Move xfa/src up to xfa/.

xfa/src/fxbarcode/datamatrix/BC_C40Encoder.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 2006-2007 Jeremias Maerki.
- *
- * 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 "xfa/src/fxbarcode/BC_Dimension.h"
-#include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_C40Encoder.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_Encoder.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_EncoderContext.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_HighLevelEncoder.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_SymbolInfo.h"
-#include "xfa/src/fxbarcode/datamatrix/BC_SymbolShapeHint.h"
-
-CBC_C40Encoder::CBC_C40Encoder() {}
-CBC_C40Encoder::~CBC_C40Encoder() {}
-int32_t CBC_C40Encoder::getEncodingMode() {
-  return C40_ENCODATION;
-}
-void CBC_C40Encoder::Encode(CBC_EncoderContext& context, int32_t& e) {
-  CFX_WideString buffer;
-  while (context.hasMoreCharacters()) {
-    FX_WCHAR c = context.getCurrentChar();
-    context.m_pos++;
-    int32_t lastCharSize = encodeChar(c, buffer, e);
-    if (e != BCExceptionNO) {
-      return;
-    }
-    int32_t unwritten = (buffer.GetLength() / 3) * 2;
-    int32_t curCodewordCount = context.getCodewordCount() + unwritten;
-    context.updateSymbolInfo(curCodewordCount, e);
-    if (e != BCExceptionNO) {
-      return;
-    }
-    int32_t available = context.m_symbolInfo->m_dataCapacity - curCodewordCount;
-    if (!context.hasMoreCharacters()) {
-      CFX_WideString removed;
-      if ((buffer.GetLength() % 3) == 2) {
-        if (available < 2 || available > 2) {
-          lastCharSize =
-              backtrackOneCharacter(context, buffer, removed, lastCharSize, e);
-          if (e != BCExceptionNO) {
-            return;
-          }
-        }
-      }
-      while ((buffer.GetLength() % 3) == 1 &&
-             ((lastCharSize <= 3 && available != 1) || lastCharSize > 3)) {
-        lastCharSize =
-            backtrackOneCharacter(context, buffer, removed, lastCharSize, e);
-        if (e != BCExceptionNO) {
-          return;
-        }
-      }
-      break;
-    }
-    int32_t count = buffer.GetLength();
-    if ((count % 3) == 0) {
-      int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(
-          context.m_msg, context.m_pos, getEncodingMode());
-      if (newMode != getEncodingMode()) {
-        context.signalEncoderChange(newMode);
-        break;
-      }
-    }
-  }
-  handleEOD(context, buffer, e);
-}
-void CBC_C40Encoder::writeNextTriplet(CBC_EncoderContext& context,
-                                      CFX_WideString& buffer) {
-  context.writeCodewords(encodeToCodewords(buffer, 0));
-  buffer.Delete(0, 3);
-}
-void CBC_C40Encoder::handleEOD(CBC_EncoderContext& context,
-                               CFX_WideString& buffer,
-                               int32_t& e) {
-  int32_t unwritten = (buffer.GetLength() / 3) * 2;
-  int32_t rest = buffer.GetLength() % 3;
-  int32_t curCodewordCount = context.getCodewordCount() + unwritten;
-  context.updateSymbolInfo(curCodewordCount, e);
-  if (e != BCExceptionNO) {
-    return;
-  }
-  int32_t available = context.m_symbolInfo->m_dataCapacity - curCodewordCount;
-  if (rest == 2) {
-    buffer += (FX_WCHAR)'\0';
-    while (buffer.GetLength() >= 3) {
-      writeNextTriplet(context, buffer);
-    }
-    if (context.hasMoreCharacters()) {
-      context.writeCodeword(CBC_HighLevelEncoder::C40_UNLATCH);
-    }
-  } else if (available == 1 && rest == 1) {
-    while (buffer.GetLength() >= 3) {
-      writeNextTriplet(context, buffer);
-    }
-    if (context.hasMoreCharacters()) {
-      context.writeCodeword(CBC_HighLevelEncoder::C40_UNLATCH);
-    }
-    context.m_pos--;
-  } else if (rest == 0) {
-    while (buffer.GetLength() >= 3) {
-      writeNextTriplet(context, buffer);
-    }
-    if (available > 0 || context.hasMoreCharacters()) {
-      context.writeCodeword(CBC_HighLevelEncoder::C40_UNLATCH);
-    }
-  } else {
-    e = BCExceptionIllegalStateUnexpectedCase;
-    return;
-  }
-  context.signalEncoderChange(ASCII_ENCODATION);
-}
-int32_t CBC_C40Encoder::encodeChar(FX_WCHAR c, CFX_WideString& sb, int32_t& e) {
-  if (c == ' ') {
-    sb += (FX_WCHAR)'\3';
-    return 1;
-  } else if ((c >= '0') && (c <= '9')) {
-    sb += (FX_WCHAR)(c - 48 + 4);
-    return 1;
-  } else if ((c >= 'A') && (c <= 'Z')) {
-    sb += (FX_WCHAR)(c - 65 + 14);
-    return 1;
-  } else if (c <= 0x1f) {
-    sb += (FX_WCHAR)'\0';
-    sb += c;
-    return 2;
-  } else if ((c >= '!') && (c <= '/')) {
-    sb += (FX_WCHAR)'\1';
-    sb += (FX_WCHAR)(c - 33);
-    return 2;
-  } else if ((c >= ':') && (c <= '@')) {
-    sb += (FX_WCHAR)'\1';
-    sb += (FX_WCHAR)(c - 58 + 15);
-    return 2;
-  } else if ((c >= '[') && (c <= '_')) {
-    sb += (FX_WCHAR)'\1';
-    sb += (FX_WCHAR)(c - 91 + 22);
-    return 2;
-  } else if ((c >= 60) && (c <= 0x7f)) {
-    sb += (FX_WCHAR)'\2';
-    sb += (FX_WCHAR)(c - 96);
-    return 2;
-  } else if (c >= 80) {
-    sb += (FX_WCHAR)'\1';
-    sb += (FX_WCHAR)0x001e;
-    int32_t len = 2;
-    len += encodeChar((c - 128), sb, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    return len;
-  } else {
-    e = BCExceptionIllegalArgument;
-    return 0;
-  }
-}
-int32_t CBC_C40Encoder::backtrackOneCharacter(CBC_EncoderContext& context,
-                                              CFX_WideString& buffer,
-                                              CFX_WideString& removed,
-                                              int32_t lastCharSize,
-                                              int32_t& e) {
-  int32_t count = buffer.GetLength();
-  buffer.Delete(count - lastCharSize, count);
-  context.m_pos--;
-  FX_WCHAR c = context.getCurrentChar();
-  lastCharSize = encodeChar(c, removed, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-  context.resetSymbolInfo();
-  return lastCharSize;
-}
-CFX_WideString CBC_C40Encoder::encodeToCodewords(CFX_WideString sb,
-                                                 int32_t startPos) {
-  FX_WCHAR c1 = sb.GetAt(startPos);
-  FX_WCHAR c2 = sb.GetAt(startPos + 1);
-  FX_WCHAR c3 = sb.GetAt(startPos + 2);
-  int32_t v = (1600 * c1) + (40 * c2) + c3 + 1;
-  FX_WCHAR cw1 = (FX_WCHAR)(v / 256);
-  FX_WCHAR cw2 = (FX_WCHAR)(v % 256);
-  CFX_WideString b1(cw1);
-  CFX_WideString b2(cw2);
-  return b1 + b2;
-}