Move xfa/src up to xfa/.

xfa/src/fxbarcode/oned/BC_OnedCode39Reader.cpp

-// 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/BC_Reader.h"
-#include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
-#include "xfa/src/fxbarcode/oned/BC_OneDReader.h"
-#include "xfa/src/fxbarcode/oned/BC_OnedCode39Reader.h"
-#include "xfa/src/fxbarcode/utils.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];
-  delete start;
-  int32_t end = row->GetSize();
-  while (nextStart < end && !row->Get(nextStart)) {
-    nextStart++;
-  }
-  CFX_ByteString result;
-  CFX_Int32Array counters;
-  counters.SetSize(9);
-  FX_CHAR decodedChar;
-  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;
-    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;
-}