import { WaterfallProps } from '../types/waterfall';
import { Nullable } from '../types/util';
export declare function useCalculateCols(props: WaterfallProps): {
    waterfallWrapper: import('vue').Ref<Nullable<HTMLElement>, Nullable<HTMLElement>>;
    wrapperWidth: import('vue').Ref<number, number>;
    colWidth: import('vue').ComputedRef<number>;
    cols: import('vue').ComputedRef<number>;
    offsetX: import('vue').ComputedRef<number>;
};