graphic.rb in zebra-zpl-1.1.4

- old
+ new
@@ -1,91 +1,93 @@
-require "zebra/zpl/printable"
-
-module Zebra
-  module Zpl
-    class Graphic
-      include Printable
-
-      class InvalidGraphicType < StandardError; end
-      class InvalidLineThickness < StandardError; end
-      class InvalidColorError < StandardError; end
-      class InvalidOrientationError < StandardError; end
-      class InvalidRoundingDegree < StandardError; end
-      class InvalidSymbolType < StandardError; end
-
-      attr_reader :graphic_type, :graphic_width, :graphic_height, :line_thickness, :color, :orientation, :rounding_degree, :symbol_type
-
-      BOX      = "B"
-      CIRCLE   = "C"
-      DIAGONAL = "D"
-      ELLIPSE  = "E"
-      SYMBOL   = "S"
-
-      def graphic_type=(type)
-        raise InvalidGraphicType unless %w(E B D C S).include? type
-        @graphic_type = type
-      end
-
-      def graphic_width=(width)
-        @graphic_width = width
-      end
-
-      def graphic_height=(height)
-        @graphic_height = height
-      end
-
-      def line_thickness=(thickness)
-        raise InvalidLineThickness unless thickness.nil? || thickness.to_i.to_s == thickness.to_s
-        @line_thickness = thickness
-      end
-
-      def color=(value)
-        raise InvalidColorError unless %w[B W].include?(value&.upcase)
-        @color = value
-      end
-
-      def orientation=(value)
-        raise InvalidOrientationError unless %w[R L].include?(value&.upcase)
-        @orientation = value
-      end
-
-      def rounding_degree=(value)
-        raise InvalidRoundingDegree unless (0..8).include?(value.to_i)
-        @rounding_degree = value
-      end
-
-      def symbol_type=(value)
-        raise InvalidSymbolType unless %w[A B C D E].include?(value.upcase)
-        @symbol_type = value
-      end
-
-      def to_zpl
-        check_attributes
-        graphic = case graphic_type
-        when "B"
-          "B#{graphic_width},#{graphic_height},#{line_thickness},#{color},#{rounding_degree}"
-        when "C"
-          "C#{graphic_width},#{line_thickness},#{color}"
-        when "D"
-          "D#{graphic_width},#{graphic_height},#{line_thickness},#{color},#{orientation}"
-        when "E"
-          "E#{graphic_width},#{graphic_height},#{line_thickness},#{color}"
-        when "S"
-          sym = !symbol_type.nil? ? "^FD#{symbol_type}" : ''
-          "S,#{graphic_height},#{graphic_width}#{sym}"
-        end
-        "^FW#{rotation}^FO#{x},#{y}^G#{graphic}^FS"
-      end
-
-      private
-
-      def has_data?
-        false
-      end
-
-      def check_attributes
-        super
-        raise InvalidGraphicType if @graphic_type.nil?
-      end
-    end
-  end
-end
+require "zebra/zpl/printable"
+
+module Zebra
+  module Zpl
+    class Graphic
+      include Printable
+
+      class InvalidGraphicType < StandardError; end
+      class InvalidLineThickness < StandardError; end
+      class InvalidColorError < StandardError; end
+      class InvalidOrientationError < StandardError; end
+      class InvalidRoundingDegree < StandardError; end
+      class InvalidSymbolType < StandardError; end
+
+      attr_reader :graphic_type, :graphic_width, :graphic_height, :line_thickness, :color, :orientation, :rounding_degree, :symbol_type
+
+      BOX      = "B"
+      CIRCLE   = "C"
+      DIAGONAL = "D"
+      ELLIPSE  = "E"
+      SYMBOL   = "S"
+
+      def graphic_type=(type)
+        raise InvalidGraphicType unless %w(E B D C S).include? type
+        @graphic_type = type
+      end
+
+      def graphic_width=(width)
+        @graphic_width = width
+      end
+
+      def graphic_height=(height)
+        @graphic_height = height
+      end
+
+      def line_thickness=(thickness)
+        raise InvalidLineThickness unless thickness.nil? || thickness.to_i.to_s == thickness.to_s
+        @line_thickness = thickness
+      end
+
+      def color=(value)
+        raise InvalidColorError unless %w[B W].include?(value&.upcase)
+        @color = value
+      end
+
+      def orientation=(value)
+        raise InvalidOrientationError unless %w[R L].include?(value&.upcase)
+        @orientation = value
+      end
+
+      def rounding_degree=(value)
+        raise InvalidRoundingDegree unless (0..8).include?(value.to_i)
+        @rounding_degree = value
+      end
+
+      def symbol_type=(value)
+        raise InvalidSymbolType unless %w[A B C D E].include?(value.upcase)
+        @symbol_type = value
+      end
+
+      def to_zpl
+        check_attributes
+        graphic = case graphic_type
+        when BOX
+          "^GB#{graphic_width},#{graphic_height},#{line_thickness},#{color},#{rounding_degree}"
+        when CIRCLE
+          "^GC#{graphic_width},#{line_thickness},#{color}"
+        when DIAGONAL
+          "^GD#{graphic_width},#{graphic_height},#{line_thickness},#{color},#{orientation}"
+        when ELLIPSE
+          "^GE#{graphic_width},#{graphic_height},#{line_thickness},#{color}"
+        when SYMBOL
+          sym = !symbol_type.nil? ? "^FD#{symbol_type}" : ''
+          "^GS,#{graphic_height},#{graphic_width}#{sym}"
+        else
+          raise InvalidGraphicType
+        end
+        "^FW#{rotation}^FO#{x},#{y}#{graphic}^FS"
+      end
+
+      private
+
+      def has_data?
+        false
+      end
+
+      def check_attributes
+        super
+        raise InvalidGraphicType if @graphic_type.nil?
+      end
+    end
+  end
+end