Mercurial > hg > LightPIT / file revision

 package de.uapcore.lightpit.types;

 public final class WebColor {

     private final String hex;

     /**

      * Constructs a color object from a hex string.

      * @param hex the 6 digits hex string optionally preceded by a hash symbol

      * @throws IllegalArgumentException if the given string does not specify a color

      */

     public WebColor(String hex) throws IllegalArgumentException {

         this.hex = (hex.startsWith("#") ? hex : ("#"+hex)).toUpperCase();

         if (!this.hex.matches("#[0-9A-F]{6}"))

             throw new IllegalArgumentException(hex+" is not a color");

     }

     /**

      * Returns the hex representation without th leading hash symbol.

      * @return the hex representation of this color (e.g. FF0000 for red)

      */

     public String getHex() {

         return hex.substring(1);

     }

     @Override

     public String toString() {

         return hex;

     }

 }