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| 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/BC_BinaryBitmap.h" |
| 25 #include "xfa/fxbarcode/BC_BufferedImageLuminanceSource.h" |
| 26 #include "xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h" |
| 27 #include "xfa/fxbarcode/oned/BC_OnedEAN13Reader.h" |
| 28 #include "xfa/fxbarcode/oned/BC_OnedEAN13Writer.h" |
| 29 |
| 30 CBC_EAN13::CBC_EAN13() { |
| 31 m_pBCReader = (CBC_Reader*)new (CBC_OnedEAN13Reader); |
| 32 m_pBCWriter = (CBC_Writer*)new (CBC_OnedEAN13Writer); |
| 33 } |
| 34 |
| 35 CBC_EAN13::~CBC_EAN13() { |
| 36 delete (m_pBCReader); |
| 37 delete (m_pBCWriter); |
| 38 } |
| 39 |
| 40 CFX_WideString CBC_EAN13::Preprocess(const CFX_WideStringC& contents) { |
| 41 CFX_WideString encodeContents = |
| 42 ((CBC_OnedEAN13Writer*)m_pBCWriter)->FilterContents(contents); |
| 43 int32_t length = encodeContents.GetLength(); |
| 44 if (length <= 12) { |
| 45 for (int32_t i = 0; i < 12 - length; i++) |
| 46 encodeContents = FX_WCHAR('0') + encodeContents; |
| 47 |
| 48 CFX_ByteString byteString = encodeContents.UTF8Encode(); |
| 49 int32_t checksum = |
| 50 ((CBC_OnedEAN13Writer*)m_pBCWriter)->CalcChecksum(byteString); |
| 51 byteString += checksum - 0 + '0'; |
| 52 encodeContents = byteString.UTF8Decode(); |
| 53 } |
| 54 if (length > 13) |
| 55 encodeContents = encodeContents.Mid(0, 13); |
| 56 |
| 57 return encodeContents; |
| 58 } |
| 59 |
| 60 FX_BOOL CBC_EAN13::Encode(const CFX_WideStringC& contents, |
| 61 FX_BOOL isDevice, |
| 62 int32_t& e) { |
| 63 if (contents.IsEmpty()) { |
| 64 e = BCExceptionNoContents; |
| 65 return FALSE; |
| 66 } |
| 67 BCFORMAT format = BCFORMAT_EAN_13; |
| 68 int32_t outWidth = 0; |
| 69 int32_t outHeight = 0; |
| 70 CFX_WideString encodeContents = Preprocess(contents); |
| 71 CFX_ByteString byteString = encodeContents.UTF8Encode(); |
| 72 m_renderContents = encodeContents; |
| 73 uint8_t* data = static_cast<CBC_OnedEAN13Writer*>(m_pBCWriter) |
| 74 ->Encode(byteString, format, outWidth, outHeight, e); |
| 75 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); |
| 76 ((CBC_OneDimWriter*)m_pBCWriter) |
| 77 ->RenderResult(encodeContents, data, outWidth, isDevice, e); |
| 78 FX_Free(data); |
| 79 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); |
| 80 return TRUE; |
| 81 } |
| 82 |
| 83 FX_BOOL CBC_EAN13::RenderDevice(CFX_RenderDevice* device, |
| 84 const CFX_Matrix* matirx, |
| 85 int32_t& e) { |
| 86 ((CBC_OneDimWriter*)m_pBCWriter) |
| 87 ->RenderDeviceResult(device, matirx, m_renderContents, e); |
| 88 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); |
| 89 return TRUE; |
| 90 } |
| 91 |
| 92 FX_BOOL CBC_EAN13::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) { |
| 93 ((CBC_OneDimWriter*)m_pBCWriter) |
| 94 ->RenderBitmapResult(pOutBitmap, m_renderContents, e); |
| 95 BC_EXCEPTION_CHECK_ReturnValue(e, FALSE); |
| 96 return TRUE; |
| 97 } |
| 98 |
| 99 CFX_WideString CBC_EAN13::Decode(uint8_t* buf, |
| 100 int32_t width, |
| 101 int32_t hight, |
| 102 int32_t& e) { |
| 103 CFX_WideString str; |
| 104 return str; |
| 105 } |
| 106 |
| 107 CFX_WideString CBC_EAN13::Decode(CFX_DIBitmap* pBitmap, int32_t& e) { |
| 108 CBC_BufferedImageLuminanceSource source(pBitmap); |
| 109 CBC_GlobalHistogramBinarizer binarizer(&source); |
| 110 CBC_BinaryBitmap bitmap(&binarizer); |
| 111 CFX_ByteString str = m_pBCReader->Decode(&bitmap, 0, e); |
| 112 BC_EXCEPTION_CHECK_ReturnValue(e, FX_WSTRC(L"")); |
| 113 return CFX_WideString::FromUTF8(str, str.GetLength()); |
| 114 } |
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