/**
 * Rounds number to given decimal
 * eg. roundNumber(2.34343, 1) => 2.3
 */
export declare const roundNumber: (num: any, decimal: any) => number;
/**
 * Checks if value is number, if not it returns default value
 * 1# eg. checkIsNumber(2, 30) => 2
 * 2# eg. checkIsNumber(null, 30) => 30
 */
export declare const checkIsNumber: (num: any, defaultValue: any) => any;
/**
 * Keeps value between given bounds, used for limiting view to given boundaries
 * 1# eg. boundLimiter(2, 0, 3, true) => 2
 * 2# eg. boundLimiter(4, 0, 3, true) => 3
 * 3# eg. boundLimiter(-2, 0, 3, true) => 0
 * 4# eg. boundLimiter(10, 0, 3, false) => 10
 */
export declare const boundLimiter: (value: any, minBound: any, maxBound: any, isActive: any) => number;
/**
 * Returns relative coords of mouse on wrapper element, and provides
 * info about it's width, height, with same info about its content(zoomed component) element
 */
export declare const relativeCoords: (event: any, wrapperComponent: any, contentComponent: any, panningCase: any) => {
    x: any;
    y: any;
    wrapperWidth: any;
    wrapperHeight: any;
    contentWidth: any;
    contentHeight: any;
    diffHeight: number;
    diffWidth: number;
    contentLeft: any;
    contentRight: any;
};
/**
 * Calculate bounding area of zoomed/panned element
 */
export declare const calculateBoundingArea: (wrapperWidth: any, newContentWidth: any, diffWidth: any, wrapperHeight: any, newContentHeight: any, diffHeight: any, limitToWrapper: any) => {
    minPositionX: number;
    maxPositionX: number;
    minPositionY: number;
    maxPositionY: number;
};
/**
 * Returns middle coordinates x,y of two points
 * Used to get middle point of two fingers pinch
 */
export declare const getMiddleCoords: (firstPoint: any, secondPoint: any, contentComponent: any, scale: any) => {
    x: number;
    y: number;
};
/**
 * Returns middle position of PageX for touch events
 */
export declare const getMidPagePosition: (firstPoint: any, secondPoint: any) => void | {
    x: number;
    y: number;
};
/**
 * Returns distance between two points x,y
 */
export declare const getDistance: (firstPoint: any, secondPoint: any) => number;
/**
 * Delete undefined values from object keys
 * Used for deleting empty props
 */
export declare const deleteUndefinedProps: (value: any) => any;
/**
 * Returns center zoom position, for computations, based on the relative center to content node
 */
export declare const getRelativeZoomCoords: ({ wrapperComponent, contentComponent, scale, positionX, positionY, }: {
    wrapperComponent: any;
    contentComponent: any;
    scale: any;
    positionX: any;
    positionY: any;
}) => {
    x: number;
    y: number;
};
/**
 * Fire callback if it's function
 */
export declare const handleCallback: (callback: any, props: any) => void;
export declare const handleWheelStop: (previousEvent: any, event: any, stateProvider: any) => boolean;
export declare const mergeProps: (initialState: any, dynamicProps: any) => {};
export declare function getWindowScaleY(wrapper: any): number;
export declare function getWindowScaleX(wrapper: any): number;