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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file GUI/Model/Tune/FitParameterContainerItem.cpp
//! @brief Implements class FitParameterContainerItem.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#include "GUI/Model/Tune/FitParameterContainerItem.h"
#include "Base/Util/Assert.h"
#include "Fit/Param/Parameters.h"
#include "GUI/Model/Par/ParameterTreeItems.h"
#include "GUI/Model/Util/UtilXML.h"
namespace {
namespace Tag {
const QString FitParameter("FitParameter");
} // namespace Tag
} // namespace
FitParameterContainerItem::FitParameterContainerItem(QObject* parent)
: QObject(parent)
{
setObjectName("FitParameterContainer");
}
void FitParameterContainerItem::createFitParameter(ParameterItem* parameterItem)
{
ASSERT(parameterItem);
// prevents from making empty fit params without links
FitParameterItem* oldFitPar = oldFitParameterItemToBeRemoved(parameterItem);
if (!oldFitPar)
removeLink(parameterItem);
auto* fitPar = createBareFitParameterItem();
fitPar->setStartValue(parameterItem->valueOfLink());
fitPar->initMinMaxValues(parameterItem->limitsOfLink());
fitPar->addLinkItem(parameterItem->titleForFitItem(), parameterItem->link());
if (oldFitPar)
removeFitParameter(oldFitPar);
emit fitItemChanged();
}
void FitParameterContainerItem::removeFitParameter(FitParameterItem* fitPar)
{
m_fit_parameter_items.delete_element(fitPar);
updateFitParameterNames();
}
void FitParameterContainerItem::addToFitParameter(ParameterItem* parameterItem,
const QString& fitParName)
{
ASSERT(parameterItem);
// prevents from making empty fit params without links
FitParameterItem* oldFitPar = oldFitParameterItemToBeRemoved(parameterItem);
// prevents from moving tree parameter into its own fit parameter
if (oldFitPar && oldFitPar->displayName() == fitParName)
return;
if (!oldFitPar)
removeLink(parameterItem);
for (FitParameterItem* fitPar : fitParameterItems()) {
if (fitPar->displayName() == fitParName) {
fitPar->addLinkItem(parameterItem->titleForFitItem(), parameterItem->link());
break;
}
}
if (oldFitPar)
removeFitParameter(oldFitPar);
emit fitItemChanged();
}
//! Returns FitParameterItem for given link (path in model)
FitParameterItem* FitParameterContainerItem::fitParameterItem(const QString& link) const
{
for (FitParameterItem* item : fitParameterItems())
if (item->links().contains(link))
return item;
return nullptr;
}
FitParameterItem*
FitParameterContainerItem::fitParameterItem(const ParameterItem* parameterItem) const
{
return fitParameterItem(parameterItem->link());
}
QVector<FitParameterItem*> FitParameterContainerItem::fitParameterItems() const
{
return {m_fit_parameter_items.begin(), m_fit_parameter_items.end()};
}
QStringList FitParameterContainerItem::fitParameterNames() const
{
QStringList result;
for (FitParameterItem* item : fitParameterItems())
result.append(item->displayName());
return result;
}
void FitParameterContainerItem::removeLink(const ParameterItem* parameterItem) const
{
if (FitParameterItem* fitParItem = fitParameterItem(parameterItem))
fitParItem->removeLink(parameterItem->link());
}
FitParameterItem* FitParameterContainerItem::createBareFitParameterItem()
{
auto* fitPar = new FitParameterItem(this);
m_fit_parameter_items.push_back(fitPar);
updateFitParameterNames();
return fitPar;
}
bool FitParameterContainerItem::isEmpty() const
{
return fitParameterItems().isEmpty();
}
//! Propagate values to the corresponding parameter tree items of parameterContainer.
void FitParameterContainerItem::setValuesInParameterContainer(
const std::vector<double>& values, ParameterContainerItem* parameterContainer) const
{
ASSERT(parameterContainer);
int index(0);
for (auto* fitPar : fitParameterItems()) {
auto link_list = fitPar->linkItems();
if (link_list.empty())
continue;
for (FitParameterLinkItem* linkItem : link_list)
if (auto* itemInTuningTree = parameterContainer->findParameterItem(linkItem->link()))
itemInTuningTree->propagateValueToLink(values[index]);
index++;
}
}
void FitParameterContainerItem::pullValuesFromParameterContainer(
ParameterContainerItem* parameterContainer)
{
ASSERT(parameterContainer);
for (auto* fitPar : fitParameterItems()) {
auto link_list = fitPar->linkItems();
if (!link_list.empty()) {
FitParameterLinkItem* linkItem = link_list.last(); // update from last added link
if (auto* itemInTuningTree = parameterContainer->findParameterItem(linkItem->link()))
fitPar->setStartValue(itemInTuningTree->valueOfLink());
}
}
}
mumufit::Parameters FitParameterContainerItem::createParameters() const
{
mumufit::Parameters result;
int index(0);
for (auto* fitPar : fitParameterItems()) {
if (!fitPar->isValid())
throw std::runtime_error(
QString("FitParameterContainerItem::createParameters(): invalid starting value "
"or (min, max) range in fitting parameter par %1")
.arg(index)
.toStdString());
double startValue = fitPar->startValue();
AttLimits limits = fitPar->attLimits();
QString name = QString("par%1").arg(index);
result.add(mumufit::Parameter(name.toStdString(), startValue, limits));
++index;
}
return result;
}
void FitParameterContainerItem::writeTo(QXmlStreamWriter* w) const
{
// fit parameters
for (const auto* fitPar : m_fit_parameter_items) {
w->writeStartElement(Tag::FitParameter);
XML::writeAttribute(w, XML::Attrib::name, fitPar->displayName());
fitPar->writeTo(w);
w->writeEndElement();
}
}
void FitParameterContainerItem::readFrom(QXmlStreamReader* r)
{
while (r->readNextStartElement()) {
QString tag = r->name().toString();
if (tag == Tag::FitParameter) {
createBareFitParameterItem()->readFrom(r);
XML::gotoEndElementOfTag(r, tag);
} else
r->skipCurrentElement();
}
}
FitParameterItem*
FitParameterContainerItem::oldFitParameterItemToBeRemoved(ParameterItem* parameterItem) const
{
if (auto* fitPar = fitParameterItem(parameterItem))
if (fitPar->linkItems().size() == 1)
return fitPar;
return nullptr;
}
void FitParameterContainerItem::updateFitParameterNames()
{
int size = fitParameterItems().size();
for (int i = 0; i < size; i++) {
FitParameterItem* item = fitParameterItems()[i];
if (size > 1)
item->setDisplayName("par" + QString::number(i));
else
item->setDisplayName("par");
}
}
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