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103 lines
3.3 KiB
103 lines
3.3 KiB
// 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 "fxbarcode/datamatrix/BC_X12Encoder.h"
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#include "core/fxcrt/fx_extension.h"
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#include "fxbarcode/common/BC_CommonBitMatrix.h"
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#include "fxbarcode/datamatrix/BC_C40Encoder.h"
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#include "fxbarcode/datamatrix/BC_Encoder.h"
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#include "fxbarcode/datamatrix/BC_EncoderContext.h"
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#include "fxbarcode/datamatrix/BC_HighLevelEncoder.h"
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#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
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CBC_X12Encoder::CBC_X12Encoder() = default;
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CBC_X12Encoder::~CBC_X12Encoder() = default;
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CBC_HighLevelEncoder::Encoding CBC_X12Encoder::GetEncodingMode() {
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return CBC_HighLevelEncoder::Encoding::X12;
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}
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bool CBC_X12Encoder::Encode(CBC_EncoderContext* context) {
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WideString buffer;
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while (context->hasMoreCharacters()) {
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wchar_t c = context->getCurrentChar();
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context->m_pos++;
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if (EncodeChar(c, &buffer) <= 0)
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return false;
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size_t count = buffer.GetLength();
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if ((count % 3) == 0) {
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WriteNextTriplet(context, &buffer);
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CBC_HighLevelEncoder::Encoding newMode =
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CBC_HighLevelEncoder::LookAheadTest(context->m_msg, context->m_pos,
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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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return HandleEOD(context, &buffer);
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}
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bool CBC_X12Encoder::HandleEOD(CBC_EncoderContext* context,
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WideString* buffer) {
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if (!context->UpdateSymbolInfo())
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return false;
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int32_t available =
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context->m_symbolInfo->dataCapacity() - context->getCodewordCount();
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size_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(CBC_HighLevelEncoder::Encoding::ASCII);
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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(CBC_HighLevelEncoder::Encoding::ASCII);
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}
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return true;
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}
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int32_t CBC_X12Encoder::EncodeChar(wchar_t c, WideString* sb) {
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if (c == '\r')
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*sb += (wchar_t)'\0';
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else if (c == '*')
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*sb += (wchar_t)'\1';
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else if (c == '>')
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*sb += (wchar_t)'\2';
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else if (c == ' ')
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*sb += (wchar_t)'\3';
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else if (FXSYS_IsDecimalDigit(c))
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*sb += (wchar_t)(c - 48 + 4);
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else if (c >= 'A' && c <= 'Z')
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*sb += (wchar_t)(c - 65 + 14);
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else
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return 0;
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return 1;
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}
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