import { Container } from 'pixi.js';
import { Signal } from 'typed-signals';
import { CheckBox } from './CheckBox';
import { List, ListType } from './List';
export type RadioBoxOptions = {
    items: CheckBox[];
    type: ListType;
    elementsMargin: number;
    selectedItem?: number;
};
/**
 * Creates a container-based controlling wrapper for checkbox elements,
 * for them top behave as radio buttons.
 *
 * Only one checkbox/radio button can be selected at a time.
 *
 * List of items is passed as an array of {@link CheckBox} objects.
 * @example
 * new RadioGroup({
 *     items: [
 *          new CheckBox({
 *              style: {
 *                  unchecked: `switch_off.png`,
 *                  checked: `switch_on.png`,
 *              }
 *          }),
 *         new CheckBox({
 *              style: {
 *                  unchecked: `switch_off.png`,
 *                  checked: `switch_on.png`,
 *              }
 *          }),
 *          new CheckBox({
 *              style: {
 *                  unchecked: `switch_off.png`,
 *                  checked: `switch_on.png`,
 *              }
 *          }),
 *     ],
 *     type: 'vertical'
 * });
 */
export declare class RadioGroup extends Container {
    protected items: CheckBox[];
    /** {@link List}, that holds and control all inned checkboxes.  */
    innerView: List | undefined;
    /** Text value of the selected item. */
    value: string;
    /** ID of the selected item. */
    selected: number;
    /** Fires, when new item is selected. */
    onChange: Signal<(selectedItemID: number, selectedVal: string) => void>;
    protected options: RadioBoxOptions;
    constructor(options?: RadioBoxOptions);
    /**
     * Initiates a group.
     * @param options
     */
    init(options: RadioBoxOptions): void;
    /**
     * Add items to a group.
     * @param {CheckBox[]} items - array of {@link CheckBox} instances.
     */
    addItems(items: CheckBox[]): void;
    /**
     * Remove items from a group.
     * @param ids
     */
    removeItems(ids: number[]): void;
    /**
     * Select item by ID.
     * @param id
     */
    selectItem(id: number): void;
}
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