Created
June 25, 2020 15:26
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Convertion between Qt JSON and nlohmann/json
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#include "json/json.hpp" | |
#include <QJsonValue> | |
#include <QJsonArray> | |
#include <QJsonObject> | |
using namespace nlohmann; | |
json::value_type jsonutils::fromQJsonValue(const QJsonValue &v) | |
{ | |
if(v.isString()) | |
return json::value_type(v.toString().toUtf8().constData()); | |
if(v.isBool()) | |
return json::value_type(v.toBool()); | |
if(v.isDouble()) | |
return json::value_type(v.toDouble()); | |
if(v.isArray()) | |
{ | |
std::vector<json::value_type> ret; | |
for ( const auto & e : v.toArray()) | |
{ | |
ret.push_back(fromQJsonValue(e)); | |
} | |
return ret; | |
} | |
if(v.isObject()) | |
{ | |
std::map<std::string, json::value_type> ret; | |
for ( const QString & e : v.toObject().keys()) | |
{ | |
ret[e.toUtf8().constData()] = fromQJsonValue(v[e]); | |
} | |
return ret; | |
} | |
return json::value_type(); | |
} | |
QJsonValue jsonutils::toQJsonValue(const json::value_type &v) | |
{ | |
if(v.is_string()) | |
return QJsonValue(v.get<std::string>().c_str()); | |
if(v.is_boolean()) | |
return QJsonValue(v.get<bool>()); | |
if(v.is_number()) | |
return QJsonValue(v.get<double>()); | |
if(v.is_array()) | |
{ | |
QJsonArray ret; | |
for(const auto & i : v.get<std::vector<json::value_type> >()) | |
{ | |
ret.append(toQJsonValue(i)); | |
} | |
return QJsonValue(ret); | |
} | |
if(v.is_object()) | |
{ | |
QJsonObject ret; | |
for(const auto &[key,value] : v.get<std::map<std::string,json::value_type> >() ) | |
{ | |
ret[QString(key.c_str())] = toQJsonValue(value); | |
} | |
return QJsonValue(ret); | |
} | |
return QJsonValue(); | |
} |
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