BlockView cosmetics, more enums, fixed right-click on bus point/segment move

libs/blockview/blockview.h

@@ -63,6 +63,8 @@ class QAD_BLOCKVIEW_EXPORT BlockView: public QGraphicsView
 	Q_PROPERTY(double _thumb READ _thumb WRITE _setThumb DESIGNABLE false SCRIPTABLE false)
 	Q_PROPERTY(QRectF _nav READ _nav WRITE _setNav DESIGNABLE false SCRIPTABLE false)
 
+	friend class BlockBusItem;
+
 public:
 	BlockView(QWidget * parent = 0);
 	BlockView(QGraphicsScene * scene, QWidget * parent = 0);
@@ -180,7 +182,7 @@ protected:
 	QList<BlockItem * > copy_items;
 	QList<BlockItemPin * > last_multiconnect_pl;
 	QList<BlockBusItem * > copy_buses, tmp_buses;
-	BlockBusItem tmp_bus, * match_bus, * bus_from;
+	BlockBusItem tmp_bus, * match_bus, * bus_from, * cur_bus;
 	BlockItemPin * hpin;
 	BlockItem * ghost_;
 	BlockViewWavetrace wavetrace;