Fix non-QWidgets enabled builds

CMakeLists.txt

@@ -43,13 +43,16 @@ if(NOT UBUNTU_TOUCH)
 		DESCRIPTION "Integration with QWidget based desktop styles"
 		TYPE OPTIONAL
 	)
-	if(Qt5Widgets_FOUND)
-		set(HAVE_QWIDGETS 1)
-		add_definitions(-DHAVE_QWIDGETS)
+endif()
+
+if(Qt5Widgets_FOUND)
+	add_definitions(-DHAVE_QWIDGETS -DQAPPLICATION_CLASS=QApplication)
 	set(__Qt5Widgets_LIBRARIES Qt5::Widgets)
-	endif()
+else()
+	add_definitions(-DQAPPLICATION_CLASS=QGuiApplication)
 endif()
 
+
 #
 # Load submodules
 #

src/main.cpp

@@ -32,11 +32,6 @@
 #include <QCommandLineParser>
 #include <QCommandLineOption>
 #include <QDebug>
-#if HAVE_QWIDGETS
-#include <QApplication>
-#else
-#include <QGuiApplication>
-#endif
 #include <QLocale>
 #include <qqml.h>
 #include <QQmlApplicationEngine>
@@ -54,6 +49,12 @@
 #include "Globals.h"
 #include "Enums.h"
 #include "StatusBar.h"
+
+#ifndef QAPPLICATION_CLASS
+#define QAPPLICATION_CLASS QApplication
+#endif
+#include QT_STRINGIFY(QAPPLICATION_CLASS)
+
 // SingleApplication (Qt5 replacement for QtSingleApplication)
 #include "singleapp/singleapplication.h"