89 lines
2.4 KiB
Ruby
89 lines
2.4 KiB
Ruby
require "prawn/measurement_extensions"
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class OrderPdf < Prawn::Document
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include ActionView::Helpers::NumberHelper
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def initialize(order, options = {})
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options[:page_size] ||= FoodsoftConfig[:pdf_page_size] || "A4"
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#options[:left_margin] ||= 40
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#options[:right_margin] ||= 40
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options[:top_margin] ||= 50
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#options[:bottom_margin] ||= 40
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super(options)
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@order = order
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@options = options
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@first_page = true
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end
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def to_pdf
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font_size fontsize(12)
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# Define header
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repeat :all, dynamic: true do
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s = fontsize(8)
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# header
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bounding_box [bounds.left, bounds.top+s*2], width: bounds.width, height: s*1.2 do
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text title, size: s, align: :center if title
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end
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# footer
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bounding_box [bounds.left, bounds.bottom-s], width: bounds.width, height: s*1.2 do
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text I18n.t('lib.order_pdf.page', number: page_number, count: page_count), size: s, align: :right
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end
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bounding_box [bounds.left, bounds.bottom-s], width: bounds.width, height: s*1.2 do
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text I18n.l(Time.now, format: :long), size: s, align: :left
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end
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end
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body # Add content, which is defined in subclasses
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render # Render pdf
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end
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# Helper method to test pdf via rails console: OrderByGroups.new(order).save_tmp
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def save_tmp
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File.open("#{Rails.root}/tmp/#{self.class.to_s.underscore}.pdf", 'w') {|f| f.write(to_pdf.force_encoding("UTF-8")) }
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end
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# XXX avoid underscore instead of unicode whitespace in pdf :/
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def number_to_currency(number, options={})
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super(number, options).gsub("\u202f", ' ') if number
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end
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# return fontsize after scaling it with any configured factor
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# please use this wherever you're setting a fontsize
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def fontsize(n)
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if FoodsoftConfig[:pdf_font_size]
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n * FoodsoftConfig[:pdf_font_size].to_f/12
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else
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n
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end
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end
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# add pagebreak or vertical whitespace, depending on configuration
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def down_or_page(space=10)
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if @first_page
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@first_page = false
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return
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end
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if pdf_add_page_breaks?
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start_new_page
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else
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move_down space
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end
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end
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protected
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# return whether pagebreak or vertical whitespace is used for breaks
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def pdf_add_page_breaks?(docid=nil)
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docid ||= self.class.name.underscore
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cfg = FoodsoftConfig[:pdf_add_page_breaks]
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if cfg.is_a? Array
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cfg.index(docid.to_s).any?
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elsif cfg.is_a? Hash
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cfg[docid.to_s]
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else
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cfg
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end
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end
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end
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