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<?php
/**
* @package dompdf
* @link http://dompdf.github.com/
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @author Fabien Ménager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
/**
* Decorates frames for image layout and rendering
*
* @access private
* @package dompdf
*/
class Image_Frame_Decorator extends Frame_Decorator {
/**
* The path to the image file (note that remote images are
* downloaded locally to DOMPDF_TEMP_DIR).
*
* @var string
*/
protected $_image_url;
/**
* The image's file error message
*
* @var string
*/
protected $_image_msg;
/**
* Class constructor
*
* @param Frame $frame the frame to decorate
* @param DOMPDF $dompdf the document's dompdf object (required to resolve relative & remote urls)
*/
function __construct(Frame $frame, DOMPDF $dompdf) {
parent::__construct($frame, $dompdf);
$url = $frame->get_node()->getAttribute("src");
$debug_png = $dompdf->get_option("debug_png");
if ($debug_png) print '[__construct '.$url.']';
list($this->_image_url, /*$type*/, $this->_image_msg) = Image_Cache::resolve_url(
$url,
$dompdf->get_protocol(),
$dompdf->get_host(),
$dompdf->get_base_path(),
$dompdf
);
if ( Image_Cache::is_broken($this->_image_url) &&
$alt = $frame->get_node()->getAttribute("alt") ) {
$style = $frame->get_style();
$style->width = (4/3)*Font_Metrics::get_text_width($alt, $style->font_family, $style->font_size, $style->word_spacing);
$style->height = Font_Metrics::get_font_height($style->font_family, $style->font_size);
}
}
/**
* Return the image's url
*
* @return string The url of this image
*/
function get_image_url() {
return $this->_image_url;
}
/**
* Return the image's error message
*
* @return string The image's error message
*/
function get_image_msg() {
return $this->_image_msg;
}
}
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