fix memory leak

src/Application.cpp

@@ -23,10 +23,10 @@ Application::Application(int& argc, char** argv) :
 #endif
 
     // Load translations
-    m_translatorQt = new QTranslator();
+    m_translatorQt = new QTranslator(this);
     m_translatorQt->load("qt_" + QLocale::system().name(), QLibraryInfo::location(QLibraryInfo::TranslationsPath));
     installTranslator(m_translatorQt);
-    m_translatorApp = new QTranslator();
+    m_translatorApp = new QTranslator(this);
     m_translatorApp->load("tr_" + QLocale::system().name(), "translations");
     installTranslator(m_translatorApp);
 
@@ -92,6 +92,11 @@ Application::Application(int& argc, char** argv) :
     }
 }
 
+Application::~Application()
+{
+    delete m_mainWindow;
+}
+
 bool Application::event(QEvent* event)
 {
     switch(event->type())

src/Application.h

@@ -12,6 +12,7 @@ class Application : public QApplication
 
 public:
     explicit Application(int& argc, char** argv);
+    virtual ~Application();
 
     bool dontShowMainWindow() { return m_dontShowMainWindow; }