| // Copyright 2016 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 |
| /* |
| * Copyright 2011 ZXing authors |
| * |
| * 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/cbc_ean13.h" |
| |
| #include <memory> |
| |
| #include "fxbarcode/oned/BC_OnedEAN13Writer.h" |
| #include "third_party/base/ptr_util.h" |
| |
| CBC_EAN13::CBC_EAN13() |
| : CBC_OneCode(pdfium::MakeUnique<CBC_OnedEAN13Writer>()) {} |
| |
| CBC_EAN13::~CBC_EAN13() {} |
| |
| WideString CBC_EAN13::Preprocess(const WideStringView& contents) { |
| auto* pWriter = GetOnedEAN13Writer(); |
| WideString encodeContents = pWriter->FilterContents(contents); |
| int32_t length = encodeContents.GetLength(); |
| if (length <= 12) { |
| for (int32_t i = 0; i < 12 - length; i++) |
| encodeContents = wchar_t('0') + encodeContents; |
| |
| ByteString byteString = encodeContents.UTF8Encode(); |
| int32_t checksum = pWriter->CalcChecksum(byteString); |
| byteString += checksum - 0 + '0'; |
| encodeContents = byteString.UTF8Decode(); |
| } |
| if (length > 13) |
| encodeContents = encodeContents.Left(13); |
| |
| return encodeContents; |
| } |
| |
| bool CBC_EAN13::Encode(const WideStringView& contents) { |
| if (contents.IsEmpty()) |
| return false; |
| |
| BCFORMAT format = BCFORMAT_EAN_13; |
| int32_t outWidth = 0; |
| int32_t outHeight = 0; |
| m_renderContents = Preprocess(contents); |
| ByteString byteString = m_renderContents.UTF8Encode(); |
| auto* pWriter = GetOnedEAN13Writer(); |
| std::unique_ptr<uint8_t, FxFreeDeleter> data( |
| pWriter->Encode(byteString, format, outWidth, outHeight)); |
| return data && pWriter->RenderResult(m_renderContents.AsStringView(), |
| data.get(), outWidth); |
| } |
| |
| bool CBC_EAN13::RenderDevice(CFX_RenderDevice* device, |
| const CFX_Matrix* matrix) { |
| return GetOnedEAN13Writer()->RenderDeviceResult( |
| device, matrix, m_renderContents.AsStringView()); |
| } |
| |
| BC_TYPE CBC_EAN13::GetType() { |
| return BC_EAN13; |
| } |
| |
| CBC_OnedEAN13Writer* CBC_EAN13::GetOnedEAN13Writer() { |
| return static_cast<CBC_OnedEAN13Writer*>(m_pBCWriter.get()); |
| } |