diff options
Diffstat (limited to 'xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp | 586 |
1 files changed, 293 insertions, 293 deletions
diff --git a/xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp b/xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp index 18d1e96494..9c1a264232 100644 --- a/xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp +++ b/xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp @@ -1,293 +1,293 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-// Original code is licensed as follows:
-/*
- * Copyright 2008 ZXing authors
- *
- * 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.
- */
-
-#include <algorithm>
-
-#include "xfa/src/fxbarcode/barcode.h"
-#include "xfa/src/fxbarcode/BC_Reader.h"
-#include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
-#include "BC_OneDReader.h"
-#include "BC_OnedCode39Reader.h"
-const FX_CHAR* CBC_OnedCode39Reader::ALPHABET_STRING =
- "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%";
-const FX_CHAR* CBC_OnedCode39Reader::CHECKSUM_STRING =
- "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
-const int32_t CBC_OnedCode39Reader::CHARACTER_ENCODINGS[44] = {
- 0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124,
- 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C,
- 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007,
- 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0,
- 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A};
-const int32_t CBC_OnedCode39Reader::ASTERISK_ENCODING = 0x094;
-CBC_OnedCode39Reader::CBC_OnedCode39Reader()
- : m_usingCheckDigit(FALSE), m_extendedMode(FALSE) {
-}
-CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit)
- : m_usingCheckDigit(usingCheckDigit), m_extendedMode(FALSE) {
-}
-CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit,
- FX_BOOL extendedMode)
- : m_usingCheckDigit(usingCheckDigit), m_extendedMode(extendedMode) {
-}
-CBC_OnedCode39Reader::~CBC_OnedCode39Reader() {}
-CFX_ByteString CBC_OnedCode39Reader::DecodeRow(int32_t rowNumber,
- CBC_CommonBitArray* row,
- int32_t hints,
- int32_t& e) {
- CFX_Int32Array* start = FindAsteriskPattern(row, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- int32_t nextStart = (*start)[1];
- if (start != NULL) {
- delete start;
- start = NULL;
- }
- int32_t end = row->GetSize();
- while (nextStart < end && !row->Get(nextStart)) {
- nextStart++;
- }
- CFX_ByteString result;
- CFX_Int32Array counters;
- counters.SetSize(9);
- FX_CHAR decodedChar;
- int32_t lastStart;
- do {
- RecordPattern(row, nextStart, &counters, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- int32_t pattern = ToNarrowWidePattern(&counters);
- if (pattern < 0) {
- e = BCExceptionNotFound;
- return "";
- }
- decodedChar = PatternToChar(pattern, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- result += decodedChar;
- lastStart = nextStart;
- for (int32_t i = 0; i < counters.GetSize(); i++) {
- nextStart += counters[i];
- }
- while (nextStart < end && !row->Get(nextStart)) {
- nextStart++;
- }
- } while (decodedChar != '*');
- result = result.Mid(0, result.GetLength() - 1);
- int32_t lastPatternSize = 0;
- for (int32_t j = 0; j < counters.GetSize(); j++) {
- lastPatternSize += counters[j];
- }
- if (m_usingCheckDigit) {
- int32_t max = result.GetLength() - 1;
- int32_t total = 0;
- int32_t len = (int32_t)strlen(ALPHABET_STRING);
- for (int32_t k = 0; k < max; k++) {
- for (int32_t j = 0; j < len; j++)
- if (ALPHABET_STRING[j] == result[k]) {
- total += j;
- }
- }
- if (result[max] != (ALPHABET_STRING)[total % 43]) {
- e = BCExceptionChecksumException;
- return "";
- }
- result = result.Mid(0, result.GetLength() - 1);
- }
- if (result.GetLength() == 0) {
- e = BCExceptionNotFound;
- return "";
- }
- if (m_extendedMode) {
- CFX_ByteString bytestr = DecodeExtended(result, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- return bytestr;
- } else {
- return result;
- }
-}
-CFX_Int32Array* CBC_OnedCode39Reader::FindAsteriskPattern(
- CBC_CommonBitArray* row,
- int32_t& e) {
- int32_t width = row->GetSize();
- int32_t rowOffset = 0;
- while (rowOffset < width) {
- if (row->Get(rowOffset)) {
- break;
- }
- rowOffset++;
- }
- int32_t counterPosition = 0;
- CFX_Int32Array counters;
- counters.SetSize(9);
- int32_t patternStart = rowOffset;
- FX_BOOL isWhite = FALSE;
- int32_t patternLength = counters.GetSize();
- for (int32_t i = rowOffset; i < width; i++) {
- FX_BOOL pixel = row->Get(i);
- if (pixel ^ isWhite) {
- counters[counterPosition]++;
- } else {
- if (counterPosition == patternLength - 1) {
- if (ToNarrowWidePattern(&counters) == ASTERISK_ENCODING) {
- FX_BOOL bT1 =
- row->IsRange(std::max(0, patternStart - (i - patternStart) / 2),
- patternStart, FALSE, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- if (bT1) {
- CFX_Int32Array* result = new CFX_Int32Array;
- result->SetSize(2);
- (*result)[0] = patternStart;
- (*result)[1] = i;
- return result;
- }
- }
- patternStart += counters[0] + counters[1];
- for (int32_t y = 2; y < patternLength; y++) {
- counters[y - 2] = counters[y];
- }
- counters[patternLength - 2] = 0;
- counters[patternLength - 1] = 0;
- counterPosition--;
- } else {
- counterPosition++;
- }
- counters[counterPosition] = 1;
- isWhite = !isWhite;
- }
- }
- e = BCExceptionNotFound;
- return NULL;
-}
-int32_t CBC_OnedCode39Reader::ToNarrowWidePattern(CFX_Int32Array* counters) {
- int32_t numCounters = counters->GetSize();
- int32_t maxNarrowCounter = 0;
- int32_t wideCounters;
- do {
-#undef max
- int32_t minCounter = FXSYS_IntMax;
- for (int32_t i = 0; i < numCounters; i++) {
- int32_t counter = (*counters)[i];
- if (counter < minCounter && counter > maxNarrowCounter) {
- minCounter = counter;
- }
- }
- maxNarrowCounter = minCounter;
- wideCounters = 0;
- int32_t totalWideCountersWidth = 0;
- int32_t pattern = 0;
- for (int32_t j = 0; j < numCounters; j++) {
- int32_t counter = (*counters)[j];
- if ((*counters)[j] > maxNarrowCounter) {
- pattern |= 1 << (numCounters - 1 - j);
- wideCounters++;
- totalWideCountersWidth += counter;
- }
- }
- if (wideCounters == 3) {
- for (int32_t k = 0; k < numCounters && wideCounters > 0; k++) {
- int32_t counter = (*counters)[k];
- if ((*counters)[k] > maxNarrowCounter) {
- wideCounters--;
- if ((counter << 1) >= totalWideCountersWidth) {
- return -1;
- }
- }
- }
- return pattern;
- }
- } while (wideCounters > 3);
- return -1;
-}
-FX_CHAR CBC_OnedCode39Reader::PatternToChar(int32_t pattern, int32_t& e) {
- for (int32_t i = 0; i < 44; i++) {
- if (CHARACTER_ENCODINGS[i] == pattern) {
- return (ALPHABET_STRING)[i];
- }
- }
- e = BCExceptionNotFound;
- return 0;
-}
-CFX_ByteString CBC_OnedCode39Reader::DecodeExtended(CFX_ByteString& encoded,
- int32_t& e) {
- int32_t length = encoded.GetLength();
- CFX_ByteString decoded;
- FX_CHAR c, next;
- for (int32_t i = 0; i < length; i++) {
- c = encoded[i];
- if (c == '+' || c == '$' || c == '%' || c == '/') {
- next = encoded[i + 1];
- FX_CHAR decodedChar = '\0';
- switch (c) {
- case '+':
- if (next >= 'A' && next <= 'Z') {
- decodedChar = (FX_CHAR)(next + 32);
- } else {
- e = BCExceptionFormatException;
- return "";
- }
- break;
- case '$':
- if (next >= 'A' && next <= 'Z') {
- decodedChar = (FX_CHAR)(next - 64);
- } else {
- e = BCExceptionFormatException;
- return "";
- }
- break;
- case '%':
- if (next >= 'A' && next <= 'E') {
- decodedChar = (FX_CHAR)(next - 38);
- } else if (next >= 'F' && next <= 'J') {
- decodedChar = (FX_CHAR)(next - 11);
- } else if (next >= 'K' && next <= 'O' && next != 'M' && next != 'N') {
- decodedChar = (FX_CHAR)(next + 16);
- } else if (next >= 'P' && next <= 'S') {
- decodedChar = (FX_CHAR)(next + 43);
- } else if (next == 'U') {
- decodedChar = (FX_CHAR)0;
- } else if (next == 'V') {
- decodedChar = (FX_CHAR)64;
- } else if (next == 'W') {
- decodedChar = (FX_CHAR)96;
- } else if (next == 'T' || next == 'X' || next == 'Y' || next == 'Z') {
- decodedChar = (FX_CHAR)127;
- } else {
- e = BCExceptionFormatException;
- return "";
- }
- break;
- case '/':
- if (next >= 'A' && next <= 'O') {
- decodedChar = (FX_CHAR)(next - 32);
- } else if (next == 'Z') {
- decodedChar = ':';
- } else {
- e = BCExceptionFormatException;
- return "";
- }
- break;
- }
- decoded += decodedChar;
- i++;
- } else {
- decoded += c;
- }
- }
- return decoded;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com +// Original code is licensed as follows: +/* + * Copyright 2008 ZXing authors + * + * 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. + */ + +#include <algorithm> + +#include "xfa/src/fxbarcode/barcode.h" +#include "xfa/src/fxbarcode/BC_Reader.h" +#include "xfa/src/fxbarcode/common/BC_CommonBitArray.h" +#include "BC_OneDReader.h" +#include "BC_OnedCode39Reader.h" +const FX_CHAR* CBC_OnedCode39Reader::ALPHABET_STRING = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"; +const FX_CHAR* CBC_OnedCode39Reader::CHECKSUM_STRING = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%"; +const int32_t CBC_OnedCode39Reader::CHARACTER_ENCODINGS[44] = { + 0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, + 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, + 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, + 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, + 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A}; +const int32_t CBC_OnedCode39Reader::ASTERISK_ENCODING = 0x094; +CBC_OnedCode39Reader::CBC_OnedCode39Reader() + : m_usingCheckDigit(FALSE), m_extendedMode(FALSE) { +} +CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit) + : m_usingCheckDigit(usingCheckDigit), m_extendedMode(FALSE) { +} +CBC_OnedCode39Reader::CBC_OnedCode39Reader(FX_BOOL usingCheckDigit, + FX_BOOL extendedMode) + : m_usingCheckDigit(usingCheckDigit), m_extendedMode(extendedMode) { +} +CBC_OnedCode39Reader::~CBC_OnedCode39Reader() {} +CFX_ByteString CBC_OnedCode39Reader::DecodeRow(int32_t rowNumber, + CBC_CommonBitArray* row, + int32_t hints, + int32_t& e) { + CFX_Int32Array* start = FindAsteriskPattern(row, e); + BC_EXCEPTION_CHECK_ReturnValue(e, ""); + int32_t nextStart = (*start)[1]; + if (start != NULL) { + delete start; + start = NULL; + } + int32_t end = row->GetSize(); + while (nextStart < end && !row->Get(nextStart)) { + nextStart++; + } + CFX_ByteString result; + CFX_Int32Array counters; + counters.SetSize(9); + FX_CHAR decodedChar; + int32_t lastStart; + do { + RecordPattern(row, nextStart, &counters, e); + BC_EXCEPTION_CHECK_ReturnValue(e, ""); + int32_t pattern = ToNarrowWidePattern(&counters); + if (pattern < 0) { + e = BCExceptionNotFound; + return ""; + } + decodedChar = PatternToChar(pattern, e); + BC_EXCEPTION_CHECK_ReturnValue(e, ""); + result += decodedChar; + lastStart = nextStart; + for (int32_t i = 0; i < counters.GetSize(); i++) { + nextStart += counters[i]; + } + while (nextStart < end && !row->Get(nextStart)) { + nextStart++; + } + } while (decodedChar != '*'); + result = result.Mid(0, result.GetLength() - 1); + int32_t lastPatternSize = 0; + for (int32_t j = 0; j < counters.GetSize(); j++) { + lastPatternSize += counters[j]; + } + if (m_usingCheckDigit) { + int32_t max = result.GetLength() - 1; + int32_t total = 0; + int32_t len = (int32_t)strlen(ALPHABET_STRING); + for (int32_t k = 0; k < max; k++) { + for (int32_t j = 0; j < len; j++) + if (ALPHABET_STRING[j] == result[k]) { + total += j; + } + } + if (result[max] != (ALPHABET_STRING)[total % 43]) { + e = BCExceptionChecksumException; + return ""; + } + result = result.Mid(0, result.GetLength() - 1); + } + if (result.GetLength() == 0) { + e = BCExceptionNotFound; + return ""; + } + if (m_extendedMode) { + CFX_ByteString bytestr = DecodeExtended(result, e); + BC_EXCEPTION_CHECK_ReturnValue(e, ""); + return bytestr; + } else { + return result; + } +} +CFX_Int32Array* CBC_OnedCode39Reader::FindAsteriskPattern( + CBC_CommonBitArray* row, + int32_t& e) { + int32_t width = row->GetSize(); + int32_t rowOffset = 0; + while (rowOffset < width) { + if (row->Get(rowOffset)) { + break; + } + rowOffset++; + } + int32_t counterPosition = 0; + CFX_Int32Array counters; + counters.SetSize(9); + int32_t patternStart = rowOffset; + FX_BOOL isWhite = FALSE; + int32_t patternLength = counters.GetSize(); + for (int32_t i = rowOffset; i < width; i++) { + FX_BOOL pixel = row->Get(i); + if (pixel ^ isWhite) { + counters[counterPosition]++; + } else { + if (counterPosition == patternLength - 1) { + if (ToNarrowWidePattern(&counters) == ASTERISK_ENCODING) { + FX_BOOL bT1 = + row->IsRange(std::max(0, patternStart - (i - patternStart) / 2), + patternStart, FALSE, e); + BC_EXCEPTION_CHECK_ReturnValue(e, NULL); + if (bT1) { + CFX_Int32Array* result = new CFX_Int32Array; + result->SetSize(2); + (*result)[0] = patternStart; + (*result)[1] = i; + return result; + } + } + patternStart += counters[0] + counters[1]; + for (int32_t y = 2; y < patternLength; y++) { + counters[y - 2] = counters[y]; + } + counters[patternLength - 2] = 0; + counters[patternLength - 1] = 0; + counterPosition--; + } else { + counterPosition++; + } + counters[counterPosition] = 1; + isWhite = !isWhite; + } + } + e = BCExceptionNotFound; + return NULL; +} +int32_t CBC_OnedCode39Reader::ToNarrowWidePattern(CFX_Int32Array* counters) { + int32_t numCounters = counters->GetSize(); + int32_t maxNarrowCounter = 0; + int32_t wideCounters; + do { +#undef max + int32_t minCounter = FXSYS_IntMax; + for (int32_t i = 0; i < numCounters; i++) { + int32_t counter = (*counters)[i]; + if (counter < minCounter && counter > maxNarrowCounter) { + minCounter = counter; + } + } + maxNarrowCounter = minCounter; + wideCounters = 0; + int32_t totalWideCountersWidth = 0; + int32_t pattern = 0; + for (int32_t j = 0; j < numCounters; j++) { + int32_t counter = (*counters)[j]; + if ((*counters)[j] > maxNarrowCounter) { + pattern |= 1 << (numCounters - 1 - j); + wideCounters++; + totalWideCountersWidth += counter; + } + } + if (wideCounters == 3) { + for (int32_t k = 0; k < numCounters && wideCounters > 0; k++) { + int32_t counter = (*counters)[k]; + if ((*counters)[k] > maxNarrowCounter) { + wideCounters--; + if ((counter << 1) >= totalWideCountersWidth) { + return -1; + } + } + } + return pattern; + } + } while (wideCounters > 3); + return -1; +} +FX_CHAR CBC_OnedCode39Reader::PatternToChar(int32_t pattern, int32_t& e) { + for (int32_t i = 0; i < 44; i++) { + if (CHARACTER_ENCODINGS[i] == pattern) { + return (ALPHABET_STRING)[i]; + } + } + e = BCExceptionNotFound; + return 0; +} +CFX_ByteString CBC_OnedCode39Reader::DecodeExtended(CFX_ByteString& encoded, + int32_t& e) { + int32_t length = encoded.GetLength(); + CFX_ByteString decoded; + FX_CHAR c, next; + for (int32_t i = 0; i < length; i++) { + c = encoded[i]; + if (c == '+' || c == '$' || c == '%' || c == '/') { + next = encoded[i + 1]; + FX_CHAR decodedChar = '\0'; + switch (c) { + case '+': + if (next >= 'A' && next <= 'Z') { + decodedChar = (FX_CHAR)(next + 32); + } else { + e = BCExceptionFormatException; + return ""; + } + break; + case '$': + if (next >= 'A' && next <= 'Z') { + decodedChar = (FX_CHAR)(next - 64); + } else { + e = BCExceptionFormatException; + return ""; + } + break; + case '%': + if (next >= 'A' && next <= 'E') { + decodedChar = (FX_CHAR)(next - 38); + } else if (next >= 'F' && next <= 'J') { + decodedChar = (FX_CHAR)(next - 11); + } else if (next >= 'K' && next <= 'O' && next != 'M' && next != 'N') { + decodedChar = (FX_CHAR)(next + 16); + } else if (next >= 'P' && next <= 'S') { + decodedChar = (FX_CHAR)(next + 43); + } else if (next == 'U') { + decodedChar = (FX_CHAR)0; + } else if (next == 'V') { + decodedChar = (FX_CHAR)64; + } else if (next == 'W') { + decodedChar = (FX_CHAR)96; + } else if (next == 'T' || next == 'X' || next == 'Y' || next == 'Z') { + decodedChar = (FX_CHAR)127; + } else { + e = BCExceptionFormatException; + return ""; + } + break; + case '/': + if (next >= 'A' && next <= 'O') { + decodedChar = (FX_CHAR)(next - 32); + } else if (next == 'Z') { + decodedChar = ':'; + } else { + e = BCExceptionFormatException; + return ""; + } + break; + } + decoded += decodedChar; + i++; + } else { + decoded += c; + } + } + return decoded; +} |