Class: RQR::QRCode

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

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ QRCode

options :level L:0, M:1(default), Q:2, H:3 :version S:0(default), M:1, L:2 :auto_extend true(default)|false auto extent if over version size :masking masking pattern 0-7, -1(default auto) :length data length :module_size module pixel size :eps_preview true|false(default)



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# File 'lib/rqr/qrcode.rb', line 12

def initialize(options = {})
  @options = { :level => 1, :version => 0, :auto_extend => true, 
               :masking => -1, :eps_preview => false, :module_size => 4 }
   @options.merge!(options)
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/rqr/qrcode.rb', line 46

def close()
  @encoder = nil if @encoder
  @imager = nil if @imager
end

#save(data, path, format = nil) ⇒ Object

data

data for qrcode

path

path for qrcode image file

format

image format. :jpg|:png|:tiff|:eps



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# File 'lib/rqr/qrcode.rb', line 21

def save(data, path, format=nil)
  format ||= get_format(path)

init_encoder(data)

  case format.to_sym
    when :jpg, :jpeg
      res = save_as_jpeg(path)
    when :png
      res = save_as_png(path)
    when :tiff, :tif
      res = save_as_tiff(path)
    when :eps
      res = save_as_eps(path)
    else
      close; raise RQR::FormatNotFoundException.new("invalid format! #{format}")
  end
   
   close
   
   if res != 0
     raise RQR::ImageException.new("qrcode image error! #{path} wasn't created.")
  end
end