BP_GOPP_Image_Editor_GS::get_size()

	public function get_size() {
		// If size hasn't been set yet and have loaded.
		if ( null === $this->size && $this->mime_type ) {
			$this->update_size( 0, 0 );
			// Do a temporary full preview to get size of image.
			$dirname  = untrailingslashit( get_temp_dir() );
			$filename = $dirname . '/' . wp_unique_filename( $dirname, 'gopp_size.jpg' );
			if ( $cmd = self::gs_cmd( $this->get_gs_args( $filename ) ) ) {
				$return_var = -1;
				$output     = array();
				exec( $cmd, $output, $return_var );
				if ( 0 === $return_var && ( $size = @ getimagesize( $filename ) ) ) {
					$this->update_size( $size[0], $size[1] );
				}
				@ unlink( $filename );
			}
		}
		return $this->size;
	}