BP_GOPP_Image_Editor_GS::set_resolution( int $resolution = null )

	public function set_resolution( $resolution = null ) {
		if ( null === $resolution ) {
			/**
			 * Filters the default PDF preview resolution setting.
			 *
			 * Applies only during initial editor instantiation, or when set_resolution() is run
			 * manually without the `$resolution` argument.
			 *
			 * set_resolution() has priority over the filter.
			 *
			 * @since BuddyBoss 1.4.0
			 *
			 * @param int    $resolution Resolution (DPI) of the PDF preview thumbnail.
			 * @param string $filename   The PDF file name.
			 */
			$resolution = apply_filters( 'gopp_editor_set_resolution', $this->default_resolution, $this->file );
			if ( ( $resolution = intval( $resolution ) ) <= 0 ) {
				$resolution = $this->default_resolution;
			}
		} else {
			$resolution = intval( $resolution );
		}
		if ( $resolution > 0 ) {
			$this->resolution = $resolution;
			return true;
		}
		return new WP_Error( 'invalid_image_resolution', __( 'Attempted to set PDF preview resolution to an invalid value.', 'buddyboss' ) );
	}