Contents

require 'colorable'

module Aeternitas
  module WebUi
    class ColorGenerator
      def initialize(n, baseColor = "#C25B56")
        @counter = 0
        @base_color = Colorable::Color.new(baseColor).hsb
        @step = 240.0 / n
        @colors = []
      end

      def next
        generate_color(@counter)
        @counter += 1
        current
      end

      def current
        @colors[@counter] || generate_color(@counter)
      end


      def generate_color(i)
        next_hue = @base_color[0] + (@step * (i % 240.0))
        next_color = Colorable::Color.new(Colorable::HSB.new(next_hue, @base_color[1], @base_color[2]))
        @colors[i] = next_color
        next_color
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
aeternitas_web_ui-0.2.1	lib/aeternitas/web_ui/color_generator.rb
aeternitas_web_ui-0.2.0	lib/aeternitas/web_ui/color_generator.rb
aeternitas_web_ui-0.1.0	lib/aeternitas/web_ui/color_generator.rb