1 // Copyright 2016 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 /* 7 * Copyright 2011 ZXing authors 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); 10 * you may not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22 #include "xfa/fxbarcode/cbc_ean13.h" 23 24 #include "xfa/fxbarcode/oned/BC_OnedEAN13Writer.h" 25 26 CBC_EAN13::CBC_EAN13() : CBC_OneCode(new CBC_OnedEAN13Writer) {} 27 28 CBC_EAN13::~CBC_EAN13() {} 29 30 CFX_WideString CBC_EAN13::Preprocess(const CFX_WideStringC& contents) { 31 CFX_WideString encodeContents = 32 static_cast<CBC_OnedEAN13Writer*>(m_pBCWriter.get()) 33 ->FilterContents(contents); 34 int32_t length = encodeContents.GetLength(); 35 if (length <= 12) { 36 for (int32_t i = 0; i < 12 - length; i++) 37 encodeContents = FX_WCHAR('0') + encodeContents; 38 39 CFX_ByteString byteString = encodeContents.UTF8Encode(); 40 int32_t checksum = static_cast<CBC_OnedEAN13Writer*>(m_pBCWriter.get()) 41 ->CalcChecksum(byteString); 42 byteString += checksum - 0 + '0'; 43 encodeContents = byteString.UTF8Decode(); 44 } 45 if (length > 13) 46 encodeContents = encodeContents.Mid(0, 13); 47 48 return encodeContents; 49 } 50 51 bool CBC_EAN13::Encode(const CFX_WideStringC& contents, 52 bool isDevice, 53 int32_t& e) { 54 if (contents.IsEmpty()) { 55 e = BCExceptionNoContents; 56 return false; 57 } 58 BCFORMAT format = BCFORMAT_EAN_13; 59 int32_t outWidth = 0; 60 int32_t outHeight = 0; 61 CFX_WideString encodeContents = Preprocess(contents); 62 CFX_ByteString byteString = encodeContents.UTF8Encode(); 63 m_renderContents = encodeContents; 64 uint8_t* data = static_cast<CBC_OnedEAN13Writer*>(m_pBCWriter.get()) 65 ->Encode(byteString, format, outWidth, outHeight, e); 66 if (e != BCExceptionNO) 67 return false; 68 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 69 ->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice, e); 70 FX_Free(data); 71 if (e != BCExceptionNO) 72 return false; 73 return true; 74 } 75 76 bool CBC_EAN13::RenderDevice(CFX_RenderDevice* device, 77 const CFX_Matrix* matrix, 78 int32_t& e) { 79 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 80 ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e); 81 if (e != BCExceptionNO) 82 return false; 83 return true; 84 } 85 86 bool CBC_EAN13::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) { 87 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 88 ->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e); 89 if (e != BCExceptionNO) 90 return false; 91 return true; 92 } 93 94 BC_TYPE CBC_EAN13::GetType() { 95 return BC_EAN13; 96 } 97
