diff --git a/qad/blockview/blockview.cpp b/qad/blockview/blockview.cpp
index 4f89b35..62c6d18 100644
--- a/qad/blockview/blockview.cpp
+++ b/qad/blockview/blockview.cpp
@@ -956,6 +956,30 @@ bool BlockView::connectPins(BlockItemPin * p0, BlockItemPin * p1) {
 }
 
 
+void BlockView::setTransform(const QTransform & matrix, bool combine) {
+	QGraphicsView::setTransform(matrix, combine);
+	nav_target = _nav();
+}
+
+
+void BlockView::centerOn(const QPointF & pos) {
+	QGraphicsView::centerOn(pos);
+	nav_target = _nav();
+}
+
+
+void BlockView::centerOn(qreal x, qreal y) {
+	QGraphicsView::centerOn(x, y);
+	nav_target = _nav();
+}
+
+
+void BlockView::centerOn(const QGraphicsItem * item) {
+	QGraphicsView::centerOn(item);
+	nav_target = _nav();
+}
+
+
 void BlockView::restoreSelState() {
 	foreach (QGraphicsItem * i, sel_items) {
 		i->setPos(i->data(1001).toPointF());
diff --git a/qad/blockview/blockview.h b/qad/blockview/blockview.h
index 2f5f996..d6c9c99 100644
--- a/qad/blockview/blockview.h
+++ b/qad/blockview/blockview.h
@@ -73,6 +73,11 @@ public:
 	QList<BlockBusItem * > connectionBuses(BlockItem * b0, BlockItem * b1) const;
 	bool connectPins(BlockItemPin * p0, BlockItemPin * p1);
 
+	void setTransform(const QTransform & matrix, bool combine = false);
+	void centerOn(const QPointF & pos);
+	void centerOn(qreal x, qreal y);
+	void centerOn(const QGraphicsItem * item);
+
 protected:
 	void _init();
 	void _updateBack();