Class: Colorable::HSB

Inherits:
ColorSpace show all
Defined in:
lib/colorable/color_space.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from ColorSpace

#-, #<=>, #coerce, #move_to_top, #to_s

Methods included from Converter

#hex2rgb, #hsb2rgb, #name2rgb, #rgb2hex, #rgb2hsb, #rgb2hsl, #rgb2name

Constructor Details

#initialize(h = 0, s = 0, b = 0) ⇒ HSB

Returns a new instance of HSB.



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# File 'lib/colorable/color_space.rb', line 135

def initialize(h=0,s=0,b=0)
  @h, @s, @b = @hsb = validate_hsb([h, s, b])
end

Instance Attribute Details

#b ⇒ Object Also known as: bright

Returns the value of attribute b.



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# File 'lib/colorable/color_space.rb', line 134

def b
  @b
end

#h ⇒ Object Also known as: hue

Returns the value of attribute h.



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# File 'lib/colorable/color_space.rb', line 134

def h
  @h
end

#hsb ⇒ Object Also known as: to_a

Returns the value of attribute hsb.



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# File 'lib/colorable/color_space.rb', line 134

def hsb
  @hsb
end

#s ⇒ Object Also known as: sat

Returns the value of attribute s.



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# File 'lib/colorable/color_space.rb', line 134

def s
  @s
end

Instance Method Details

#+(arg) ⇒ Object

Pass Array of [h, s, b] or a Fixnum. Returns new HSB object with added HSB.



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# File 'lib/colorable/color_space.rb', line 146

def +(arg)
  arg =
    case arg
    when Array
      raise ArgumentError, "Must be three numbers contained" unless arg.size==3
      arg
    else
      raise ArgumentError, "Accept only Array of three numbers"
    end
  new_hsb = self.hsb.zip(arg, [360, 101, 101]).map { |x, y, div| (x + y) % div }
  self.class.new *new_hsb
end

#to_hex ⇒ Object 



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# File 'lib/colorable/color_space.rb', line 167

def to_hex
  rgb2hex(self.to_rgb)
end

#to_name ⇒ Object 



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# File 'lib/colorable/color_space.rb', line 159

def to_name
  rgb2name(self.to_rgb)
end

#to_rgb ⇒ Object 



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# File 'lib/colorable/color_space.rb', line 163

def to_rgb
  hsb2rgb(self.to_a)
end