BlockView selection fix - many bugs with 1 fix (ctrl+click, ctrl+selection_rect, selection disappear)

libs/blockview/blockbusitem.cpp

@@ -1,4 +1,5 @@
 #include "blockview.h"
+#include <QApplication>
 
 
 BlockBusItem::BlockBusItem(bool temp): QGraphicsObject(), PropertyStorage() {
@@ -572,6 +573,11 @@ void BlockBusItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * e) {
 	setPen(pu); setBrush(bu);
 	setToolTip(QString());
 	anim_point_size.stop();
+	BlockView * bv = 0;
+	if (!scene()->views().isEmpty())
+		bv = qobject_cast<BlockView*>(scene()->views().back());
+	if (bv && (QApplication::mouseButtons() == 0))
+		bv->cur_bus = 0;
 	update();
 	QGraphicsObject::hoverLeaveEvent(e);
 }