BC_TextEncoder.cpp revision 4d3acf4ec42bf6e838f9060103aff98fbf170794 
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 2006-2007 Jeremias Maerki.
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/fxbarcode/BC_Dimension.h"
24#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
25#include "xfa/fxbarcode/datamatrix/BC_C40Encoder.h"
26#include "xfa/fxbarcode/datamatrix/BC_Encoder.h"
27#include "xfa/fxbarcode/datamatrix/BC_EncoderContext.h"
28#include "xfa/fxbarcode/datamatrix/BC_HighLevelEncoder.h"
29#include "xfa/fxbarcode/datamatrix/BC_SymbolInfo.h"
30#include "xfa/fxbarcode/datamatrix/BC_SymbolShapeHint.h"
31#include "xfa/fxbarcode/datamatrix/BC_TextEncoder.h"
32
33CBC_TextEncoder::CBC_TextEncoder() {}
34CBC_TextEncoder::~CBC_TextEncoder() {}
35int32_t CBC_TextEncoder::getEncodingMode() {
36  return TEXT_ENCODATION;
37}
38int32_t CBC_TextEncoder::encodeChar(FX_WCHAR c,
39                                    CFX_WideString& sb,
40                                    int32_t& e) {
41  if (c == ' ') {
42    sb += (FX_WCHAR)'\3';
43    return 1;
44  }
45  if (c >= '0' && c <= '9') {
46    sb += (FX_WCHAR)(c - 48 + 4);
47    return 1;
48  }
49  if (c >= 'a' && c <= 'z') {
50    sb += (FX_WCHAR)(c - 97 + 14);
51    return 1;
52  }
53  if (c <= 0x1f) {
54    sb += (FX_WCHAR)'\0';
55    sb += c;
56    return 2;
57  }
58  if (c >= '!' && c <= '/') {
59    sb += (FX_WCHAR)'\1';
60    sb += (FX_WCHAR)(c - 33);
61    return 2;
62  }
63  if (c >= ':' && c <= '@') {
64    sb += (FX_WCHAR)'\1';
65    sb += (FX_WCHAR)(c - 58 + 15);
66    return 2;
67  }
68  if (c >= '[' && c <= '_') {
69    sb += (FX_WCHAR)'\1';
70    sb += (FX_WCHAR)(c - 91 + 22);
71    return 2;
72  }
73  if (c == 0x0060) {
74    sb += (FX_WCHAR)'\2';
75    sb += (FX_WCHAR)(c - 96);
76    return 2;
77  }
78  if (c >= 'A' && c <= 'Z') {
79    sb += (FX_WCHAR)'\2';
80    sb += (FX_WCHAR)(c - 65 + 1);
81    return 2;
82  }
83  if (c >= '{' && c <= 0x007f) {
84    sb += (FX_WCHAR)'\2';
85    sb += (FX_WCHAR)(c - 123 + 27);
86    return 2;
87  }
88  if (c >= 0x0080) {
89    sb += (FX_WCHAR)'\1';
90    sb += (FX_WCHAR)0x001e;
91    int32_t len = 2;
92    len += encodeChar((FX_WCHAR)(c - 128), sb, e);
93    BC_EXCEPTION_CHECK_ReturnValue(e, -1);
94    return len;
95  }
96  CBC_HighLevelEncoder::illegalCharacter(c, e);
97  return -1;
98}
99