Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_C40Encoder.cpp

Index: xfa/src/fxbarcode/src/BC_C40Encoder.cpp
diff --git a/xfa/src/fxbarcode/src/BC_C40Encoder.cpp b/xfa/src/fxbarcode/src/BC_C40Encoder.cpp
deleted file mode 100644
index 685f1d80fd904f5edc213f529e431b2696bdd340..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_C40Encoder.cpp
+++ /dev/null
@@ -1,198 +0,0 @@
-// 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 "barcode.h"
-#include "include/BC_Encoder.h"
-#include "include/BC_Dimension.h"
-#include "include/BC_CommonBitMatrix.h"
-#include "include/BC_SymbolShapeHint.h"
-#include "include/BC_SymbolInfo.h"
-#include "include/BC_EncoderContext.h"
-#include "include/BC_HighLevelEncoder.h"
-#include "include/BC_C40Encoder.h"
-CBC_C40Encoder::CBC_C40Encoder()
-{
-}
-CBC_C40Encoder::~CBC_C40Encoder()
-{
-}
-FX_INT32 CBC_C40Encoder::getEncodingMode()
-{
-    return C40_ENCODATION;
-}
-void CBC_C40Encoder::Encode(CBC_EncoderContext &context, FX_INT32 &e)
-{
-    CFX_WideString buffer;
-    while (context.hasMoreCharacters()) {
-        FX_WCHAR c = context.getCurrentChar();
-        context.m_pos++;
-        FX_INT32 lastCharSize = encodeChar(c, buffer, e);
-        if (e != BCExceptionNO) {
-            return;
-        }
-        FX_INT32 unwritten = (buffer.GetLength() / 3) * 2;
-        FX_INT32 curCodewordCount = context.getCodewordCount() + unwritten;
-        context.updateSymbolInfo(curCodewordCount, e);
-        if (e != BCExceptionNO) {
-            return;
-        }
-        FX_INT32 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;
-        }
-        FX_INT32 count = buffer.GetLength();
-        if ((count % 3) == 0) {
-            FX_INT32 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, FX_INT32 &e)
-{
-    FX_INT32 unwritten = (buffer.GetLength() / 3) * 2;
-    FX_INT32 rest = buffer.GetLength() % 3;
-    FX_INT32 curCodewordCount = context.getCodewordCount() + unwritten;
-    context.updateSymbolInfo(curCodewordCount, e);
-    if (e != BCExceptionNO) {
-        return;
-    }
-    FX_INT32 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);
-}
-FX_INT32 CBC_C40Encoder::encodeChar(FX_WCHAR c, CFX_WideString &sb, FX_INT32 &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 >= '\0') && (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;
-        FX_INT32 len = 2;
-        len += encodeChar((c - 128), sb, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e,  0);
-        return len;
-    } else {
-        e = BCExceptionIllegalArgument;
-        return 0;
-    }
-}
-FX_INT32 CBC_C40Encoder::backtrackOneCharacter(CBC_EncoderContext &context, CFX_WideString &buffer, CFX_WideString &removed, FX_INT32 lastCharSize, FX_INT32 &e)
-{
-    FX_INT32 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, FX_INT32 startPos)
-{
-    FX_WCHAR c1 = sb.GetAt(startPos);
-    FX_WCHAR c2 = sb.GetAt(startPos + 1);
-    FX_WCHAR c3 = sb.GetAt(startPos + 2);
-    FX_INT32 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;
-}