/**
 *
 * This file may have been modified by Bytedance Inc. (“Bytedance Inc.'s Modifications”). 
 * All Bytedance Inc.'s Modifications are Copyright (year) Bytedance Inc..  
 * 
 * This source code is licensed under the Apache license.
 * See LICENSE file in the project root for license information.
 *
 */
import { Area, MediaSize, Point, Size } from './types';
export declare function getCropSize(mediaWidth: number, mediaHeight: number, containerWidth: number, containerHeight: number, aspect: number, rotation?: number): Size;
export declare function getMediaZoom(mediaSize: MediaSize): number;
export declare function restrictPosition(position: Point, mediaSize: Size, cropSize: Size, zoom: number, rotation?: number): Point;
export declare function getDistanceBetweenPoints(pointA: Point, pointB: Point): number;
export declare function getRotationBetweenPoints(pointA: Point, pointB: Point): number;
export declare function computeCroppedArea(crop: Point, mediaSize: MediaSize, cropSize: Size, aspect: number, zoom: number, rotation?: number, restrictPosition?: boolean): {
    croppedAreaPercentages: Area;
    croppedAreaPixels: Area;
};
export declare function getInitialCropFromCroppedAreaPercentages(croppedAreaPercentages: Area, mediaSize: MediaSize, rotation: number, cropSize: Size, minZoom: number, maxZoom: number): {
    crop: {
        x: number;
        y: number;
    };
    zoom: number;
};
export declare function getInitialCropFromCroppedAreaPixels(croppedAreaPixels: Area, mediaSize: MediaSize, rotation: number | undefined, cropSize: Size, minZoom: number, maxZoom: number): {
    crop: Point;
    zoom: number;
};
export declare function getCenter(a: Point, b: Point): Point;
export declare function getRadianAngle(degreeValue: number): number;
export declare function rotateSize(width: number, height: number, rotation: number): Size;
export declare function clamp(value: number, min: number, max: number): number;
export declare function classNames(...args: (boolean | string | number | undefined | void | null)[]): string;