From: Peter Ertl <pertl@...>
Date: 2006-03-24T01:39:27+09:00
Subject: Re: Is this a kind of design patterns?

I got great improvements to make color usage enterprise ready...

Here comes my first class color object using state-of-the-art
design patterns for better scalability and performance

I was designed using the rational design process + UML

class ColorRegistry
private

  def self.mix(*colors)
    r,g,b=[0,0,0]
    while color = colors.shift
      r += color[0]
      g += color[1]
      b += color[2]
    end
    [r,g,b]
  end

  RED   = [255,0,0]
  GREEN = [0,0b11111111,0]
  BLUE  = [0,0,0xff]
  WHITE = mix(RED, GREEN, BLUE)
  YELLOW = mix(RED, GREEN)
  # more to come  

public
  def self.get_binding
    binding
  end

end


class ColorEvaluator
  def self.get(name)
    eval(name.upcase, ColorRegistry.get_binding)
  end
end

puts ColorEvaluator.get("yellow")
puts ColorEvaluator.get("red")
puts ColorEvaluator.get("white")


> --- Urspr�ngliche Nachricht ---
> Von: Jim Weirich <jim@weirichhouse.org>
> An: ruby-talk@ruby-lang.org (ruby-talk ML)
> Betreff: Re: Is this a kind of design patterns?
> Datum: Fri, 24 Mar 2006 01:13:52 +0900
> 
> Robert Klemme wrote:
> > Since we're in Color anyway, you can simplify the definition that by
> 
> I like that.
> 
> And I love the collective refactoring that goes on in this list!
> 
> --
> -- Jim Weirich
> 
> -- 
> Posted via http://www.ruby-forum.com/.
>