import { utils } from "pixi.js";
import { DTreeNode } from "./d-tree-node";
import { DTreeDataSelectionParent } from "./d-tree-data-selection-parent";
import { DTreeDataSelection, DTreeDataSelectionOptions, DTreeDataSelectionType } from "./d-tree-data-selection";
export declare class DTreeDataSelectionSingle<NODE extends DTreeNode> extends utils.EventEmitter implements DTreeDataSelection<NODE> {
    protected _parent: DTreeDataSelectionParent<NODE>;
    protected _node: NODE | null;
    constructor(parent: DTreeDataSelectionParent<NODE>, options?: DTreeDataSelectionOptions<NODE>);
    get type(): DTreeDataSelectionType;
    get first(): NODE | null;
    get last(): NODE | null;
    get(index: number): NODE | null;
    add(target: NODE): boolean;
    remove(target: NODE): boolean;
    toggle(target: NODE): boolean;
    clear(): boolean;
    clearAndAdd(target: NODE): boolean;
    clearAndAddAll(targets: NODE[]): boolean;
    contains(target: NODE): boolean;
    size(): number;
    isEmpty(): boolean;
    each(iteratee: (node: NODE) => boolean | void): void;
    toArray(): NODE[];
    protected onChange(): void;
    onNodeChange(nodes: NODE[]): void;
    protected newNode(items: NODE[], existing: NODE | null): NODE | null;
}