Method: Color::Palette::AdobeColor#to_aco

Defined in:
lib/color/palette/adobecolor.rb

#to_aco(version = @version) ⇒ Object

:nodoc:

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# File 'lib/color/palette/adobecolor.rb', line 212

def to_aco(version = @version) #:nodoc:
  res = ""

  res << [ version, @order.size ].pack("nn")

  @order.each do |cnpair|
    color, name = *cnpair

    # Note: HSB and CMYK formats are lost by the conversions performed on
    # import. They are turned into RGB and WCMYK, respectively.

    cstr = case color
           when Array
             color
           when Color::RGB
             r = [(color.red * 256).round, 65535].min
             g = [(color.green * 256).round, 65535].min
             b = [(color.blue * 256).round, 65535].min
             [ 0, r, g, b, 0 ]
           when Color::GrayScale
             g = [(color.gray * 100).round, 10000].min
             [ 8, g, 0, 0, 0 ]
           when Color::CMYK
             c = [(color.cyan * 100).round, 10000].min
             m = [(color.magenta * 100).round, 10000].min
             y = [(color.yellow * 100).round, 10000].min
             k = [(color.black * 100).round, 10000].min
             [ 9, c, m, y, k ]
           end
    cstr = cstr.pack("nnnnn")

    nstr = ""

    if version == 2
      if (name.size / 2 * 2) == name.size # only where s[0] == byte!
        nstr << [ 0, (name.size / 2) + 1 ].pack("nn")
        nstr << name
        nstr << [ 0 ].pack("n")
      else
        nstr << [ 0, 1, 0 ].pack("nnn")
      end
    end

    res << cstr << nstr
  end

  res
end