lambdaway :: color_bar

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_h1 pinStripe

_h2 1) N&B

_ul [[https://rosettacode.org/wiki/Pinstripe/Display|https://rosettacode.org/wiki/Pinstripe/Display]]
 
{pre
'{def window 
 {lambda {:w :h}
  div
  {@ style="position:relative;
            top:0; left:0; 
            width::wpx; height::hpx; 
            background:#eee;"}}}
-> {def window 
 {lambda {:w :h}
  div
  {@ style="position:relative;
            top:0; left:0; 
            width::wpx; height::hpx; 
            background:#eee;"}}}

'{def rec
 {lambda {:x :y :w :h :c}
  {div
   {@ style="position:absolute; 
             top::ypx; left::xpx; 
             width::wpx; height::hpx; 
             background::c;"}}}}
-> {def rec
 {lambda {:x :y :w :h :c}
  {div
   {@ style="position:absolute; 
             top::ypx; left::xpx; 
             width::wpx; height::hpx; 
             background::c;"}}}}

'{def row
 {lambda {:w :h :k}
  {S.map {{lambda {:dx :dy :h :i}
                  {rec :i         :dy :dx :h #000}
                  {rec {+ :i :dx} :dy :dx :h #fff}
          } {pow 2 :k} {* :k {/ :w 8}} {/ :h 4}} 
         {S.serie 0 {- :w 1} {pow 2 {+ :k 1}}}}}}
-> {def row
 {lambda {:w :h :k}
  {S.map {{lambda {:dx :dy :h :i}
                  {rec :i         :dy :dx :h #000}
                  {rec {+ :i :dx} :dy :dx :h #fff}
          } {pow 2 :k} {* :k {/ :w 8}} {/ :h 4}} 
         {S.serie 0 {- :w 1} {pow 2 {+ :k 1}}}}}}

'{def WIDTH 640}
-> {def WIDTH 640}

'{def HEIGHT 480}
-> {def HEIGHT 480}

'{{window {WIDTH} {HEIGHT}}
 {S.map {row {WIDTH} {HEIGHT}}
  0 1 2 3 4}}
->
}

{{window {WIDTH} {HEIGHT}}
 {S.map {row {WIDTH} {HEIGHT}} 0 1 2 3 4}}

_h2 2) 8 colors

_ul [[https://rosettacode.org/wiki/Colour_pinstripe/Display#BASIC256|https://rosettacode.org/wiki/Colour_pinstripe/Display#BASIC256]]

{pre
w = 640 : h = 480
graphsize w, h

dim k = '{black, red, green, blue, purple, cyan, yellow, white}
h /= 4

for i = 1 to 4
    col = 0
    y = (i-1) * h
    for x = 1 to w step i
        if col mod 8 = 0 then col = 0
        colour k[col]
        rect (x, y, x + i, y + h)
        col += 1
    next x
next i

}