bus joint paint now configured with BlockView::setBusSquareNodes(), square or round. By default round

qad/blockview/blockbusitem.h

@@ -64,6 +64,7 @@ public:
 	double width() const {return pen_width;}
 	void setWidth(const double & w);
 	void setColor(const QColor & c);
+	void setSquareNodes(bool yes);
 	int addPoint(const QPointF & point, bool update = true);
 	int segmentPointPair(int point, int * seg = 0) const;
 	void removePoint(int index);
@@ -122,7 +123,7 @@ protected:
 	QImage im_bus, im_end;
 	QPolygonF pol, bpol, pol_s;
 	Qt::KeyboardModifiers mm_mods;
-	bool temp_;
+	bool temp_, square_node;
 	double pen_width, grid_step, im_bus_scale, im_end_scale;
 	int selPoint, selSegment, max_ep, bus_type, state_;
 	bool moved, deleted, mark_in, mark_out, new_segment, mm_cancel, lm_point;