import { IEventEmitter } from '@breadstone/mosaik-elements';
import { CssColor } from '@breadstone/mosaik-themes';
import { type PointGroup } from 'signature_pad';
import { IClearable } from '../../../Behaviors/Clearable';
import { type IInvalidable } from '../../../Behaviors/Invalidable';
import { ISignEndedEventDetail, ISignStartedEventDetail, ISignStrokeEventDetail } from '../../../events';
import { CustomElement } from '../../Abstracts/CustomElement';
import type { ISignaturePadElementProps } from './ISignaturePadElementProps';
declare const SignaturePadElement_base: (abstract new (...args: Array<any>) => import("../../../Behaviors/Themeable").IThemeableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Clearable").IClearableProps & import("../../../Behaviors/Clearable").IClearableEvents & IClearable) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Disableable").IDisableableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Focusable").IFocusableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Variantable").IVariantableProps) & (abstract new (...args: Array<any>) => IInvalidable & import("../../../Behaviors/Invalidable").IInvalidableProps<unknown>) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Valueable").IValueableProps<unknown>) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Labelable").ILabelableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Appearanceable").IAppearanceableProps) & typeof CustomElement & import("../../../Behaviors/Themeable").IThemeableCtor;
/**
 * Signature Pad - A user interface component for capturing and displaying digital signatures.
 *
 * @element mosaik-signaturepad
 *
 * @description
 * The Signature Pad component is designed to capture and display digital signatures. It provides a canvas or input area
 * where users can use a stylus, finger, or mouse to draw their signatures. Signature Pads are commonly used in various
 * applications, such as signing contracts, authorizing documents, or confirming transactions digitally.
 *
 * @category Forms
 *
 * @fires cleared {ClearedEvent} - Fired when the value is cleared.
 * @fires signStarted {SignStartedEvent} - Fired when the user starts signing.
 * @fires signEnded {SignEndedEvent} - Fired when the user ends signing.
 * @fires signStrokeBeforeUpdate {SignStrokeBeforeUpdateEvent} - Fired when the user starts signing.
 * @fires signStrokeAfterUpdate {SignStrokeAfterUpdateEvent} - Fired when the user ends signing.
 *
 * @example
 * ```html
 * <mosaik-signaturepad width="400" height="200"></mosaik-signaturepad>
 * ```
 *
 * @public
 */
export declare class SignaturePadElement extends SignaturePadElement_base implements ISignaturePadElementProps, IInvalidable, IClearable {
    private readonly _signStarted;
    private readonly _signEnded;
    private readonly _signStrokeBeforeUpdate;
    private readonly _signStrokeAfterUpdate;
    private _signaturePad;
    private _width;
    private _height;
    private _placeholder;
    private _minDistance;
    private _throttle;
    private _dotSize;
    private _minWidth;
    private _maxWidth;
    private _velocityFilterWeight;
    private _backgroundColor;
    private _penColor;
    private _required;
    /**
     * @public
     */
    constructor();
    /**
     * Returns the `is` property.
     * The `is` property represents natural name of this element.
     *
     * @public
     * @static
     * @readonly
     */
    static get is(): string;
    /**
     * Gets or sets the `width` property.
     *
     * @public
     * @attr
     */
    get width(): number;
    set width(value: number);
    /**
     * Gets or sets the `height` property.
     *
     * @public
     * @attr
     */
    get height(): number;
    set height(value: number);
    /**
     * Gets or sets the `placeholder` property.
     *
     * @public
     * @attr
     */
    get placeholder(): string;
    set placeholder(value: string);
    /**
     * Gets or sets the `minDistance` property.
     *
     * @public
     * @attr
     */
    get minDistance(): number;
    set minDistance(value: number);
    /**
     * Gets or sets the `throttle` property.
     *
     * @public
     * @attr
     */
    get throttle(): number;
    set throttle(value: number);
    /**
     * Gets or sets the `dotSize` property.
     *
     * @public
     * @attr
     */
    get dotSize(): number;
    set dotSize(value: number);
    /**
     * Gets or sets the `minWidth` property.
     *
     * @public
     * @attr
     */
    get minWidth(): number;
    set minWidth(value: number);
    /**
     * Gets or sets the `maxWidth` property.
     *
     * @public
     * @attr
     */
    get maxWidth(): number;
    set maxWidth(value: number);
    /**
     * Gets or sets the `velocityFilterWeight` property.
     *
     * @public
     * @attr
     */
    get velocityFilterWeight(): number;
    set velocityFilterWeight(value: number);
    /**
     * Gets or sets the `backgroundColor` property.
     *
     * @public
     * @attr
     */
    get backgroundColor(): CssColor;
    set backgroundColor(value: CssColor);
    /**
     * Gets or sets the `penColor` property.
     *
     * @public
     * @attr
     */
    get penColor(): CssColor;
    set penColor(value: CssColor);
    /**
     * Gets or sets the `required` property.
     *
     * @public
     * @attr
     */
    get required(): boolean;
    set required(value: boolean);
    /**
     * Returns true if canvas is empty, otherwise returns false.
     *
     * @public
     * @readonly
     */
    get isEmpty(): boolean;
    /**
     * Called when the signing starts.
     * Provides reference to `ISignStartedEventDetail` as event detail.
     *
     * @public
     * @readonly
     * @eventProperty
     */
    get signStarted(): IEventEmitter<ISignStartedEventDetail>;
    /**
     * Called when the signing ends.
     * Provides reference to `ISignEndedEventDetail` as event detail.
     *
     * @public
     * @readonly
     * @eventProperty
     */
    get signEnded(): IEventEmitter<ISignEndedEventDetail>;
    /**
     * Called before the signing stroke is updated.
     * Provides reference to `ISignStrokeEventDetail` as event detail.
     *
     * @public
     * @readonly
     * @eventProperty
     */
    get signStrokeBeforeUpdate(): IEventEmitter<ISignStrokeEventDetail>;
    /**
     * Called after the signing stroke is updated.
     * Provides reference to `ISignStrokeEventDetail` as event detail.
     *
     * @public
     * @readonly
     * @eventProperty
     */
    get signStrokeAfterUpdate(): IEventEmitter<ISignStrokeEventDetail>;
    /**
     * @public
     * @override
     */
    connectedCallback(): void;
    /**
     * @public
     * @override
     */
    disconnectedCallback(): void;
    /**
     * Checks the validity of the element and returns `true` if it is valid; otherwise, `false`.
     *
     * @public
     * @override
     */
    checkValidity(): boolean;
    /**
     * Resets the value, all kinds of validation and errors.
     *
     * @public
     */
    reset(): void;
    /**
     * Returns signature image as an array of point groups.
     *
     * @public
     */
    toData(): Array<PointGroup>;
    /**
     * Returns signature image as data URL (see https://mdn.io/todataurl for the list of possible parameters).
     *
     * @public
     */
    toDataURL(imageType?: string, quality?: number): string;
    /**
     * Returns signature image as data URL trimmed from white space.
     *
     * @public
     */
    toBlob(): Blob;
    /**
     * Draws signature image from an array of point groups.
     *
     * @public
     */
    fromData(points: Array<PointGroup>): void;
    /**
     * Draws signature image from data URL.
     *
     * @public
     */
    fromDataURL(dataURL: string, options?: {
        ratio?: number;
        width?: number;
        height?: number;
        xOffset?: number;
        yOffset?: number;
    }): Promise<void>;
    /**
     * Clears the value of the element but not the validation.
     *
     * @public
     * @override
     */
    clear(force?: boolean): boolean;
    /**
     * @protected
     * @override
     */
    protected onApplyTemplate(): void;
    /**
     * Emits the `signStarted` event.
     *
     * @protected
     */
    protected onSignStarted(): void;
    /**
     * Emits the `signEnded` event.
     *
     * @protected
     */
    protected onSignEnded(): void;
    /**
     * Emits the `signStrokeBeforeUpdated` event.
     *
     * @protected
     */
    protected onSignStrokeBeforeUpdated(): void;
    /**
     * Emits the `signStrokeAfterUpdated` event.
     *
     * @protected
     */
    protected onSignStrokeAfterUpdated(): void;
    /**
     * @protected
     */
    protected onMinDistancePropertyChanged(_prev: number, newValue: number): void;
    /**
     * @protected
     */
    protected onThrottlePropertyChanged(_prev: number, next: number): void;
    /**
     * @protected
     */
    protected onDotSizePropertyChanged(_prev: number, next: number): void;
    /**
     * @protected
     */
    protected onMinWidthPropertyChanged(_prev: number, next: number): void;
    /**
     * @protected
     */
    protected onMaxWidthPropertyChanged(_prev: number, next: number): void;
    /**
     * @protected
     */
    protected onVelocityFilterWeightPropertyChanged(_prev: number, next: number): void;
    /**
     * @protected
     */
    protected onBackgroundColorPropertyChanged(_prev: CssColor, next: CssColor): void;
    /**
     * @protected
     */
    protected onPenColorPropertyChanged(_prev: CssColor, next: CssColor): void;
    /**
     * @private
     */
    private dataURLToBlob;
    /**
     * @private
     */
    private trimCanvas;
}
/**
 * @public
 */
export declare namespace SignaturePadElement {
    type Props = ISignaturePadElementProps;
}
/**
 * @public
 */
declare global {
    interface HTMLElementTagNameMap {
        'mosaik-signaturepad': SignaturePadElement;
    }
}
export {};
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