import { MarkerEventKey, MarkerEventBus } from './MarkerEvent';
/**
 * 单个标签实例
 */
interface LabelInstance {
    id: string;
    el: HTMLDivElement;
    theme: string;
    data?: any;
    notCreateElement?: boolean;
    unload?: any;
}
/**
 * 主题配置项
 */
interface ThemeOptions {
    /**
     * 创建标签 DOM 内容的方法
     */
    createElement: (el: HTMLDivElement, context: {
        id: string;
        theme: string;
        data: any;
    }, options: ThemeOptions) => any;
    /**
     * 可选配置，如偏移量
     */
    options?: {
        offset?: {
            x?: number;
            y?: number;
        };
    };
}
/**
 * 标签添加时的参数
 */
interface LabelOptions {
    id: string;
    lon: number;
    lat: number;
    height?: number;
    theme: string;
    show?: boolean;
    notCreateElement?: boolean;
    style?: {
        [key: string]: string;
    };
}
export { LabelOptions, LabelInstance, ThemeOptions };
/**
 * 自定义事件与 DOM 事件的映射
 */
export declare const DOM_EVENT_MAP: Record<MarkerEventKey, keyof HTMLElementEventMap>;
interface OcclusionOptions {
    enabled: boolean;
    throttleMs: number;
    distanceEpsilon: number;
}
type OcclusionCheckReason = 'label-missing' | 'invalid-coordinate' | 'screen-position-undefined' | 'runtime-missing' | 'pick-unsupported' | 'pick-empty' | 'pick-error' | 'distance-compare';
interface OcclusionCheckLog {
    timestamp: number;
    id: string;
    lon?: number;
    lat?: number;
    height?: number;
    occluded: boolean;
    reason: OcclusionCheckReason;
    epsilon?: number;
    labelDistance?: number;
    pickedDistance?: number;
}
/**
 * 用于管理 Cesium HTML 标签的池，支持主题渲染、事件分发、动态更新等功能
 */
export declare class HtmlOverlayLabelPool {
    private viewer;
    private Cesium;
    private container;
    private labels;
    private activeIds;
    private occludedIds;
    private _updateFn;
    private _cameraChangedFn;
    private themes;
    occlusionCheckLogs: OcclusionCheckLog[];
    private occlusionLogEnabled;
    private occlusionLogMax;
    private occlusionOptions;
    private _occlusionTimer;
    private _lastOcclusionAt;
    private _occlusionChecking;
    private _occlusionPending;
    eventBus: MarkerEventBus;
    openWheel: boolean;
    /**
     * 构造函数
     * @param Cesium Cesium 命名空间
     * @param viewer Cesium Viewer 实例
     * @param containerId HTML 容器 ID（默认："html-label-container"）
     * @param eventBus 可选：自定义事件总线
     */
    constructor(Cesium: any, viewer: any, containerId?: string, eventBus?: MarkerEventBus, openWheel?: boolean);
    /**
     * 创建标签容器
     */
    private _createContainer;
    /**
     * 注册标签主题
     */
    registerTheme(themeName: string, options: ThemeOptions): void;
    /**
     * 添加单个标签
     */
    add(data: any, options: LabelOptions): void;
    /**
     * 批量添加标签
     */
    addBatch(items: Array<{
        data: any;
        options: LabelOptions;
    }>): void;
    /**
     * 根据 ID 批量移除标签
     */
    removeByIds(ids: string[]): void;
    unloadByLabel(label: LabelInstance): void;
    /**
     * 移除所有标签
     */
    removeAll(): void;
    /**
     * 更新标签的数据并刷新内容
     */
    update(id: string, newData: any): void;
    /**
     * 根据 ID 批量隐藏标签
     */
    hideByIds(ids: string[]): void;
    /**
     * 隐藏所有标签
     */
    hideAll(): void;
    /**
     * 条件过滤隐藏标签
     */
    hideFilter(filter: (data: any) => boolean): void;
    /**
     * 根据 ID 显示标签
     */
    showByIds(ids: string[]): void;
    /**
     * 检查标签是否存在
     */
    has(id: string): boolean;
    /**
     * 清空活跃 ID 列表（不影响 DOM）
     */
    reset(): void;
    /**
     * 清理当前未活跃的标签（隐藏而不移除 DOM）
     */
    cleanup(): void;
    /**
     * 经纬度 -> 自动地形高度修正 -> Cartesian3 -> 屏幕坐标
     */
    toWindowPositionByLonLat(lon: number, lat: number): Promise<any>;
    /**
     * 坐标转换：经纬度 -> 屏幕像素坐标
     */
    toWindowCoordinates(position: any): any;
    /**
     * 检查经纬度是否有效
     * @param lon 经度
     * @param lat 纬度
     * @returns 是否有效
     */
    private _isValidCoordinate;
    /**
     * 每帧刷新所有活跃标签的位置
     */
    private _update;
    private _scheduleOcclusionCheck;
    private _pushOcclusionLog;
    private _computeLabelOccluded;
    runOcclusionCheckNow(): void;
    setOcclusionEnabled(enabled: boolean): void;
    getOcclusionOptions(): OcclusionOptions;
    setOcclusionOptions(options: Partial<Pick<OcclusionOptions, 'throttleMs' | 'distanceEpsilon'>>): void;
    setOcclusionLogEnabled(enabled: boolean, clearExisting?: boolean): void;
    /**
     * 销毁标签池，清理监听器和 DOM
     */
    destroy(): void;
}