1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 // Original code is licensed as follows: 7 /* 8 * Copyright 2006-2007 Jeremias Maerki. 9 * 10 * Licensed under the Apache License, Version 2.0 (the "License"); 11 * you may not use this file except in compliance with the License. 12 * You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, software 17 * distributed under the License is distributed on an "AS IS" BASIS, 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 19 * See the License for the specific language governing permissions and 20 * limitations under the License. 21 */ 22 23 #include "xfa/src/fxbarcode/barcode.h" 24 #include "xfa/src/fxbarcode/BC_Dimension.h" 25 #include "xfa/src/fxbarcode/BC_UtilCodingConvert.h" 26 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" 27 #include "BC_Encoder.h" 28 #include "BC_SymbolShapeHint.h" 29 #include "BC_SymbolInfo.h" 30 #include "BC_EncoderContext.h" 31 CBC_EncoderContext::CBC_EncoderContext(const CFX_WideString msg, 32 CFX_WideString ecLevel, 33 int32_t& e) { 34 CFX_ByteString dststr; 35 CBC_UtilCodingConvert::UnicodeToUTF8(msg, dststr); 36 CFX_WideString sb; 37 int32_t c = dststr.GetLength(); 38 for (int32_t i = 0; i < c; i++) { 39 FX_WCHAR ch = (FX_WCHAR)(dststr.GetAt(i) & 0xff); 40 if (ch == '?' && dststr.GetAt(i) != '?') { 41 e = BCExceptionCharactersOutsideISO88591Encoding; 42 } 43 sb += ch; 44 } 45 m_msg = sb; 46 m_shape = FORCE_NONE; 47 m_newEncoding = -1; 48 m_pos = 0; 49 m_symbolInfo = NULL; 50 m_skipAtEnd = 0; 51 m_maxSize = NULL; 52 m_minSize = NULL; 53 } 54 CBC_EncoderContext::~CBC_EncoderContext() {} 55 void CBC_EncoderContext::setSymbolShape(SymbolShapeHint shape) { 56 m_shape = shape; 57 } 58 void CBC_EncoderContext::setSizeConstraints(CBC_Dimension* minSize, 59 CBC_Dimension* maxSize) { 60 m_maxSize = maxSize; 61 m_minSize = minSize; 62 } 63 CFX_WideString CBC_EncoderContext::getMessage() { 64 return m_msg; 65 } 66 void CBC_EncoderContext::setSkipAtEnd(int32_t count) { 67 m_skipAtEnd = count; 68 } 69 FX_WCHAR CBC_EncoderContext::getCurrentChar() { 70 return m_msg.GetAt(m_pos); 71 } 72 FX_WCHAR CBC_EncoderContext::getCurrent() { 73 return m_msg.GetAt(m_pos); 74 } 75 void CBC_EncoderContext::writeCodewords(CFX_WideString codewords) { 76 m_codewords += codewords; 77 } 78 void CBC_EncoderContext::writeCodeword(FX_WCHAR codeword) { 79 m_codewords += codeword; 80 } 81 int32_t CBC_EncoderContext::getCodewordCount() { 82 return m_codewords.GetLength(); 83 } 84 void CBC_EncoderContext::signalEncoderChange(int32_t encoding) { 85 m_newEncoding = encoding; 86 } 87 void CBC_EncoderContext::resetEncoderSignal() { 88 m_newEncoding = -1; 89 } 90 FX_BOOL CBC_EncoderContext::hasMoreCharacters() { 91 return m_pos < getTotalMessageCharCount(); 92 } 93 int32_t CBC_EncoderContext::getRemainingCharacters() { 94 return getTotalMessageCharCount() - m_pos; 95 } 96 void CBC_EncoderContext::updateSymbolInfo(int32_t& e) { 97 updateSymbolInfo(getCodewordCount(), e); 98 } 99 void CBC_EncoderContext::updateSymbolInfo(int32_t len, int32_t& e) { 100 if (m_symbolInfo == NULL || len > m_symbolInfo->m_dataCapacity) { 101 m_symbolInfo = 102 CBC_SymbolInfo::lookup(len, m_shape, m_minSize, m_maxSize, true, e); 103 BC_EXCEPTION_CHECK_ReturnVoid(e); 104 } 105 } 106 void CBC_EncoderContext::resetSymbolInfo() { 107 m_shape = FORCE_NONE; 108 } 109 int32_t CBC_EncoderContext::getTotalMessageCharCount() { 110 return m_msg.GetLength() - m_skipAtEnd; 111 } 112
