// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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// Original code is licensed as follows:
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/*
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* Copyright 2006-2007 Jeremias Maerki.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "xfa/fxbarcode/BC_Dimension.h"
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#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
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#include "xfa/fxbarcode/datamatrix/BC_C40Encoder.h"
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#include "xfa/fxbarcode/datamatrix/BC_Encoder.h"
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#include "xfa/fxbarcode/datamatrix/BC_EncoderContext.h"
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#include "xfa/fxbarcode/datamatrix/BC_HighLevelEncoder.h"
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#include "xfa/fxbarcode/datamatrix/BC_SymbolInfo.h"
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#include "xfa/fxbarcode/datamatrix/BC_SymbolShapeHint.h"
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#include "xfa/fxbarcode/datamatrix/BC_X12Encoder.h"
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CBC_X12Encoder::CBC_X12Encoder() {}
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CBC_X12Encoder::~CBC_X12Encoder() {}
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int32_t CBC_X12Encoder::getEncodingMode() {
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return X12_ENCODATION;
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}
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void CBC_X12Encoder::Encode(CBC_EncoderContext& context, int32_t& e) {
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CFX_WideString buffer;
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while (context.hasMoreCharacters()) {
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FX_WCHAR c = context.getCurrentChar();
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context.m_pos++;
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encodeChar(c, buffer, e);
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if (e != BCExceptionNO) {
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return;
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}
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int32_t count = buffer.GetLength();
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if ((count % 3) == 0) {
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writeNextTriplet(context, buffer);
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int32_t newMode = CBC_HighLevelEncoder::lookAheadTest(
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context.m_msg, context.m_pos, getEncodingMode());
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if (newMode != getEncodingMode()) {
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context.signalEncoderChange(newMode);
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break;
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}
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}
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}
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handleEOD(context, buffer, e);
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}
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void CBC_X12Encoder::handleEOD(CBC_EncoderContext& context,
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CFX_WideString& buffer,
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int32_t& e) {
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context.updateSymbolInfo(e);
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if (e != BCExceptionNO) {
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return;
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}
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int32_t available =
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context.m_symbolInfo->m_dataCapacity - context.getCodewordCount();
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int32_t count = buffer.GetLength();
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if (count == 2) {
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context.writeCodeword(CBC_HighLevelEncoder::X12_UNLATCH);
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context.m_pos -= 2;
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context.signalEncoderChange(ASCII_ENCODATION);
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} else if (count == 1) {
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context.m_pos--;
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if (available > 1) {
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context.writeCodeword(CBC_HighLevelEncoder::X12_UNLATCH);
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}
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context.signalEncoderChange(ASCII_ENCODATION);
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}
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}
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int32_t CBC_X12Encoder::encodeChar(FX_WCHAR c, CFX_WideString& sb, int32_t& e) {
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if (c == '\r') {
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sb += (FX_WCHAR)'\0';
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} else if (c == '*') {
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sb += (FX_WCHAR)'\1';
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} else if (c == '>') {
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sb += (FX_WCHAR)'\2';
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} else if (c == ' ') {
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sb += (FX_WCHAR)'\3';
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} else if (c >= '0' && c <= '9') {
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sb += (FX_WCHAR)(c - 48 + 4);
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} else if (c >= 'A' && c <= 'Z') {
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sb += (FX_WCHAR)(c - 65 + 14);
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} else {
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CBC_HighLevelEncoder::illegalCharacter(c, e);
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BC_EXCEPTION_CHECK_ReturnValue(e, -1);
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}
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return 1;
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}
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