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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) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Resource.php 18993 2009-11-15 17:09:16Z alexander $
*/
/**
* PDF file Resource abstraction
*
* @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
*/
abstract class Zend_Pdf_Resource
{
/**
* Each Pdf resource (fonts, images, ...) interacts with a PDF itself.
* It creates appropriate PDF objects, structures and sometime embedded files.
* Resources are referenced in content streams by names, which are stored in
* a page resource dictionaries.
*
* Thus, resources must be attached to the PDF.
*
* Resource abstraction uses own PDF object factory to store all necessary information.
* At the render time internal object factory is appended to the global PDF file
* factory.
*
* Resource abstraction also cashes information about rendered PDF files and
* doesn't duplicate resource description each time then Resource is rendered
* (referenced).
*
* @var Zend_Pdf_ElementFactory_Interface
*/
protected $_objectFactory;
/**
* Main resource object
*
* @var Zend_Pdf_Element_Object
*/
protected $_resource;
/**
* Object constructor.
*
* If resource is not a Zend_Pdf_Element object, then stream object with specified value is
* generated.
*
* @param Zend_Pdf_Element|string $resource
*/
public function __construct($resource)
{
require_once 'Zend/Pdf/ElementFactory.php';
$this->_objectFactory = Zend_Pdf_ElementFactory::createFactory(1);
if ($resource instanceof Zend_Pdf_Element) {
$this->_resource = $this->_objectFactory->newObject($resource);
} else {
$this->_resource = $this->_objectFactory->newStreamObject($resource);
}
}
/**
* Get resource.
* Used to reference resource in an internal PDF data structures (resource dictionaries)
*
* @internal
* @return Zend_Pdf_Element_Object
*/
public function getResource()
{
return $this->_resource;
}
/**
* Get factory.
*
* @internal
* @return Zend_Pdf_ElementFactory_Interface
*/
public function getFactory()
{
return $this->_objectFactory;
}
}
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