Class: PdfUtils::Color

Inherits:
Object
  • Object
show all
Defined in:
lib/pdf_utils/color.rb

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Color

Returns a new instance of Color.



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# File 'lib/pdf_utils/color.rb', line 3

def initialize(*args)
  if args.first.is_a?(String)
    @r, @g, @b = args.first.scan(/../).map{ |rgb| rgb.to_i(16) }
  elsif args.size == 3
    if args.any? {|arg| arg.kind_of?(Float) }
      @r, @g, @b = args.map {|v| (v * 255).to_i }
    else
      @r, @g, @b = args
    end
  end
end

Instance Method Details

#to_hex ⇒ Object 



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# File 'lib/pdf_utils/color.rb', line 19

def to_hex
  to_rgb.inject(''){ |hex, v| hex << "%02x" % v }
end

#to_pdf ⇒ Object 



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# File 'lib/pdf_utils/color.rb', line 15

def to_pdf
  to_rgb.map{ |v| v / 255.0 }
end

#to_rgb ⇒ Object 



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# File 'lib/pdf_utils/color.rb', line 23

def to_rgb
  [@r, @g, @b]
end