/**
 * Works like a typical button control, but instead of a square button the
 * clickable surface is within a circle.  This type of button does NOT fill
 * the parent container.  Its size is determined by the sizing parameter.
 *
 * #### Examples:
 *
 * ```javascript
 * import {ButtonCircle} from 'gadgets';
 *
 * <ButtonCircle
 *     iconName="times"
 *     sizing={Sizing.small}
 *     onClick={someFunction}
 *     style={{
 *         color: "green",
 *         backgroundColor: "orange",
 *         borderColor: "green"
 *     }}
 * />
 * ```
 *
 * #### Events
 * - `onClick()` - This callback is invoked when the control is clicked by the
 * user
 *
 * #### Styles
 * - `ui-button-circle` - A top level style placed on the `<div>` container for
 * the control.
 *
 * #### Properties
 * - `iconName="bomb" {string}` - the name of the font awesome icon used with
 * this button
 * - `kbActivate="" {string}` - Invokes the keyboard handler for the button for the
 * given sequence.
 * - `sizing: Sizing (Sizing.normal)` - Allows one to change the size of the
 * icon within the button.  See the shared props object for the `Sizing`
 * enumeration.
 * - `style {any}` - custom styles applied to the icon image within the circle
 *   - `backgroundColor {string}` - The color of the background of the button
 *   - `borderColor="black" {string}` - The color of the border around the
 *   circle.
 *   - `color="black" {string}` - the color of the button icon
 *
 * @module ButtonCircle
 */
import * as React from "react";
import { ButtonProps, ButtonState } from "../button/Button";
import { BaseComponent } from "../shared";
export interface ButtonCircleProps extends ButtonProps {
    onClick?: (e: React.MouseEvent<HTMLDivElement>) => void;
}
export declare type ButtonCircleState = ButtonState;
export declare class ButtonCircle extends BaseComponent<ButtonCircleProps, ButtonCircleState> {
    static readonly defaultProps: ButtonCircleProps;
    constructor(props: ButtonCircleProps);
    render(): JSX.Element;
}
export default ButtonCircle;