Ejemplo n.º 1
0
 function render(Frame $frame)
 {
     $style = $frame->get_style();
     $font_size = $style->get_font_size();
     $line_height = $style->length_in_pt($style->line_height, $frame->get_containing_block("w"));
     $this->_set_opacity($frame->get_opacity($style->opacity));
     $li = $frame->get_parent();
     // Don't render bullets twice if if was split
     if ($li->_splitted) {
         return;
     }
     // Handle list-style-image
     // If list style image is requested but missing, fall back to predefined types
     if ($style->list_style_image !== "none" && !Cache::is_broken($img = $frame->get_image_url())) {
         list($x, $y) = $frame->get_position();
         //For expected size and aspect, instead of box size, use image natural size scaled to DPI.
         // Resample the bullet image to be consistent with 'auto' sized images
         // See also Image::get_min_max_width
         // Tested php ver: value measured in px, suffix "px" not in value: rtrim unnecessary.
         //$w = $frame->get_width();
         //$h = $frame->get_height();
         list($width, $height) = Helpers::dompdf_getimagesize($img, $this->_dompdf->getHttpContext());
         $dpi = $this->_dompdf->getOptions()->getDpi();
         $w = (double) rtrim($width, "px") * 72 / $dpi;
         $h = (double) rtrim($height, "px") * 72 / $dpi;
         $x -= $w;
         $y -= ($line_height - $font_size) / 2;
         //Reverse hinting of list_bullet_positioner
         $this->_canvas->image($img, $x, $y, $w, $h);
     } else {
         $bullet_style = $style->list_style_type;
         $fill = false;
         switch ($bullet_style) {
             default:
             case "disc":
                 $fill = true;
             case "circle":
                 list($x, $y) = $frame->get_position();
                 $r = $font_size * ListBulletFrameDecorator::BULLET_SIZE / 2;
                 $x -= $font_size * (ListBulletFrameDecorator::BULLET_SIZE / 2);
                 $y += $font_size * (1 - ListBulletFrameDecorator::BULLET_DESCENT) / 2;
                 $o = $font_size * ListBulletFrameDecorator::BULLET_THICKNESS;
                 $this->_canvas->circle($x, $y, $r, $style->color, $o, null, $fill);
                 break;
             case "square":
                 list($x, $y) = $frame->get_position();
                 $w = $font_size * ListBulletFrameDecorator::BULLET_SIZE;
                 $x -= $w;
                 $y += $font_size * (1 - ListBulletFrameDecorator::BULLET_DESCENT - ListBulletFrameDecorator::BULLET_SIZE) / 2;
                 $this->_canvas->filled_rectangle($x, $y, $w, $w, $style->color);
                 break;
             case "decimal-leading-zero":
             case "decimal":
             case "lower-alpha":
             case "lower-latin":
             case "lower-roman":
             case "lower-greek":
             case "upper-alpha":
             case "upper-latin":
             case "upper-roman":
             case "1":
                 // HTML 4.0 compatibility
             // HTML 4.0 compatibility
             case "a":
             case "i":
             case "A":
             case "I":
                 $pad = null;
                 if ($bullet_style === "decimal-leading-zero") {
                     $pad = strlen($li->get_parent()->get_node()->getAttribute("dompdf-children-count"));
                 }
                 $node = $frame->get_node();
                 if (!$node->hasAttribute("dompdf-counter")) {
                     return;
                 }
                 $index = $node->getAttribute("dompdf-counter");
                 $text = $this->make_counter($index, $bullet_style, $pad);
                 if (trim($text) == "") {
                     return;
                 }
                 $spacing = 0;
                 $font_family = $style->font_family;
                 $line = $li->get_containing_line();
                 list($x, $y) = array($frame->get_position("x"), $line->y);
                 $x -= $this->_dompdf->getFontMetrics()->getTextWidth($text, $font_family, $font_size, $spacing);
                 // Take line-height into account
                 $line_height = $style->line_height;
                 $y += ($line_height - $font_size) / 4;
                 // FIXME I thought it should be 2, but 4 gives better results
                 $this->_canvas->text($x, $y, $text, $font_family, $font_size, $style->color, $spacing);
             case "none":
                 break;
         }
     }
 }