themes/Hawaiian/lib/random.php

   1 <?php
   2 class randomImage
   3 {
   4     /**
   5      * Usage:
   6      *
   7      * $imgSet = new randomImage($WikiTheme->file("images/pictures"));
   8      * $imgFile = "pictures/" . $imgSet->filename;
   9      */
  10     function randomImage($dirname)
  11     {
  12
  13         $this->filename = ""; // Pick up your filename here.
  14
  15         $_imageSet = new imageSet($dirname);
  16         $this->imageList = $_imageSet->getFiles();
  17         unset($_imageSet);
  18
  19         if (empty($this->imageList)) {
  20             trigger_error(sprintf(_("%s is empty."), $dirname),
  21                 E_USER_NOTICE);
  22         } else {
  23             $dummy = $this->pickRandom();
  24         }
  25     }
  26
  27     function pickRandom()
  28     {
  29         better_srand(); // Start with a good seed.
  30         $this->filename = $this->imageList[array_rand($this->imageList)];
  31         //trigger_error(sprintf(_("random image chosen: %s"),
  32         //                      $this->filename),
  33         //              E_USER_NOTICE); //debugging
  34         return $this->filename;
  35     }
  36 }
  37
  38 ;
  39
  40 class imageSet extends fileSet
  41 {
  42     /**
  43      * A file is considered an image when the suffix matches one from
  44      * $InlineImages.
  45      */
  46     function _filenameSelector($filename)
  47     {
  48         return preg_match("/(" . INLINE_IMAGES . ")$/i", $filename);
  49     }
  50 }
  51
  52 ;
  53
  54 // Local Variables:
  55 // mode: php
  56 // tab-width: 8
  57 // c-basic-offset: 4
  58 // c-hanging-comment-ender-p: nil
  59 // indent-tabs-mode: nil
  60 // End: