cbc_upca.cpp revision 33357cad1fd1321a2b38d2963e2585f27ce980a2 
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_upca.h"
23
24#include "xfa/fxbarcode/oned/BC_OnedUPCAWriter.h"
25
26CBC_UPCA::CBC_UPCA() : CBC_OneCode(new CBC_OnedUPCAWriter) {}
27
28CBC_UPCA::~CBC_UPCA() {}
29
30CFX_WideString CBC_UPCA::Preprocess(const CFX_WideStringC& contents) {
31  CBC_OnedUPCAWriter* pWriter =
32      static_cast<CBC_OnedUPCAWriter*>(m_pBCWriter.get());
33  CFX_WideString encodeContents = pWriter->FilterContents(contents);
34  int32_t length = encodeContents.GetLength();
35  if (length <= 11) {
36    for (int32_t i = 0; i < 11 - length; i++)
37      encodeContents = FX_WCHAR('0') + encodeContents;
38
39    CFX_ByteString byteString = encodeContents.UTF8Encode();
40    int32_t checksum = pWriter->CalcChecksum(byteString);
41    byteString += checksum - 0 + '0';
42    encodeContents = byteString.UTF8Decode();
43  }
44  if (length > 12)
45    encodeContents = encodeContents.Mid(0, 12);
46
47  return encodeContents;
48}
49
50bool CBC_UPCA::Encode(const CFX_WideStringC& contents,
51                      bool isDevice,
52                      int32_t& e) {
53  if (contents.IsEmpty()) {
54    e = BCExceptionNoContents;
55    return false;
56  }
57  BCFORMAT format = BCFORMAT_UPC_A;
58  int32_t outWidth = 0;
59  int32_t outHeight = 0;
60  CFX_WideString encodeContents = Preprocess(contents);
61  CFX_ByteString byteString = encodeContents.UTF8Encode();
62  m_renderContents = encodeContents;
63
64  CBC_OnedUPCAWriter* pWriter =
65      static_cast<CBC_OnedUPCAWriter*>(m_pBCWriter.get());
66
67  pWriter->Init();
68  uint8_t* data = pWriter->Encode(byteString, format, outWidth, outHeight, e);
69  if (e != BCExceptionNO)
70    return false;
71  pWriter->RenderResult(encodeContents.AsStringC(), data, outWidth, isDevice,
72                        e);
73  FX_Free(data);
74  if (e != BCExceptionNO)
75    return false;
76  return true;
77}
78
79bool CBC_UPCA::RenderDevice(CFX_RenderDevice* device,
80                            const CFX_Matrix* matrix,
81                            int32_t& e) {
82  static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
83      ->RenderDeviceResult(device, matrix, m_renderContents.AsStringC(), e);
84  if (e != BCExceptionNO)
85    return false;
86  return true;
87}
88
89bool CBC_UPCA::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) {
90  static_cast<CBC_OneDimWriter*>(m_pBCWriter.get())
91      ->RenderBitmapResult(pOutBitmap, m_renderContents.AsStringC(), e);
92  if (e != BCExceptionNO)
93    return false;
94  return true;
95}
96
97BC_TYPE CBC_UPCA::GetType() {
98  return BC_UPCA;
99}
100