Sha256: a9ccb83a839f1558eaa73241e8e6b3d368f46b440439b2520f5b75027f53f1b6
Contents?: true
Size: 1.09 KB
Versions: 5
Compression:
Stored size: 1.09 KB
Contents
require "zebra/zpl/printable"
module Zebra
module Zpl
class Qrcode
include Printable
class InvalidScaleFactorError < StandardError; end
class InvalidCorrectionLevelError < StandardError; end
attr_reader :scale_factor, :correction_level, :width
def width=(width)
@width = width || 0
end
def scale_factor=(value)
raise InvalidScaleFactorError unless (1..99).include?(value.to_i)
@scale_factor = value
end
def correction_level=(value)
raise InvalidCorrectionLevelError unless %w[L M Q H].include?(value.to_s)
@correction_level = value
end
def to_zpl
check_attributes
"^FW#{rotation}^FO#{x},#{y}^BY,,10^BQN,2,#{scale_factor},,3^FD#{correction_level}A,#{data}^FS"
end
private
def check_attributes
super
raise MissingAttributeError.new("the scale factor to be used is not given") unless @scale_factor
raise MissingAttributeError.new("the error correction level to be used is not given") unless @correction_level
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems