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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 "fxbarcode/cbc_code128.h"
     23 
     24 #include <memory>
     25 
     26 #include "fxbarcode/oned/BC_OnedCode128Writer.h"
     27 #include "third_party/base/ptr_util.h"
     28 
     29 CBC_Code128::CBC_Code128(BC_TYPE type)
     30     : CBC_OneCode(pdfium::MakeUnique<CBC_OnedCode128Writer>(type)) {}
     31 
     32 CBC_Code128::~CBC_Code128() {}
     33 
     34 bool CBC_Code128::SetTextLocation(BC_TEXT_LOC location) {
     35   return GetOnedCode128Writer()->SetTextLocation(location);
     36 }
     37 
     38 bool CBC_Code128::Encode(const WideStringView& contents) {
     39   if (contents.IsEmpty())
     40     return false;
     41 
     42   BCFORMAT format = BCFORMAT_CODE_128;
     43   int32_t outWidth = 0;
     44   int32_t outHeight = 0;
     45   auto* pWriter = GetOnedCode128Writer();
     46   WideString content(contents);
     47   if (contents.GetLength() % 2 && pWriter->GetType() == BC_CODE128_C)
     48     content += '0';
     49 
     50   WideString encodeContents = pWriter->FilterContents(content.AsStringView());
     51   m_renderContents = encodeContents;
     52   ByteString byteString = encodeContents.UTF8Encode();
     53   std::unique_ptr<uint8_t, FxFreeDeleter> data(
     54       pWriter->Encode(byteString, format, outWidth, outHeight));
     55   if (!data)
     56     return false;
     57   return pWriter->RenderResult(encodeContents.AsStringView(), data.get(),
     58                                outWidth);
     59 }
     60 
     61 bool CBC_Code128::RenderDevice(CFX_RenderDevice* device,
     62                                const CFX_Matrix* matrix) {
     63   return GetOnedCode128Writer()->RenderDeviceResult(
     64       device, matrix, m_renderContents.AsStringView());
     65 }
     66 
     67 BC_TYPE CBC_Code128::GetType() {
     68   return BC_CODE128;
     69 }
     70 
     71 CBC_OnedCode128Writer* CBC_Code128::GetOnedCode128Writer() {
     72   return static_cast<CBC_OnedCode128Writer*>(m_pBCWriter.get());
     73 }
     74