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<!DOCTYPE html>  <html> <head>   <title>huesaturation.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="blackwhite.html">                 blackwhite.coffee               </a>                                           <a class="source" href="brightnesscontrast.html">                 brightnesscontrast.coffee               </a>                                           <a class="source" href="colorbalance.html">                 colorbalance.coffee               </a>                                           <a class="source" href="curves.html">                 curves.coffee               </a>                                           <a 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       <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-1">&#182;</a>               </div>                            </td>             <td class="code">               <div class="highlight"><pre><span class="k">class</span> <span class="nx">PSDHueSaturation</span>
  <span class="nv">constructor: </span><span class="nf">(@layer, @length) -&gt;</span>
    <span class="vi">@file = </span><span class="nx">@layer</span><span class="p">.</span><span class="nx">file</span>

  <span class="nv">parse: </span><span class="o">-&gt;</span>
    <span class="nv">version = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>
    <span class="nx">assert</span> <span class="nx">version</span> <span class="o">is</span> <span class="mi">2</span>

    <span class="vi">@data.colorization = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">readBoolean</span><span class="p">()</span>

    <span class="nx">@file</span><span class="p">.</span><span class="nx">seek</span> <span class="mi">1</span> <span class="c1"># padding byte</span></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-2">&#182;</a>               </div>               <p>Photoshop 5.0 has a new hue system
Hue is [-180, 180]
Saturation is [0, 100]
Lightness is [-100, 100]</p>

<p>Photoshop 4.0 uses HSB color space
Hue: [-100, 100]
Saturation: [0, 100]
Lightness: [-100, 1000]</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="vi">@data.hue = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>
    <span class="vi">@data.saturation = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>
    <span class="vi">@data.lightness = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>

    <span class="vi">@data.masterHue = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>
    <span class="vi">@data.masterSaturation = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span>
    <span class="vi">@data.masterLightness = </span><span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-3">&#182;</a>               </div>               <p>6 sets of 14 bytes (4 range values followed by 3 settings values)</p>             </td>             <td class="code">               <div class="highlight"><pre>    <span class="vi">@data.rangeValues = </span><span class="p">[]</span>
    <span class="vi">@data.settingValues = </span><span class="p">[]</span>
    <span class="k">for</span> <span class="nx">i</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="mi">6</span><span class="p">]</span>
      <span class="nx">@data</span><span class="p">.</span><span class="nx">rangeValues</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
      <span class="nx">@data</span><span class="p">.</span><span class="nx">settingValues</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-4">&#182;</a>               </div>               <p>For RGB and CMYK</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="nx">@data</span><span class="p">.</span><span class="nx">rangeValues</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="nx">j</span><span class="p">]</span> <span class="o">=</span> <span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span> <span class="k">for</span> <span class="nx">j</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="mi">4</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-5">&#182;</a>               </div>               <p>For Lab color</p>             </td>             <td class="code">               <div class="highlight"><pre>      <span class="nx">@data</span><span class="p">.</span><span class="nx">settingValues</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="nx">j</span><span class="p">]</span> <span class="o">=</span> <span class="nx">@file</span><span class="p">.</span><span class="nx">getShortInt</span><span class="p">()</span> <span class="k">for</span> <span class="nx">j</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="mi">3</span><span class="p">]</span>

    <span class="nx">@data</span>

</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html>