File indexing completed on 2024-05-12 06:02:53

 <?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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 
 /**
  * PDF file element implementation
  *
  * @package    Zend_Pdf
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Pdf_Element
 {
     const TYPE_BOOL        = 1;
     const TYPE_NUMERIC     = 2;
     const TYPE_STRING      = 3;
     const TYPE_NAME        = 4;
     const TYPE_ARRAY       = 5;
     const TYPE_DICTIONARY  = 6;
     const TYPE_STREAM      = 7;
     const TYPE_NULL        = 11;
 
     /**
      * Reference to the top level indirect object, which contains this element.
      *
      * @var Zend_Pdf_Element_Object
      */
     private $_parentObject = null;
 
     /**
      * Return type of the element.
      * See ZPdfPDFConst for possible values
      *
      * @return integer
      */
     abstract public function getType();
 
     /**
      * Convert element to a string, which can be directly
      * written to a PDF file.
      *
      * $factory parameter defines operation context.
      *
      * @param Zend_Pdf_Factory $factory
      * @return string
      */
     abstract public function toString($factory = null);
 
     const CLONE_MODE_SKIP_PAGES    = 1; // Do not follow pages during deep copy process
     const CLONE_MODE_FORCE_CLONING = 2; // Force top level object cloning even it's already processed
 
     /**
      * Detach PDF object from the factory (if applicable), clone it and attach to new factory.
      *
      * @todo It's nevessry to check if SplObjectStorage class works faster
      * (Needs PHP 5.3.x to attach object _with_ additional data to storage)
      *
      * @param Zend_Pdf_ElementFactory $factory  The factory to attach
      * @param array &$processed List of already processed indirect objects, used to avoid objects duplication
      * @param integer $mode  Cloning mode (defines filter for objects cloning)
      * @returns Zend_Pdf_Element
      */
     public function makeClone(Zend_Pdf_ElementFactory $factory, array &$processed, $mode)
     {
         return clone $this;
     }
 
     /**
      * Set top level parent indirect object.
      *
      * @param Zend_Pdf_Element_Object $parent
      */
     public function setParentObject(Zend_Pdf_Element_Object $parent)
     {
         $this->_parentObject = $parent;
     }
 
 
     /**
      * Get top level parent indirect object.
      *
      * @return Zend_Pdf_Element_Object
      */
     public function getParentObject()
     {
         return $this->_parentObject;
     }
 
 
     /**
      * Mark object as modified, to include it into new PDF file segment.
      *
      * We don't automate this action to keep control on PDF update process.
      * All new objects are treated as "modified" automatically.
      */
     public function touch()
     {
         if ($this->_parentObject !== null) {
             $this->_parentObject->touch();
         }
     }
 
     /**
      * Clean up resources, used by object
      */
     public function cleanUp()
     {
         // Do nothing
     }
 
     /**
      * Convert PDF element to PHP type.
      *
      * @return mixed
      */
     public function toPhp()
     {
         return $this->value;
     }
 
     /**
      * Convert PHP value into PDF element.
      *
      * @param mixed $input
      * @return Zend_Pdf_Element
      */
     public static function phpToPdf($input)
     {
         if (is_numeric($input)) {
             // require_once 'Zend/Pdf/Element/Numeric.php';
             return new Zend_Pdf_Element_Numeric($input);
         } else if (is_bool($input)) {
             // require_once 'Zend/Pdf/Element/Boolean.php';
             return new Zend_Pdf_Element_Boolean($input);
         } else if (is_array($input)) {
             $pdfElementsArray = array();
             $isDictionary = false;
 
             foreach ($input as $key => $value) {
                 if (is_string($key)) {
                     $isDictionary = true;
                 }
                 $pdfElementsArray[$key] = Zend_Pdf_Element::phpToPdf($value);
             }
 
             if ($isDictionary) {
                 // require_once 'Zend/Pdf/Element/Dictionary.php';
                 return new Zend_Pdf_Element_Dictionary($pdfElementsArray);
             } else {
                 // require_once 'Zend/Pdf/Element/Array.php';
                 return new Zend_Pdf_Element_Array($pdfElementsArray);
             }
         } else {
             // require_once 'Zend/Pdf/Element/String.php';
             return new Zend_Pdf_Element_String((string)$input);
         }
     }
 }