Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zxing-cpp/wrappers/ios/Sources/Wrapper/Writer/ZXIBarcodeWriter.mm @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 // Copyright 2022 KURZ Digital Solutions GmbH
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2 //
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3 // SPDX-License-Identifier: Apache-2.0
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4
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5 #import <CoreGraphics/CoreGraphics.h>
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6 #import "ZXIBarcodeWriter.h"
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7 #import "ZXIWriterOptions.h"
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8 #import "MultiFormatWriter.h"
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9 #import "BitMatrix.h"
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10 #import "BitMatrixIO.h"
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11 #import "ZXIFormatHelper.h"
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12 #import "ZXIErrors.h"
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13 #import <iostream>
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14
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15 using namespace ZXing;
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16
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17 std::wstring NSStringToStringW(NSString* str) {
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18 NSData* asData = [str dataUsingEncoding:CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingUTF32LE)];
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19 return std::wstring((wchar_t*)[asData bytes], [asData length] /
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20 sizeof(wchar_t));
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21 }
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22
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23 std::wstring NSDataToStringW(NSData *data) {
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24 std::wstring s;
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25 const unsigned char *bytes = (const unsigned char *) [data bytes];
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26 size_t len = [data length];
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27 for (int i = 0; i < len; ++i) {
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28 s.push_back(bytes[i]);
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29 }
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30 return s;
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31 }
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32
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33 @implementation ZXIBarcodeWriter
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34
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35 - (instancetype)init {
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36 return [self initWithOptions: [[ZXIWriterOptions alloc] init]];
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37 }
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38
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39 - (instancetype)initWithOptions:(ZXIWriterOptions*)options{
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40 self = [super init];
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41 self.options = options;
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42 return self;
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43 }
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44
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45 -(CGImageRef)writeData:(NSData *)data
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46 error:(NSError *__autoreleasing _Nullable *)error {
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47 return [self encode: NSDataToStringW(data)
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48 encoding: CharacterSet::BINARY
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49 format: self.options.format
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50 width: self.options.width
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51 height: self.options.height
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52 margin: self.options.margin
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53 ecLevel: self.options.ecLevel
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54 error: error];
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55 }
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56
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57 -(CGImageRef)writeString:(NSString *)contents
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58 error:(NSError *__autoreleasing _Nullable *)error {
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59 return [self encode: NSStringToStringW(contents)
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60 encoding: CharacterSet::UTF8
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61 format: self.options.format
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62 width: self.options.width
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63 height: self.options.height
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64 margin: self.options.margin
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65 ecLevel: self.options.ecLevel
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66 error: error];
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67 }
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68
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69 -(CGImageRef)encode:(std::wstring)content
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70 encoding:(CharacterSet)encoding
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71 format:(ZXIFormat)format
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72 width:(int)width
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73 height:(int)height
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74 margin:(int)margin
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75 ecLevel:(int)ecLevel
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76 error:(NSError *__autoreleasing _Nullable *)error {
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77 MultiFormatWriter writer { BarcodeFormatFromZXIFormat(format) };
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78 writer.setEncoding(encoding);
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79 writer.setMargin(margin);
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80 writer.setEccLevel(ecLevel);
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81 // Catch exception for invalid formats
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82 try {
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83 BitMatrix bitMatrix = writer.encode(content, width, height);
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84 return [self inflate:&bitMatrix];
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85 } catch(std::exception &e) {
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86 SetNSError(error, ZXIWriterError, e.what());
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87 return nil;
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88 }
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89 }
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90
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91 -(CGImageRef)inflate:(BitMatrix *)bitMatrix {
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92 int realWidth = bitMatrix->width();
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93 int realHeight = bitMatrix->height();
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94
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95 #ifdef DEBUG
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96 std::cout << ToString(*bitMatrix, 'X', ' ', false, false);
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97 #endif
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98
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99 NSMutableData *resultAsNSData = [[NSMutableData alloc] initWithLength:realWidth * realHeight];
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100 size_t index = 0;
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101 uint8_t *bytes = (uint8_t*)resultAsNSData.mutableBytes;
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102 for (int y = 0; y < realHeight; ++y) {
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103 for (int x = 0; x < realWidth; ++x) {
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104 bytes[index] = bitMatrix->get(x, y) ? 0 : 255;
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105 ++index;
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106 }
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107 }
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108
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109 CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericGray);
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110
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111 return CGImageCreate(realWidth,
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112 realHeight,
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113 8,
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114 8,
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115 realWidth,
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116 colorSpace,
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117 kCGBitmapByteOrderDefault,
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118 CGDataProviderCreateWithCFData((CFDataRef)resultAsNSData),
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119 NULL,
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120 YES,
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121 kCGRenderingIntentDefault);
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122 }
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123
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124 @end