import { Container, utils } from "pixi.js";
import { DBase } from "./d-base";
import { DMenu } from "./d-menu";
import { DMenuItemBase } from "./d-menu-item-base";
import { DOnOptions } from "./d-on-options";
export declare const DMenuSidedSelectionType: {
    readonly NONE: 0;
    readonly SINGLE: 1;
    readonly SINGLE_ONCE: 2;
};
export type DMenuSidedSelectionType = (typeof DMenuSidedSelectionType)[keyof typeof DMenuSidedSelectionType];
/**
 * {@link DMenuSidedSelection} events.
 */
export interface DMenuSidedSelectionEvents<EMITTER> {
    /**
     * Triggered when a selection is changed.
     *
     * @param emitter an emitter
     */
    change(emitter: EMITTER): void;
}
/**
 * {@link DMenuSidedSelection} "on" options.
 */
export interface DMenuSidedSelectionOnOptions<EMITTER> extends Partial<DMenuSidedSelectionEvents<EMITTER>>, DOnOptions {
}
/**
 * {@link DMenuSidedSelection} options.
 */
export interface DMenuSidedSelectionOptions<EMITTER = any> {
    /**
     * @deprecated in favor of {@link type}
     */
    mode?: DMenuSidedSelectionType | keyof typeof DMenuSidedSelectionType;
    /**
     * A selection type.
     */
    type?: DMenuSidedSelectionType | keyof typeof DMenuSidedSelectionType;
    on?: DMenuSidedSelectionOnOptions<EMITTER>;
    filter?: (item: DBase | null) => boolean;
}
export declare class DMenuSidedSelection<VALUE> extends utils.EventEmitter {
    protected _content: Container;
    protected _item: DMenuItemBase<VALUE> | null;
    protected _isDirty: boolean;
    protected _type: DMenuSidedSelectionType;
    protected _filter: (item: DMenuItemBase<VALUE> | null) => boolean;
    constructor(content: Container, options?: DMenuSidedSelectionOptions);
    first(): DMenuItemBase<VALUE> | null;
    toDirty(): void;
    update(): void;
    protected hasMenu(child: any): child is {
        menu: DMenu<any>;
    };
    protected update_(root: Container): void;
    add(item: DMenuItemBase<VALUE>): void;
    set(item: DMenuItemBase<VALUE>): void;
    get(index: number): DMenuItemBase<VALUE> | null;
    getIndex(index: number): number | null;
    size(): number;
    isEmpty(): boolean;
    remove(item: DBase): void;
    clear(): void;
    protected getFilterDefault(): (item: DMenuItemBase<VALUE> | null) => boolean;
    protected set_(item: DMenuItemBase<VALUE> | null, emit: boolean): void;
    protected setState(item: DBase | null, mode: DMenuSidedSelectionType, isOn: boolean): void;
}