import { CommonStore } from '@orca-fe/pocket';
export declare type PositionType = [number, number];
export declare type ViewportType = {
    zoom: number;
    offset: PositionType;
};
export default class ViewportMgr extends CommonStore<ViewportType> {
    static useViewport(_viewportMgr?: ViewportMgr, defaultState?: Partial<ViewportType>): ViewportMgr;
    constructor(defaultState?: Partial<ViewportType>);
    setOffset(offset: PositionType, animatiion?: boolean): void;
    setZoom(zoom: number, animatiion?: boolean): void;
    setViewport(viewport: ViewportType, animatiion?: boolean): void;
    getViewport(): {
        zoom: number;
        offset: PositionType;
    };
}