import EventEmitter from 'eventemitter3';
export interface IFontOptions {
    fontFamily: string;
    fontWeight: string;
    characterSet: string[];
    fontSize: number;
    buffer: number;
    sdf: boolean;
    cutoff: number;
    radius: number;
    iconfont: boolean;
}
export interface IFontMappingOption {
    characterSet: string[];
    getFontWidth: (char: string, i: number) => number;
    fontHeight: number;
    buffer: number;
    maxCanvasWidth: number;
    mapping: IFontMapping;
    xOffset: number;
    yOffset: number;
}
export interface IFontMappingItem {
    x: number;
    y: number;
    width: number;
    height: number;
    advance: number;
}
export interface IFontMapping {
    [key: string]: IFontMappingItem;
    [key: number]: IFontMappingItem;
}
export interface IFontIconFontMapItem {
    [key: string]: string;
}
export interface IFontAtlas {
    xOffset: number;
    yOffset: number;
    mapping: IFontMapping;
    data: HTMLCanvasElement;
    width: number;
    height: number;
}
export interface IIconFontGlyph {
    name: string;
    unicode: string;
    [key: string]: any;
}
export interface IFontService extends EventEmitter {
    mapping: IFontMapping;
    iconFontMap: Map<string, string>;
    fontAtlas: IFontAtlas;
    canvas: HTMLCanvasElement;
    scale: number;
    init(): void;
    addIconGlyphs(glyphs: IIconFontGlyph[]): void;
    addIconFont(name: string, fontUnicode: string): void;
    addFontFace(fontname: string, fontpath: string): void;
    getIconFontKey(name: string): string;
    getCanvasByKey(key: string): HTMLCanvasElement;
    getMappingByKey(key: string): IFontMapping;
    getGlyph(name: string): string;
    setFontOptions(option: Partial<IFontOptions>): void;
    destroy(): void;
}