import { DTreeDataMapped } from "./d-tree-data-mapped";
import { DTreeNode } from "./d-tree-node";
import { DTreeNodeAccessor } from "./d-tree-node-accessor";
export interface DTreeDataMppedImplParent<NODE extends DTreeNode> {
    readonly nodes: NODE[];
    readonly accessor: DTreeNodeAccessor<NODE>;
    isExpanded(node: NODE): boolean;
}
export declare class DTreeDataMappedImpl<NODE extends DTreeNode> implements DTreeDataMapped<NODE> {
    protected readonly _parent: DTreeDataMppedImplParent<NODE>;
    protected readonly _nodes: NODE[];
    protected readonly _levels: number[];
    protected readonly _reverse: boolean;
    protected _isDirty: boolean;
    constructor(parent: DTreeDataMppedImplParent<NODE>, reverse: boolean);
    get nodes(): NODE[];
    get levels(): number[];
    toDirty(): void;
    size(): number;
    each(iteratee: (value: NODE, index: number) => boolean | void, from?: number, to?: number): void;
    protected update(): void;
    protected newNodes(parent: DTreeDataMppedImplParent<NODE>, parentNodes: NODE[], index: number, level: number, nodes: NODE[], levels: number[], reverse: boolean, toChildren: (node: NODE) => NODE[] | null | undefined): number;
}