From e778668fe92b8c60e0537ee48f79d5af6c1a2f1e Mon Sep 17 00:00:00 2001 From: Dan Sinclair Date: Wed, 29 Mar 2017 15:18:41 -0400 Subject: Move xfa/fxbarcode fxbarcode/ Nothing in fxbarcode/ depends on XFA code. This CL moves xfa/fxbarcode to be fxbarcode/ and creates a static_library for fxbarcode which is depend on by the xfa library. Change-Id: I0b708737b07efb94b769a5238d92af92bc62880d Reviewed-on: https://pdfium-review.googlesource.com/3291 Reviewed-by: Tom Sepez Commit-Queue: dsinclair --- fxbarcode/datamatrix/BC_EdifactEncoder.cpp | 152 +++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 fxbarcode/datamatrix/BC_EdifactEncoder.cpp (limited to 'fxbarcode/datamatrix/BC_EdifactEncoder.cpp') diff --git a/fxbarcode/datamatrix/BC_EdifactEncoder.cpp b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp new file mode 100644 index 0000000000..61eea93d33 --- /dev/null +++ b/fxbarcode/datamatrix/BC_EdifactEncoder.cpp @@ -0,0 +1,152 @@ +// 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 "fxbarcode/BC_Dimension.h" +#include "fxbarcode/common/BC_CommonBitMatrix.h" +#include "fxbarcode/datamatrix/BC_EdifactEncoder.h" +#include "fxbarcode/datamatrix/BC_Encoder.h" +#include "fxbarcode/datamatrix/BC_EncoderContext.h" +#include "fxbarcode/datamatrix/BC_HighLevelEncoder.h" +#include "fxbarcode/datamatrix/BC_SymbolInfo.h" +#include "fxbarcode/datamatrix/BC_SymbolShapeHint.h" + +CBC_EdifactEncoder::CBC_EdifactEncoder() {} +CBC_EdifactEncoder::~CBC_EdifactEncoder() {} +int32_t CBC_EdifactEncoder::getEncodingMode() { + return EDIFACT_ENCODATION; +} +void CBC_EdifactEncoder::Encode(CBC_EncoderContext& context, int32_t& e) { + CFX_WideString buffer; + while (context.hasMoreCharacters()) { + wchar_t c = context.getCurrentChar(); + encodeChar(c, buffer, e); + if (e != BCExceptionNO) { + return; + } + context.m_pos++; + int32_t count = buffer.GetLength(); + if (count >= 4) { + context.writeCodewords(encodeToCodewords(buffer, 0, e)); + if (e != BCExceptionNO) { + return; + } + buffer.Delete(0, 4); + int32_t newMode = CBC_HighLevelEncoder::lookAheadTest( + context.m_msg, context.m_pos, getEncodingMode()); + if (newMode != getEncodingMode()) { + context.signalEncoderChange(ASCII_ENCODATION); + break; + } + } + } + buffer += (wchar_t)31; + handleEOD(context, buffer, e); +} +void CBC_EdifactEncoder::handleEOD(CBC_EncoderContext& context, + CFX_WideString buffer, + int32_t& e) { + int32_t count = buffer.GetLength(); + if (count == 0) { + return; + } + if (count == 1) { + context.updateSymbolInfo(e); + if (e != BCExceptionNO) { + return; + } + int32_t available = + context.m_symbolInfo->m_dataCapacity - context.getCodewordCount(); + int32_t remaining = context.getRemainingCharacters(); + if (remaining == 0 && available <= 2) { + return; + } + } + if (count > 4) { + e = BCExceptionIllegalStateCountMustNotExceed4; + return; + } + int32_t restChars = count - 1; + CFX_WideString encoded = encodeToCodewords(buffer, 0, e); + if (e != BCExceptionNO) { + return; + } + bool endOfSymbolReached = !context.hasMoreCharacters(); + bool restInAscii = endOfSymbolReached && restChars <= 2; + if (restChars <= 2) { + context.updateSymbolInfo(context.getCodewordCount() + restChars, e); + if (e != BCExceptionNO) { + return; + } + int32_t available = + context.m_symbolInfo->m_dataCapacity - context.getCodewordCount(); + if (available >= 3) { + restInAscii = false; + context.updateSymbolInfo(context.getCodewordCount() + encoded.GetLength(), + e); + if (e != BCExceptionNO) { + return; + } + } + } + if (restInAscii) { + context.resetSymbolInfo(); + context.m_pos -= restChars; + } else { + context.writeCodewords(encoded); + } + context.signalEncoderChange(ASCII_ENCODATION); +} +void CBC_EdifactEncoder::encodeChar(wchar_t c, CFX_WideString& sb, int32_t& e) { + if (c >= ' ' && c <= '?') { + sb += c; + } else if (c >= '@' && c <= '^') { + sb += (wchar_t)(c - 64); + } else { + CBC_HighLevelEncoder::illegalCharacter(c, e); + } +} +CFX_WideString CBC_EdifactEncoder::encodeToCodewords(CFX_WideString sb, + int32_t startPos, + int32_t& e) { + int32_t len = sb.GetLength() - startPos; + if (len == 0) { + e = BCExceptionNoContents; + return CFX_WideString(); + } + wchar_t c1 = sb.GetAt(startPos); + wchar_t c2 = len >= 2 ? sb.GetAt(startPos + 1) : 0; + wchar_t c3 = len >= 3 ? sb.GetAt(startPos + 2) : 0; + wchar_t c4 = len >= 4 ? sb.GetAt(startPos + 3) : 0; + int32_t v = (c1 << 18) + (c2 << 12) + (c3 << 6) + c4; + wchar_t cw1 = (wchar_t)((v >> 16) & 255); + wchar_t cw2 = (wchar_t)((v >> 8) & 255); + wchar_t cw3 = (wchar_t)(v & 255); + CFX_WideString res; + res += cw1; + if (len >= 2) { + res += cw2; + } + if (len >= 3) { + res += cw3; + } + return res; +} -- cgit v1.2.3