/// <reference types="lodash" />
import React, { CSSProperties } from 'react';
import { DragState } from 'rc-dock';
import { BlockStageBase, StageProps } from './BlockStageBase';
import { GestureState } from 'rc-dock/lib';
interface StageState {
    zoom: number;
    contentWidth: number;
    contentHeight: number;
    stageWidth: number;
    stageHeight: number;
}
export declare class BlockStage extends BlockStageBase<StageState> {
    private _rootNode;
    private getRootRef;
    private _scrollNode;
    private getScrollLayerRef;
    private _bgNode;
    private getBgRef;
    getRefElement(): HTMLElement;
    getRootElement(): HTMLElement;
    private _selectRectNode;
    private getSelectRectRef;
    private _miniWindowNode;
    private getMiniWindowRef;
    constructor(props: StageProps);
    resizeObserver: any;
    componentDidMount(): void;
    _popupCount: number;
    static findOpenPopups(): number;
    onSelectRectDragStart: (e: DragState) => void;
    onDragSelectMove: (e: DragState) => void;
    onDragSelectEnd: (e: DragState) => void;
    onRightDragStart: (e: DragState) => void;
    onRightDragMove: (e: DragState) => void;
    onRightDragEnd: (e: DragState) => void;
    onDragOver: (e: DragState) => void;
    onDrop: (e: DragState) => void;
    handleResize: () => void;
    _scrollX: number;
    _scrollY: number;
    _pendingScroll: [number, number];
    handleScroll: (event: UIEvent) => void;
    componentDidUpdate(prevProps: Readonly<StageProps>, prevState: Readonly<StageState>, snapshot?: any): void;
    _dragScrollPos?: [number, number];
    onZoomWindowDragStart: (e: DragState) => void;
    onDragMoveScroll: (e: {
        dx: number;
        dy: number;
    }, reverseDrag?: boolean) => void;
    onZoomWindowDragEnd: (e: DragState) => void;
    _baseZoomBeforeGesture: number;
    onGestureStart: (e: GestureState) => boolean;
    onGestureMove: (e: GestureState) => void;
    getMiniStageStyle(): {
        miniStageStyle?: CSSProperties;
        minStageBgStyle?: CSSProperties;
        miniWindowStyle?: CSSProperties;
    };
    onWheel: (e: WheelEvent) => void;
    zoomIn: (event: any) => void;
    zoomOut: (event: any) => void;
    changeZoom(newZoom: number, event?: {
        clientX: number;
        clientY: number;
    }): void;
    onResize: () => void;
    onResizeDebounce: import("lodash/debounce").Debounce;
    measureChildren: () => void;
    measureChildrenDebounce: import("lodash/debounce").Debounce;
    onChildrenSizeChanged(): void;
    renderImpl(): JSX.Element;
    onKeyDown: (e: React.KeyboardEvent<Element>) => void;
    componentWillUnmount(): void;
}
export {};