import { EventSource } from '../../../treb-utils/src/index';
export interface ScaleEvent {
    type: 'scale';
    value: number;
    keep_focus?: boolean;
}
/**
 * updated scale control, broken out. this is based on what we did for
 * project planning, which worked out rather nicely.
 */
export declare class ScaleControl extends EventSource<ScaleEvent> {
    container: HTMLElement;
    private input;
    private slider;
    private scale;
    private format;
    private timeout;
    constructor(container: HTMLElement);
    Tick(value: number): void;
    UpdateScale(scale: number, notify?: boolean, keep_focus?: boolean): void;
}