You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
3.7 KiB
98 lines
3.7 KiB
// 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/fxbarcode/BC_Dimension.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_ASCIIEncoder.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_Encoder.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_EncoderContext.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_HighLevelEncoder.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_SymbolInfo.h" |
|
#include "xfa/fxbarcode/datamatrix/BC_SymbolShapeHint.h" |
|
|
|
CBC_ASCIIEncoder::CBC_ASCIIEncoder() {} |
|
CBC_ASCIIEncoder::~CBC_ASCIIEncoder() {} |
|
int32_t CBC_ASCIIEncoder::getEncodingMode() { |
|
return ASCII_ENCODATION; |
|
} |
|
void CBC_ASCIIEncoder::Encode(CBC_EncoderContext& context, int32_t& e) { |
|
int32_t 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(); |
|
int32_t 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, |
|
int32_t& e) { |
|
if (CBC_HighLevelEncoder::isDigit(digit1) && |
|
CBC_HighLevelEncoder::isDigit(digit2)) { |
|
int32_t num = (digit1 - 48) * 10 + (digit2 - 48); |
|
return (FX_WCHAR)(num + 130); |
|
} |
|
e = BCExceptionIllegalArgumentNotGigits; |
|
return 0; |
|
}
|
|
|