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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
* @subpackage Annotation
* @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: Link.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/** Internally used classes */
require_once 'Zend/Pdf/Element.php';
require_once 'Zend/Pdf/Element/Array.php';
require_once 'Zend/Pdf/Element/Dictionary.php';
require_once 'Zend/Pdf/Element/Name.php';
require_once 'Zend/Pdf/Element/Numeric.php';
/** Zend_Pdf_Annotation */
require_once 'Zend/Pdf/Annotation.php';
/**
* A link annotation represents either a hypertext link to a destination elsewhere in
* the document or an action to be performed.
*
* Only destinations are used now since only GoTo action can be created by user
* in current implementation.
*
* @package Zend_Pdf
* @subpackage Annotation
* @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_Annotation_Link extends Zend_Pdf_Annotation
{
/**
* Annotation object constructor
*
* @throws Zend_Pdf_Exception
*/
public function __construct(Zend_Pdf_Element $annotationDictionary)
{
if ($annotationDictionary->getType() != Zend_Pdf_Element::TYPE_DICTIONARY) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Annotation dictionary resource has to be a dictionary.');
}
if ($annotationDictionary->Subtype === null ||
$annotationDictionary->Subtype->getType() != Zend_Pdf_Element::TYPE_NAME ||
$annotationDictionary->Subtype->value != 'Link') {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Subtype => Link entry is requires');
}
parent::__construct($annotationDictionary);
}
/**
* Create link annotation object
*
* @param float $x1
* @param float $y1
* @param float $x2
* @param float $y2
* @param Zend_Pdf_Target|string $target
* @return Zend_Pdf_Annotation_Link
*/
public static function create($x1, $y1, $x2, $y2, $target)
{
if (is_string($target)) {
require_once 'Zend/Pdf/Destination/Named.php';
$destination = Zend_Pdf_Destination_Named::create($target);
}
if (!$target instanceof Zend_Pdf_Target) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('$target parameter must be a Zend_Pdf_Target object or a string.');
}
$annotationDictionary = new Zend_Pdf_Element_Dictionary();
$annotationDictionary->Type = new Zend_Pdf_Element_Name('Annot');
$annotationDictionary->Subtype = new Zend_Pdf_Element_Name('Link');
$rectangle = new Zend_Pdf_Element_Array();
$rectangle->items[] = new Zend_Pdf_Element_Numeric($x1);
$rectangle->items[] = new Zend_Pdf_Element_Numeric($y1);
$rectangle->items[] = new Zend_Pdf_Element_Numeric($x2);
$rectangle->items[] = new Zend_Pdf_Element_Numeric($y2);
$annotationDictionary->Rect = $rectangle;
if ($target instanceof Zend_Pdf_Destination) {
$annotationDictionary->Dest = $target->getResource();
} else {
$annotationDictionary->A = $target->getResource();
}
return new Zend_Pdf_Annotation_Link($annotationDictionary);
}
/**
* Set link annotation destination
*
* @param Zend_Pdf_Target|string $target
* @return Zend_Pdf_Annotation_Link
*/
public function setDestination($target)
{
if (is_string($target)) {
require_once 'Zend/Pdf/Destination/Named.php';
$destination = Zend_Pdf_Destination_Named::create($target);
}
if (!$target instanceof Zend_Pdf_Target) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('$target parameter must be a Zend_Pdf_Target object or a string.');
}
$this->_annotationDictionary->touch();
$this->_annotationDictionary->Dest = $destination->getResource();
if ($target instanceof Zend_Pdf_Destination) {
$this->_annotationDictionary->Dest = $target->getResource();
$this->_annotationDictionary->A = null;
} else {
$this->_annotationDictionary->Dest = null;
$this->_annotationDictionary->A = $target->getResource();
}
return $this;
}
/**
* Get link annotation destination
*
* @return Zend_Pdf_Target|null
*/
public function getDestination()
{
if ($this->_annotationDictionary->Dest === null &&
$this->_annotationDictionary->A === null) {
return null;
}
if ($this->_annotationDictionary->Dest !== null) {
require_once 'Zend/Pdf/Destination.php';
return Zend_Pdf_Destination::load($this->_annotationDictionary->Dest);
} else {
require_once 'Zend/Pdf/Action.php';
return Zend_Pdf_Action::load($this->_annotationDictionary->A);
}
}
}
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