diff -r f5b526a3423a -r 07578e081ae8 commonlib/config.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commonlib/config.cpp	Sat Jun 06 23:12:59 2015 +0300
@@ -0,0 +1,100 @@
+/*
+ *  ZCinema: Zandronum demo launcher
+ *  Copyright (C) 2013-2015 Teemu Piippo
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <assert.h>
+#include <QDir>
+#include <QTextStream>
+#include <QSettings>
+#include "config.h"
+
+typedef QMap<QString, QVariant> DefaultsMap;
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+static QSettings* getSettingsObject()
+{
+	return new QSettings;
+}
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+static DefaultsMap& getDefaults()
+{
+	static DefaultsMap defaults;
+
+	if (defaults.isEmpty())
+	{
+		// Initialize defaults here.
+	}
+
+	return defaults;
+}
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+void Config::reset()
+{
+	DefaultsMap& defaults = getDefaults();
+
+	for (DefaultsMap::iterator it = defaults.begin(); it != defaults.end(); ++it)
+		set (it.key(), it.value());
+}
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+QVariant Config::get (const QString& name)
+{
+	QSettings* settings = getSettingsObject();
+	DefaultsMap& defaults = getDefaults();
+	DefaultsMap::iterator it = defaults.find (name);
+	QVariant def = it != defaults.end() ? *it : QVariant();
+	QVariant value = settings->value (name, def);
+	settings->deleteLater();
+	return value;
+}
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+bool Config::set (const QString& name, const QVariant& value)
+{
+	QSettings* settings = getSettingsObject();
+	settings->setValue (name, value);
+	settings->deleteLater();
+	return settings->status() == QSettings::NoError;
+}
+
+//
+// -------------------------------------------------------------------------------------------------
+//
+
+void Config::sync()
+{
+	QSettings* settings = getSettingsObject();
+	settings->sync();
+	settings->deleteLater();
+}