public function set_image($image)
{
if (is_file($image)) {
$image = path_to_url($image);
}
$style = array("background-image: url('{$image}')", 'background-position: center', 'background-size: cover');
$this->add_attribute('style', implode(';', $style));
return $this;
}
function guess_app_url()
{
$base_dir = str_replace("\\", '/', dirname($_SERVER['SCRIPT_NAME']));
$script_relative = str_replace("\\", '/', $_SERVER['SCRIPT_NAME']);
$script_absolute = str_replace("\\", '/', $_SERVER['SCRIPT_FILENAME']);
$doc_root = preg_replace("!{$script_relative}\$!", '', $script_absolute);
$base_url = preg_replace("!^{$doc_root}!", '', $base_dir);
return path_to_url($base_url);
}
public function set_source($source)
{
if (is_file($source)) {
$this->_realpath = $source;
$source = path_to_url($source);
$this->_attributes['src'] = $source;
} elseif (strpos($source, 'http') !== FALSE) {
$this->_attributes['src'] = $source;
}
return $this;
}
function gen_image_src($attachment_id, $width = false, $height = false, $crop = false)
{
// If user provide attachment url instead of attachment id
if (filter_var($attachment_id, FILTER_VALIDATE_URL)) {
$attachment_id = get_attachment_id_from_src($attachment_id);
}
// get the file path
$file = get_attached_file($attachment_id);
// validate attachment exist
if ($file == '') {
return '';
}
// calculate and set width/height if one of width or height is false.
if ($width == false xor $height == false) {
$img = wp_get_attachment_image_src($attachment_id, 'full');
if ($img != false) {
$img_ratio = $img[1] / $img[2];
if ($width == false) {
$width = $height * $img_ratio;
} else {
if ($height == false) {
$height = $width / $img_ratio;
}
}
}
}
// build the resized filename
$resize_extend = $width != false ? '-' . floor($width) : '';
$resize_extend .= $height != false ? 'x' . floor($height) : '';
$resize_extend .= $resize_extend != '' && $crop != false ? '-cropped' : '';
$resized_file = $cachefile = substr_replace($file, $resize_extend, strrpos($file, '.'), 0);
// check the resized file existance
$cache_exist = file_exists($resized_file);
if (!$cache_exist) {
$editor = wp_get_image_editor($file);
$editor->resize($width, $height, $crop);
$new_image_info = $editor->save($resized_file);
$url = path_to_url($new_image_info['path']);
} else {
$url = path_to_url($resized_file);
}
return $url;
}
