/*!
 * Copyright (c) Microsoft Corporation.
 * Licensed under the MIT License.
 */
import { vec3, quat, vec4 } from "gl-matrix";
import { Font } from "../font.js";
export interface ITextMetric {
    width: number;
    maxHeight: number;
    maxTop: number;
}
export declare class TextHelper {
    private static _vec2;
    private static _vec3;
    private static _topLeft;
    private static _topRight;
    private static _bottomLeft;
    private static _bottomRight;
    static truncate(text: string, length: number): string;
    static measure(font: Font, text: string, size: ITextMetric): void;
    static wrap(font: Font, text: string, maxWidth: number): string[];
    static addString(font: Font, text: string, vertices: DataView, indices: Uint16Array | Uint32Array, index: number, position: vec3, scale: number, offset: vec3, rotation: quat, idColor: vec4): void;
    static addGlyph(font: Font, char: string, vertices: DataView, indices: Uint16Array | Uint32Array, index: number, position: vec3, scale: number, offset: vec3, rotation: quat, idColor: vec4): void;
}