Method keyPressEvent

src/backend/worksheet/plots/cartesian/CartesianPlot.cpp:4377–4431

}

void CartesianPlotPrivate::keyPressEvent(QKeyEvent* event) {
	const auto key = event->key();
	// const bool ctrl = event->modifiers() & Qt::KeyboardModifier::ControlModifier;
	//	const bool shift = event->modifiers() & Qt::KeyboardModifier::ShiftModifier;
	//	const bool alt = event->modifiers() & Qt::KeyboardModifier::AltModifier;
	Action a = evaluateKeys(key, event->modifiers());

	if (a == Action::Abort) {
		m_selectionBandIsShown = false;
	} else if (a & Action::Move) {
		const auto* worksheet = static_cast<const Worksheet*>(q->parentAspect());
		if (worksheet->layout() == Worksheet::Layout::NoLayout) {
			// no layout is active -> use arrow keys to move the plot on the worksheet
			const int delta = 5;
			QRectF rect = q->rect();

			if (a == Action::MoveLeft) {
				rect.setX(rect.x() - delta);
				rect.setWidth(rect.width() - delta);
			} else if (a == Action::MoveRight) {
				rect.setX(rect.x() + delta);
				rect.setWidth(rect.width() + delta);
			} else if (a == Action::MoveUp) {
				rect.setY(rect.y() - delta);
				rect.setHeight(rect.height() - delta);
			} else if (a == Action::MoveDown) {
				rect.setY(rect.y() + delta);
				rect.setHeight(rect.height() + delta);
			}

			q->setRect(rect);
		}
	} else if (a == Action::NavigateNextCurve) // (key == Qt::Key_Tab)
		navigateNextPrevCurve();
	else if (a == Action::NavigatePrevCurve) // (key == Qt::SHIFT + Qt::Key_Tab)
		navigateNextPrevCurve(false /*next*/);
	else if (a & Action::New) {
		const auto* cSystem{defaultCoordinateSystem()};
		if (cSystem->isValid()) {
			logicalPos = cSystem->mapSceneToLogical(scenePos, AbstractCoordinateSystem::MappingFlag::Limit);
			calledFromContextMenu = true;
		}
		if (a == Action::NewTextLabel)
			q->addTextLabel();
		else if (a == Action::NewReferenceLine)
			q->addReferenceLine();
		else if (a == Action::NewReferenceRange)
			q->addReferenceRange();
		else if (a == Action::NewCustomPoint)
			q->addCustomPoint();
		else if (a == Action::NewImage)
			q->addImage();
	}
	QGraphicsItem::keyPressEvent(event);
}

void CartesianPlotPrivate::navigateNextPrevCurve(bool next) const {
	const auto& curves = q->children<XYCurve>();