Method sourceChanged

src/backend/worksheet/plots/cartesian/XYAnalysisCurve.cpp:464–492

! * called when one of the source objects was changed, * updates the path and triggers the recalculate. */

 * updates the path and triggers the recalculate.
 */
void XYAnalysisCurvePrivate::sourceChanged() {
	updateConnections();

	if (q->isLoading())
		return;

	if (xDataColumn)
		q->setXDataColumnPath(xDataColumn->path());
	else
		q->setXDataColumnPath(QString());

	if (yDataColumn)
		q->setYDataColumnPath(yDataColumn->path());
	else
		q->setYDataColumnPath(QString());

	if (y2DataColumn)
		q->setY2DataColumnPath(y2DataColumn->path());
	else
		q->setY2DataColumnPath(QString());

	if (dataSourceCurve)
		q->setDataSourceCurvePath(dataSourceCurve->path());
	else
		q->setDataSourceCurvePath(QString());

	if (!q->isLoading())
		recalculate();
}

void XYAnalysisCurvePrivate::updateConnections() {
	for (auto c : m_connections)