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<?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) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id:
*/
/** Internally used classes */
// require_once 'Zend/Pdf/Element.php';
// require_once 'Zend/Pdf/Element/Array.php';
// require_once 'Zend/Pdf/Element/String/Binary.php';
// require_once 'Zend/Pdf/Element/Boolean.php';
// require_once 'Zend/Pdf/Element/Dictionary.php';
// require_once 'Zend/Pdf/Element/Name.php';
// require_once 'Zend/Pdf/Element/Null.php';
// require_once 'Zend/Pdf/Element/Numeric.php';
// require_once 'Zend/Pdf/Element/String.php';
/**
* Resource extractor class is used to detach resources from original PDF document.
*
* It provides resources sharing, so different pages or other PDF resources can share
* its dependent resources (e.g. fonts or images) or other resources still use them without duplication.
* It also reduces output PDF size, required memory for PDF processing and
* processing time.
*
* The same extractor may be used for different source documents, several
* extractors may be used for constracting one target document, but extractor
* must not be shared between target documents.
*
* @package Zend_Pdf
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Pdf_Resource_Extractor
{
/**
* PDF objects factory.
*
* @var Zend_Pdf_ElementFactory_Interface
*/
protected $_factory;
/**
* Reusable list of already processed objects
*
* @var array
*/
protected $_processed;
/**
* Object constructor.
*/
public function __construct()
{
$this->_factory = Zend_Pdf_ElementFactory::createFactory(1);
$this->_processed = array();
}
/**
* Clone page, extract it and dependent objects from the current document,
* so it can be used within other docs
*
* return Zend_Pdf_Page
*/
public function clonePage(Zend_Pdf_Page $page)
{
return $page->clonePage($this->_factory, $this->_processed);
}
}