Class: RqrcodePngBin::App

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv = []) ⇒ App

Returns a new instance of App.



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# File 'lib/rqrcode_png_bin/app.rb', line 6

def initialize(argv = [])
  @argv   = argv
  @size   = 4
  @level  = :m
  @canvas = nil

  parser.parse!(@argv)
end

Instance Attribute Details

#canvas ⇒ Object (readonly)

Returns the value of attribute canvas.



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# File 'lib/rqrcode_png_bin/app.rb', line 14

def canvas
  @canvas
end

#level ⇒ Object (readonly)

Returns the value of attribute level.



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# File 'lib/rqrcode_png_bin/app.rb', line 14

def level
  @level
end

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/rqrcode_png_bin/app.rb', line 14

def size
  @size
end

Instance Method Details

#opts ⇒ Object

return

Hash



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# File 'lib/rqrcode_png_bin/app.rb', line 37

def opts
  h = {
    :size  => @size,
    :level => @level
  }
end

#parser ⇒ Object

return

OptionParser



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# File 'lib/rqrcode_png_bin/app.rb', line 47

def parser
  OptionParser.new do |opt|
    opt.version = VERSION
    opt.banner  = "Usage: rqrcode_png [option] string"
    opt.on('-s', '--size SIZE (default 4)') {|v|
      re = %r{\A[0-9]+\z}

      if v =~ re
        @size = v.to_i
      else
        raise ArgumentError, "option size should match #{re}"
      end
    }
    opt.on('-l', '--level LEVEL (default m)') {|v|
      options = %w(l m q h)

      if options.include?(v)
        @level = v.to_sym
      else
        raise ArgumentError, "option level should be included #{options}"
      end
    }
    opt.on('-c', '--canvas CANVAS (ex 200x200)') {|v|
      re = %r{\A([0-9]+)x([0-9]+)\z}

      if v =~ re
        @canvas = [$1.to_i, $2.to_i]
      else
        raise ArgumentError, "option canvas should match #{re}"
      end
    }
  end
end

#run ⇒ Object 



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# File 'lib/rqrcode_png_bin/app.rb', line 16

def run
  if str
    png = RQRCode::QRCode.new(str, opts).to_img
    png = png.resize(*canvas) if canvas

    STDOUT.puts png
  else
    STDERR.puts "rqrcode_png #{VERSION}", nil, parser.help
  end
end

#str ⇒ Object

return

String



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# File 'lib/rqrcode_png_bin/app.rb', line 30

def str
  str = @argv.first
end