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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 $Id$ */
/** * PDF file Resource abstraction * * @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 */ 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) { if ($resource instanceof Zend_Pdf_Element_Object) { $this->_objectFactory = $resource->getFactory(); $this->_resource = $resource;
return; }
// 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); } }
/** * Clone page, extract it and dependent objects from the current document, * so it can be used within other docs. */ public function __clone() { /** @todo implementation*/
// $factory = Zend_Pdf_ElementFactory::createFactory(1);
// $processed = array();
//
// // Clone dictionary object.
// // Do it explicitly to prevent sharing resource attributes between different
// // results of clone operation (other resources are still shared)
// $dictionary = new Zend_Pdf_Element_Dictionary();
// foreach ($this->_pageDictionary->getKeys() as $key) {
// $dictionary->$key = $this->_pageDictionary->$key->makeClone($factory->getFactory(),
// $processed,
// Zend_Pdf_Element::CLONE_MODE_SKIP_PAGES);
// }
//
// $this->_pageDictionary = $factory->newObject($dictionary);
// $this->_objectFactory = $factory;
// $this->_attached = false;
// $this->_style = null;
// $this->_font = null;
}
/** * Clone resource, extract it and dependent objects from the current document, * so it can be used within other docs. * * @internal * @param Zend_Pdf_ElementFactory_Interface $factory * @param array $processed * @return Zend_Pdf_Page */ public function cloneResource($factory, &$processed) { /** @todo implementation*/
// // Clone dictionary object.
// // Do it explicitly to prevent sharing page attributes between different
// // results of clonePage() operation (other resources are still shared)
// $dictionary = new Zend_Pdf_Element_Dictionary();
// foreach ($this->_pageDictionary->getKeys() as $key) {
// $dictionary->$key = $this->_pageDictionary->$key->makeClone($factory->getFactory(),
// $processed,
// Zend_Pdf_Element::CLONE_MODE_SKIP_PAGES);
// }
//
// $clonedPage = new Zend_Pdf_Page($factory->newObject($dictionary), $factory);
// $clonedPage->_attached = false;
//
// return $clonedPage;
}
/** * 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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