159 lines
4.2 KiB
PHP
159 lines
4.2 KiB
PHP
<?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: Element.php 18993 2009-11-15 17:09:16Z alexander $
|
|
*/
|
|
|
|
|
|
/**
|
|
* PDF file element implementation
|
|
*
|
|
* @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_Element
|
|
{
|
|
const TYPE_BOOL = 1;
|
|
const TYPE_NUMERIC = 2;
|
|
const TYPE_STRING = 3;
|
|
const TYPE_NAME = 4;
|
|
const TYPE_ARRAY = 5;
|
|
const TYPE_DICTIONARY = 6;
|
|
const TYPE_STREAM = 7;
|
|
const TYPE_NULL = 11;
|
|
|
|
/**
|
|
* Reference to the top level indirect object, which contains this element.
|
|
*
|
|
* @var Zend_Pdf_Element_Object
|
|
*/
|
|
private $_parentObject = null;
|
|
|
|
/**
|
|
* Return type of the element.
|
|
* See ZPdfPDFConst for possible values
|
|
*
|
|
* @return integer
|
|
*/
|
|
abstract public function getType();
|
|
|
|
/**
|
|
* Convert element to a string, which can be directly
|
|
* written to a PDF file.
|
|
*
|
|
* $factory parameter defines operation context.
|
|
*
|
|
* @param Zend_Pdf_Factory $factory
|
|
* @return string
|
|
*/
|
|
abstract public function toString($factory = null);
|
|
|
|
|
|
/**
|
|
* Set top level parent indirect object.
|
|
*
|
|
* @param Zend_Pdf_Element_Object $parent
|
|
*/
|
|
public function setParentObject(Zend_Pdf_Element_Object $parent)
|
|
{
|
|
$this->_parentObject = $parent;
|
|
}
|
|
|
|
|
|
/**
|
|
* Get top level parent indirect object.
|
|
*
|
|
* @return Zend_Pdf_Element_Object
|
|
*/
|
|
public function getParentObject()
|
|
{
|
|
return $this->_parentObject;
|
|
}
|
|
|
|
|
|
/**
|
|
* Mark object as modified, to include it into new PDF file segment.
|
|
*
|
|
* We don't automate this action to keep control on PDF update process.
|
|
* All new objects are treated as "modified" automatically.
|
|
*/
|
|
public function touch()
|
|
{
|
|
if ($this->_parentObject !== null) {
|
|
$this->_parentObject->touch();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clean up resources, used by object
|
|
*/
|
|
public function cleanUp()
|
|
{
|
|
// Do nothing
|
|
}
|
|
|
|
/**
|
|
* Convert PDF element to PHP type.
|
|
*
|
|
* @return mixed
|
|
*/
|
|
public function toPhp()
|
|
{
|
|
return $this->value;
|
|
}
|
|
|
|
/**
|
|
* Convert PHP value into PDF element.
|
|
*
|
|
* @param mixed $input
|
|
* @return Zend_Pdf_Element
|
|
*/
|
|
public static function phpToPdf($input)
|
|
{
|
|
if (is_numeric($input)) {
|
|
require_once 'Zend/Pdf/Element/Numeric.php';
|
|
return new Zend_Pdf_Element_Numeric($input);
|
|
} else if (is_bool($input)) {
|
|
require_once 'Zend/Pdf/Element/Boolean.php';
|
|
return new Zend_Pdf_Element_Boolean($input);
|
|
} else if (is_array($input)) {
|
|
$pdfElementsArray = array();
|
|
$isDictionary = false;
|
|
|
|
foreach ($input as $key => $value) {
|
|
if (is_string($key)) {
|
|
$isDictionary = true;
|
|
}
|
|
$pdfElementsArray[$key] = Zend_Pdf_Element::phpToPdf($value);
|
|
}
|
|
|
|
if ($isDictionary) {
|
|
require_once 'Zend/Pdf/Element/Dictionary.php';
|
|
return new Zend_Pdf_Element_Dictionary($pdfElementsArray);
|
|
} else {
|
|
require_once 'Zend/Pdf/Element/Array.php';
|
|
return new Zend_Pdf_Element_Array($pdfElementsArray);
|
|
}
|
|
} else {
|
|
require_once 'Zend/Pdf/Element/String.php';
|
|
return new Zend_Pdf_Element_String((string)$input);
|
|
}
|
|
}
|
|
}
|