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 2009 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 "core/fxge/cfx_fxgedevice.h"
24 #include "core/fxge/cfx_gemodule.h"
25 #include "xfa/fxbarcode/BC_Writer.h"
26 #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
27 #include "xfa/fxbarcode/oned/BC_OneDimWriter.h"
28 #include "xfa/fxbarcode/oned/BC_OnedEAN8Writer.h"
29
30 namespace {
31
32 const int32_t START_END_PATTERN[3] = {1, 1, 1};
33 const int32_t MIDDLE_PATTERN[5] = {1, 1, 1, 1, 1};
34 const int32_t L_PATTERNS[10][4] = {
35 {3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
36 {1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2}};
37
38 } // namespace
39
CBC_OnedEAN8Writer()40 CBC_OnedEAN8Writer::CBC_OnedEAN8Writer() {
41 m_iDataLenth = 8;
42 m_codeWidth = 3 + (7 * 4) + 5 + (7 * 4) + 3;
43 }
~CBC_OnedEAN8Writer()44 CBC_OnedEAN8Writer::~CBC_OnedEAN8Writer() {}
SetDataLength(int32_t length)45 void CBC_OnedEAN8Writer::SetDataLength(int32_t length) {
46 m_iDataLenth = 8;
47 }
SetTextLocation(BC_TEXT_LOC location)48 bool CBC_OnedEAN8Writer::SetTextLocation(BC_TEXT_LOC location) {
49 if (location == BC_TEXT_LOC_BELOWEMBED) {
50 m_locTextLoc = location;
51 return true;
52 }
53 return false;
54 }
CheckContentValidity(const CFX_WideStringC & contents)55 bool CBC_OnedEAN8Writer::CheckContentValidity(const CFX_WideStringC& contents) {
56 for (int32_t i = 0; i < contents.GetLength(); i++) {
57 if (contents.GetAt(i) >= '0' && contents.GetAt(i) <= '9') {
58 continue;
59 } else {
60 return false;
61 }
62 }
63 return true;
64 }
FilterContents(const CFX_WideStringC & contents)65 CFX_WideString CBC_OnedEAN8Writer::FilterContents(
66 const CFX_WideStringC& contents) {
67 CFX_WideString filtercontents;
68 FX_WCHAR ch;
69 for (int32_t i = 0; i < contents.GetLength(); i++) {
70 ch = contents.GetAt(i);
71 if (ch > 175) {
72 i++;
73 continue;
74 }
75 if (ch >= '0' && ch <= '9') {
76 filtercontents += ch;
77 }
78 }
79 return filtercontents;
80 }
CalcChecksum(const CFX_ByteString & contents)81 int32_t CBC_OnedEAN8Writer::CalcChecksum(const CFX_ByteString& contents) {
82 int32_t odd = 0;
83 int32_t even = 0;
84 int32_t j = 1;
85 for (int32_t i = contents.GetLength() - 1; i >= 0; i--) {
86 if (j % 2) {
87 odd += FXSYS_atoi(contents.Mid(i, 1).c_str());
88 } else {
89 even += FXSYS_atoi(contents.Mid(i, 1).c_str());
90 }
91 j++;
92 }
93 int32_t checksum = (odd * 3 + even) % 10;
94 checksum = (10 - checksum) % 10;
95 return (checksum);
96 }
Encode(const CFX_ByteString & contents,BCFORMAT format,int32_t & outWidth,int32_t & outHeight,int32_t & e)97 uint8_t* CBC_OnedEAN8Writer::Encode(const CFX_ByteString& contents,
98 BCFORMAT format,
99 int32_t& outWidth,
100 int32_t& outHeight,
101 int32_t& e) {
102 uint8_t* ret = Encode(contents, format, outWidth, outHeight, 0, e);
103 if (e != BCExceptionNO)
104 return nullptr;
105 return ret;
106 }
Encode(const CFX_ByteString & contents,BCFORMAT format,int32_t & outWidth,int32_t & outHeight,int32_t hints,int32_t & e)107 uint8_t* CBC_OnedEAN8Writer::Encode(const CFX_ByteString& contents,
108 BCFORMAT format,
109 int32_t& outWidth,
110 int32_t& outHeight,
111 int32_t hints,
112 int32_t& e) {
113 if (format != BCFORMAT_EAN_8) {
114 e = BCExceptionOnlyEncodeEAN_8;
115 return nullptr;
116 }
117 uint8_t* ret =
118 CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e);
119 if (e != BCExceptionNO)
120 return nullptr;
121 return ret;
122 }
Encode(const CFX_ByteString & contents,int32_t & outLength,int32_t & e)123 uint8_t* CBC_OnedEAN8Writer::Encode(const CFX_ByteString& contents,
124 int32_t& outLength,
125 int32_t& e) {
126 if (contents.GetLength() != 8) {
127 e = BCExceptionDigitLengthMustBe8;
128 return nullptr;
129 }
130 outLength = m_codeWidth;
131 uint8_t* result = FX_Alloc(uint8_t, m_codeWidth);
132 int32_t pos = 0;
133 pos += AppendPattern(result, pos, START_END_PATTERN, 3, 1, e);
134 if (e != BCExceptionNO) {
135 FX_Free(result);
136 return nullptr;
137 }
138 int32_t i = 0;
139 for (i = 0; i <= 3; i++) {
140 int32_t digit = FXSYS_atoi(contents.Mid(i, 1).c_str());
141 pos += AppendPattern(result, pos, L_PATTERNS[digit], 4, 0, e);
142 if (e != BCExceptionNO) {
143 FX_Free(result);
144 return nullptr;
145 }
146 }
147 pos += AppendPattern(result, pos, MIDDLE_PATTERN, 5, 0, e);
148 if (e != BCExceptionNO) {
149 FX_Free(result);
150 return nullptr;
151 }
152 for (i = 4; i <= 7; i++) {
153 int32_t digit = FXSYS_atoi(contents.Mid(i, 1).c_str());
154 pos += AppendPattern(result, pos, L_PATTERNS[digit], 4, 1, e);
155 if (e != BCExceptionNO) {
156 FX_Free(result);
157 return nullptr;
158 }
159 }
160 pos += AppendPattern(result, pos, START_END_PATTERN, 3, 1, e);
161 if (e != BCExceptionNO) {
162 FX_Free(result);
163 return nullptr;
164 }
165 return result;
166 }
167
ShowChars(const CFX_WideStringC & contents,CFX_DIBitmap * pOutBitmap,CFX_RenderDevice * device,const CFX_Matrix * matrix,int32_t barWidth,int32_t multiple,int32_t & e)168 void CBC_OnedEAN8Writer::ShowChars(const CFX_WideStringC& contents,
169 CFX_DIBitmap* pOutBitmap,
170 CFX_RenderDevice* device,
171 const CFX_Matrix* matrix,
172 int32_t barWidth,
173 int32_t multiple,
174 int32_t& e) {
175 if (!device && !pOutBitmap) {
176 e = BCExceptionIllegalArgument;
177 return;
178 }
179
180 int32_t leftPosition = 3 * multiple;
181 CFX_ByteString str = FX_UTF8Encode(contents);
182 int32_t iLength = str.GetLength();
183 FXTEXT_CHARPOS* pCharPos = FX_Alloc(FXTEXT_CHARPOS, iLength);
184 FXSYS_memset(pCharPos, 0, sizeof(FXTEXT_CHARPOS) * iLength);
185 CFX_ByteString tempStr = str.Mid(0, 4);
186 int32_t iLen = tempStr.GetLength();
187 int32_t strWidth = 7 * multiple * 4;
188 FX_FLOAT blank = 0.0;
189 CFX_FxgeDevice geBitmap;
190 if (pOutBitmap)
191 geBitmap.Attach(pOutBitmap, false, nullptr, false);
192
193 int32_t iFontSize = (int32_t)fabs(m_fFontSize);
194 int32_t iTextHeight = iFontSize + 1;
195 if (!pOutBitmap) {
196 CFX_Matrix matr(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
197 CFX_FloatRect rect(
198 (FX_FLOAT)leftPosition, (FX_FLOAT)(m_Height - iTextHeight),
199 (FX_FLOAT)(leftPosition + strWidth - 0.5), (FX_FLOAT)m_Height);
200 matr.Concat(*matrix);
201 matr.TransformRect(rect);
202 FX_RECT re = rect.GetOuterRect();
203 device->FillRect(&re, m_backgroundColor);
204 CFX_Matrix matr1(m_outputHScale, 0.0, 0.0, 1.0, 0.0, 0.0);
205 CFX_FloatRect rect1(
206 (FX_FLOAT)(leftPosition + 33 * multiple),
207 (FX_FLOAT)(m_Height - iTextHeight),
208 (FX_FLOAT)(leftPosition + 33 * multiple + strWidth - 0.5),
209 (FX_FLOAT)m_Height);
210 matr1.Concat(*matrix);
211 matr1.TransformRect(rect1);
212 re = rect1.GetOuterRect();
213 device->FillRect(&re, m_backgroundColor);
214 }
215 if (!pOutBitmap)
216 strWidth = (int32_t)(strWidth * m_outputHScale);
217
218 CalcTextInfo(tempStr, pCharPos, m_pFont, (FX_FLOAT)strWidth, iFontSize,
219 blank);
220 CFX_Matrix affine_matrix(1.0, 0.0, 0.0, -1.0, 0.0, (FX_FLOAT)iFontSize);
221 CFX_FxgeDevice ge;
222 if (pOutBitmap) {
223 delete ge.GetBitmap();
224 ge.Create(strWidth, iTextHeight, FXDIB_Argb, nullptr);
225 ge.GetBitmap()->Clear(m_backgroundColor);
226 ge.DrawNormalText(iLen, pCharPos, m_pFont, static_cast<FX_FLOAT>(iFontSize),
227 &affine_matrix, m_fontColor, FXTEXT_CLEARTYPE);
228 geBitmap.SetDIBits(ge.GetBitmap(), leftPosition, m_Height - iTextHeight);
229 } else {
230 CFX_Matrix affine_matrix1(1.0, 0.0, 0.0, -1.0,
231 (FX_FLOAT)leftPosition * m_outputHScale,
232 (FX_FLOAT)(m_Height - iTextHeight + iFontSize));
233 affine_matrix1.Concat(*matrix);
234 device->DrawNormalText(iLen, pCharPos, m_pFont,
235 static_cast<FX_FLOAT>(iFontSize), &affine_matrix1,
236 m_fontColor, FXTEXT_CLEARTYPE);
237 }
238 tempStr = str.Mid(4, 4);
239 iLen = tempStr.GetLength();
240 CalcTextInfo(tempStr, pCharPos + 4, m_pFont, (FX_FLOAT)strWidth, iFontSize,
241 blank);
242 if (pOutBitmap) {
243 delete ge.GetBitmap();
244 ge.Create(strWidth, iTextHeight, FXDIB_Argb, nullptr);
245 ge.GetBitmap()->Clear(m_backgroundColor);
246 ge.DrawNormalText(iLen, pCharPos + 4, m_pFont,
247 static_cast<FX_FLOAT>(iFontSize), &affine_matrix,
248 m_fontColor, FXTEXT_CLEARTYPE);
249 geBitmap.SetDIBits(ge.GetBitmap(), leftPosition + 33 * multiple,
250 m_Height - iTextHeight);
251 } else {
252 CFX_Matrix affine_matrix1(
253 1.0, 0.0, 0.0, -1.0,
254 (FX_FLOAT)(leftPosition + 33 * multiple) * m_outputHScale,
255 (FX_FLOAT)(m_Height - iTextHeight + iFontSize));
256 if (matrix) {
257 affine_matrix1.Concat(*matrix);
258 }
259 device->DrawNormalText(iLen, pCharPos + 4, m_pFont,
260 static_cast<FX_FLOAT>(iFontSize), &affine_matrix1,
261 m_fontColor, FXTEXT_CLEARTYPE);
262 }
263 FX_Free(pCharPos);
264 }
265
RenderResult(const CFX_WideStringC & contents,uint8_t * code,int32_t codeLength,bool isDevice,int32_t & e)266 void CBC_OnedEAN8Writer::RenderResult(const CFX_WideStringC& contents,
267 uint8_t* code,
268 int32_t codeLength,
269 bool isDevice,
270 int32_t& e) {
271 CBC_OneDimWriter::RenderResult(contents, code, codeLength, isDevice, e);
272 }
273