public static function setDefault($params = null)
{
self::$defaults = array('type' => null, 'width' => null, 'height' => null, 'quality' => 90, 'function' => null, 'function_mode' => null, 'transparency' => true, 'background' => array('r' => 255, 'g' => 255, 'b' => 255));
if ($params instanceof JRegistry) {
$opts = array();
// output type ?
$imgcfg_type = $params->get('imgcfg_type', 0);
if (in_array($imgcfg_type, array(IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_GIF))) {
$opts['type'] = $imgcfg_type;
}
// function ?
$imgcfg_fn = $params->get('imgcfg_function', 'none_resize');
$imgcfg_fn = explode('_', $imgcfg_fn);
if (in_array($imgcfg_fn[0], self::$functions)) {
$opts['function'] = $imgcfg_fn[0];
if ($imgcfg_fn[0] == 'resize') {
if (isset($imgcfg_fn[1]) && in_array($imgcfg_fn[1], self::$modes)) {
$opts['function_mode'] = $imgcfg_fn[1];
} else {
$opts['function_mode'] = self::$modes[2];
}
}
}
// background
$imgcfg_background = $params->get('imgcfg_background', null);
if (!is_null($imgcfg_background)) {
$opts['background'] = $imgcfg_background;
}
// quality
$imgcfg_quality = $params->get('imgcfg_quality', null);
if ($imgcfg_quality != null && intval($imgcfg_quality) > 0 && intval($imgcfg_quality) < 100) {
$opts['quality'] = intval($imgcfg_quality);
}
// transparency
$imgcfg_transparency = $params->get('imgcfg_transparency', 1);
if ($imgcfg_transparency != null) {
$opts['transparency'] = $imgcfg_transparency ? true : false;
}
// dimension ?
$imgcfg_w = $params->get('imgcfg_width', 0);
$imgcfg_h = $params->get('imgcfg_height', 0);
if (intval($imgcfg_w) > 0) {
$opts['width'] = $imgcfg_w;
}
if (intval($imgcfg_h) > 0) {
$opts['height'] = $imgcfg_h;
}
self::$cache = $params->get('imgcfg_cache');
self::$cache_url = $params->get('imgcfg_cache_url');
// $this->initCache($cache_params);
}
self::$defaults = array_merge(self::$defaults, $opts);
}
