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Contents
require "zebra/zpl/printable"
module Zebra
module Zpl
class Datamatrix
include Printable
class InvalidOrientationError < StandardError; end
class InvalidQualityFactorError < StandardError; end
class InvalidSizeError < StandardError; end
class InvalidFormatError < StandardError; end
class InvalidRatioError < StandardError; end
attr_reader :symbol_height, :columns, :rows, :format, :aspect_ratio, :width
attr_accessor :escape_sequence
def width=(width)
@width = width || 0
end
def orientation=(value)
raise InvalidOrientationError unless %w[N R I B].include?(value)
@orientation = value
end
def orientation
@orientation || 'N'
end
def symbol_height=(height)
@symbol_height = height
end
def quality=(level)
raise InvalidQualityFactorError unless [0, 50, 80, 100, 140, 200].include?(level.to_i)
@quality = level
end
def quality
@quality || 200
end
def columns=(n)
raise InvalidSizeError unless (9..49).include?(n.to_i)
@columns = n
end
def rows=(n)
raise InvalidSizeError unless (9..49).include?(n.to_i)
@rows = n
end
def format=(value)
raise InvalidFormatError unless (0..6).include?(value.to_i)
@format = value
end
def aspect_ratio=(value)
raise InvalidRatioError unless [1, 2].include?(value.to_i)
@aspect_ratio = value
end
def to_zpl
check_attributes
"^FW#{rotation}^FO#{x},#{y}^BY,,10^BX#{orientation},#{symbol_height},#{quality},#{columns},#{rows},#{format},#{escape_sequence},#{aspect_ratio}^FD#{data}^FS"
end
private
def check_attributes
super
raise MissingAttributeError.new("the symbol height to be used is not given") unless @symbol_height
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems