1060 lines
26 KiB
JavaScript
1060 lines
26 KiB
JavaScript
/**
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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.VerbosityLevel = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.UNSUPPORTED_FEATURES = exports.TextRenderingMode = exports.StreamType = exports.RenderingIntentFlag = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.PageActionEventType = exports.OPS = exports.MissingPDFException = exports.LINE_FACTOR = exports.LINE_DESCENT_FACTOR = exports.InvalidPDFException = exports.ImageKind = exports.IDENTITY_MATRIX = exports.FormatError = exports.FontType = exports.FeatureTest = exports.FONT_IDENTITY_MATRIX = exports.DocumentActionEventType = exports.CMapCompressionType = exports.BaseException = exports.AnnotationType = exports.AnnotationStateModelType = exports.AnnotationReviewState = exports.AnnotationReplyType = exports.AnnotationMode = exports.AnnotationMarkedState = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationEditorType = exports.AnnotationEditorPrefix = exports.AnnotationEditorParamsType = exports.AnnotationBorderStyleType = exports.AnnotationActionEventType = exports.AbortException = void 0;
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exports.arrayByteLength = arrayByteLength;
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exports.arraysToBytes = arraysToBytes;
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exports.assert = assert;
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exports.bytesToString = bytesToString;
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exports.createPromiseCapability = createPromiseCapability;
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exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
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exports.escapeString = escapeString;
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exports.getModificationDate = getModificationDate;
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exports.getVerbosityLevel = getVerbosityLevel;
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exports.info = info;
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exports.isArrayBuffer = isArrayBuffer;
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exports.isArrayEqual = isArrayEqual;
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exports.isAscii = isAscii;
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exports.objectFromMap = objectFromMap;
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exports.objectSize = objectSize;
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exports.setVerbosityLevel = setVerbosityLevel;
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exports.shadow = shadow;
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exports.string32 = string32;
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exports.stringToBytes = stringToBytes;
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exports.stringToPDFString = stringToPDFString;
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exports.stringToUTF16BEString = stringToUTF16BEString;
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exports.stringToUTF8String = stringToUTF8String;
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exports.unreachable = unreachable;
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exports.utf8StringToString = utf8StringToString;
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exports.warn = warn;
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require("./compatibility.js");
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const IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
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exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
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const FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
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exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
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const LINE_FACTOR = 1.35;
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exports.LINE_FACTOR = LINE_FACTOR;
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const LINE_DESCENT_FACTOR = 0.35;
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exports.LINE_DESCENT_FACTOR = LINE_DESCENT_FACTOR;
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const RenderingIntentFlag = {
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ANY: 0x01,
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DISPLAY: 0x02,
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PRINT: 0x04,
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ANNOTATIONS_FORMS: 0x10,
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ANNOTATIONS_STORAGE: 0x20,
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ANNOTATIONS_DISABLE: 0x40,
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OPLIST: 0x100
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};
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exports.RenderingIntentFlag = RenderingIntentFlag;
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const AnnotationMode = {
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DISABLE: 0,
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ENABLE: 1,
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ENABLE_FORMS: 2,
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ENABLE_STORAGE: 3
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};
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exports.AnnotationMode = AnnotationMode;
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const AnnotationEditorPrefix = "pdfjs_internal_editor_";
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exports.AnnotationEditorPrefix = AnnotationEditorPrefix;
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const AnnotationEditorType = {
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DISABLE: -1,
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NONE: 0,
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FREETEXT: 3,
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INK: 15
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};
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exports.AnnotationEditorType = AnnotationEditorType;
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const AnnotationEditorParamsType = {
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FREETEXT_SIZE: 1,
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FREETEXT_COLOR: 2,
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FREETEXT_OPACITY: 3,
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INK_COLOR: 11,
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INK_THICKNESS: 12,
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INK_OPACITY: 13
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};
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exports.AnnotationEditorParamsType = AnnotationEditorParamsType;
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const PermissionFlag = {
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PRINT: 0x04,
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MODIFY_CONTENTS: 0x08,
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COPY: 0x10,
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MODIFY_ANNOTATIONS: 0x20,
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FILL_INTERACTIVE_FORMS: 0x100,
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COPY_FOR_ACCESSIBILITY: 0x200,
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ASSEMBLE: 0x400,
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PRINT_HIGH_QUALITY: 0x800
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};
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exports.PermissionFlag = PermissionFlag;
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const TextRenderingMode = {
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FILL: 0,
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STROKE: 1,
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FILL_STROKE: 2,
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INVISIBLE: 3,
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FILL_ADD_TO_PATH: 4,
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STROKE_ADD_TO_PATH: 5,
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FILL_STROKE_ADD_TO_PATH: 6,
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ADD_TO_PATH: 7,
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FILL_STROKE_MASK: 3,
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ADD_TO_PATH_FLAG: 4
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};
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exports.TextRenderingMode = TextRenderingMode;
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const ImageKind = {
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GRAYSCALE_1BPP: 1,
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RGB_24BPP: 2,
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RGBA_32BPP: 3
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};
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exports.ImageKind = ImageKind;
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const AnnotationType = {
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TEXT: 1,
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LINK: 2,
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FREETEXT: 3,
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LINE: 4,
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SQUARE: 5,
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CIRCLE: 6,
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POLYGON: 7,
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POLYLINE: 8,
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HIGHLIGHT: 9,
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UNDERLINE: 10,
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SQUIGGLY: 11,
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STRIKEOUT: 12,
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STAMP: 13,
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CARET: 14,
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INK: 15,
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POPUP: 16,
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FILEATTACHMENT: 17,
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SOUND: 18,
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MOVIE: 19,
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WIDGET: 20,
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SCREEN: 21,
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PRINTERMARK: 22,
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TRAPNET: 23,
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WATERMARK: 24,
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THREED: 25,
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REDACT: 26
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};
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exports.AnnotationType = AnnotationType;
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const AnnotationStateModelType = {
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MARKED: "Marked",
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REVIEW: "Review"
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};
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exports.AnnotationStateModelType = AnnotationStateModelType;
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const AnnotationMarkedState = {
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MARKED: "Marked",
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UNMARKED: "Unmarked"
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};
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exports.AnnotationMarkedState = AnnotationMarkedState;
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const AnnotationReviewState = {
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ACCEPTED: "Accepted",
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REJECTED: "Rejected",
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CANCELLED: "Cancelled",
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COMPLETED: "Completed",
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NONE: "None"
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};
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exports.AnnotationReviewState = AnnotationReviewState;
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const AnnotationReplyType = {
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GROUP: "Group",
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REPLY: "R"
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};
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exports.AnnotationReplyType = AnnotationReplyType;
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const AnnotationFlag = {
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INVISIBLE: 0x01,
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HIDDEN: 0x02,
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PRINT: 0x04,
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NOZOOM: 0x08,
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NOROTATE: 0x10,
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NOVIEW: 0x20,
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READONLY: 0x40,
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LOCKED: 0x80,
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TOGGLENOVIEW: 0x100,
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LOCKEDCONTENTS: 0x200
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};
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exports.AnnotationFlag = AnnotationFlag;
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const AnnotationFieldFlag = {
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READONLY: 0x0000001,
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REQUIRED: 0x0000002,
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NOEXPORT: 0x0000004,
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MULTILINE: 0x0001000,
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PASSWORD: 0x0002000,
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NOTOGGLETOOFF: 0x0004000,
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RADIO: 0x0008000,
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PUSHBUTTON: 0x0010000,
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COMBO: 0x0020000,
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EDIT: 0x0040000,
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SORT: 0x0080000,
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FILESELECT: 0x0100000,
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MULTISELECT: 0x0200000,
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DONOTSPELLCHECK: 0x0400000,
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DONOTSCROLL: 0x0800000,
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COMB: 0x1000000,
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RICHTEXT: 0x2000000,
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RADIOSINUNISON: 0x2000000,
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COMMITONSELCHANGE: 0x4000000
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};
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exports.AnnotationFieldFlag = AnnotationFieldFlag;
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const AnnotationBorderStyleType = {
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SOLID: 1,
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DASHED: 2,
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BEVELED: 3,
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INSET: 4,
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UNDERLINE: 5
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};
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exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
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const AnnotationActionEventType = {
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E: "Mouse Enter",
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X: "Mouse Exit",
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D: "Mouse Down",
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U: "Mouse Up",
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Fo: "Focus",
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Bl: "Blur",
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PO: "PageOpen",
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PC: "PageClose",
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PV: "PageVisible",
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PI: "PageInvisible",
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K: "Keystroke",
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F: "Format",
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V: "Validate",
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C: "Calculate"
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};
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exports.AnnotationActionEventType = AnnotationActionEventType;
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const DocumentActionEventType = {
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WC: "WillClose",
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WS: "WillSave",
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DS: "DidSave",
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WP: "WillPrint",
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DP: "DidPrint"
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};
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exports.DocumentActionEventType = DocumentActionEventType;
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const PageActionEventType = {
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O: "PageOpen",
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C: "PageClose"
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};
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exports.PageActionEventType = PageActionEventType;
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const StreamType = {
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UNKNOWN: "UNKNOWN",
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FLATE: "FLATE",
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LZW: "LZW",
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DCT: "DCT",
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JPX: "JPX",
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JBIG: "JBIG",
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A85: "A85",
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AHX: "AHX",
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CCF: "CCF",
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RLX: "RLX"
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};
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exports.StreamType = StreamType;
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const FontType = {
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UNKNOWN: "UNKNOWN",
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TYPE1: "TYPE1",
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TYPE1STANDARD: "TYPE1STANDARD",
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TYPE1C: "TYPE1C",
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CIDFONTTYPE0: "CIDFONTTYPE0",
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CIDFONTTYPE0C: "CIDFONTTYPE0C",
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TRUETYPE: "TRUETYPE",
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CIDFONTTYPE2: "CIDFONTTYPE2",
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TYPE3: "TYPE3",
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OPENTYPE: "OPENTYPE",
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TYPE0: "TYPE0",
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MMTYPE1: "MMTYPE1"
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};
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exports.FontType = FontType;
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const VerbosityLevel = {
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ERRORS: 0,
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WARNINGS: 1,
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INFOS: 5
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};
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exports.VerbosityLevel = VerbosityLevel;
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const CMapCompressionType = {
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NONE: 0,
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BINARY: 1,
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STREAM: 2
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};
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exports.CMapCompressionType = CMapCompressionType;
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const OPS = {
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dependency: 1,
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setLineWidth: 2,
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setLineCap: 3,
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setLineJoin: 4,
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setMiterLimit: 5,
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setDash: 6,
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setRenderingIntent: 7,
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setFlatness: 8,
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setGState: 9,
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save: 10,
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restore: 11,
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transform: 12,
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moveTo: 13,
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lineTo: 14,
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curveTo: 15,
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curveTo2: 16,
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curveTo3: 17,
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closePath: 18,
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rectangle: 19,
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stroke: 20,
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closeStroke: 21,
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fill: 22,
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eoFill: 23,
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fillStroke: 24,
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eoFillStroke: 25,
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closeFillStroke: 26,
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closeEOFillStroke: 27,
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endPath: 28,
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clip: 29,
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eoClip: 30,
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beginText: 31,
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endText: 32,
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setCharSpacing: 33,
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setWordSpacing: 34,
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setHScale: 35,
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setLeading: 36,
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setFont: 37,
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setTextRenderingMode: 38,
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setTextRise: 39,
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moveText: 40,
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setLeadingMoveText: 41,
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setTextMatrix: 42,
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nextLine: 43,
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showText: 44,
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showSpacedText: 45,
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nextLineShowText: 46,
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nextLineSetSpacingShowText: 47,
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setCharWidth: 48,
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setCharWidthAndBounds: 49,
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setStrokeColorSpace: 50,
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setFillColorSpace: 51,
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setStrokeColor: 52,
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setStrokeColorN: 53,
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setFillColor: 54,
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setFillColorN: 55,
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setStrokeGray: 56,
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setFillGray: 57,
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setStrokeRGBColor: 58,
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setFillRGBColor: 59,
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setStrokeCMYKColor: 60,
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setFillCMYKColor: 61,
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shadingFill: 62,
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beginInlineImage: 63,
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beginImageData: 64,
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endInlineImage: 65,
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paintXObject: 66,
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markPoint: 67,
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markPointProps: 68,
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beginMarkedContent: 69,
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beginMarkedContentProps: 70,
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endMarkedContent: 71,
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beginCompat: 72,
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endCompat: 73,
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paintFormXObjectBegin: 74,
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paintFormXObjectEnd: 75,
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beginGroup: 76,
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endGroup: 77,
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beginAnnotations: 78,
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endAnnotations: 79,
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beginAnnotation: 80,
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endAnnotation: 81,
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paintJpegXObject: 82,
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paintImageMaskXObject: 83,
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paintImageMaskXObjectGroup: 84,
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paintImageXObject: 85,
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paintInlineImageXObject: 86,
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paintInlineImageXObjectGroup: 87,
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paintImageXObjectRepeat: 88,
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paintImageMaskXObjectRepeat: 89,
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paintSolidColorImageMask: 90,
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constructPath: 91
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};
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exports.OPS = OPS;
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const UNSUPPORTED_FEATURES = {
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unknown: "unknown",
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forms: "forms",
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javaScript: "javaScript",
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signatures: "signatures",
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smask: "smask",
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shadingPattern: "shadingPattern",
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font: "font",
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errorTilingPattern: "errorTilingPattern",
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errorExtGState: "errorExtGState",
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errorXObject: "errorXObject",
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errorFontLoadType3: "errorFontLoadType3",
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errorFontState: "errorFontState",
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errorFontMissing: "errorFontMissing",
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errorFontTranslate: "errorFontTranslate",
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errorColorSpace: "errorColorSpace",
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errorOperatorList: "errorOperatorList",
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errorFontToUnicode: "errorFontToUnicode",
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errorFontLoadNative: "errorFontLoadNative",
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errorFontBuildPath: "errorFontBuildPath",
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errorFontGetPath: "errorFontGetPath",
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errorMarkedContent: "errorMarkedContent",
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errorContentSubStream: "errorContentSubStream"
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};
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exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
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const PasswordResponses = {
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NEED_PASSWORD: 1,
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INCORRECT_PASSWORD: 2
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};
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exports.PasswordResponses = PasswordResponses;
|
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let verbosity = VerbosityLevel.WARNINGS;
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function setVerbosityLevel(level) {
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if (Number.isInteger(level)) {
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verbosity = level;
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}
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}
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function getVerbosityLevel() {
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return verbosity;
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}
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function info(msg) {
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if (verbosity >= VerbosityLevel.INFOS) {
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console.log(`Info: ${msg}`);
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}
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}
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function warn(msg) {
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if (verbosity >= VerbosityLevel.WARNINGS) {
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console.log(`Warning: ${msg}`);
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}
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}
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|
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function unreachable(msg) {
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throw new Error(msg);
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}
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|
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function assert(cond, msg) {
|
|
if (!cond) {
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unreachable(msg);
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}
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}
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|
|
|
function _isValidProtocol(url) {
|
|
if (!url) {
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return false;
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}
|
|
|
|
switch (url.protocol) {
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case "http:":
|
|
case "https:":
|
|
case "ftp:":
|
|
case "mailto:":
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case "tel:":
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return true;
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|
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default:
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return false;
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}
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}
|
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|
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function createValidAbsoluteUrl(url, baseUrl = null, options = null) {
|
|
if (!url) {
|
|
return null;
|
|
}
|
|
|
|
try {
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|
if (options && typeof url === "string") {
|
|
if (options.addDefaultProtocol && url.startsWith("www.")) {
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|
const dots = url.match(/\./g);
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|
|
|
if (dots && dots.length >= 2) {
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url = `http://${url}`;
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|
}
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|
}
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|
|
|
if (options.tryConvertEncoding) {
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try {
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url = stringToUTF8String(url);
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|
} catch (ex) {}
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|
}
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|
}
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|
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const absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);
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|
|
|
if (_isValidProtocol(absoluteUrl)) {
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return absoluteUrl;
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|
}
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|
} catch (ex) {}
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|
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return null;
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|
}
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|
|
function shadow(obj, prop, value) {
|
|
Object.defineProperty(obj, prop, {
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|
value,
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|
enumerable: true,
|
|
configurable: true,
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|
writable: false
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|
});
|
|
return value;
|
|
}
|
|
|
|
const BaseException = function BaseExceptionClosure() {
|
|
function BaseException(message, name) {
|
|
if (this.constructor === BaseException) {
|
|
unreachable("Cannot initialize BaseException.");
|
|
}
|
|
|
|
this.message = message;
|
|
this.name = name;
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|
}
|
|
|
|
BaseException.prototype = new Error();
|
|
BaseException.constructor = BaseException;
|
|
return BaseException;
|
|
}();
|
|
|
|
exports.BaseException = BaseException;
|
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|
|
class PasswordException extends BaseException {
|
|
constructor(msg, code) {
|
|
super(msg, "PasswordException");
|
|
this.code = code;
|
|
}
|
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|
|
}
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|
|
exports.PasswordException = PasswordException;
|
|
|
|
class UnknownErrorException extends BaseException {
|
|
constructor(msg, details) {
|
|
super(msg, "UnknownErrorException");
|
|
this.details = details;
|
|
}
|
|
|
|
}
|
|
|
|
exports.UnknownErrorException = UnknownErrorException;
|
|
|
|
class InvalidPDFException extends BaseException {
|
|
constructor(msg) {
|
|
super(msg, "InvalidPDFException");
|
|
}
|
|
|
|
}
|
|
|
|
exports.InvalidPDFException = InvalidPDFException;
|
|
|
|
class MissingPDFException extends BaseException {
|
|
constructor(msg) {
|
|
super(msg, "MissingPDFException");
|
|
}
|
|
|
|
}
|
|
|
|
exports.MissingPDFException = MissingPDFException;
|
|
|
|
class UnexpectedResponseException extends BaseException {
|
|
constructor(msg, status) {
|
|
super(msg, "UnexpectedResponseException");
|
|
this.status = status;
|
|
}
|
|
|
|
}
|
|
|
|
exports.UnexpectedResponseException = UnexpectedResponseException;
|
|
|
|
class FormatError extends BaseException {
|
|
constructor(msg) {
|
|
super(msg, "FormatError");
|
|
}
|
|
|
|
}
|
|
|
|
exports.FormatError = FormatError;
|
|
|
|
class AbortException extends BaseException {
|
|
constructor(msg) {
|
|
super(msg, "AbortException");
|
|
}
|
|
|
|
}
|
|
|
|
exports.AbortException = AbortException;
|
|
|
|
function bytesToString(bytes) {
|
|
if (typeof bytes !== "object" || bytes === null || bytes.length === undefined) {
|
|
unreachable("Invalid argument for bytesToString");
|
|
}
|
|
|
|
const length = bytes.length;
|
|
const MAX_ARGUMENT_COUNT = 8192;
|
|
|
|
if (length < MAX_ARGUMENT_COUNT) {
|
|
return String.fromCharCode.apply(null, bytes);
|
|
}
|
|
|
|
const strBuf = [];
|
|
|
|
for (let i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
|
|
const chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
|
|
const chunk = bytes.subarray(i, chunkEnd);
|
|
strBuf.push(String.fromCharCode.apply(null, chunk));
|
|
}
|
|
|
|
return strBuf.join("");
|
|
}
|
|
|
|
function stringToBytes(str) {
|
|
if (typeof str !== "string") {
|
|
unreachable("Invalid argument for stringToBytes");
|
|
}
|
|
|
|
const length = str.length;
|
|
const bytes = new Uint8Array(length);
|
|
|
|
for (let i = 0; i < length; ++i) {
|
|
bytes[i] = str.charCodeAt(i) & 0xff;
|
|
}
|
|
|
|
return bytes;
|
|
}
|
|
|
|
function arrayByteLength(arr) {
|
|
if (arr.length !== undefined) {
|
|
return arr.length;
|
|
}
|
|
|
|
if (arr.byteLength !== undefined) {
|
|
return arr.byteLength;
|
|
}
|
|
|
|
unreachable("Invalid argument for arrayByteLength");
|
|
}
|
|
|
|
function arraysToBytes(arr) {
|
|
const length = arr.length;
|
|
|
|
if (length === 1 && arr[0] instanceof Uint8Array) {
|
|
return arr[0];
|
|
}
|
|
|
|
let resultLength = 0;
|
|
|
|
for (let i = 0; i < length; i++) {
|
|
resultLength += arrayByteLength(arr[i]);
|
|
}
|
|
|
|
let pos = 0;
|
|
const data = new Uint8Array(resultLength);
|
|
|
|
for (let i = 0; i < length; i++) {
|
|
let item = arr[i];
|
|
|
|
if (!(item instanceof Uint8Array)) {
|
|
if (typeof item === "string") {
|
|
item = stringToBytes(item);
|
|
} else {
|
|
item = new Uint8Array(item);
|
|
}
|
|
}
|
|
|
|
const itemLength = item.byteLength;
|
|
data.set(item, pos);
|
|
pos += itemLength;
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
function string32(value) {
|
|
return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
|
|
}
|
|
|
|
function objectSize(obj) {
|
|
return Object.keys(obj).length;
|
|
}
|
|
|
|
function objectFromMap(map) {
|
|
const obj = Object.create(null);
|
|
|
|
for (const [key, value] of map) {
|
|
obj[key] = value;
|
|
}
|
|
|
|
return obj;
|
|
}
|
|
|
|
function isLittleEndian() {
|
|
const buffer8 = new Uint8Array(4);
|
|
buffer8[0] = 1;
|
|
const view32 = new Uint32Array(buffer8.buffer, 0, 1);
|
|
return view32[0] === 1;
|
|
}
|
|
|
|
function isEvalSupported() {
|
|
try {
|
|
new Function("");
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
class FeatureTest {
|
|
static get isLittleEndian() {
|
|
return shadow(this, "isLittleEndian", isLittleEndian());
|
|
}
|
|
|
|
static get isEvalSupported() {
|
|
return shadow(this, "isEvalSupported", isEvalSupported());
|
|
}
|
|
|
|
static get isOffscreenCanvasSupported() {
|
|
return shadow(this, "isOffscreenCanvasSupported", typeof OffscreenCanvas !== "undefined");
|
|
}
|
|
|
|
}
|
|
|
|
exports.FeatureTest = FeatureTest;
|
|
const hexNumbers = [...Array(256).keys()].map(n => n.toString(16).padStart(2, "0"));
|
|
|
|
class Util {
|
|
static makeHexColor(r, g, b) {
|
|
return `#${hexNumbers[r]}${hexNumbers[g]}${hexNumbers[b]}`;
|
|
}
|
|
|
|
static scaleMinMax(transform, minMax) {
|
|
let temp;
|
|
|
|
if (transform[0]) {
|
|
if (transform[0] < 0) {
|
|
temp = minMax[0];
|
|
minMax[0] = minMax[1];
|
|
minMax[1] = temp;
|
|
}
|
|
|
|
minMax[0] *= transform[0];
|
|
minMax[1] *= transform[0];
|
|
|
|
if (transform[3] < 0) {
|
|
temp = minMax[2];
|
|
minMax[2] = minMax[3];
|
|
minMax[3] = temp;
|
|
}
|
|
|
|
minMax[2] *= transform[3];
|
|
minMax[3] *= transform[3];
|
|
} else {
|
|
temp = minMax[0];
|
|
minMax[0] = minMax[2];
|
|
minMax[2] = temp;
|
|
temp = minMax[1];
|
|
minMax[1] = minMax[3];
|
|
minMax[3] = temp;
|
|
|
|
if (transform[1] < 0) {
|
|
temp = minMax[2];
|
|
minMax[2] = minMax[3];
|
|
minMax[3] = temp;
|
|
}
|
|
|
|
minMax[2] *= transform[1];
|
|
minMax[3] *= transform[1];
|
|
|
|
if (transform[2] < 0) {
|
|
temp = minMax[0];
|
|
minMax[0] = minMax[1];
|
|
minMax[1] = temp;
|
|
}
|
|
|
|
minMax[0] *= transform[2];
|
|
minMax[1] *= transform[2];
|
|
}
|
|
|
|
minMax[0] += transform[4];
|
|
minMax[1] += transform[4];
|
|
minMax[2] += transform[5];
|
|
minMax[3] += transform[5];
|
|
}
|
|
|
|
static transform(m1, m2) {
|
|
return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
|
|
}
|
|
|
|
static applyTransform(p, m) {
|
|
const xt = p[0] * m[0] + p[1] * m[2] + m[4];
|
|
const yt = p[0] * m[1] + p[1] * m[3] + m[5];
|
|
return [xt, yt];
|
|
}
|
|
|
|
static applyInverseTransform(p, m) {
|
|
const d = m[0] * m[3] - m[1] * m[2];
|
|
const xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
|
|
const yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
|
|
return [xt, yt];
|
|
}
|
|
|
|
static getAxialAlignedBoundingBox(r, m) {
|
|
const p1 = Util.applyTransform(r, m);
|
|
const p2 = Util.applyTransform(r.slice(2, 4), m);
|
|
const p3 = Util.applyTransform([r[0], r[3]], m);
|
|
const p4 = Util.applyTransform([r[2], r[1]], m);
|
|
return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
|
|
}
|
|
|
|
static inverseTransform(m) {
|
|
const d = m[0] * m[3] - m[1] * m[2];
|
|
return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
|
|
}
|
|
|
|
static apply3dTransform(m, v) {
|
|
return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
|
|
}
|
|
|
|
static singularValueDecompose2dScale(m) {
|
|
const transpose = [m[0], m[2], m[1], m[3]];
|
|
const a = m[0] * transpose[0] + m[1] * transpose[2];
|
|
const b = m[0] * transpose[1] + m[1] * transpose[3];
|
|
const c = m[2] * transpose[0] + m[3] * transpose[2];
|
|
const d = m[2] * transpose[1] + m[3] * transpose[3];
|
|
const first = (a + d) / 2;
|
|
const second = Math.sqrt((a + d) ** 2 - 4 * (a * d - c * b)) / 2;
|
|
const sx = first + second || 1;
|
|
const sy = first - second || 1;
|
|
return [Math.sqrt(sx), Math.sqrt(sy)];
|
|
}
|
|
|
|
static normalizeRect(rect) {
|
|
const r = rect.slice(0);
|
|
|
|
if (rect[0] > rect[2]) {
|
|
r[0] = rect[2];
|
|
r[2] = rect[0];
|
|
}
|
|
|
|
if (rect[1] > rect[3]) {
|
|
r[1] = rect[3];
|
|
r[3] = rect[1];
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static intersect(rect1, rect2) {
|
|
const xLow = Math.max(Math.min(rect1[0], rect1[2]), Math.min(rect2[0], rect2[2]));
|
|
const xHigh = Math.min(Math.max(rect1[0], rect1[2]), Math.max(rect2[0], rect2[2]));
|
|
|
|
if (xLow > xHigh) {
|
|
return null;
|
|
}
|
|
|
|
const yLow = Math.max(Math.min(rect1[1], rect1[3]), Math.min(rect2[1], rect2[3]));
|
|
const yHigh = Math.min(Math.max(rect1[1], rect1[3]), Math.max(rect2[1], rect2[3]));
|
|
|
|
if (yLow > yHigh) {
|
|
return null;
|
|
}
|
|
|
|
return [xLow, yLow, xHigh, yHigh];
|
|
}
|
|
|
|
static bezierBoundingBox(x0, y0, x1, y1, x2, y2, x3, y3) {
|
|
const tvalues = [],
|
|
bounds = [[], []];
|
|
let a, b, c, t, t1, t2, b2ac, sqrtb2ac;
|
|
|
|
for (let i = 0; i < 2; ++i) {
|
|
if (i === 0) {
|
|
b = 6 * x0 - 12 * x1 + 6 * x2;
|
|
a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3;
|
|
c = 3 * x1 - 3 * x0;
|
|
} else {
|
|
b = 6 * y0 - 12 * y1 + 6 * y2;
|
|
a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3;
|
|
c = 3 * y1 - 3 * y0;
|
|
}
|
|
|
|
if (Math.abs(a) < 1e-12) {
|
|
if (Math.abs(b) < 1e-12) {
|
|
continue;
|
|
}
|
|
|
|
t = -c / b;
|
|
|
|
if (0 < t && t < 1) {
|
|
tvalues.push(t);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
b2ac = b * b - 4 * c * a;
|
|
sqrtb2ac = Math.sqrt(b2ac);
|
|
|
|
if (b2ac < 0) {
|
|
continue;
|
|
}
|
|
|
|
t1 = (-b + sqrtb2ac) / (2 * a);
|
|
|
|
if (0 < t1 && t1 < 1) {
|
|
tvalues.push(t1);
|
|
}
|
|
|
|
t2 = (-b - sqrtb2ac) / (2 * a);
|
|
|
|
if (0 < t2 && t2 < 1) {
|
|
tvalues.push(t2);
|
|
}
|
|
}
|
|
|
|
let j = tvalues.length,
|
|
mt;
|
|
const jlen = j;
|
|
|
|
while (j--) {
|
|
t = tvalues[j];
|
|
mt = 1 - t;
|
|
bounds[0][j] = mt * mt * mt * x0 + 3 * mt * mt * t * x1 + 3 * mt * t * t * x2 + t * t * t * x3;
|
|
bounds[1][j] = mt * mt * mt * y0 + 3 * mt * mt * t * y1 + 3 * mt * t * t * y2 + t * t * t * y3;
|
|
}
|
|
|
|
bounds[0][jlen] = x0;
|
|
bounds[1][jlen] = y0;
|
|
bounds[0][jlen + 1] = x3;
|
|
bounds[1][jlen + 1] = y3;
|
|
bounds[0].length = bounds[1].length = jlen + 2;
|
|
return [Math.min(...bounds[0]), Math.min(...bounds[1]), Math.max(...bounds[0]), Math.max(...bounds[1])];
|
|
}
|
|
|
|
}
|
|
|
|
exports.Util = Util;
|
|
const PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2d8, 0x2c7, 0x2c6, 0x2d9, 0x2dd, 0x2db, 0x2da, 0x2dc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018, 0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x141, 0x152, 0x160, 0x178, 0x17d, 0x131, 0x142, 0x153, 0x161, 0x17e, 0, 0x20ac];
|
|
|
|
function stringToPDFString(str) {
|
|
if (str[0] >= "\xEF") {
|
|
let encoding;
|
|
|
|
if (str[0] === "\xFE" && str[1] === "\xFF") {
|
|
encoding = "utf-16be";
|
|
} else if (str[0] === "\xFF" && str[1] === "\xFE") {
|
|
encoding = "utf-16le";
|
|
} else if (str[0] === "\xEF" && str[1] === "\xBB" && str[2] === "\xBF") {
|
|
encoding = "utf-8";
|
|
}
|
|
|
|
if (encoding) {
|
|
try {
|
|
const decoder = new TextDecoder(encoding, {
|
|
fatal: true
|
|
});
|
|
const buffer = stringToBytes(str);
|
|
return decoder.decode(buffer);
|
|
} catch (ex) {
|
|
warn(`stringToPDFString: "${ex}".`);
|
|
}
|
|
}
|
|
}
|
|
|
|
const strBuf = [];
|
|
|
|
for (let i = 0, ii = str.length; i < ii; i++) {
|
|
const code = PDFStringTranslateTable[str.charCodeAt(i)];
|
|
strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
|
|
}
|
|
|
|
return strBuf.join("");
|
|
}
|
|
|
|
function escapeString(str) {
|
|
return str.replace(/([()\\\n\r])/g, match => {
|
|
if (match === "\n") {
|
|
return "\\n";
|
|
} else if (match === "\r") {
|
|
return "\\r";
|
|
}
|
|
|
|
return `\\${match}`;
|
|
});
|
|
}
|
|
|
|
function isAscii(str) {
|
|
return /^[\x00-\x7F]*$/.test(str);
|
|
}
|
|
|
|
function stringToUTF16BEString(str) {
|
|
const buf = ["\xFE\xFF"];
|
|
|
|
for (let i = 0, ii = str.length; i < ii; i++) {
|
|
const char = str.charCodeAt(i);
|
|
buf.push(String.fromCharCode(char >> 8 & 0xff), String.fromCharCode(char & 0xff));
|
|
}
|
|
|
|
return buf.join("");
|
|
}
|
|
|
|
function stringToUTF8String(str) {
|
|
return decodeURIComponent(escape(str));
|
|
}
|
|
|
|
function utf8StringToString(str) {
|
|
return unescape(encodeURIComponent(str));
|
|
}
|
|
|
|
function isArrayBuffer(v) {
|
|
return typeof v === "object" && v !== null && v.byteLength !== undefined;
|
|
}
|
|
|
|
function isArrayEqual(arr1, arr2) {
|
|
if (arr1.length !== arr2.length) {
|
|
return false;
|
|
}
|
|
|
|
for (let i = 0, ii = arr1.length; i < ii; i++) {
|
|
if (arr1[i] !== arr2[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function getModificationDate(date = new Date()) {
|
|
const buffer = [date.getUTCFullYear().toString(), (date.getUTCMonth() + 1).toString().padStart(2, "0"), date.getUTCDate().toString().padStart(2, "0"), date.getUTCHours().toString().padStart(2, "0"), date.getUTCMinutes().toString().padStart(2, "0"), date.getUTCSeconds().toString().padStart(2, "0")];
|
|
return buffer.join("");
|
|
}
|
|
|
|
function createPromiseCapability() {
|
|
const capability = Object.create(null);
|
|
let isSettled = false;
|
|
Object.defineProperty(capability, "settled", {
|
|
get() {
|
|
return isSettled;
|
|
}
|
|
|
|
});
|
|
capability.promise = new Promise(function (resolve, reject) {
|
|
capability.resolve = function (data) {
|
|
isSettled = true;
|
|
resolve(data);
|
|
};
|
|
|
|
capability.reject = function (reason) {
|
|
isSettled = true;
|
|
reject(reason);
|
|
};
|
|
});
|
|
return capability;
|
|
} |