playcanvas/build/playcanvas.dbg/src/framework/font/font.js

Open-source WebGL/WebGPU 3D engine for the web

import { FONT_MSDF } from "./constants.js";
class Font {
  /**
   * Create a new Font instance.
   *
   * @param {Texture[]} textures - The font textures.
   * @param {object} data - The font data.
   */
  constructor(textures, data) {
    this.type = data ? data.type || FONT_MSDF : FONT_MSDF;
    this.em = 1;
    this.textures = textures;
    this.intensity = 0;
    this._loader = null;
    this._data = null;
    this.data = data;
  }
  /**
   * Frees the GPU textures owned by the font and removes them from the resource loader cache.
   * Called automatically when the owning font asset is unloaded (see {@link Asset#unload}).
   */
  destroy() {
    const textures = this.textures;
    if (textures) {
      for (let i = 0; i < textures.length; i++) {
        const texture = textures[i];
        this._loader?.clearCache(texture.name, "texture");
        texture.destroy();
      }
      this.textures = null;
    }
    this._loader = null;
    this._data = null;
  }
  set data(value) {
    this._data = value;
    if (!value) {
      return;
    }
    if (this._data.intensity !== void 0) {
      this.intensity = this._data.intensity;
    }
    if (!this._data.info) {
      this._data.info = {};
    }
    if (!this._data.version || this._data.version < 2) {
      this._data.info.maps = [{
        width: this._data.info.width,
        height: this._data.info.height
      }];
      if (this._data.chars) {
        for (const key in this._data.chars) {
          this._data.chars[key].map = 0;
        }
      }
    }
  }
  get data() {
    return this._data;
  }
}
export {
  Font
};