import { QRCode } from "jsqr";
import { Point } from "./utils";
export declare class AnchorLocation {
    topLeftCorner: Point;
    topRightCorner: Point;
    bottomLeftCorner: Point;
    bottomRightCorner: Point;
    constructor(topLeftCorner: Point, topRightCorner: Point, bottomLeftCorner: Point, bottomRightCorner: Point);
    getRect(): [number, number, number, number];
}
export declare class Anchor {
    data: string;
    location: AnchorLocation;
    orientation: number;
    size: number;
    canvas?: HTMLCanvasElement;
    color: string;
    constructor(qrCode: QRCode, x: number, y: number, canvas?: HTMLCanvasElement, color?: string);
    /**
     * Draws the QR Code on the provided canvas element.
     *
     * This method draws the bounding rectangle of the QR Code and places its content above it.
     */
    drawQRCode(): void;
    /**
     * Creates an AnchorPath based on the given points relative to the QR Code.
     *
     * The points are first translated by the top-left corner of the QR Code and then rotated according to the QR Code's orientation.
     *
     * @param {...[number, number][]} points - An array of points represented as [x, y] pairs.
     * @returns {AnchorPath} A new instance of AnchorPath with the specified points, color, and canvas.
     */
    anchorPath(...points: [number, number][]): AnchorPath;
    anchorRect(topLeft: [number, number], bottomRight: [number, number]): AnchorPath;
}
export type DrawOptions = {
    detectGray: boolean;
    grayThreshold: number;
};
export type DrawResult = {
    grayRatio?: number;
    grayAverage?: number;
};
export declare class AnchorPath {
    path: Point[];
    color: string;
    canvas?: HTMLCanvasElement;
    constructor(path: Point[], color: string, canvas?: HTMLCanvasElement);
    /**
     * Draws the path defined by the points on the canvas.
     *
     * If no points are present, the function does nothing.
     * The path is drawn using a dashed line with a specified stroke width.
     */
    draw(options?: Partial<DrawOptions>): DrawResult;
}