vendor/dompdf/dompdf/src/Renderer/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\Renderer;
  10
  11 use Dompdf\Frame;
  12 use Dompdf\Image\Cache;
  13
  14 /**
  15  * Image renderer
  16  *
  17  * @access  private
  18  * @package dompdf
  19  */
  20 class Image extends Block
  21 {
  22
  23     /**
  24      * @param Frame $frame
  25      */
  26     function render(Frame $frame)
  27     {
  28         // Render background & borders
  29         $style = $frame->get_style();
  30         $cb = $frame->get_containing_block();
  31         list($x, $y, $w, $h) = $frame->get_border_box();
  32
  33         $this->_set_opacity($frame->get_opacity($style->opacity));
  34
  35         list($tl, $tr, $br, $bl) = $style->get_computed_border_radius($w, $h);
  36
  37         $has_border_radius = $tl + $tr + $br + $bl > 0;
  38
  39         if ($has_border_radius) {
  40             $this->_canvas->clipping_roundrectangle($x, $y, (float)$w, (float)$h, $tl, $tr, $br, $bl);
  41         }
  42
  43         if (($bg = $style->background_color) !== "transparent") {
  44             $this->_canvas->filled_rectangle($x, $y, (float)$w, (float)$h, $bg);
  45         }
  46
  47         if (($url = $style->background_image) && $url !== "none") {
  48             $this->_background_image($url, $x, $y, $w, $h, $style);
  49         }
  50
  51         if ($has_border_radius) {
  52             $this->_canvas->clipping_end();
  53         }
  54
  55         $this->_render_border($frame);
  56         $this->_render_outline($frame);
  57
  58         list($x, $y) = $frame->get_padding_box();
  59
  60         $x += (float)$style->length_in_pt($style->padding_left, $cb["w"]);
  61         $y += (float)$style->length_in_pt($style->padding_top, $cb["h"]);
  62
  63         $w = (float)$style->length_in_pt($style->width, $cb["w"]);
  64         $h = (float)$style->length_in_pt($style->height, $cb["h"]);
  65
  66         if ($has_border_radius) {
  67             list($wt, $wr, $wb, $wl) = array(
  68                 $style->border_top_width,
  69                 $style->border_right_width,
  70                 $style->border_bottom_width,
  71                 $style->border_left_width,
  72             );
  73
  74             // we have to get the "inner" radius
  75             if ($tl > 0) {
  76                 $tl -= ($wt + $wl) / 2;
  77             }
  78             if ($tr > 0) {
  79                 $tr -= ($wt + $wr) / 2;
  80             }
  81             if ($br > 0) {
  82                 $br -= ($wb + $wr) / 2;
  83             }
  84             if ($bl > 0) {
  85                 $bl -= ($wb + $wl) / 2;
  86             }
  87
  88             $this->_canvas->clipping_roundrectangle($x, $y, $w, $h, $tl, $tr, $br, $bl);
  89         }
  90
  91         $src = $frame->get_image_url();
  92         $alt = null;
  93
  94         if (Cache::is_broken($src) &&
  95             $alt = $frame->get_node()->getAttribute("alt")
  96         ) {
  97             $font = $style->font_family;
  98             $size = $style->font_size;
  99             $spacing = $style->word_spacing;
 100             $this->_canvas->text(
 101                 $x,
 102                 $y,
 103                 $alt,
 104                 $font,
 105                 $size,
 106                 $style->color,
 107                 $spacing
 108             );
 109         } else {
 110             $this->_canvas->image($src, $x, $y, $w, $h, $style->image_resolution);
 111         }
 112
 113         if ($has_border_radius) {
 114             $this->_canvas->clipping_end();
 115         }
 116
 117         if ($msg = $frame->get_image_msg()) {
 118             $parts = preg_split("/\s*\n\s*/", $msg);
 119             $height = 10;
 120             $_y = $alt ? $y + $h - count($parts) * $height : $y;
 121
 122             foreach ($parts as $i => $_part) {
 123                 $this->_canvas->text($x, $_y + $i * $height, $_part, "times", $height * 0.8, array(0.5, 0.5, 0.5));
 124             }
 125         }
 126
 127         if ($this->_dompdf->getOptions()->getDebugLayout() && $this->_dompdf->getOptions()->getDebugLayoutBlocks()) {
 128             $this->_debug_layout($frame->get_border_box(), "blue");
 129             if ($this->_dompdf->getOptions()->getDebugLayoutPaddingBox()) {
 130                 $this->_debug_layout($frame->get_padding_box(), "blue", array(0.5, 0.5));
 131             }
 132         }
 133
 134         $id = $frame->get_node()->getAttribute("id");
 135         if (strlen($id) > 0)  {
 136             $this->_canvas->add_named_dest($id);
 137         }
 138     }
 139 }