void AssociationsDialog::changePlotAssociation(int curve, const QString &text) {
DataCurve *c = (DataCurve *)graph->curve(curve); // c_keys[curve]);
if (!c) return;
if (c->plotAssociation() == text) return;
QStringList lst = text.split(",", QString::SkipEmptyParts);
if (lst.count() == 2) {
c->setXColumnName(lst[0].remove("(X)"));
c->setTitle(lst[1].remove("(Y)"));
c->loadData();
} else if (lst.count() == 3) { // curve with error bars
QwtErrorPlotCurve *er = (QwtErrorPlotCurve *)c;
QString xColName = lst[0].remove("(X)");
QString yColName = lst[1].remove("(Y)");
QString erColName = lst[2].remove("(xErr)").remove("(yErr)");
DataCurve *master_curve = graph->masterCurve(xColName, yColName);
if (!master_curve) return;
int type = QwtErrorPlotCurve::Vertical;
if (text.contains("(xErr)")) type = QwtErrorPlotCurve::Horizontal;
er->setDirection(type);
er->setTitle(erColName);
if (master_curve != er->masterCurve())
er->setMasterCurve(master_curve);
else
er->loadData();
} else if (lst.count() == 4) {
VectorCurve *v = (VectorCurve *)c;
v->setXColumnName(lst[0].remove("(X)"));
v->setTitle(lst[1].remove("(Y)"));
QString xEndCol = lst[2].remove("(X)").remove("(A)");
QString yEndCol = lst[3].remove("(Y)").remove("(M)");
if (v->vectorEndXAColName() != xEndCol ||
v->vectorEndYMColName() != yEndCol)
v->setVectorEnd(xEndCol, yEndCol);
else
v->loadData();
}
graph->notifyChanges();
}
