1 /***************************************************************************
2 * Copyright (C) 2005-2014 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
24 #include <QCoreApplication>
32 class SettingsChangeNotifier : public QObject
37 void valueChanged(const QVariant &newValue);
40 friend class Settings;
47 enum Mode { Default, Custom };
50 //! Call the given slot on change of the given key
51 virtual void notify(const QString &key, QObject *receiver, const char *slot);
53 //! Sets up notification and calls the given slot to set the initial value
54 void initAndNotify(const QString &key, QObject *receiver, const char *slot, const QVariant &defaultValue = QVariant());
56 virtual uint version();
59 inline Settings(QString group_, QString appName_) : group(group_), appName(appName_) {}
60 inline virtual ~Settings() {}
62 inline void setGroup(const QString &group_) { group = group_; }
64 virtual QStringList allLocalKeys();
65 virtual QStringList localChildKeys(const QString &rootkey = QString());
66 virtual QStringList localChildGroups(const QString &rootkey = QString());
68 virtual void setLocalValue(const QString &key, const QVariant &data);
69 virtual const QVariant &localValue(const QString &key, const QVariant &def = QVariant());
71 virtual void removeLocalKey(const QString &key);
77 inline QSettings::Format format()
80 return QSettings::IniFormat;
82 return QSettings::NativeFormat;
87 inline QString fileName()
89 return Quassel::configDirPath() + appName
90 + ((format() == QSettings::NativeFormat) ? QLatin1String(".conf") : QLatin1String(".ini"));
94 static QHash<QString, QVariant> settingsCache;
95 static QHash<QString, SettingsChangeNotifier *> settingsChangeNotifier;
97 inline QString normalizedKey(const QString &group, const QString &key)
101 return group + '/' + key;
105 inline void setCacheValue(const QString &normKey, const QVariant &data)
107 settingsCache[normKey] = data;
111 inline const QVariant &cacheValue(const QString &normKey)
113 return settingsCache[normKey];
117 inline bool isCached(const QString &normKey)
119 return settingsCache.contains(normKey);
123 inline SettingsChangeNotifier *notifier(const QString &normKey)
125 if (!hasNotifier(normKey))
126 settingsChangeNotifier[normKey] = new SettingsChangeNotifier();
127 return settingsChangeNotifier[normKey];
131 inline bool hasNotifier(const QString &normKey)
133 return settingsChangeNotifier.contains(normKey);