debugged a crash, keys are now fetching, refactored main, added some exceptions instead of ints, debugged termination process

main/root.h

@@ -18,11 +18,53 @@
 #define ROOT_H
 
 #include <QApplication>
+#include <QTranslator>
+#include <QIcon>
+#include <QSettings>
+#include <QThread>
+
+#include <vector>
+
+#include <core/squawk.h>
+#include <core/signalcatcher.h>
+
+#include <shared/global.h>
+
+#include "application.h"
 
 class Root : public QApplication {
+    Q_OBJECT
 public:
     Root(int& argc, char* argv[]);
+    ~Root();
     bool notify(QObject* receiver, QEvent* e) override;
+    int run();
+
+    bool initializeSettings();
+
+private slots:
+    void onCoreDestroyed();
+
+private:
+    void initializeTranslation();
+    void initializeAppIcon();
+    void initializeComponents();
+
+private:
+    static const std::vector<unsigned int> appIconSizes;
+
+    SignalCatcher signalCatcher;
+    QTranslator defaultTranslator;
+    QTranslator currentTranslator;
+    QIcon appIcon;
+    QSettings settings;
+    bool componentsInitialized;
+
+    Shared::Global* global;
+    QThread* coreThread;
+    Core::Squawk* core;
+    Application* gui;
+
 };
 
 #endif // ROOT_H