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39
40#ifndef QSETTINGS_H
41#define QSETTINGS_H
42
43#include <QtCore/qobject.h>
44#include <QtCore/qvariant.h>
45#include <QtCore/qstring.h>
46#include <QtCore/qscopedpointer.h>
47
48QT_REQUIRE_CONFIG(settings);
49
50#include <ctype.h>
51
52QT_BEGIN_NAMESPACE
53
54#ifdef Status // we seem to pick up a macro Status --> int somewhere
55#undef Status
56#endif
57
58class QIODevice;
59class QSettingsPrivate;
60
61#ifndef QT_NO_QOBJECT
62class Q_CORE_EXPORT QSettings : public QObject
63#else
64class Q_CORE_EXPORT QSettings
65#endif
66{
67#ifndef QT_NO_QOBJECT
68 Q_OBJECT
69#else
70 QScopedPointer<QSettingsPrivate> d_ptr;
71#endif
72 Q_DECLARE_PRIVATE(QSettings)
73
74public:
75 enum Status {
76 NoError = 0,
77 AccessError,
78 FormatError
79 };
80#ifndef QT_NO_QOBJECT
81 Q_ENUM(Status)
82#endif
83
84 enum Format {
85 NativeFormat,
86 IniFormat,
87
88#if defined(Q_OS_WIN) || defined(Q_CLANG_QDOC)
89 Registry32Format,
90 Registry64Format,
91#endif
92
93 InvalidFormat = 16,
94 CustomFormat1,
95 CustomFormat2,
96 CustomFormat3,
97 CustomFormat4,
98 CustomFormat5,
99 CustomFormat6,
100 CustomFormat7,
101 CustomFormat8,
102 CustomFormat9,
103 CustomFormat10,
104 CustomFormat11,
105 CustomFormat12,
106 CustomFormat13,
107 CustomFormat14,
108 CustomFormat15,
109 CustomFormat16
110 };
111#ifndef QT_NO_QOBJECT
112 Q_ENUM(Format)
113#endif
114
115 enum Scope {
116 UserScope,
117 SystemScope
118 };
119#ifndef QT_NO_QOBJECT
120 Q_ENUM(Scope)
121#endif
122
123#ifndef QT_NO_QOBJECT
124 explicit QSettings(const QString &organization,
125 const QString &application = QString(), QObject *parent = nullptr);
126 QSettings(Scope scope, const QString &organization,
127 const QString &application = QString(), QObject *parent = nullptr);
128 QSettings(Format format, Scope scope, const QString &organization,
129 const QString &application = QString(), QObject *parent = nullptr);
130 QSettings(const QString &fileName, Format format, QObject *parent = nullptr);
131 explicit QSettings(QObject *parent = nullptr);
132 explicit QSettings(Scope scope, QObject *parent = nullptr);
133#else
134 explicit QSettings(const QString &organization,
135 const QString &application = QString());
136 QSettings(Scope scope, const QString &organization,
137 const QString &application = QString());
138 QSettings(Format format, Scope scope, const QString &organization,
139 const QString &application = QString());
140 QSettings(const QString &fileName, Format format);
141# ifndef QT_BUILD_QMAKE
142 explicit QSettings(Scope scope = UserScope);
143# endif
144#endif
145 ~QSettings();
146
147 void clear();
148 void sync();
149 Status status() const;
150 bool isAtomicSyncRequired() const;
151 void setAtomicSyncRequired(bool enable);
152
153 void beginGroup(const QString &prefix);
154 void endGroup();
155 QString group() const;
156
157 int beginReadArray(const QString &prefix);
158 void beginWriteArray(const QString &prefix, int size = -1);
159 void endArray();
160 void setArrayIndex(int i);
161
162 QStringList allKeys() const;
163 QStringList childKeys() const;
164 QStringList childGroups() const;
165 bool isWritable() const;
166
167 void setValue(const QString &key, const QVariant &value);
168 QVariant value(const QString &key, const QVariant &defaultValue = QVariant()) const;
169
170 void remove(const QString &key);
171 bool contains(const QString &key) const;
172
173 void setFallbacksEnabled(bool b);
174 bool fallbacksEnabled() const;
175
176 QString fileName() const;
177 Format format() const;
178 Scope scope() const;
179 QString organizationName() const;
180 QString applicationName() const;
181
182#if QT_CONFIG(textcodec)
183 void setIniCodec(QTextCodec *codec);
184 void setIniCodec(const char *codecName);
185 QTextCodec *iniCodec() const;
186#endif
187
188 static void setDefaultFormat(Format format);
189 static Format defaultFormat();
190#if QT_DEPRECATED_SINCE(5, 13)
191 QT_DEPRECATED_X("Use QSettings::setPath() instead")
192 static void setSystemIniPath(const QString &dir);
193 QT_DEPRECATED_X("Use QSettings::setPath() instead")
194 static void setUserIniPath(const QString &dir);
195#endif
196 static void setPath(Format format, Scope scope, const QString &path);
197
198 typedef QMap<QString, QVariant> SettingsMap;
199 typedef bool (*ReadFunc)(QIODevice &device, SettingsMap &map);
200 typedef bool (*WriteFunc)(QIODevice &device, const SettingsMap &map);
201
202 static Format registerFormat(const QString &extension, ReadFunc readFunc, WriteFunc writeFunc,
203 Qt::CaseSensitivity caseSensitivity = Qt::CaseSensitive);
204
205protected:
206#ifndef QT_NO_QOBJECT
207 bool event(QEvent *event) override;
208#endif
209
210private:
211 Q_DISABLE_COPY(QSettings)
212};
213
214QT_END_NAMESPACE
215
216#endif // QSETTINGS_H
217

source code of qtbase/src/corelib/io/qsettings.h