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   1  <?php
   2  /*
   3   * Limb PHP Framework
   4   *
   5   * @link http://limb-project.com 
   6   * @copyright  Copyright &copy; 2004-2007 BIT(http://bit-creative.com)
   7   * @license    LGPL http://www.gnu.org/copyleft/lesser.html 
   8   */
   9  
  10  /**

  11   * class WactArrayIterator.

  12   *

  13   * @package wact

  14   * @version $Id: WactArrayIterator.class.php 5945 2007-06-06 08:31:43Z pachanga $

  15   */
  16  class WactArrayIterator extends ArrayIterator
  17  {
  18    public $position = 0;
  19    public $offset = 0;
  20    public $limit = 0;
  21    protected $paginated = false;
  22  
  23    function rewind()
  24    {
  25      $this->position = 0;
  26      parent :: rewind();
  27      if($this->offset)
  28        $this->seek($this->offset);
  29    }
  30  
  31    function current()
  32    {
  33      return new WactArrayObject(parent :: current());
  34    }
  35  
  36    function next()
  37    {
  38      $this->position++;
  39      return parent :: next();
  40    }
  41  
  42    function valid()
  43    {
  44      if($this->limit && ($this->position >= $this->limit))
  45        return false;
  46      return parent :: valid();
  47    }
  48  
  49    function getOffset()
  50    {
  51      return $this->offset;
  52    }
  53  
  54    function getLimit()
  55    {
  56      return $this->limit;
  57    }
  58  
  59    function paginate($offset, $limit)
  60    {
  61      $this->offset = $offset;
  62      $this->limit = $limit;
  63      $this->paginated = true;
  64    }
  65  
  66    function countPaginated()
  67    {
  68      if(!$this->paginated)
  69        return $this->count();
  70  
  71      $total = $this->count();
  72      if(($this->offset + $this->limit) < $total)
  73        return $this->limit;
  74      else
  75        return $total - $this->offset;
  76    }
  77  }
  78  ?>