/**
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* @licstart The following is the entire license notice for the
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* JavaScript code in this page
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*
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* Copyright 2022 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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* @licend The above is the entire license notice for the
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* JavaScript code in this page
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*/
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"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.createDefaultAppearance = createDefaultAppearance;
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exports.getPdfColor = getPdfColor;
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exports.parseDefaultAppearance = parseDefaultAppearance;
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var _core_utils = require("./core_utils.js");
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var _util = require("../shared/util.js");
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var _colorspace = require("./colorspace.js");
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var _evaluator = require("./evaluator.js");
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var _primitives = require("./primitives.js");
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var _stream = require("./stream.js");
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class DefaultAppearanceEvaluator extends _evaluator.EvaluatorPreprocessor {
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constructor(str) {
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super(new _stream.StringStream(str));
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}
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parse() {
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const operation = {
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fn: 0,
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args: []
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};
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const result = {
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fontSize: 0,
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fontName: "",
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fontColor: new Uint8ClampedArray(3)
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};
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try {
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while (true) {
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operation.args.length = 0;
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if (!this.read(operation)) {
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break;
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}
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if (this.savedStatesDepth !== 0) {
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continue;
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}
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const {
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fn,
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args
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} = operation;
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switch (fn | 0) {
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case _util.OPS.setFont:
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const [fontName, fontSize] = args;
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if (fontName instanceof _primitives.Name) {
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result.fontName = fontName.name;
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}
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if (typeof fontSize === "number" && fontSize > 0) {
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result.fontSize = fontSize;
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}
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break;
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case _util.OPS.setFillRGBColor:
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_colorspace.ColorSpace.singletons.rgb.getRgbItem(args, 0, result.fontColor, 0);
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break;
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case _util.OPS.setFillGray:
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_colorspace.ColorSpace.singletons.gray.getRgbItem(args, 0, result.fontColor, 0);
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break;
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case _util.OPS.setFillColorSpace:
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_colorspace.ColorSpace.singletons.cmyk.getRgbItem(args, 0, result.fontColor, 0);
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break;
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}
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}
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} catch (reason) {
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(0, _util.warn)(`parseDefaultAppearance - ignoring errors: "${reason}".`);
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}
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return result;
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}
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}
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function parseDefaultAppearance(str) {
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return new DefaultAppearanceEvaluator(str).parse();
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}
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function getPdfColor(color, isFill) {
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if (color[0] === color[1] && color[1] === color[2]) {
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const gray = color[0] / 255;
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return `${(0, _core_utils.numberToString)(gray)} ${isFill ? "g" : "G"}`;
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}
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return Array.from(color).map(c => (0, _core_utils.numberToString)(c / 255)).join(" ") + ` ${isFill ? "rg" : "RG"}`;
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}
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function createDefaultAppearance({
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fontSize,
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fontName,
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fontColor
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}) {
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return `/${(0, _core_utils.escapePDFName)(fontName)} ${fontSize} Tf ${getPdfColor(fontColor, true)}`;
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}
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