/**
* Returns the sizes for a given Kirby file
*
* Uses 'responsiveimages.sizes' option to let site owners overwrite the defaults
*
* @param File $file
* @param int $width Optional. Use when you want to force image to a certain width (retina/high-PPi usecase)
*
* @return array
*/
function kirby_get_sizes_array($file, $width = null)
{
// let users overwrite the sizes via config
$sizes_arr = kirby()->option('responsiveimages.sizes');
// let users overwrite the native image size via attribute
$img_width = (empty($width) ? $file->width() : $width) . 'px';
// default to the image width
if (empty($sizes_arr)) {
$sizes_arr = array(array('size_value' => '100vw', 'mq_value' => $img_width, 'mq_name' => 'max-width'), array('size_value' => $img_width));
} else {
$sizes_arr = array_map(function ($value) use($img_width) {
// allow config rules relative to native image size
return str_replace('$img_width', $img_width, $value);
}, $sizes_arr);
}
return $sizes_arr;
}
