HYTOS

            elif type(param) is QEngineeringLineNoTextItem:

                rect = None

                for run in param.runs:

                    for item in run.items:

                        rect = item.sceneBoundingRect() if rect is None else rect.united(item.sceneBoundingRect())

                if rect is None:

                    rect = param.sceneBoundingRect()

                self.imageViewer.centerOn(rect.center())

                rect.translate(-FIT_WINDOW_SIZE, -FIT_WINDOW_SIZE)

                rect.setWidth(rect.width() + FIT_WINDOW_SIZE * 2)

                rect.setHeight(rect.height() + FIT_WINDOW_SIZE * 2)

                topLeft = rect.topLeft()

                bottomRight = rect.bottomRight()

                self.imageViewer.scene().clearSelection()

                self.imageViewer.updateViewer(QRectF(topLeft.x(), topLeft.y(), bottomRight.x() - topLeft.x(),

                                                        bottomRight.y() - topLeft.y()))

                for run in param.runs:

                    for item in run.items:

                        item.setSelected(True)

                        item.update()

                param.setSelected(True)

                param.update()