import { TextCue } from './text-cue';
import type { VTTRegion } from './vtt-region';
declare const CueBase: typeof TextCue;
/**
 * @see {@link https://www.w3.org/TR/webvtt1/#model-cues}
 * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue}
 */
export declare class VTTCue extends CueBase {
    /**
     * A `VTTRegion` object describing the video's sub-region that the cue will be drawn onto,
     * or `null` if none is assigned.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/region}
     */
    region: VTTRegion | null;
    /**
     * The cue writing direction.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/vertical}
     */
    vertical: '' | 'rl' | 'lr';
    /**
     * Returns `true` if the `VTTCue.line` attribute is an integer number of lines or a percentage
     * of the video size.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/snapToLines}
     */
    snapToLines: boolean;
    /**
     * Returns the line positioning of the cue. This can be the string `'auto'` or a number whose
     * interpretation depends on the value of `VTTCue.snapToLines`.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/line}
     */
    line: number | 'auto';
    /**
     * Returns an enum representing the alignment of the `VTTCue.line`.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/lineAlign}
     */
    lineAlign: 'start' | 'center' | 'end';
    /**
     * Returns the indentation of the cue within the line. This can be the string `'auto'` or a
     * number representing the percentage of the `VTTCue.region`, or the video size if `VTTCue`.region`
     * is `null`.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/position}
     */
    position: number | 'auto';
    /**
     * Returns an enum representing the alignment of the cue. This is used to determine what
     * the `VTTCue.position` is anchored to. The default is `'auto'`.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/positionAlign}
     */
    positionAlign: 'line-left' | 'center' | 'line-right' | 'auto';
    /**
     * Returns a double representing the size of the cue, as a percentage of the video size.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/size}
     */
    size: number;
    /**
     * Returns an enum representing the alignment of all the lines of text within the cue box.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/API/VTTCue/align}
     */
    align: 'start' | 'center' | 'end' | 'left' | 'right';
    /**
     * Additional styles associated with the cue.
     */
    style?: Record<string, string>;
}
export {};