Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_ASCIIEncoder.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 "barcode.h"
-#include "include/BC_Encoder.h"
-#include "include/BC_Dimension.h"
-#include "include/BC_SymbolShapeHint.h"
-#include "include/BC_SymbolInfo.h"
-#include "include/BC_EncoderContext.h"
-#include "include/BC_HighLevelEncoder.h"
-#include "include/BC_ASCIIEncoder.h"
-CBC_ASCIIEncoder::CBC_ASCIIEncoder()
-{
-}
-CBC_ASCIIEncoder::~CBC_ASCIIEncoder()
-{
-}
-FX_INT32 CBC_ASCIIEncoder::getEncodingMode()
-{
-    return ASCII_ENCODATION;
-}
-void CBC_ASCIIEncoder::Encode(CBC_EncoderContext &context, FX_INT32 &e)
-{
-    FX_INT32 n = CBC_HighLevelEncoder::determineConsecutiveDigitCount(context.m_msg, context.m_pos);
-    if (n >= 2) {
-        FX_WCHAR code = encodeASCIIDigits(context.m_msg.GetAt(context.m_pos), context.m_msg.GetAt(context.m_pos + 1), e);
-        if (e != BCExceptionNO) {
-            return;
-        }
-        context.writeCodeword(code);
-        context.m_pos += 2;
-    } else {
-        FX_WCHAR c = context.getCurrentChar();
-        FX_INT32 newMode = CBC_HighLevelEncoder::lookAheadTest(context.m_msg, context.m_pos, getEncodingMode());
-        if (newMode != getEncodingMode()) {
-            switch (newMode) {
-                case BASE256_ENCODATION:
-                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_BASE256);
-                    context.signalEncoderChange(BASE256_ENCODATION);
-                    return;
-                case C40_ENCODATION:
-                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_C40);
-                    context.signalEncoderChange(C40_ENCODATION);
-                    return;
-                case X12_ENCODATION:
-                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_ANSIX12);
-                    context.signalEncoderChange(X12_ENCODATION);
-                    break;
-                case TEXT_ENCODATION:
-                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_TEXT);
-                    context.signalEncoderChange(TEXT_ENCODATION);
-                    break;
-                case EDIFACT_ENCODATION:
-                    context.writeCodeword(CBC_HighLevelEncoder::LATCH_TO_EDIFACT);
-                    context.signalEncoderChange(EDIFACT_ENCODATION);
-                    break;
-                default:
-                    e = BCExceptionIllegalStateIllegalMode;
-                    return;
-            }
-        } else if (CBC_HighLevelEncoder::isExtendedASCII(c)) {
-            context.writeCodeword(CBC_HighLevelEncoder::UPPER_SHIFT);
-            context.writeCodeword((FX_WCHAR) (c - 128 + 1));
-            context.m_pos++;
-        } else {
-            context.writeCodeword((FX_WCHAR) (c + 1));
-            context.m_pos++;
-        }
-    }
-}
-FX_WCHAR CBC_ASCIIEncoder::encodeASCIIDigits(FX_WCHAR digit1, FX_WCHAR digit2, FX_INT32 &e)
-{
-    if (CBC_HighLevelEncoder::isDigit(digit1) && CBC_HighLevelEncoder::isDigit(digit2)) {
-        FX_INT32 num = (digit1 - 48) * 10 + (digit2 - 48);
-        FX_WCHAR a = (FX_WCHAR) (num + 130);
-        return (FX_WCHAR) (num + 130);
-    }
-    e = BCExceptionIllegalArgumentNotGigits;
-    return 0;
-}