<?php
  /**
   * Zend Framework
   *
   * LICENSE
   *
   * This source file is subject to the new BSD license that is bundled
   * with this package in the file LICENSE.txt.
   * It is also available through the world-wide-web at this URL:
   * http://framework.zend.com/license/new-bsd
   * If you did not receive a copy of the license and are unable to
   * obtain it through the world-wide-web, please send an email
   * to license@zend.com so we can send you a copy immediately.
   *
   * @category   Zend
   * @package    Zend_Pdf
   * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
   * @license    http://framework.zend.com/license/new-bsd     New BSD License
   * @version    $Id: Boolean.php 24593 2012-01-05 20:35:02Z matthew $
   */
  
  
  /** Zend_Pdf_Element */
  require_once 'Zend/Pdf/Element.php';
  
  
  /**
   * PDF file 'boolean' element implementation
   *
   * @category   Zend
   * @package    Zend_Pdf
   * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
   * @license    http://framework.zend.com/license/new-bsd     New BSD License
   */
  class Zend_Pdf_Element_Boolean extends Zend_Pdf_Element
  {
      /**
       * Object value
       *
       * @var boolean
       */
      public $value;
  
  
      /**
       * Object constructor
       *
       * @param boolean $val
       * @throws Zend_Pdf_Exception
       */
      public function __construct($val)
      {
          if (! is_bool($val)) {
              require_once 'Zend/Pdf/Exception.php';
              throw new Zend_Pdf_Exception('Argument must be boolean.');
          }
  
          $this->value   = $val;
      }
  
  
      /**
       * Return type of the element.
       *
       * @return integer
       */
      public function getType()
      {
          return Zend_Pdf_Element::TYPE_BOOL;
      }
  
  
      /**
       * Return object as string
       *
       * @param Zend_Pdf_Factory $factory
       * @return string
       */
      public function toString($factory = null)
      {
          return $this->value ? 'true' : 'false';
      }
  }