import { Root } from './root';
import { Section } from './section';
import { StatefulEventBus } from './stateful-event-bus';
interface NodeProps {
    /**
     * 原始索引，即一维数组中的索引
     */
    childIndex: number;
    /**
     * 在列里的顺序
     */
    order: number;
    /**
     * 位于哪一列
     */
    col: number;
    height: number;
}
type NodeState = {
    top: number;
    width: number;
    height: number;
    layouted: boolean;
    scrollTop: number;
};
export declare const NodeEvents: {
    Resize: symbol;
};
export declare class Node extends StatefulEventBus<NodeState> {
    root: Root;
    section: Section;
    id: string;
    /**
     * 原始索引，即一维数组中的索引
     */
    childIndex: number;
    /**
     * 在列里的顺序
     */
    order: number;
    /**
     * 位于哪一列
     */
    col: number;
    constructor(root: Root, section: Section, props: NodeProps);
    private setupSubscriptions;
    /**
     * 测量节点的尺寸信息
     */
    measure(): Promise<{
        width: number;
        height: number;
    }>;
    /**
     * 更新节点所在列后面的节点的位置
     */
    updateBehindNodesPosition(): void;
    /**
     * 节点是否可见
     */
    get isInRange(): boolean;
}
export {};