Move the CFFFont from src/core/fonts.js and into its own file
This commit is contained in:
Jonas Jenwald
parent
d4606712f2
commit
d5d73e3168
116
src/core/cff_font.js
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116
src/core/cff_font.js
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/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* eslint-disable no-var */
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import { CFFCompiler, CFFParser } from "./cff_parser.js";
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import { SEAC_ANALYSIS_ENABLED, type1FontGlyphMapping } from "./fonts_utils.js";
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import { warn } from "../shared/util.js";
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var CFFFont = (function CFFFontClosure() {
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// eslint-disable-next-line no-shadow
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function CFFFont(file, properties) {
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this.properties = properties;
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var parser = new CFFParser(file, properties, SEAC_ANALYSIS_ENABLED);
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this.cff = parser.parse();
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this.cff.duplicateFirstGlyph();
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var compiler = new CFFCompiler(this.cff);
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this.seacs = this.cff.seacs;
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try {
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this.data = compiler.compile();
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} catch (e) {
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warn("Failed to compile font " + properties.loadedName);
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// There may have just been an issue with the compiler, set the data
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// anyway and hope the font loaded.
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this.data = file;
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}
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this._createBuiltInEncoding();
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}
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CFFFont.prototype = {
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get numGlyphs() {
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return this.cff.charStrings.count;
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},
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getCharset: function CFFFont_getCharset() {
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return this.cff.charset.charset;
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},
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getGlyphMapping: function CFFFont_getGlyphMapping() {
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var cff = this.cff;
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var properties = this.properties;
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var charsets = cff.charset.charset;
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var charCodeToGlyphId;
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var glyphId;
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if (properties.composite) {
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charCodeToGlyphId = Object.create(null);
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let charCode;
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if (cff.isCIDFont) {
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// If the font is actually a CID font then we should use the charset
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// to map CIDs to GIDs.
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for (glyphId = 0; glyphId < charsets.length; glyphId++) {
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var cid = charsets[glyphId];
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charCode = properties.cMap.charCodeOf(cid);
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charCodeToGlyphId[charCode] = glyphId;
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}
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} else {
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// If it is NOT actually a CID font then CIDs should be mapped
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// directly to GIDs.
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for (glyphId = 0; glyphId < cff.charStrings.count; glyphId++) {
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charCode = properties.cMap.charCodeOf(glyphId);
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charCodeToGlyphId[charCode] = glyphId;
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}
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}
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return charCodeToGlyphId;
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}
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var encoding = cff.encoding ? cff.encoding.encoding : null;
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charCodeToGlyphId = type1FontGlyphMapping(properties, encoding, charsets);
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return charCodeToGlyphId;
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},
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hasGlyphId: function CFFFont_hasGlyphID(id) {
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return this.cff.hasGlyphId(id);
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},
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/**
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* @private
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*/
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_createBuiltInEncoding() {
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const { charset, encoding } = this.cff;
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if (!charset || !encoding) {
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return;
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}
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const charsets = charset.charset,
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encodings = encoding.encoding;
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const map = [];
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for (const charCode in encodings) {
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const glyphId = encodings[charCode];
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if (glyphId >= 0) {
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const glyphName = charsets[glyphId];
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if (glyphName) {
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map[charCode] = glyphName;
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}
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}
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}
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if (map.length > 0) {
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this.properties.builtInEncoding = map;
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}
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},
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};
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return CFFFont;
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})();
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export { CFFFont };
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@ -72,6 +72,7 @@ import {
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MissingDataException,
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MissingDataException,
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readUint32,
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readUint32,
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} from "./core_utils.js";
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} from "./core_utils.js";
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import { CFFFont } from "./cff_font.js";
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import { FontRendererFactory } from "./font_renderer.js";
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import { FontRendererFactory } from "./font_renderer.js";
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import { IdentityCMap } from "./cmap.js";
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import { IdentityCMap } from "./cmap.js";
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import { OpenTypeFileBuilder } from "./opentype_file_builder.js";
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import { OpenTypeFileBuilder } from "./opentype_file_builder.js";
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@ -3592,99 +3593,4 @@ var Type1Font = (function Type1FontClosure() {
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return Type1Font;
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return Type1Font;
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})();
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})();
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var CFFFont = (function CFFFontClosure() {
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// eslint-disable-next-line no-shadow
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function CFFFont(file, properties) {
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this.properties = properties;
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var parser = new CFFParser(file, properties, SEAC_ANALYSIS_ENABLED);
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this.cff = parser.parse();
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this.cff.duplicateFirstGlyph();
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var compiler = new CFFCompiler(this.cff);
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this.seacs = this.cff.seacs;
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try {
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this.data = compiler.compile();
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} catch (e) {
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warn("Failed to compile font " + properties.loadedName);
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// There may have just been an issue with the compiler, set the data
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// anyway and hope the font loaded.
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this.data = file;
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}
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this._createBuiltInEncoding();
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}
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CFFFont.prototype = {
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get numGlyphs() {
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return this.cff.charStrings.count;
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},
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getCharset: function CFFFont_getCharset() {
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return this.cff.charset.charset;
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},
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getGlyphMapping: function CFFFont_getGlyphMapping() {
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var cff = this.cff;
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var properties = this.properties;
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var charsets = cff.charset.charset;
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var charCodeToGlyphId;
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var glyphId;
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if (properties.composite) {
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charCodeToGlyphId = Object.create(null);
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let charCode;
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if (cff.isCIDFont) {
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// If the font is actually a CID font then we should use the charset
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// to map CIDs to GIDs.
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for (glyphId = 0; glyphId < charsets.length; glyphId++) {
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var cid = charsets[glyphId];
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charCode = properties.cMap.charCodeOf(cid);
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charCodeToGlyphId[charCode] = glyphId;
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}
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} else {
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// If it is NOT actually a CID font then CIDs should be mapped
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// directly to GIDs.
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for (glyphId = 0; glyphId < cff.charStrings.count; glyphId++) {
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charCode = properties.cMap.charCodeOf(glyphId);
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charCodeToGlyphId[charCode] = glyphId;
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}
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}
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return charCodeToGlyphId;
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}
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var encoding = cff.encoding ? cff.encoding.encoding : null;
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charCodeToGlyphId = type1FontGlyphMapping(properties, encoding, charsets);
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return charCodeToGlyphId;
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},
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hasGlyphId: function CFFFont_hasGlyphID(id) {
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return this.cff.hasGlyphId(id);
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},
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/**
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* @private
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*/
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_createBuiltInEncoding() {
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const { charset, encoding } = this.cff;
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if (!charset || !encoding) {
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return;
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}
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const charsets = charset.charset,
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encodings = encoding.encoding;
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const map = [];
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for (const charCode in encodings) {
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const glyphId = encodings[charCode];
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if (glyphId >= 0) {
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const glyphName = charsets[glyphId];
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if (glyphName) {
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map[charCode] = glyphName;
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}
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}
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}
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if (map.length > 0) {
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this.properties.builtInEncoding = map;
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}
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},
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};
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return CFFFont;
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})();
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export { ErrorFont, Font };
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export { ErrorFont, Font };
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