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Class: Selenium::WebDriver::Support::Color

Relationships & Source Files
Inherits: Object
Defined in: rb/lib/selenium/webdriver/support/color.rb

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(red, green, blue, alpha = 1) ⇒ Color

[ GitHub ] 

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 112



def initialize(red, green, blue, alpha = 1)
  @red = Integer(red)
  @green = Integer(green)
  @blue = Integer(blue)
  @alpha = Float(alpha)
end


  







Class Method Details



  

    .from_hsl(hue, sat, light, alpha)  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 75



def self.from_hsl(hue, sat, light, alpha)
  hue = Float(hue) / 360
  sat = Float(sat) / 100
  light = Float(light) / 100
  alpha = Float(alpha || 1)

  if sat.zero?
    r = light
    g = r
    b = r
  else
    luminocity2 = light < 0.5 ? light * (sat + 1) : light + sat - (light * sat)
    luminocity1 = (light * 2) - luminocity2

    r = hue_to_rgb(luminocity1, luminocity2, hue + (1.0 / 3.0))
    g = hue_to_rgb(luminocity1, luminocity2, hue)
    b = hue_to_rgb(luminocity1, luminocity2, hue - (1.0 / 3.0))
  end

  new (r * 255).round, (g * 255).round, (b * 255).round, alpha
end


  








  

    .from_string(str)  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 50



def self.from_string(str)
  case str
  when RGB_PATTERN
    new Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3)
  when RGB_PCT_PATTERN
    array = [Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3)]
    new(*array.map { |e| Float(e) / 100 * 255 })
  when RGBA_PATTERN
    new Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3), Regexp.last_match(4)
  when RGBA_PCT_PATTERN
    array = [Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3)]
    new(*array.map { |e| Float(e) / 100 * 255 } << Regexp.last_match(4))
  when HEX_PATTERN
    array = [Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3)]
    new(*array.map { |e| e.to_i(16) })
  when HEX3_PATTERN
    array = [Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3)]
    new(*array.map { |e| (e * 2).to_i(16) })
  when HSL_PATTERN, HSLA_PATTERN
    from_hsl(Regexp.last_match(1), Regexp.last_match(2), Regexp.last_match(3), Regexp.last_match(4))
  else
    raise ArgumentError, "could not convert #{str.inspect} into color"
  end
end


  








  

    .hue_to_rgb(lum1, lum2, hue)  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 97



def self.hue_to_rgb(lum1, lum2, hue)
  hue += 1 if hue < 0.0
  hue -= 1 if hue > 1.0

  if hue < 1.0 / 6.0
    (lum1 + ((lum2 - lum1) * 6.0 * hue))
  elsif hue < 1.0 / 2.0
    lum2
  elsif hue < 2.0 / 3.0
    lum1 + ((lum2 - lum1) * ((2.0 / 3.0) - hue) * 6.0)
  else
    lum1
  end
end


  







Instance Attribute Details



  

    #alpha   (readonly)
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 48



attr_reader :red, :green, :blue, :alpha


  








  

    #blue   (readonly)
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 48



attr_reader :red, :green, :blue, :alpha


  








  

    #green   (readonly)
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 48



attr_reader :red, :green, :blue, :alpha


  








  

    #red   (readonly)
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 48



attr_reader :red, :green, :blue, :alpha


  







Instance Method Details



  

    #==(other)  
    Also known as: #eql?
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 119



def ==(other)
  return true if equal?(other)
  return false unless other.is_a?(self.class)

  [red, green, blue, alpha] == [other.red, other.green, other.blue, other.alpha]
end


  








  

    #eql?(other)  
  



  

    

Alias for #==.


  



  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 125



alias eql? ==


  








  

    #hash  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 127



def hash
  [red, green, blue, alpha, self.class].hash
end


  








  

    #hex  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 140



def hex
  format '#%<red>02x%<green>02x%<blue>02x', red: red, green: green, blue: blue
end


  








  

    #rgb  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 131



def rgb
  "rgb(#{red}, #{green}, #{blue})"
end


  








  

    #rgba  
  

  [ GitHub ]


  

  


# File 'rb/lib/selenium/webdriver/support/color.rb', line 135



def rgba
  a = alpha == 1 ? '1' : alpha
  "rgba(#{red}, #{green}, #{blue}, #{a})"
end