small refactoring

glwidget.h

@@ -67,8 +67,8 @@ public:
 	Scene * scene();
 
 	void addObject(ObjectBase * o);
-    QByteArray saveCamera();
-    void restoreCamera(const QByteArray & ba);
+	QByteArray saveCamera();
+	void restoreCamera(const QByteArray & ba);
 
 public slots:
 	void stop();
@@ -97,8 +97,6 @@ private:
 	QWidget * container;
 	QGLView * view_;
 	QLayout * lay;
-
-signals:
 };
 
 #endif // GLWIDGET_H