/library/Zend/Pdf/Trailer.php
PHP | 126 lines | 36 code | 14 blank | 76 comment | 1 complexity | 629af44be4e50a560ade2e5f6b2c4419 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.0, MIT
- <?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: Trailer.php 24594 2012-01-05 21:27:01Z matthew $
- */
- /**
- * PDF file trailer
- *
- * @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
- */
- abstract class Zend_Pdf_Trailer
- {
- private static $_allowedKeys = array('Size', 'Prev', 'Root', 'Encrypt', 'Info', 'ID', 'Index', 'W', 'XRefStm', 'DocChecksum');
- /**
- * Trailer dictionary.
- *
- * @var Zend_Pdf_Element_Dictionary
- */
- private $_dict;
- /**
- * Check if key is correct
- *
- * @param string $key
- * @throws Zend_Pdf_Exception
- */
- private function _checkDictKey($key)
- {
- if ( !in_array($key, self::$_allowedKeys) ) {
- /** @todo Make warning (log entry) instead of an exception */
- require_once 'Zend/Pdf/Exception.php';
- throw new Zend_Pdf_Exception("Unknown trailer dictionary key: '$key'.");
- }
- }
- /**
- * Object constructor
- *
- * @param Zend_Pdf_Element_Dictionary $dict
- */
- public function __construct(Zend_Pdf_Element_Dictionary $dict)
- {
- $this->_dict = $dict;
- foreach ($this->_dict->getKeys() as $dictKey) {
- $this->_checkDictKey($dictKey);
- }
- }
- /**
- * Get handler
- *
- * @param string $property
- * @return mixed
- */
- public function __get($property)
- {
- return $this->_dict->$property;
- }
- /**
- * Set handler
- *
- * @param string $property
- * @param mixed $value
- */
- public function __set($property, $value)
- {
- $this->_checkDictKey($property);
- $this->_dict->$property = $value;
- }
- /**
- * Return string trailer representation
- *
- * @return string
- */
- public function toString()
- {
- return "trailer\n" . $this->_dict->toString() . "\n";
- }
- /**
- * Get length of source PDF
- *
- * @return string
- */
- abstract public function getPDFLength();
- /**
- * Get PDF String
- *
- * @return string
- */
- abstract public function getPDFString();
- /**
- * Get header of free objects list
- * Returns object number of last free object
- *
- * @return integer
- */
- abstract public function getLastFreeObject();
- }