1 // Copyright 2014 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 // Original code is licensed as follows:
7 /*
8  * Copyright 2011 ZXing authors
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License");
11  * you may not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  *      http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS,
18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  */
22 
23 #include "xfa/src/fxbarcode/barcode.h"
24 #include "xfa/src/fxbarcode/BC_Writer.h"
25 #include "xfa/src/fxbarcode/BC_Reader.h"
26 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
27 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
28 #include "BC_OneDReader.h"
29 #include "BC_OneDimWriter.h"
30 #include "BC_OnedCodaBarReader.h"
31 #include "BC_OnedCodaBarWriter.h"
32 const FX_CHAR CBC_OnedCodaBarWriter::START_END_CHARS[] = {
33     'A', 'B', 'C', 'D', 'T', 'N', '*', 'E', 'a', 'b', 'c', 'd', 't', 'n', 'e'};
34 const FX_CHAR CBC_OnedCodaBarWriter::CONTENT_CHARS[] = {
35     '0', '1', '2', '3', '4', '5', '6', '7',
36     '8', '9', '-', '$', '/', ':', '+', '.'};
CBC_OnedCodaBarWriter()37 CBC_OnedCodaBarWriter::CBC_OnedCodaBarWriter() {
38   m_chStart = 'A';
39   m_chEnd = 'B';
40   m_iWideNarrRatio = 2;
41 }
~CBC_OnedCodaBarWriter()42 CBC_OnedCodaBarWriter::~CBC_OnedCodaBarWriter() {}
SetStartChar(FX_CHAR start)43 FX_BOOL CBC_OnedCodaBarWriter::SetStartChar(FX_CHAR start) {
44   for (int32_t i = 0; i < sizeof(START_END_CHARS) / sizeof(FX_CHAR); i++) {
45     if (START_END_CHARS[i] == start) {
46       m_chStart = start;
47       return TRUE;
48     }
49   }
50   return FALSE;
51 }
SetEndChar(FX_CHAR end)52 FX_BOOL CBC_OnedCodaBarWriter::SetEndChar(FX_CHAR end) {
53   for (int32_t i = 0; i < sizeof(START_END_CHARS) / sizeof(FX_CHAR); i++) {
54     if (START_END_CHARS[i] == end) {
55       m_chEnd = end;
56       return TRUE;
57     }
58   }
59   return FALSE;
60 }
SetDataLength(int32_t length)61 void CBC_OnedCodaBarWriter::SetDataLength(int32_t length) {
62   m_iDataLenth = length + 2;
63 }
SetTextLocation(BC_TEXT_LOC location)64 FX_BOOL CBC_OnedCodaBarWriter::SetTextLocation(BC_TEXT_LOC location) {
65   if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) {
66     return FALSE;
67   }
68   m_locTextLoc = location;
69   return TRUE;
70 }
SetWideNarrowRatio(int32_t ratio)71 FX_BOOL CBC_OnedCodaBarWriter::SetWideNarrowRatio(int32_t ratio) {
72   if (ratio < 2 || ratio > 3) {
73     return FALSE;
74   }
75   m_iWideNarrRatio = ratio;
76   return TRUE;
77 }
FindChar(FX_WCHAR ch,FX_BOOL isContent)78 FX_BOOL CBC_OnedCodaBarWriter::FindChar(FX_WCHAR ch, FX_BOOL isContent) {
79   if (isContent) {
80     for (int32_t i = 0; i < sizeof(CONTENT_CHARS) / sizeof(FX_CHAR); i++) {
81       if (ch == (FX_WCHAR)CONTENT_CHARS[i]) {
82         return TRUE;
83       }
84     }
85     for (int32_t j = 0; j < sizeof(START_END_CHARS) / sizeof(FX_CHAR); j++) {
86       if (ch == (FX_WCHAR)START_END_CHARS[j]) {
87         return TRUE;
88       }
89     }
90     return FALSE;
91   } else {
92     for (int32_t i = 0; i < sizeof(CONTENT_CHARS) / sizeof(FX_CHAR); i++) {
93       if (ch == (FX_WCHAR)CONTENT_CHARS[i]) {
94         return TRUE;
95       }
96     }
97     return FALSE;
98   }
99 }
CheckContentValidity(const CFX_WideStringC & contents)100 FX_BOOL CBC_OnedCodaBarWriter::CheckContentValidity(
101     const CFX_WideStringC& contents) {
102   FX_WCHAR ch;
103   int32_t index = 0;
104   for (index = 0; index < contents.GetLength(); index++) {
105     ch = contents.GetAt(index);
106     if (FindChar(ch, FALSE)) {
107       continue;
108     } else {
109       return FALSE;
110     }
111   }
112   return TRUE;
113 }
FilterContents(const CFX_WideStringC & contents)114 CFX_WideString CBC_OnedCodaBarWriter::FilterContents(
115     const CFX_WideStringC& contents) {
116   CFX_WideString filtercontents;
117   FX_WCHAR ch;
118   for (int32_t index = 0; index < contents.GetLength(); index++) {
119     ch = contents.GetAt(index);
120     if (ch > 175) {
121       index++;
122       continue;
123     }
124     if (FindChar(ch, TRUE)) {
125       filtercontents += ch;
126     } else {
127       continue;
128     }
129   }
130   return filtercontents;
131 }
Encode(const CFX_ByteString & contents,BCFORMAT format,int32_t & outWidth,int32_t & outHeight,int32_t & e)132 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents,
133                                        BCFORMAT format,
134                                        int32_t& outWidth,
135                                        int32_t& outHeight,
136                                        int32_t& e) {
137   uint8_t* ret = Encode(contents, format, outWidth, outHeight, 0, e);
138   BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
139   return ret;
140 }
Encode(const CFX_ByteString & contents,BCFORMAT format,int32_t & outWidth,int32_t & outHeight,int32_t hints,int32_t & e)141 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents,
142                                        BCFORMAT format,
143                                        int32_t& outWidth,
144                                        int32_t& outHeight,
145                                        int32_t hints,
146                                        int32_t& e) {
147   if (format != BCFORMAT_CODABAR) {
148     e = BCExceptionOnlyEncodeCODEBAR;
149     return NULL;
150   }
151   uint8_t* ret =
152       CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e);
153   BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
154   return ret;
155 }
Encode(const CFX_ByteString & contents,int32_t & outLength,int32_t & e)156 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents,
157                                        int32_t& outLength,
158                                        int32_t& e) {
159   CBC_OnedCodaBarReader CodaBarR;
160   CFX_ByteString data = m_chStart + contents + m_chEnd;
161   m_iContentLen = data.GetLength();
162   uint8_t* result = FX_Alloc2D(uint8_t, m_iWideNarrRatio * 7, data.GetLength());
163   FX_CHAR ch;
164   int32_t position = 0;
165   for (int32_t index = 0; index < data.GetLength(); index++) {
166     ch = data.GetAt(index);
167     if (((ch >= 'a') && (ch <= 'z'))) {
168       ch = ch - 32;
169     }
170     switch (ch) {
171       case 'T':
172         ch = 'A';
173         break;
174       case 'N':
175         ch = 'B';
176         break;
177       case '*':
178         ch = 'C';
179         break;
180       case 'E':
181         ch = 'D';
182         break;
183       default:
184         break;
185     }
186     int32_t code = 0;
187     int32_t len = (int32_t)strlen(CodaBarR.ALPHABET_STRING);
188     for (int32_t i = 0; i < len; i++) {
189       if (ch == CodaBarR.ALPHABET_STRING[i]) {
190         code = CodaBarR.CHARACTER_ENCODINGS[i];
191         break;
192       }
193     }
194     uint8_t color = 1;
195     int32_t counter = 0;
196     int32_t bit = 0;
197     while (bit < 7) {
198       result[position] = color;
199       position++;
200       if (((code >> (6 - bit)) & 1) == 0 || counter == m_iWideNarrRatio - 1) {
201         color = !color;
202         bit++;
203         counter = 0;
204       } else {
205         counter++;
206       }
207     }
208     if (index < data.GetLength() - 1) {
209       result[position] = 0;
210       position++;
211     }
212   }
213   outLength = position;
214   return result;
215 }
encodedContents(const CFX_WideStringC & contents)216 CFX_WideString CBC_OnedCodaBarWriter::encodedContents(
217     const CFX_WideStringC& contents) {
218   CFX_WideString strStart(m_chStart);
219   CFX_WideString strEnd(m_chEnd);
220   return strStart + contents + strEnd;
221 }
RenderResult(const CFX_WideStringC & contents,uint8_t * code,int32_t codeLength,FX_BOOL isDevice,int32_t & e)222 void CBC_OnedCodaBarWriter::RenderResult(const CFX_WideStringC& contents,
223                                          uint8_t* code,
224                                          int32_t codeLength,
225                                          FX_BOOL isDevice,
226                                          int32_t& e) {
227   CBC_OneDimWriter::RenderResult(encodedContents(contents), code, codeLength,
228                                  isDevice, e);
229 }
230