148 lines
3.6 KiB
PHP
148 lines
3.6 KiB
PHP
<?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) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id: Keeper.php 16541 2009-07-07 06:59:03Z bkarwin $
|
|
*/
|
|
|
|
|
|
/** Zend_Pdf_Trailer */
|
|
require_once 'Zend/Pdf/Trailer.php';
|
|
|
|
/** Zend_Pdf_Element_Reference_Context */
|
|
require_once 'Zend/Pdf/Element/Reference/Context.php';
|
|
|
|
|
|
/**
|
|
* PDF file trailer.
|
|
* Stores and provides access to the trailer parced from a PDF file
|
|
*
|
|
* @package Zend_Pdf
|
|
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Pdf_Trailer_Keeper extends Zend_Pdf_Trailer
|
|
{
|
|
/**
|
|
* Reference context
|
|
*
|
|
* @var Zend_Pdf_Element_Reference_Context
|
|
*/
|
|
private $_context;
|
|
|
|
/**
|
|
* Previous trailer
|
|
*
|
|
* @var Zend_Pdf_Trailer
|
|
*/
|
|
private $_prev;
|
|
|
|
|
|
/**
|
|
* Object constructor
|
|
*
|
|
* @param Zend_Pdf_Element_Dictionary $dict
|
|
* @param Zend_Pdf_Element_Reference_Context $context
|
|
* @param Zend_Pdf_Trailer $prev
|
|
*/
|
|
public function __construct(Zend_Pdf_Element_Dictionary $dict,
|
|
Zend_Pdf_Element_Reference_Context $context,
|
|
$prev = null)
|
|
{
|
|
parent::__construct($dict);
|
|
|
|
$this->_context = $context;
|
|
$this->_prev = $prev;
|
|
}
|
|
|
|
/**
|
|
* Setter for $this->_prev
|
|
*
|
|
* @param Zend_Pdf_Trailer_Keeper $prev
|
|
*/
|
|
public function setPrev(Zend_Pdf_Trailer_Keeper $prev)
|
|
{
|
|
$this->_prev = $prev;
|
|
}
|
|
|
|
/**
|
|
* Getter for $this->_prev
|
|
*
|
|
* @return Zend_Pdf_Trailer
|
|
*/
|
|
public function getPrev()
|
|
{
|
|
return $this->_prev;
|
|
}
|
|
|
|
/**
|
|
* Get length of source PDF
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getPDFLength()
|
|
{
|
|
return $this->_context->getParser()->getLength();
|
|
}
|
|
|
|
/**
|
|
* Get PDF String
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getPDFString()
|
|
{
|
|
return $this->_context->getParser()->getString();
|
|
}
|
|
|
|
/**
|
|
* Get reference table, which corresponds to the trailer.
|
|
* Proxy to the $_context member methad call
|
|
*
|
|
* @return Zend_Pdf_Element_Reference_Context
|
|
*/
|
|
public function getRefTable()
|
|
{
|
|
return $this->_context->getRefTable();
|
|
}
|
|
|
|
/**
|
|
* Get header of free objects list
|
|
* Returns object number of last free object
|
|
*
|
|
* @throws Zend_Pdf_Exception
|
|
* @return integer
|
|
*/
|
|
public function getLastFreeObject()
|
|
{
|
|
try {
|
|
$this->_context->getRefTable()->getNextFree('0 65535 R');
|
|
} catch (Zend_Pdf_Exception $e) {
|
|
if ($e->getMessage() == 'Object not found.') {
|
|
/**
|
|
* Here is work around for some wrong generated PDFs.
|
|
* We have not found reference to the header of free object list,
|
|
* thus we treat it as there are no free objects.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
throw $e;
|
|
}
|
|
}
|
|
}
|