Introduce Settingsprovider to read settings

Previously, it was in the configprovider.cpp.

Now, it has been split to this file

settingsprovider.cpp

@@ -0,0 +1,27 @@
+#include "settingsprovider.h"
+#include <QFileInfo>
+#include <QDir>
+
+SettingsProvider::SettingsProvider(QSettings &settings)
+{
+	this->settings = &settings;
+}
+
+QStringList SettingsProvider::userEntriesPaths() const
+{
+	//TODO: make it configurable, but we stick with this for now.
+	QFileInfo fi(this->settings->fileName());
+	return { fi.absoluteDir().absolutePath() };
+}
+
+QStringList SettingsProvider::systemApplicationsEntriesPaths() const
+{
+	return settings->value("sysAppsPaths", "/usr/share/applications/").toStringList();
+}
+
+bool SettingsProvider::singleInstanceMode() const
+{
+	return settings->value("singleInstance", true).toBool();
+}
+
+

settingsprovider.h

@@ -0,0 +1,18 @@
+#ifndef SETTINGSPROVIDER_H
+#define SETTINGSPROVIDER_H
+
+#include <stdexcept>
+#include <QSettings>
+
+class SettingsProvider
+{
+private:
+	QSettings *settings;
+public:
+	SettingsProvider(QSettings &settings);
+	virtual QStringList userEntriesPaths() const;
+	virtual QStringList systemApplicationsEntriesPaths() const;
+	virtual bool singleInstanceMode() const;
+};
+
+#endif // SETTINGSPROVIDER_H