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_upca.h"
23
24 #include <memory>
25
26 #include "fxbarcode/oned/BC_OnedUPCAWriter.h"
27 #include "third_party/base/ptr_util.h"
28
CBC_UPCA()29 CBC_UPCA::CBC_UPCA() : CBC_OneCode(pdfium::MakeUnique<CBC_OnedUPCAWriter>()) {}
30
~CBC_UPCA()31 CBC_UPCA::~CBC_UPCA() {}
32
Preprocess(const WideStringView & contents)33 WideString CBC_UPCA::Preprocess(const WideStringView& contents) {
34 CBC_OnedUPCAWriter* pWriter = GetOnedUPCAWriter();
35 WideString encodeContents = pWriter->FilterContents(contents);
36 int32_t length = encodeContents.GetLength();
37 if (length <= 11) {
38 for (int32_t i = 0; i < 11 - length; i++)
39 encodeContents = wchar_t('0') + encodeContents;
40
41 ByteString byteString = encodeContents.UTF8Encode();
42 int32_t checksum = pWriter->CalcChecksum(byteString);
43 byteString += checksum - 0 + '0';
44 encodeContents = byteString.UTF8Decode();
45 }
46 if (length > 12)
47 encodeContents = encodeContents.Left(12);
48
49 return encodeContents;
50 }
51
Encode(const WideStringView & contents)52 bool CBC_UPCA::Encode(const WideStringView& contents) {
53 if (contents.IsEmpty())
54 return false;
55
56 BCFORMAT format = BCFORMAT_UPC_A;
57 int32_t outWidth = 0;
58 int32_t outHeight = 0;
59 WideString encodeContents = Preprocess(contents);
60 ByteString byteString = encodeContents.UTF8Encode();
61 m_renderContents = encodeContents;
62
63 CBC_OnedUPCAWriter* pWriter = GetOnedUPCAWriter();
64 pWriter->Init();
65 std::unique_ptr<uint8_t, FxFreeDeleter> data(
66 pWriter->Encode(byteString, format, outWidth, outHeight));
67 if (!data)
68 return false;
69 return pWriter->RenderResult(encodeContents.AsStringView(), data.get(),
70 outWidth);
71 }
72
RenderDevice(CFX_RenderDevice * device,const CFX_Matrix * matrix)73 bool CBC_UPCA::RenderDevice(CFX_RenderDevice* device,
74 const CFX_Matrix* matrix) {
75 return GetOnedUPCAWriter()->RenderDeviceResult(
76 device, matrix, m_renderContents.AsStringView());
77 }
78
GetType()79 BC_TYPE CBC_UPCA::GetType() {
80 return BC_UPCA;
81 }
82
GetOnedUPCAWriter()83 CBC_OnedUPCAWriter* CBC_UPCA::GetOnedUPCAWriter() {
84 return static_cast<CBC_OnedUPCAWriter*>(m_pBCWriter.get());
85 }
86