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# frozen_string_literal: true
# The <code>repeat</code> method is quite versatile when it comes to define
# the intervals at which the content block should repeat.
#
# The interval may be a symbol (<code>:all</code>, <code>:odd</code>,
# <code>:even</code>), an array listing the pages, a range or a
# <code>Proc</code> that receives the page number as an argument and should
# return true if the content is to be repeated on the given page.
#
# You may also pass an option <code>:dynamic</code> to reevaluate the code block
# on every call which is useful when the content changes based on the page
# number.
#
# It is also important to say that no matter where you define the repeater it
# will be applied to all matching pages.
require_relative '../example_helper'
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::ManualBuilder::Example.generate(filename) do
repeat(:all) do
draw_text 'All pages', at: bounds.top_left
end
repeat(:odd) do
draw_text 'Only odd pages', at: [0, 0]
end
repeat(:even) do
draw_text 'Only even pages', at: [0, 0]
end
repeat([1, 3, 7]) do
draw_text 'Only on pages 1, 3 and 7', at: [100, 0]
end
repeat(2..4) do
draw_text 'From the 2nd to the 4th page', at: [300, 0]
end
repeat(->(pg) { (pg % 3).zero? }) do
draw_text 'Every third page', at: [250, 20]
end
repeat(:all, dynamic: true) do
draw_text page_number, at: [500, 0]
end
10.times do
start_new_page
draw_text 'A wonderful page', at: [400, 400]
end
end
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