fonteditor-core/lib/ttf/util/reduceGlyf.js

fonts (ttf, woff, woff2, eot, svg, otf) parse, write, transform, glyph adjust.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = reduceGlyf;

var _reducePath = _interopRequireDefault(require("../../graphics/reducePath"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * @file 缩减glyf大小，去除冗余节点
 * @author mengke01(kekee000@gmail.com)
 */

/**
 * 缩减glyf，去除冗余节点
 *
 * @param {Object} glyf glyf对象
 * @return {Object} glyf对象
 */
function reduceGlyf(glyf) {
  var contours = glyf.contours;
  var contour;

  for (var j = contours.length - 1; j >= 0; j--) {
    contour = (0, _reducePath["default"])(contours[j]); // 空轮廓

    if (contour.length <= 2) {
      contours.splice(j, 1);
      continue;
    }
  }

  if (0 === glyf.contours.length) {
    delete glyf.contours;
  }

  return glyf;
}