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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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Dictionary.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/** Internally used classes */
require_once 'Zend/Pdf/Element/Name.php';
/** Zend_Pdf_Element */
require_once 'Zend/Pdf/Element.php';
/**
* PDF file 'dictionary' element implementation
*
* @category Zend
* @package Zend_Pdf
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Pdf_Element_Dictionary extends Zend_Pdf_Element
{
/**
* Dictionary elements
* Array of Zend_Pdf_Element objects ('name' => Zend_Pdf_Element)
*
* @var array
*/
private $_items = array();
/**
* Object constructor
*
* @param array $val - array of Zend_Pdf_Element objects
* @throws Zend_Pdf_Exception
*/
public function __construct($val = null)
{
if ($val === null) {
return;
} else if (!is_array($val)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Argument must be an array');
}
foreach ($val as $name => $element) {
if (!$element instanceof Zend_Pdf_Element) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Array elements must be Zend_Pdf_Element objects');
}
if (!is_string($name)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Array keys must be strings');
}
$this->_items[$name] = $element;
}
}
/**
* Add element to an array
*
* @name Zend_Pdf_Element_Name $name
* @param Zend_Pdf_Element $val - Zend_Pdf_Element object
* @throws Zend_Pdf_Exception
*/
public function add(Zend_Pdf_Element_Name $name, Zend_Pdf_Element $val)
{
$this->_items[$name->value] = $val;
}
/**
* Return dictionary keys
*
* @return array
*/
public function getKeys()
{
return array_keys($this->_items);
}
/**
* Get handler
*
* @param string $property
* @return Zend_Pdf_Element | null
*/
public function __get($item)
{
$element = isset($this->_items[$item]) ? $this->_items[$item]
: null;
return $element;
}
/**
* Set handler
*
* @param string $property
* @param mixed $value
*/
public function __set($item, $value)
{
if ($value === null) {
unset($this->_items[$item]);
} else {
$this->_items[$item] = $value;
}
}
/**
* Return type of the element.
*
* @return integer
*/
public function getType()
{
return Zend_Pdf_Element::TYPE_DICTIONARY;
}
/**
* Return object as string
*
* @param Zend_Pdf_Factory $factory
* @return string
*/
public function toString($factory = null)
{
$outStr = '<<';
$lastNL = 0;
foreach ($this->_items as $name => $element) {
if (!is_object($element)) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Wrong data');
}
if (strlen($outStr) - $lastNL > 128) {
$outStr .= "\n";
$lastNL = strlen($outStr);
}
$nameObj = new Zend_Pdf_Element_Name($name);
$outStr .= $nameObj->toString($factory) . ' ' . $element->toString($factory) . ' ';
}
$outStr .= '>>';
return $outStr;
}
/**
* Convert PDF element to PHP type.
*
* Dictionary is returned as an associative array
*
* @return mixed
*/
public function toPhp()
{
$phpArray = array();
foreach ($this->_items as $itemName => $item) {
$phpArray[$itemName] = $item->toPhp();
}
return $phpArray;
}
}
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