import { Id, Obj } from '../types';
import { ColumnType, DataGridProps, RowType } from '../components/dataGrid';
import { CurdColumn } from '../components/curd';
/**
 * 为列添加key
 * @param col
 * @param index
 */
export declare function setDefaultColumnKey<R extends Obj>(col: Pick<ColumnType<R>, 'key' | 'field'>, index: number): Id;
/**
 * 索引列
 * @param columns
 */
export declare function useColumnMap<C extends ColumnType<any> | CurdColumn<any>>(columns?: (C | symbol)[]): Map<Id, C>;
/**
 * 统一处理DataGrid列
 * @param param0
 */
export declare function useDataGridColumns<R extends RowType, V extends Id = Id>({ columns, selectable, childrenKey }: Pick<DataGridProps<R, V>, 'columns' | 'selectable' | 'childrenKey'>): {
    completedColumns: (symbol | ColumnType<R>)[] | undefined;
    columnMapByKey: Map<Id, ColumnType<R>>;
    flattedColumns: (symbol | ColumnType<R>)[];
};
/**
 * 渲染单元格内容
 * @param column
 * @param row
 * @param rowIndex
 * @param rows
 */
export declare function renderCell<R extends RowType>({ render, field }: Pick<ColumnType<R>, 'render' | 'field'>, row: R, rowIndex?: number, rows?: R[]): any;