import { IStoreState } from '../../index.data';
export declare class HScrollBarHelper {
    barOffset: number;
    barSize: number;
    private _allVisibleColumnWidth;
    private state;
    constructor(state: IStoreState);
    getBarOffset(): number;
    getBarSize(): number;
    getThumbOffset(): number;
    getThumbSize(): number;
}
export declare function get_allVisibleColumnWidth_exceptFrozen(state: IStoreState): number;
/**
 * 找到某个区域内的全部可加载列
 */
export declare function getAllLoadableColumnFlags(state: IStoreState): boolean[];
export declare function _getAllLoadableColumnFlags(state: IStoreState, loadingWidth: number, scrollX: number): boolean[];