import React from 'react';
import PropTypes from 'prop-types';
import { HeadCellSortHandler } from '@splunk/react-ui/Table';
import { ComponentProps } from '../utils/types';
/** @public */
type HeadCellSortDir = 'asc' | 'desc' | 'none';
interface TreeGridHeadCellPropsBase {
    /** Align the text in the label. */
    align?: 'left' | 'center' | 'right';
    children?: React.ReactNode;
    /**
     * Stable id for this column. In TreeGrid, this is required for the hierarchy column and
     * should also be provided for any column that participates in features that rely on stable
     * column identity.
     */
    columnId?: string;
    /**
     * A React ref which is set to the DOM element when the component mounts and null when it
     * unmounts.
     */
    elementRef?: React.Ref<HTMLTableCellElement>;
    /**
     * A callback invoked when this head cell is clicked. If provided, the head cell is sortable
     * and renders the appropriate user interface.
     */
    onSort?: HeadCellSortHandler;
    /**
     * The current sort direction of this column.
     */
    sortDir?: HeadCellSortDir;
    /**
     * The sort key passed to `onSort`, following the same pattern as `Table.HeadCell`.
     */
    sortKey?: string;
    /**
     * The width of the column in pixels.
     */
    width?: number | 'auto';
}
type TreeGridHeadCellProps = ComponentProps<TreeGridHeadCellPropsBase, 'th', 'onClick' | 'onKeyDown'>;
declare function HeadCell({ align, children, columnId, elementRef, onSort, sortDir, sortKey, width, ...otherProps }: TreeGridHeadCellProps): React.JSX.Element;
declare namespace HeadCell {
    var propTypes: {
        align: PropTypes.Requireable<string>;
        children: PropTypes.Requireable<PropTypes.ReactNodeLike>;
        columnId: PropTypes.Requireable<string>;
        elementRef: PropTypes.Requireable<object>;
        onSort: PropTypes.Requireable<(...args: any[]) => any>;
        sortDir: PropTypes.Requireable<string>;
        sortKey: PropTypes.Requireable<string>;
        width: PropTypes.Requireable<NonNullable<string | number | null | undefined>>;
    };
}
export default HeadCell;
export type { HeadCellSortDir, HeadCellSortHandler };