(margin: [50, 100, 150, 200])
      text 'There is also the shorthand CSS like syntax used here.'
      stroke_bounds
    end
  end
end