Viewing file:  ListBulletImage.php (2.72 KB) -rw-r--r--
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<?php
/**
* @package dompdf
* @link https://github.com/dompdf/dompdf
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace Dompdf\FrameDecorator;
use Dompdf\Dompdf;
use Dompdf\Frame;
use Dompdf\Helpers;
use Dompdf\Image\Cache;
/**
* Decorates frames for list bullets with custom images
*
* @package dompdf
*/
class ListBulletImage extends ListBullet
{
/**
* The underlying image frame
*
* @var Image
*/
protected $_img;
/**
* The image's width in pixels
*
* @var float
*/
protected $_width;
/**
* The image's height in pixels
*
* @var float
*/
protected $_height;
/**
* ListBulletImage constructor.
* @param Frame $frame
* @param Dompdf $dompdf
*/
function __construct(Frame $frame, Dompdf $dompdf)
{
$style = $frame->get_style();
$url = $style->list_style_image;
$frame->get_node()->setAttribute("src", $url);
$this->_img = new Image($frame, $dompdf);
parent::__construct($this->_img, $dompdf);
$url = $this->_img->get_image_url();
if (Cache::is_broken($url)) {
$this->_width = parent::get_width();
$this->_height = parent::get_height();
} else {
// Resample the bullet image to be consistent with 'auto' sized images
[$width, $height] = $this->_img->get_intrinsic_dimensions();
$this->_width = $this->_img->resample($width);
$this->_height = $this->_img->resample($height);
}
}
public function get_width(): float
{
return $this->_width;
}
public function get_height(): float
{
return $this->_height;
}
public function get_margin_width(): float
{
$style = $this->get_style();
return $this->_width + $style->font_size * self::MARKER_INDENT;
}
public function get_margin_height(): float
{
$fontMetrics = $this->_dompdf->getFontMetrics();
$style = $this->get_style();
$font = $style->font_family;
$size = $style->font_size;
$fontHeight = $fontMetrics->getFontHeight($font, $size);
$baseline = $fontMetrics->getFontBaseline($font, $size);
// This is the same factor as used in
// `FrameDecorator\Text::get_margin_height()`
$f = $style->line_height / ($size > 0 ? $size : 1);
// FIXME: Tries to approximate replacing the space above the font
// baseline with the image
return $f * ($fontHeight - $baseline) + $this->_height;
}
/**
* Return image url
*
* @return string
*/
function get_image_url()
{
return $this->_img->get_image_url();
}
}
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