import { EventEmitter, OnChanges, OnDestroy, SimpleChanges, TemplateRef } from '@angular/core';
import { EventsMap } from '../../constants/events';
import { IAllowDragFn, IAllowDropFn, ILevelPaddingFn, TreeDataOptions, TreeEvent, TreeModel, TreeNode, TreeUIOptions } from '../../models';
import { TreeDraggingTargetService } from '../../services/tree-dragging-target.service';
import { TreeNodeChildrenComponent } from '../tree-node-children/tree-node-children.component';
import { TreeViewportComponent } from '../tree-viewport/tree-viewport.component';
export declare class TreeComponent implements OnChanges, OnDestroy {
    treeDraggingTargetService: TreeDraggingTargetService;
    emitterMap: EventsMap;
    treeModel: TreeModel;
    UIOptions: TreeUIOptions;
    refreshTree: boolean;
    /**
     * source data
     */
    nodes: any[];
    /**
     * id of the node to be focused on
     */
    focusTarget: string;
    /**
     * id of the node to be activated
     */
    activateTarget: string;
    dataOptions: TreeDataOptions;
    allowDrag: boolean | IAllowDragFn;
    allowDrop: boolean | IAllowDropFn;
    levelPadding: number | ILevelPaddingFn;
    useVirtualScroll: boolean;
    referenceItemHeight: number;
    auditViewportUpdate?: number;
    nodeClass: (node: TreeNode) => string;
    enableAnimation: boolean;
    keepNodesExpanded: boolean;
    expand: EventEmitter<TreeEvent>;
    collapse: EventEmitter<TreeEvent>;
    toggleExpander: EventEmitter<TreeEvent>;
    activate: EventEmitter<TreeEvent>;
    deactivate: EventEmitter<TreeEvent>;
    focus: EventEmitter<TreeEvent>;
    blur: EventEmitter<TreeEvent>;
    initialized: EventEmitter<TreeEvent>;
    moveNode: EventEmitter<TreeEvent>;
    loadChildren: EventEmitter<TreeEvent>;
    changeFilter: EventEmitter<TreeEvent>;
    addNode: EventEmitter<TreeEvent>;
    removeNode: EventEmitter<TreeEvent>;
    className: boolean;
    loadingTemplate: TemplateRef<any>;
    expanderTemplate: TemplateRef<any>;
    treeNodeTemplate: TemplateRef<any>;
    treeNodeWrapperTemplate: TemplateRef<any>;
    treeNodeFullTemplate: TemplateRef<any>;
    viewportComponent: TreeViewportComponent;
    root: TreeNodeChildrenComponent;
    constructor(treeDraggingTargetService: TreeDraggingTargetService);
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    onKeydown($event: KeyboardEvent): void;
    onMousedown($event: MouseEvent): void;
    sizeChanged(): void;
}