Method dataChanged

src/backend/worksheet/plots/cartesian/CartesianPlot.cpp:2619–2666

! called when in one of the curves the data was changed. Autoscales the coordinate system and the x-axes, when "auto-scale" is active. */

	Autoscales the coordinate system and the x-axes, when "auto-scale" is active.
*/
void CartesianPlot::dataChanged(int xIndex, int yIndex, WorksheetElement* sender) {
	DEBUG(Q_FUNC_INFO << ", x/y index = " << xIndex << "/" << yIndex)
	if (isLoading())
		return;

	Q_D(CartesianPlot);
	if (d->suppressRetransform)
		return;

	if (xIndex == -1) {
		for (int i = 0; i < rangeCount(Dimension::X); i++)
			d->setRangeDirty(Dimension::X, i, true);
	} else
		d->setRangeDirty(Dimension::X, xIndex, true);

	if (yIndex == -1) {
		for (int i = 0; i < rangeCount(Dimension::Y); i++)
			d->setRangeDirty(Dimension::Y, i, true);
	} else
		d->setRangeDirty(Dimension::Y, yIndex, true);

	bool updated = false;
	if (autoScale(Dimension::X, xIndex) && autoScale(Dimension::Y, yIndex))
		updated = scaleAuto(xIndex, yIndex);
	else if (autoScale(Dimension::X, xIndex))
		updated = scaleAuto(Dimension::X, xIndex);
	else if (autoScale(Dimension::Y, yIndex))
		updated = scaleAuto(Dimension::Y, yIndex);

	if (updated)
		WorksheetElementContainer::retransform();
	else {
		// even if the plot ranges were not changed, either no auto scale active or the new data
		// is within the current ranges and no change of the ranges is required,
		// retransform the curve in order to show the changes
		if (sender)
			sender->retransform();
		else {
			// no sender available, the function was called directly in the file filter (live data source got new data) or in Project::load()-.
			// -> recalculate the internal structures in all plots and retransform them since we don't know which plots are affected.
			// TODO: this logic can be very expensive
			for (auto* plot : children<Plot>()) {
				plot->recalc();
				plot->retransform();
			}
		}
	}
}

void CartesianPlot::dataChanged(WorksheetElement* element) {
	DEBUG(Q_FUNC_INFO)