import SignaturePadBase, { Options, PointGroup } from './signature_pad_base';
export default class SignaturePad extends SignaturePadBase {
    onBegin?: (event: MouseEvent | Touch) => void;
    onEnd?: (event: MouseEvent | Touch) => void;
    canvas: HTMLCanvasElement;
    private _mouseButtonDown;
    constructor(canvas: HTMLCanvasElement, options?: Options);
    fromDataURL(dataUrl: string, options?: {
        ratio?: number;
        width?: number;
        height?: number;
    }, callback?: (error?: string | Event) => void): void;
    toDataURL(type?: string, encoderOptions?: number): string;
    on(): void;
    off(): void;
    isEmpty(): boolean;
    fromData(pointGroups: PointGroup[]): void;
    toData(): PointGroup[];
    private _handleMouseDown;
    private _handleMouseMove;
    private _handleMouseUp;
    private _handleTouchStart;
    private _handleTouchMove;
    private _handleTouchEnd;
    private _handlePointerEvents;
    private _handleMouseEvents;
    private _handleTouchEvents;
    private _fromData;
    private _toSVG;
}