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381 lines
13 KiB
Plaintext
381 lines
13 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.Font = void 0;
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exports.createFont = createFont;
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exports.default = void 0;
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var _buffer = _interopRequireDefault(require("../nodejs/buffer"));
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var _getEmptyttfObject = _interopRequireDefault(require("./getEmptyttfObject"));
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var _ttf = _interopRequireDefault(require("./ttf"));
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var _woff2ttf = _interopRequireDefault(require("./woff2ttf"));
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var _otf2ttfobject = _interopRequireDefault(require("./otf2ttfobject"));
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var _eot2ttf = _interopRequireDefault(require("./eot2ttf"));
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var _svg2ttfobject = _interopRequireDefault(require("./svg2ttfobject"));
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var _ttfreader = _interopRequireDefault(require("./ttfreader"));
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var _ttfwriter = _interopRequireDefault(require("./ttfwriter"));
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var _ttf2eot = _interopRequireDefault(require("./ttf2eot"));
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var _ttf2woff = _interopRequireDefault(require("./ttf2woff"));
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var _ttf2svg = _interopRequireDefault(require("./ttf2svg"));
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var _ttf2symbol = _interopRequireDefault(require("./ttf2symbol"));
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var _ttftowoff = _interopRequireDefault(require("./ttftowoff2"));
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var _woff2tottf = _interopRequireDefault(require("./woff2tottf"));
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var _ttf2base = _interopRequireDefault(require("./ttf2base64"));
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var _eot2base = _interopRequireDefault(require("./eot2base64"));
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var _woff2base = _interopRequireDefault(require("./woff2base64"));
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var _svg2base = _interopRequireDefault(require("./svg2base64"));
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var _bytes2base = _interopRequireDefault(require("./util/bytes2base64"));
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var _woff2tobase = _interopRequireDefault(require("./woff2tobase64"));
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var _optimizettf = _interopRequireDefault(require("./util/optimizettf"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
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function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
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function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
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function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); } /**
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* @file 字体管理对象，处理字体相关的读取、查询、转换
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*
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* @author mengke01(kekee000@gmail.com)
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*/
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// 必须是nodejs环境下的Buffer对象才能触发buffer转换
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var SUPPORT_BUFFER = (typeof process === "undefined" ? "undefined" : _typeof(process)) === 'object' && _typeof(process.versions) === 'object' && typeof process.versions.node !== 'undefined' && typeof Buffer === 'function';
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var Font = exports.Font = /*#__PURE__*/function () {
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/**
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* 字体对象构造函数
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*
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* @param {ArrayBuffer|Buffer|string|Document} buffer 字体数据
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* @param {Object} options 读取参数
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*/
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function Font(buffer) {
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
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type: 'ttf'
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};
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_classCallCheck(this, Font);
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// 字形对象
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if (_typeof(buffer) === 'object' && buffer.glyf) {
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this.set(buffer);
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}
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// buffer
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else if (buffer) {
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this.read(buffer, options);
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}
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// 空
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else {
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this.readEmpty();
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}
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}
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/**
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* Create a Font instance
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*
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* @param {ArrayBuffer|Buffer|string|Document} buffer 字体数据
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* @param {Object} options 读取参数
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* @return {Font}
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*/
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return _createClass(Font, [{
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key: "readEmpty",
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value:
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/**
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* 设置一个空的 ttfObject 对象
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*
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* @return {Font}
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*/
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function readEmpty() {
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this.data = (0, _getEmptyttfObject.default)();
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return this;
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}
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/**
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* 读取字体数据
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*
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* @param {ArrayBuffer|Buffer|string|Document} buffer 字体数据
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* @param {Object} options 读取参数
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* @param {string} options.type 字体类型
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*
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* ttf, woff , eot 读取配置
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* @param {boolean} options.hinting 是否保留 hinting 信息
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* @param {boolean} options.kerning 是否保留 kerning 信息
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* @param {boolean} options.compound2simple 复合字形转简单字形
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*
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* woff 读取配置
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* @param {Function} options.inflate 解压相关函数
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*
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* svg 读取配置
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* @param {boolean} options.combinePath 是否合并成单个字形，仅限于普通svg导入
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* @return {Font}
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*/
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}, {
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key: "read",
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value: function read(buffer, options) {
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// nodejs buffer
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if (SUPPORT_BUFFER) {
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if (buffer instanceof Buffer) {
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buffer = _buffer.default.toArrayBuffer(buffer);
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}
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}
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if (options.type === 'ttf') {
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this.data = new _ttfreader.default(options).read(buffer);
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} else if (options.type === 'otf') {
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this.data = (0, _otf2ttfobject.default)(buffer, options);
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} else if (options.type === 'eot') {
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buffer = (0, _eot2ttf.default)(buffer, options);
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this.data = new _ttfreader.default(options).read(buffer);
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} else if (options.type === 'woff') {
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buffer = (0, _woff2ttf.default)(buffer, options);
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this.data = new _ttfreader.default(options).read(buffer);
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} else if (options.type === 'woff2') {
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buffer = (0, _woff2tottf.default)(buffer, options);
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this.data = new _ttfreader.default(options).read(buffer);
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} else if (options.type === 'svg') {
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this.data = (0, _svg2ttfobject.default)(buffer, options);
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} else {
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throw new Error('not support font type' + options.type);
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}
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this.type = options.type;
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return this;
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}
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/**
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* 写入字体数据
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*
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* @param {Object} options 写入参数
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* @param {string} options.type 字体类型, 默认 ttf
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* @param {boolean} options.toBuffer nodejs 环境中返回 Buffer 对象, 默认 true
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*
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* ttf 字体参数
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* @param {boolean} options.hinting 是否保留 hinting 信息
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* @param {boolean} options.kerning 是否保留 kerning 信息
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* svg,woff 字体参数
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* @param {Object} options.metadata 字体相关的信息
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*
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* woff 字体参数
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* @param {Function} options.deflate 压缩相关函数
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* @return {Buffer|ArrayBuffer|string}
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*/
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}, {
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key: "write",
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value: function write() {
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var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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if (!options.type) {
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options.type = this.type;
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}
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var buffer = null;
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if (options.type === 'ttf') {
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buffer = new _ttfwriter.default(options).write(this.data);
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} else if (options.type === 'eot') {
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buffer = new _ttfwriter.default(options).write(this.data);
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buffer = (0, _ttf2eot.default)(buffer, options);
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} else if (options.type === 'woff') {
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buffer = new _ttfwriter.default(options).write(this.data);
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buffer = (0, _ttf2woff.default)(buffer, options);
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} else if (options.type === 'woff2') {
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buffer = new _ttfwriter.default(options).write(this.data);
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buffer = (0, _ttftowoff.default)(buffer, options);
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} else if (options.type === 'svg') {
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buffer = (0, _ttf2svg.default)(this.data, options);
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} else if (options.type === 'symbol') {
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buffer = (0, _ttf2symbol.default)(this.data, options);
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} else {
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throw new Error('not support font type' + options.type);
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}
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if (SUPPORT_BUFFER) {
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if (false !== options.toBuffer && buffer instanceof ArrayBuffer) {
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buffer = _buffer.default.toBuffer(buffer);
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}
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}
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return buffer;
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}
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/**
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* 转换成 base64编码
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*
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* @param {Object} options 写入参数
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* @param {string} options.type 字体类型, 默认 ttf
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* 其他 options参数, 参考 write
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* @see write
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*
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* @param {ArrayBuffer=} buffer 如果提供了buffer数据则使用 buffer数据, 否则转换现有的 font
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* @return {string}
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*/
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}, {
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key: "toBase64",
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value: function toBase64(options, buffer) {
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if (!options.type) {
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options.type = this.type;
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}
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if (buffer) {
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if (SUPPORT_BUFFER) {
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if (buffer instanceof Buffer) {
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buffer = _buffer.default.toArrayBuffer(buffer);
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}
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}
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} else {
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options.toBuffer = false;
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buffer = this.write(options);
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}
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var base64Str;
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if (options.type === 'ttf') {
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base64Str = (0, _ttf2base.default)(buffer);
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} else if (options.type === 'eot') {
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base64Str = (0, _eot2base.default)(buffer);
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} else if (options.type === 'woff') {
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base64Str = (0, _woff2base.default)(buffer);
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} else if (options.type === 'woff2') {
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base64Str = (0, _woff2tobase.default)(buffer);
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} else if (options.type === 'svg') {
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base64Str = (0, _svg2base.default)(buffer);
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} else if (options.type === 'symbol') {
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base64Str = (0, _svg2base.default)(buffer, 'image/svg+xml');
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} else {
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throw new Error('not support font type' + options.type);
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}
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return base64Str;
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}
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/**
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* 设置 font 对象
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*
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* @param {Object} data font的ttfObject对象
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* @return {this}
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*/
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}, {
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key: "set",
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value: function set(data) {
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this.data = data;
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return this;
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}
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/**
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* 获取 font 数据
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*
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* @return {Object} ttfObject 对象
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*/
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}, {
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key: "get",
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value: function get() {
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return this.data;
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}
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/**
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* 对字形数据进行优化
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*
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* @param {Object} out 输出结果
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* @param {boolean|Object} out.result `true` 或者有问题的地方
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* @return {Font}
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*/
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}, {
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key: "optimize",
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value: function optimize(out) {
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var result = (0, _optimizettf.default)(this.data);
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if (out) {
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out.result = result;
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}
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return this;
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}
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/**
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* 将字体中的复合字形转为简单字形
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*
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* @return {this}
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*/
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}, {
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key: "compound2simple",
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value: function compound2simple() {
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var ttfHelper = this.getHelper();
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ttfHelper.compound2simple();
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this.data = ttfHelper.get();
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return this;
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}
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/**
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* 对字形按照unicode编码排序
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*
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* @return {this}
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*/
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}, {
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key: "sort",
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value: function sort() {
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var ttfHelper = this.getHelper();
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ttfHelper.sortGlyf();
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this.data = ttfHelper.get();
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return this;
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}
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/**
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* 查找相关字形
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*
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* @param {Object} condition 查询条件
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* @param {Array|number} condition.unicode unicode编码列表或者单个unicode编码
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* @param {string} condition.name glyf名字，例如`uniE001`, `uniE`
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* @param {Function} condition.filter 自定义过滤器
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* @example
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* condition.filter(glyf) {
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* return glyf.name === 'logo';
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* }
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* @return {Array} glyf字形列表
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*/
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}, {
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key: "find",
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value: function find(condition) {
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var ttfHelper = this.getHelper();
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var indexList = ttfHelper.findGlyf(condition);
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return indexList.length ? ttfHelper.getGlyf(indexList) : indexList;
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}
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/**
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* 合并 font 到当前的 font
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*
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* @param {Object} font Font 对象
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* @param {Object} options 参数选项
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* @param {boolean} options.scale 是否自动缩放
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* @param {boolean} options.adjustGlyf 是否调整字形以适应边界
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* (和 options.scale 参数互斥)
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*
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* @return {Font}
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*/
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}, {
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key: "merge",
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value: function merge(font, options) {
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var ttfHelper = this.getHelper();
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ttfHelper.mergeGlyf(font.get(), options);
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this.data = ttfHelper.get();
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return this;
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}
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/**
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* 获取 TTF helper 实例
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*/
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}, {
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key: "getHelper",
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value: function getHelper() {
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return new _ttf.default(this.data);
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}
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}], [{
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key: "create",
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value: function create(buffer, options) {
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return new Font(buffer, options);
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}
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}]);
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}();
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/**
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* base64序列化buffer 数据
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*
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* @param {ArrayBuffer|Buffer|string} buffer 字体数据
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* @return {Font}
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*/
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Font.toBase64 = function (buffer) {
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if (typeof buffer === 'string') {
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// node 环境中没有 btoa 函数
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if (typeof btoa === 'undefined') {
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return Buffer.from(buffer, 'binary').toString('base64');
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}
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return btoa(buffer);
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}
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return (0, _bytes2base.default)(buffer);
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};
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function createFont(buffer, options) {
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return new Font(buffer, options);
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}
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var _default = exports.default = Font; |