public function cacheIt($width = null, $height = null, $mode = 'equal')
{
$w = isset($width) ? $width : $this->m_width;
$h = isset($height) ? $height : $this->m_height;
$p = new Picture($this->m_filename);
if ($w == null && $h == null) {
$mode = 'equal';
}
$search_filename = Picture::getPictureFilename($this->m_filename, $w, $h, $mode);
if (!file_exists($search_filename)) {
switch ($mode) {
case 'redim':
$p->dimensionTo($w, $h);
break;
case 'crop':
$p->cropTo($w, $h);
break;
}
$p->toFile($search_filename);
}
if (file_exists($search_filename)) {
list($width, $height, $type, $attr) = getimagesize($search_filename);
return array('width' => $width, 'height' => $height);
}
}