import * as React from 'react';
import './LetterSpacingDropdown.less';
declare type LetterSpacingDropdownProps = {
    onClick?: (...args: any[]) => any;
    editor?: any;
    letterSpacingList?: any[];
};
declare class LetterSpacingDropdown extends React.Component<LetterSpacingDropdownProps, {}> {
    dropDown: any;
    onRef: (ref: any) => void;
    /**
     * 下拉列表改变回调
     * @params type 下拉列表中选中的key
     */
    onChange: (type: any) => void;
    /**
     * 获取当前选中区域字间距大小
     */
    getLetterSpacing: () => string;
    render(): JSX.Element;
}
export default LetterSpacingDropdown;