Class: Asciidoctor::Diagram::BarcodeConverter

Inherits:
Object
  • Object
show all
Includes:
DiagramConverter
Defined in:
lib/asciidoctor-diagram/barcode/converter.rb

Constant Summary collapse

BARCODE_TYPES = 
[
  :bookland,
  :codabar,
  :code25,
  :code25iata,
  :code25interleaved,
  :code39,
  :code93,
  :code128,
  :code128a,
  :code128b,
  :code128c,
  :ean8,
  :ean13,
  :gs1_128,
  :qrcode,
  :upca,
]

Instance Method Summary collapse

Methods included from DiagramConverter

#native_scaling?, #wrap_source

Instance Method Details

#collect_options(source) ⇒ Object 



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# File 'lib/asciidoctor-diagram/barcode/converter.rb', line 33

def collect_options(source)
  options = {}

  options[:xdim] = source.attr('xdim')
  options[:ydim] = source.attr('ydim')
  options[:margin] = source.attr('margin')
  options[:height] = source.attr('height')
  options[:foreground] = source.attr('foreground')
  options[:background] = source.attr('background')

  [:xdim, :ydim, :margin, :height].each { |o| options[o] = options[o].to_i if options[o] }

  options
end

#convert(source, format, options) ⇒ Object 



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# File 'lib/asciidoctor-diagram/barcode/converter.rb', line 48

def convert(source, format, options)
  BarcodeDependencies::BARCODE_DEPENDENCIES.each_pair { |n, v| source.ensure_gem(n, v) }
  require 'barby'

  code = source.code
  type = source.config[:type]

  begin
    case type
      when :bookland
        require 'barby/barcode/bookland'
        barcode = Barby::Bookland.new(code)
      when :codabar
        require 'barby/barcode/codabar'
        barcode = Barby::Codabar.new(code)
      when :code25
        require 'barby/barcode/code_25'
        barcode = Barby::Code25.new(code)
      when :code25iata
        require 'barby/barcode/code_25_iata'
        barcode = Barby::Code25IATA.new(code)
      when :code25interleaved
        require 'barby/barcode/code_25_interleaved'
        barcode = Barby::Code25Interleaved.new(code)
      when :code39
        require 'barby/barcode/code_39'
        barcode = Barby::Code39.new(code)
      when :code93
        require 'barby/barcode/code_93'
        barcode = Barby::Code93.new(code)
      when :code128
        require 'barby/barcode/code_128'
        barcode = Barby::Code128.new(code)
      when :code128a
        require 'barby/barcode/code_128'
        barcode = Barby::Code128A.new(code)
      when :code128b
        require 'barby/barcode/code_128'
        barcode = Barby::Code128B.new(code)
      when :code128c
        require 'barby/barcode/code_128'
        barcode = Barby::Code128C.new(code)
      when :ean8
        require 'barby/barcode/ean_8'
        barcode = Barby::EAN8.new(code)
      when :ean13
        require 'barby/barcode/ean_13'
        barcode = Barby::EAN13.new(code)
      when :gs1_128
        require 'barby/barcode/code_128'
        gs1_code = code.gsub /\([^)]+\)/ do |control|
          case control.upcase
            when '(FNC1)'
              Barby::Code128::FNC1
            when '(FNC2)'
              Barby::Code128::FNC2
            when '(FNC3)'
              Barby::Code128::FNC3
            when '(FNC4)'
              Barby::Code128::FNC4
            when '(CODEA)'
              Barby::Code128::CODEA
            when '(CODEB)'
              Barby::Code128::CODEB
            when '(CODEC)'
              Barby::Code128::CODEC
            when '(SHIFT)'
              Barby::Code128::SHIFT
            when '(SP)'
              ' '
            else
              control
          end
        end
        gs1_code = gs1_code.gsub(/\s+/, '')
        gs1_code = gs1_code.prepend(Barby::Code128::FNC1) unless gs1_code[0] == Barby::Code128::FNC1
        barcode = Barby::Code128.new(gs1_code)
      when :qrcode
        BarcodeDependencies::QRCODE_DEPENDENCIES.each_pair { |n, v| source.ensure_gem(n, v) }
        require 'barby/barcode/qr_code'
        barcode = Barby::QrCode.new(code)
      when :upca
        require 'barby/barcode/ean_13'
        barcode = Barby::UPCA.new(code)
      else
        raise "Unsupported barcode type: #{type}"
    end
  rescue ArgumentError
    raise "Invalid #{type} data"
  end

  case format
    when :png
      BarcodeDependencies::PNG_DEPENDENCIES.each_pair { |n, v| source.ensure_gem(n, v) }
      require 'barby/outputter/png_outputter'
      require 'chunky_png/color'
      options[:foreground] = ChunkyPNG::Color(options[:foreground]) if options[:foreground]
      options[:background] = ChunkyPNG::Color(options[:background]) if options[:background]
      barcode.to_png(options)
    when :svg
      require_relative 'svg_outputter'
      options[:title] = code
      options[:foreground] = "##{options[:foreground]}" if options[:foreground] =~ /^[0-9a-f]+$/i
      options[:background] = "##{options[:background]}" if options[:background] =~ /^[0-9a-f]+$/i
      barcode.to_svg(options)
    when :txt
      require 'barby/outputter/ascii_outputter'
      barcode.to_ascii
    else
      raise "Unsupported format: #{format}"
  end
end

#supported_formats ⇒ Object 



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# File 'lib/asciidoctor-diagram/barcode/converter.rb', line 29

def supported_formats
  [:svg, :png, :txt]
end