Niffler/utils.cpp at master · andrmor/Niffler · GitHub

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
#include "utils.h"

#include <limits>

#include <QFile>
#include <QTextStream>
#include <QJsonDocument>
#include <QFileDialog>
#include <QDebug>

bool parseJson(const QJsonObject &json, const QString &key, bool &var)
{
  if (json.contains(key))
    {
      var = json[key].toBool();
      return true;
    }
  else return false;
}
bool parseJson(const QJsonObject &json, const QString &key, int &var)
{
  if (json.contains(key))
    {
      var = json[key].toInt();
      return true;
    }
  else return false;
}
bool parseJson(const QJsonObject &json, const QString &key, unsigned int &var)
{
  if (json.contains(key))
    {
      unsigned int tmp = json[key].toInt();
      if (tmp>=0 && tmp<std::numeric_limits<unsigned int>::max())
      {
          var = tmp;
          return true;
      }
    }
  return false;
}
bool parseJson(const QJsonObject &json, const QString &key, double &var)
{
  if (json.contains(key))
    {
      var = json[key].toDouble();
      return true;
    }
  else return false;
}
bool parseJson(const QJsonObject &json, const QString &key, float &var)
{
  if (json.contains(key))
    {
      var = json[key].toDouble();
      return true;
    }
  else return false;
}
bool parseJson(const QJsonObject &json, const QString &key, QString &var)
{
  if (json.contains(key))
    {
      var = json[key].toString();
      return true;
    }
  else return false;
}

bool parseJson(const QJsonObject &json, const QString &key, QJsonArray &var)
{
  if (json.contains(key))
    {
      var = json[key].toArray();
      return true;
    }
  else return false;
}

bool LoadJsonFromFile(QJsonObject &json, QString fileName)
{
    QFile loadFile(fileName);
    if (loadFile.open(QIODevice::ReadOnly))
    {
        QByteArray saveData = loadFile.readAll();
        QJsonDocument loadDoc(QJsonDocument::fromJson(saveData));
        json = loadDoc.object();
        loadFile.close();
        return true;
    }
    qWarning() << "Cannot open file: "+fileName;
    return false;
}

bool SaveJsonToFile(QJsonObject &json, QString fileName)
{
    QJsonDocument saveDoc(json);
    QFile saveFile(fileName);
    if (saveFile.open(QIODevice::WriteOnly))
    {
        saveFile.write(saveDoc.toJson());
        saveFile.close();
        return true;
    }
    qWarning() << "Couldn't save json to file: "+fileName;
    return false;
}

bool LoadFloatVectorsFromFile(QString FileName, QVector<float>* x, QVector<float>* y, QVector<float>* z)
{
    if (FileName.isEmpty()) return false;

    QFile file(FileName);
    if(!file.open(QIODevice::ReadOnly | QFile::Text)) return false;

    QTextStream in(&file);
    QRegExp rx("(\\ |\\,|\\:|\\t)"); //separators: ' ' or ',' or ':' or '\t'
    x->resize(0);
    y->resize(0);
    z->resize(0);
    while(!in.atEnd())
    {
        QString line = in.readLine();
        QStringList fields = line.split(rx, QString::SkipEmptyParts);

        bool ok1=false, ok2, ok3;
        double xx, yy, zz;
        if (fields.size() > 2 )
        {
            xx = fields[0].toDouble(&ok1);  //*** potential problem with decimal separator!
            yy = fields[1].toDouble(&ok2);
            zz = fields[2].toDouble(&ok3);
        }
        if (ok1 && ok2 && ok3)
        {
            x->append(xx);
            y->append(yy);
            z->append(zz);
        }
    }
    file.close();

    if (x->isEmpty()) return false;
    return true;
}

const QString JsonToString(QJsonObject &json)
{
    QJsonDocument doc(json);
    QString str(doc.toJson(QJsonDocument::Compact));
    return str;
}

const QJsonObject StringToJson(const QString string)
{
    QJsonDocument doc = QJsonDocument::fromJson(string.toUtf8());

    if(!doc.isNull())
        if(doc.isObject())
            return doc.object();

    qDebug() << "String is not a QJsonObject!";
    return QJsonObject();
}