<?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: Array.php 22797 2010-08-06 15:02:12Z alexander $

 */

/** Zend_Pdf_Element */

require_once 'Zend/Pdf/Element.php';

/**

 * PDF file 'array' 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_Array extends Zend_Pdf_Element

{

    /**

     * Array element items

     *

     * Array of Zend_Pdf_Element objects

     *

     * @var array

     */

    public $items;

    /**

     * Object constructor

     *

     * @param array $val   - array of Zend_Pdf_Element objects

     * @throws Zend_Pdf_Exception

     */

    public function __construct($val = null)

    {

        $this->items = new ArrayObject();

        if ($val !== null  &&  is_array($val)) {

            foreach ($val as $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');

                }

                $this->items[] = $element;

            }

        } else if ($val !== null){

            require_once 'Zend/Pdf/Exception.php';

            throw new Zend_Pdf_Exception('Argument must be an array');

        }

    }

    /**

     * Getter

     *

     * @param string $property

     * @throws Zend_Pdf_Exception

     */

    public function __get($property) {

        require_once 'Zend/Pdf/Exception.php';

        throw new Zend_Pdf_Exception('Undefined property: Zend_Pdf_Element_Array::$' . $property);

    }

    /**

     * Setter

     *

     * @param mixed $offset

     * @param mixed $value

     * @throws Zend_Pdf_Exception

     */

    public function __set($property, $value) {

        require_once 'Zend/Pdf/Exception.php';

        throw new Zend_Pdf_Exception('Undefined property: Zend_Pdf_Element_Array::$' . $property);

    }

    /**

     * Return type of the element.

     *

     * @return integer

     */

    public function getType()

    {

        return Zend_Pdf_Element::TYPE_ARRAY;

    }

    /**

     * Return object as string

     *

     * @param Zend_Pdf_Factory $factory

     * @return string

     */

    public function toString($factory = null)

    {

        $outStr = '[';

        $lastNL = 0;

        foreach ($this->items as $element) {

            if (strlen($outStr) - $lastNL > 128)  {

                $outStr .= "\n";

                $lastNL = strlen($outStr);

            }

            $outStr .= $element->toString($factory) . ' ';

        }

        $outStr .= ']';

        return $outStr;

    }

    /**

     * 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)

    {

        $newArray = new self();

        foreach ($this->items as $key => $value) {

            $newArray->items[$key] = $value->makeClone($factory, $processed, $mode);

        }

        return $newArray;

    }

    /**

     * Set top level parent indirect object.

     *

     * @param Zend_Pdf_Element_Object $parent

     */

    public function setParentObject(Zend_Pdf_Element_Object $parent)

    {

        parent::setParentObject($parent);

        foreach ($this->items as $item) {

            $item->setParentObject($parent);

        }

    }

    /**

     * Convert PDF element to PHP type.

     *

     * Dictionary is returned as an associative array

     *

     * @return mixed

     */

    public function toPhp()

    {

        $phpArray = array();

        foreach ($this->items as $item) {

            $phpArray[] = $item->toPhp();

        }

        return $phpArray;

    }

}