1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/******************************************************************************
* Copyright (C) 2017 Kitsune Ral <kitsune-ral@users.sf.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <QtCore/QJsonObject>
#include <QtCore/QJsonArray> // Includes <QtCore/QJsonValue>
#include <QtCore/QDate>
#include <QtCore/QVariant>
#include <unordered_map>
// Enable std::unordered_map<QString, T>
namespace std
{
template <> struct hash<QString>
{
size_t operator()(const QString& s) const Q_DECL_NOEXCEPT
{
return qHash(s, uint(qGlobalQHashSeed()));
}
};
}
namespace QMatrixClient
{
// This catches anything implicitly convertible to QJsonValue/Object/Array
inline QJsonValue toJson(const QJsonValue& val) { return val; }
inline QJsonObject toJson(const QJsonObject& o) { return o; }
inline QJsonArray toJson(const QJsonArray& arr) { return arr; }
#ifdef _MSC_VER // MSVC gets lost and doesn't know which overload to use
inline QJsonValue toJson(const QString& s) { return s; }
#endif
template <typename T>
inline QJsonArray toJson(const std::vector<T>& vals)
{
QJsonArray ar;
for (const auto& v: vals)
ar.push_back(toJson(v));
return ar;
}
template <typename T>
inline QJsonArray toJson(const QVector<T>& vals)
{
QJsonArray ar;
for (const auto& v: vals)
ar.push_back(toJson(v));
return ar;
}
inline QJsonArray toJson(const QStringList& strings)
{
return QJsonArray::fromStringList(strings);
}
inline QJsonValue toJson(const QByteArray& bytes)
{
return QJsonValue(bytes.constData());
}
inline QJsonObject toJson(const QVariantMap& map)
{
return QJsonObject::fromVariantMap(map);
}
#if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))
inline QJsonObject toJson(const QVariantHash& hMap)
{
return QJsonObject::fromVariantHash(hMap);
}
#endif
template <typename T>
inline QJsonObject toJson(const QHash<QString, T>& hashMap)
{
QJsonObject json;
for (auto it = hashMap.begin(); it != hashMap.end(); ++it)
json.insert(it.key(), toJson(it.value()));
return json;
}
template <typename T>
inline QJsonObject toJson(const std::unordered_map<QString, T>& hashMap)
{
QJsonObject json;
for (auto it = hashMap.begin(); it != hashMap.end(); ++it)
json.insert(it.key(), toJson(it.value()));
return json;
}
template <typename T>
struct FromJson
{
T operator()(const QJsonValue& jv) const { return static_cast<T>(jv); }
};
template <typename T>
inline T fromJson(const QJsonValue& jv)
{
return FromJson<T>()(jv);
}
template <> struct FromJson<bool>
{
auto operator()(const QJsonValue& jv) const { return jv.toBool(); }
};
template <> struct FromJson<int>
{
auto operator()(const QJsonValue& jv) const { return jv.toInt(); }
};
template <> struct FromJson<double>
{
auto operator()(const QJsonValue& jv) const { return jv.toDouble(); }
};
template <> struct FromJson<qint64>
{
auto operator()(const QJsonValue& jv) const { return qint64(jv.toDouble()); }
};
template <> struct FromJson<QString>
{
auto operator()(const QJsonValue& jv) const { return jv.toString(); }
};
template <> struct FromJson<QDateTime>
{
auto operator()(const QJsonValue& jv) const
{
return QDateTime::fromMSecsSinceEpoch(fromJson<qint64>(jv), Qt::UTC);
}
};
template <> struct FromJson<QDate>
{
auto operator()(const QJsonValue& jv) const
{
return fromJson<QDateTime>(jv).date();
}
};
template <> struct FromJson<QJsonObject>
{
auto operator()(const QJsonValue& jv) const
{
return jv.toObject();
}
};
template <> struct FromJson<QJsonArray>
{
auto operator()(const QJsonValue& jv) const
{
return jv.toArray();
}
};
template <typename T> struct FromJson<std::vector<T>>
{
auto operator()(const QJsonValue& jv) const
{
using size_type = typename std::vector<T>::size_type;
const auto jsonArray = jv.toArray();
std::vector<T> vect; vect.resize(size_type(jsonArray.size()));
std::transform(jsonArray.begin(), jsonArray.end(),
vect.begin(), FromJson<T>());
return vect;
}
};
template <typename T> struct FromJson<QVector<T>>
{
auto operator()(const QJsonValue& jv) const
{
const auto jsonArray = jv.toArray();
QVector<T> vect; vect.resize(jsonArray.size());
std::transform(jsonArray.begin(), jsonArray.end(),
vect.begin(), FromJson<T>());
return vect;
}
};
template <typename T> struct FromJson<QList<T>>
{
auto operator()(const QJsonValue& jv) const
{
const auto jsonArray = jv.toArray();
QList<T> sl; sl.reserve(jsonArray.size());
std::transform(jsonArray.begin(), jsonArray.end(),
std::back_inserter(sl), FromJson<T>());
return sl;
}
};
template <> struct FromJson<QStringList> : FromJson<QList<QString>> { };
template <> struct FromJson<QByteArray>
{
auto operator()(const QJsonValue& jv) const
{
return fromJson<QString>(jv).toLatin1();
}
};
template <> struct FromJson<QVariantMap>
{
auto operator()(const QJsonValue& jv) const
{
return jv.toObject().toVariantMap();
}
};
#if (QT_VERSION >= QT_VERSION_CHECK(5, 5, 0))
template <> struct FromJson<QVariantHash>
{
auto operator()(const QJsonValue& jv) const
{
return jv.toObject().toVariantHash();
}
};
#endif
template <typename T> struct FromJson<QHash<QString, T>>
{
auto operator()(const QJsonValue& jv) const
{
const auto json = jv.toObject();
QHash<QString, T> h; h.reserve(json.size());
for (auto it = json.begin(); it != json.end(); ++it)
h.insert(it.key(), fromJson<T>(it.value()));
return h;
}
};
template <typename T> struct FromJson<std::unordered_map<QString, T>>
{
auto operator()(const QJsonValue& jv) const
{
const auto json = jv.toObject();
std::unordered_map<QString, T> h; h.reserve(size_t(json.size()));
for (auto it = json.begin(); it != json.end(); ++it)
h.insert(std::make_pair(it.key(), fromJson<T>(it.value())));
return h;
}
};
} // namespace QMatrixClient
|
