themes/spice_of_life.php

   1 <?php
   2
   3 /**
   4  * Name:   Spice of Life
   5  * Date:   October 20, 2001
   6  * Comment Generates random colors for each frame,
   7  *         featuring either a dark or light background.
   8  *
   9  * @author Jorey Bump
  10  * @copyright &copy; 2000-2009 The SquirrelMail Project Team
  11  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  12  * @version $Id$
  13  * @package squirrelmail
  14  * @subpackage themes
  15  */
  16
  17 /** Prevent direct script loading */
  18 if (isset($_SERVER['SCRIPT_FILENAME']) && $_SERVER['SCRIPT_FILENAME'] == __FILE__) {
  19     die();
  20 }
  21
  22 /** light(1) or dark(0) background? **/
  23 $bg = mt_rand(0,1);
  24
  25 /** range delimiter **/
  26 $bgrd = $bg * 128;
  27
  28 for ($i = 0; $i <= 16; $i++) {
  29     /** background/foreground toggle **/
  30     if ($i == 0 or $i == 3 or $i == 4 or $i == 5 or $i == 9 or $i == 10 or $i == 12 or $i == 16) {
  31         /** background **/
  32         $cmin = 0 + $bgrd;
  33         $cmax = 127 + $bgrd;
  34     } else {
  35         /** text **/
  36         $cmin = 128 - $bgrd;
  37         $cmax = 255 - $bgrd;
  38     }
  39
  40     /** generate random color **/
  41     $r = mt_rand($cmin,$cmax);
  42     $g = mt_rand($cmin,$cmax);
  43     $b = mt_rand($cmin,$cmax);
  44
  45     /** set array element as hex string with hashmark (for HTML output) **/
  46     $color[$i] = sprintf('#%02X%02X%02X',$r,$g,$b);
  47 }