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_ean8.h" 23 24 #include "xfa/fxbarcode/oned/BC_OnedEAN8Writer.h" 25 26 CBC_EAN8::CBC_EAN8() : CBC_OneCode(new CBC_OnedEAN8Writer) {} 27 28 CBC_EAN8::~CBC_EAN8() {} 29 30 CFX_WideString CBC_EAN8::Preprocess(const CFX_WideStringC& contents) { 31 CFX_WideString encodeContents = 32 static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get()) 33 ->FilterContents(contents); 34 int32_t length = encodeContents.GetLength(); 35 if (length <= 7) { 36 for (int32_t i = 0; i < 7 - length; i++) 37 encodeContents = FX_WCHAR('0') + encodeContents; 38 39 CFX_ByteString byteString = encodeContents.UTF8Encode(); 40 int32_t checksum = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get()) 41 ->CalcChecksum(byteString); 42 encodeContents += FX_WCHAR(checksum - 0 + '0'); 43 } 44 if (length > 8) 45 encodeContents = encodeContents.Mid(0, 8); 46 47 return encodeContents; 48 } 49 50 bool CBC_EAN8::Encode(const CFX_WideStringC& contents, 51 bool isDevice, 52 int32_t& e) { 53 if (contents.IsEmpty()) { 54 e = BCExceptionNoContents; 55 return false; 56 } 57 BCFORMAT format = BCFORMAT_EAN_8; 58 int32_t outWidth = 0; 59 int32_t outHeight = 0; 60 CFX_WideString encodeContents = Preprocess(contents); 61 CFX_ByteString byteString = encodeContents.UTF8Encode(); 62 m_renderContents = encodeContents; 63 uint8_t* data = static_cast<CBC_OnedEAN8Writer*>(m_pBCWriter.get()) 64 ->Encode(byteString, format, outWidth, outHeight, e); 65 if (e != BCExceptionNO) 66 return false; 67 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 68 ->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice, e); 69 FX_Free(data); 70 if (e != BCExceptionNO) 71 return false; 72 return true; 73 } 74 75 bool CBC_EAN8::RenderDevice(CFX_RenderDevice* device, 76 const CFX_Matrix* matrix, 77 int32_t& e) { 78 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 79 ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e); 80 if (e != BCExceptionNO) 81 return false; 82 return true; 83 } 84 85 bool CBC_EAN8::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) { 86 static_cast<CBC_OneDimWriter*>(m_pBCWriter.get()) 87 ->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e); 88 if (e != BCExceptionNO) 89 return false; 90 return true; 91 } 92 93 BC_TYPE CBC_EAN8::GetType() { 94 return BC_EAN8; 95 } 96
