refactoring, moving out GraphWidget::modifyRoute

lib/qtgraph/graphwidget.cpp

@@ -192,6 +192,15 @@ void GraphWidget::keyPressEvent(QKeyEvent *e)
       break;
     }
     case Qt::Key_Space: {
+      modifyRoute();
+    }
+    default:
+        QGraphicsView::keyPressEvent(e);
+    }
+}
+
+void GraphWidget::modifyRoute()
+{
   for (QList<Edge*>::iterator it = m_route.begin(); it != m_route.end(); ++it)
     (*it)->setIsRoute(false);
 
@@ -215,10 +224,7 @@ void GraphWidget::keyPressEvent(QKeyEvent *e)
       (*it)->setIsRoute(true);
   }
 }
-    default:
-        QGraphicsView::keyPressEvent(e);
-    }
-}
+
 
 void GraphWidget::removeEdge(Node* selectedNode, Node* nodeUnderMouse)
 {

lib/qtgraph/graphwidget.hpp

@@ -38,6 +38,7 @@ private:
   void removeNode(Node* selectedNode);
   void insertEdge(Node* selectedNode, Node* nodeUnderMouse);
   void removeEdge(Node* selectedNode, Node* nodeUnderMouse);
+  void modifyRoute();
 
   Graph<float2>* m_graph;
   QPixmap* m_background;