import { DisplayOptions, DisplayData } from "./types.js";
/**
 * @class Abstract display backend module
 * @private
 */
export default abstract class Backend {
    _options: DisplayOptions;
    getContainer(): HTMLElement | null;
    setOptions(options: DisplayOptions): void;
    abstract schedule(cb: () => void): void;
    abstract clear(): void;
    abstract draw(data: DisplayData, clearBefore: boolean): void;
    abstract computeSize(availWidth: number, availHeight: number): [number, number];
    abstract computeFontSize(availWidth: number, availHeight: number): number;
    abstract eventToPosition(x: number, y: number): [number, number];
}