import { Viewer } from "cesium";
export declare const colorIsolate: string;
export declare const colorDefaultByTask = "rgba(240,240,240,1)";
export declare const createUUID: () => string;
export declare const rgbaToHex: (r: number, g: number, b: number, a: number) => string;
export declare const hexToCesiumColor: (hex: string, opacity?: number) => string;
export declare const rgbaToCesiumFormat: (r: number, g: number, b: number, a: number) => {
    red: number;
    green: number;
    blue: number;
    alpha: number;
};
export declare const colorIsolateCesium: {
    red: number;
    green: number;
    blue: number;
    alpha: number;
};
/**
    * Chặn các ký tự không hợp lệ và chỉ cho phép nhập số nguyên
 */
export declare const restrictToIntegerInput: (event: KeyboardEvent) => void;
/**
 * Chuẩn hóa mã màu HEX.
    */
export declare const normalizeHexColor: (hexColor: string) => string;
/**
 * Chuẩn hóa mã màu HEX với Opacity.
    */
export declare const convertHexWithOpacity: (hex: string, opacity: number) => string;
/**
* Lấy mã màu từ localStorage hoặc trả về giá trị mặc định.

*/
export declare const getColorFromLocalStorage: (defaultColor?: string) => string;
export declare const watchElement: (element: HTMLElement | null, callback: (info: {
    element: HTMLElement;
    width: number;
    height: number;
}) => void) => void;
export declare const watchElementBySelector: (selector: string, callback: (info: {
    element: HTMLElement;
    width: number;
    height: number;
}) => void) => void;
export declare const handleWindowResizeByElement: (element: HTMLElement, callback?: (info: {
    element: HTMLElement;
    width: number;
    height: number;
}) => void) => void;
export declare const handleWindowResizeBySelector: (elementId: string, callback?: (info: {
    element: HTMLElement;
    width: number;
    height: number;
}) => void) => void;
export declare const flyToVietNam: (viewer: Viewer) => void;
export declare const saveCurrentView: (viewer: Viewer) => string;
export declare const restoreSavedView: (viewer: Viewer, obj: string, durationTime?: number) => void;
export declare const base64ToFile: (base64: string, filename: string) => File;