add settings reset functionality

src/main.cpp

@@ -18,6 +18,7 @@
  */
 
 #include "mainwindow.h"
+#include "settingsmanager.h"
 #include <QApplication>
 #include <QDebug>
 #include <QDir>
@@ -31,6 +32,16 @@
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
+    QCoreApplication::setOrganizationName("iDescriptor");
+    QCoreApplication::setApplicationName("iDescriptor");
+    QCoreApplication::setApplicationVersion(APP_VERSION);
+
+    if (a.arguments().contains("--reset-settings")) {
+        SettingsManager::sharedInstance()->clear();
+        QMessageBox::information(nullptr, "Settings Reset",
+                                 "All application settings have been reset to "
+                                 "their default values.");
+    }
 #ifdef WIN32
     QString appPath = QCoreApplication::applicationDirPath();
     QString gstPluginPath =
@@ -66,9 +77,6 @@ int main(int argc, char *argv[])
     setenv("GST_PLUGIN_SYSTEM_PATH", gstPluginPath.toUtf8().constData(), 1);
     setenv("GST_PLUGIN_SCANNER", gstPluginScannerPath.toUtf8().constData(), 1);
 #endif
-    QCoreApplication::setOrganizationName("iDescriptor");
-    QCoreApplication::setApplicationName("iDescriptor");
-    QCoreApplication::setApplicationVersion(APP_VERSION);
 #ifndef __APPLE__
     QApplication::setStyle(QStyleFactory::create("Fusion"));
 #endif

src/settingsmanager.cpp

@@ -50,9 +50,12 @@ void SettingsManager::showSettingsDialog()
 SettingsManager::SettingsManager(QObject *parent) : QObject{parent}
 {
     m_settings = new QSettings(this);
+}
 
-    // Clean up any invalid favorite places on startup
-    // cleanupFavoritePlaces();
+void SettingsManager::clear()
+{
+    m_settings->clear();
+    m_settings->sync();
 }
 
 QString SettingsManager::devdiskimgpath() const

src/settingsmanager.h

@@ -95,6 +95,7 @@ public:
     // Reset to defaults
     void resetToDefaults();
 
+    void clear();
 signals:
     void favoritePlacesChanged();
     void recentLocationsChanged();