/**
* 图像处理接口（可持久化存储缩略图）
* func ImageMogrifyAs(<DestKey>, <SourceImageDownloadURL>, <opts>, <callbackFunc>) => Entry
* opts = {
* "thumbnail": <ImageSizeGeometry>,
* "gravity": <GravityType>, =NorthWest, North, NorthEast, West, Center, East, SouthWest, South, SouthEast
* "crop": <ImageSizeAndOffsetGeometry>,
* "quality": <ImageQuality>,
* "rotate": <RotateDegree>,
* "format": <DestinationImageFormat>, =jpg, gif, png, tif, etc.
* "auto_orient": <TrueOrFalse>
* }
*/
public function ImageMogrifyAs($key, $source_img_url, $opts)
{
$mogrifyParams = QBox_FileOp_mkImageMogrifyParams($opts);
return $this->saveAs($key, $source_img_url, $mogrifyParams);
}
function QBox_FileOp_ImageMogrifyPreviewURL($src_img_url, $opts)
{
return $src_img_url . '?' . QBox_FileOp_mkImageMogrifyParams($opts);
}