// 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; WideString encodeContents = Preprocess(contents); ByteString byteString = encodeContents.UTF8Encode(); m_renderContents = encodeContents; auto* pWriter = GetOnedEAN13Writer(); std::unique_ptr<uint8_t, FxFreeDeleter> data( pWriter->Encode(byteString, format, outWidth, outHeight)); if (!data) return false; return pWriter->RenderResult(encodeContents.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()); }