crm.fsf.org/20131203/files/sites/all/modules-new/civicrm/vendor/dompdf/dompdf/src/FrameDecorator/Image.php

   1 <?php
   2 /**
   3  * @package dompdf
   4  * @link    http://dompdf.github.com/
   5  * @author  Benj Carson <benjcarson@digitaljunkies.ca>
   6  * @author  Fabien Ménager <fabien.menager@gmail.com>
   7  * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   8  */
   9 namespace Dompdf\FrameDecorator;
  10
  11 use Dompdf\Dompdf;
  12 use Dompdf\Frame;
  13 use Dompdf\FontMetrics;
  14 use Dompdf\Image\Cache;
  15
  16 /**
  17  * Decorates frames for image layout and rendering
  18  *
  19  * @package dompdf
  20  */
  21 class Image extends AbstractFrameDecorator
  22 {
  23
  24     /**
  25      * The path to the image file (note that remote images are
  26      * downloaded locally to Options:tempDir).
  27      *
  28      * @var string
  29      */
  30     protected $_image_url;
  31
  32     /**
  33      * The image's file error message
  34      *
  35      * @var string
  36      */
  37     protected $_image_msg;
  38
  39     /**
  40      * Class constructor
  41      *
  42      * @param Frame $frame the frame to decorate
  43      * @param DOMPDF $dompdf the document's dompdf object (required to resolve relative & remote urls)
  44      */
  45     function __construct(Frame $frame, Dompdf $dompdf)
  46     {
  47         parent::__construct($frame, $dompdf);
  48         $url = $frame->get_node()->getAttribute("src");
  49
  50         $debug_png = $dompdf->get_option("debug_png");
  51         if ($debug_png) print '[__construct ' . $url . ']';
  52
  53         list($this->_image_url, /*$type*/, $this->_image_msg) = Cache::resolve_url(
  54             $url,
  55             $dompdf->get_protocol(),
  56             $dompdf->get_host(),
  57             $dompdf->get_base_path(),
  58             $dompdf
  59         );
  60
  61         if (Cache::is_broken($this->_image_url) &&
  62             $alt = $frame->get_node()->getAttribute("alt")
  63         ) {
  64             $style = $frame->get_style();
  65             $style->width = (4 / 3) * $dompdf->getFontMetrics()->getTextWidth($alt, $style->font_family, $style->font_size, $style->word_spacing);
  66             $style->height = $dompdf->getFontMetrics()->getFontHeight($style->font_family, $style->font_size);
  67         }
  68     }
  69
  70     /**
  71      * Return the image's url
  72      *
  73      * @return string The url of this image
  74      */
  75     function get_image_url()
  76     {
  77         return $this->_image_url;
  78     }
  79
  80     /**
  81      * Return the image's error message
  82      *
  83      * @return string The image's error message
  84      */
  85     function get_image_msg()
  86     {
  87         return $this->_image_msg;
  88     }
  89
  90 }