import { ElementRef, EventEmitter, OnDestroy, AfterViewInit } from '@angular/core';
import * as SignaturePadNative from 'signature_pad';
import { FromDataOptions, PointGroup } from 'signature_pad';
import { FromDataUrlOptions } from './interfaces/from-data-url-options';
import { SignaturePadOptions } from './interfaces/signature-pad-options';
import * as i0 from "@angular/core";
export declare class SignaturePad implements AfterViewInit, OnDestroy {
    private elementRef;
    options: Partial<SignaturePadOptions>;
    canvasStylesObject: Partial<CSSStyleDeclaration>;
    drawStart: EventEmitter<boolean>;
    drawEnd: EventEmitter<boolean>;
    protected signaturePad: SignaturePadNative.default;
    constructor(elementRef: ElementRef);
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    resizeCanvas(canvas: HTMLCanvasElement): void;
    toData(): Array<PointGroup>;
    fromData(points: Array<PointGroup>, options?: FromDataOptions): void;
    toDataURL(imageType?: string, quality?: number): string;
    fromDataURL(dataURL: string, options?: FromDataUrlOptions): void;
    clear(): void;
    isEmpty(): boolean;
    off(): void;
    on(): void;
    set(option: string, value: any): void;
    onBegin(): void;
    onEnd(): void;
    queryPad(): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<SignaturePad, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<SignaturePad, "signature-pad", never, { "options": { "alias": "options"; "required": false; }; "canvasStylesObject": { "alias": "canvasStylesObject"; "required": false; }; }, { "drawStart": "drawStart"; "drawEnd": "drawEnd"; }, never, never, false, never>;
}