1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Pdf

    17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id: Jpeg.php 23395 2010-11-19 15:30:47Z alexander $

    20  */

    21 

    22 

    23 /** Internally used classes */

    24 require_once 'Zend/Pdf/Element/Name.php';

    25 require_once 'Zend/Pdf/Element/Numeric.php';

    26 

    27 

    28 /** Zend_Pdf_Resource_Image */

    29 require_once 'Zend/Pdf/Resource/Image.php';

    30 

    31 /**

    32  * JPEG image

    33  *

    34  * @package    Zend_Pdf

    35  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    36  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    37  */

    38 class Zend_Pdf_Resource_Image_Jpeg extends Zend_Pdf_Resource_Image

    39 {

    40 

    41     protected $_width;

    42     protected $_height;

    43     protected $_imageProperties;

    44 

    45     /**

    46      * Object constructor

    47      *

    48      * @param string $imageFileName

    49      * @throws Zend_Pdf_Exception

    50      */

    51     public function __construct($imageFileName)

    52     {

    53         if (!function_exists('gd_info')) {

    54             require_once 'Zend/Pdf/Exception.php';

    55             throw new Zend_Pdf_Exception('Image extension is not installed.');

    56         }

    57 

    58         $gd_options = gd_info();

    59         if ( (!isset($gd_options['JPG Support'])  || $gd_options['JPG Support']  != true)  &&

    60              (!isset($gd_options['JPEG Support']) || $gd_options['JPEG Support'] != true)  ) {

    61             require_once 'Zend/Pdf/Exception.php';

    62             throw new Zend_Pdf_Exception('JPG support is not configured properly.');

    63         }

    64 

    65         if (($imageInfo = getimagesize($imageFileName)) === false) {

    66             require_once 'Zend/Pdf/Exception.php';

    67             throw new Zend_Pdf_Exception('Corrupted image or image doesn\'t exist.');

    68         }

    69         if ($imageInfo[2] != IMAGETYPE_JPEG && $imageInfo[2] != IMAGETYPE_JPEG2000) {

    70             require_once 'Zend/Pdf/Exception.php';

    71             throw new Zend_Pdf_Exception('ImageType is not JPG');

    72         }

    73 

    74         parent::__construct();

    75 

    76         switch ($imageInfo['channels']) {

    77             case 3:

    78                 $colorSpace = 'DeviceRGB';

    79                 break;

    80             case 4:

    81                 $colorSpace = 'DeviceCMYK';

    82                 break;

    83             default:

    84                 $colorSpace = 'DeviceGray';

    85                 break;

    86         }

    87 

    88         $imageDictionary = $this->_resource->dictionary;

    89         $imageDictionary->Width            = new Zend_Pdf_Element_Numeric($imageInfo[0]);

    90         $imageDictionary->Height           = new Zend_Pdf_Element_Numeric($imageInfo[1]);

    91         $imageDictionary->ColorSpace       = new Zend_Pdf_Element_Name($colorSpace);

    92         $imageDictionary->BitsPerComponent = new Zend_Pdf_Element_Numeric($imageInfo['bits']);

    93         if ($imageInfo[2] == IMAGETYPE_JPEG) {

    94             $imageDictionary->Filter       = new Zend_Pdf_Element_Name('DCTDecode');

    95         } else if ($imageInfo[2] == IMAGETYPE_JPEG2000){

    96             $imageDictionary->Filter       = new Zend_Pdf_Element_Name('JPXDecode');

    97         }

    98 

    99         if (($imageFile = @fopen($imageFileName, 'rb')) === false ) {

   100             require_once 'Zend/Pdf/Exception.php';

   101             throw new Zend_Pdf_Exception( "Can not open '$imageFileName' file for reading." );

   102         }

   103         $byteCount = filesize($imageFileName);

   104         $this->_resource->value = '';

   105 

   106         while ($byteCount > 0 && !feof($imageFile)) {

   107             $nextBlock = fread($imageFile, $byteCount);

   108             if ($nextBlock === false) {

   109                 require_once 'Zend/Pdf/Exception.php';

   110                 throw new Zend_Pdf_Exception( "Error occured while '$imageFileName' file reading." );

   111             }

   112 

   113             $this->_resource->value .= $nextBlock;

   114             $byteCount -= strlen($nextBlock);

   115         }

   116         if ($byteCount != 0) {

   117             require_once 'Zend/Pdf/Exception.php';

   118             throw new Zend_Pdf_Exception( "Error occured while '$imageFileName' file reading." );

   119         }

   120         fclose($imageFile);

   121         $this->_resource->skipFilters();

   122 

   123         $this->_width  = $imageInfo[0];

   124         $this->_height = $imageInfo[1];

   125         $this->_imageProperties = array();

   126         $this->_imageProperties['bitDepth'] = $imageInfo['bits'];

   127         $this->_imageProperties['jpegImageType'] = $imageInfo[2];

   128         $this->_imageProperties['jpegColorType'] = $imageInfo['channels'];

   129     }

   130 

   131     /**

   132      * Image width

   133      */

   134     public function getPixelWidth() {

   135         return $this->_width;

   136     }

   137 

   138     /**

   139      * Image height

   140      */

   141     public function getPixelHeight() {

   142         return $this->_height;

   143     }

   144 

   145     /**

   146      * Image properties

   147      */

   148     public function getProperties() {

   149         return $this->_imageProperties;

   150     }

   151 }

   152