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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 $Id$ */
/** Zend_Pdf_Element */ // require_once 'Zend/Pdf/Element.php';
/** * PDF file 'indirect object' element implementation * * @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 */ class Zend_Pdf_Element_Object extends Zend_Pdf_Element { /** * Object value * * @var Zend_Pdf_Element */ protected $_value;
/** * Object number within PDF file * * @var integer */ protected $_objNum;
/** * Generation number * * @var integer */ protected $_genNum;
/** * Reference to the factory. * * @var Zend_Pdf_ElementFactory */ protected $_factory;
/** * Object constructor * * @param Zend_Pdf_Element $val * @param integer $objNum * @param integer $genNum * @param Zend_Pdf_ElementFactory $factory * @throws Zend_Pdf_Exception */ public function __construct(Zend_Pdf_Element $val, $objNum, $genNum, Zend_Pdf_ElementFactory $factory) { if ($val instanceof self) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Object number must not be an instance of Zend_Pdf_Element_Object.'); }
if ( !(is_integer($objNum) && $objNum > 0) ) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Object number must be positive integer.'); }
if ( !(is_integer($genNum) && $genNum >= 0) ) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Generation number must be non-negative integer.'); }
$this->_value = $val; $this->_objNum = $objNum; $this->_genNum = $genNum; $this->_factory = $factory;
$this->setParentObject($this);
$factory->registerObject($this, $objNum . ' ' . $genNum); }
/** * Check, that object is generated by specified factory * * @return Zend_Pdf_ElementFactory */ public function getFactory() { return $this->_factory; }
/** * Return type of the element. * * @return integer */ public function getType() { return $this->_value->getType(); }
/** * Get object number * * @return integer */ public function getObjNum() { return $this->_objNum; }
/** * Get generation number * * @return integer */ public function getGenNum() { return $this->_genNum; }
/** * Return reference to the object * * @param Zend_Pdf_Factory $factory * @return string */ public function toString($factory = null) { if ($factory === null) { $shift = 0; } else { $shift = $factory->getEnumerationShift($this->_factory); }
return $this->_objNum + $shift . ' ' . $this->_genNum . ' R'; }
/** * Dump object to a string to save within PDF file. * * $factory parameter defines operation context. * * @param Zend_Pdf_ElementFactory $factory * @return string */ public function dump(Zend_Pdf_ElementFactory $factory) { $shift = $factory->getEnumerationShift($this->_factory);
return $this->_objNum + $shift . " " . $this->_genNum . " obj \n" . $this->_value->toString($factory) . "\n" . "endobj\n"; }
/** * Get handler * * @param string $property * @return mixed */ public function __get($property) { return $this->_value->$property; }
/** * Set handler * * @param string $property * @param mixed $value */ public function __set($property, $value) { $this->_value->$property = $value; }
/** * Call handler * * @param string $method * @param array $args * @return mixed */ public function __call($method, $args) { return call_user_func_array(array($this->_value, $method), $args); }
/** * Detach PDF object from the factory (if applicable), clone it and attach to new factory. * * @param Zend_Pdf_ElementFactory $factory The factory to attach * @param array &$processed List of already processed indirect objects, used to avoid objects duplication * @param integer $mode Cloning mode (defines filter for objects cloning) * @returns Zend_Pdf_Element */ public function makeClone(Zend_Pdf_ElementFactory $factory, array &$processed, $mode) { $id = spl_object_hash($this); if (isset($processed[$id])) { // Do nothing if object is already processed
// return it
return $processed[$id]; }
// Create obect with null value and register it in $processed container
$processed[$id] = $clonedObject = $factory->newObject(new Zend_Pdf_Element_Null());
// Pecursively process actual data
$clonedObject->_value = $this->_value->makeClone($factory, $processed, $mode);
if ($clonedObject->_value instanceof Zend_Pdf_Element_Null) { // Do not store null objects within $processed container since it may be filtered
// by $mode parameter but used in some future pass
unset($processed[$id]);
// Return direct null object
return $clonedObject->_value; }
return $clonedObject; }
/** * Mark object as modified, to include it into new PDF file segment */ public function touch() { $this->_factory->markAsModified($this); }
/** * Return object, which can be used to identify object and its references identity * * @return Zend_Pdf_Element_Object */ public function getObject() { return $this; }
/** * Clean up resources, used by object */ public function cleanUp() { $this->_value = null; }
/** * Convert PDF element to PHP type. * * @return mixed */ public function toPhp() { return $this->_value->toPhp(); } }
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