/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
import { Core } from "./main.js";
interface IFontJSON {
    name: string;
    size: number;
    border: number;
    glyphs: IGlyphJSON[];
    edgeValue: number;
}
interface IGlyphJSON {
    char: string;
    key: number;
    width: number;
    height: number;
    left: number;
    top: number;
    advance: number;
    u0: number;
    v0: number;
    u1: number;
    v1: number;
}
export declare class Glyph {
    key: number;
    char: string;
    distances: Uint8ClampedArray;
    gradientsX: Uint8ClampedArray;
    gradientsY: Uint8ClampedArray;
    pixels: Uint8ClampedArray;
    width: number;
    height: number;
    top: number;
    left: number;
    advance: number;
    u0: number;
    v0: number;
    u1: number;
    v1: number;
    toJSON(): IGlyphJSON;
}
export interface IFontVisual {
    isInitialized: boolean;
    font: Font;
    update(): void;
}
export declare class FontVisual implements IFontVisual {
    isInitialized: boolean;
    font: Font;
    update(): void;
    constructor(font: Font);
}
export declare class Font {
    private _core;
    private _chars;
    private _hasChanged;
    private _rasterizer;
    private _previousSize;
    name: string;
    size: number;
    border: number;
    edgeValue: number;
    glyphs: {
        [key: string]: Glyph;
    };
    get atlas(): FontAtlas;
    get count(): number;
    hasChangedCallback: () => void;
    constructor(core: Core, rasterizer: FontRasterizer);
    addGlyph(char: string): void;
    update(): void;
    toJSON(): IFontJSON;
}
export interface IFontRasterizerOptions {
    fontAtlas: FontAtlas;
    fontSize: number;
    border: number;
    fontFamily: string;
    fontWeight: string;
    fontStyle: string;
    baseline: CanvasTextBaseline;
    edgeValue: number;
    maxDistance: number;
}
export declare class FontAtlas {
    imageData: ImageData;
    x: number;
    top: Uint16Array;
    constructor(width: number, height: number);
}
export declare class FontRasterizer {
    private _core;
    private _fontSize;
    private _border;
    private _fontFamily;
    private _fontWeight;
    private _fontStyle;
    private _baseline;
    private _glyphRasterizer;
    private _maxDistance;
    private _edgeValue;
    private _fontAtlas;
    private _font;
    get font(): Font;
    get fontAtlas(): FontAtlas;
    constructor(core: Core, options: IFontRasterizerOptions);
    draw(char: string): void;
}
interface IGlyphRasterizerOptions {
    fontSize: number;
    border: number;
    fontFamily: string;
    fontWeight: string;
    fontStyle: string;
    baseline: CanvasTextBaseline;
    edgeValue: number;
    maxDistance: number;
}
export declare class GlyphRasterizer {
    private _core;
    private _fontSize;
    private _border;
    private _fontFamily;
    private _fontWeight;
    private _fontStyle;
    private _baseline;
    private _size;
    private _context;
    private _maxDistance;
    private _edgeValue;
    private _gridOuter;
    private _gridInner;
    private _f;
    private _z;
    private _v;
    constructor(core: Core, options: IGlyphRasterizerOptions);
    draw(char: string): Glyph;
    private _edt;
    private _edt1d;
}
export {};