Contents

module Rocx
  module Properties
    class Tab < BaseProperty
      attr_reader :position, :type, :leader

      VALID_TYPES = %i(bar center clear decimal end num start)
      VALID_LEADERS = [nil, :dot, :heavy, :hyphen, :middleDot, :none, :underscore]

      def initialize(position, type, leader=nil)
        self.position = position
        self.type = type
        self.leader = leader
      end

      def position=(value)
        raise ArgumentError, invalid_position_message unless valid_position?(value)
        @position = value
      end

      def type=(value)
        raise ArgumentError, invalid_type_message unless valid_type?(value)
        @type = value
      end

      def leader=(value)
        raise ArgumentError, invalid_leader_message unless valid_leader?(value)
        @leader = value
      end

      def to_xml(xml)
        xml["w"].public_send(tag, xml_attributes)
      end

    private

      def xml_attributes
        attrs = { "w:pos" => position,
                  "w:val" => type}
        attrs["w:leader"] = leader if leader
        attrs
      end

      def invalid_position_message
        "Invalid position: must be an integer"
      end

      def valid_position?(value)
        value.is_a?(Integer)
      end

      def invalid_type_message
        "Invalid type: must be one of: #{VALID_TYPES.join(", ")}"
      end

      def valid_type?(value)
        VALID_TYPES.member? value
      end

      def invalid_leader_message
        "Invalid leader: must be one of: #{VALID_LEADERS.join(", ")}"
      end

      def valid_leader?(value)
        VALID_LEADERS.member? value
      end

    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
rocx-0.7.0	lib/rocx/properties/tab.rb
rocx-0.6.0	lib/rocx/properties/tab.rb
rocx-0.5.8	lib/rocx/properties/tab.rb