pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
229 lines (228 loc) • 9.49 kB
JavaScript
/**
* @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright 2022 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* JavaScript code in this page
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getXfaFontDict = getXfaFontDict;
exports.getXfaFontName = getXfaFontName;
var _calibri_factors = require("./calibri_factors.js");
var _primitives = require("./primitives.js");
var _helvetica_factors = require("./helvetica_factors.js");
var _liberationsans_widths = require("./liberationsans_widths.js");
var _myriadpro_factors = require("./myriadpro_factors.js");
var _segoeui_factors = require("./segoeui_factors.js");
var _core_utils = require("./core_utils.js");
var _fonts_utils = require("./fonts_utils.js");
const getXFAFontMap = (0, _core_utils.getLookupTableFactory)(function (t) {
t["MyriadPro-Regular"] = t["PdfJS-Fallback-Regular"] = {
name: "LiberationSans-Regular",
factors: _myriadpro_factors.MyriadProRegularFactors,
baseWidths: _liberationsans_widths.LiberationSansRegularWidths,
baseMapping: _liberationsans_widths.LiberationSansRegularMapping,
metrics: _myriadpro_factors.MyriadProRegularMetrics
};
t["MyriadPro-Bold"] = t["PdfJS-Fallback-Bold"] = {
name: "LiberationSans-Bold",
factors: _myriadpro_factors.MyriadProBoldFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldMapping,
metrics: _myriadpro_factors.MyriadProBoldMetrics
};
t["MyriadPro-It"] = t["MyriadPro-Italic"] = t["PdfJS-Fallback-Italic"] = {
name: "LiberationSans-Italic",
factors: _myriadpro_factors.MyriadProItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansItalicMapping,
metrics: _myriadpro_factors.MyriadProItalicMetrics
};
t["MyriadPro-BoldIt"] = t["MyriadPro-BoldItalic"] = t["PdfJS-Fallback-BoldItalic"] = {
name: "LiberationSans-BoldItalic",
factors: _myriadpro_factors.MyriadProBoldItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldItalicMapping,
metrics: _myriadpro_factors.MyriadProBoldItalicMetrics
};
t.ArialMT = t.Arial = t["Arial-Regular"] = {
name: "LiberationSans-Regular",
baseWidths: _liberationsans_widths.LiberationSansRegularWidths,
baseMapping: _liberationsans_widths.LiberationSansRegularMapping
};
t["Arial-BoldMT"] = t["Arial-Bold"] = {
name: "LiberationSans-Bold",
baseWidths: _liberationsans_widths.LiberationSansBoldWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldMapping
};
t["Arial-ItalicMT"] = t["Arial-Italic"] = {
name: "LiberationSans-Italic",
baseWidths: _liberationsans_widths.LiberationSansItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansItalicMapping
};
t["Arial-BoldItalicMT"] = t["Arial-BoldItalic"] = {
name: "LiberationSans-BoldItalic",
baseWidths: _liberationsans_widths.LiberationSansBoldItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldItalicMapping
};
t["Calibri-Regular"] = {
name: "LiberationSans-Regular",
factors: _calibri_factors.CalibriRegularFactors,
baseWidths: _liberationsans_widths.LiberationSansRegularWidths,
baseMapping: _liberationsans_widths.LiberationSansRegularMapping,
metrics: _calibri_factors.CalibriRegularMetrics
};
t["Calibri-Bold"] = {
name: "LiberationSans-Bold",
factors: _calibri_factors.CalibriBoldFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldMapping,
metrics: _calibri_factors.CalibriBoldMetrics
};
t["Calibri-Italic"] = {
name: "LiberationSans-Italic",
factors: _calibri_factors.CalibriItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansItalicMapping,
metrics: _calibri_factors.CalibriItalicMetrics
};
t["Calibri-BoldItalic"] = {
name: "LiberationSans-BoldItalic",
factors: _calibri_factors.CalibriBoldItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldItalicMapping,
metrics: _calibri_factors.CalibriBoldItalicMetrics
};
t["Segoeui-Regular"] = {
name: "LiberationSans-Regular",
factors: _segoeui_factors.SegoeuiRegularFactors,
baseWidths: _liberationsans_widths.LiberationSansRegularWidths,
baseMapping: _liberationsans_widths.LiberationSansRegularMapping,
metrics: _segoeui_factors.SegoeuiRegularMetrics
};
t["Segoeui-Bold"] = {
name: "LiberationSans-Bold",
factors: _segoeui_factors.SegoeuiBoldFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldMapping,
metrics: _segoeui_factors.SegoeuiBoldMetrics
};
t["Segoeui-Italic"] = {
name: "LiberationSans-Italic",
factors: _segoeui_factors.SegoeuiItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansItalicMapping,
metrics: _segoeui_factors.SegoeuiItalicMetrics
};
t["Segoeui-BoldItalic"] = {
name: "LiberationSans-BoldItalic",
factors: _segoeui_factors.SegoeuiBoldItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldItalicMapping,
metrics: _segoeui_factors.SegoeuiBoldItalicMetrics
};
t["Helvetica-Regular"] = t.Helvetica = {
name: "LiberationSans-Regular",
factors: _helvetica_factors.HelveticaRegularFactors,
baseWidths: _liberationsans_widths.LiberationSansRegularWidths,
baseMapping: _liberationsans_widths.LiberationSansRegularMapping,
metrics: _helvetica_factors.HelveticaRegularMetrics
};
t["Helvetica-Bold"] = {
name: "LiberationSans-Bold",
factors: _helvetica_factors.HelveticaBoldFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldMapping,
metrics: _helvetica_factors.HelveticaBoldMetrics
};
t["Helvetica-Italic"] = {
name: "LiberationSans-Italic",
factors: _helvetica_factors.HelveticaItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansItalicMapping,
metrics: _helvetica_factors.HelveticaItalicMetrics
};
t["Helvetica-BoldItalic"] = {
name: "LiberationSans-BoldItalic",
factors: _helvetica_factors.HelveticaBoldItalicFactors,
baseWidths: _liberationsans_widths.LiberationSansBoldItalicWidths,
baseMapping: _liberationsans_widths.LiberationSansBoldItalicMapping,
metrics: _helvetica_factors.HelveticaBoldItalicMetrics
};
});
function getXfaFontName(name) {
const fontName = (0, _fonts_utils.normalizeFontName)(name);
const fontMap = getXFAFontMap();
return fontMap[fontName];
}
function getXfaFontWidths(name) {
const info = getXfaFontName(name);
if (!info) {
return null;
}
const {
baseWidths,
baseMapping,
factors
} = info;
let rescaledBaseWidths;
if (!factors) {
rescaledBaseWidths = baseWidths;
} else {
rescaledBaseWidths = baseWidths.map((w, i) => w * factors[i]);
}
let currentCode = -2;
let currentArray;
const newWidths = [];
for (const [unicode, glyphIndex] of baseMapping.map((charUnicode, index) => [charUnicode, index]).sort(([unicode1], [unicode2]) => unicode1 - unicode2)) {
if (unicode === -1) {
continue;
}
if (unicode === currentCode + 1) {
currentArray.push(rescaledBaseWidths[glyphIndex]);
currentCode += 1;
} else {
currentCode = unicode;
currentArray = [rescaledBaseWidths[glyphIndex]];
newWidths.push(unicode, currentArray);
}
}
return newWidths;
}
function getXfaFontDict(name) {
const widths = getXfaFontWidths(name);
const dict = new _primitives.Dict(null);
dict.set("BaseFont", _primitives.Name.get(name));
dict.set("Type", _primitives.Name.get("Font"));
dict.set("Subtype", _primitives.Name.get("CIDFontType2"));
dict.set("Encoding", _primitives.Name.get("Identity-H"));
dict.set("CIDToGIDMap", _primitives.Name.get("Identity"));
dict.set("W", widths);
dict.set("FirstChar", widths[0]);
dict.set("LastChar", widths.at(-2) + widths.at(-1).length - 1);
const descriptor = new _primitives.Dict(null);
dict.set("FontDescriptor", descriptor);
const systemInfo = new _primitives.Dict(null);
systemInfo.set("Ordering", "Identity");
systemInfo.set("Registry", "Adobe");
systemInfo.set("Supplement", 0);
dict.set("CIDSystemInfo", systemInfo);
return dict;
}