1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Pdf

    17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id:

    20  */

    21 

    22 /** Internally used classes */

    23 require_once 'Zend/Pdf/Element.php';

    24 require_once 'Zend/Pdf/Element/Array.php';

    25 require_once 'Zend/Pdf/Element/String/Binary.php';

    26 require_once 'Zend/Pdf/Element/Boolean.php';

    27 require_once 'Zend/Pdf/Element/Dictionary.php';

    28 require_once 'Zend/Pdf/Element/Name.php';

    29 require_once 'Zend/Pdf/Element/Null.php';

    30 require_once 'Zend/Pdf/Element/Numeric.php';

    31 require_once 'Zend/Pdf/Element/String.php';

    32 

    33 

    34 /**

    35  * Resource extractor class is used to detach resources from original PDF document.

    36  *

    37  * It provides resources sharing, so different pages or other PDF resources can share

    38  * its dependent resources (e.g. fonts or images) or other resources still use them without duplication.

    39  * It also reduces output PDF size, required memory for PDF processing and

    40  * processing time.

    41  *

    42  * The same extractor may be used for different source documents, several

    43  * extractors may be used for constracting one target document, but extractor

    44  * must not be shared between target documents.

    45  *

    46  * @package    Zend_Pdf

    47  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    48  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    49  */

    50 class Zend_Pdf_Resource_Extractor

    51 {

    52     /**

    53      * PDF objects factory.

    54      *

    55      * @var Zend_Pdf_ElementFactory_Interface

    56      */

    57     protected $_factory;

    58 

    59     /**

    60      * Reusable list of already processed objects

    61      *

    62      * @var array

    63      */

    64     protected $_processed;

    65 

    66     /**

    67      * Object constructor.

    68      */

    69     public function __construct()

    70     {

    71         $this->_factory   = Zend_Pdf_ElementFactory::createFactory(1);

    72         $this->_processed = array();

    73     }

    74 

    75     /**

    76      * Clone page, extract it and dependent objects from the current document,

    77      * so it can be used within other docs

    78      *

    79      * return Zend_Pdf_Page

    80      */

    81     public function clonePage(Zend_Pdf_Page $page)

    82     {

    83         return $page->clonePage($this->_factory, $this->_processed);

    84     }

    85 }

    86