class PRRD::Graph::Hrule

PRRD Graph Hrule class

Public Class Methods

new(values = nil) click to toggle source

Constructor

Calls superclass method PRRD::Entity::new
# File lib/prrd/graph/hrule.rb, line 13
def initialize(values = nil)
  @keys = [
    :value,
    :color,
    :legend,
    :dashes,
    :dashes_offset
  ]

  super values
end

Public Instance Methods

to_s() click to toggle source

Transform to a HRULE formatted string

# File lib/prrd/graph/hrule.rb, line 26
def to_s
  fail 'Empty hrule object' if @data.empty?

  validate_presence :value, :color

  chunks = []

  @keys.each do |k|
    next unless @data.key?(k)
    case k
    when :value
      chunks << "HRULE:%s%s" % [@data[k], @data[:color]]
    when :dashes
      chunks << "dashes=\"%s\"" % @data[k]
    when :dashes_offset
      chunks << "dashes-offset=\"%s\"" % @data[k]
    when :color
      # nope
    else
      chunks << @data[k]
    end
  end

  chunks.join ':'
end