import React from 'react';
import type { ColumnItem } from '../dataGrid';
declare type ColDefCacheItem = {
    width: number;
};
declare const initialState: {
    columns: ColumnItem[];
    colDefCache: Map<string | number, ColDefCacheItem>;
};
export declare const useColumnReducer: () => {
    state: {
        columns: ColumnItem[];
        colDefCache: Map<string | number, ColDefCacheItem>;
    };
    setters: {
        setState: (newState: typeof initialState) => void;
        updateState: (diff: Partial<typeof initialState>) => void;
        setColDefCache: (key: string, value: ColDefCacheItem) => void;
    };
};
export declare const ColumnContext: React.Context<{
    columns: ColumnItem[];
    colDefCache: Map<string | number, ColDefCacheItem>;
}>;
export declare const useColumnContext: () => {
    columns: ColumnItem[];
    colDefCache: Map<string | number, ColDefCacheItem>;
};
export declare const ColumnContextSetter: React.Context<{
    setState: (newState: typeof initialState) => void;
    updateState: (diff: Partial<typeof initialState>) => void;
    setColDefCache: (key: string, value: ColDefCacheItem) => void;
}>;
export declare const useColumnSetter: () => {
    setState: (newState: typeof initialState) => void;
    updateState: (diff: Partial<typeof initialState>) => void;
    setColDefCache: (key: string, value: ColDefCacheItem) => void;
};
export {};