diff --git a/qad_blockview/blockeditor.cpp b/qad_blockview/blockeditor.cpp
index 737a854..2bd4560 100644
--- a/qad_blockview/blockeditor.cpp
+++ b/qad_blockview/blockeditor.cpp
@@ -248,6 +248,7 @@ void BlockEditor::on_treePins_itemChanged(QTreeWidgetItem * item, int column) {
 
 void BlockEditor::arrangePins() {
 	QVector<BlockItemPin * > pins = block.pins();
+//	block.clearPins();
 	QList<QTreeWidgetItem*> tli = pin_tli.values();
 	foreach (QTreeWidgetItem * ti, tli) {
 		for (int i = 0; i < ti->childCount(); ++i) {
@@ -338,3 +339,9 @@ void PinBusDelegate::setModelData(QWidget * editor, QAbstractItemModel * model,
 	model->setData(index, ((QSpinBox*)editor)->value());
 }
 
+
+
+//void BlockEditor::on_treePins_itemSelectionChanged() {
+//	arrangePins();
+//	qDebug() << "111111111111111";
+//}
diff --git a/qad_blockview/blockeditor.h b/qad_blockview/blockeditor.h
index e0a5234..71388b8 100644
--- a/qad_blockview/blockeditor.h
+++ b/qad_blockview/blockeditor.h
@@ -40,6 +40,7 @@ private slots:
 	void on_buttonPinDelete_clicked();
 	void on_buttonPinClear_clicked();
 	void on_treePins_itemChanged(QTreeWidgetItem *item, int column);
+//	void on_treePins_itemSelectionChanged();
 
 private:
 	bool eventFilter(QObject * o, QEvent * e);
diff --git a/qad_blockview/blockitem.cpp b/qad_blockview/blockitem.cpp
index 9477674..e5ae0b3 100644
--- a/qad_blockview/blockitem.cpp
+++ b/qad_blockview/blockitem.cpp
@@ -139,7 +139,7 @@ void BlockItem::_resize(QSizeF s) {
 
 BlockItemPin * BlockItem::addPin(BlockItemPin * pin, bool update_) {
 	pin->setParentItem(this);
-	pins_[pin->alignment()] << pin;
+	if (!pins_[pin->alignment()].contains(pin)) pins_[pin->alignment()] << pin;
 	pin->parent_ = this;
 	if (update_)
 		arrangePins();