navigator view wip

graphicsview.h

@@ -7,6 +7,7 @@
 class GraphicsScene;
 class GraphicsView : public QGraphicsView
 {
+    Q_OBJECT
 public:
     GraphicsView(QWidget *parent = nullptr);
 
@@ -30,6 +31,9 @@ public:
 
     void checkAndDoFitInView();
 
+signals:
+    void navigatorViewRequired(bool required, qreal angle);
+
 public slots:
     void toggleCheckerboard();