Class: Prawml::PDF

Inherits:
Object
  • Object
show all
Defined in:
lib/prawml.rb

Constant Summary collapse

SYMBOLOGIES = 
{
  "bookland" => "Bookland",
  "code_128" => "Code128",
  "code_25" => "Code25",
  "code_25_iata" => "Code25IATA",
  "code_25_interleaved" => "Code25Interleaved",
  "code_39" => "Code39",
  "code_93" => "Code93",
  "data_matrix" => "DataMatrix",
  "ean_13" => "EAN13",
  "ean_8" => "EAN8",
  "gs1_128" => "GS1128",
  "pdf_417" => "Pdf417",
  "qr_code" => "QrCode",
  "upc_supplemental" => "UPCSupplemental"
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(yaml, options = {}) ⇒ PDF

Returns a new instance of PDF.



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# File 'lib/prawml.rb', line 31

def initialize(yaml, options = {})
    raise "You must pass a valid YAML file or a string with YAML to generate PDF." if yaml.empty?

    begin
      rules = File.open(yaml)
    rescue
      rules = yaml
    end
    @rules = YAML::load(rules)

    @options = {
      :page_size => "A4",
      :page_layout => :portrait
    }.merge options

    template = @options[:template]
    @options.delete(:template)
	
    @pdf = Prawn::Document.new @options

    unless template.nil?
      draw_image template[:path], [template[:x], template[:y], {:width => template[:width], :height => template[:height]}]
    end
end

Instance Attribute Details

#pdf ⇒ Object (readonly)

Returns the value of attribute pdf.



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# File 'lib/prawml.rb', line 12

def pdf
  @pdf
end

Instance Method Details

#generate(collection) ⇒ Object 



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# File 'lib/prawml.rb', line 56

def generate(collection)
    defaults = {
        :style => :normal,
        :size => 12,
        :align => :left,
        :format => false,
        :font => 'Times-Roman',
        :type => :text,
        :color => '000000',
        :fixed => false
    }

    @rules.each do |field, draws|
        unless draws[0].is_a? Array
          draws = [draws]
        end

        draws.each do |params|
          params[2] = defaults.merge(params[2] || {})
          params[2].symbolize_keys!
          params[2][:style] = params[2][:style].to_sym

          set_options params[2]

         value = collection.respond_to?(field.to_sym) ? collection.send(field.to_sym) : collection[field.to_sym]

          send :"draw_#{params[2][:type]}", value, params unless value.nil?
        end
    end

    @pdf
end