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44 lines
1.4 KiB
Plaintext
44 lines
1.4 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.default = void 0;
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var _table = _interopRequireDefault(require("./table"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* @file directory 表, 读取和写入ttf表索引
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* @author mengke01(kekee000@gmail.com)
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*
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* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6.html
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*/
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var _default = exports.default = _table.default.create('directory', [], {
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read: function read(reader, ttf) {
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var tables = {};
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var numTables = ttf.numTables;
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var offset = this.offset;
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for (var i = offset, l = numTables * 16; i < l; i += 16) {
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var name = reader.readString(i, 4).trim();
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tables[name] = {
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name: name,
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checkSum: reader.readUint32(i + 4),
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offset: reader.readUint32(i + 8),
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length: reader.readUint32(i + 12)
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};
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}
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return tables;
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},
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write: function write(writer, ttf) {
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var tables = ttf.support.tables;
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for (var i = 0, l = tables.length; i < l; i++) {
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writer.writeString((tables[i].name + ' ').slice(0, 4));
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writer.writeUint32(tables[i].checkSum);
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writer.writeUint32(tables[i].offset);
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writer.writeUint32(tables[i].length);
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}
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return writer;
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},
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size: function size(ttf) {
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return ttf.numTables * 16;
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}
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}); |