import { IMCellIndex } from './typings';
export declare const UN_REACHABLE_CELL: {
    readonly rowIndex: number;
    readonly colIndex: number;
};
export declare const DEFAULT_ADD_CELL: {
    height: number;
    offset: number;
    page_number: number;
    text: string;
    width: number;
    x: number;
    y: number;
};
export declare function convertActivatedToEditing(pair: [IMCellIndex, IMCellIndex]): IMCellIndex;
export declare function getCellIndexFromEle(e: HTMLElement): IMCellIndex;
export declare function isIE(): boolean;