/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { CdkVirtualScrollViewport } from '@angular/cdk/scrolling';
import { OnChanges, SimpleChanges } from '@angular/core';
import { VtsTreeVirtualNodeData } from './node';
import { VtsTreeNodeOutletDirective } from './outlet';
import { VtsTreeView } from './tree';
import * as i0 from "@angular/core";
export declare class VtsTreeVirtualScrollViewComponent<T, F> extends VtsTreeView<T, F> implements OnChanges {
    itemSize: number;
    readonly nodeOutlet: VtsTreeNodeOutletDirective;
    readonly virtualScrollViewport: CdkVirtualScrollViewport;
    vtsItemSize: number;
    vtsMinBufferPx: number;
    vtsMaxBufferPx: number;
    nodes: Array<VtsTreeVirtualNodeData<T>>;
    renderNodeChanges(data: T[] | ReadonlyArray<T>): void;
    private createNode;
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<VtsTreeVirtualScrollViewComponent<any, any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<VtsTreeVirtualScrollViewComponent<any, any>, "vts-tree-virtual-scroll-view", ["vtsTreeVirtualScrollView"], { "vtsItemSize": { "alias": "vtsItemSize"; "required": false; }; "vtsMinBufferPx": { "alias": "vtsMinBufferPx"; "required": false; }; "vtsMaxBufferPx": { "alias": "vtsMaxBufferPx"; "required": false; }; }, {}, never, never, false, never>;
}