import { AnyGradientType, FillType, StringColorType } from "../../types";
import { SKRSContext2D } from "@napi-rs/canvas";
/**
 * Interface representing a gradient.
 */
export interface IGradient {
    /**
     * The type of fill, which is always `Gradient` for this interface.
     */
    fillType: FillType;
    /**
     * The type of gradient (e.g., linear, radial, conic).
     */
    type: AnyGradientType;
    /**
     * The points defining the gradient.
     */
    points: Array<GradientPoint>;
    /**
     * The color stops for the gradient.
     */
    stops: Array<GradientColorStop>;
}
/**
 * Interface representing a color stop in a gradient.
 */
export interface GradientColorStop {
    /**
     * The color of the stop in hexadecimal format.
     */
    color: StringColorType;
    /**
     * The offset of the stop, ranging from 0 to 1.
     */
    offset: number;
}
/**
 * Interface representing a point in a gradient.
 */
export interface GradientPoint {
    /**
     * The x-coordinate of the point.
     */
    x: number;
    /**
     * The y-coordinate of the point.
     */
    y: number;
    /**
     * The radius of the point (optional, used for radial gradients).
     */
    r?: number;
    /**
     * The starting angle of the point (optional, used for conic gradients).
     */
    startAngle?: number;
}
/**
 * Class representing a gradient with properties and methods to manipulate it.
 */
export declare class Gradient implements IGradient {
    /**
     * The type of fill, which is always `Gradient`.
     */
    fillType: FillType;
    /**
     * The type of gradient (e.g., linear, radial, conic).
     */
    type: AnyGradientType;
    /**
     * The points defining the gradient.
     */
    points: Array<GradientPoint>;
    /**
     * The color stops for the gradient.
     */
    stops: Array<GradientColorStop>;
    /**
     * Constructs a new Gradient instance.
     * @param opts {Object} - Optional properties for the gradient.
     * @param opts.props {IGradient} - The gradient properties.
     */
    constructor(opts?: {
        props?: IGradient;
    });
    /**
     * Sets the type of the gradient.
     * @param type {AnyGradientType} - The type of the gradient (e.g., linear, radial, conic).
     * @returns {this} The current instance for chaining.
     */
    setType(type: AnyGradientType): this;
    /**
     * Adds points to the gradient.
     * @param points {GradientPoint[]} - The points to add to the gradient.
     * @returns {this} The current instance for chaining.
     */
    addPoints(...points: GradientPoint[]): this;
    /**
     * Adds color stops to the gradient.
     * @param stops {GradientColorStop[]} - The color stops to add to the gradient.
     * @returns {this} The current instance for chaining.
     */
    addStops(...stops: GradientColorStop[]): this;
    /**
     * Draws the gradient on a canvas context.
     * @param ctx {SKRSContext2D} - The canvas rendering context.
     * @returns {CanvasGradient} The created gradient.
     */
    draw(ctx: SKRSContext2D): CanvasGradient;
    /**
     * Converts the gradient to a JSON representation.
     * @returns {IGradient} The JSON representation of the gradient.
     */
    toJSON(): IGradient;
}