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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) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Jpeg.php 19039 2009-11-19 15:05:32Z alexander $
*/
/** Internally used classes */
require_once 'Zend/Pdf/Element/Name.php';
require_once 'Zend/Pdf/Element/Numeric.php';
/** Zend_Pdf_Resource_Image */
require_once 'Zend/Pdf/Resource/Image.php';
/**
* JPEG image
*
* @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
*/
class Zend_Pdf_Resource_Image_Jpeg extends Zend_Pdf_Resource_Image
{
protected $_width;
protected $_height;
protected $_imageProperties;
/**
* Object constructor
*
* @param string $imageFileName
* @throws Zend_Pdf_Exception
*/
public function __construct($imageFileName)
{
if (!function_exists('gd_info')) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Image extension is not installed.');
}
$gd_options = gd_info();
if ( (!isset($gd_options['JPG Support']) || $gd_options['JPG Support'] != true) &&
(!isset($gd_options['JPEG Support']) || $gd_options['JPEG Support'] != true) ) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('JPG support is not configured properly.');
}
if (($imageInfo = getimagesize($imageFileName)) === false) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Corrupted image or image doesn\'t exist.');
}
if ($imageInfo[2] != IMAGETYPE_JPEG && $imageInfo[2] != IMAGETYPE_JPEG2000) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('ImageType is not JPG');
}
parent::__construct();
switch ($imageInfo['channels']) {
case 3:
$colorSpace = 'DeviceRGB';
break;
case 4:
$colorSpace = 'DeviceCMYK';
break;
default:
$colorSpace = 'DeviceGray';
break;
}
$imageDictionary = $this->_resource->dictionary;
$imageDictionary->Width = new Zend_Pdf_Element_Numeric($imageInfo[0]);
$imageDictionary->Height = new Zend_Pdf_Element_Numeric($imageInfo[1]);
$imageDictionary->ColorSpace = new Zend_Pdf_Element_Name($colorSpace);
$imageDictionary->BitsPerComponent = new Zend_Pdf_Element_Numeric($imageInfo['bits']);
if ($imageInfo[2] == IMAGETYPE_JPEG) {
$imageDictionary->Filter = new Zend_Pdf_Element_Name('DCTDecode');
} else if ($imageInfo[2] == IMAGETYPE_JPEG2000){
$imageDictionary->Filter = new Zend_Pdf_Element_Name('JPXDecode');
}
if (($imageFile = @fopen($imageFileName, 'rb')) === false ) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception( "Can not open '$imageFileName' file for reading." );
}
$byteCount = filesize($imageFileName);
$this->_resource->value = '';
while ( $byteCount > 0 && ($nextBlock = fread($imageFile, $byteCount)) != false ) {
$this->_resource->value .= $nextBlock;
$byteCount -= strlen($nextBlock);
}
fclose($imageFile);
$this->_resource->skipFilters();
$this->_width = $imageInfo[0];
$this->_height = $imageInfo[1];
$this->_imageProperties = array();
$this->_imageProperties['bitDepth'] = $imageInfo['bits'];
$this->_imageProperties['jpegImageType'] = $imageInfo[2];
$this->_imageProperties['jpegColorType'] = $imageInfo['channels'];
}
/**
* Image width
*/
public function getPixelWidth() {
return $this->_width;
}
/**
* Image height
*/
public function getPixelHeight() {
return $this->_height;
}
/**
* Image properties
*/
public function getProperties() {
return $this->_imageProperties;
}
}
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