/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
import { Core } from "./main.js";
interface IIconsJSON {
    key: string;
    items: IIconJSON[];
}
interface IIconJSON {
    key: string;
    u0: number;
    v0: number;
    u1: number;
    v1: number;
}
export declare class Icon {
    key: string;
    width: number;
    height: number;
    distances: Uint8ClampedArray;
    gradientsX: Uint8ClampedArray;
    gradientsY: Uint8ClampedArray;
    pixels: Uint8ClampedArray;
    u0: number;
    v0: number;
    u1: number;
    v1: number;
    toJSON(): IIconJSON;
}
export interface IIconsVisual {
    isInitialized: boolean;
    icons: Icons;
    update(): void;
}
export declare class IconsVisual implements IIconsVisual {
    isInitialized: boolean;
    icons: Icons;
    update(): void;
    constructor(icons: Icons);
}
export declare class Icons {
    private _core;
    private _keys;
    private _hasChanged;
    private _rasterizer;
    private _previousSize;
    key: string;
    items: {
        [key: string]: Icon;
    };
    get atlas(): IconsAtlas;
    get count(): number;
    hasChangedCallback: () => void;
    constructor(core: Core, rasterizer: IconsRasterizer);
    add(key: string, imgData: ImageData): void;
    update(): void;
    toJSON(): IIconsJSON;
}
export interface IIconsRasterizerOptions {
    key: string;
    atlas: IconsAtlas;
    border: number;
    edgeValue: number;
    maxDistance: number;
}
export declare class IconsAtlas {
    imageData: ImageData;
    x: number;
    top: Uint16Array;
    constructor(width: number, height: number);
}
export declare class IconsRasterizer {
    private _core;
    private _border;
    private _iconRasterizer;
    private _maxDistance;
    private _edgeValue;
    private _atlas;
    private _icons;
    private _key;
    get icons(): Icons;
    get atlas(): IconsAtlas;
    constructor(core: Core, options: IIconsRasterizerOptions);
    draw(key: string, imgData: ImageData): void;
}
interface IIconRasterizerOptions {
    border: number;
    edgeValue: number;
    maxDistance: number;
}
export declare class IconRasterizer {
    private _core;
    private _border;
    private _maxDistance;
    private _edgeValue;
    private _gridOuter;
    private _gridInner;
    private _f;
    private _z;
    private _v;
    constructor(core: Core, options: IIconRasterizerOptions);
    draw(key: string, imgData0: ImageData): Icon;
    private _edt;
    private _edt1d;
}
export {};