/**
* Imports an SVG file as a new <symbol>
*
* @param string $file The name of the file to import from
* @return void
*/
private final function _createSymbol($file, $id)
{
if (!is_string($file)) {
throw new \InvalidArgumentException(sprintf('%s expects a string but got a %s', __MEHTOD__, gettype($file)));
} else {
if (!file_exists($file)) {
throw new \Exception(sprintf('%s not found', $file), 1);
}
}
// Create a new SVG from the file
$svg = parent::loadSVG($file);
$symbol = $this->documentElement->appendChild($this->createElement('symbol'));
$symbol->id = is_string($id) ? $id : basename($file, '.svg');
// Attempt to set `viewBox` from either SVG's viewBox or dimensions
if (isset($svg->documentElement->viewBox)) {
$symbol->viewBox = $svg->documentElement->viewBox;
} else {
if (isset($svg->documentElement->width, $svg->documentElement->height)) {
$symbol->viewBox = "0 0 {$svg->documentElement->width} {$svg->documentElement->height}";
}
}
// Import and append SVG's childNodes
foreach ($svg->documentElement->childNodes as $node) {
$symbol->appendChild($this->importNode($node, true));
}
}
