import { AfterViewInit, EventEmitter } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import { EditorProvider } from '../core/edit-provider';
import { CheckboxBaseDirective } from '../checkbox/checkbox-base.directive';
import * as i0 from "@angular/core";
/**
 * **Ignite UI for Angular Radio Button** -
 * [Documentation](https://www.infragistics.com/products/ignite-ui-angular/angular/components/radio_button.html)
 *
 * The Ignite UI Radio Button allows the user to select a single option from an available set of options that are listed side by side.
 *
 * Example:
 * ```html
 * <igx-radio>
 *   Simple radio button
 * </igx-radio>
 * ```
 */
export declare class IgxRadioComponent extends CheckboxBaseDirective implements AfterViewInit, ControlValueAccessor, EditorProvider {
    /** @hidden @internal */
    blurRadio: EventEmitter<any>;
    /**
     * Returns the class of the radio component.
     * ```typescript
     * let radioClass = this.radio.cssClass;
     * ```
     *
     * @memberof IgxRadioComponent
     */
    cssClass: string;
    /**
     * Sets/gets  the `checked` attribute.
     * Default value is `false`.
     * ```html
     * <igx-radio [checked]="true"></igx-radio>
     * ```
     * ```typescript
     * let isChecked =  this.radio.checked;
     * ```
     *
     * @memberof IgxRadioComponent
     */
    set checked(value: boolean);
    get checked(): boolean;
    /**
     * Sets/gets  the `disabled` attribute.
     * Default value is `false`.
     * ```html
     * <igx-radio disabled></igx-radio>
     * ```
     * ```typescript
     * let isDisabled =  this.radio.disabled;
     * ```
     *
     * @memberof IgxRadioComponent
     */
    disabled: boolean;
    /**
     * Sets/gets whether the radio button is invalid.
     * Default value is `false`.
     * ```html
     * <igx-radio invalid></igx-radio>
     * ```
     * ```typescript
     * let isInvalid =  this.radio.invalid;
     * ```
     *
     * @memberof IgxRadioComponent
     */
    invalid: boolean;
    /**
     * Sets/gets whether the radio component is on focus.
     * Default value is `false`.
     * ```typescript
     * this.radio.focus = true;
     * ```
     * ```typescript
     * let isFocused =  this.radio.focused;
     * ```
     *
     * @memberof IgxRadioComponent
     */
    focused: boolean;
    /**
     * @hidden
     * @internal
     */
    _changed(event: Event): void;
    /**
     * @hidden
     */
    _onCheckboxClick(): void;
    /**
     * Selects the current radio button.
     * ```typescript
     * this.radio.select();
     * ```
     *
     * @memberof IgxRadioComponent
     */
    select(): void;
    /**
     * Deselects the current radio button.
     * ```typescript
     * this.radio.deselect();
     * ```
     *
     * @memberof IgxRadioComponent
     */
    deselect(): void;
    /**
     * Checks whether the provided value is consistent to the current radio button.
     * If it is, the checked attribute will have value `true`;
     * ```typescript
     * this.radio.writeValue('radioButtonValue');
     * ```
     */
    writeValue(value: any): void;
    /**
     * @hidden
     */
    onBlur(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<IgxRadioComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<IgxRadioComponent, "igx-radio", never, { "checked": { "alias": "checked"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "invalid": { "alias": "invalid"; "required": false; }; }, {}, never, ["*"], true, never>;
    static ngAcceptInputType_checked: unknown;
    static ngAcceptInputType_disabled: unknown;
    static ngAcceptInputType_invalid: unknown;
}